AGV Automatic Locking Mechanism and Transportation Device

Abstract

The present invention provides an AGV automatic locking mechanism and a transport device, which relate to the technical field of traction equipment. The AGV automatic locking mechanism provided by the present invention includes a locking member, a connecting seat, a claw assembly, and a reset assembly; the claw assembly is rotatably connected to the connecting seat, and a reset assembly is provided between the claw assembly and the connecting seat, and the reset assembly is used to apply a force to the claw assembly to reset the claw assembly to form a locking groove for locking the locking member, and the locking groove has an inlet and outlet; the locking member is used to connect with the AGV, and the locking member can overcome the force of the reset assembly and enter the locking groove from the inlet and outlet; the connecting seat is used to connect with a material vehicle. In the AGV automatic locking mechanism provided by the present invention, the claw assembly can automatically lock the locking member under the action of the reset assembly, without the need for additional power support, and gets rid of the traditional connection method through a hook. The claw assembly locks the locking member through the locking groove, and there will be no unhooking problem.

Description

Technical Field

[0001] The present invention relates to the technical field of traction equipment, and in particular to an AGV automatic locking mechanism and a transport device. Background Art

[0002] AGV stands for Automated Guided Vehicle. Automated line equipment such as AGVs and automated tractors are widely used in automated transportation processes in manufacturing workshops, logistics planning, and packaging. The sensitivity of the traction and locking mechanism to the ground has always been a key factor in the implementation of AGV projects. Most factories have extremely poor road conditions due to foundation settlement and long service lives. Conventional hooking mechanisms typically rely on gravity to connect the material cart to the AGV, but cannot compensate for vertical fluctuations that can cause uncoupling in poor road conditions. Summary of the Invention

[0003] The object of the present invention is to provide an AGV automatic locking mechanism and a transport device, wherein the claw assembly can automatically lock the locking member under the action of the reset assembly without the need for additional power support and without the problem of unhooking.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] In a first aspect, the present invention provides an AGV automatic locking mechanism, comprising a locking member, a connecting seat, a claw assembly, and a reset assembly;

[0006] The claw assembly is rotatably connected to the connecting seat, and the reset assembly is provided between the claw assembly and the connecting seat, and the reset assembly is used to apply a force to the claw assembly to reset the claw assembly to form a locking groove for locking the locking member, and the locking groove has an inlet and an outlet;

[0007] The locking member is used to connect with the AGV, and the locking member can overcome the force of the reset assembly and enter the locking groove from the inlet and outlet;

[0008] The connecting seat is used to connect with the material car.

[0009] Furthermore, the claw assembly includes a plurality of claws, and a reset assembly is provided between the claws and the connecting seat;

[0010] The first end of the claw is rotatably connected to the connecting seat;

[0011] The second end of each of the claws is surrounded to form the locking groove.

[0012] Furthermore, the claw assembly includes four claws, and the four claws include two oppositely arranged first claws and two oppositely arranged second claws. The locking groove has two inlets and outlets, one inlet and outlet is formed between the two first claws, and the other inlet and outlet is formed between the two second claws.

[0013] Furthermore, the second end portion of the clamping claw includes a horizontal limiting surface and a vertical limiting surface connected to the horizontal limiting surface;

[0014] The horizontal limiting surface is used to limit the horizontal position of the locking member;

[0015] The vertical limiting surface protrudes outward in a direction close to the axis of the locking groove to limit the vertical position of the locking member.

[0016] Furthermore, the vertical limiting surface includes a first plane perpendicular to the axis of the locking groove and a second plane parallel to the axis of the locking groove. The connection between the first plane and the second plane is provided with an arc chamfer, and the end of the first plane away from the second plane is connected to the horizontal limiting surface.

[0017] Furthermore, the reset assembly includes a spring, and both ends of the spring cooperate with the connecting seat and the claw respectively. Under the action of the spring elastic force, the claw assembly is reset to form the locking groove.

