Stop device

Abstract

The utility model belongs to the technical field of stop structures, and discloses a stop device. The stopping device comprises a supporting mechanism, a buffering mechanism and a locking mechanism. The supporting mechanism comprises a supporting piece, a driving piece and a first connecting piece, the driving piece is connected to the first connecting piece to drive the supporting piece to slide in the sliding groove, and the first connecting piece is connected to the conveying device; the buffering mechanism comprises an energy absorption piece, a second connecting piece and a first elastic piece, the second connecting piece is slidably connected to the supporting piece, after the tray collides with the buffering mechanism, the second connecting piece compresses the energy absorption piece and the first elastic piece to move to a compression position for stopping the tray, and the first elastic piece can push the second connecting piece to a locking position; the locking mechanism comprises a locking piece and a second elastic piece, the locking piece is rotationally connected to the supporting piece, and the second elastic piece is configured to push the locking piece to lock the second connecting piece to the locking position. According to the stopping device, the stopping precision of the tray can be improved, and the machining efficiency of automatic assembly line work is improved.

Description

A stopping device Technical Field

[0001] This utility model relates to the field of stop structure technology, and in particular to a stop device. Background Technology

[0002] In the automated production line operations of modern factories, the stop mechanism is a key component for positioning pallets or carriers. The stop mechanism can stop the pallet, slowing it down, halting its movement, and allowing it to proceed. The effectiveness of the stop mechanism in stopping the pallet directly affects the efficiency of the automated production line operation.

[0003] Existing stopping mechanisms have limited height limits, which reduces processing quality and efficiency. For example, with taller pallets, stopping the pallet can cause it to tip over, resulting in the workpiece falling and being damaged, thus reducing processing efficiency and quality. For pallets with open bottoms, the pallet may pass through the stopping mechanism, leading to incorrect pallet positioning and further reducing processing efficiency and quality. Summary of the Invention

[0004] The purpose of this utility model is to provide a stop device to improve the effect of the stop tray and improve the efficiency of automated production line operation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A stop device for stopping a pallet on a transport device, comprising:

[0007] The support mechanism includes a support member, a drive member, and a first connecting member with a groove. The drive member is connected to the bottom end of the first connecting member and can drive the support member to slide in the groove along a first direction. The first connecting member can be connected to the transport device.

[0008] The buffer mechanism includes an energy-absorbing member, a second connecting member, and a first elastic member connected to the energy-absorbing member. The second connecting member is slidably connected to the support member along a second direction, which is perpendicular to the first direction. The first elastic member is disposed between the energy-absorbing member and the second connecting member. The tray can impact the buffer mechanism so that the second connecting member drives the energy-absorbing member and the first elastic member to a position that stops the compression of the tray. The first elastic member can push the second connecting member to a locked position.

[0009] The locking mechanism includes a locking member and a second elastic member, the locking member being rotatably connected to the support member, and the second elastic member being configured to push the locking member to lock the second connector in the locked position.

[0010] The aforementioned stop device, wherein the buffer mechanism further includes a rotating member, which is rotatably connected to the end of the second connecting member away from the energy-absorbing member, and the rotating member can protrude from the support member to roll on the tray to reduce impact.

[0011] In the aforementioned stop device, the support member has a receiving hole, at least a portion of the first elastic member is disposed in the receiving hole, the second connecting member includes a large end, a small end and a protective sleeve connected together, the large end can slide in the receiving hole to compress the first elastic member, the small end is connected to the protective sleeve, and the rotating member is rotatably connected inside the protective sleeve.

[0012] The aforementioned stop device further includes two limiting plates with guide grooves in the support member, the second connecting member being disposed between the two limiting plates, and the buffer mechanism further includes a limiting rod passing through the small end. The limiting rod can slide in the guide groove along the second direction to limit the second connecting member.

[0013] In the aforementioned stop device, after the top end of the locking member abuts against the outer peripheral surface of the small end, the side of the locking member can abut against the end face of the large end near the small end to lock the buffer mechanism.

[0014] The aforementioned stopping device further includes a fixing member that passes through the support member and the second elastic member that is wrapped around the fixing member. One end of the second elastic member is engaged with the support member, and the other end abuts against the locking member, which can push the locking member to rotate to abut against the second connecting member.

