Anti-back elastic structure for industrial safety lock

Abstract

The invention relates to the technical field of safety locks, and particularly discloses an anti-retreating elastic structure for an industrial safety lock, which comprises a locking part, a triggering part and an anti-retreating part. The locking part comprises a lock head and a lock rod, the lock head is fixedly connected with one end of the lock rod, the peripheral wall of the lock rod is connected with a connecting piece, and a connecting gap is distributed in the connecting piece. One end of the trigger part is located in the connecting gap and abuts against the connecting piece, and the middle of the trigger part is rotationally connected with the lock shell. The end, away from the locking part, of the triggering part is connected with one end of the anti-retreating part, and the other end of the anti-retreating part is close to the lock rod and can abut against the end, close to the lock head, of the connecting piece. The industrial safety lock has the effect that the probability of lock retreating caused by lock body loosening of the industrial safety lock is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of safety locks, and in particular to an anti-retraction elastic structure for industrial safety locks. Background Art

[0002] Industrial safety locks are special types of locks used in industrial environments. Their main purpose is to ensure the safety of the workplace. They are widely used in various situations where it is necessary to ensure that equipment or systems are not operated or opened by unauthorized personnel.

[0003] The internal structure of traditional industrial safety locks is generally a one-way transmission structure. Therefore, during long-term use, the distance between the parts in the safety lock will increase due to external vibrations, impacts, and external temperature changes, causing the lock body to loosen, thereby greatly increasing the probability of unlocking. Summary of the invention

[0004] In order to reduce the probability of the industrial safety lock being unlocked due to the loosening of the lock body, the present application provides an anti-retraction elastic structure for the industrial safety lock.

[0005] The anti-retraction elastic structure for industrial safety locks provided in this application adopts the following technical solution: An anti-retraction elastic structure for an industrial safety lock, comprising: The locking part includes a lock head and a lock rod, wherein the lock head is used to lock the safety lock, the lock head is fixedly connected to one end of the lock rod, the peripheral wall of the lock rod is connected to a connecting piece, and a connecting gap is arranged inside the connecting piece; A trigger part, one end of which is located in the connection gap, and a middle part of the trigger part is rotatably connected to the lock housing; The anti-retreat portion has one end connected to an end of the trigger portion away from the locking portion, and the other end of the anti-retreat portion can abut against an end of the connecting member close to the lock head.

[0006] By adopting the above technical solution, when the industrial safety lock is in use, the trigger part controls the movement of the lock head in the locking part, thereby realizing the locking of the safety lock. At the same time, the trigger part can also be connected to the anti-retraction part while being connected to the locking part. When the trigger part drives the safety lock to be locked, the anti-retraction part can abut against the connecting piece on the lock rod in the locking part, thereby keeping the lock head in a locked state. The working state of the anti-retraction part is controlled by the locked state of the lock head, thereby realizing the locking state of the lock head, reducing the probability of the industrial safety lock being loosened during use, and finally reducing the probability of the industrial safety lock being unlocked due to the loosening of the lock body.

[0007] Optionally, the connecting member includes a first connecting ring and a second connecting ring, the first connecting ring is fixedly connected to the peripheral wall of the locking rod, the second connecting ring is slidably connected to the peripheral wall of the locking rod, the second connecting ring is spaced apart from the first connecting ring and is located at one end of the first connecting ring close to the locking head, and an abutment spring is connected to the side of the second connecting ring facing away from the first connecting ring, one end of the abutment spring is connected to the second connecting ring, and the other end of the abutment spring abuts the locking head.

[0008] By adopting the above technical solution, the first connecting ring is fixedly connected to the peripheral wall of the lock rod, and the second connecting ring is connected to the peripheral wall of the lock rod by sliding, so that the connecting member can be moved and adjusted to a certain extent relative to the lock rod, thereby increasing the flexibility and adaptability of the trigger member. The second connecting ring is arranged at intervals from the first connecting ring and is located at one end close to the lock head, ensuring that the lock rod will not be fixed or stuck when moving, thereby ensuring the normal operation of the lock. The abutment spring is connected to one side of the second connecting ring, and the other end thereof abuts against the lock head, so that the abutment spring can apply pressure, so that the force applied by the trigger member can be normally transmitted to the locking part, thereby enhancing the stability and safety of the lock.

