A retroguard latch device

Abstract

The utility model relates to a kind of anti-reverse bolt device, including trolley (2) and bolt seat (1), the upper end of bolt seat (1) is equipped with fixed mechanism (11), the fixed mechanism (11) side is equipped with mounting mechanism (12), the trolley (2) is equipped with the bolt mechanism (21) matched with fixed mechanism (11).The fixed mechanism (11) includes bolt hole (111), the mounting mechanism (12) includes the mounting hole (13) of being equipped in bolt hole (111) side.The utility model whole simple structure, easy to produce manufacture.Bolt seat (1) visible area is larger, can reduce the probability of this device being ignored, improve the security and reliability of trolley (2) use.

Description

Technical Field

[0001] This utility model belongs to the field of handcart technology, specifically, it relates to an anti-backward latch device. Background Technology

[0002] The development of the anti-backward device for the pin of the setting rack trolley stemmed from the risk of backing up faced by the setting rack trolley in actual use and the shortcomings of existing solutions: As a widely used handling tool, the wheels of the setting rack trolley are mostly designed for bidirectional movement. In special scenarios such as slopes, it is easy to slip back when stopped midway, which may lead to safety accidents such as personal injury and damage to goods; while existing anti-backward technologies have obvious defects. For example, the brake device built into the universal caster that relies on friction is not only unable to effectively stop the trolley when it is loaded with heavy items, but also the stopping method is too simple and has no obvious characteristics, making it easy to forget. These problems have jointly driven the development of the anti-backward device for the pin of the setting rack trolley.

[0003] According to the applicant's search, a hand-operated trolley for transporting wood substitutes, disclosed on May 31, 2019, with application number CN201821101801.7, has two triangular prism-shaped guide rails on the top surface of its chassis. The rear ends of these guide rails are fixed to the top surface of the chassis with limiting blocks. The bottom surface of the sliding plate has a groove that moves with the triangular prism-shaped guide rails. A T-shaped pin passes through a first and a second insertion hole to secure the sliding plate. This invention first places the sliding plate on the two triangular prism-shaped guide rails on the top surface of the chassis, and then secures it with a T-shaped pin. When unloading, the T-shaped pin is removed, and the sliding plate can be gently pushed manually to unload the goods. Although this hand-operated trolley for transporting wood substitutes has a T-shaped pin, its parking method is not easily distinguishable and is easily forgotten; the storage of the T-shaped pin is also inconvenient. Utility Model Content

[0004] This utility model was developed to solve the aforementioned problems, and its purpose is to provide a simple and easily noticeable anti-reverse pin device. To achieve the above objective, the technical solution adopted by this utility model is as follows: An anti-backward latch device includes a trolley and a latch seat. The upper end of the latch seat is provided with a fixing mechanism, and one side of the fixing mechanism is provided with an installation mechanism. The trolley is provided with a latch mechanism that cooperates with the fixing mechanism.

[0005] The fixing mechanism includes a pin hole, and the mounting mechanism includes a mounting hole located on one side of the pin hole.

[0006] The mounting hole includes a bolt hole and a nut hole, with the nut hole located on the bolt hole.

[0007] The bolt hole and nut hole are coaxial circular holes.

[0008] The pin hole is a through hole, and the mounting hole is a stepped hole.

[0009] The mounting holes are evenly distributed around the pin holes.

[0010] The pin holder is a frustum shape.

[0011] The latching mechanism includes a latching tube and a latching pin disposed inside the latching tube. The upper end of the latching tube is provided with a latching frame, and the latching pin is attached to the latching frame.

[0012] The pin tube is clearance-fitted with the pin, and the pin is clearance-fitted with the pin hole.

[0013] The pin tube is round, the pin holder is L-shaped, and the pin is L-shaped.

