CN106123740A - A kind of forklift door frame channel-section steel certain height inner width survey tool and measuring method thereof - Google Patents

Abstract

The invention provides a tool for measuring the inner width of a specific height channel steel of a forklift door frame and a measuring method thereof. The measuring tool includes a first measuring block and a second measuring block: a first measuring plane is set on the first measuring block, which is used to measure the upper limit value of the inner width of the channel steel of the forklift door frame at a specific height; The measuring block is provided with a second measuring plane, which is used to measure the lower limit value of the inner width of the channel steel of the forklift mast frame at a specific height. Align the first measurement plane and the second measurement plane with the web of the channel steel under test respectively, so that the measurement plate moves vertically to the channel steel under test, and pass the height positioning block on the measurement plane with the web plate of the channel steel under test or the two side walls The contact with the inner side of the flange of the measured channel steel can quickly determine whether the specific height and inner width of the gantry channel steel is qualified, thereby reducing the measurement time, reducing the measurement error, and improving measurement accuracy and production efficiency.

Description

A tool for measuring the internal width of channel steel of a forklift mast frame at a specific height and its measuring method

technical field

The invention belongs to the technical field of channel steel size measurement, in particular, the invention relates to a tool for measuring the inner width of a channel steel of a forklift mast frame at a specific height and a measuring method thereof.

Background technique

Based on the purpose of improving the operation stability of the forklift mast, some high-end forklift companies arrange the end face of the roller and the channel steel web at a certain angle, and increase the contact area between the roller and the channel steel flange to achieve the purpose of improving safety and stability . The working surface of the roller is in contact with the flange of the channel steel at a certain height above the web of the channel steel. In order to ensure the stable operation of the roller on the flange of the channel steel, the inner width accuracy of the specific height of the channel steel must be guaranteed.

In iron and steel production, considering high temperature working conditions and precision requirements, vernier calipers are usually used for steel size measurement. The measurement results of steel size are compared with the nominal size, and it is judged whether the steel size meets the standard requirements according to the allowable tolerance range.

For H-beams with regular shape and no inclination inside the flange, the inner width can be measured with a vernier caliper to ensure high measurement accuracy, which is a convenient and quick method for measuring the inner width of the bezel. This is because the inner surfaces of the measuring claws of the vernier caliper are parallel to each other, and the inner sides of the flange of the H-shaped steel have no slope and are two parallel surfaces. When measuring the distance between two parallel surfaces, when the inner side of the measuring claw of the vernier caliper is close to the measuring surface, an accurate measurement result can be obtained.

For the gantry channel steel with a slope on the inner side of the flange, the inner width at a certain height above the web cannot be directly measured by a vernier caliper. You can first mark the measurement height plane on both sides, and then use the vernier caliper to measure the inner width. This method is subject to human factors. Influenced by the influence, there are errors in the marking of the measurement height plane and the measurement of the vernier caliper, which can easily lead to distortion of the measurement data.

There are many tools for measuring the width of the channel steel of the hot-rolled forklift mast. For example, the application date is May 25, 2012, and the application number is 201220239517.2. According to the Chinese patent document, the measuring tool includes two measuring bodies corresponding to the groove width, and the widths of the two measuring bodies are respectively the upper and lower limits of the groove width. However, this measurement tool is limited to measuring the channel steel of the portal frame where the inner side of the flange is perpendicular to the web and the inner sides of the two flanges are parallel to each other.

Contents of the invention

In order to solve the precise measurement of the inner width of the forklift mast channel steel with a slope on the inner side of the flange at a specific height and overcome the defects of the above-mentioned measuring device and measurement method, the present invention starts from the requirements for the measurement of the inner width of the forklift mast channel steel at a specific height. Provided are a tool for measuring the inner width of a specific height channel steel of a forklift mast and a measuring method thereof.