[0009] Optionally, the trigger part includes a key trigger, a rotating hub and a lock trigger, the key trigger, the rotating hub and the lock trigger are all rotatably connected to the lock shell and the rotating axis is parallel to the layout direction of the lock hole, one side of the key trigger is arranged close to the lock hole, the other side of the key trigger is connected to one side of the rotating hub, the other side of the rotating hub is connected to one end of the lock trigger, and the other end of the lock trigger is arranged in the connection gap.

[0010] By adopting the above technical solution, the key trigger, the rotating hub and the lock trigger are interconnected to form an integrated trigger structure, which simplifies the operation steps, reduces possible failure points, and improves overall reliability and durability. One side of the key trigger is arranged close to the keyhole, and one end of the lock trigger is arranged in the connection gap. This arrangement allows the various components of the trigger part to maintain a stable connection and reduces the probability of loosening or failure during operation. The rotating hub connects the key trigger and the lock trigger, so that during the process of inserting and rotating the key, the lock trigger can drive the lock rod to move in the connection gap.

[0011] Optionally, the anti-return part includes an anti-return part and a reset part, one end of the anti-return part can abut against an end of the connecting part close to the lock head, and the other end of the anti-return part is slidably connected to the lock shell in a direction parallel to the abutment surface between the anti-return part and the connecting part, one end of the reset part is connected to an end of the anti-return part away from the connecting part, and the other end of the reset part is connected to the trigger part, and the reset part can move the anti-return part in a direction away from the locking rod.

[0012] By adopting the above technical solution, the anti-return member prevents the connecting member from being unlocked or moved by abutting against one end of the connecting member close to the lock head. The anti-return member prevents the lock head from being accidentally unlocked under normal operation. The other end of the anti-return member is slidably connected to the lock shell in a direction parallel to the abutment surface of the anti-return member and the connecting member. This connection method forms a stable connection between the anti-return member and the lock shell, while allowing the anti-return member to move freely when needed. The reset member is connected to the end of the anti-return member that is away from the connecting member and is connected to the other end of the trigger part. After unlocking, the reset member can move the anti-return member in a direction away from the locking rod, so that the anti-return part can be put back in place and ready for the next locking. The anti-return part prevents the lock head from being accidentally unlocked after being locked, and can be effectively reset after unlocking, thereby improving the operational reliability and safety of the industrial safety lock.

[0013] Optionally, the anti-retraction member is provided with a sliding slope at one end facing the lock head, the sliding slope is arranged in the direction of the connecting member, and the sliding slope is provided with a hook groove at one end facing away from the lock head, and the groove wall of the hook groove can abut against the end of the connecting member close to the lock head.

[0014] By adopting the above technical solution, the presence of the sliding bevel makes it easier for the connector to slide into the hook groove and be abutted by the wall of the hook groove. The abutment of the hook groove further increases the stability during unlocking, so that the unlocking action can be completed only when necessary, thereby reducing the probability of unlocking. The sliding bevel and the hook groove make the unlocking action more controllable, and the user can more accurately control the timing and strength of unlocking, thereby improving the safety and accuracy of the operation. The wall of the hook groove abuts against the end of the connector close to the lock head, ensuring a stable connection between the connector and the anti-retraction member, reducing the probability of loosening or falling off during the unlocking process, thereby ensuring the reliability and durability of the industrial safety lock.

[0015] Optionally, the reset member includes a trigger end and a clamping end, the reset member is slidably connected to the lock housing along a direction perpendicular to the lock rod, the trigger end is provided with engaging teeth, the engaging teeth engage with the end of the lock head trigger member facing away from the lock rod, and the clamping end is provided with a clamping interface, the clamping interface abuts against the end of the anti-retraction member facing away from the lock head from the layout direction of the lock rod and perpendicular to the layout direction of the lock rod.

[0016] By adopting the above technical solution, the reset member is designed so that it can be slidably connected to the lock shell in a direction perpendicular to the lock rod, so that when unlocking, the reset member can effectively move the anti-return member in a direction away from the lock rod, put the lock back into the unlocked state, and realize the reset function of the lock. The trigger end is provided with meshing teeth that engage the lock head trigger member, ensuring the stable connection between the reset member and the lock head trigger part, and ensuring the accuracy and stability of the unlocking action. The clamping end is provided with a clamping interface, which abuts against the end of the anti-return member away from the lock head from the direction in which the lock rod is arranged and perpendicular to the direction in which the lock rod is arranged, so that the reset member can effectively clamp and maintain the position of the anti-return member, reduce the probability of the anti-return member malfunctioning during the unlocking process, and improve the safety and stability of the lock.

