Quick adjusting assembly for spring bolt

Abstract

The utility model relates to a lock, in particular to a lock tongue rapid adjusting assembly which comprises a lock rod, an adjusting nut, an elastic piece and a lock tongue. The outer wall of the lock rod is provided with threads, and the adjusting nut is installed on the outer side of the lock rod through the threads. The lock tongue axially moves and is sleeved on the outer side of the lock rod in a limited mode in the circumferential direction. A plurality of clamping pieces which are uniformly and circumferentially distributed are arranged on the upper surface and the lower surface of at least one side of the adjusting nut in the extending direction of the lock rod, and clamping parts corresponding to the clamping pieces are arranged on the elastic piece; the elastic piece axially moves, the lock rod is sleeved with the elastic piece in the circumferential direction in a limited mode, the elastic piece is provided with an elastic part which always exerts elastic acting force towards the adjusting nut, and the spring bolt and the adjusting nut abut against the inner side surface of the elastic piece. In the adjusting process, only the adjusting nut needs to be adjusted, operation is easy, tools are not needed, the adjusting time is shortened, rapid adjustment is achieved, and the disassembling and assembling process is also rapid.

Description

Technical Field

[0001] This utility model relates to a lock, specifically to a quick-adjustment assembly for the lock tongue. Background Technology

[0002] The bolt is an important component of a lock. When the bolt is inserted into the keyhole, it can lock objects such as doors. To unlock, the bolt needs to be moved out of the keyhole.

[0003] When assembling locks, the bolt must be aligned with the keyhole to facilitate its movement and avoid interference. This alignment process requires a bolt adjustment assembly. In existing technologies (such as...) Figure 1 The latch adjustment assembly typically includes a latch rod 1, a latch 4, two nuts 2, and a washer 7. The two nuts and the washer hold the latch. When adjusting the latch, tools are needed to unscrew the two nuts, and then adjust the position of the two nuts and the washer. The adjustment process is quite cumbersome, and the operator cannot judge the amount of adjustment during the process, which easily leads to the operator having to repeat the adjustment process multiple times.

[0004] Therefore, how to solve the problem of the cumbersome adjustment process and the inability to determine the adjustment amount of the locking tongue in the existing technology has become the research topic to be solved by this utility model. Utility Model Content

[0005] The purpose of this invention is to provide a fast adjustment component for the locking tongue.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quick-adjustment locking tongue assembly, including a locking rod, an adjusting nut, an elastic element, and a locking tongue; the outer wall of the locking rod is provided with threads, and the adjusting nut is installed on the outside of the locking rod through the threads; the locking tongue is axially movable and circumferentially restricted and fitted onto the outside of the locking rod; along the extension direction of the locking rod, at least one side of the adjusting nut is provided with a plurality of uniformly circumferentially distributed engaging parts on its upper and lower surfaces, and the elastic element is provided with engaging portions corresponding to the engaging parts; the elastic element is axially movable and circumferentially restricted and fitted onto the outside of the locking rod, and the elastic element has an elastic portion that always applies an elastic force toward the adjusting nut, and the locking tongue and the adjusting nut abut against the inner surface of the elastic element.

[0007] In the above solution, adjustment only requires adjusting the adjusting nut, making the operation simple and tool-free, thus shortening the adjustment time for rapid adjustment. Furthermore, the adjusting nut and other components can be repeatedly disassembled and reassembled for reuse, with the disassembly and assembly process also being simple and quick. In addition, the elastic element provides vibration resistance during use. Simultaneously, the engaging components are correspondingly arranged with the engaging part; during the rotation of the adjusting nut, multiple engaging components near the engaging part sequentially engage with it, thus providing guidance to the operator and helping them determine the adjustment amount of the locking tongue.

[0008] A further technical solution is that, along the extension direction of the locking rod, multiple locking elements are provided on both sides of the adjusting nut in a uniform circumferential distribution. The locking elements on both sides of the adjusting nut are used alternately to improve the service life of the adjusting nut.