[0015] In the aforementioned stop device, the locking member is rotatably connected to the support member via a rotating pin. The locking member has a locking part and a reset part connected to each other. The locking part and the reset part are arranged at an angle. The second elastic member abuts against the locking part, enabling the locking member to rotate around the rotating pin.

[0016] In the aforementioned stop device, the first connecting member has a reset port, and a reset pin is fixedly connected to the reset part. The support member drives the buffer mechanism to slide into the reset port, and the support member can push against the reset pin, so that the locking member rotates around the rotating pin to compress the second elastic member.

[0017] The aforementioned stop device is characterized in that the first connecting member is connected to a movable seat, which is slidably connected to the transport device to adjust the position of the buffer mechanism relative to the transport device; or, the movable seat is rotatably connected to the transport device to adjust the position of the buffer mechanism relative to the transport device.

[0018] In the aforementioned stop device, the bottom surface of the movable seat is provided with a slider, and the transport device includes a sliding groove in which the slider can slide.

[0019] The beneficial effects of this utility model are:

[0020] The stopping device provided by this utility model includes a support member and a first connecting member. The first connecting member is used to connect to the transport device, and the support member is used to support the buffer mechanism. The support member moves within the slide groove along a first direction, which can drive the buffer mechanism to move along the first direction, i.e., the vertical direction. Therefore, the buffer mechanism can rise and fall vertically to adapt to pallets of different heights, improving processing efficiency. Furthermore, the locking mechanism can lock the buffer mechanism to prevent it from impacting the pallet, improving the stopping accuracy of the pallet and further increasing processing efficiency. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the stop device provided in an embodiment of the present utility model;

[0022] Figure 2 is an enlarged view of point A in Figure 1;

[0023] Figure 3 is a schematic diagram of the buffer mechanism provided in an embodiment of the present invention;

[0024] Figure 4 is a structural schematic diagram of the second connector provided in an embodiment of the present utility model;

[0025] Figure 5 is a structural schematic diagram of the first connector provided in an embodiment of the present utility model;

[0026] Figure 6 is a structural schematic diagram of the support member provided in an embodiment of this utility model;

[0027] Figure 7 is a cross-sectional schematic diagram of a portion of the stop device provided in an embodiment of this utility model.

[0028] In the picture:

[0029] 1. Support mechanism; 11. Support component; 111. Accommodating hole; 112. Limiting plate; 1121. Guide groove; 12. Driving component; 13. First connecting component; 131. Slide groove; 132. Reset port;

[0030] 2. Buffer mechanism; 21. Energy-absorbing component; 22. Second connecting component; 221. Large end; 222. Small end; 2221. Limiting through hole; 23. First elastic component; 24. Rotating component; 25. Protective sleeve; 251. Rotating groove; 26. Limiting rod;

[0031] 3. Locking mechanism; 31. Locking element; 32. Second elastic element;

[0032] 4. Fasteners;

[0033] 5. Rotating pin;

[0034] 6. Reset pin;

[0035] 7. Movable seat; 71. Slider;

[0036] 8. Tighten the nut. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0041] The present invention provides a stop device that improves the effect of the stop tray and increases the operating efficiency of the automated production line.

[0042] As shown in Figures 1 to 7, the stop device includes a support mechanism 1, a buffer mechanism 2, and a locking mechanism 3. The support mechanism 1 includes a support member 11, a drive member 12, and a first connecting member 13 with a slide groove 131. The drive member 12 is connected to the bottom end of the first connecting member 13 and can drive the support member 11 to slide in the slide groove 131 along a first direction. The first connecting member 13 can be connected to a transport device. The buffer mechanism 2 includes an energy-absorbing member 21, a second connecting member 22, and a first elastic member 23 connected to the energy-absorbing member 21. The second connecting member 22 is slidably connected to the support member 11 along a second direction, which is perpendicular to the first direction. The first elastic member 23 is disposed between the energy-absorbing member 21 and the second connecting member 22. The tray can impact the buffer mechanism 2 so that the second connecting member 22 drives the energy-absorbing member 21 and the first elastic member 23 to the compression position of the tray. The first elastic member 23 can push the second connecting member 22 to the locking position. The locking mechanism 3 includes a locking member 31 and a second elastic member 32. The locking member 31 is rotatably connected to the support member 11. The second elastic member 32 is configured to push the locking member 31 to lock the second connecting member 22 in the locking position. The first direction is shown as the X direction in Figure 1, and the second direction is shown as the Y direction in Figure 1.

