Telescopic fork anti-collision mechanism

Abstract

The utility model discloses a telescopic fork anti-collision mechanism which comprises first anti-collision installation plates arranged on the two sides of the front end of a fork body in pairs, the first anti-collision installation plates are fixedly connected with a second anti-collision installation plate, the length directions of the first anti-collision installation plates and the second anti-collision installation plate are the same as the direction of the fork body, and the ends of the two first anti-collision installation plates are connected with a third anti-collision installation plate. A fixing plate on the first anti-collision mounting plate is elastically connected with a baffle at the end of the second anti-collision mounting plate through an elastic piece, the elastic piece and the fixing plate are limited through a guide screw, the second anti-collision mounting plate is in sliding fit with the fork body through a miniature guide rail, and the other end of the first anti-collision mounting plate is movably connected with a signal transmitting end assembly. The signal transmitting end assembly is in signal connection with the signal receiving end assembly. The space of the front end of the fork body is fully utilized, the anti-collision mechanism and the whole structure of the telescopic fork are integrated, and under the condition that the size is not increased too much, the protection capacity for the fork body is effectively enhanced.

Description

Technical Field

[0001] This utility model relates to the field of telescopic fork manufacturing, and specifically to a telescopic fork anti-collision mechanism. Background Technology

[0002] With the accelerating pace of economic globalization, the enormous potential of automated storage and retrieval systems (AS / RS) is attracting increasing attention. As a crucial component of logistics centers, AS / RS directly impacts corporate strategies and plans, directing and adjusting corporate actions. Due to their high storage and retrieval efficiency, AS / RS can effectively connect off-site production processes, forming an automated logistics system within storage. This creates a planned and organized production chain, significantly enhancing production capacity. AS / RS has become a hallmark of enterprise production and management informatization, and telescopic forks are one of the core pieces of equipment in the entire AS / RS system.

[0003] In the field of automated storage and retrieval systems (AS / RS) and telescopic forklifts, anti-collision mechanisms are core components that ensure the safety of goods transportation and prevent equipment collision damage. Currently, traditional telescopic forklift anti-collision mechanisms generally employ a dual-trigger switch design. This type of solution reveals the following significant drawbacks in practical applications:

[0004] 1. High cost: The dual-trigger switch has a complex structure, resulting in higher material and assembly costs;

[0005] 2. Low reliability: The triggering mechanism is not strong enough, the anti-collision effect is not significant, and the sensitivity is low;

[0006] 3. Poor adaptability: It is difficult to meet the installation requirements of forks with different cross-sectional sizes.

[0007] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this application. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a telescopic fork anti-collision mechanism.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A telescopic fork anti-collision mechanism includes first anti-collision mounting plates located at the front end of the fork body and arranged in pairs on both sides of the fork body. Each first anti-collision mounting plate is connected to a second anti-collision mounting plate, and the length directions of both the first and second anti-collision mounting plates are in the same direction as the length direction of the fork body. A fixing plate is mounted on the first anti-collision mounting plate, and the fixing plate is elastically connected to the second anti-collision mounting plate through an elastic member. The elastic deformation direction of the elastic member is in the same direction as the length direction of the fork body. A miniature guide rail that cooperates with the fork body is mounted on the second anti-collision mounting plate.

[0011] The ends of the two first anti-collision mounting plates are connected by a third anti-collision mounting plate;

[0012] A signal transmitting component is movably connected to one end of the first anti-collision mounting plate away from the third anti-collision mounting plate, and the signal transmitting component is signal-connected to the signal receiving component.

[0013] Furthermore, the elastic element is a compression spring, and the two ends of the compression spring are respectively fixedly connected to the fixed plate and the second anti-collision mounting plate.

[0014] Furthermore, the elastic element and the fixing plate are connected by guide screws.

[0015] Furthermore, the second anti-collision mounting plate has baffles perpendicular to it at both ends along its length, one of the baffles being connected to the elastic member.

[0016] Furthermore, the first anti-collision mounting plate and the second anti-collision mounting plate are fixedly connected by a first screw; the first anti-collision mounting plate and the third anti-collision mounting plate are fixedly connected by a second screw.

