Clamping mechanism and AGV trolley

Abstract

The present application relates to a kind of clamping mechanism and AGV car, comprising: support arm, set in AGV car, first clamping component, including pressure contact piece and abutment, abutment is set on support arm, and with support arm sliding fit, pressure contact piece is set in the side of abutment away from support arm, second clamping component;Including linkage and clamping block, linkage is rotatably connected with support arm, and the lower side of the end of linkage away from support arm is fixedly connected with clamping block;Pressure contact piece is pressed on the upside of linkage, abutment slides along support arm, with linkage is rotated and pressed down relative to support arm, and with clamping block and abutment are close to lock first state, and with linkage is rotated and lifted up relative to support arm, and with clamping block and abutment are far from the second state of unlocking;Not only optimize the step of locking and unlocking between AGV car and trailer mechanism, also improve the efficiency of locking and unlocking realizes automatic control.

Description

Technical Field

[0001] This invention relates to the field of automated transportation technology, and in particular to a clamping mechanism and an AGV trolley. Background Technology

[0002] In order to effectively improve the transportation efficiency and increase the transportation volume of warehousing logistics, AGV trolleys used for traction are usually equipped with a trailer or pallet-like towing mechanism. In the existing technology, when AGV trolleys are connected to the equipped trailer mechanism, the connection method of hook and pin is mostly adopted. However, the locking and unlocking operation steps using this method are cumbersome, inefficient, time-consuming and labor-intensive. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the cumbersome connection steps between the AGV trolley and the towing mechanism in the prior art, thereby providing a clamping mechanism and an AGV trolley.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A clamping mechanism, comprising:

[0006] support arm,

[0007] The first clamping assembly includes a crimping member and an abutment portion. The abutment portion is disposed on the support arm and slides with the support arm. The crimping member is disposed on the side of the abutment portion facing away from the support arm.

[0008] The second clamping assembly includes a linkage and a clamping block. The linkage is rotatably connected to the support arm, and the lower side of the linkage away from the support arm is fixedly connected to the clamping block.

[0009] The pressing member is pressed against the upper side of the linkage member, and the abutting part slides along the support arm. It has a first state in which the linkage member rotates and presses down relative to the support arm, and the clamping block moves closer to the abutting part and locks together. It also has a second state in which the linkage member rotates and lifts relative to the support arm, and the clamping block moves away from the abutting part and unlocks.

[0010] Preferably, the support arm is provided with a slide rail, and the abutment portion is provided with a slider corresponding to the slide rail, the slider slidingly engaging with the slide rail.

[0011] Preferably, the abutting portion includes an abutting surface and an L-shaped abutting post, the abutting surface and the L-shaped abutting post being fixedly connected to the side facing the clamping block, and the abutting surface coinciding with the horizontal projection of the end face of the support arm facing the clamping block.

[0012] The abutment post has a mounting groove on one side corresponding to the slide rail, and the slider is disposed in the mounting groove.

[0013] Preferably, the pressing component includes a pressing roller, and the L-shaped abutment post has an ear on the side facing away from the slide rail, and the pressing roller is rotatably connected to the ear.

[0014] Preferably, the abutting portion further includes an L-shaped reinforcing member, which includes a first reinforcing rod and a second reinforcing rod.

[0015] Furthermore, the first reinforcing rod is fixedly connected to the L-shaped abutment post, and the second reinforcing rod is fixedly connected to the abutment surface.

[0016] Preferably, the linkage includes a Z-shaped rod.

[0017] The middle part of the Z-shaped rod is rotatably connected to the support arm, and the clamping block is fixedly connected to the end of the Z-shaped rod away from the support arm.

[0018] Preferably, the second clamping assembly further includes a reset member.

[0019] The Z-shaped rod has a first fixing post at its end away from the clamping block, and a second fixing post is provided on the support arm. One end of the reset member is fixedly connected to the first fixing post, and the other end is fixedly connected to the second fixing post.

[0020] The reset element includes an elastic element.

[0021] Preferably, the device further includes a driving member, which is fixedly mounted on the support arm, and the output end of the driving member is connected to the abutment portion to drive the abutment portion to slide on the support arm.