[0017] Optionally, a reset plate is abutted against a side of the anti-retraction member facing away from the lock rod, one end of the reset plate is fixedly connected to the lock housing, and the other end of the reset plate is provided with an inclined surface inclined toward a direction away from the lock rod.

[0018] By adopting the above technical solution, the presence of the reset plate can enhance the reset function of the lock. The inclined slope enables the reset plate to give the anti-return part a force in the direction of the lock rod after unlocking, prompting the anti-return part to return to its position. One end of the reset plate is fixedly connected to the lock shell, which ensures a stable connection between the reset plate and the lock body. The probability of the reset plate loosening or falling off during use is reduced, ensuring the stability and reliability of the lock. Through the inclined slope design of the reset plate, the user does not need to perform additional operations after unlocking, and the reset plate will automatically apply force to make the anti-return part return to its position, which improves the convenience and reliability of operation and reduces the probability of errors during operation.

[0019] Optionally, the reset sheet is made of elastic material.

[0020] By adopting the above technical solution, the elastic material can quickly return to its original shape after being deformed, which enables the reset piece to effectively return to its normal position. Elastic materials usually have good durability and can withstand multiple uses without being easily damaged or failing, so that the reset piece can maintain its function and performance during long-term use, extending the service life of the lock. The elastic material has a certain degree of flexibility and adaptability, and can adapt to temperature and pressure changes under different environmental conditions, so that the reset piece can work normally in various working environments, reducing the impact of external conditions on the reset piece.

[0021] Optionally, the key trigger component includes a trigger protrusion and a linkage block, the trigger protrusion and the linkage block are respectively located on both sides of the lock hole and fixedly connected at one end, the trigger protrusion is arranged around the lock hole, and the linkage block is rotatably connected to the lock shell on the side close to the lock hole, the rotation axis of the linkage block is parallel to the arrangement direction of the lock hole, and the linkage block is provided with linkage teeth in the direction away from the lock hole, and the linkage teeth are engaged with the rotating hub.

[0022] By adopting the above technical solution, the triggering protrusion is arranged around the lock hole, so that the key can be accurately inserted and rotated to trigger the lock mechanism. The linkage block is connected to the lock shell by rotation on the side close to the lock hole, and its rotation axis is parallel to the layout direction of the lock hole, so that the linkage block can move accordingly with the rotation of the key. The linkage block is arranged with linkage teeth in the direction away from the lock hole, and these linkage teeth are engaged with the rotating hub, so that when the key rotates, the linkage block can accurately interact with the trigger part and the locking part of the lock body, thereby improving the accuracy and stability of the unlocking action.

[0023] Optionally, a torsion spring is arranged at the connection between the linkage block and the lock housing, and the torsion spring is used to keep the trigger protrusion and the linkage block located on both sides of the lock hole respectively.

[0024] By adopting the above technical solution, the torsion spring ensures that the trigger protrusion and the linkage block always remain on both sides of the keyhole by providing appropriate elastic force. This ensures that when the key is inserted, the trigger protrusion can be accurately aligned with the lock core, and the linkage block can also be maintained in the correct position, which helps to achieve the normal operation of the lock. The elastic force of the torsion spring ensures the stability of the trigger protrusion and the linkage block, reduces the probability of unnecessary movement or shaking during use, improves the matching degree between the key and the lock core, and thus increases the operational stability and reliability of the lock. The torsion spring can effectively reduce the friction and wear of the trigger protrusion and the linkage block, and extend their service life. This can reduce the maintenance frequency of the lock and reduce the cost of using the lock.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the industrial safety lock is used, the trigger part is driven to move the lock head in the locking part to realize the locking function of the industrial safety lock. When the lock head moves, the trigger part will also synchronously drive the anti-retraction part to move, so that the connecting piece on the lock rod in the locking part abuts against the anti-retraction part, thereby maintaining the locking state of the lock head, reducing the probability of the industrial safety lock loosening during the locking process, thereby reducing the probability of the industrial safety lock being loosened and causing the lock to be unlocked; 2. The anti-retraction part is divided into an anti-retraction part and a reset part. When the lock head is locked, the anti-retraction part can keep the lock head in a locked state, reducing the probability of unlocking. When the lock needs to be restored to an unlocked state, the reset part can be used to drive the anti-retraction part to move, so that the anti-retraction part is separated from the connecting part, and the lock head can be restored to an unlocked state; 3. A reset plate is arranged on the side of the anti-retraction member away from the lock rod, so that when the lock head is locked, the reset plate can make the anti-retraction member close to the lock rod, thereby abutting against the side of the connecting member close to the lock head, reducing the probability of the lock body loosening during use. At the same time, through the inclined surface on the reset plate, the reset plate can automatically apply force to the anti-retraction member, improving the convenience and reliability of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the internal structure of the industrial safety lock according to an embodiment of the present application.