[0017] Furthermore, the miniature guide rail includes a guide rail body and a slider that slides with the guide rail body. The guide rail body is mounted on the fork body, and the slider is mounted on the second anti-collision mounting plate.

[0018] Furthermore, the signal connection between the signal transmitting component and the signal receiving component can be wireless or wired.

[0019] Furthermore, the surface of the third anti-collision mounting plate is covered with a cushioning element.

[0020] Furthermore, the first anti-collision mounting plate, the second anti-collision mounting plate, and the third anti-collision mounting plate are made of high-strength aluminum alloy, stainless steel, or engineering plastic.

[0021] Compared with existing technologies, the advantages of this utility model are as follows: A stable protective frame is formed by the interconnection of the first, second, and third anti-collision mounting plates, fully utilizing the space at the front end of the fork body. This integrates the anti-collision mechanism with the overall structure of the telescopic fork, effectively enhancing the protection of the fork body without increasing its volume excessively. This application uses fewer components, effectively reducing raw material costs. The simple structure also reduces assembly labor and time costs, effectively controlling the overall cost of the anti-collision mechanism. When the fork extends and the third anti-collision mounting plate collides with other goods, the miniature guide rail and the first and second anti-collision mounting plates can quickly move backward, promptly triggering the signal transmitting component. The signal transmitting component can quickly transmit the signal to the signal receiving component, thereby quickly issuing instructions to avoid collisions, resulting in a timely and efficient response. Furthermore, this application can accommodate forks of various cross-sections, has wide applicability, and can be applied to forks of different specifications and shapes, improving the versatility of the mechanism. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0024] Explanation of reference numerals and components in the accompanying drawings:

[0025] 1. First anti-collision mounting plate; 2. Second anti-collision mounting plate; 3. Third anti-collision mounting plate; 4. Fixing plate; 5. Elastic element; 6. Miniature guide rail; 7. Signal transmitting end assembly; 8. Signal receiving end assembly; 9. Guide screw. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described through specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] See appendix Figure 1As shown, this application discloses a telescopic fork anti-collision mechanism, mainly used to protect the telescopic fork from collisions with obstacles during operation, thereby reducing equipment damage and cargo loss. The mechanism mainly consists of a first anti-collision mounting plate 1, a second anti-collision mounting plate 2, a third anti-collision mounting plate 3, a fixing plate 4, an elastic element 5, a miniature guide rail 6, a signal transmitting end assembly 7, and a signal receiving end assembly 8.

[0028] Two first anti-collision mounting plates 1 are installed in pairs on both sides of the front end of the fork body, with their length direction aligned with the length direction of the fork body. A fixing plate 4 is installed below the first anti-collision mounting plate 1 near its end, perpendicular to the first anti-collision mounting plate 1. The two are fixed together by welding, bolting, or other methods. The second anti-collision mounting plate 2 has the same length direction as the first anti-collision mounting plate 1. The second anti-collision mounting plate 2 is fixed to one side of the first anti-collision mounting plate 1 along its length direction by first screws to ensure the stability and reliability of the connection. The second anti-collision mounting plate 2 is perpendicular to the first anti-collision mounting plate 1. The ends of the two first anti-collision mounting plates 1 located on both sides of the fork body are fixedly connected by a third anti-collision mounting plate 3. The end of the third anti-collision mounting plate 3 furthest from the first anti-collision mounting plate 1 and furthest from the fixing plate 4 is fixed at the connection point of the first anti-collision mounting plate 1 and the third anti-collision mounting plate 3 by second screws. A signal transmitter assembly 7 is movably connected to one end of the first anti-collision mounting plate 1 near the fixed plate 4. This movable connection can be achieved through a movable joint, allowing the signal transmitter assembly 7 to rotate and swing within a certain range to better adapt to different collision situations. The signal transmitter assembly 7 is connected to the signal receiver assembly 8. This application forms a stable protective frame by interconnecting the first anti-collision mounting plate 1, the second anti-collision mounting plate 2, and the third anti-collision mounting plate 3. This compact layout fully utilizes the space at the front end of the fork, integrating the anti-collision mechanism with the overall structure of the telescopic fork, effectively enhancing the protection capability of the fork without increasing its volume excessively. Simultaneously, the movable connection of the signal transmitter assembly 8 to the first anti-collision mounting plate 1 allows for flexible sensing of positional changes during a collision, accurately triggering signal transmission and avoiding signal misjudgment or omission due to structural rigidity, greatly improving the sensitivity and reliability of the anti-collision system.