[0043] The stopping device provided by this utility model includes a support member 11 and a first connecting member 13. The first connecting member 13 is used to connect to the transport device, and the support member 11 is used to support the buffer mechanism 2. The support member 11 moves within the slide groove 131 along a first direction, which can drive the buffer mechanism 2 to move along the first direction, i.e., the vertical direction. Therefore, the buffer mechanism 2 can rise and fall in the vertical direction to adapt to pallets of different heights and improve processing efficiency. Furthermore, the locking mechanism 3 can lock the buffer mechanism 2 to prevent the buffer mechanism 2 from hitting the pallet, improve the stopping accuracy of the pallet, and improve processing efficiency.

[0044] This embodiment does not specifically limit the shape of the slide groove 131, as long as the support member 11 can slide within the slide groove 131 along the first direction. For example, the slide groove 131 is a rectangular groove, and the support member 11 is a rectangular block. The support member 11 slides within the slide groove 131, which can prevent torsion and improve stability.

[0045] In this embodiment, two first connectors 13 are provided. The first connectors 13 are adjustablely connected to the transport device, facilitating the adjustment of the position of the first connectors 13 relative to the transport device. Adjusting the position of the two first connectors 13 relative to the transport device can stop pallets of different sizes, improving the versatility of the stopping device. At the same time, the two buffer mechanisms 2 simultaneously abut against the pallets at symmetrical positions, so that the pallets are subjected to balanced forces, preventing deflection and improving stability.

[0046] In other embodiments, three or more first connectors 13 may be provided to provide a better stopping effect.

[0047] It should be noted that the energy-absorbing component 21 is a conventional impact-reducing element in the art, and its structure, connection method and working method are all conventional settings, which will not be described in detail here.

[0048] In this embodiment, the first connecting member 13 is connected to a movable seat 7, which is slidably connected to the transport device to adjust the position of the buffer mechanism 2 relative to the transport device; or, the movable seat 7 is rotatably connected to the transport device to adjust the position of the buffer mechanism 2 relative to the transport device. When the first connecting member 13 does not slide smoothly relative to the transport device, the movable seat 7 can be replaced, improving maintenance efficiency and reducing maintenance costs.

[0049] Specifically, referring to Figure 1, the bottom surface of the movable seat 7 is provided with a slider 71, and the transport device includes a sliding groove, in which the slider 71 can slide. The slider 71 slides within the sliding groove, and the sliding groove can limit the slider 71, thereby improving the stability of the movable seat 7 sliding relative to the transport device.

[0050] In other embodiments, the movable seat 7 may have a sliding groove, and the transport device may have a slider 71.

[0051] For example, the movable seat 7 is fixedly connected to the bottom of the first connector 13 by existing bolts, and the bolt connection is secure and easy to disassemble.

[0052] To further improve the effectiveness of stopping the pallet, the buffer mechanism 2 also includes a rotating member 24, which is rotatably connected to the end of the second connecting member 22 away from the energy-absorbing member 21. The rotating member 24 can protrude from the support member 11 to roll on the pallet to reduce impact. When the pallet hits the stopping device, it first hits the rotating member 24, which rotates around its own axis to roll relative to the pallet, reducing the impact of the pallet on the stopping device.

[0053] The second connector 22 can be slidably connected to the interior of the support member 11 or to the surface of the support member 11. For example, the second connector 22 is slidably connected to the interior of the support member 11, which reduces space occupation and processing costs. Specifically, referring to Figures 1 to 3, the support member 11 has a receiving hole 111, and at least a portion of the first elastic member 23 is disposed within the receiving hole 111. The second connector 22 includes a large end 221, a small end 222, and a protective sleeve 25 connected together. The large end 221 can slide within the receiving hole 111 to compress the first elastic member 23. The small end 222 is connected to the protective sleeve 25, and a rotating member 24 is rotatably connected within the protective sleeve 25. The receiving hole 111 can limit the second connector 22 and the first elastic member 23, improving the stopping effect on the tray.

