Emergency release mechanism of self-priming door lock

Abstract

The present invention provides an emergency disengagement mechanism of a self-priming door lock, comprising a self-priming unit and an emergency disengagement unit, wherein the self-priming unit comprises: a cam rotatably mounted on an outer shell, a driving component mounted at one end on the cam, a first return spring mounted at both ends on the cam and the outer shell respectively, a swing claw rotatably mounted at one end on the cam, and a rotating component mounted at the other end of the swing claw, wherein a pushing block is arranged on the cam; the emergency disengagement unit comprises: a limiting component and a supporting component rotatably mounted on the outer shell, a second return spring mounted at both ends on the limiting component and the supporting component respectively, and a disengagement component mounted on the supporting component, wherein the rotating component is mounted on the limiting component, the limiting component is provided with a protrusion and a baffle plate cooperating with the pushing block, and the supporting component is provided with a stopping component cooperating with the protrusion. The present invention can unconditionally and reliably interrupt the self-priming process, reduce operating force, improve customer operation perception, and ensure safety.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile locks, and in particular relates to an emergency disengagement mechanism of a self-priming door lock. Background Art

[0002] With the development of the automobile industry and the upgrading of consumption, the application of self-priming side door locks in passenger cars has gradually increased. Compared with ordinary door locks, self-priming not only increases functionality and improves comfort, but also puts forward higher requirements for safety. The self-priming action means that there is a risk of fingers and clothing being pinched in the car door. In the design of the door lock mechanism, a mechanical structure for emergency disengagement needs to be provided. Specifically, when the passenger or driver realizes the danger during the door closing process and quickly pulls the outer or inner opening handle, the door lock mechanism must be able to unconditionally and reliably interrupt the self-priming process and mechanically disengage the related structure so that the door can be opened and the danger is eliminated. Summary of the invention

[0003] The present invention is made to solve the above-mentioned problems, and its purpose is to provide an emergency disengagement mechanism for a self-priming door lock that can unconditionally and reliably interrupt the self-priming process, reduce operating force, improve customer operating perception, and ensure safety.

[0004] The present invention provides an emergency disengagement mechanism of a self-priming door lock, the door lock comprises a pawl and a lock tongue matched with the pawl, the lock tongue is provided with semi-locking meshing teeth and full-locking meshing teeth, and is characterized in that the emergency disengagement mechanism of the self-priming door lock comprises:

[0005] The self-priming unit comprises: a cam rotatably mounted on a housing, a driving member mounted at one end on the cam, a first return spring mounted at two ends on the cam and the housing respectively, a swing claw rotatably mounted at one end on the cam, and a rotating member mounted at the other end of the swing claw, wherein a pushing block is arranged on the cam; and

[0006] The emergency disengagement unit comprises: a limiting member rotatably mounted on the housing, a supporting member rotatably mounted on the housing, a second return spring mounted at both ends on the limiting member and the supporting member respectively, and a disengagement member mounted on the supporting member, wherein the rotating member is mounted on the limiting member, the limiting member is provided with a protrusion and a baffle matched with the pushing block, and the supporting member is provided with a stopping member matched with the protrusion.

[0007] The protrusion cooperates with the blocking member. When emergency disengagement is not performed, the blocking member contacts the protrusion. When an external force pushes the disengagement member to move toward the lock tongue, the disengagement member drives the support member to rotate, the blocking member disengages from the protrusion, and the support member releases the restriction on the limiting member.

[0008] The baffle plate and the push block cooperate with each other. When the self-priming full lock is not performed, the baffle plate and the push block are in contact. When the self-priming full lock is performed, the cam rotates, and the push block rotates in a direction away from the baffle plate. After the self-priming full lock is performed and the emergency disengagement is performed, when the cam rotates in the reverse direction to reset, the push block pushes the baffle plate to rotate, thereby pushing the limiting component to reverse and reset.

[0009] The positions and shapes of the limiting member and the supporting member satisfy that when the self-priming full locking is performed, the cam rotates, and the limiting member does not rotate after the swing claw applies force to the limiting member.

[0010] The lock tongue is provided with a toggle block, and the toggle block cooperates with the swing claw. When the self-priming full locking is performed, the rotation of the cam drives the swing claw to rotate around the rotating member. After the swing claw rotates, it contacts the toggle block and pushes the lock tongue to rotate.