[0027] In the figure: 1. locking part; 11. lock head; 12. lock rod; 13. connecting member; 131. connecting gap; 132. first connecting ring; 133. second connecting ring; 134. abutting spring; 2. triggering part; 21. key triggering member; 211. triggering protrusion; 212. linkage block; 2121. linkage tooth; 213. torsion spring; 22. rotating hub; 23. lock head triggering member; 3. anti-retraction part; 31. anti-retraction member; 311. sliding slope; 312. hook groove; 32. reset member; 321. triggering end; 3211. meshing tooth; 322. clamping end; 3221. clamping interface; 33. reset sheet; 4. lock shell; 5. lock hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 This application is described in further detail.

[0029] The present application discloses an anti-retraction elastic structure for industrial safety locks. Figure 1 An anti-retraction elastic structure for an industrial safety lock includes a locking part 1, a trigger part 2 and an anti-retraction part 3.

[0030] The locking part 1 includes a lock head 11 and a lock rod 12. The lock head 11 is fixedly connected to one end of the lock rod 12. The peripheral wall of the lock rod 12 is connected to a connecting piece 13. A connecting gap 131 is arranged in the connecting piece 13. One end of the trigger part 2 is located in the connecting gap 131 and abuts against the connecting piece 13. The middle part of the trigger part 2 is rotatably connected to the lock housing 4. One end of the trigger part 2 facing away from the locking part 1 is connected to one end of the anti-retraction part 3. The other end of the anti-retraction part 3 is arranged close to the lock rod 12 and can abut against one end of the connecting piece 13 close to the lock head 11.

[0031] The lock head 11 and the lock rod 12 are firmly connected to effectively control the opening and closing of the lock. The connection gap 131 helps to buffer the pressure between the lock rod 12 and the connector 13, thereby reducing the probability of damage to the lock body due to external impact or vibration. The trigger part 2 can provide power to the locking part 1, thereby achieving the locking of the locking part 1. The anti-retraction part 3 can reduce the probability of the lock rod 12 being accidentally moved after unlocking, thereby improving the safety of the lock. Since when the locking part 1 is locked, the anti-retraction part 3 can abut the connector 13 in the locking part 1, thereby achieving the locking of the locking part 1, thereby reducing the probability of the lock body of the industrial safety lock loosening, and further reducing the probability of the industrial safety lock being unlocked due to the loosening of the lock body.

[0032] Reference Figure 1The trigger part 2 includes a key trigger 21, a rotating hub 22 and a lock trigger 23, which are all rotatably connected to the lock shell 4. The layout directions of the rotation axes of the key trigger 21, the rotating hub 22 and the lock trigger 23 are parallel to the layout direction of the lock hole 5. One side of the key trigger 21 is arranged close to the lock hole 5, and the rotating hub 22 is arranged as a gear. The other side of the key trigger 21 engages with one side of the rotating hub 22, and the other side of the rotating hub 22 engages with one end of the lock 11 trigger, and the other end of the lock 11 trigger is arranged in the connecting gap 131.

[0033] The key trigger 21 is connected to the lock housing 4 by rotation, and can respond to the insertion and rotation of the key to trigger the unlocking mechanism of the lock. The rotating hub 22 can rotate with the rotation of the key trigger 21, thereby transmitting power to other components to unlock or lock the lock. After receiving the force transmitted by the rotating hub 22, the trigger of the lock head 11 can drive the lock rod 12 to move by abutting against the connecting member 13, and finally realize the movement of the lock head 11.

