Self-resetting interlock with unlocking holding function

Abstract

The utility model discloses a self-resetting interlock with an unlocking keeping function, which comprises a first lock body and a second lock body, the first lock body is provided with a lock groove, and the second lock body is provided with a lock catch, an elastic driving component and an elastic self-locking component; the lock catch is rotationally connected to the second lock body, the lock catch is configured to rotate between a locking position and an unlocking keeping position, a locking part is arranged on the lock catch, and the locking part is used for being matched with the lock groove to lock the first lock body; the elastic driving assembly is connected to the second lock body in a sliding mode, and the elastic driving assembly elastically abuts against the lock catch and provides elastic force for the lock catch to rotate towards the locking position. The elastic self-locking assembly is connected to the second lock body in a sliding mode and can slide towards or away from the elastic driving assembly, and the elastic driving assembly is provided with a self-locking part used for being matched with the elastic self-locking assembly.

Description

Technical Field

[0001] This utility model belongs to the field of lock technology, and in particular relates to a self-resetting interlock with unlocking and holding function. Background Technology

[0002] In the lock industry, with the advancement of technology and people's increasing demand for security and convenience, the design and manufacturing of locks have also undergone significant development. However, although existing locks have made great strides in security features such as anti-pry and anti-drilling, there are still certain technical bottlenecks in terms of user experience, especially regarding the issues of "automatic locking" or "false unlocking".

[0003] Traditional locks generally use a spring mechanism to drive the bolt to achieve the locking function. This design has advantages in simplifying the lock structure and reducing manufacturing costs, but it also brings a significant problem—the "automatic relocking" phenomenon. When a user attempts to open the lock, if the spring's restoring force is not completely overcome, or if the external force is suddenly lost during the unlocking process, the bolt will quickly return to its original position under the action of the spring, causing the lock to appear to be unlocked, but in fact still in a locked state, which is the so-called "false unlocking".

[0004] The phenomenon of "false unlocking" not only causes great inconvenience to users, requiring repeated attempts to confirm whether the lock has actually opened, but also presents some improved locks on the market to address this issue. These improvements include adding unlocking confirmation mechanisms and optimizing spring mechanics to reduce the occurrence of "false unlocking." However, these solutions often suffer from drawbacks such as complex structures, high manufacturing costs, and susceptibility to damage, making them difficult to widely adopt and implement. Utility Model Content

[0005] To address the problems in the background technology, the purpose of this utility model is to provide a self-resetting interlock with unlocking and holding function, characterized in that it includes a first lock body and a second lock body, the first lock body is provided with a lock groove, and the second lock body is provided with a latch, an elastic drive component and an elastic self-locking component;

[0006] The latch is rotatably connected to the second lock body, and the latch is configured to rotate between a locked position and an unlocked holding position. The latch is provided with a locking part, which is used to cooperate with the lock groove to lock the first lock body.

[0007] The elastic drive component is slidably connected to the second lock body. The elastic drive component elastically abuts against the latch and provides it with an elastic force to rotate toward the locked position. The elastic self-locking component is slidably connected to the second lock body and can slide toward or away from the elastic drive component. The elastic drive component is provided with a self-locking part for cooperating with the elastic self-locking component.

[0008] When locked, the first lock body moves toward the second lock body, the first lock body abuts against the locking part and drives the latch to rotate toward the unlock holding position. When the lock groove moves to be opposite the locking part, the latch rotates to the locked position by the elastic force of the elastic drive component, and the locking part rotates into the lock groove to lock the first lock body. At the same time, the first lock body overcomes the elastic force of the elastic self-locking component and slides toward the elastic drive component, so that it elastically abuts against the elastic drive component.

[0009] When unlocking, the latch is driven to rotate to the unlock holding position by external force, and the locking part leaves the lock groove to unlock; the latch overcomes the elastic force of the elastic drive component to slide, and when the self-locking part moves to be opposite to the elastic self-locking component, the elastic self-locking component locks the elastic drive component with the self-locking part by elastic force to restrict its sliding.