[0018] Furthermore, the locking member includes a latch, which includes a locking portion and a connecting portion connected to the locking portion, the cross-sectional dimension of the locking portion is larger than the cross-sectional dimension of the connecting portion, the locking portion is locked in the locking groove, and the connecting portion extends out of the locking groove and is used to connect to the AGV.

[0019] Furthermore, the cross section of the locking portion is elliptical, both ends of the major axis of the ellipse are used to abut against the locking groove, and the minor axis of the ellipse is smaller than the width of the inlet and outlet.

[0020] Furthermore, the top edge of the locking portion has a planar chamfer.

[0021] Furthermore, the connecting seat includes a top seat and a buffer mechanism connected to the top seat, the top seat is connected to the claw assembly, and the buffer mechanism is used to connect to the trolley.

[0022] Furthermore, the buffer mechanism includes a guide rod, an elastic member and a base slidably connected to the guide rod, the guide rod is connected to the top seat, the elastic member is sleeved on the outside of the guide rod, and the two ends of the elastic member are respectively connected to the top seat and the base, and the base is used to connect to the material cart.

[0023] In a second aspect, the present invention further provides a transport device, comprising an AGV, a trolley, and the AGV automatic locking mechanism described in the above scheme, wherein the locking member is connected to the AGV, and the connecting seat is connected to the trolley.

[0024] The AGV automatic locking mechanism and transport device provided by the present invention can produce the following beneficial effects:

[0025] Before assembly, first connect the locking piece to the AGV and the connecting base to the trolley. Then, the locking piece can overcome the force of the reset assembly, so that the claw assembly rotates relative to the connecting base, so that the locking piece can enter the locking groove from the inlet and outlet. After entering the locking groove, under the force of the reset assembly, the claw assembly is reset, the locking groove locks the locking piece, and the assembly is completed.

[0026] Compared with the prior art, in the AGV automatic locking mechanism provided by the first aspect of the present invention, the claw assembly can automatically lock the locking piece under the action of the reset assembly without the need for additional power support, breaking away from the traditional connection method through the hook. The claw assembly locks the locking piece through the locking groove, and there will be no unhooking problem.

[0027] Compared with the prior art, the transport device provided in the second aspect of the present invention has an AGV, a material cart and the above-mentioned AGV automatic locking mechanism. The AGV automatic locking mechanism has an automatic locking function. Compared with the connection between the AGV and the material cart through a hook, the connection is more stable and there will be no unhooking problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A schematic diagram of the three-dimensional structure of the AGV automatic locking mechanism provided by an embodiment of the present invention;

[0030] Figure 2 A front view of the AGV automatic locking mechanism provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the three-dimensional structure of a claw assembly provided by an embodiment of the present invention at a first viewing angle;

[0032] Figure 4 A schematic diagram of the three-dimensional structure of the claw assembly provided by an embodiment of the present invention at a second viewing angle;

[0033] Figure 5 A schematic diagram of the three-dimensional structure of a latch provided in an embodiment of the present invention.

[0034] Icons: 1-locking piece; 11-locking part; 111-plane chamfer; 12-connecting part; 2-connecting seat; 21-top seat; 22-buffer mechanism; 221-guide rod; 222-elastic member; 223-base; 3-claw assembly; 31-first claw; 32-second claw; 33-horizontal limit surface; 34-vertical limit surface; 341-first plane; 342-second plane; 4-reset assembly; 41-spring; 5-locking groove. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0039] The embodiment of the first aspect of the present invention is to provide an AGV automatic locking mechanism, such as Figure 1As shown, it includes a locking member 1, a connecting seat 2, a claw assembly 3 and a reset assembly 4; the claw assembly 3 is rotatably connected to the connecting seat 2, and a reset assembly 4 is provided between the claw assembly 3 and the connecting seat 2, and the reset assembly 4 is used to apply a force to the claw assembly 3 to reset the claw assembly 3 to form a locking groove 5 for locking the locking member 1, and the locking groove 5 has an inlet and outlet; the locking member 1 is used to connect with the AGV, and the locking member 1 can overcome the force of the reset assembly 4 and enter the locking groove 5 from the inlet and outlet; the connecting seat 2 is used to connect with the material vehicle.

