CN102720737B - Lifting adjustment device - Google Patents

Abstract

A lifting adjusting device comprises an outer ring piece, an inner ring piece which can be arranged in the outer ring piece in a sliding mode, a plurality of positioning pieces which are arranged on the inner ring piece, and a limiting piece which is connected with the inner ring piece, wherein the limiting piece can move towards the outer ring piece relative to a pressing portion. The inner ring piece is provided with a pressing part which protrudes out of the outer ring piece. The limiting piece is connected with the pressing portion of the inner ring piece and can move between a limiting position and a regulating position relative to the inner ring piece, the limiting piece abuts against the outer ring piece in the limiting position, and a gap is formed between the limiting piece and the outer ring piece at intervals in the regulating position. When the limiting part is used for limiting the position, the limiting part can move relative to the pressing part and further abut against the outer ring part, the inner ring part cannot slide, a gap is not easily generated between the inner ring part and the positioning part due to external force, and the clamping force of the positioning part is stable.

Description

Lifting adjustment device

technical field

The invention relates to an adjustment device, in particular to a lifting adjustment device.

Background technique

Referring to Fig. 1, it is the U.S. Patent No. 3335469 "personal safety device" invention patent case, the safety device 1 disclosed in the case includes a main body 11, an oblique cone 12 fixed at one end of the main body 11, a penetrating cone extending through the The sliding part 13 in the inclined cone 12, and several steel balls 14 arranged between the sliding part 13 and the inclined cone 12. When the main body 11 is pulled downward relative to the slider 13, the steel ball 14 is pressed by the oblique cone 12 and moves upward and inward, and squeezes a rope 15 inside the slider 13, so that the rope 15 Clamped and fixed by the steel ball 14, the safety device 1 cannot move relative to the rope 15 at this time, and when the fixed state is to be released, press the slider 13 to relatively move the steel ball 14 downward, so that all The wide area between the steel ball 14 and the oblique cone 12, so the steel ball 14 no longer clamps the rope 15, and now the safety device 1 can slide on the rope 15 to adjust the height position.

Referring to Fig. 2, it is Japanese Patent Laying-Open No. 10-184814 "sliding clip" patent case, and this sliding clip 2 comprises a shell 21, an inner sleeve 22 that penetrates in the outer shell 21, and a screw is located in the inner sleeve 22 The upper cover body 23 and a plurality of spheres 24 arranged between the outer shell 21 and the inner sleeve 22 , the outer shell 21 has a tapered surface 211 . Comparable to the technology of the aforementioned existing U.S. patent, by pressing the cover body 23 to move the outer casing 21 and the inner sleeve 22 relatively, the ball 24 moves on the tapered surface 211 to generate a force to squeeze a shaft 25 , whereby the position of the sliding clip 2 on the shaft 25 can be fixed or released.

However, in the above two cases, neither the sliding part 13 nor the inner sleeve 22 is fixed, so it is possible to press the sliding part 13 or the inner sleeve 22 to slide due to accidental touch, so that the steel ball 14 or the ball 24 loses the force of clamping , resulting in a safety problem; in addition, as illustrated in FIG. 2, when the sliding clip 2 is subjected to a deflected force, the position of the sphere 24 on the tapered surface 211 is inconsistent, so the sphere 24 and the There will be gaps between the tapered surfaces 211 , so that the clamping force is not uniform, and cannot be stably fixed on the shaft 25 .

Contents of the invention

The object of the present invention is to provide a lifting adjustment device with stable clamping force and improved safety.

The lifting adjustment device of the present invention comprises an outer ring, an inner ring slidably arranged in the outer ring, a plurality of positioning parts arranged in the inner ring, and a connecting ring connected with the inner ring. limiter.

The outer ring includes an outer surrounding wall surrounding an accommodating space, the outer surrounding wall has a top end, and a bottom end opposite to the top end, the inner surface of the outer surrounding wall has a Tapered first cone.

The inner ring can be slidably arranged in the accommodating space of the outer ring, and the inner ring includes an inner surrounding wall surrounding a penetrating space, and a plurality of supports against the inner surrounding wall and the outer ring. The elastic body, the inner surrounding wall has a pressing portion protruding from the outer ring, and a plurality of positioning holes located in the outer ring.

The positioning pieces are respectively arranged in the positioning holes of the inner ring, and abut against the first taper portion of the outer ring.

The limiting part is connected with the pressing part of the inner ring, the limiting part can move toward the outer ring relative to the pressing part, and the limiting part can move relative to the pressing part and then abut against the outer ring The limit position of the outer ring member moves between a control position spaced from the outer ring member.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

Preferably, the aforementioned lifting adjustment device, wherein the lifting adjustment device further includes a fixed ring sleeved on the top of the outer ring member and the limiting member, the fixing ring has an inner convex wall, and the limiting member is In the regulating position, the inner convex wall of the fixing ring abuts against the limiting member.