[0034] The key trigger 21 includes a trigger protrusion 211 and a linkage block 212. The trigger protrusion 211 and one end of the linkage block 212 are fixedly connected. The linkage block 212 and the penalty protrusion are respectively located on both sides of the lock hole 5. The trigger protrusion 211 is arranged around the lock hole 5. The linkage block 212 is rotatably connected to the lock housing 4 on the side close to the lock hole 5. The rotation axis of the linkage block 212 is arranged in a direction parallel to the arrangement direction of the lock hole 5. The linkage block 212 is provided with a linkage tooth 2121 in the direction away from the lock hole 5. The linkage tooth 2121 meshes with the side of the rotating hub 22 away from the locking part 1. A torsion spring 213 is arranged at the connection between the linkage block 212 and the lock housing 4.

[0035] Reference Figure 1 The trigger protrusion 211 is arranged around the lock hole 5, so that the key can be accurately aligned with the lock core when inserted, thereby triggering the unlocking mechanism of the lock. The linkage block 212 and the trigger protrusion 211 are respectively located on both sides of the lock hole 5, ensuring that the key trigger 21 can work stably when the key is rotated. The rotating hub 22 realizes the connection and transmission with other components. The linkage teeth 2121 arranged on the linkage block 212 can ensure that the linkage block 212 can stably transmit power to other components when the key is rotated. The torsion spring 213 is used to keep the trigger protrusion 211 and the linkage block 212 respectively located on both sides of the lock hole 5.

[0036] The anti-retraction part 3 includes an anti-retraction part 31 and a reset part 32. One end of the anti-retraction part 31 is arranged close to the connecting part 13, and the other end of the anti-retraction part 31 slides and connects to the lock housing 4 in a direction parallel to the abutting surface of the anti-retraction part 31 and the connecting part 13. Specifically, the connection can be made in the form of a dovetail groove and a dovetail slider, or in the form of a wedge groove and a wedge slider. One end of the reset part 32 abuts against the end of the anti-retraction part 31 away from the connecting part 13, and the other end of the reset part 32 engages the trigger part 2. The reset part 32 slides and connects to the lock housing 4 in a direction perpendicular to the lock rod 12.

[0037] The design of the anti-retraction member 31 can effectively reduce the probability that the lock rod 12 is accidentally moved after being unlocked, thereby improving the safety of the lock. The anti-retraction member 31 arranged close to the connecting member 13 ensures that the anti-retraction member 31 can accurately dock with the connecting member 13. The other end of the anti-retraction member 31 is slidably connected to the lock housing 4 in a direction parallel to the abutment surface of the anti-retraction member 31 and the connecting member 13, and is connected in the form of a dovetail groove and a dovetail slider, thereby improving the stability of the connection between the anti-retraction member 31 and the lock housing 4. The reset member 32 enables the lock rod 12 to be reset to the correct position after being moved, thereby ensuring the normal operation of the lock. The reset member 32 can only be slidably connected to the lock housing 4 in a direction perpendicular to the lock rod 12, thereby reducing the probability that the lock rod 12 is illegally moved in the reverse direction or pried, thereby further improving the safety of the lock.

[0038] Reference Figure 1 A sliding slope 311 is arranged on one end of the anti-retraction member 31 facing the lock head 11, and the sliding slope 311 is arranged in the direction of the connecting member 13. A hook groove 312 begins to be formed on the end of the sliding slope 311 away from the lock head 11, and the groove wall of the hook groove 312 on one side close to the lock head 11 can abut against the end of the connecting member 13 close to the lock head 11.

[0039] The arrangement of the sliding slope 311 enables the connecting member 13 to slide smoothly on the anti-retraction member 31, and the hook groove 312 can abut against one end of the connecting member 13 close to the lock head 11 when the connecting member 13 moves below the sliding slope 311, thereby locking the connecting member 13 and improving the reliability and safety of the lock.

[0040] The reset member 32 includes a trigger end 321 and a clamping end 322. The reset member 32 is slidably connected to the lock housing 4 in a direction perpendicular to the lock rod 12, preferably using a dovetail slot and a dovetail slider. The trigger end 321 is provided with a meshing tooth 3211, and the end of the lock trigger member 23 away from the lock rod 12 is meshed with the meshing tooth 3211. The clamping end 322 is provided with a clamping interface 3221, and the clamping interface 3221 abuts against the end of the anti-retraction member 31 away from the lock head 11 in the direction in which the lock rod 12 is arranged and in a direction perpendicular to the direction in which the lock rod 12 is arranged.