[0022] Preferably, it further includes a limiting component, the limiting component including a first contact, a second contact and a sensing device, the sensing device being signal-connected to the first contact and the second contact;

[0023] The first contact, the second contact, and the sensing device are disposed on the same side, and the sensing device is fixedly disposed on the abutment portion. The first contact and the second contact are disposed at intervals on the support arm.

[0024] The sensing device is communicatively connected to the driving component.

[0025] An AGV (Automated Guided Vehicle) includes a vehicle body and a clamping mechanism as described in any one of the above, wherein the support arm is disposed on the vehicle body.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] The clamping mechanism and AGV trolley provided in the above technical solution slide and connect the abutment part with a pressing member on the lower side to the support arm, while simultaneously connecting the linkage member with a clamping block to the support arm. Based on the upper pressing of the pressing member and the linkage member, during the sliding of the abutment part along the support arm, there is a first state in which the linkage member rotates and presses down relative to the support arm, causing the clamping block and the abutment part to move closer and lock together; and a second state in which the linkage member rotates and lifts relative to the support arm, causing the clamping block and the abutment part to move away and unlock. On the one hand, this optimizes the locking and unlocking steps between the clamping mechanism and the towing mechanism, improving the efficiency of locking and unlocking. On the other hand, through the upper pressing of the pressing member and the linkage member, the abutment part can cooperate with the clamping block to complete the locking and unlocking actions during the sliding of the support arm, realizing automated control. Furthermore, based on the cooperation between the abutment part and the clamping block for clamping and locking, the safety and reliability of the connection between the AGV trolley and the towing mechanism are greatly improved. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the clamping mechanism provided in one embodiment of the present invention.

[0030] Figure 2 for Figure 1 The diagram shows the exploded structure of the clamping mechanism.

[0031] Figure 3 for Figure 1 The diagram shows another exploded structure of the clamping mechanism.

[0032] Figure 4 for Figure 1 The diagram shows the overall structure of the AGV trolley, clamping mechanism, and towing mechanism.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Support arm; 11. Slide rail; 12. Second fixed column; 13. Mounting plate; 14. Protective shell; 141. Assembly hole; 2. L-shaped abutment column; 21. Mounting groove; 22. L-shaped reinforcing member; 221. First reinforcing rod; 222. Second reinforcing rod; 23. Ear; 24. Slider; 25. Reinforcing rib; 26. Abutment surface; 27. Pressing member; 3. Z-shaped rod; 31. First positioning column; 32. Clamping block; 4. Reset member; 5. Driving member; 51. Switching device; 6. Sensing device; 61. First contact; 62. Second contact; 7. Rotating device; 8. Towing mechanism; 9. AGV trolley. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the 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 this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] This invention provides a clamping mechanism, such as... Figure 1 and Figure 2As shown, the assembly includes: a support arm 1, a first clamping assembly, and a second clamping assembly. The support arm 1 is used to mount the first and second clamping assemblies and cooperates with them to lock or unlock the towing mechanism 8. Specifically, the first clamping assembly includes a pressing member 27 and an abutment portion. The abutment portion is disposed on the support arm 1 and slides with the support arm 1, while the pressing member 27 is fixedly disposed on the side of the abutment portion facing away from the support arm 1. The second clamping assembly includes a linkage member and a clamping block 32. Furthermore, the linkage is rotatably connected to the support arm 1. In order to facilitate the cooperation between the clamping block 32 and the abutment, the lower side of the end of the linkage away from the support arm 1 is fixedly connected to the clamping block 32, and the pressing member 27 is pressed onto the upper side of the linkage. Then, when the abutment slides along the support arm 1, it has a first state in which the linkage rotates and presses down relative to the support arm 1, and the clamping block 32 moves closer to the abutment and locks together, and a second state in which the linkage rotates and lifts relative to the support arm 1, and the clamping block 32 moves away from the abutment and unlocks.