[0040] like Figure 1 As shown, when assembling the above-mentioned AGV automatic locking mechanism, first align the locking piece 1 with the inlet and outlet of the locking groove, and then continue to push the locking piece 1. The locking piece 1 overcomes the force of the reset component 4, so that the claw assembly 3 rotates relative to the connecting seat, the inlet and outlet openings increase, and the locking piece 1 smoothly enters the locking groove. Then, under the force of the reset component 4, the claw assembly 3 is reset, and the locking groove 5 locks the locking piece.

[0041] In the above-mentioned AGV automatic locking mechanism, the claw assembly 3 can automatically lock the locking part 1 under the action of the reset assembly 4 without the need for additional power support, breaking away from the traditional way of connection through a hook. The claw assembly 3 locks the locking part 1 through the locking groove 5, and there will be no unhooking problem.

[0042] In some embodiments, as Figure 1 As shown, the claw assembly 3 includes multiple claws, and a reset assembly 4 is provided between the claws and the connecting seat 2; the first end of the claw is rotatably connected to the connecting seat 2; and the second end of each claw is surrounded to form a locking groove 5.

[0043] In the above-mentioned claw assembly 3, each claw can rotate relative to the connecting seat 2. Therefore, when the locking member 1 enters the locking groove 5 through the inlet and outlet, each claw can rotate to avoid it, so that the locking member 1 can enter the locking groove 5 smoothly.

[0044] Specifically, in order to ensure that the locking groove 5 always limits the locking piece 1, multiple claws are scattered around the axis of the locking groove 5. When the locking piece 1 tends to escape from the locking groove 5, the locking piece 1 pushes the claws to rotate in the direction away from the axis of the locking groove 5. At this time, the inlet and outlet dimensions of the locking groove 5 are reduced, which hinders the locking piece 1, thereby restricting the locking piece 1 within the locking groove 5.

[0045] The claw assembly 3 may include two, three, four, five or other multiple claws.

[0046] In at least one embodiment, Figure 1As shown, the claw assembly 3 includes four claws, which include two oppositely arranged first claws 31 and two oppositely arranged second claws 32. The locking groove 5 has two inlets and outlets, one inlet and outlet is formed between the two first claws 31, and the other inlet and outlet is formed between the two second claws 32.

[0047] Specifically, when in use, the locking member 1 can enter the locking groove 5 through any of the inlets and outlets. Assume that the first inlet and outlet are formed between the two first claws 31, and the second inlet and outlet are formed between the two second claws 32. The locking member 1 enters the locking groove 5 through the first inlet and outlet as an example for specific description:

[0048] oriented Figure 3 In the direction of the lock, first align the locking piece 1 with the first inlet and outlet, and then continue to push the locking piece 1. The locking piece 1 overcomes the force of the reset assembly 4, so that the first claw 31 on the left rotates counterclockwise relative to the connecting seat, and the first claw 31 on the right rotates clockwise relative to the connecting seat. The first inlet and outlet are enlarged, and the locking piece 1 smoothly enters the locking groove. Then, under the force of the reset assembly 4, the two first claws 31 are reset, and the locking groove 5 locks the locking piece.

[0049] It should be noted that the two first claws 31 and the two second claws 32 are arranged opposite each other, and a certain gap can be provided between the two first claws 31 and the two second claws 32, so that when the locking member 1 enters the locking groove 5 through the first inlet and outlet, the two first claws 31 will not touch the two second claws 32 after swinging. Of course, there can also be no gap between the two first claws 31 and the two second claws 32. After the two first claws 31 swing, they push the two second claws 32 to rotate. When the locking member 1 successfully enters the locking groove, the two first claws 31 and the two second claws 32 are simultaneously reset.

[0050] In some embodiments, as Figure 3 As shown, the second end of the claw includes a horizontal limiting surface 33 and a vertical limiting surface 34 connected to the horizontal limiting surface 33; the horizontal limiting surface 33 is used to limit the horizontal position of the locking member 1 to prevent the locking member 1 from falling out of the locking groove 5 along the horizontal direction; the vertical limiting surface 34 protrudes outward in the direction close to the axis of the locking groove 5 to limit the vertical position of the locking member 1 to prevent the locking member 1 from falling out of the locking groove 5 along the vertical direction.