[0041] When the anti-return component 31 needs to be reset, the reset component 32 can abut the anti-return component 31 through the card interface 3221, and then restore the anti-return component 31 to its original position. When the anti-return component 31 is needed to play the anti-return function, the reset component 32 moves away from the anti-return component 31, so that the anti-return component 31 abuts against one end of the connecting component 13 close to the lock head 11, thereby realizing the anti-return function of the industrial safety lock.

[0042] The side of the anti-retraction member 31 facing away from the lock rod 12 is abutted against a reset piece 33, one end of the reset piece 33 is fixedly connected to the lock housing 4, and the other end of the reset piece 33 is arranged with an inclined surface inclined away from the lock rod 12. The reset piece 33 is made of elastic material.

[0043] One end of the reset piece 33 is fixedly connected to the lock housing 4, so that the reset piece 33 and the lock housing 4 are firmly connected, which reduces the probability of the lock body becoming loose or falling off, and improves the reliability of the lock. The reset piece 33 can ensure the correct position of the anti-return member 31 after the lock rod 12 is unlocked, and reduce the probability of the anti-return member 31 accidentally moving or being pried. The reset piece 33 made of elastic material can provide appropriate resistance and reset force when the lock rod 12 moves, ensuring the normal operation and safety of the lock.

[0044] Reference Figure 1 The connecting member 13 includes a first connecting ring 132 and a second connecting ring 133. The first connecting ring 132 is fixedly connected to the peripheral wall of the locking rod 12, and the second connecting ring 133 is slidably connected to the peripheral wall of the locking rod 12. The second connecting ring 133 is spaced apart from the first connecting ring 132 and is located at one end of the first connecting ring 132 close to the lock head 11. A contact spring 134 is connected to the side of the second connecting ring 133 facing away from the first connecting ring 132. One end of the contact spring 134 is connected to the second connecting ring 133, and the other end of the contact spring 134 contacts the lock head 11.

[0045] The first connecting ring 132 is fixedly connected to the peripheral wall of the locking rod 12, while the second connecting ring 133 is slidably connected to the peripheral wall of the locking rod 12, so that the first connecting ring 132 can be firmly fixed on the locking rod 12, and the second connecting ring 133 can slide along the locking rod 12, so that the trigger part 2 can move between the first connecting ring 132 and the second connecting ring 133 and drive the locking rod 12 to move. The abutment spring 134 connection enables the second connecting ring 133 to be closely connected to the lock head 11, so that a stable connection can be maintained when the locking rod 12 is operated, thereby improving the reliability and safety of the industrial safety lock.

[0046] The implementation principle of the anti-retraction elastic structure for an industrial safety lock in the embodiment of the present application is as follows: when the industrial safety lock is in use, the trigger part 2 moves to drive the lock head 11 in the locking part 1 to move, thereby realizing the locking function of the industrial safety lock. When the lock head 11 moves, the trigger part 2 will also synchronously drive the anti-retraction part 3 to move, so that the connecting piece 13 on the lock rod 12 in the locking part 1 abuts against the anti-retraction part 3, thereby maintaining the locked state of the lock head 11, reducing the probability of the industrial safety lock loosening during the locking process, and further reducing the probability of the industrial safety lock being loosened and causing the lock body to be unlocked.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anti-retraction elastic structure for industrial safety locks, characterized in that: include: The locking portion (1) comprises a locking head (11) and a locking rod (12), wherein the locking head (11) is used to lock the safety lock, the locking head (11) is fixedly connected to one end of the locking rod (12), a peripheral wall of the locking rod (12) is connected to a connecting piece (13), and a connecting gap (131) is arranged inside the connecting piece (13); A trigger portion (2), one end of which is located in the connection gap (131), and a middle portion of the trigger portion (2) is rotatably connected to the lock housing (4); The anti-retraction portion (3) has one end connected to an end of the trigger portion (2) facing away from the locking portion (1), and the other end of the anti-retraction portion (3) is capable of abutting against an end of the connecting member (13) close to the lock head (11).

2. The anti-retraction elastic structure for industrial safety lock according to claim 1, characterized in that: The connecting member (13) comprises a first connecting ring (132) and a second connecting ring (133), wherein the first connecting ring (132) is fixedly connected to the peripheral wall of the locking rod (12), and the second connecting ring (133) is slidably connected to the peripheral wall of the locking rod (12), the second connecting ring (133) is arranged at intervals from the first connecting ring (132) and is located at one end of the first connecting ring (132) close to the locking head (11), and an abutting spring (134) is connected to a side of the second connecting ring (133) facing away from the first connecting ring (132), one end of the abutting spring (134) is connected to the second connecting ring (133), and the other end of the abutting spring (134) abuts against the locking head (11).