[0054] Specifically, the second connector 22 is a stepped shaft, with the larger diameter end being the large end 221 and the smaller diameter end being the small end 222. A clearance groove is provided on the side of the large end 221 near the receiving hole 111. During the sliding process of the second connector 22 towards the energy-absorbing member 21, the first elastic member 23 is located within the clearance groove. The bottom of the clearance groove compresses the first elastic member 23, ensuring that the second elastic member 32 remains within the receiving hole 111, preventing the second connector 22 from pushing the first elastic member 23 out of the receiving hole 111 and improving stability.

[0055] The first elastic element 23 can be an existing spring, which is easy to obtain.

[0056] The protective sleeve 25 can be integrally formed with the second connector 22, or it can be a separate design. In this embodiment, the protective sleeve 25 and the second connector 22 are integrally formed for easy installation.

[0057] In other embodiments, the protective sleeve 25 can be threaded or snapped to the small end 222 of the second connector 22. The specific connection method can be selected according to the processing needs, ensuring that the second connector 22 and the protective sleeve 25 can be connected and fixed and can be separated, so as to facilitate maintenance.

[0058] The rotating component 24 can be disposed inside or outside the protective sleeve 25. For example, referring to Figures 2 and 4, a rotating groove 251 is provided at the end of the protective sleeve 25 away from the second connector 22. The rotating component 24 is installed in the rotating groove 251. The rotating groove 251 and the rotating component 24 are connected by a rotating shaft, which facilitates the connection.

[0059] Specifically, the rotating component 24 can be a bearing, with the rotating shaft and the inner ring of the bearing having an interference fit, allowing the rotating component 24 to rotate relative to the rotating shaft. External threads are provided at both ends of the rotating shaft, and a locking nut 8 is screwed onto the rotating shaft to fix the rotating shaft and the protective sleeve 25, ensuring that the rotating component 24 rotates relative to the protective sleeve 25 and reducing the impact of the tray on the buffer mechanism 2.

[0060] To prevent the outer surface of the rotating component 24 from sinking into the support component 11, the buffer mechanism 2 cannot buffer the tray. Referring to Figures 1, 3, and 6, the support component 11 also includes two limiting plates 112 with guide grooves 1121. The second connecting component 22 is disposed between the two limiting plates 112. The buffer mechanism 2 also includes a limiting rod 26, which passes through the limiting through hole 2221 of the small end 222. The limiting rod 26 can slide in the guide groove 1121 along the second direction to limit the second connecting component 22. The limiting rod 26 can abut against the bottom of the guide groove 1121 to limit the small end 222, ensuring that the outer surface of the rotating component 24 is aligned with the outer surface of the support component 11, and reducing the friction between the tray and the support component 11.

[0061] The locking member 31 can lock the second connecting member 22 in the locked position. In this embodiment, referring to Figures 1 and 2, the stopping device also includes a fixing member 4, which passes through the support member 11. The second elastic member 32 is wrapped around the fixing member 4, with one end engaged with the support member 11 and the other end abutting against the locking member 31, which can push the locking member 31 to rotate and press against the second connecting member 22. The locking member 31 is pushed by the elastic force of the second elastic member 32, eliminating the need for an additional driving member 12, resulting in a simple structure.

[0062] Specifically, referring to Figure 2, the support member 11 has a V-shaped groove. One end of the second elastic member 32 is engaged with one side of the V-shaped groove, and the other end extends along the other side of the V-shaped groove to push the locking member 31 to rotate. The second elastic member 32 can be an existing steel bar, which is easy to obtain and easy to wind.

[0063] For example, referring to FIG2, the locking member 31 is rotatably connected to the support member 11 via a rotating pin 5. The locking member 31 has a locking part and a reset part connected to each other, and the locking part and the reset part are arranged at an angle. The second elastic member 32 abuts against the locking part, which allows the locking member 31 to rotate around the rotating pin 5. The angle between the locking part and the reset part can reduce the rotation angle of the locking member 31.

[0064] The included angle between the locking part and the reset part is 100-150°, for example, 100°, 110°, 120°, 130° or 140°. Preferably, the included angle between the locking part and the reset part is 110°.

[0065] Specifically, the locking part has an arc-shaped groove. When the locking part abuts against the second connector 22, the arc-shaped groove fits against the outer surface of the small end 222, reducing impact force and improving stability.