In order to solve the above problems, the present invention provides a specific height inner width measuring tool and measuring method for the channel steel of a forklift mast, and its technical scheme is as follows:

A tool for measuring the internal width of a forklift mast channel steel at a specific height, which includes a first measuring block and a second measuring block: a first measuring plane is arranged on the first measuring block, and two ends of the first measuring plane are connected to each other. The corresponding two side walls are respectively the first side wall of the first measurement plane and the second side wall of the first measurement plane, and a height positioning block is installed on the first measurement plane, and the length of the first measurement plane is the forklift mast The upper limit value of the inner width of the specific height of the channel steel, the first measuring block is used to measure the upper limit value of the inner width of the specific height of the channel steel of the forklift mast; the second measuring block is provided with a second measuring plane, and The two side walls corresponding to the two ends of the second measurement plane are respectively the first side wall of the second measurement plane and the second side wall of the second measurement plane, and a height positioning block is installed on the second measurement plane, and the second measurement plane The length of the measuring plane is the lower limit value of the inner width of the channel steel of the forklift mast frame at a specific height, and the second measuring block is used for measuring the lower limit value of the inner width of the channel steel of the forklift mast frame at a specific height.

As for the above-mentioned tool for measuring the inner width of the channel steel of the forklift mast at a specific height, it is further preferred that the first measuring block and the second measuring block are integrally structured.

As the above-mentioned tool for measuring the internal width of the forklift mast channel steel at a specific height, it is further preferred that: the first measurement plane and the second measurement plane are arranged parallel to each other, and the first side wall and the first measurement plane of the first measurement plane The included angle formed by the second side wall of the measurement plane and the first measurement plane is equal to 90°, and the first side wall of the second measurement plane and the second side wall of the second measurement plane are respectively formed by the second measurement plane. The included angle is equal to 90°.

As for the above-mentioned tool for measuring the internal width of the channel steel of the forklift mast at a specific height, it is further preferred that: both the first measuring block and the second measuring block are quadrangular structural blocks.

As the above-mentioned forklift mast channel steel specific height inner width measuring tool, it is further preferred that two height positioning blocks are installed on the first measuring block, which are respectively the first height positioning block and the second height positioning block, The first height positioning block and the second height positioning block have the same structure and are arranged parallel to each other. The heights of the first height positioning block and the second height positioning block are the same as the specific height of the channel steel of the forklift mast; The second measuring block is equipped with two height positioning blocks, which are respectively the third height positioning block and the fourth height positioning block, and the structure of the third height positioning block and the fourth height positioning block are the same. Arranged in parallel, the heights of the third height positioning block and the fourth height positioning block are both the same as the specific height of the channel steel of the forklift mast.

As in the above-mentioned forklift mast channel steel width measuring tool at a specific height, it is further preferred that the distance between the first height positioning block and the second height positioning block is the same as the distance between the third height positioning block and the fourth height positioning block. The positioning blocks are equally spaced.

As the above-mentioned tool for measuring the inner width of the channel steel of the forklift mast at a specific height, it is further preferred that: the distance between the outer side of the first height positioning block and the second height positioning block and the adjacent side wall is greater than the inner circle of the measured channel steel Arc radius; the distance between the outside of the third height positioning block and the fourth height positioning block and the adjacent side wall is greater than the inner arc radius of the measured channel steel.

As for the above-mentioned tool for measuring the internal width of the channel steel of the forklift mast at a specific height, it is further preferred that the thicknesses of the first measuring block and the second measuring block are both 5-15 mm.

The tool for measuring the internal width of the channel steel of the forklift mast as described above at a specific height is further preferably: further comprising a vertical scale, the bottom surface of which is a horizontal plane, and the horizontal plane is parallel to the web of the channel steel of the forklift mast; The first measurement block and the second measurement block are arranged on the vertical scale to move up and down along the length direction of the vertical scale, and the first measurement plane and the second measurement plane are in line with the vertical scale. parallel to the horizontal plane.

A method for measuring the inner width of a channel steel of a forklift mast at a specific height, comprising:

Step 1, the above-mentioned measuring tool is perpendicular to the web and flange of the channel steel to be measured at the same time, and the first measurement plane is parallel to the web of the channel steel, so that the first measuring block faces the web of the channel steel to be measured Move, when the height positioning block on the first measurement plane is not in contact with the measured channel steel web, there is a gap, or the height positioning block on the first measurement plane is in contact with the measured channel steel web and the first When the first side wall of the first measurement plane of a measurement block and the second side wall of the first measurement plane are in close contact with the inner side of the channel steel flange, the inner width of the specified height of the measured channel steel is within the upper limit; when the first measurement plane The height positioning block on a measuring block is in contact with the measured channel steel web and there is a gap between the first measuring plane first side wall of the first measuring block and the first measuring plane second side wall and the inner side of the channel steel flange, then The specific height and internal width of the measured channel steel is greater than the upper limit;