[0010] According to one embodiment of the present invention, the elastic drive assembly includes a latch drive member and a first elastic member. The latch drive member is slidably connected to the second lock body. The first elastic member is connected to the latch drive member and provides it with an elastic force to slide toward the latch. The latch drive member abuts against the latch. The latch drive member is provided with the self-locking part.

[0011] According to one embodiment of the present invention, the elastic self-locking assembly includes a self-locking drive member, a second elastic member, a self-locking member, and a third elastic member. The self-locking drive member is slidably connected to the second lock body and can slide toward or away from the latch drive member. The second elastic member is connected to the self-locking drive member and provides it with an elastic force to slide away from the latch drive member. The self-locking member is slidably connected to the self-locking drive member and can slide toward or away from the latch drive member. The third elastic member is connected to the self-locking member and disposed between the self-locking member and the self-locking drive member.

[0012] When locked, the first lock body overcomes the elastic force of the second elastic element and drives the self-locking drive member to slide toward the latch drive member. The self-locking drive member drives the self-locking member to slide toward the latch drive member, so that the self-locking member abuts against the latch drive member. The self-locking member slides and compresses the third elastic element relative to the self-locking drive member. The third elastic element provides the self-locking member with an elastic force to slide toward the latch drive member.

[0013] When unlocking, when the self-locking part moves to be opposite the self-locking member, the self-locking member locks it by cooperating with the self-locking part through the elastic force of the third elastic member.

[0014] According to one embodiment of the present invention, the self-locking part is a self-locking groove provided on the self-locking member, and the self-locking member extends into the self-locking groove by the elastic force of the third elastic member to lock it.

[0015] According to one embodiment of the present invention, the latch is provided with a transmission part, and the latch drive member abuts against the transmission part.

[0016] According to one embodiment of the present invention, the locking part is provided with a guide part. When the first lock body moves toward the second lock body, the first lock body abuts against the guide part and is driven by the guide part to rotate toward the unlocking holding position.

[0017] According to one embodiment of the present invention, a mounting base is included, the mounting base is fixed on the second lock body, the latch is rotatably connected to the mounting base via a rotating shaft, and the elastic drive component and the elastic self-locking component are both slidably connected to the mounting base.

[0018] According to one embodiment of the present invention, the second lock body is provided with a mounting groove, and the mounting seat is disposed in the mounting groove.

[0019] According to one embodiment of the present invention, at least one fixing buckle is provided in the mounting groove, one side of the mounting groove is open, the mounting seat enters into the mounting groove through the opening of the mounting groove, the fixing buckle is provided on the groove wall adjacent to the opening of the mounting groove, and the fixing buckle blocks the mounting seat to prevent it from leaving the mounting groove.

[0020] According to one embodiment of the present invention, at least one T-shaped guide rail is provided in the mounting groove, and at least one corresponding T-shaped groove is provided on the mounting base, with the T-shaped guide rail disposed in the T-shaped groove.

[0021] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0022] When locking, this invention automatically locks by pushing the locking part with the first lock body, requiring no additional operation. When unlocking, the elastic self-locking component locks the elastic drive component in conjunction with the self-locking part to restrict its sliding, ensuring the latch remains in the unlocked position. This not only maintains the unlocked state after unlocking but also eliminates the need for continuous manual pressure, preventing "false unlocking." The entire unlocking and relocking process requires only one latch movement, eliminating the need for continuous user intervention or multiple operations. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0025] Figure 2 This is an exploded view of the entire utility model;

[0026] Figure 3 This utility model Figure 2 Local magnification Figure 1 ;

[0027] Figure 4 This utility model Figure 2 Local magnification Figure 2 ;

[0028] Figure 5 This is a partial exploded view of the present invention;

[0029] Figure 6 This is a schematic diagram of the present invention before locking and after unlocking;