[0009] In a further technical solution, the engaging component is configured as a recessed structure, and the engaging portion is configured as a protruding structure. The recessed structure can be configured as a groove, and correspondingly, the protruding structure serves as a protrusion that matches the groove.

[0010] In a further technical solution, the engaging component is configured as a protruding structure, and the engaging portion is configured as a recessed structure.

[0011] In a further technical solution, the bottom surface of the recessed structure and the top surface of the protruding structure are both arc-shaped or smooth curved surfaces, so as to avoid overcoming a large force during the process of the engaging component and engaging part gradually engaging and disengaging.

[0012] A further technical solution includes two mating parts spaced apart along the extension direction of the locking rod, and a connecting part connected to the two mating parts at both ends. The elastic part is formed by the two mating parts, or by the two mating parts and the connecting part. The locking tongue is located between the two mating parts and the adjusting nut. The locking tongue is located on either side of the adjusting nut along the extension direction of the locking rod. The engaging part is located on one of the mating parts. The locking tongue and the engaging part are located on opposite sides of the adjusting nut along the extension direction of the locking rod. The mating parts have through holes for the locking rod to pass through.

[0013] In a further technical solution, the projections of the two fitting components in the extension direction of the locking rod are both covered by the projection of the adjusting nut in the extension direction of the locking rod. In this case, the fitting components cannot prevent the operator from rotating the adjusting nut, and the operator can rotate the adjusting nut without inserting his / her fingers into the elastic element.

[0014] A further technical solution is that, along the first direction, at least a portion of the projected outer edge of the adjusting nut extends beyond the projected outer edge of the connecting sub-component, making it easier for the operator to rotate the adjusting nut from more directions.

[0015] In a further technical solution, the elastic element is made of plastic.

[0016] In a further technical solution, the adjusting nut is made of metal.

[0017] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0018] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0019] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0020] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0021] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0022] The working principle and advantages of this utility model are as follows: When the adjusting nut is rotated, its engaging component acts on the engaging portion of the elastic component. During the process of the engaging component and the engaging portion separating, the adjusting nut pushes the elastic component upwards, allowing the adjusting nut to rotate a certain angle circumferentially and move a certain distance axially (both angle and distance are fixed). The locking tongue and the adjusting nut abut against the inner surface of the elastic component. The locking tongue and the adjusting nut move synchronously through the elastic component, and the engaging portion abuts against the adjusting nut through the elastic component to interact with the engaging component. Adjustment only requires adjusting the adjusting nut, making the operation simple and tool-free, shortening the adjustment time for rapid adjustment. The adjusting nut and other structures can be repeatedly disassembled and reassembled for reuse, and the disassembly and assembly process is equally simple and quick. Furthermore, the elastic component is elastic, making this invention vibration-resistant during use. Simultaneously, the engaging component and the engaging portion are correspondingly arranged. During the rotation of the adjusting nut, multiple engaging components near the engaging portion can sequentially engage with the engaging portion, thus providing guidance to the operator rotating the adjusting nut and helping the operator judge the adjustment amount of the locking tongue. Attached Figure Description

[0023] Appendix Figure 1 This is a schematic diagram of the locking tongue adjustment assembly in the prior art;

[0024] Appendix Figure 2 This is a structural diagram of the application when it is used in a lock.

[0025] Appendix Figure 3 For the appendix Figure 2 A structural diagram from another perspective;

[0026] Appendix Figure 4 This is a schematic diagram of the locking tongue adjustment component according to an embodiment of the present utility model;

[0027] Appendix Figure 5 This is a schematic diagram showing the positional relationship between the adjusting nut and the elastic element in an embodiment of this utility model;

[0028] Appendix Figure 6 This is a schematic diagram showing the positional relationship between the elastic element and the engaging part in an embodiment of this utility model;

[0029] Appendix Figure 7 For the appendix Figure 5 A structural diagram from another perspective;

[0030] Appendix Figure 8 For the appendix Figure 5 Cross-sectional view;

[0031] Appendix Figure 9 For the appendix Figure 5 Another structural diagram from a different perspective.