[0011] When self-priming full locking is performed and emergency disengagement is executed, the cam rotates, pushing the end of the swing claw connected to the cam to move, and the limiting member rotates due to the thrust of the swing claw. The position of the end of the swing claw connected to the limiting member changes, so that the part of the swing claw that contacts the toggle block is away from the toggle block and cannot contact the toggle block, thereby failing to perform self-priming full locking.

[0012] Furthermore, in the emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following feature: the driving component is a cable, and one end of the cable is mounted on the cam.

[0013] Furthermore, in an emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following characteristics: the rotating component is a bearing, a first rotating shaft is provided at one end of the swing claw connected to the limiting component, and the rotating component is sleeved on the first rotating shaft.

[0014] Furthermore, in the emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following feature: a slide groove is provided on the limiting member, and the rotating member is installed in the slide groove.

[0015] Furthermore, in an emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following characteristics: the end of the slide groove facing the cam has only two side walls, the baffle is located on one of the side walls, and the position of the side wall on which the baffle is installed: when self-priming full locking is performed, the side wall on which the baffle is installed is located on the side opposite to the rotation direction of the cam, and the height of the side wall on which the baffle is not installed is not in the same rotation plane as the push block, so the push block cannot touch the side wall when rotating.

[0016] Furthermore, in an emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following characteristics: a first groove is provided on the supporting member, the stopping member is located on one side of the first groove, and the disengagement member is installed on the other side of the first groove.

[0017] Furthermore, in an emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following characteristics: the protrusion and the stopping member are located in the same rotation plane, and the side of the support member on which the disengagement member is installed is not in the same rotation plane as the protrusion.

[0018] Furthermore, in an emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following characteristics: a second groove is arranged on the limiting member, the side of the second groove away from the rotation center of the limiting member is the protrusion, and the structure of the side of the second groove facing the rotation center of the limiting member is not in the same rotation plane as the stopping member.

[0019] Furthermore, in the emergency disengagement mechanism of a self-priming door lock provided by the present invention, it may also have the following feature: a mounting hole is provided on the limiting component, and one end of the second return spring mounted on the limiting component is mounted in the mounting hole.

[0020] Furthermore, in the emergency release mechanism of the self-priming door lock provided by the present invention, it can also have the following feature: the first return spring and the second return spring are both torsion springs. The present invention has the following advantages:

[0021] The emergency disengagement mechanism of a self-priming door lock according to the present invention is different from the traditional design that relies on brute force to overcome friction for forced disengagement. The door lock is self-priming through a cam and a rocker rod, and emergency disengagement is performed through the design of a limiting component and a supporting component, which reduces the operating force, improves the customer's operating perception, and ensures safety. The design of the reset structure between the cam and the limiting component reduces the use of springs, bringing cost advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the emergency release mechanism of the self-priming door lock in an embodiment of the present invention;

[0023] Figure 2 is a structural schematic diagram of the opposite side of the emergency disengagement mechanism of the self-priming door lock in an embodiment of the present invention;

[0024] Figure 3 It is a force analysis diagram of some components when the self-priming is fully locked in an embodiment of the present invention;

[0025] Figure 4is a schematic diagram of a structure after emergency disengagement is performed in an embodiment of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the reset process after emergency separation in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following embodiments and the accompanying drawings specifically illustrate the emergency release mechanism of a self-priming door lock of the present invention.

[0028] An emergency disengagement mechanism 100 of a self-priming door lock is installed on a car door. The door lock 400 includes a lock tongue 42 and a ratchet 41. The lock tongue 42 is provided with a semi-locking meshing tooth 421 and a fully-locking meshing tooth 422. The lock tongue 42 and the ratchet 41 cooperate to make the door lock semi-locked, fully locked and opened. The lock tongue 42 is provided with a toggle block 423.

[0029] like Figure 1 , Figure 2 As shown, an emergency release mechanism 100 of a self-priming door lock includes: a self-priming unit 10 and an emergency release unit 20.

[0030] The self-priming unit 10 includes a cam 11 , a driving member 12 , a first return spring 13 , a swing claw 14 and a rotating member 15 .

[0031] The cam 11 is rotatably mounted on the housing 30, which is a housing for mounting the locking tongue 42 and the pawl 41. A push block 111 is provided on the cam 11, which is used to help the emergency disengagement unit 200 to reset after the emergency disengagement is performed. Specifically, a second rotating shaft 112 is fixed on the housing 30, and the cam 11 is sleeved on the second rotating shaft 112.