[0030] Figure 7 This is a schematic diagram of the present invention when locked;

[0031] Figure 8 This is a schematic diagram of the present invention after it is locked;

[0032] Figure 9 This is a schematic diagram of the unlocked and held state of this utility model;

[0033] Figure 10 This is a schematic diagram of the unlocking process of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. First lock body; 2. Second lock body; 3. Lock groove; 4. Locking buckle; 5. Locking part; 6. Transmission part; 7. Locking buckle drive component; 8. First spring; 9. Self-locking groove; 10. Self-locking drive component; 11. First limiting protrusion; 12. Second spring; 13. Self-locking component; 14. Second limiting protrusion; 15. Third spring; 16. Mounting base; 17. Mounting groove; 18. Rotating shaft; 19. Fixing buckle; 20. T-shaped guide rail; 21. T-shaped groove; 22. Guide slope. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] See Figures 1 to 10 The core of this utility model is to provide a self-resetting interlock with unlocking and holding function, including a first lock body 1 and a second lock body 2. The first lock body 1 is provided with a lock groove 3, and the second lock body 2 is provided with a latch 4, an elastic drive component and an elastic self-locking component.

[0039] The latch 4 is rotatably connected to the second lock body 2, and is configured to rotate between a locked position and an unlocked holding position. The latch 4 is provided with a locking part 5 and a transmission part 6. The locking part 5 is used to cooperate with the lock groove 3 to lock the first lock body 1. In this embodiment, the latch 4 is provided with two locking parts 5, and the first lock body 1 is provided with two corresponding lock grooves 3. Of course, other numbers may be used in other embodiments, and this embodiment is not limited. In this embodiment, the first lock body 1 and the second lock body 2 are respectively provided with a set of lock grooves 3, latch 4, elastic drive assembly and elastic self-locking assembly at both ends.

[0040] The elastic drive assembly is slidably connected to the second lock body 2. The elastic drive assembly elastically abuts against the transmission part 6 and provides the lock 4 with an elastic force to rotate toward the locking position through the transmission part 6. The elastic self-locking assembly is slidably connected to the second lock body 2 and can slide toward or away from the elastic drive assembly. The elastic drive assembly is provided with a self-locking part for cooperating with the elastic self-locking assembly.

[0041] When locked, the first lock body 1 moves toward the second lock body 2, the first lock body 1 abuts against the locking part 5 and drives the latch 4 to rotate toward the unlocking holding position. When the lock groove 3 moves to be opposite to the locking part 5, the latch 4 rotates to the locked position by the elastic force of the elastic drive component, and the locking part 5 rotates into the lock groove 3 to lock the first lock body 1. At the same time, the first lock body 1 overcomes the elastic force of the elastic self-locking component and slides toward the elastic drive component and elastically abuts against the elastic drive component.

[0042] When unlocking, the latch 4 is driven to rotate to the unlock holding position by external force, and the locking part 5 leaves the lock groove 3 to unlock; the latch 4 overcomes the elastic force of the elastic drive component through the transmission part 6 and drives it to slide. When the self-locking part moves to be opposite to the elastic self-locking component, the elastic self-locking component locks the elastic drive component with the self-locking part through elastic force to limit its sliding.

[0043] The elastic drive assembly includes a latch drive component 7 and a first elastic component. The latch drive component 7 is slidably connected to the second lock body 2. The first elastic component is connected to the latch drive component 7 and provides it with an elastic force to slide towards the latch 4. The latch drive component 7 abuts against the transmission part 6, and a self-locking part is provided on the latch drive component 7. In this embodiment, the first elastic component is a first spring 8.