Preferably, in the aforementioned lifting adjustment device, the inner surface of the outer surrounding wall of the outer ring further has a second tapered portion tapered from the bottom end to the top end and spaced from the first tapered portion, and the The positioning holes of the inner ring are respectively corresponding to the first taper portion and the second taper portion.

Preferably, in the aforementioned lifting adjustment device, the outer ring further includes a sealing wall fixed at the bottom end of the outer surrounding wall, and the elastic body of the inner ring is supported against the inner surrounding wall and the sealing wall. retaining wall.

Preferably, the aforementioned lifting adjustment device, wherein the lifting adjustment device further includes a tightening ring sleeved on the bottom end of the outer ring and spaced from the fixed ring.

Preferably, in the aforementioned lifting adjustment device, the outer surrounding wall of the outer ring has an external thread, and the fixing ring and the tightening ring each have an internal thread so as to be screwed to the outer surrounding wall of the outer ring. wall.

Preferably, in the aforementioned lifting adjustment device, wherein the pressing portion of the inner surrounding wall of the inner ring has an external thread, the limiting member has an internal thread so as to be screwed to the pressing portion of the inner surrounding wall, and It moves between the limiting position and the regulating position by way of screw lock.

Preferably, in the aforementioned lifting adjustment device, the elastic body of the inner ring is a compression spring.

The beneficial effect of the present invention is that: when the limiting member is at the limiting position, the limiting member abuts against the outer ring so that the inner ring cannot slide, so the inner ring will not cause the The positioning part is loosened, and the space between the inner ring part and the positioning part is not easy to be generated due to external force, so that the clamping force of the positioning part is stable.

Description of drawings

Fig. 1 is a sectional view illustrating the US Patent No. 3,335,469 "personal safety device" invention patent case;

Fig. 2 is a sectional view illustrating the Japanese Patent Laid-Open No. 10-184814 "sliding clip" patent case;

Fig. 3 is an exploded view illustrating a preferred embodiment of the lifting adjustment device of the present invention;

Fig. 4 is a cross-sectional view illustrating the state of a position-limiting member in a regulating position after the preferred embodiment is combined;

Fig. 5 is a cross-sectional view illustrating the state in which the limiting member is pressed in the preferred embodiment;

Fig. 6 is a sectional view illustrating the state of the limiting member in a limiting position in the preferred embodiment;

Fig. 7 is a schematic diagram illustrating the use of the preferred embodiment combined with a board.

Detailed ways

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

Referring to Fig. 3 and Fig. 4, it is a preferred embodiment of the lifting adjustment device 3 of the present invention, comprising an outer ring 4, an inner ring 5 slidably arranged in the outer ring 4, a plurality of The positioning part 6 of the inner ring part 5, a stopper 7 connected with the inner ring part 5, a fixed ring 81 set on the outer ring part 4 and the stopper part 7, and a set on the The outer ring 4 and a tight ring 82 spaced apart from the fixed ring 81 .

The outer ring 4 includes an outer surrounding wall 41 surrounding an accommodating space 415 , and a sealing wall 42 fixed on the outer surrounding wall 41 . The outer surrounding wall 41 has a top end 411, and a bottom end 412 opposite to the top end 411, the inner surface of the outer surrounding wall 41 has a first tapered portion 413 tapering from the bottom end 412 to the top end 411, and A second tapered portion 414 tapers from the bottom end 412 toward the top end 411 and is spaced from the first tapered portion 413 . The blocking wall 42 is fixed on the bottom end 412 of the outer surrounding wall 41 .

The inner ring 5 is slidably disposed in the accommodation space 415 of the outer ring 4, the inner ring 5 includes an inner surrounding wall 51 surrounding a penetrating space 511, and a plurality of inner surrounding walls 51 supporting the inner ring. The elastic body 52 of the wall 51 and the sealing wall 42 of the outer ring 4 . The inner surrounding wall 51 has a pressing portion 512 protruding from the outer ring 4 , and a plurality of positioning holes 513 in the outer ring 4 . The positioning holes 513 respectively correspond to the first taper portion 413 and the second taper portion 414 of the outer ring 4 . In this embodiment, the elastic body 52 of the inner ring 5 is a compression spring, and the insertion space 511 can be used for a rod body 91 to pass through, but it is not limited thereto. Rope threading.

The positioning members 6 are respectively disposed in the positioning holes 513 of the inner ring member 5 and abut against the first taper portion 413 and the second taper portion 414 of the outer ring member 4 . In this embodiment, the positioning member 6 is a sphere.