[0051] The above-mentioned claw structure can limit the freedom of the locking member 1 in three mutually orthogonal directions, and stably lock the locking member 1 in the locking groove 5.

[0052] Among them, such as Figure 3 and Figure 4 As shown, the horizontal limiting surface 33 is an arc surface, so that the width dimension of the inlet and outlet of the locking groove 5 is smaller than the maximum cross-sectional dimension of the locking groove 5 .

[0053] by Figure 3 Taking an example for specific explanation, the horizontal limiting surface 33 on the first claw 31 on the left and the second claw 32 on the left is used to abut against one end of the locking member 1, and the horizontal limiting surface 33 on the first claw 31 on the right and the second claw 32 on the right is used to abut against the other end of the locking member 1 to limit the displacement of the locking member 1 in the X-axis direction. At the same time, since the horizontal limiting surface 33 is an arc surface, the width dimension of the inlet and outlet of the locking groove 5 is smaller than the maximum cross-sectional dimension of the locking groove 5. The horizontal limiting surfaces 33 on the four claws jointly limit the displacement of the locking member 1 in the Y-axis direction, and the vertical limiting surfaces 34 on the four claws jointly limit the displacement of the locking member 1 in the Z-axis direction.

[0054] In some embodiments, as Figure 3 and Figure 4 As shown, the vertical limiting surface 34 includes a first plane 341 perpendicular to the axis of the locking groove 5 and a second plane 342 parallel to the axis of the locking groove 5. The connection between the first plane 341 and the second plane 342 is provided with an arc chamfer, and the end of the first plane 341 away from the second plane 342 is connected to the horizontal limiting surface 33.

[0055] The provision of the arc-shaped chamfer can reduce the contact area between the locking groove 5 and the locking member 1 , thereby reducing friction and facilitating the withdrawal of the locking member 1 from the locking groove 5 .

[0056] It should be noted that any structure capable of applying a force to the claw assembly 3 to reset the claw assembly 3 and form the locking groove 5 for locking the locking member 1 can be the reset assembly 4 mentioned in the above embodiment. For example, the reset assembly 4 may include a spring, or the reset assembly may include a magnetic member to reset the claw assembly 3 under the action of a magnetic force.

[0057] In some embodiments, the reset assembly 4 includes a spring 41 , and both ends of the spring 41 cooperate with the connecting seat 2 and the claw respectively. Under the action of the elastic force of the spring 41 , the claw assembly 3 is reset to form a locking groove 5 .

[0058] When the locking member 1 is locked in the locking groove 5 or when the locking member 1 is not assembled in the locking groove 5, the spring 41 can be in a natural state. When the locking groove 5 enters the locking groove 5 from the inlet and outlet, the claw overcomes the elastic force of the spring and rotates. When the locking member 1 is located in the locking groove 5, the spring releases the elastic force to reset the claw.

[0059] In some embodiments, a spring can be positioned externally between the connector 2 and the claw, with one end of the spring attached to the surface of the connector 2 closest to the locking member 1, and the other end attached to the sidewall of the claw. When the locking member 1 enters the locking slot 5 through the inlet and outlet, the claw tensions the spring. Once the locking member 1 is locked within the locking slot 5, the spring releases its force, causing the claw to return to its original position.

[0060] In other embodiments, Figure 1 As shown, the claw is rotatably connected to the connecting base 2 via a bolt. The claw is provided with a limiting post and a through-hole for the bolt to pass through. A spring extends through the through-hole and is sleeved on the outside of the bolt. One end of the spring extends through the through-hole and connects to the connecting base 2, while the other end extends through the through-hole and abuts against the limiting post. When the locking groove 5 enters the locking groove 5 from the inlet and outlet, the limiting post on the claw drives the end of the spring abutting against it to rotate, thereby tightening or loosening the spring. When the locking member 1 is locked in the locking groove 5, the spring releases its elastic force, causing the claw to return to its original position.