[0039] Understandably, in the first state, when the clamping mechanism is connected and locked to the towing structure, the abutment portion, along with the pressing member 27 provided on the abutment portion, slides along the support arm 1 toward the clamping block 32. This causes the pressing member 27 to press against the end of the linkage member relative to the support arm 1, closer to the clamping block 32, under the linkage of the abutment portion. Based on the rotational connection between the linkage member and the support arm 1, the linkage member, along with the clamping block 32, rotates and presses downwards relative to the support arm 1, thereby bringing the abutment portion closer to the clamping block 32 and applying pressure to the towing mechanism 8. Locked; In the second state, when the clamping mechanism is separated from the towing structure, the abutment part together with the pressing member 27 provided on the abutment part slides along the support arm 1 in the opposite direction to the clamping block 32, and the pressing member 27 is pressed against the end of the linkage member that is closer to the support arm 1 than the clamping block 32 under the linkage of the abutment part. Based on the rotational connection between the linkage member and the support arm 1, the linkage member drives the clamping block 32 to rotate and lift relative to the support arm 1, thereby causing the abutment part to move away from the clamping block 32 and unlocking the towing mechanism 8.

[0040] The abutment portion with a pressing member 27 on its lower side is slidably connected to the support arm 1, while the linkage component with a clamping block 32 is rotatably connected to the support arm 1. Based on the upper pressing of the pressing member 27 and the linkage component, during the sliding of the abutment portion along the support arm 1, there is a first state in which the linkage component rotates and presses down relative to the support arm 1, and the clamping block 32 and the abutment portion move closer to lock together; and a second state in which the linkage component rotates and lifts relative to the support arm 1, and the clamping block 32 and the abutment portion move away to unlock. On the one hand, this optimizes the locking and unlocking steps between the clamping mechanism and the towing mechanism 8, improving the efficiency of locking and unlocking. On the other hand, through the upper pressing of the pressing member 27 and the linkage component, the abutment portion can cooperate with the clamping block 32 to complete the locking and unlocking actions during the sliding of the support arm 1, realizing automated control. Furthermore, based on the cooperation between the abutment portion and the clamping block 32 for clamping and locking, the safety and reliability of the connection between the AGV trolley 9 and the towing mechanism are greatly improved.

[0041] Specifically, to facilitate smooth sliding between the abutment and the support arm 1, a slide rail 11 is provided on the support arm 1, and a slider 24 is provided on the abutment corresponding to the slide rail 11. Furthermore, to prevent the abutment from disengaging from the track during sliding relative to the support arm 1, the slide rail 11 on the support arm 1 is preferably an "I"-shaped slide rail 11 with double tracks, and the slider 24 on the abutment slides and engages with the slide rail 11. In addition, to ensure the sliding stroke between the abutment and the support arm 1 and improve the reliability of locking and unlocking between the abutment and the clamping block 32, the slide rail 11 is set along the length direction of the support arm 1.

[0042] Specifically, the abutment part includes an abutment surface 26 and an L-shaped abutment post 2. The abutment surface 26 is used to cooperate with the clamping block 32 to lock the towing mechanism 8. The abutment post is used to slide along the support arm 1 with the abutment surface 26. The abutment surface 26 and the L-shaped abutment post 2 are fixedly connected to the side facing the clamping block 32. In order to further improve the locking stability between the clamping block 32 and the abutment part, the abutment surface 26 and the end face of the support arm 1 facing the clamping block 32 are overlapped in the horizontal direction. In order to save assembly space and improve the stability of the mechanism operation, an installation groove 21 is also provided on the side of the abutment post corresponding to the slide rail 11, and then the slider 24 is set in the installation groove 21. It is worth noting that the slider 24 and the installation groove 21 are detachably connected, which provides convenience for the maintenance of the slide rail 11 and the slider 24.

[0043] Furthermore, to facilitate smooth cooperation between the pressing member 27 and the linkage member during the sliding process of the abutment part relative to the support arm 1, the pressing member 27 includes a pressing roller, and an ear 23 is provided on the side of the abutment post facing away from the slide rail 11. The pressing roller is then rotated on the ear 23 in cooperation with the rotating shaft. When the abutment part slides relative to the support arm 1, the pressing roller can roll back and forth on the upper side of the linkage member along with the abutment post.