[0044] The elastic self-locking assembly includes a self-locking drive member 10, a second elastic member, a self-locking member 13, and a third elastic member. The self-locking drive member 10 is slidably connected to the second lock body 2 and can slide toward or away from the latch drive member 7. The second elastic member is connected to the self-locking drive member 10 and provides it with an elastic force to slide away from the latch drive member 7. The self-locking drive member 10 is hollow, and the self-locking member 13 is slidably connected inside the self-locking drive member 10 and can slide toward or away from the latch drive member 7. The third elastic member is connected to the self-locking member 13 and is disposed between the self-locking member 13 and the self-locking drive member 10. In this embodiment, the second elastic member and the third elastic member are a second spring 12 and a third spring 15, respectively. In this embodiment, two second springs 12 are provided, and the two second springs 12 are respectively disposed at both ends of the self-locking drive member 10.

[0045] When locked, the first lock body 1 overcomes the elastic force of the second spring 12 and drives the self-locking drive 10 to slide toward the latch drive 7. The self-locking drive 10 drives the self-locking part 13 to slide toward the latch drive 7, so that the self-locking part 13 abuts against the latch drive 7, and the self-locking part 13 slides and compresses the third spring 15 relative to the self-locking drive 10. The third spring 15 gives the self-locking part 13 an elastic force to slide toward the latch drive 7.

[0046] When unlocking, when the self-locking part moves to be opposite to the self-locking member 13, the self-locking member 13 locks it in place by cooperating with the self-locking part through the elastic force of the third spring 15.

[0047] Specifically, the self-locking part is a self-locking groove 9 provided on the self-locking member 13. The self-locking member 13 extends into the self-locking groove 9 by the elastic force of the third spring 15 to lock it.

[0048] Furthermore, the locking part 5 is provided with a guide part. When the first lock body 1 moves toward the second lock body 2, the first lock body 1 abuts against the guide part and, guided by the guide part, drives the latch 4 to rotate toward the unlocked holding position. In this embodiment, the guide part is a guide slope 22.

[0049] The lock includes a mounting base 16, which is fixedly mounted on the second lock body 2. The latch 4 is rotatably connected to the mounting base 16 via a rotating shaft 18. The latch drive 7 and the self-locking drive 10 are both slidably connected to the mounting base 16. Furthermore, the second lock body 2 is provided with a mounting groove 17, and the mounting base 16 is disposed within the mounting groove 17.

[0050] Specifically, the self-locking drive member 10 has two first limiting protrusions 11 protruding from both ends, and the mounting base 16 has two corresponding first limiting grooves. The two first limiting protrusions 11 are respectively located in the two first limiting grooves. The self-locking drive member 10 is restricted to the mounting base 16 by the cooperation between the first limiting protrusions 11 and the first limiting grooves. The self-locking drive member 10 is hollow inside and has an opening at one end facing the mounting base 16. One end of the second spring 12 is located inside the self-locking drive member 10 and abuts against the inner wall of the end of the self-locking drive member 10 away from the mounting base 16. The other end of the second spring 12 abuts against the mounting base 16.

[0051] Two second limiting protrusions 14 are respectively provided at both ends of the self-locking member 13, and two corresponding second limiting grooves are provided in the self-locking drive member 10. The two second limiting protrusions 14 are respectively provided in the two second limiting grooves, and the self-locking member 13 is restricted within the self-locking drive member 10 by the cooperation between the second limiting protrusions 14 and the second limiting grooves. The self-locking member 13 is hollow inside and has an opening at one end away from the mounting base 16. One end of the third spring 15 is located inside the self-locking member 13, and the other end abuts against the self-locking drive member 10.

[0052] Furthermore, at least one fixing buckle 19 is provided in the mounting groove 17. The mounting groove 17 has an opening on one side, and the mounting seat 16 enters into it through the opening of the mounting groove 17. The fixing buckle 19 is provided on the groove wall of the mounting groove 17 adjacent to its opening, and the fixing buckle 19 blocks the mounting seat 16 to prevent it from leaving the mounting groove 17.