Step 2, make the second measurement plane parallel to the channel steel web, and move the second measurement block to the measured channel steel web, when the height positioning block on the second measurement plane is aligned with the measured channel steel The web is in contact and there is a gap between the first side wall of the second measurement plane of the second measurement block and the second side wall of the second measurement plane and the inner side of the channel steel flange to be measured, or the height on the second measurement plane When the positioning block is in contact with the web of the measured channel steel and the first side wall of the second measurement plane of the second measurement block and the second side wall of the second measurement plane are in close contact with the inner side of the flange of the measured channel steel, the measured channel steel The specific height inner width is within the lower limit range; when there is a gap between the height positioning block on the second measurement plane and the channel steel web to be measured and the first side wall of the second measurement plane and the second side wall of the second measurement plane are in contact with the When the inner side of the flange of the channel steel is in close contact, the inner width of the measured channel steel at a specific height is less than the lower limit.

To sum up, it can be seen that when measuring the internal width measuring tool of the specific height of the channel steel of the forklift mast provided by the present invention, it is only necessary to make the first measurement plane and the second measurement plane parallel to the web of the channel steel of the mast, so that the measuring block is perpendicular to the On the inner side of the web and flange of the measured channel steel, the measuring tool can be moved vertically to measure whether the inner width of the door frame channel steel is qualified at a specific height. The measurement method is simple and fast, which reduces the measurement time and measurement error, thereby improving Improve the measurement accuracy and production efficiency.

Description of drawings

Fig. 1 is a schematic structural diagram of a tool for measuring the internal width of a forklift mast channel steel at a specific height in a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of the measuring tool for measuring the internal width of the specific height of the channel steel of the forklift mast according to the preferred embodiment of the present invention when measuring whether the internal width of the specific height of the channel steel exceeds the upper limit.

Fig. 3 is a schematic diagram of a forklift mast channel steel inner width measuring tool at a specific height in a preferred embodiment of the present invention when measuring whether the inner width of the channel steel at a specific height exceeds the lower limit.

In the figure: 1 - measuring tool; 2 - first measuring plane; 3 - second measuring plane; 4 - first side wall of second measuring plane; 5 - second side wall of second measuring plane; 6 - first measuring plane 7-the second side wall of the first measurement plane; 8-the first height positioning block; 9-the second height positioning block; 10-the third height positioning block; 11-the fourth height positioning block.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, Fig. 2 and Fig. 3, the forklift gantry channel steel specific height inner width measuring tool 1 provided by the preferred embodiment of the present invention includes a first measuring block and a second measuring block, and the first measuring block is provided with The first measurement plane 2, the two side walls corresponding to the two ends of the first measurement plane 2 are the first measurement plane first side wall 6 and the first measurement plane second side wall 7 respectively, and a height positioning device is installed on the first measurement block Block, the length of the first measurement plane 2 is the upper limit value of the inner width of the channel steel of the forklift mast frame at a specific height, and the first measurement block is used to measure the upper limit value of the inner width of the channel steel of the forklift mast frame at a specific height; in the second measurement block There is a second measurement plane 3 on the top, and the two side walls corresponding to the two ends of the second measurement plane 3 are respectively the first side wall 4 of the second measurement plane and the second side wall 5 of the second measurement plane. There is a height positioning block, the length of the second measurement plane 3 is the lower limit value of the inner width of the channel steel of the forklift mast frame at a specific height, and the second measuring block is used to measure the lower limit value of the inner width of the channel steel of the forklift mast frame at a specific height.

It should be noted that the upper limit of the inner width at a specific height of the channel steel refers to the sum of the standard value and the upper limit of the dimensional tolerance, and the lower limit of the inner width at a specific height of the channel steel refers to the difference between the standard value and the lower limit of the dimensional tolerance; Specifically, the specific measurement height of the inner width of the channel steel is 10mm above the web, the standard value of the inner width of the specific height is 115.5mm, and the tolerance is ±0.5mm, then the length of the first measurement plane 2 is 115.5+0.5=116mm, The length of the second measurement plane 3 is 115.5-0.5=115mm. "Within the upper limit" below means less than or equal to the upper limit, "within the lower limit" means greater than or equal to the lower limit, "over the upper limit" means greater than the upper limit, "over the lower limit" means is less than the lower limit.