[0014] The technical advantages of this utility model are as follows: This utility model includes a trolley and a pin seat. The upper end of the pin seat is provided with a fixing mechanism, and one side of the fixing mechanism is provided with an installation mechanism. The trolley is provided with a pin mechanism that cooperates with the fixing mechanism. The pin mechanism includes a pin tube and a pin disposed within the pin tube. The upper end of the pin tube is provided with a pin bracket, and the pin overlaps the pin bracket. The use of the pin and pin seat together increases the stability of the setting rack trolley when parked. The pin seat and pin mechanism are easily visible, preventing workers from forgetting them and increasing the reliability of the setting rack trolley when parked. The pin seat is fixedly installed on the ground and has multiple mounting holes, reducing the probability of the pin seat moving. The pin seat has a truncated pyramid structure, and its overall structure is not protruding, preventing collisions with the setting rack trolley and thus avoiding product damage. This utility model has a simple structure, is easy to manufacture, and can provide effective parking and locking for the setting rack trolley, increasing its safety and reliability. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following: Figure 1 This is a schematic diagram of the overall structure of the pin seat of the anti-reverse pin device of this utility model; Figure 2 This is a top view of the pin seat of an anti-reverse pin device according to this utility model; Figure 3 This is a bottom view of the pin seat of an anti-reverse pin device according to this utility model; Figure 4 This is a schematic diagram of a trolley with an anti-backward latch device according to this utility model; Figure 5 This is a partial enlarged view of part A of the anti-reverse pin device of this utility model; The diagram is marked as follows: 1. Pin holder, 11. Fixing mechanism, 111. Pin hole, 12. Mounting mechanism, 13. Mounting hole, 131. Bolt hole, 132. Nut hole, 2. Trolley, 21. Pin mechanism, 211. Pin, 212. Pin tube, 213. Pin bracket. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0017] like Figure 1 and Figure 4 As shown, an anti-backward latch device includes a trolley 2 and a latch seat 1. A fixing mechanism 11 is provided at the upper end of the latch seat 1, and an installation mechanism 12 is provided on one side of the fixing mechanism 11. The trolley 2 is provided with a latch mechanism 21 that cooperates with the fixing mechanism 11. This utility model has a simple structure and high reliability. Its large visible area allows employees to more easily notice the device's usage, reducing the rate of it being overlooked. like Figure 1 As shown, the fixing mechanism 11 includes a pin hole 111, and the mounting mechanism 12 includes a mounting hole 13 located on one side of the pin hole 111. By using bolts to engage with the mounting hole 13, the pin seat 1 can be fixedly installed in the required position. The pin hole 111 can engage with the pin mechanism 21 to restrict the movement of the trolley 2 and improve the safety of the trolley 2 in transporting goods.

[0018] like Figure 1 As shown, the mounting hole 13 includes a bolt hole 131 and a nut hole 132, with the nut hole 132 located on the bolt hole 131. The mounting hole 13, including the bolt hole 131 and the nut hole 132, allows the bolt to be fully screwed into the mounting hole, preventing the bolt head from protruding and causing unnecessary damage, thus increasing the overall structural safety.

[0019] like Figure 1 As shown, bolt hole 131 and nut hole 132 are coaxial circular holes. The coaxiality of bolt hole 131 and nut hole 132 makes bolt installation more convenient.

[0020] like Figure 1 As shown, the pin hole 111 is a through hole, and the mounting hole 13 is a stepped hole. The through hole 111 can increase the insertion depth of the pin 211, improve the reliability of the pin 211, and enhance the safety of the overall structure.

[0021] like Figure 1As shown, mounting holes 13 are evenly distributed around the pin hole 111. The evenly distributed pairs of mounting holes 13 around the pin hole 111 can make the pin holder 1 bear the force more evenly, improve the overall installation strength, and prevent the danger caused by the pin holder 1 falling off.

[0022] like Figure 1 As shown, the pin holder 1 is a frustum shape. The frustum shape of the pin holder 1 ensures its visibility and reduces the sudden speed change caused by impact, thereby improving the reliability of the overall structure.