[0032] In the above attached diagram: 1. Locking rod; 2. Adjusting nut; 3. Elastic element; 31. Fitting component; 32. Connecting component; 311. Through hole; 4. Locking tongue; 5. Engaging component; 6. Engaging part; 7. Washer. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0035] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0036] See appendix Figure 2 - Appendix Figure 9 The locking tongue 4 quick-adjustment assembly includes a locking rod 1, an adjusting nut 2, an elastic element 3, and a locking tongue 4. The locking rod 1 has threads on its outer wall, and the adjusting nut 2 is installed on the outside of the locking rod 1 via these threads. The locking tongue 4 is axially movable and circumferentially restricted, fitted onto the outside of the locking rod 1. Along the extension direction of the locking rod 1, at least one side of the adjusting nut 2 has multiple evenly distributed circumferentially distributed engaging parts 5 on its upper and lower surfaces. The elastic element 3 has engaging portions 6 corresponding to the engaging parts 5. The elastic element 3 is axially movable and circumferentially restricted, fitted onto the outside of the locking rod 1. The elastic element 3 has an elastic portion that always applies an elastic force towards the adjusting nut 2, and the locking tongue 4 and the adjusting nut 2 abut against the inner surface of the elastic element 3.

[0037] The quick-adjustment assembly for the latch is used to align the latch 4 with the lock hole. The adjustment process is as follows: rotate the adjusting nut 2 to move it along the extension direction of the locking rod 1. The moving adjusting nut 2 drives the latch 4 and the elastic element 3 to move. By adjusting the position of the latch 4, the alignment of the latch 4 with the lock hole is achieved.

[0038] Rotating the adjusting nut 2 causes the engaging member 5 on it to act on the engaging part 6 on the elastic member 3. During the process of the engaging member 5 separating from the engaging part 6, the adjusting nut 2 pushes the elastic member 3 upward, allowing the adjusting nut 2 to rotate a certain angle in the circumferential direction and move a certain distance in the axial direction (both angle and distance are fixed). The locking tongue 4 and the adjusting nut 2 are pressed against the inner surface of the elastic member 3. The locking tongue 4 and the adjusting nut 2 move synchronously through the elastic member 3. The engaging part 6 is pressed against the adjusting nut 2 through the elastic member 3 so as to interact with the engaging member 5.

[0039] The adjusting nut 2, locking tongue 4, and elastic element 3 are all sleeved on the outside of the locking rod 1 and can all move relative to the locking rod 1. The adjusting nut 2 is threadedly connected to the locking rod 1. The adjusting nut 2, locking tongue 4, and elastic element 3 can be regarded as an integral structure. In this integral structure, the portions of the adjusting nut 2 and locking tongue 4 are located inside the elastic element 3, thereby achieving synchronous movement of the three. The portion of locking tongue 4 is located between the adjusting nut 2 and the elastic element 3, thereby clamping and fixing the locking tongue 4 and preventing the locking tongue 4 from moving when it should not.

[0040] Compared to the traditional method of adjusting the locking tongue 4, this application only requires adjusting the adjusting nut 2 during adjustment. The operation is simple and does not require tools, which shortens the adjustment time and enables rapid adjustment. Furthermore, the adjusting nut 2 and other structures can be repeatedly disassembled and reassembled for reuse. The disassembly and assembly process is also simple and quick.

[0041] Both the locking tongue 4 and the elastic element 3 are axially movable and circumferentially restricted and fitted on the outside of the locking rod 1. For example, the cross-section of the locking rod 1 is approximately square, and both the locking tongue 4 and the elastic element 3 are provided with square holes for the locking rod 1 to pass through.