In a word, when the present invention measures the internal width of the channel steel of the forklift mast at a specific height, the measuring tool 1 of the present invention is perpendicular to the web and flange of the channel steel to be measured at the same time, and firstly the first measurement plane 2 is parallel to the channel steel web plate, so that the first measuring block moves towards the channel steel web to be measured. When the height positioning block on the first measurement plane 2 does not contact the channel steel web, there is a gap, or the height positioning block is in contact with the channel steel web and the measuring block When the two side walls 6 and 7 of the channel steel are in close contact with the inner side of the channel steel flange, it means that the specific height inner width of the measured channel steel is within the upper limit range. If the height positioning block on the first measuring block is in contact with the channel steel web and the two There is a gap between the side walls 6, 7 and the inner side of the channel steel flange, indicating that the inner width of the measured channel steel exceeds the upper limit; then the second measurement plane 3 is parallel to the channel steel web, so that the second measurement block faces the measured The channel steel web moves, when the height positioning block on the second measurement plane 3 is in contact with the channel steel web and there is a gap between the two side walls 4, 5 and the inner side of the channel steel flange, or the height positioning block is in contact with the channel steel web And when the two side walls 4, 5 of the second measuring block are in close contact with the inner side of the channel steel flange, it means that the inner width of the specific height of the measured channel steel is within the lower limit range, if the height positioning block on the second measuring block is in line with the measured When there is a gap in the web of the channel steel and the two side walls 4 and 5 are in close contact with the inner side of the flange of the channel steel, it means that the inner width of the measured channel steel exceeds the lower limit at a specific height. The invention realizes the fast determination of whether the inner width of the channel steel of the forklift mast frame is qualified at a specific height, thereby reducing the measurement time, reducing the measurement error, and improving the measurement accuracy and efficiency.

In the present invention, the first measuring block and the second measuring block are integrated, that is, the first measuring plane 2 and the second measuring plane 3 are all on the measuring tool 1, which can make the structure of the present invention relatively simple and facilitate manufacturing . Of course, the first measurement block and the second measurement block may also be of a split structure, that is, the first measurement plane 2 and the second measurement plane 3 may also be separately arranged on two independent measurement blocks.

For the convenience of operation, the first measuring block and the second measuring block of the present invention have an integral structure. In the present invention, after measuring whether the inner width of the specific height of the channel steel exceeds the upper limit, the measurement tool 1 is rotated 180 degrees, and another measuring plane is vertically contacted with the flange and the web of the channel steel to be measured, so as to measure the inner side of the channel steel flange Whether the upper limit is exceeded.

In order to facilitate precise machining, improve dimensional accuracy, and further improve measurement accuracy, the first measurement plane 2 and the second measurement plane 3 of the present invention are preferably parallel to each other. Alternatively, the measurement tool 1 of the present invention can also take other shapes, as long as it has a corresponding measurement plane, side wall and height positioning block to realize measurement. The angles formed by the first side wall 6 of the first measurement plane and the second side wall 7 of the first measurement plane and the first measurement plane 2 are less than or equal to 90°, and the first side wall 4 of the second measurement plane and the second side wall of the second measurement plane The included angles formed by the two side walls 5 and the second measurement plane 3 respectively are less than or equal to 90°, preferably, the aforementioned two angles are both equal to 90°.

As shown in FIG. 1 , the first measuring block and the second measuring block of the measuring tool 1 are all quadrilateral structural blocks, preferably, the measuring tool including the first measuring block and the second measuring block with an integrated structure is a quadrilateral structural block. The measuring tool of this shape is easy to carry, convenient for the operator to measure. The two long sides of the quadrilateral structural block are parallel to the web, and the first measurement plane and the second measurement plane are two parallel long sides on the quadrilateral structural block.