[0061] Wherein, the limiting column may not be provided on the clamping claw, and the spring may be directly connected to the clamping claw.

[0062] In some embodiments, as Figure 5 As shown, the locking member 1 includes a latch, which includes a locking portion 11 and a connecting portion 12 connected to the locking portion 11. The cross-sectional dimension of the locking portion 11 is larger than the cross-sectional dimension of the connecting portion 12. The locking portion 11 is locked in the locking groove 5, and the connecting portion 12 extends out of the locking groove 5 and is used to connect to the AGV.

[0063] Specifically, when in use, the locking portion 11 is locked in the locking groove 5 , the horizontal limiting surface 33 defines the horizontal position of the locking portion 11 , and the vertical limiting surface 34 defines the vertical position of the locking portion 11 .

[0064] The locking member 1 has a simple structure and can be quickly locked with the locking groove 5 .

[0065] Specifically, if Figure 5 As shown, in order to facilitate the cancellation of the cooperation between the locking member 1 and the claw assembly 3, the cross section of the locking portion 11 is elliptical, the two ends of the elliptical major axis are used to abut against the locking groove 5, and the minor axis of the ellipse is smaller than the width of the inlet and outlet.

[0066] When the locking portion 11 is locked in the locking groove 5, the two ends of the elliptical major axis are against the inner wall of the locking groove 5, achieving a snap connection with the locking groove 5, and the locking portion 11 cannot be withdrawn from the entrance or exit; when the locking portion 11 needs to be withdrawn from the locking groove 5, the locking portion 11 can be rotated 90° along the axis of the locking groove 5. Since the minor axis of the ellipse is smaller than the width of the entrance or exit, the locking portion 11 can be directly taken out through the entrance or exit.

[0067] In some embodiments, the top edge of the locking portion 11 has a planar chamfer 111. Planar chamfer 111 can reduce the contact area between the locking portion 11 and the claw, thereby reducing friction. In at least one embodiment, the curved chamfer cooperates with the planar chamfer 111, and the curved chamfer and the planar chamfer 111 form a linear contact, which reduces friction between the two during rotation of the locking portion 11.

[0068] In at least one embodiment, the connecting seat 2 includes a top seat 21 and a buffer mechanism 22 connected to the top seat 21 , the top seat 21 is connected to the claw assembly 3 , and the buffer mechanism 22 is used to connect to the trolley.

[0069] The buffer mechanism 22 can buffer the vibration generated by the AGV due to uneven ground, avoiding excessive vertical load concentration on the locking member 1, and has strong applicability.

[0070] It should be noted that any structure that can play a buffering role can be the buffer mechanism 22 mentioned in the above embodiment. For example, the buffer mechanism 22 can include a spring, or the buffer mechanism 22 can include a buffer pad, etc.

[0071] In some embodiments, as Figure 1 and Figure 2 As shown, the buffer mechanism 22 includes a guide rod 221, an elastic member 222 and a base 223 slidably connected to the guide rod 221. The guide rod 221 is connected to the top seat 21, the elastic member 222 is sleeved on the outside of the guide rod 221, and the two ends of the elastic member 222 are respectively connected to the top seat 21 and the base 223. The base 223 is used to connect to the material cart.

[0072] The above-mentioned buffer mechanism 22 has a simple structure. The guide rod 221 guides the base 223, so that the base 223 can move along the axial direction of the guide rod 221. The elastic member 222 acts as a buffer to prevent the material cart from vibrating greatly in the vertical direction when following the AGV.

[0073] The elastic member 222 is a spring.

[0074] An embodiment of the second aspect of the present invention is to provide a transportation device. The transportation device provided by the embodiment of the second aspect of the present invention includes an AGV, a material cart and the above-mentioned AGV automatic locking mechanism, the locking member 1 is connected to the AGV, and the connecting seat 2 is connected to the material cart.