[0053] Furthermore, at least one T-shaped guide rail 20 is provided within the mounting groove 17, and at least one corresponding T-shaped groove 21 is provided on the mounting base 16, with the T-shaped guide rail 20 disposed within the T-shaped groove 21. In this embodiment, four T-shaped guide rails 20 and four T-shaped grooves 21 are provided. The cooperation between the T-shaped guide rails 20 and the T-shaped grooves 21 not only guides the mounting base 16 into the mounting groove 17, but also enhances the connection stability between the mounting base 16 and the mounting groove 17.

[0054] The working process of this utility model will be further explained below:

[0055] See in order Figures 6 to 8When locked, the first lock body 1 moves toward the second lock body 2. The first lock body 1 abuts against the guide ramp 22 on the locking part 5 and is guided by the guide ramp 22 to rotate the latch 4. The latch 4 overcomes the elastic force of the first spring 8 through the transmission part 6 and drives the latch drive 7 to slide away from the latch 4, and the first spring 8 is compressed. When the lock groove 3 moves to be opposite the locking part 5, the latch 4 is driven to reset and rotate to the locked position by the first spring 8 and the latch drive 7. The locking part 5 rotates into the lock groove 3 to lock the first lock body 1. During this process, the guide ramp 22 is always in contact with the first lock body 1, and the latch 4 does not rotate to the unlocked holding position. At the same time, the first lock body 1 overcomes the elastic force of the second spring 12 and drives the self-locking drive member 10 to slide toward the latch drive member 7. The second spring 12 is compressed, and the self-locking drive member 10 drives the self-locking member 13 to move toward the latch drive member 7, so that the self-locking member 13 abuts against the latch drive member 7. The self-locking member 13 slides relative to the self-locking drive member 10. The third spring 15 is compressed, and the third spring 15 gives the self-locking member 13 an elastic force to slide toward the latch drive member 7, so that the self-locking member 13 and the latch drive member 7 elastically abut against each other.

[0056] See in order Figure 9 , 10 6. When unlocking, the latch 4 is rotated to the unlock holding position by external force. The latch 4 overcomes the elastic force of the first spring 8 through the transmission part 6 and drives the latch drive 7 away from the latch 4. The first spring 8 is compressed. When the self-locking groove 9 moves to be opposite to the self-locking member 13, the self-locking member 13 extends into the self-locking groove 9 through the elastic force of the third spring 15 to lock the latch drive 7, restricting the latch drive 7 from sliding towards the locking position, so that the latch 4 can be held in the unlock holding position.

[0057] When locking, this invention can automatically lock by pushing the locking part 5 through the first lock body 1, without any additional operation. When unlocking, the elastic self-locking component and the self-locking part cooperate to lock the elastic drive component to limit its sliding, so that the latch 4 can be kept in the unlocked holding position. This not only keeps the unlocked state after unlocking, but also eliminates the need for continuous manual pressure after unlocking, preventing "false unlocking". The entire unlocking and relocking process only requires moving the latch 4 once, without continuous user intervention or multiple operations.

[0058] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A self-resetting interlock with unlocking and holding function, characterized in that, It includes a first lock body and a second lock body. The first lock body is provided with a lock groove, and the second lock body is provided with a latch, an elastic drive component, and an elastic self-locking component. The latch is rotatably connected to the second lock body, and the latch is configured to rotate between a locked position and an unlocked holding position. The latch is provided with a locking part, which is used to cooperate with the lock groove to lock the first lock body. The elastic drive component is slidably connected to the second lock body. The elastic drive component elastically abuts against the latch and provides it with an elastic force to rotate toward the locked position. The elastic self-locking component is slidably connected to the second lock body and can slide toward or away from the elastic drive component. The elastic drive component is provided with a self-locking part for cooperating with the elastic self-locking component. When locked, the first lock body moves toward the second lock body, the first lock body abuts against the locking part and drives the latch to rotate toward the unlock holding position. When the lock groove moves to be opposite the locking part, the latch rotates to the locked position by the elastic force of the elastic drive component, and the locking part rotates into the lock groove to lock the first lock body. At the same time, the first lock body overcomes the elastic force of the elastic self-locking component and slides toward the elastic drive component, so that it elastically abuts against the elastic drive component. When unlocking, the latch is driven to rotate to the unlock holding position by external force, and the locking part leaves the lock groove to unlock; the latch overcomes the elastic force of the elastic drive component to slide, and when the self-locking part moves to be opposite to the elastic self-locking component, the elastic self-locking component locks the elastic drive component with the self-locking part by elastic force to restrict its sliding.