In order to ensure that the measurement is accurate, as shown in Fig. 1, Fig. 2 and Fig. 3, the present invention is provided with two height positioning blocks on the first measuring block, which are respectively the first height positioning block 8 and the second height positioning block 9, the first height positioning block 9, and the second height positioning block. The first height positioning block 8 and the second height positioning block 9 have the same structure and are arranged parallel to each other; that is, the first height positioning block 8 and the second height positioning block 9 are on the same horizontal line. In the present invention, two height positioning blocks are installed on the second measuring block, which are respectively the third height positioning block 10 and the fourth height positioning block 11. The third height positioning block 10 and the fourth height positioning block 11 have the same structure and are parallel to each other. Setting; that is, the third height positioning block 10 and the fourth height positioning block 11 are on the same horizontal line. Preferably, the distance between the first height positioning block 8 and the second height positioning block 9 is the same as the distance between the third height positioning block 10 and the fourth height positioning block 11 . Further preferably, the distance between the outside of the first height positioning block 8 and the second height positioning block 9 of the present invention and the adjacent side wall is greater than the inner arc radius of the measured channel steel, as shown in Figure 1, that is, the first height positioning The distance between the block 8 and the first side wall 6 of the first measurement plane is greater than the inner arc radius of the measured channel steel, and the distance between the second height positioning block 9 and the second side wall 7 of the first measurement plane is greater than that of the measured channel steel. Measure the radius of the inner arc of the channel steel, so that the bottom of the height positioning block can be kept parallel to the web of the channel steel. Certainly the distance between the outside of the third height positioning block 10 and the fourth height positioning block 11 of the present invention and the adjacent side wall is greater than the inner arc radius of the measured channel steel, as shown in Figure 1, that is, the third height positioning block 10 and the adjacent side wall The distance between the first side wall 4 of the second measurement plane is greater than the inner arc radius of the measured channel steel, and the distance between the fourth height positioning block 11 and the second side wall 5 of the second measurement plane is greater than the measured channel steel The radius of the inner arc is convenient for keeping the bottom of each height positioning block parallel to the channel steel web. The first height positioning block 8, the second height positioning block 9, the third height positioning block 10 and the fourth height positioning block 11 have the same height, which is the specific height required by the measured forklift door frame channel steel inner width. In the present invention, the first height positioning block 8 and the second height positioning block 9 are arranged vertically to the first measurement plane, and the third height positioning block 10 and the fourth height positioning block 11 are vertically arranged to the second measurement plane. The free surface of the first height positioning block 8 and the second height positioning block 9 (the face opposite to the connecting surface connected with the first measurement plane) is parallel to the first measurement plane 2, and the third height positioning block 10 and the fourth height positioning The free surface of the block 11 (the surface opposite to the connection surface connected to the first measurement plane) is parallel to the second measurement plane 3, which facilitates the determination of the first measurement plane and the second measurement plane when the height positioning block is in contact with the web Is it parallel to the web.

In order to further optimize the above-mentioned technical scheme, the thickness of the first measuring block and the second measuring block of the measuring tool 1 is 5-15 mm, preferably the thickness of the measuring tool comprising the first measuring block and the second measuring block of an integrated structure is 5-15 mm. 15mm. In this way, it can be ensured that the measurement tool 1 is placed stably during measurement, and the accuracy of measurement can be improved.

In order to facilitate the movement of the first measurement block to the measured channel steel web, the first measurement plane 2 is controlled to be parallel to the channel steel web, and when the second measurement block moves to the measured channel steel web, the second measurement plane 3 is controlled to be parallel For the channel steel web, the measuring tool also includes: a vertical scale whose bottom surface is a horizontal plane, and the horizontal plane is parallel to the channel steel web of the forklift mast; the first measuring block and the second measuring block move up and down along the length direction of the vertical scale It is set on the vertical scale, and the first measurement plane and the second measurement plane are parallel to the horizontal plane. When measuring, the top surface is in contact with the channel steel web of the forklift mast, and the first or second measuring block moves up and down on the vertical scale along the length direction of the vertical scale, which can ensure that the first measuring plane or The second measurement plane is parallel to the channel web. When the first measuring block and the second measuring block are integrated, since the measurement of the first measuring block and the second measuring block can be realized by rotating the measuring tool 180 degrees, correspondingly, the top surface and the bottom surface of the vertical scale are both level.

