JPS5830972A - Switchgear for charging port of tank for transporting powdered and granular body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an opening/closing device for an inlet having a closed door for a tank for transporting powder or granular materials.

Closed tanks used for transporting powder and granular materials such as cement and feed are often mounted on vehicles such as trucks, as shown in Figure 1. The opening/closing operation of No. 2 must be performed while avoiding one foothold, and the work efficiency is extremely low and is still likely to be dangerous.

In order to reduce such opening/closing work, a slot opening/closing device as shown in FIG. 2 is known. Briefly, as shown in Figure (a), the door 4 has a rectangular planar shape and is rotatably connected with a pin 5 on the left and right sides of the rear end of the door 4, which moves horizontally (from left to right in the paper). A guide rod 6 is inserted through a guide frame 7 horizontally fixed to the tank 1.

At the 1111 end of the guide rod 6, there is a movable roller 8 as shown in FIG.
) are each equipped with fixed rollers 9 that support guide rods 6.

According to the opening/closing device for the input port 2 having such a door 4,
The operator inserts the door 4, which is made to be heavy and has a sealing material 10 attached to the outer periphery of the back surface to improve airtightness, using the pin 5 as a fulcrum. While lifting, move the movable roller 8
is moved until it reaches position 8a in FIG. This lifting operation is based on the fact that the water shell cannot be moved if the input port 2 is in contact with the packing material 10 of the door 4. There is a strong demand for eliminating the lifting operation of the door 4, which is not much reduced and is therefore heavy.

The present invention has been made to solve the above-mentioned problems, and aims to provide an opening/closing device for a tank for transporting powder and granular materials that eliminates the need for lifting the door and simplifies the opening/closing operation. do.

Its features include a door that moves horizontally at the powder or granule inlet, and roller guides that guide the movable rollers installed on both sides of the front end of the door. A guide frame rotatably attached to the granule transport tank,
The guide rod is provided with a removable suppressing means for suppressing and fixing the sins stored in the supplementary input slot, and a resilient support means for lifting the guide frame away from the input slot together with the door. That's what happened.

The present invention will be described in detail below based on examples thereof. Figures 3G) and 3(b) are an overall plan view and a side view of the inlet opening/closing device according to the present invention, in which reference numeral 11 is provided on the upper surface of the tank 1. arrow mark 12
The door 13 that moves in the direction of the door 13 is a U-shaped guide frame that supports the door 11 on both sides and guides its movement, the rear end of which is rotatable via a pin 14. It is attached to tank 1. Note that 10 is an airtight packing material applied to the entire circumference of the back surface of the door 11.

The door 11 mentioned above has a fourth section, which is the cross section taken along the tv-y line in Figure 3.
l1LII on its anterior side, as shown in the figure.
A movable roller 16 supported by a roller 115 is mounted so as to protrude outward from the side of the door, and is attached to the roller guide 17 of the guide frame 13.
It is on board. On the other hand, in the guide frame 13,
As shown in FIG. 5, which is a cross section taken along the -V line, a fixed roller 19 supported by a shaft 18 at the rear end is attached to the door 11.
It is mounted on a roller guide 20 provided on the side of the door 11. Note that, as shown in FIG. 6, a shallow cut 21 is formed in the front end of the roller guide 17, which is large enough to allow the movable roller 16 to fit thereinto.

The above-mentioned guide frame 13 has a U-shaped plan view to support the door 11 on both sides thereof, as shown in FIG. A removable pressing means 22 is attached around the back surface and presses the dowel material 10'' against the upper surface of the input port 2 to ensure the airtightness of the tank 1, and the pin 14 is used as a fulcrum at the side of the pressing means 22. A spring support means 23 for rotating and floating is attached.

FIG. 7 shows an example of the pressing means 22 indicated by -F, in which a claw 26 is formed at one end of a rotatable substantially dogleg-shaped lever 25 supported on the tank l via a pin 24, and the guide frame It protrudes from the front end of 13 and is arranged to engage with voice attendant tool 27. This dogleg-shaped lever 25 is biased by a swivel link 28 so as to maintain the above-mentioned engagement. Note that the other end of the lever 25 is held against the spring 28.
It functions as a handle for rotating the handle, and if a pushing surface 29 like a pedal is formed, for example, the work becomes easier.

FIG. 8 shows an example of the firing support means 23, which consists of links 30 and 31 rotatably supported by the tank 1 and the guide frame 13, respectively, and a spring 32 interposed between these links. The intersecting angle α of the two connected links 30, 31 is biased in a direction that increases. Therefore, the guide frame 13 is constantly receiving force in the direction away from the input port 2. Note that 33 is an auxiliary link for fixing the link 31 to the guide frame 13.

Since the present invention is constructed as described above, the door 11 that closes the input [12] is pressed against the packing material 10 by the pressing means 22 while being stored in the guide frame 13.