[0044] Preferably, to enhance the strength of the abutment portion and the clamping block 32 during the locking process, the abutment portion further includes an L-shaped reinforcing member 22 to strengthen the structure of the abutment portion. Specifically, the L-shaped reinforcing member 22 includes a first reinforcing rod 221 and a second reinforcing rod 222 integrally formed, with the first reinforcing rod 221 fixedly connected to the L-shaped abutment post 2 and the second reinforcing rod 222 fixedly connected to the abutment surface 26. In this application, the L-shaped reinforcing member 22 is fixedly disposed on the inner side of the abutment portion, that is, the first reinforcing rod 221 is fixed to the bottom wall of the mounting groove 21, and the second reinforcing rod 222 is fixed on the side of the abutment surface 26 facing the support arm 1. It can be understood that, without affecting the normal operation of the overall mechanism, the L-shaped reinforcing member 22 can also be fixed on the outer side of the abutment portion. Furthermore, this application does not impose a specific limitation on the number of L-shaped reinforcing members 22.

[0045] Furthermore, the projected area of ​​the abutment surface 26 in the horizontal direction extends beyond the L-shaped abutment post 2 to increase the contact area between the abutment surface 26 and the towing mechanism 8, thereby improving the stability of the locking between the abutment surface 26 and the clamping block 32. In addition, to prevent the portion of the abutment surface 26 that extends beyond the projection of the L-shaped abutment post 2 in the horizontal direction from being damaged by force during the locking process, the abutment part is also provided with a plurality of reinforcing ribs 25, and the plurality of reinforcing ribs 25 are fixedly disposed between the portion of the abutment surface 26 that extends beyond the projection of the L-shaped abutment post 2 in the horizontal direction and the outer wall of the L-shaped abutment post 2.

[0046] Specifically, the linkage includes a Z-shaped rod 3, and the middle part of the Z-shaped rod 3 is rotatably connected to the support arm 1. The clamping block 32 is fixedly set at the end of the Z-shaped rod 3 away from the support arm 1. When the clamping mechanism is locked with the towing mechanism 8, the abutment part slides along the support arm 1 toward the clamping block 32, and the pressing part 27 is pressed onto the upper side of the Z-shaped rod 3. Based on the structural characteristics of the Z-shaped rod 3, the abutment surface 26 on the abutment part is close to and fits against the clamping block 32 that is rotated and pressed down, so that the towing mechanism 8 is locked more firmly.

[0047] It is understandable that the linkage could also be a straight "one-line" rod, etc. Considering the reliability of the locking of the towing structure, this application prefers a Z-shaped rod 3; and, in this application, at least two Z-shaped rods 3 are included; specifically, the two Z-shaped rods 3 are respectively set on both sides of the support arm 1 and are rotatably connected to the support arm 1 through a shaft; furthermore, in order to make the linkage and clamping block 32 more stable relative to the support arm 1 during the downward or upward process, the number of pressing rollers and ears 23 are set one-to-one with the Z-shaped rods 3; then, the two pressing rollers are set corresponding to the two Z-shaped rods 3, and the two pressing rollers are rotatably connected to the ears 23 through a shaft.

[0048] Furthermore, to facilitate quick unlocking of the clamping mechanism and the towing mechanism 8, the second clamping assembly also includes a reset component 4. Specifically, a first positioning post 31 is provided at the end of the Z-shaped rod 3 away from the clamping block 32, and a second fixing post 12 is provided on the support arm 1. One end of the reset component 4 is fixedly connected to the first positioning post 31, and the other end is fixedly connected to the second fixing post 12. When the clamping mechanism and the towing structure are separated and unlocked, the abutment part, together with the pressing part 27 provided on the abutment part, slides along the support arm 1 in the opposite direction to the clamping block 32, and the pressing roller presses against the end of the Z-shaped rod 3 near the support arm 1 relative to the clamping block 32 under the linkage of the abutment part. Based on the rotational connection between the linkage and the support arm 1, under the action of the reset component 4, the Z-shaped rod 3, together with the clamping block 32, automatically rotates and lifts relative to the support arm 1, thereby causing the abutment part to move away from the clamping block 32 and unlocking the towing mechanism 8. In use, there is no specific limit to the number of reset components 4.

