Anti-collision device for AGV

Abstract

The utility model discloses a kind of anti-collision devices for AGV car, including microswitch, the one end of microswitch is provided with shaft sleeve, the inside of shaft sleeve is provided with striker, the outside of striker is covered with compression spring, the striker is installed on AGV body, the side of AGV body is provided with first anti-collision strip, the side of first anti-collision strip is provided with second anti-collision strip. By the direct contact cooperation of striker and microswitch contact piece, when collision occurs, second anti-collision strip pushes first anti-collision strip and extrudes striker, striker triggers dynamic disconnect switch after compression compression spring, and AGV car is triggered in time Emergency stop;The redundancy design of two groups of microswitch further improves triggering reliability, avoids single switch failure failure, each component structure is simple, assembly relationship is clear, first anti-collision strip and second anti-collision strip adopt clamping groove clamping, convenient for later maintenance and component replacement;The round hole design of AGV body can accurately position striker, ensure installation accuracy.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision device technology, specifically an anti-collision device for AGV vehicles. Background Technology

[0002] In industrial production and logistics warehousing scenarios, AGVs are widely used due to their advantages such as automatic navigation and unmanned handling. To avoid collisions between AGVs and surrounding equipment, goods, or personnel during operation, existing AGVs are usually equipped with anti-collision devices, commonly including infrared sensors, lidar, or simple mechanical buffer structures. However, existing anti-collision devices have significant drawbacks: firstly, infrared sensors and lidar are susceptible to interference from environmental factors such as dust and strong light, creating blind spots and causing anti-collision warnings to fail; secondly, simple mechanical buffer structures often use a single spring or rubber pad, which can only provide basic buffering and cannot promptly trigger the AGV's emergency stop mechanism. Furthermore, the buffering effect is limited, and collisions can still easily damage the AGV itself or the object it hits, making it difficult to meet the requirements for high-precision and high-reliability anti-collision. Therefore, those skilled in the art have provided an anti-collision device for AGVs to address the problems mentioned in the background section. Summary of the Invention

[0003] The purpose of this invention is to provide an anti-collision device for AGV vehicles to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An anti-collision device for an AGV vehicle includes a micro switch, one end of which is provided with a bushing, a striker is provided inside the bushing, a compression spring is sleeved on the outside of the striker, the striker is mounted on the AGV body, a first anti-collision strip is provided on one side of the AGV body, a second anti-collision strip is provided on one side of the first anti-collision strip, and plastic covers are provided on both sides of the first and second anti-collision strips.

[0005] One end of the micro switch is provided with a micro switch contact piece, which contacts the firing pin.

[0006] As a further improvement of this utility model: the distance between the AGV body and the first anti-collision strip is the stroke A, and the distance between the micro switch and the striker is the stroke B.

[0007] As a further improvement of this utility model: both the firing pin and the compression spring are inserted into the inside of the bushing, and the length of the firing pin is greater than the length of the bushing.

[0008] As a further improvement of this utility model, the micro switch is fixed to one side of the bushing by an L-shaped mounting plate.

[0009] As a further improvement of this utility model, two sets of micro switches and bushings are provided, both installed on the same side of the AGV body.

[0010] As a further improvement of this utility model: the bushing is fixedly connected to the AGV body by a fixing bolt, and the surface of the AGV body is provided with a round hole for the impact pin to be inserted.

[0011] As a further improvement of this utility model: the first anti-collision strip has an H-shaped structure and is made of aluminum.

[0012] As a further improvement of this utility model: one end of the second anti-collision strip has a D-shaped structure and the other side has a T-shaped structure, and the second anti-collision strip is a component made of silicone material.

[0013] As a further improvement of this utility model: the first anti-collision strip has slots on both sides, and the slots match the T-shaped structural piece.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the direct contact between the striker and the micro switch contact, when a collision occurs, the second anti-collision strip pushes the first anti-collision strip to squeeze the striker. After the striker compresses the spring, it quickly triggers the normally closed switch, which promptly triggers the AGV vehicle to stop. The redundant design of the two sets of micro switches further improves the triggering reliability and avoids failure of a single switch.

[0015] 2. Adopting a double-layer buffer structure of "aluminum first anti-collision strip and silicone second anti-collision strip": The silicone material and D-shaped structure of the second anti-collision strip have good elastic deformation ability, which can initially absorb the impact force of the collision; the aluminum H-shaped structure of the first anti-collision strip has both rigidity and buffering, which can both transmit the collision force to trigger the micro switch and help weaken the impact force. The double buffer effectively reduces the damage to the AGV body and the object being collided with.

[0016] 3. The components have simple structures and clear assembly relationships. The first and second anti-collision strips are connected by a slot, which facilitates later maintenance and component replacement. The round hole design of the AGV body can accurately position the impact pin and ensure installation accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a collision avoidance device for AGV vehicles. Figure 2 This is a schematic diagram of the installation structure of a micro switch in an anti-collision device for AGV vehicles.