[0042] The elastic element 3 is elastic and can be made of different materials, such as rubber, depending on the actual situation; no limitation is made here. The use of the elastic element 3 enables the present application to resist vibration during use.

[0043] The engaging parts 5 and engaging parts 6 are correspondingly arranged. During the rotation of the adjusting nut 2, multiple engaging parts 5 near the engaging part 6 can engage with the engaging part 6 in sequence, thereby prompting the operator to rotate the adjusting nut 2 and helping the operator judge the adjustment amount of the locking tongue 4. The elastic element 3 also facilitates the sequential engagement of multiple engaging parts 5 near the engaging part 6 with the engaging part 6.

[0044] The process of helping operators determine the adjustment amount of the locking tongue 4 is further illustrated below: Six evenly distributed circumferentially arranged engaging parts 5 are provided on one side surface of the adjusting nut 2. Initially, one engaging part 5 engages with the engaging portion 6. During rotation of the adjusting nut 2, this engaging part 5 disengages from the engaging portion 6. When the other engaging part 5 engages with the engaging portion 6, the locking tongue 4 moves a certain distance (e.g., 0.25 mm). The operator can determine whether the engaging part 5 is engaged with the engaging portion 6 by the sound emitted when the engaging part 5 engages with the engaging portion 6 or by the change in resistance felt when rotating the adjusting nut 2.

[0045] Reference Appendix Figure 5In this embodiment, to improve the service life of the adjusting nut 2, multiple engaging members 5 are provided on both sides of the adjusting nut 2 along the extension direction of the locking rod 1, arranged in a uniform circumferential distribution. The engaging members 5 are uniformly distributed in a circumferential distribution, meaning they are evenly distributed around the center point of the corresponding surface of the adjusting nut 2. The number of engaging members 5 can be adjusted according to actual conditions.

[0046] Generally, it is sufficient to provide a locking member 5 on one side of the adjusting nut 2. Providing locking members 5 on both sides can improve the service life of the adjusting nut 2. When the locking member 5 on one side of the adjusting nut 2 is severely worn, the locking member 5 on the other side of the adjusting nut 2 can be used.

[0047] Reference Appendix Figure 5 Appendix Figure 6 Appendix Figure 8 In this embodiment, either the engaging member 5 or the engaging portion 6 is configured as a recessed structure, and the other is configured as a protruding structure.

[0048] Optionally, the recessed structure is configured as a groove, and correspondingly, the raised structure serves as a protrusion that fits into the groove. When the protrusion is inserted into the groove, the engaging member 5 and the engaging part 6 engage. The raised structure may also be selectively made of elastic materials such as rubber, depending on the actual situation.

[0049] Reference Appendix Figure 5 Appendix Figure 6 In this embodiment, to facilitate the operator's rotation of the adjusting nut 2, both the bottom surface of the recessed structure and the top surface of the protruding structure are arc-shaped or smooth curved surfaces. Taking the locking member 5 as an example of a recessed structure, the surface of the adjusting nut 2 is recessed inward to form a recessed structure. When the locking member 5 and the locking part 6 are engaged, the arc-shaped top surface of the protruding structure is attached to the arc-shaped bottom surface of the recessed structure. Taking the recessed structure as a groove as an example, the arc-shaped bottom surface is the bottom wall of the groove.

[0050] Optionally, the longitudinal sections of both the recessed structure and the raised structure are semi-circular or semi-elliptical, and both can be semi-cylinders or hemispheres.

[0051] By restricting the shape of the recessed and protruding structures, it is possible to avoid overcoming a large force during the process of the engaging part 5 and engaging part 6 gradually engaging and disengaging, thus making it easier for the operator to rotate the adjusting nut 2.