[0049] Preferably, the reset member 4 includes an elastic member, such as a helical spring; and in order to facilitate the fixed connection of the elastic member, multiple fixing holes are provided on the first positioning post 31 and the second positioning post respectively, so that one end of the helical spring can be fixed in the fixing hole of the first positioning post 31 and the other end can be fixed in the fixing hole of the second positioning post.

[0050] To further enable automatic locking and unlocking of the clamping mechanism and the towing structure, the clamping mechanism also includes a driving component 5. Specifically, the driving component 5 is fixedly disposed at the end of the support arm 1 away from the abutment surface 26, and the output end of the driving component 5 is fixedly connected to the abutment post of the abutment part to drive the abutment post and the abutment surface 26 to slide on the support arm 1. Preferably, the driving component 5 can be a telescopic cylinder or a screw-type stepper motor.

[0051] Specifically, in order to reasonably control the working stroke of the drive component 5 in conjunction with the abutment post, the clamping mechanism is also provided with a limiting component, which includes a first contact 61, a second contact 62 and a sensing device 6; wherein, the sensing device 6 is signal-connected to the first contact 61 and the second contact 62, and the drive component 5 is communicatively connected to the sensing device 6; more specifically, the first contact 61, the second contact 62 and the sensing device 6 are arranged on the same side, the sensing device 6 is fixedly mounted on the abutment post so as to slide relative to the support arm 1 along with the abutment post, and the first contact 61 and the second contact 62 are spaced apart on the support arm 1.

[0052] The first contact 61 is located at the end of the support arm 1 near the abutment surface 26 of the drive member 5 and serves as the starting point. The second contact 62 is located at the end of the support arm 1 near the abutment surface 26 of the drive member 5 and serves as the ending point. Specifically, when the sensing device 6 is in the position of the first contact 61, the clamping mechanism and the towing structure are in the unlocked second state. When the sensing device 6 is in the position of the second contact 62, the clamping mechanism and the towing structure are in the locked first state.

[0053] Preferably, the limiting component further includes a mounting plate 13, which has multiple spaced mounting positions. The first contact 61 and the second contact 62 are respectively positioned on the mounting positions and are detachably connected to the mounting positions. Furthermore, by adjusting the first contact 61 and the second contact 62 on the mounting positions, the sliding stroke of the abutment column on the support arm 1 can be precisely controlled, thereby enabling adjustment of the locking tightness between the clamping mechanism and the towing structure.

[0054] When the clamping mechanism is engaged with the towing structure, the user controls the drive unit 5 to operate via the switch device 51. Under the action of the drive unit 5, the abutment post moves the sensing device 6 from the first contact point 61 towards the second contact point 62. When the sensing device 6 moves to the second contact point 62 along with the abutment post, the sensing device 6 stops operating, and then the clamping mechanism is engaged with the towing structure. When the clamping mechanism is engaged with the towing structure, the user controls the drive unit 5 to operate via the switch device 51. Under the action of the drive unit 5, the abutment post moves the sensing device 6 from the second contact point 62 towards the first contact point 61. When the sensing device 6 moves to the first contact point 61 along with the abutment post, the sensing device stops operating. The device 6 controls the drive unit 5 to stop operating, and then the clamping mechanism and the towing structure are unlocked. The switch device 51 can be a physical controller installed on the drive unit 5 or a wireless control APP software. In addition, the clamping mechanism also includes a protective shell 14 to protect the support arm 1 and the components installed on the support arm 1. The protective shell 14 covers the support arm 1 and the components installed on the support arm 1 and is detachably connected to the support arm 1. Furthermore, when the switch device 51 is a physical controller, a corresponding mounting hole 141 is opened on the protective shell 14, so that the switch device 51 part installed on the drive unit 5 can be exposed through the mounting hole 141 for operation by the operator.