The present invention also provides a kind of measuring method, and it adopts above-mentioned measuring tool, and concrete steps are as follows:

Step 1, the measuring tool 1 of the present invention is perpendicular to the web and flange of the measured channel steel at the same time, the first measurement plane 2 is parallel to the channel steel web, and the first measuring block is moved to the measured channel steel web , when the two height positioning blocks 8, 9 on the first measurement plane 2 are not in contact with the measured channel steel web, there is a gap, or the height positioning blocks 8, 9 on the first measurement plane 2 and the measured channel steel web When the two side walls 6 and 7 of the first measuring block are in close contact with the inner side of the flange of the measured channel steel, that is, the inner width of the specific height of the measured channel steel is within the upper limit; when the height positioning block on the first measuring block 8, 9 are in contact with the web of the channel steel to be tested and there is a gap between the two side walls 6, 7 of the first measuring block and the inner side of the flange of the channel steel to be tested, that is, the inner width of the channel steel at a specific height exceeds the upper limit;

Step 2. Make the second measurement plane 3 parallel to the channel steel web, and move the second measurement block to the measured channel steel web. When the two height positioning blocks 10, 11 on the second measurement plane 3 are aligned with the measured groove The steel web is in contact and there is a gap between the two side walls 4, 5 of the second measuring block and the inner side of the channel steel flange under test, or the height positioning blocks 10, 11 on the second measuring plane 3 are in contact with the channel steel web under test And when the two sidewalls 4,5 of the second measuring block are in close contact with the inner side of the measured channel steel flange, the specific height inner width of the measured channel steel is within the lower limit; when the height positioning block 10 on the second measuring block When there is a gap between 11 and the web of the channel steel to be tested and the two side walls 4, 5 are in close contact with the inner side of the flange of the channel steel to be tested, that is, the inner width of the specific height of the channel steel to be tested exceeds the lower limit.

The present invention can exist gaps when the two height positioning blocks 8,9 on the first measuring plane 2 are not in contact with the measured channel steel web, or the two height positioning blocks 8,9 on the first measuring plane 2 are not in contact with the measured channel steel web. When the channel steel web is in contact and the two side walls 6, 7 of the first measuring block are in close contact with the inner side of the channel steel flange to be measured, at the same time when the two height positioning blocks 10, 11 on the second measuring plane 3 are in close contact with the measured The web of the channel steel is in contact and there is a gap between the two side walls 4, 5 of the second measuring block and the inner side of the channel steel flange under test, or the two height positioning blocks 10, 11 on the second measuring plane 3 and the channel steel under test When the web is in contact and the two side walls 4 and 5 of the second measuring block are in close contact with the inner side of the flange of the channel steel, the specific height and inner width of the measured channel steel meet the requirements, and the portal channel steel is judged to be a qualified product; if The two height positioning blocks 8, 9 on the first measuring block are in contact with the web of the channel steel under test and there is a gap between the two side walls 6, 7 of the first measuring block and the inside of the flange of the channel steel under test, indicating that the channel under test If the inner width of the specific height of the steel exceeds the upper limit, it is determined that the channel steel product of the portal frame is a substandard product; When the two side walls 4 and 5 of the gantry are in close contact with the inner side of the flange of the channel steel under test, it means that the inner width of the specific height of the channel steel under test exceeds the lower limit, and it is determined that the channel steel product of the portal frame is a substandard product.

To sum up, it can be seen that when measuring the internal width measuring tool for a specific height of the channel steel of the forklift mast provided by the present invention, only the first measuring plane 2 and the second measuring plane 3 need to be parallel to the web of the channel steel of the mast, so that the measuring block 1 At the same time, it is perpendicular to the inner side of the web and flange of the measured channel steel, and the measuring tool can be moved vertically to measure whether the inner width of the gantry channel steel at a specific height is qualified. The measurement method is simple and fast, which reduces the measurement time and measurement error. , thus improving the measurement accuracy and production efficiency.

The dimensional accuracy of the measuring tool for the inner width of the forklift mast channel steel at a specific height is not easily deformed, easy to carry, and is suitable for on-line and off-line measurement; and it does not need to use other high-precision measuring tools in the measurement, and is completely suitable for industrial continuous Production needs.

It can be known from common technical knowledge that the present invention can be realized through other embodiments without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are embraced by the present invention.