[0052] Reference Appendix Figure 6In this embodiment, the elastic element 3 includes two mating parts 31 spaced apart along the extension direction of the locking rod 1, and a connecting part 32 connected to the two mating parts 31 at both ends. The elastic part is formed by the two mating parts 31, or by the two mating parts 31 and the connecting part 32. The portion of the locking tongue 4 is located between the two mating parts 31 and the adjusting nut 2. The portion of the locking tongue 4 is located on either side of the adjusting nut 2 along the extension direction of the locking rod 1. The engaging part 6 is located on one of the mating parts 31. The portion of the locking tongue 4 and the engaging part 6 are located on both sides of the adjusting nut 2 along the extension direction of the locking rod 1. The mating part 31 is provided with a through hole 311 for the locking rod 1 to pass through.

[0053] The locking rod 1 has two fitting pieces 31 inserted sequentially through two through holes 311, allowing the elastic element 3 to be movably fitted onto the outside of the locking rod 1. The two fitting pieces 31 are connected by a connecting piece 32, and all three can be elastic structures. The shape and size of the through holes 311 can be adjusted according to the specific situation of the locking rod 1, and are not limited here. The thickness and cross-sectional shape of the two fitting pieces 31 may differ.

[0054] The elastic element 3 can be considered as a clamping structure, and the two mating parts 31 can be considered as the two clamping ends of the clamping structure. The two mating parts 31 clamp the portion of the locking tongue 4 and the adjusting nut 2 from both sides. The portion of the locking tongue 4 can be located between any one of the mating parts 31 and the adjusting nut 2. When the portion of the locking tongue 4 is located between one of the mating parts 31 and the adjusting nut 2, the engaging part 6 is provided on the other mating part 31, so that the portion of the locking tongue 4 and the engaging part 6 are respectively located on both sides of the adjusting nut 2 along the extension direction of the locking rod 1, thus preventing the locking tongue 4 from affecting the engaging part 5 and the engaging part 6.

[0055] Reference Appendix Figure 9 In this embodiment, for the purpose of facilitating the operator to rotate the adjusting nut 2, the projections of the two fitting parts 31 in the extension direction of the locking rod 1 are both covered by the projection of the adjusting nut 2 in the extension direction of the locking rod 1.

[0056] For ease of explanation, the adjusting nut 2 and the fitting component 31 are designed as coaxial cylindrical structures. The radius of the cross-section of the adjusting nut 2 is set to 3 cm, and the radius of the cross-section of the fitting component 31 is set to 2.5 cm. This ensures that the projections of both fitting components 31 in the extension direction of the locking rod 1 are covered by the projection of the adjusting nut 2 in the extension direction of the locking rod 1. The fitting component 31 and the adjusting nut 2 do not necessarily need to be cylindrical; the above descriptions of shape and size are merely for illustrative purposes.

[0057] The configuration in this embodiment provides convenience for the operator to rotate the adjusting nut 2. At this time, the fitting part 31 can not prevent the operator from rotating the adjusting nut 2, and the operator can rotate the adjusting nut 2 without inserting his / her fingers into the elastic part 3.

[0058] Reference Appendix Figure 7 Appendix Figure 9 In this embodiment, also for the purpose of facilitating the operator's rotation of the adjusting nut 2, at least a portion of the projected outer edge of the adjusting nut 2 extends beyond the projected outer edge of the connecting sub-piece 32 along the first direction (parallel to the X direction in the figure). The understanding of the solution in this embodiment can be referred to the example in the previous embodiment.

[0059] The configuration in this embodiment also facilitates the operator's rotation of the adjusting nut 2, allowing the operator to rotate the adjusting nut 2 from more directions. Furthermore, this configuration results in a smaller connecting component 32, reducing cost and weight; the aforementioned configuration of the fitting component 31 also achieves the same effect.

[0060] In this embodiment, the elastic element 3 is made of plastic. Optionally, the elastic element 3 includes at least one of the following: thermoplastic elastomer (TPE), thermoplastic rubber (TPR), and thermoplastic polyurethane (TPU).