[0055] An AGV (Automated Guided Vehicle) includes a vehicle body and a clamping mechanism as described above, with a support arm 1 mounted on the vehicle body. To facilitate angle adjustment of the AGV 9 during connection with a towing structure using the clamping mechanism, the clamping mechanism further includes a rotating device 7, which is mounted on the AGV 9, and the support arm 1 is fixedly connected to the rotating device 7. Under the action of the rotating device 7, the support arm 1 and its components can rotate to any angle. Specifically, the rotating device 7 includes a motor and a turntable, with the motor mounted on the AGV 9, the turntable fixedly connected to the motor's output end, and the support arm 1 fixedly connected to the turntable. Figure 3 As shown, the towing mechanism 8 can be a small trailer or a small trailer, which can be selected according to actual needs and uses, or it can be a pallet truck with wheels as described in this application.

[0056] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A clamping mechanism, characterized in that, include: support arm, The first clamping assembly includes a crimping member and an abutment portion. The abutment portion is disposed on the support arm and slides with the support arm. The crimping member is disposed on the side of the abutment portion facing away from the support arm. The second clamping assembly includes a linkage and a clamping block. The linkage is rotatably connected to the support arm, and the lower side of the linkage away from the support arm is fixedly connected to the clamping block. The pressing member is pressed against the upper side of the linkage member, and the abutting part slides along the support arm. It has a first state in which the linkage member rotates and presses down relative to the support arm, and the clamping block moves closer to the abutting part and locks together. It also has a second state in which the linkage member rotates and lifts relative to the support arm, and the clamping block moves away from the abutting part and unlocks. The support arm is provided with a slide rail, and the abutment part is provided with a slider corresponding to the slide rail, and the slider slides and engages with the slide rail. The abutting part includes an abutting surface and an L-shaped abutting post. The abutting surface and the L-shaped abutting post are fixedly connected to the side facing the clamping block, and the abutting surface coincides with the horizontal projection of the end face of the support arm facing the clamping block. The abutment post has a mounting groove on one side corresponding to the slide rail, and the slider is disposed in the mounting groove.

2. The clamping mechanism according to claim 1, characterized in that, The pressing component includes a pressing roller, and the L-shaped abutment post has an ear on the side facing away from the slide rail. The pressing roller is rotatably connected to the ear.

3. The clamping mechanism according to claim 1, characterized in that, The abutment portion further includes an L-shaped reinforcing member, which comprises a first reinforcing rod and a second reinforcing rod. Furthermore, the first reinforcing rod is fixedly connected to the L-shaped abutment post, and the second reinforcing rod is fixedly connected to the abutment surface.

4. The clamping mechanism according to claim 1, characterized in that, The linkage component includes a Z-shaped rod. The middle part of the Z-shaped rod is rotatably connected to the support arm, and the clamping block is fixedly connected to the end of the Z-shaped rod away from the support arm.

5. The clamping mechanism according to claim 4, characterized in that, The second clamping assembly also includes a reset element. The Z-shaped rod has a first fixing post at its end away from the clamping block, and a second fixing post is provided on the support arm. One end of the reset member is fixedly connected to the first fixing post, and the other end is fixedly connected to the second fixing post. The reset element includes an elastic element.

6. The clamping mechanism according to claim 1, characterized in that, It also includes a driving component, which is fixedly mounted on the support arm and its output end is connected to the abutment portion to drive the abutment portion to slide on the support arm.

7. The clamping mechanism according to claim 6, characterized in that, It also includes a limiting component, which includes a first contact, a second contact, and a sensing device, wherein the sensing device is signal-connected to the first contact and the second contact; The first contact, the second contact, and the sensing device are disposed on the same side, and the sensing device is fixedly disposed on the abutment portion. The first contact and the second contact are disposed at intervals on the support arm. The sensing device is communicatively connected to the driving component.

8. An AGV (Automated Guided Vehicle) trolley, characterized in that, It includes a vehicle body and a clamping mechanism as described in any one of claims 1-7, wherein the support arm is disposed on the vehicle body.

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