[0029] The second anti-collision mounting plate 2 has baffles perpendicular to its length at both ends. The elastic element 5 is a compression spring, with its two ends fixedly connected to the fixed plate 4 and one of the baffles of the second anti-collision mounting plate 2, respectively. The fixed plate 4 provides a fixed support point for the elastic element 5, ensuring its proper function. The elastic deformation direction of the elastic element 5 is in the same direction as the length of the fork. When a collision occurs, the compression spring can be compressed, providing cushioning and resetting. Preferably, the elastic element 5 and the fixed plate 4 are connected by guide screws 9. The guide screws 9 ensure that the elastic element 5 moves in the correct direction during compression and extension, preventing deviation or twisting. Furthermore, the elastic element 5 plays a crucial buffering role. When the anti-collision plate collides with an obstacle, the spring is compressed, absorbing and dispersing most of the collision energy, reducing the direct impact of the impact force on the fork and the cargo. This not only reduces the risk of damage to the fork itself but also effectively protects the transported cargo, reducing cargo loss due to collisions.

[0030] The miniature guide rail 6 includes a guide rail body and a slider that slides in conjunction with the guide rail body. The guide rail body is mounted on the fork and fixed by bolts or other means to ensure accurate and stable positioning. The slider is mounted on the second anti-collision mounting plate 2, allowing the second anti-collision mounting plate 2 to slide smoothly on the guide rail body, thereby realizing the movement of the entire anti-collision mechanism. The use of the miniature guide rail 6 ensures that the second anti-collision mounting plate 2 can slide smoothly along the length of the fork body during a collision. The high precision of the fit between the guide rail body and the slider and the low friction allow the anti-collision mechanism to react quickly to a collision and return to its initial position quickly after the collision is resolved, ensuring the normal working rhythm of the telescopic fork and preventing work efficiency from being affected by jamming of the anti-collision mechanism.

[0031] Preferably, the signal connection between the signal transmitting component 7 and the signal receiving component 8 is either wireless or wired. When the third anti-collision mounting plate 3 at the front end of the fork encounters an obstacle, the force is transmitted to the second anti-collision mounting plate 2, which is connected to the first anti-collision mounting plate 1. Since the second anti-collision mounting plate 2 is connected to the fork via a miniature guide rail 6, it can move along the length of the fork. Simultaneously, the signal transmitting component 7, which is movably connected to the first anti-collision mounting plate 1, changes position as the first anti-collision mounting plate 1 moves, thus changing its relative position with the signal receiving component 8. This positional change is detected by the signal transmitting component 7, converted into a signal, and then transmitted to the signal receiving component 8. Preferably, the signal transmitting component 7 and the signal receiving component 8 can use different types of position signal switches, such as electromagnetic proximity switches or mechanical friction switches, and are not limited to a single type. This allows the anti-collision mechanism to be flexibly configured according to different working scenarios and customer needs, further expanding its application range.

[0032] Preferably, the materials of the first anti-collision mounting plate 1, the second anti-collision mounting plate 2, and the third anti-collision mounting plate 3 can be selected from high-strength aluminum alloy, stainless steel, or engineering plastics, depending on actual needs. High-strength aluminum alloy is lightweight and high-strength; stainless steel has good corrosion resistance; and engineering plastics have advantages such as low cost and easy processing. Users can choose the appropriate material according to the usage environment and specific requirements.

[0033] Preferably, the buffer material, such as rubber or sponge, fitted onto the surface of the third anti-collision mounting plate 3 further enhances the buffering effect. At the moment of impact, the buffer material can be the first to contact the obstacle, providing initial shock absorption and protection, while also reducing damage to the obstacle. This makes it suitable for various work scenarios where collision damage is highly sensitive.