Claims (10)

1. a forklift door frame channel-section steel certain height inner width survey tool, it is characterised in that include that the first survey mass and second is surveyed Gauge block:

Described first survey mass is provided with the first measurement plane, measures two side corresponding to plane two ends with described first respectively It is that the first measurement plane the first side wall and first measures plane the second sidewall, measures in plane equipped with altitude location described first Block, described first measures the higher limit of a length of forklift door frame channel-section steel certain height inner width of plane, and described first survey mass is used In the higher limit measuring forklift door frame channel-section steel certain height inner width；

Described second survey mass is provided with the second measurement plane, measures two side corresponding to plane two ends with described second respectively It is that the second measurement plane the first side wall and second measures plane the second sidewall, measures in plane equipped with altitude location described second Block, described second measures the lower limit of a length of forklift door frame channel-section steel certain height inner width of plane, and described second survey mass is used In the lower limit measuring forklift door frame channel-section steel certain height inner width.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 1, it is characterised in that:

Described first survey mass and described second survey mass are structure as a whole.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 1 and 2, it is characterised in that:

It is arranged in parallel that described first measurement plane and described second measures plane, and described first measures plane the first side wall Measuring plane the second sidewall angle respectively with described first measurement plane formation with first and be equal to 90 °, described second measurement is flat Face the first side wall and second is measured plane the second sidewall and is measured the angle of plane formation respectively with described second equal to 90 °.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 1 and 2, it is characterised in that:

Described first survey mass and described second survey mass are quadrilateral structure block.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 1 and 2, it is characterised in that:

Equipped with two described altitude location blocks on described first survey mass, the respectively first altitude location block and second the most fixed Position block, described first altitude location block is identical with the structure of described second altitude location block, arranged in parallel, and described first is high The height of degree locating piece and the second altitude location block is all identical with forklift door frame channel-section steel certain height；

Equipped with two described altitude location blocks on described second survey mass, respectively third height locating piece and the 4th the most fixed Position block, described third height locating piece is identical with the structure of described 4th altitude location block, arranged in parallel, described three-hypers The height of degree locating piece and the 4th altitude location block is all identical with forklift door frame channel-section steel certain height.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 5, it is characterised in that:

The spacing of described first altitude location block and described second altitude location block and described third height locating piece and described the The spacing of four altitude location blocks is identical.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 6, it is characterised in that:

The outside of described first altitude location block and described second altitude location block and the distance of adjacent wall are more than tested channel-section steel Inner arc radius；

The outside of described third height locating piece and described 4th altitude location block and the distance of adjacent wall are more than tested channel-section steel Inner arc radius.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 1 and 2, it is characterised in that:

The thickness of described first survey mass and the second survey mass is 5～15mm.

Forklift door frame channel-section steel certain height inner width survey tool the most according to claim 1 and 2, it is characterised in that also wrap Include:

Vertical scale, the bottom surface of described vertical scale is horizontal plane, and described horizontal plane is parallel with described forklift door frame channel-section steel web；

Described first survey mass and described second survey mass are arranged on institute up or down along the length direction of described vertical scale State on vertical scale, and described first measures plane and described second measurement plane and described plane-parallel.

10. a forklift door frame channel-section steel certain height inner width measuring method, it is characterised in that including:

Step one, by the survey tool according to any one of claim 1～9 both perpendicular to the web of tested channel-section steel, the edge of a wing, Measure plane by described first and be parallel to channel-section steel web, make described first survey mass move to tested channel-section steel web, when described the Altitude location block in one measurement plane does not contact with tested channel-section steel web and there is space, or described first measures in plane Altitude location block contacts with tested channel-section steel web and the first measurement plane the first side wall and first of described first survey mass is measured When being in close contact inside plane the second sidewall and the channel-section steel edge of a wing, the certain height inner width of the most tested channel-section steel is in upper range；When Altitude location block on described first survey mass contacts with tested channel-section steel web and the first measurement plane first of the first survey mass There is gap between measuring inside plane the second sidewall and the channel-section steel edge of a wing in sidewall and first, roomy in the certain height of the most tested channel-section steel In higher limit；

Step 2, by described second measure plane be parallel to channel-section steel web, make described second survey mass move to tested channel-section steel web Dynamic, when the altitude location block in described second measurement plane contacts and the second survey of described second survey mass with tested channel-section steel web Gap, or described second is there is in amount plane the first side wall and second between measuring inside plane the second sidewall and the tested channel-section steel edge of a wing Measure the altitude location block in plane contact with tested channel-section steel web and the second survey mass second measure plane the first side wall and Second measures when being in close contact inside plane the second sidewall and the tested channel-section steel edge of a wing, the certain height inner width of the most tested channel-section steel under In the range of limit；Plane is measured when the described second altitude location block measured in plane exists gap and second with tested channel-section steel web The first side wall and second is measured when being in close contact inside plane the second sidewall and the channel-section steel edge of a wing, in the certain height of the most tested channel-section steel Wide less than lower limit.