[0032] One end of the driving member 12 is mounted on the cam 11, and is used to pull the cam 11 to rotate and perform self-priming full locking. Specifically, the driving member 12 is a cable, and one end of the cable is mounted on the cam 11. The force of the driving member 12 pulling the cam 11 to rotate is a mechanical drive inside the car.

[0033] One end of the first return spring 13 is mounted on the cam 11, and the other end is mounted on the housing. When the cam 11 is pulled and rotated by the driving member 12, the cam 11 is reversely rotated and reset after the force provided by the driving member 12 disappears. Specifically, the first return spring 13 is a torsion spring, and the coil of the first return spring 13 is sleeved on the second rotating shaft 112.

[0034] One end of the swing claw 14 is rotatably mounted on the cam 11, and the other end is mounted with a rotating member 15. Specifically, a third rotating shaft 113 is fixed to the cam 11, and one end of the swing claw 14 is sleeved on the third rotating shaft 113. The shape of the swing claw 14 is such that after the cam 11 drives the swing claw 14 to rotate around the rotating member 15, the swing claw 14 can contact the toggle block 423 and push the lock tongue 42 to rotate, thereby performing self-priming full locking.

[0035] In this embodiment, the rotating member 15 is a bearing, and a first rotating shaft 141 is provided at one end of the swing claw 14 that is not mounted on the cam 11 , and the rotating member 15 is sleeved on the first rotating shaft 141 .

[0036] The emergency disengagement unit 20 includes a limiting member 21 , a supporting member 22 , a second return spring 23 and a disengagement member 24 .

[0037] The limiting member 21 is rotatably mounted on the housing, specifically, a fourth rotating shaft 215 is fixed on the housing 30, and the limiting member 21 is sleeved on the fourth rotating shaft 215. The supporting member 22 is rotatably mounted on the housing, specifically, a fifth rotating shaft 222 is fixed on the housing 30, and the supporting member 22 is sleeved on the fifth rotating shaft 222.

[0038] The limiting member 21 is provided with a protrusion 211 and a baffle 212. The baffle 212 cooperates with the push block 111. When the self-priming full lock is not performed (initial state), the baffle 212 and the push block 111 are in contact. When the self-priming full lock is performed, the cam 11 rotates, and the push block 111 rotates in a direction away from the baffle 212. After the self-priming full lock is performed and the emergency disengagement is performed, when the cam 11 rotates in the reverse direction to reset, the push block 111 pushes the baffle 212 to rotate, thereby pushing the limiting member 21 to reverse and reset.

[0039] The support member 22 is provided with a stop member 221. The protrusion 211 cooperates with the stop member 221. When emergency separation is not performed, Figure 1 , Figure 3 As shown, the protrusion 211 contacts the stop member 221, and the support member 22 restricts the limiting member 21 from rotating clockwise (in Figure 1 After the emergency disengagement, that is, after the external force pushes the disengagement member 24 toward the lock tongue 42, the disengagement member 24 drives the support member 22 to rotate counterclockwise (in Figure 4 direction), such as Figure 4 As shown, the blocking member 221 is separated from the protrusion 211, and the support member 22 releases the restriction on the limiting member 21. Under the push of the swing claw 14, the limiting member 21 rotates counterclockwise (by Figure 4 direction). Figure 1From the direction of the stopper 221, when resetting after emergency disengagement, the limiting member 21 rotates counterclockwise to reset under the push of the push block 111, and the support member 22 cannot rotate clockwise to reset due to being blocked by the side wall of the protrusion 211. When the limiting member 21 rotates counterclockwise to the position where the protrusion 211 is separated from the stop member 221, the limiting member 21 releases the restriction on the support member 22, and the support member 22 rotates clockwise to reset under the elastic potential energy of the second reset spring 23, and the protrusion 211 and the stop member 221 return to the initial contact state.

