Connecting lock with spring structure
By incorporating an adjustment groove and spring structure into the lock body of the female latch, the problems of complex structure and low production efficiency of existing bag locks are solved, achieving a simple and easy-to-use lock design, reducing costs and improving the reliability of the locking function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINLUAN HARDWARE PROD CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-26
AI Technical Summary
Existing luggage locks have complex structures, high production costs, low production efficiency, and are prone to damage, leading to locking failure.
A spring-loaded connecting lock is designed. An adjustment groove is set on the lock body of the female latch, the lock cylinder is embedded in the adjustment groove, the spring pushes the lock cylinder to maintain the locked state, and the adjustment part slides the lock cylinder to unlock. The structure is simple and easy to manufacture and assemble.
It improves production and assembly efficiency, reduces product costs, enhances the practicality of locks, and prevents locking function failure.
Smart Images
Figure CN224282248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a lock structure, and more particularly to a connecting lock with a spring structure. Background Technology
[0002] Luggage locks are locks specifically designed for luggage, backpacks, handbags, and other luggage products. The lock consists of two parts: a male buckle and a female buckle. The male buckle and female buckle are installed on the main body and the lid of the luggage, respectively. When the male buckle and female buckle are installed together, the lid of the luggage can be tightly closed on the main body.
[0003] For some consumers, the only requirement is that the luggage lock has a locking function, a long service life, and is not easily damaged. They do not require the luggage lock to have too many additional functions. However, some existing luggage locks have a complex overall structure (as shown in patent CN221422977U), which is not convenient for production and assembly, increases production costs, reduces production efficiency, and causes trouble for manufacturers. Moreover, when there are too many luggage lock components, they are more likely to be damaged during use, leading to the failure of the locking function. Utility Model Content
[0004] Therefore, it is necessary to provide a connection lock with a spring structure to address the shortcomings of the existing technology.
[0005] A spring-loaded connecting lock includes a male buckle and a female buckle that mates with the male buckle. The male buckle is freely detachable from the female buckle and has a first hook. The female buckle includes a lock body, a lock cover, a lock cylinder and a spring located between the lock body and the lock cover, and an adjusting member mounted on the lock cylinder. The two ends of the spring respectively abut against the lock cylinder and the lock body. The adjusting member extends from the lock body, and the lock cylinder can slide and adjust between the lock body and the lock cover. An adjusting groove is provided on the lock body, and the lock cylinder is embedded in the adjusting groove. The adjusting groove guides the lock cylinder. The lock cylinder has a second hook. After the female buckle and the male buckle are mated and installed, and the adjusting member is released, the spring pushes the lock cylinder, keeping the second hook of the lock cylinder locked to the first hook of the male buckle. After the lock cylinder is slid in the unlocking direction by the adjusting member, the second hook retracts from the first hook, and the lock cylinder elastically contracts.
[0006] In one embodiment, the mating direction of the female and male latches is perpendicular to the extension direction of the adjustment groove, and the lock cylinder can be adjusted along the extension direction of the adjustment groove; two limiting surfaces are formed on both sides of the groove wall in the adjustment groove along the adjustment direction of the lock cylinder, and the limiting surfaces guide the lock cylinder.
[0007] In one embodiment, the adjusting groove forms two mating surfaces on the front and rear groove walls in the adjusting direction of the lock cylinder. The lock body is provided with a plurality of first positioning grooves on one mating surface. The lock cylinder is provided with a plurality of second positioning grooves on the rear side along the adjusting direction. The second positioning grooves on the lock cylinder correspond one-to-one with the first positioning grooves on the lock body and are aligned with each other. Each spring is installed at both ends in the first positioning groove and the second positioning groove corresponding to the first positioning groove.
[0008] In one embodiment, the outer contour of the second hook portion facing away from the second positioning groove and the spring is provided with a guide surface.
[0009] In one embodiment, the lock body is further provided with an opening, which extends horizontally from the outer side of the lock body to one of the limiting surfaces of the lock body; the second hook extends into the inner side of the opening, and when the male buckle is not installed on the female buckle, the width of the opening formed between the second hook and the opening is greater than the width of the first hook, and the first hook on the male buckle is engaged from the opening formed between the second hook and the opening.
[0010] In one embodiment, the lock body is further provided with an adjustment hole, which extends downward from the upper end of the lock body to the adjustment groove. The adjustment hole is an elongated hole, and the long axis of the adjustment hole extends in the same direction as the adjustment direction of the lock cylinder in the adjustment groove. The adjustment component extends into the adjustment hole.
[0011] In one embodiment, the lock cylinder is further provided with a through hole that penetrates the lock cylinder in a vertical direction. The adjusting component includes an adjusting seat and a fixing screw. The adjusting seat includes an adjusting head and an adjusting rod connected to the adjusting head. The adjusting rod of the adjusting seat of the adjusting component extends into the adjusting hole. The adjusting head of the adjusting seat is located on the outside of the lock body. The fixing screw of the adjusting component passes through the through hole and is installed on the adjusting rod.
[0012] In one embodiment, the male buckle includes a main body and a gasket. The main body includes an upper plate, a front connecting plate vertically connected to the front side of the upper plate, and a connecting post vertically connected to the upper plate and located behind the front connecting plate. The first hook is connected to the front connecting plate, and the gasket and connecting post are attached to each other and arranged opposite to the upper plate.