3. The anti-retraction elastic structure for industrial safety lock according to claim 1, characterized in that: The triggering portion (2) comprises a key triggering member (21), a rotating hub (22) and a lock triggering member (23); the key triggering member (21), the rotating hub (22) and the lock triggering member (23) are all rotatably connected to the lock housing (4), and the rotating axis is parallel to the arrangement direction of the lock hole (5); one side of the key triggering member (21) is arranged close to the lock hole (5), the other side of the key triggering member (21) is connected to one side of the rotating hub (22), the other side of the rotating hub (22) is connected to one end of the lock head (11) trigger, and the other end of the lock head (11) trigger is arranged in the connection gap (131).

4. The anti-retraction elastic structure for industrial safety lock according to claim 3, characterized in that: The anti-retraction part (3) comprises an anti-retraction part (31) and a reset part (32); one end of the anti-retraction part (31) is capable of abutting against an end of the connecting part (13) close to the lock head (11); the other end of the anti-retraction part (31) is slidably connected to the lock housing (4) in a direction parallel to the abutting surface between the anti-retraction part (31) and the connecting part (13); one end of the reset part (32) is connected to an end of the anti-retraction part (31) facing away from the connecting part (13); the other end of the reset part (32) is connected to the trigger part (2); and the reset part (32) is capable of moving the anti-retraction part (31) in a direction away from the lock rod (12).

5. The anti-retraction elastic structure for industrial safety lock according to claim 4, characterized in that: An end of the anti-retraction member (31) facing the lock head (11) is provided with a sliding inclined surface (311), the arrangement direction of the sliding inclined surface (311) is towards the direction of the connecting member (13), and an end of the sliding inclined surface (311) facing away from the lock head (11) is provided with a hook groove (312), the groove wall of the hook groove (312) being capable of abutting against an end of the connecting member (13) close to the lock head (11).

6. The anti-retraction elastic structure for industrial safety locks according to claim 4, characterized in that: The reset member (32) comprises a trigger end (321) and a clamping end (322). The reset member (32) is slidably connected to the lock housing (4) in a direction perpendicular to the lock rod (12). The trigger end (321) is provided with a meshing tooth (3211), and the meshing tooth (3211) meshes with an end of the lock head trigger member (23) facing away from the lock rod (12). The clamping end (322) is provided with a clamping interface (3221), and the clamping interface (3221) abuts against an end of the anti-retraction member (31) facing away from the lock head (11) in the arrangement direction of the lock rod (12) and in a direction perpendicular to the arrangement direction of the lock rod (12).

7. The anti-retraction elastic structure for industrial safety lock according to claim 6, characterized in that: A reset plate (33) is abutted against a side of the anti-retraction member (31) facing away from the lock rod (12); one end of the reset plate (33) is fixedly connected to the lock housing (4); and the other end of the reset plate (33) is provided with an inclined surface inclined in a direction away from the lock rod (12).

8. The anti-retraction elastic structure for industrial safety locks according to claim 7, characterized in that: The resetting sheet (33) is made of elastic material.

9. The anti-retraction elastic structure for industrial safety lock according to claim 3, characterized in that: The key triggering member (21) comprises a triggering protrusion (211) and a linkage block (212); the triggering protrusion (211) and the linkage block (212) are respectively located on two sides of the lock hole (5) and are fixedly connected at one end; the triggering protrusion (211) is arranged around the lock hole (5); the linkage block (212) is rotatably connected to the lock housing (4) on a side close to the lock hole (5); the rotation axis of the linkage block (212) is parallel to the arrangement direction of the lock hole (5); the linkage block (212) is provided with linkage teeth (2121) in a direction away from the lock hole (5); and the linkage teeth (2121) are meshed with the rotating hub (22).

10. The anti-retraction elastic structure for industrial safety lock according to claim 9, characterized in that: A torsion spring (213) is arranged at the connection between the linkage block (212) and the lock housing (4), and the torsion spring (213) is used to keep the trigger protrusion (211) and the linkage block (212) respectively located on two sides of the lock hole (5).

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