[0040] The positions and shapes of the limiting member 21 and the supporting member 22 satisfy the following conditions: when the self-priming is fully locked, the cam 11 rotates, and the limiting member 21 does not rotate after the swing claw 14 applies force to the limiting member 21. Figure 3 As shown, after the swing claw 14 contacts the toggle block 423, the toggle block 423 generates a reaction force Ft on the swing claw 14. The reaction force Ft is decomposed into a force component F1 directed to the second rotating shaft 112 and a force component F2 directed to the third rotating shaft 113. The force component F2 causes the swing claw 14 installed at one end of the limiting member 21 to be aligned with the upper side of the limiting member 21 (with the force component F2 directed to the third rotating shaft 113). Figure 3 The stop member 221 contacts the protrusion 211 and generates a pressure F5 on the limit member 21. The limit member 21 generates an interactive support force F3 on the swing claw 14. The pressure F5 forces the limit member 21 to rotate. The force acts on the support member 22, so that an interactive force is generated between the protrusion 211 and the stop member 221. The stop member 221 generates a support force F4 on the protrusion 211. The support force F4 and the pressure F5 are balanced in torque on the support member 22. The direction of the force generated by the protrusion 211 on the stop member 221 passes through the fifth rotating shaft 222, so that it is supported by the fifth rotating shaft 222. Therefore, when emergency disengagement is not performed, that is, when no external force is applied to the disengagement member 24, the limiting member 21 and the supporting member 22 are in a relatively stable state, and the force applied by the swing claw 14 to the limiting member 21 is ultimately supported by the fifth rotating shaft 222. Therefore, the limiting member 21 does not move, and the position of the swing claw 14 installed at one end of the limiting member 21 remains unchanged relative to the limiting member 21. When the cam 11 pushes the swing claw 14 to rotate, the swing claw 14 can rotate around the end installed on the limiting member 21.

[0041] One end of the second return spring 23 is mounted on the limiting member 21, and the other end is mounted on the supporting member 22. When the emergency disengagement is not performed, the second return spring 23 is in a free state. The structural relationship between the limiting member 21 and the supporting member 22 and the action of the second return spring 23 make the limiting member 21 and the supporting member 22 in a relatively stable state. The rotation of either the limiting member 21 or the supporting member 22 will cause the spring to generate elastic potential energy. The disengagement member 24 is mounted on the supporting member 22, and is used to drive the supporting member 22 to rotate.

[0042] In this embodiment, a slide groove 213 is provided on the limiting member 21, and the rotating member 15 is installed in the slide groove 213. When performing emergency disengagement, the swing claw 14 is installed on one end of the limiting member 21 and rolls in the slide groove 213, which further reduces the operating force compared to traditional sliding.

[0043] In this embodiment, if Figure 2 , Figure 5 As shown, the end of the slide groove 213 facing the cam 11 has only two side walls, that is, there is no bottom of the groove, and the baffle 212 is located on one of the side walls. The position of the side wall on which the baffle 212 is installed is: when self-priming full locking is performed, the side wall on which the baffle 212 is installed is located on the side opposite to the rotation direction of the cam 11, and the height of the side wall on which the baffle 212 is not installed is not in the same rotation plane as the push block 111, and the push block 111 cannot touch the side wall when rotating.

[0044] In this embodiment, a first groove is provided on the support member 22, the stopping member 221 is located on one side of the first groove, and the disengagement member 24 is installed on the other side of the first groove. Figure 4 From the direction of rotation, after the emergency disengagement is performed, the support member 22 rotates counterclockwise, and the limiting member 21 rotates clockwise, and the protrusion 211 is located in the first groove.

[0045] Specifically, the protrusion 211 and the stopping member 221 are located in the same rotation plane, and the side of the support member 22 on which the separation member 24 is installed is not in the same rotation plane as the protrusion 211. Figure 4 From the perspective of the square, the protrusion 211 is located above the side of the support member 22 where the disengagement member 24 is installed. After the emergency disengagement is performed, the support member 22 rotates counterclockwise, and after the limiting member 21 rotates clockwise, the protrusion 211 contacts the lower side wall of the first groove.