When opening the input port 2, when the operator climbs onto the tank and steps on the pressing surface 29 of the pressing means 22, the dogleg-shaped lever 25
rotates against the spring 28, the intersection angle α of the links 30 and 31 expands as shown by the imaginary line in Figure (a), and the guide frame 13 rotates around the pin 14, so that the guide The frame 13 floats and tilts together with the door 11. In addition, since the aforementioned pin 14 is located behind the rear end of the door 11, the packing material 10 at the rear end of the door work 1 also separates from the upper surface of the input port 2, and the movement of the door 11 is obstructed. be done. Never.

In this state, when the worker pushes the door 11 in the direction of the arrow 12,
The movable roller 16 comes off the notch 21 of the roller guide 17 and slides along the guide frame 13 under its own weight. When the door 11 reaches the position where the inlet 2 is fully opened, it comes into contact with a stopper (not shown) and is stopped. At this time, the movable roller 16 is located at 16a shown in FIG. 3(a) within the guide frame 13 and maintains a constant distance from the fixed roller 19, so that
is in an inclined state as if protruding on the extension line of the guide frame 13. Therefore, the operation of opening the door 11 does not require holding the door 11 and can be moved with little force, making it extremely simple to reduce the burden on the operator.

On the other hand, when closing the input port 2, the door 11 is moved backward along the guide frame 13 until its movable roller 16 reaches the notch 21. When the movable roller 16 fits into the notch 21, the door 11 is completely stored in the guide frame 13.Next,
When the front end of the guide frame 13 is pushed down and the pushing surface 29 is operated so that the claw 26 of the pushing means 22 engages with the lock/tool 27, the door 11 and the guide frame 13 are pressed tightly against the input slot 2. Tank 1 is kept airtight.

The above configuration and operation have been explained for a case where the door 11 has a rectangular plane. However, if the door 11 moves horizontally to open and close the slot 2, the guide according to the shape of the door 11 can be used. It is only necessary to form a frame, and it is not necessary to form the above-mentioned U-shape, and it goes without saying that -C, which has a different planar shape as a result of attaching a member reinforcing the guide frame 13, is also good. be. Further, there is no problem even if the above-described airtight packing material 10 is attached to the outer periphery of the upper surface of the input port 2. In addition,
The configurations of the means 2, 2 and the spring support means 23 are not limited to those described above, but may be of any structure as long as they can perform their functions.

As described above, the present invention is characterized in that the powder/grain material input process is carried out in the following manner. a guide frame rotatably attached to a tank for transporting powdered limbs; a removable pressing means for pressing and fixing the door to the input port with the door stored in the guide frame; Along with the door, we installed a 1fti rebound support means to lift the granite from the +GiJ entry slot, so the worker can open the heavy phase-closing door with a small amount of force without having to move it. .

In addition, during the closing operation, the guide rail can be held in place to hold the door in a slightly inclined state, making it easier to close the door. In addition, since the opening/closing operation is quick and the seal is tightly sealed, leakage of powder and granular material and humidification are prevented not only during transportation but also when opening/closing.

[Brief explanation of the drawing]

Figure 1 shows a tank for transporting powder and granular material mounted on a truck; tl
Figure 2 is a conventional example of the opening/closing device; Figure G) is its overall plan view, Figure Q))
(c) is a cross-sectional view along line I[-II and mm. Figure 3 is an overall view of the inlet opening/closing device according to the present invention.
3 and 5 show the arrangement of the rollers and roller guides (W-W line of ω and V-V line l,','Ir). -W line arrow view, No. 71 and 4 are examples of suppressing means, and Fig. 83 is an example of the repulsion and support means. ...tank, 2...inlet, 10...packing material, 1'1...door, 13...guide frame, 14...pin, 16...movable roller, 17,20 ... Roller guide, 19 ... Fixed roller, 21 ... Notch, 22
... Pressing means, 23 ... External support means, 25 ...
Lever, 26...claw, 27...retainer 11-tool, 28,
32...Spring, 30.31...Link

Claims (1)

[Scope of Claims] (1) In a powder transport tank having a closed door, a door that moves horizontally above the powder inlet and movable rollers attached to both sides of the front end of the door are guided. a guide frame provided with a roller guide and rotatably attached to the tank at its rearmost end; and a removable suppressor for suppressing and fixing the door to the input port while the door is housed in the guide frame. An inlet opening/closing device for a tank for transporting powder or granular material, characterized in that the device comprises: means and resilient support means for floating the guide frame away from the inlet together with the door. (Smell) The tank for transporting powder and granular material according to claim 1, wherein the door is provided with a roller guide on its side surface for guiding a fixed roller attached to the rear end of the guide frame. (3) The roller guide of the guide frame is provided with a notch into which a movable roller attached to the door is fitted and locked. The inlet opening/closing device for a tank for transporting powder or granular materials as described above. An inlet opening/closing device for a tank for transporting powder or granular material according to claim 1, characterized in that it is equipped with a square-shaped cross-section and a sliding ring that biases this lever. 5) The spring support means is characterized in that a spring is interposed between links rotatably attached to the guide frame and the tank, respectively.
An inlet opening/closing device for a tank for transporting powder and granular materials as described in 2.