[0066] Referring to Figures 1, 3, 6, and 7, during the process of the tray impacting the rotating member 24 and compressing the first elastic member 23, the second elastic member 32 constantly pushes against the locking member 31. When the large end 221 slides from the receiving hole 111 towards the energy-absorbing member 21, the locking member 31 always pushes against the outer surface of the large end 221, thus preventing rotation. When the large end 221 has completely slid into the receiving hole 111, the second elastic member 32 pushes the locking member 31 to rotate to the position where it abuts against the outer surface of the small end 222. The second connecting member 22 continues to slide until the limiting rod 26 abuts against the guide groove 1121, at which point the second connecting member 22 stops sliding. At this time, the outer surface of the rotating member 24 and the outer surface of the support member 11 are aligned, i.e., the compression position, and the tray stops against the outer surface of the support member 11.

[0067] In this embodiment, referring to Figures 3 and 7, after the top end of the locking member 31 abuts against the outer peripheral surface of the small end 222, the side of the locking member 31 can abut against the end face of the large end 221 near the small end 222 to lock the buffer mechanism 2. This ensures the positioning accuracy of the rotating member 24 and improves processing efficiency.

[0068] In the compressed position, the tray is stopped and removed. The first elastic element 23 resets to push the second connecting element 22 away from the energy-absorbing element 21, and the end face of the large end 221 near the small end 222 abuts against the locking element 31, and the buffer mechanism 2 is locked. At this time, the outer surface of the rotating element 24 protrudes slightly from the outer surface of the support element 11, i.e., the locked position.

[0069] To ensure the buffer mechanism 2 is in its initial position, with the outer surface of the rotating member 24 protruding beyond the outer surface of the support member 11, and to guarantee that the pallet can absorb more impact after striking the buffer mechanism 2, as shown in Figures 1, 2, and 5, the first connecting member 13 has a reset port 132, and a reset pin 6 is fixedly connected to the reset part. The support member 11 drives the buffer mechanism 2 to slide into the reset port 132, and the support member 11 can push against the reset pin 6, causing the locking member 31 to rotate around the rotating pin 5 to compress the second elastic member 32. This avoids the second connecting member 22, keeping it away from the support member 11, increasing the buffer distance, and absorbing more impact.

[0070] Specifically, the driving component 12 is a cylinder. When the driving component 12 extends, it causes the support component 11 to move upward. When the driving component 12 retracts, it causes the support component 11 to descend. When the support component 11 moves downward, it causes the locking mechanism 3 to move downward. The reset pin 6 falls into the reset port 132 and abuts against the bottom of the reset port 132, causing the locking component 31 to rotate to compress the second elastic component 32, avoiding the large end 221 of the second connecting component 22, and causing the second connecting component 22 to move away from the energy-absorbing component 21.

[0071] It should be noted that during the rotation of the locking component 31, the reset pin 6 will be displaced in the horizontal direction. Therefore, the size of the reset port 132 is larger than the outer diameter of the reset pin 6 to ensure that the reset pin 6 can fall into the reset port 132.