[0046] In this embodiment, if Figure 1 , Figure 4 As shown, the limiting member 21 is provided with a second groove 214, and the side of the second groove 214 away from the rotation center of the limiting member 21 (the fourth rotation axis 215) is a protrusion 211, and the structure of the side of the second groove 214 facing the rotation center of the limiting member 21 is not on the same rotation plane as the blocking member 221. Figure 1 From the direction of the stop member 221, the right side of the stop member 221 contacts the protrusion 211, and the left side of the stop member 221 is located below the limiting member 21. Figure 4 As shown, after the support member 22 rotates counterclockwise, the blocking member 221 is separated from the protrusion 211, and the limiting member 21 rotates clockwise, and the upper end of the blocking member 221 is located in the second groove 214. Figure 4As shown, after the stop member 221 is separated from the protrusion 211, the stop member 221 contacts the upper side wall of the second groove 214. Figure 5 As shown, since the stopping member 221 is blocked by the side wall of the protrusion 211, that is, blocked by the right side wall of the second groove 214, only when the protrusion 211 reaches the position separated from the stopping member 221, the support member 22 can rotate counterclockwise and reset under the elastic potential energy of the second reset spring 23, and the protrusion 211 and the stopping member 221 return to the initial contact state.

[0047] In this embodiment, a mounting hole 216 is provided on the limiting member 21 , and one end of the second return spring 23 mounted on the limiting member 21 is mounted in the mounting hole 216 .

[0048] In this embodiment, the second return spring 23 is a torsion spring, and the spring coil of the torsion spring is sleeved on the fifth rotating shaft 222 .

[0049] When working:

[0050] like Figure 1 As shown, when the meshing teeth 411 of the pawl 41 mesh with the semi-locking meshing teeth 421 provided on the lock tongue 42, the door lock is in a semi-locking position, which is defined as the initial state of the self-priming action. The first return spring 13 is in a free state, the second return spring 23 is in a free state, the protrusion 211 contacts the blocking member 221, and the support member 22 limits the rotation of the limiting member 21.

[0051] Self-priming process: Figure 1 From the direction of the vehicle, the car applies a force to the driving member 12, so that the driving member 12 pulls the cam 11 to the left, and the cam 11 rotates counterclockwise. Since the limiting member 21 does not move, the cam 11 drives the swing claw 14 to rotate around the first rotating shaft 141. After the swing claw 14 contacts the toggle block 423, it pushes the toggle block 423 to drive the lock tongue 42 to rotate until the full locking meshing teeth 422 of the lock tongue mesh with the meshing teeth of the pawl 41. The force of the car on the driving member 12 disappears, and the cam 11 rotates in the opposite direction to reset under the elastic force of the first reset spring 13, driving the swing claw 14 to rotate in the opposite direction around the first rotating shaft 141, and the swing claw 14 resets.

[0052] During the self-priming process, perform emergency disengagement: Figure 1From the direction of the vehicle, the car applies a force to the driving member 12, so that the driving member 12 pulls the cam 11 to the left, and the cam 11 rotates counterclockwise. Since the limiting member 21 is stationary, the cam 11 drives the swing claw 14 to rotate around the first rotating shaft 141. In the process of the swing claw 12 pushing the lock tongue 42 to rotate to the full locking position, when emergency disengagement is required, the external force drives the disengagement member 24 to move to the left, and the disengagement member 24 drives the support member 22 to rotate counterclockwise, the stop member 221 is disengaged from the protrusion 211, and the support member 22 releases the restriction on the limiting member 21. The limiting member 21 rotates clockwise under the push of the swing claw 14, and the second return spring 23 is compressed to accumulate elastic potential energy. The swing claw 14 installed at one end of the support member 22 moves in the direction away from the lock tongue 42, so that the swing claw 14 is disengaged from the toggle block 423, and the lock tongue 42 is opened.

[0053] When the driving member 12 pulls the cam 11 to rotate to the maximum angle, the external force applied to the driving member 12 disappears. Figure 5 From the direction of the cam 11, the cam 11 is reversed and reset (rotated counterclockwise) under the elastic potential energy of the first reset spring 13, and the push block 111 rotates counterclockwise to push the baffle 212, thereby pushing the limiting member 21 to rotate clockwise and reset. During the reset process of the cam 11 and the limiting member 21, the swing claw 14 is driven to reset. During the reset process of the limiting member 21, when the protrusion 211 reaches the position where it is separated from the blocking member 221, the support member 22 rotates counterclockwise and resets under the elastic potential energy of the second reset spring 23, and the protrusion 211 and the blocking member 221 return to the initial contact state.