[0023] like Figure 4 As shown, the latch mechanism 21 includes a latch tube 212 and a latch 211 disposed within the latch tube 212. A latch bracket 213 is provided at the upper end of the latch tube 212, and the latch 211 rests on the latch bracket 213. When the trolley 2 moves, the latch 211 rests on the latch bracket 213, thus preventing the latch 211 from obstructing any movement of the trolley 2. The latch tube 212 allows the latch 211 to remain on the trolley 2, reducing the probability of the latch 211 being lost.

[0024] like Figure 1 and Figure 4 As shown, the pin tube 212 and the pin 211 are in clearance fit, and the pin 211 and the pin hole 111 are in clearance fit. The clearance fit allows the pin 211 to move freely within the pin tube 212 and the pin hole 111, improving the overall structural convenience.

[0025] like Figure 4 As shown, the pin tube 212 is round, the pin holder 213 is L-shaped, and the pin 211 is L-shaped. The fact that both the pin holder 213 and the pin 211 are L-shaped ensures that when the pin 211 is not in use, it can rest on the pin holder 213 and will not easily fall off. This utility model uses a large number of simple parts, and its structure is simple and easy to manufacture.

[0026] This utility model is an anti-backward latch device, including a trolley 2 and a latch seat 1. The upper end of the latch seat 1 is provided with a fixing mechanism 11, and one side of the fixing mechanism 11 is provided with an installation mechanism 12. The trolley 2 is provided with a latch mechanism 21 that cooperates with the fixing mechanism 11. The fixing mechanism 11 includes a latch hole 111, and the installation mechanism 12 includes an installation hole 13 on one side of the latch hole 111. When using this utility model, simply rotate the latch 211, which is attached to the latch frame 213, so that it falls into the latch hole 111 through the latch hole 212. When the trolley 2 needs to move, simply lift the latch 211 and attach it to the latch frame 213. This utility model uses the latch mechanism 21 cooperating with the latch hole 111 to further limit the movement of the trolley 2. The latch seat 1 has a large overall visible area, which reduces the probability of workers ignoring the use of this device. The overall structure of this utility model is simple, easy to manufacture, and easy to operate. It can improve the safety of the trolley 2 in transporting goods.

[0027] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An anti-reverse latch device, comprising a trolley (2), characterized in that, It includes a pin seat (1), a fixing mechanism (11) is provided at the upper end of the pin seat (1), an installation mechanism (12) is provided on one side of the fixing mechanism (11), and a pin mechanism (21) that cooperates with the fixing mechanism (11) is provided on the trolley (2).

2. The anti-reverse pin device according to claim 1, characterized in that: The fixing mechanism (11) includes a pin hole (111), and the mounting mechanism (12) includes a mounting hole (13) located on one side of the pin hole (111).

3. The anti-reverse pin device according to claim 2, characterized in that: The mounting hole (13) includes a bolt hole (131) and a nut hole (132), with the nut hole (132) located above the bolt hole (131).

4. The anti-reverse pin device according to claim 3, characterized in that: The bolt hole (131) and the nut hole (132) are coaxial circular holes.

5. The anti-reverse pin device according to claim 4, characterized in that: The pin hole (111) is a through hole, and the mounting hole (13) is a stepped hole.

6. The anti-reverse pin device according to claim 5, characterized in that: The mounting holes (13) are evenly distributed around the pin holes (111).

7. An anti-reverse locking pin device according to any one of claims 1 to 6, characterized in that: The pin seat (1) is a frustum shape.

8. The anti-reverse pin device according to claim 2, characterized in that: The pin mechanism (21) includes a pin tube (212) and a pin (211) disposed in the pin tube (212). The upper end of the pin tube (212) is provided with a pin bracket (213), and the pin (211) is attached to the pin bracket (213).

9. The anti-reverse pin device according to claim 8, characterized in that: The pin tube (212) is clearance-fitted with the pin (211), and the pin (211) is clearance-fitted with the pin hole (111).

10. The anti-reverse pin device according to claim 9, characterized in that: The pin tube (212) is round, the pin holder (213) is L-shaped, and the pin (211) is L-shaped.

Images