[0072] The working process of the stop device provided by this utility model is as follows: Adjust the position of the movable seat 7 so that the pallet can impact the stop device. The pallet approaches the stop device along the second direction on the transport device and first impacts the rotating member 24. The rotating member 24 rotates to reduce the impact force of the pallet. The pallet pushes the rotating member 24, causing the second connecting member 22 to move towards the energy-absorbing member 21. The energy-absorbing member 21 absorbs the kinetic energy of the pallet, causing it to stop against the surface of the support member 11. At this time, the buffer mechanism 2 is in the compressed position, and the second elastic member 32 resets and pushes the locking member 31 to rotate so as to fit against the outer surface of the small end 222 of the second connecting member 22. After the pallet is lifted by the lifting mechanism (not shown in the figure), the first elastic member 23 resets and pushes the second connecting member 22 away from the energy-absorbing member 21 to the locked position. The pallet descends again and rotates with the rotating member 24, reducing friction on the support member 11. When a pallet needs to be released, the cylinder drives the support member 11 to move down, and the reset pin 6 falls into the reset port 132 to abut against the support member 11, causing the locking member 31 to rotate and compress the second elastic member 32 to avoid the large end 221 of the second connecting member 22. The first elastic member 23 pushes the second connecting member 22 to the initial position. After the pallet passes, the cylinder drives the support member 11 to move up, ready to stop the next pallet.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stop device for stopping a pallet on a transport device, characterized in that, include: The support mechanism (1) includes a support member (11), a drive member (12), and a first connecting member (13) with a slide groove (131). The drive member (12) is connected to the bottom end of the first connecting member (13) and can drive the support member (11) to slide in the slide groove (131) along a first direction. The first connecting member (13) can be connected to the transport device. A buffer mechanism (2) includes an energy-absorbing member (21), a second connecting member (22), and a first elastic member (23) connected to the energy-absorbing member (21). The second connecting member (22) is slidably connected to the support member (11) along a second direction, which is perpendicular to the first direction. The first elastic member (23) is disposed between the energy-absorbing member (21) and the second connecting member (22). The tray can impact the buffer mechanism (2) so that the second connecting member (22) drives the energy-absorbing member (21) and the first elastic member (23) to a position that stops the compression of the tray. The first elastic member (23) can push the second connecting member (22) to a locked position. A locking mechanism (3) includes a locking member (31) and a second elastic member (32). The locking member (31) is rotatably connected to the support member (11). The second elastic member (32) is configured to push the locking member (31) to lock the second connecting member (22) in the locked position.

2. The stopping device according to claim 1, characterized in that, The buffer mechanism (2) further includes a rotating member (24), which is rotatably connected to the end of the second connector (22) away from the energy-absorbing member (21). The rotating member (24) can protrude from the support member (11) to roll on the tray to reduce impact.

3. The stopping device according to claim 2, characterized in that, The support member (11) has a receiving hole (111), and at least part of the first elastic member (23) is disposed in the receiving hole (111). The second connecting member (22) includes a large end (221), a small end (222), and a protective sleeve (25) connected together. The large end (221) can slide in the receiving hole (111) to compress the first elastic member (23). The small end (222) is connected to the protective sleeve (25), and the rotating member (24) is rotatably connected inside the protective sleeve (25).

4. The stopping device according to claim 3, characterized in that, The support member (11) further includes two limiting plates (112) with guide grooves (1121). The second connecting member (22) is disposed between the two limiting plates (112). The buffer mechanism (2) further includes a limiting rod (26). The limiting rod (26) passes through the small end (222). The limiting rod (26) can slide in the guide groove (1121) along the second direction to limit the second connecting member (22).

5. The stopping device according to claim 3, characterized in that, After the top end of the locking member (31) abuts against the outer peripheral surface of the small end (222), the side of the locking member (31) can abut against the end face of the large end (221) near the small end (222) to lock the buffer mechanism (2).

6. The stopping device according to claim 1, characterized in that, It also includes a fixing member (4), which passes through the support member (11). The second elastic member (32) is wrapped around the fixing member (4), with one end engaged with the support member (11) and the other end abutting against the locking member (31), which can push the locking member (31) to rotate to abut against the second connecting member (22).

7. The stop device according to claim 6, characterized in that, The locking member (31) is rotatably connected to the support member (11) via a rotating pin (5). The locking member (31) has a locking part and a reset part connected to each other. The locking part and the reset part are arranged at an angle. The second elastic member (32) pushes against the locking part, so that the locking member (31) can rotate around the rotating pin (5).

8. The stop device according to claim 7, characterized in that, The first connector (13) has a reset port (132), and a reset pin (6) is fixedly connected to the reset part. The support member (11) drives the buffer mechanism (2) to slide into the reset port (132). The support member (11) can push against the reset pin (6), so that the locking member (31) rotates around the rotating pin (5) to compress the second elastic member (32).

9. The stopping device according to any one of claims 1-8, characterized in that, The first connector (13) is connected to a movable seat (7), which is slidably connected to the transport device to adjust the position of the buffer mechanism (2) relative to the transport device; or, the movable seat (7) is slidably connected to the transport device to adjust the position of the buffer mechanism (2) relative to the transport device.

10. The stop device according to claim 9, characterized in that, The bottom surface of the movable seat (7) is provided with a slider (71), and the transport device includes a sliding groove, wherein the slider (71) can slide in the sliding groove.

Images