2. The self-resetting interlock with unlocking and holding function according to claim 1, characterized in that, The elastic drive assembly includes a latch drive member and a first elastic member. The latch drive member is slidably connected to the second lock body. The first elastic member is connected to the latch drive member and provides it with an elastic force to slide toward the latch. The latch drive member abuts against the latch. The latch drive member is provided with the self-locking part.

3. The self-resetting interlock with unlocking and holding function according to claim 2, characterized in that, The elastic self-locking assembly includes a self-locking drive member, a second elastic member, a self-locking member, and a third elastic member. The self-locking drive member is slidably connected to the second lock body and can slide toward or away from the latch drive member. The second elastic member is connected to the self-locking drive member and provides it with an elastic force that allows it to slide away from the latch drive member. The self-locking member is slidably connected to the self-locking drive member and can slide toward or away from the latch drive member. The third elastic member is connected to the self-locking member and is disposed between the self-locking member and the self-locking drive member. When locked, the first lock body overcomes the elastic force of the second elastic element and drives the self-locking drive member to slide toward the latch drive member. The self-locking drive member drives the self-locking member to slide toward the latch drive member, so that the self-locking member abuts against the latch drive member. The self-locking member slides and compresses the third elastic element relative to the self-locking drive member. The third elastic element provides the self-locking member with an elastic force to slide toward the latch drive member. When unlocking, when the self-locking part moves to be opposite the self-locking member, the self-locking member locks it by cooperating with the self-locking part through the elastic force of the third elastic member.

4. The self-resetting interlock with unlocking and holding function according to claim 3, characterized in that, The self-locking part is a self-locking groove provided on the self-locking member, and the self-locking member extends into the self-locking groove by the elastic force of the third elastic member to lock it.

5. The self-resetting interlock with unlocking and holding function according to claim 2, characterized in that, The latch is provided with a transmission part, and the latch drive member abuts against the transmission part.

6. The self-resetting interlock with unlocking and holding function according to claim 1, characterized in that, The locking part is provided with a guide part. When the first lock body moves toward the second lock body, the first lock body abuts against the guide part and is guided by the guide part to drive the latch to rotate toward the unlocking and holding position.

7. The self-reset interlocking system with unlocking and holding function according to claim 1, characterized in that, The lock includes a mounting base, which is fixed to the second lock body. The latch is rotatably connected to the mounting base via a pivot. The elastic drive assembly and the elastic self-locking assembly are both slidably connected to the mounting base.

8. The self-resetting interlock with unlocking and holding function according to claim 7, characterized in that, The second lock body is provided with a mounting groove, and the mounting base is disposed in the mounting groove.

9. The self-resetting interlock with unlocking and holding function according to claim 8, characterized in that, The mounting groove is provided with at least one fixing buckle. One side of the mounting groove is open, and the mounting seat enters into it through the opening of the mounting groove. The fixing buckle is provided on the groove wall adjacent to the opening of the mounting groove, and the fixing buckle blocks the mounting seat to prevent it from leaving the mounting groove.

10. The self-resetting interlock with unlocking and holding function according to claim 8 or 9, characterized in that, The mounting groove is provided with at least one T-shaped guide rail, and the mounting base is provided with at least one corresponding T-shaped groove, with the T-shaped guide rail disposed in the T-shaped groove.

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