[0034] How this application works:

[0035] When the telescopic fork collides with an obstacle at its front end (third anti-collision mounting plate 3) during operation, the impact force is transmitted through the third anti-collision mounting plate 3 to the first anti-collision mounting plate 1 and the second anti-collision mounting plate 2. Since the second anti-collision mounting plate 2 is connected to the fork body via a micro-guide rail 6, under the action of the impact force, the second anti-collision mounting plate 2 slides backward relative to the fork body along the micro-guide rail 6, compressing the elastic element 5. Simultaneously, the signal transmitting component 7 connected to the first anti-collision mounting plate 1 changes position as the first anti-collision mounting plate 1 moves, causing a change in the relative position between the signal transmitting component 7 and the signal receiving component 8. The signal transmitting component 7 detects this change and converts it into an electrical signal. This electrical signal is transmitted to the signal receiving component 8 via wired or wireless means. After receiving the signal, the signal receiving component 8 transmits it to the control system. Based on the received signal, the control system controls the telescopic fork to stop moving, retreat, or decelerate, preventing further collisions with the obstacle and thus protecting both the telescopic fork and the cargo. After the collision is resolved, the elastic force of the elastic element 5 restores the second anti-collision mounting plate 2 and the first anti-collision mounting plate 1 to their initial positions, and the relative positions of the signal transmitting end assembly 7 and the signal receiving end assembly 8 also return to normal, allowing the telescopic fork to continue operating normally.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A telescopic fork anti-collision mechanism, characterized in that, The device includes a first anti-collision mounting plate located at the front end of the fork and arranged in pairs on both sides of the fork. Each first anti-collision mounting plate is connected to a second anti-collision mounting plate, and the length directions of both the first and second anti-collision mounting plates are in the same direction as the length direction of the fork. A fixing plate is mounted on the first anti-collision mounting plate, and the fixing plate is elastically connected to the second anti-collision mounting plate through an elastic member. The elastic deformation direction of the elastic member is in the same direction as the length direction of the fork. A miniature guide rail that cooperates with the fork is mounted on the second anti-collision mounting plate. The ends of the two first anti-collision mounting plates are connected by a third anti-collision mounting plate; A signal transmitting component is movably connected to one end of the first anti-collision mounting plate away from the third anti-collision mounting plate, and the signal transmitting component is signal-connected to the signal receiving component.

2. A telescopic fork anti-collision mechanism according to claim 1, characterized in that, The elastic element is a compression spring, and the two ends of the compression spring are fixedly connected to the fixed plate and the second anti-collision mounting plate, respectively.

3. A telescopic fork anti-collision mechanism according to claim 1, wherein The elastic element and the fixing plate are connected by guide screws.

4. The telescopic fork anti-collision mechanism according to claim 1, wherein, The second anti-collision mounting plate has baffles perpendicular to it at both ends along its length, one of the baffles being connected to the elastic member.

5. The telescopic fork anti-collision mechanism according to claim 1, characterized in that, The first anti-collision mounting plate and the second anti-collision mounting plate are fixedly connected by a first screw; the first anti-collision mounting plate and the third anti-collision mounting plate are fixedly connected by a second screw.

6. A telescopic fork anti-collision mechanism according to claim 1, wherein The miniature guide rail includes a guide rail body and a slider that slides with the guide rail body. The guide rail body is mounted on the fork body, and the slider is mounted on the second anti-collision mounting plate.

7. A telescopic fork anti-collision mechanism according to claim 1, wherein The signal connection between the signal transmitting component and the signal receiving component can be wireless or wired.

8. The telescopic fork anti-collision mechanism according to claim 1, characterized in that, The surface of the third anti-collision mounting plate is covered with a cushioning element.

9. A telescopic fork anti-collision mechanism according to claim 1, wherein The first anti-collision mounting plate, the second anti-collision mounting plate, and the third anti-collision mounting plate are made of high-strength aluminum alloy, stainless steel, or engineering plastic.

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