[0061] Plastic materials typically possess wear-resistant, tear-resistant, and corrosion-resistant properties, making them less prone to damage and extending the service life of the elastic element 3, while reducing the frequency of replacement and maintenance. Compared to materials such as metal, plastic materials are lighter, making the elastic element 3 more portable in applications and contributing to overall weight reduction.

[0062] The elastic element 3 can also be made of metal, such as some thin sheet metals which have a certain degree of elasticity.

[0063] In this embodiment, the adjusting nut 2 is made of metal. The metal materials used for the adjusting nut 2 include, but are not limited to, stainless steel, aluminum alloy, carbon steel, and copper. The choice of metal material depends on factors such as the specific application scenario, required performance, and cost. Metal materials have high strength and hardness, and can withstand large loads, which allows the adjusting nut 2 to maintain stable performance.

[0064] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A quick-adjustment assembly for a locking tongue, comprising a locking rod (1), an adjusting nut (2), and a locking tongue (4), wherein the locking rod (1) has threads on its outer wall, and the adjusting nut (2) is installed on the outside of the locking rod (1) through the threads; the locking tongue (4) is axially movable and circumferentially restricted and sleeved on the outside of the locking rod (1); characterized in that: The fast adjustment assembly of the locking tongue also includes an elastic element (3) that is axially movable and circumferentially restricted and sleeved on the outside of the locking rod (1). The elastic element (3) has an elastic part that always applies an elastic force toward the adjusting nut (2). The locking tongue (4) and the adjusting nut (2) abut against the inner surface of the elastic element (3). Along the extension direction of the locking rod (1), at least one side of the adjusting nut (2) is provided with a plurality of uniformly circumferentially distributed locking parts (5). The elastic element (3) is provided with locking parts (6) corresponding to the locking parts (5).

2. The locking tongue quick-adjustment assembly according to claim 1, characterized in that: Along the extension direction of the locking rod (1), multiple locking parts (5) are provided on both sides of the adjusting nut (2) in a uniform circumferential distribution.

3. The locking tongue quick-adjustment assembly according to claim 1, characterized in that: The engaging member (5) is configured as a recessed structure, and the engaging part (6) is configured as a protruding structure.

4. The quick-adjustment assembly for the locking tongue according to claim 1, characterized in that: The engaging member (5) is configured as a protruding structure, and the engaging part (6) is configured as a recessed structure.

5. The locking tongue quick-adjustment assembly according to claim 3 or 4, characterized in that: The bottom surface of the recessed structure and the top surface of the protruding structure are both arc-shaped or smooth curved surfaces.

6. The quick-adjustment assembly for the locking tongue according to claim 1, characterized in that: The elastic element (3) includes two mating parts (31) spaced apart along the extension direction of the locking rod (1), and a connecting part (32) connected to the two mating parts (31) at both ends. The elastic part is formed by the two mating parts (31), or by the two mating parts (31) and the connecting part (32). The locking tongue (4) is located between the two mating parts (31) and the adjusting nut (2). The locking tongue (4) is located on any side of the adjusting nut (2) along the extension direction of the locking rod (1). The engaging part (6) is located on one of the mating parts (31). The locking tongue (4) and the engaging part (6) are located on both sides of the adjusting nut (2) along the extension direction of the locking rod (1). The mating parts (31) are provided with through holes (311) for the locking rod (1) to pass through.

7. The locking tongue quick-adjustment assembly according to claim 6, characterized in that: Along the extension direction of the locking rod (1), the projections of the two fitting parts (31) are covered by the projection of the adjusting nut (2).

8. The quick-adjustment assembly for the locking tongue according to claim 6 or 7, characterized in that: Along the first direction, at least a portion of the projected outer edge of the adjusting nut (2) extends beyond the projected outer edge of the connecting sub-piece (32).

9. The quick-adjustment assembly for the locking tongue according to claim 1, characterized in that: The elastic element (3) is made of plastic.

10. The quick-adjustment assembly for the locking tongue according to claim 1, characterized in that: The adjusting nut (2) is made of metal.

Images