[0075] Compared with the prior art, the transport device provided in the embodiment of the second aspect of the present invention has an AGV, a material cart and the above-mentioned AGV automatic locking mechanism. The AGV automatic locking mechanism has an automatic locking function. Compared with the connection between the AGV and the material cart through a hook, the connection is more stable and there will be no unhooking problem.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An AGV automatic locking mechanism, characterized in that: It comprises a locking member (1), a connecting seat (2), a claw assembly (3) and a reset assembly (4); The claw assembly (3) is rotatably connected to the connecting seat (2), and the reset assembly (4) is provided between the claw assembly (3) and the connecting seat (2), and the reset assembly (4) is used to apply a force to the claw assembly (3) so as to reset the claw assembly (3) to form a locking groove (5) for locking the locking member (1), and the locking groove (5) has an inlet and an outlet; The locking member (1) is used to connect with the AGV, and the locking member (1) can overcome the force of the reset component (4) and enter the locking groove (5) from the inlet and outlet; The connecting seat (2) is used for connecting with the material vehicle; The connecting seat (2) comprises a top seat (21) and a buffer mechanism (22) connected to the top seat (21), the top seat (21) is connected to the claw assembly (3), and the buffer mechanism (22) is used to connect to the material vehicle; The buffer mechanism (22) includes a guide rod (221), an elastic member (222) and a base (223) slidably connected to the guide rod (221); the guide rod (221) is connected to the top seat (21); the elastic member (222) is sleeved on the outside of the guide rod (221); and the two ends of the elastic member (222) are respectively connected to the top seat (21) and the base (223); the base (223) is used to connect to the material cart; The claw assembly (3) includes a plurality of claws, and the second end of the claw includes a horizontal limiting surface (33) and a vertical limiting surface (34) connected to the horizontal limiting surface (33); The horizontal limiting surface (33) is used to limit the horizontal position of the locking member (1); The vertical limiting surface (34) protrudes outward in a direction close to the axis of the locking groove (5) to limit the vertical position of the locking member (1); The locking member (1) includes a latch, the latch includes a locking portion (11) and a connecting portion (12) connected to the locking portion (11), the cross-sectional dimension of the locking portion (11) is larger than the cross-sectional dimension of the connecting portion (12), the locking portion (11) is locked in the locking groove (5), and the connecting portion (12) extends out of the locking groove (5) and is used to connect to the AGV; The cross section of the locking portion (11) is elliptical, the two ends of the major axis of the ellipse are used to abut against the locking groove (5), and the minor axis of the ellipse is smaller than the width of the inlet and outlet.

2. The AGV automatic locking mechanism according to claim 1, characterized in that: A reset assembly (4) is provided between the clamping claw and the connecting seat (2); The first end of the claw is rotatably connected to the connecting seat (2); The second end of each of the claws is surrounded to form the locking groove (5).

3. The AGV automatic locking mechanism according to claim 2, characterized in that: The claw assembly (3) includes four claws, and the four claws include two first claws (31) and two second claws (32) that are oppositely arranged. The locking groove (5) has two inlets and outlets, one of which is formed between the two first claws (31) and the other is formed between the two second claws (32).

4. The AGV automatic locking mechanism according to claim 2, characterized in that: The vertical limiting surface (34) includes a first plane (341) perpendicular to the axis of the locking groove (5) and a second plane (342) parallel to the axis of the locking groove (5); an arc chamfer is provided at the connection between the first plane (341) and the second plane (342); and an end of the first plane (341) away from the second plane (342) is connected to the horizontal limiting surface (33).

5. The AGV automatic locking mechanism according to claim 2, characterized in that: The reset assembly (4) includes a spring (41), and the two ends of the spring (41) respectively cooperate with the connecting seat (2) and the clamping claw. Under the action of the elastic force of the spring (41), the clamping claw assembly (3) is reset to form the locking groove (5).

6. The AGV automatic locking mechanism according to claim 1, characterized in that: The top edge of the locking portion (11) has a plane chamfer (111).

7. A transport device, characterized in that: It comprises an AGV, a material cart and the AGV automatic locking mechanism according to any one of claims 1 to 6, wherein the locking member (1) is connected to the AGV, and the connecting seat (2) is connected to the material cart.

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