[0054] The above-mentioned embodiments are preferred examples of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. An emergency disengagement mechanism of a self-priming door lock, the door lock comprises a ratchet and a lock tongue cooperating with the ratchet, the lock tongue is provided with a semi-locking meshing tooth and a fully-locking meshing tooth, characterized in that: The emergency disengagement mechanism of the self-priming door lock comprises: The self-priming unit comprises: a cam rotatably mounted on a housing, a driving member mounted at one end on the cam, a first return spring mounted at two ends on the cam and the housing respectively, a swing claw rotatably mounted at one end on the cam, and a rotating member mounted at the other end of the swing claw, wherein a pushing block is arranged on the cam; and The emergency disengagement unit comprises: a limiting member rotatably mounted on the housing, a supporting member rotatably mounted on the housing, a second return spring mounted at both ends on the limiting member and the supporting member respectively, and a disengagement member mounted on the supporting member, wherein the rotating member is mounted on the limiting member, the limiting member is provided with a protrusion and a baffle matched with the pushing block, and the supporting member is provided with a stopping member matched with the protrusion. The protrusion cooperates with the blocking member. When emergency disengagement is not performed, the blocking member contacts the protrusion. When an external force pushes the disengagement member to move toward the lock tongue, the disengagement member drives the support member to rotate, the blocking member disengages from the protrusion, and the support member releases the restriction on the limiting member. The baffle plate and the push block cooperate with each other. When the self-priming full lock is not performed, the baffle plate and the push block are in contact. When the self-priming full lock is performed, the cam rotates, and the push block rotates in a direction away from the baffle plate. After the self-priming full lock is performed and the emergency disengagement is performed, when the cam rotates in the reverse direction to reset, the push block pushes the baffle plate to rotate, thereby pushing the limiting component to reverse and reset. The positions and shapes of the limiting member and the supporting member satisfy that when the self-priming full locking is performed, the cam rotates, and the limiting member does not rotate after the swing claw applies force to the limiting member. The lock tongue is provided with a toggle block, and the toggle block cooperates with the swing claw. When the self-priming full locking is performed, the rotation of the cam drives the swing claw to rotate around the rotating member. After the swing claw rotates, it contacts the toggle block and pushes the lock tongue to rotate. When self-priming full locking is performed and emergency disengagement is executed, the cam rotates, pushing the end of the swing claw connected to the cam to move, and the limiting member rotates due to the thrust of the swing claw. The position of the end of the swing claw connected to the limiting member changes, so that the part of the swing claw that contacts the toggle block is away from the toggle block and cannot contact the toggle block, thereby failing to perform self-priming full locking.

2. The emergency release mechanism of the self-priming door lock according to claim 1 is characterized in that: The driving member is a cable, one end of which is mounted on the cam.

3. The emergency release mechanism of the self-priming door lock according to claim 1 is characterized in that: The rotating member is a bearing, and one end of the swing claw connected to the limiting member is provided with a first rotating shaft, and the rotating member is sleeved on the first rotating shaft.

4. The emergency release mechanism of the self-priming door lock according to claim 3 is characterized in that: The limiting member is provided with a slide groove, and the rotating member is installed in the slide groove.

5. The emergency release mechanism of the self-priming door lock according to claim 4 is characterized in that: The end of the slide groove facing the cam has only two side walls, and the baffle is located on one of the side walls. The position of the side wall where the baffle is installed is: when self-priming full locking is performed, the side wall where the baffle is installed is located on the side opposite to the rotation direction of the cam, and the height of the side wall where the baffle is not installed is not in the same rotation plane as the push block, so the push block cannot touch the side wall when rotating.

6. The emergency release mechanism of the self-priming door lock according to claim 1, characterized in that: The supporting member is provided with a first groove, the stopping member is located on one side of the first groove, and the disengaging member is installed on the other side of the first groove.

7. The emergency release mechanism of the self-priming door lock according to claim 6, characterized in that: The protrusion and the stopping member are located in the same rotation plane, and the side of the supporting member on which the disengagement member is mounted is not located in the same rotation plane as the protrusion.

8. The emergency release mechanism of the self-priming door lock according to claim 7, characterized in that: The limiting member is provided with a second groove, a side of the second groove away from the rotation center of the limiting member is the protrusion, and a structure of a side of the second groove facing the rotation center of the limiting member is not in the same rotation plane as the blocking member.

9. The emergency release mechanism of the self-priming door lock according to claim 1, characterized in that: The limiting component is provided with a mounting hole, and one end of the second return spring mounted on the limiting component is mounted in the mounting hole.

10. The emergency release mechanism of the self-priming door lock according to claim 1, characterized in that: The first return spring and the second return spring are both torsion springs.

Images