The limiting member 7 is connected to the pressing portion 512 of the inner ring member 5 and can move relative to the inner ring member 5 between a limiting position and a regulating position. As shown in Figure 4, at the control position, the spacer 7 and the outer ring 4 form a gap G, and as shown in Figure 6, at the limit position, the spacer 7 and the outer ring 4 The outer ring 4 abuts against each other.

The fixed ring 81 is sheathed on the top 411 of the outer ring member 4, and has an inner convex wall 811. When the limiting member 7 is at the regulating position, the inner convex wall 811 of the fixing ring 81 and the limiting member 7 against each other. The tight ring 82 is sleeved on the bottom end 412 of the outer ring member 4 and spaced from the fixing ring 81 .

In particular, in this embodiment, the outer surrounding wall 41 of the outer ring 4 and the pressing portion 512 of the inner ring 5 each have an external thread 416, 514, and the fixing ring 81 and the tightening ring 82 respectively It has an internal thread 812, 821, so as to be screwed on the outer surrounding wall 41 of the outer ring 4, and the stopper 7 also has an internal thread 71, so as to be screwed to the pressing of the inner surrounding wall 51 part 512, and move between the restricting position and the regulating position by means of screw lock, but the combination of the above components is not limited to the way of screw lock.

Referring to Fig. 4, when the limiting member 7 is in the regulating position, the elastic body 52 of the inner ring member 5 pushes the inner surrounding wall 51 toward the top 411 of the outer ring member 4, so that the positioning member 6 The first tapered portion 413 and the second tapered portion 414 respectively on the outer ring 4 move upward, and the shapes of the first tapered portion 413 and the second tapered portion 414 are respectively tapered from the bottom end to the top end. , the positioning member 6 will be pushed towards the direction of the rod body 91 to press the rod body 91 , and the lifting adjustment device 3 can be fixed on the rod body 91 through the force of the positioning member 6 pressing the rod body 91 .

Referring to FIG. 5 , when the lifting adjustment device 3 is to slide downward on the rod body 91 , the stopper 7 can be pressed and the inner ring 5 is moved toward the bottom end 412 of the outer ring 4 . Move, the elastic body 52 is compressed and accumulates an elastic recovery force, at this time, the positioning member 6 moves to the wider area in the first taper portion 413 and the second taper portion 414, so the positioning member 6 No longer extrude the body of rod 91, so that the power of clamping the body of rod 91 disappears, so that the lifting adjustment device 3 can be adjusted to slide up and down on the body of rod 91, and then the stopper 7 is released, and the elastic body 52 releases the elastic recovery force and pushes the inner ring 5 to the state shown in FIG. 4 , and the positioning member 6 can be used again to fix the lifting adjustment device 3 on the rod body 91 .

Referring to Fig. 6, after determining the position of the lifting adjustment device 3, use the internal thread 71 of the limiting member 7 to rotate relative to the external thread 514 of the pressing part 512, so that the limiting member 7 moves to the limiting position, at this time The stopper 7 abuts against the top 411 of the outer ring 4, and since the stopper 7 abuts against the outer ring 4, the inner ring 5 cannot reach the bottom 412 of the outer ring 4. Therefore, it is impossible to release the force of the positioning member 6 clamping the rod body 91, so that the lifting adjustment device 3 remains fixed on the rod body 91, so that it will not be pressed to the limit member 7 or the inside due to accidental touch. The ring 5 is used to loosen the lifting adjustment device 3 from the rod body 91 . Simultaneously, when the limiting member 7 is at the limiting position, the limiting member 7 abuts against the top end 411 of the outer ring member 4, and the configuration is tight and the rigidity is high, so that the positioning member 6 is not easy to be opposite to the first cone. The portion 413 and the second taper portion 414 create a gap, so that the positioning member 6 maintains a good force for clamping the rod body 91 .

And this stopper 7 also utilizes the internal thread 71 to rotate upwards relative to the external thread 514 of the pressing part 512 to return to the control position as shown in Figure 4, and the stopper 7 can be pressed again to adjust the height of the lifting adjustment device 3. position, in particular, when the limiting member 7 is to be rotated back to the regulating position, the inner convex wall 811 on the fixing ring 81 will abut against the limiting member 7, more specifically, the inner convex The wall 811 abuts against the limiter 7 up and down. The position-limiting part 7 will not be detached from the inner ring part 5, but remains connected to the inner ring part 5.