[0018] In the diagram: 1. Micro switch; 2. Bushing; 3. Compression spring; 4. Impact pin; 5. AGV body; 6. Fixing bolt; 7. First anti-collision strip; 8. Second anti-collision strip; 9. Plastic cover; 10. Micro switch contact. Detailed Implementation

[0019] Please see Figures 1-2 In this embodiment of the present invention, an anti-collision device for an AGV vehicle is provided. The specific technical solution is as follows: The anti-collision device includes a micro switch 1, a bushing 2, a compression spring 3, a striker 4, an AGV body 5, a fixing bolt 6, a first anti-collision strip 7, a second anti-collision strip 8, a plastic cover 9, and a micro switch contact 10. The connection relationship and structural characteristics of each component are as follows: One end of the micro switch 1 is fixedly connected to the bushing 2 via an L-shaped mounting plate. A striker 4 is movably inserted inside the bushing 2, and a compression spring 3 is sleeved on the outside of the striker 4. The compression spring 3 and the striker 4 are embedded together inside the bushing 2. The length of the striker 4 is greater than the length of the bushing 2, ensuring that both ends of the striker 4 can extend to the outside of the bushing 2. A micro switch contact 10 is provided at the end of the micro switch 1 near the bushing 2. The micro switch contact 10 is in direct contact with one end of the striker 4, forming a triggering structure. The bushing 2 is fixedly connected to the AGV body 5 by the fixing bolt 6. The surface of the AGV body 5 is provided with a round hole for the impact pin 4 to be inserted. The end of the impact pin 4 away from the micro switch 1 is inserted into the round hole to realize the movable positioning of the impact pin 4. A first anti-collision strip 7 is provided on one side of the AGV body 5, and a second anti-collision strip 8 is provided on the side of the first anti-collision strip 7 away from the AGV body 5. The first anti-collision strip 7 is an aluminum component with an H-shaped structure and slots on both sides. The second anti-collision strip 8 has a D-shaped structure at one end and a T-shaped structure at the other end, and is made of silicone. The T-shaped structure of the second anti-collision strip 8 matches and engages with the slots of the first anti-collision strip 7, so that the two can be detachably connected. The two ends of the first anti-collision strip 7 and the second anti-collision strip 8 are fastened together with plastic caps 9 to protect the end structures of the anti-collision strips. "Stroke A (the maximum active stroke between the AGV body 5 and the first anti-collision strip 7, i.e. the maximum compressible distance of the anti-collision strip) is preferably 5-10mm; stroke B (the initial distance between the micro switch 1 and the striker 4, i.e. the minimum distance the striker needs to move to trigger the micro switch) is preferably 2-5mm. Through the design of 'stroke A > stroke B', it is ensured that the anti-collision strip buffers first and the striker triggers the switch after a collision, avoiding damage to the micro switch due to excessive compression." The micro switch 1 and the bushing 2 are provided in two sets, both of which are installed on the same side of the AGV body 5, preferably distributed at both ends of the side, to form a redundant triggering structure and reduce the risk of anti-collision failure caused by the failure of a single component.

[0020] The micro switch 1 is mounted on the bushing 2 via a bracket. The compression spring 3 and the striker 4 are mounted on the inside of the AGV body 5 via the bushing 2. The aluminum anti-collision strip is mounted on the two installed strikers 4 on the outside of the AGV body 5. The second anti-collision strip 8 is embedded in the first anti-collision strip 7. Finally, the plastic cover 9 is inserted into both ends of the first anti-collision strip 7 and the second anti-collision strip 8 and fixed by the buckles on the plastic cover and the corresponding holes on the first anti-collision strip 7.

[0021] When the AGV collides with an object or person, the first thing it comes into contact with is the second anti-collision strip 8. The silicone acts as a buffer to prevent damage to the object or person. The impact force is transmitted to the striker 4 through the first anti-collision strip 7. The striker 4 compresses the spring 3 and moves forward until it touches the micro switch contact 10 and presses the contact to close the switch and output a switching signal, thus completing the output of the collision signal. Since the installation distance between the first anti-collision strip 7 and the AGV body is fixed, the design ensures that the maximum stroke A of the anti-collision strip is greater than the distance B at the other end of the striker, so that the striker will not damage the micro switch 1.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A collision avoidance device for AGV vehicles, characterized in that, The device includes a micro switch (1), one end of which is provided with a bushing (2), a striker (4) is provided inside the bushing (2), a compression spring (3) is sleeved on the outside of the striker (4), the striker (4) is mounted on the AGV body (5), a first anti-collision strip (7) is provided on one side of the AGV body (5), a second anti-collision strip (8) is provided on one side of the first anti-collision strip (7), and plastic caps (9) are provided on both sides of the first anti-collision strip (7) and the second anti-collision strip (8).

2. The anti-collision device for AGV vehicles according to claim 1, characterized in that, One end of the micro switch (1) is provided with a micro switch contact (10), and the micro switch contact (10) is in contact with the striker (4).

3. The anti-collision device for AGV vehicles according to claim 1, characterized in that, The distance between the AGV body (5) and the first anti-collision strip (7) is the stroke A, and the distance between the micro switch (1) and the striker (4) is the stroke B.

4. The anti-collision device for AGV vehicles according to claim 1, characterized in that, The striking pin (4) and the compression spring (3) are both inserted into the inside of the bushing (2), and the length of the striking pin (4) is greater than the length of the bushing (2).

5. A collision avoidance device for AGV vehicles according to claim 1, characterized in that, The micro switch (1) is fixed to one side of the bushing (2) by an L-shaped mounting plate.

6. A collision avoidance device for AGV vehicles according to claim 1, characterized in that, Two sets of micro switches (1) and bushings (2) are provided, both installed on the same side of the AGV body (5).

7. A collision avoidance device for AGV vehicles according to claim 1, characterized in that, The bushing (2) is fixedly connected to the AGV body (5) by a fixing bolt (6), and the surface of the AGV body (5) is provided with a round hole for the impact pin (4) to be inserted.

8. A collision avoidance device for AGV vehicles according to claim 1, characterized in that, The first anti-collision strip (7) has an H-shaped structure and is made of aluminum.

9. A collision avoidance device for AGV vehicles according to claim 8, characterized in that, One end of the second anti-collision strip (8) has a D-shaped structure and the other side has a T-shaped structure. The second anti-collision strip (8) is a component made of silicone material.

10. A collision avoidance device for an AGV vehicle according to claim 9, characterized in that, The first anti-collision strip (7) has slots on both sides, which match the T-shaped structural piece.

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