Referring to Fig. 4 and Fig. 7, in use, at least one lifting adjustment device 3 can be inserted on a plurality of rod bodies 91 respectively, and the position of the lifting adjustment device 3 can be adjusted according to the above-mentioned operation mode, and the stopper 7 can be used to Move to the limit position to locate the lifting adjustment device 3, and then place a plate 92 between the lifting adjustment device 3, the plate 92 is between the fixed ring 81 and the tightening ring 82, so that using The board body 92 displays and stores articles. In this embodiment, the outer ring 4 has a first taper 413 and a second taper 414. In addition to adding a plurality of positioning parts 6 to strengthen the clamping force, the positioning parts 6 can clamp the rod more evenly. 91, even if the plate body 92 is longer or the article is heavier, the lifting adjustment device 3 is subjected to uneven force, and the outer ring member 4 is squeezed through the fixing ring 81 and the tightening ring 82, thereby reducing the The gap caused by the unbalanced force between the inner ring 5 and the rod body 91 strengthens the force of the positioning member 6 to press the rod body 91, so that the clamping force of the positioning member 6 is stable and not easy to loosen.

Therefore, in this embodiment, the inner ring member 5 is used to slide in the outer ring member 4, so that the positioning member 6 is clamped or kept away from the rod body 91, so that the lifting adjustment device 3 can slide on the rod body 91, Adjust the position, and move the limiter 7 to the limit position to restrict the inner ring 5 from sliding, so that the limiter 7 and the inner ring 5 will not be pressed due to accidental contact, and the clamping force will be released , and when the limiting member 7 is at the limiting position, the overall configuration of the lifting adjustment device 3 is compact, the rigidity is high, and the force for clamping the rod body 91 can be maintained.

To sum up, the lifting adjustment device 3 of the present invention can prevent the inner ring 5 from sliding when the limiting member 7 is in the restricted position, so that the limiting member 7 and the inner ring 5 cannot be pressed and moved , reduce the sliding between the positioning member 6 and the first taper 413, the second taper 414 to create a gap, keep the state of the positioning member 6 pressing the rod 91, so the safety is high, and the use of the The positioning member 6 cooperates with the first taper portion 413 and the second taper portion 414 to stabilize the clamping force.

Claims (8)

1. a lift regulator, comprise an outer ring, an interior ring, and multiple locating pieces, this outer ring comprises an outer surrounding wall around a containing space, this outer surrounding wall has a top, an and bottom in contrast to this top, the internal surface of this outer surrounding wall have one by this bottom the first tapering towards top convergent, this interior ring can be located in the containing space of this outer ring slidably, this interior ring comprises that one around an interior surrounding wall that places space, and multiple elastomers that support to arrive in this interior surrounding wall and outer ring, this interior surrounding wall has a press part that protrudes out this outer ring, and multiple positioning holes that are positioned at this outer ring, described locating piece is arranged at respectively in the positioning hole of this interior ring, and lean with the first tapering of this outer ring, it is characterized in that:

This lift regulator also comprises a bounding means being connected with the press part of this interior ring, this bounding means can move toward this outer ring relative to this press part, and this bounding means can move relative to this press part at one and then against the restriction site of this outer ring, and move between one and this outer ring regulation and control position separately.

2. lift regulator according to claim 1, it is characterized in that, this lift regulator also comprises one and is sheathed on the top of this outer ring and the retaining ring of this bounding means, this retaining ring has a convex wall, this bounding means is in the time of this regulation and control position, and convex wall and this bounding means of this retaining ring lean.

3. lift regulator according to claim 2, it is characterized in that, the internal surface of the outer surrounding wall of this outer ring also have one by this bottom towards top convergent and with the second tapering separately, this first tapering, and the positioning hole of this interior ring is respectively to should the first tapering and the second tapering.

4. lift regulator according to claim 3, is characterized in that, this outer ring also comprises a block wall that is fixedly arranged on the bottom of this outer surrounding wall, and the elastomer of this interior ring is to support to arrive in this interior surrounding wall and this block wall.

5. according to the arbitrary described lift regulator of claim 2 to 4, it is characterized in that, this lift regulator also comprise one be sheathed on the bottom of this outer ring and with this retaining ring packing ring separately.

6. lift regulator according to claim 5, is characterized in that, the outer surrounding wall of this outer ring has an outside thread, this retaining ring, packing ring there is respectively an internal thread and whereby screw lock in the outer surrounding wall of this outer ring.

7. lift regulator according to claim 5, it is characterized in that, the press part of the interior surrounding wall of this interior ring has an outside thread, this bounding means has an internal thread and screw lock is in the press part of this interior surrounding wall whereby, and mode by screw lock moves between this restriction site and regulation and control position.

8. lift regulator according to claim 5, is characterized in that, the elastomer of this interior ring is Compress Spring.

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