[0013] In one embodiment, the bottom of the lock body is provided with an upwardly extending receiving groove, an adjustment groove is provided at the bottom of the receiving groove, and the lock cover is embedded into the receiving groove.
[0014] The advantages of this utility model of a spring-structured connecting lock are as follows: by setting an adjustment groove on the lock body of the female latch, the lock cylinder is embedded in the adjustment groove, the adjustment groove guides the lock cylinder, the spring is located behind the lock cylinder along the adjustment direction, the adjustment component is installed on the lock cylinder for adjusting the lock cylinder, the spring pushes the lock cylinder to keep the lock cylinder in the locked male latch state, and after the lock cylinder is slid in the unlocking direction by the adjustment component, the lock cylinder separates from the male latch. This utility model has a simple structure, effectively improves production and assembly efficiency, reduces product costs, and has strong practicality. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the male and female buckles when they are installed together in this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the male buckle after it is removed from the female buckle in this utility model;
[0017] Figure 3 , Figure 4 These are exploded views of the present invention from different angles;
[0018] Figure 5 This is a cross-sectional view of the connecting lock with a spring structure according to this utility model. Detailed Implementation
[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0025] Please see Figures 1 to 5 This utility model provides a connecting lock with a spring structure, which is used on bags such as handbags, backpacks, shoulder bags, and wallets. The connecting lock with the spring structure includes a male buckle 10 and a female buckle 20 that cooperates with the male buckle 10. The male buckle 10 can be freely attached to and detached from the female buckle 20.
[0026] The male buckle 10 includes a main body 11, a gasket 12, and a first locking screw 13 that mounts the gasket 12 onto the main body 11. The main body 11 includes an upper plate 111, a front connecting plate 112 vertically connected to the front side of the upper plate 111, a first hook 113 connected to the front connecting plate 112, and a connecting post 114 vertically connected to the upper plate 111 and located behind the front connecting plate 112. The gasket 12 and the connecting post 114 are attached to each other and arranged opposite to the upper plate 111. The first locking screw 13 passes through the gasket 12 and is mounted on the connecting post 114. When the male buckle 10 is installed on the bag cover, the connecting post 114 passes through the bag cover. The upper plate 111 and the gasket 12 are located on both sides of the bag cover.
[0027] The female buckle 20 includes a lock body 21, a lock cover 22, a second locking screw 23 that mounts the lock cover 22 onto the lock body 21, a lock cylinder 24 and a spring 25 located between the lock body 21 and the lock cover 22, and an adjusting member 26 mounted on the lock cylinder 24. The two ends of the spring 25 respectively abut against the lock cylinder 24 and the lock body 21. The adjusting member 26 extends from the lock body 21, and the lock cylinder 24 can slide and adjust between the lock body 21 and the lock cover 22. After the female buckle 20 is installed in conjunction with the male buckle 10 and the adjusting member 26 is released, the spring 25 pushes the lock cylinder 24, keeping the lock cylinder 24 locked to the male buckle 10. After the lock cylinder 24 is slid in the unlocking direction by the adjusting member 26, the lock cylinder 24 separates from the male buckle 10, and the lock cylinder 24 elastically contracts.
[0028] Specifically, the lock body 21 has an upwardly extending receiving groove 211 at its bottom, and the lock body 21 further has an adjusting groove 212 at the bottom of the receiving groove 211. The mating direction of the female buckle 20 and the male buckle 10 is perpendicular to the extending direction of the adjusting groove 212. The lock cylinder 24 can be adjusted along the extending direction of the adjusting groove 212. Two limiting surfaces 215 are formed on the two side walls of the adjusting groove 212 in the adjusting direction of the lock cylinder 24. The limiting surfaces 215 guide the lock cylinder 24. Two mating surfaces 216 are formed on the front and rear walls of the adjusting groove 212 in the adjusting direction of the lock cylinder 24. The lock body 21 has a plurality of first positioning grooves 217 on one of the mating surfaces 216. The lock body 21 is also provided with an adjustment hole 213 and an opening 214. The adjustment hole 213 extends downward from the upper end of the lock body 21 to the adjustment groove 212. The adjustment hole 213 is an elongated hole, and the long axis of the adjustment hole 213 extends in the same direction as the adjustment direction of the lock cylinder 24 in the adjustment groove 212. The opening 214 extends horizontally inward from the outer side of the lock body 21 to one of the limiting surfaces 215 of the lock body 21.
[0029] The lock cylinder 24 has several second positioning grooves 241 on its rear side along the adjustment direction. In addition, a second hook 242 is provided on one side of the lock cylinder 24. The outer contour of the second hook 242 facing away from the second positioning groove 241 and the spring has a guide surface 2421. The lock cylinder 24 also has a through hole 243, which penetrates the lock cylinder 24 in a vertical direction.
[0030] The adjusting component 26 includes an adjusting base 261 and a fixing screw 262. The adjusting base 261 includes an adjusting head 263 and an adjusting rod 264 connected to the adjusting head 263.
[0031] During assembly, the lock cylinder 24 is embedded in the adjustment groove 212. The second positioning groove 241 on the lock cylinder 24 corresponds one-to-one with the first positioning groove 217 on the lock body 21 and is aligned with each other. Each spring 25 is installed at both ends in the first positioning groove 217 and the second positioning groove 241 corresponding to the first positioning groove 217, respectively. The first positioning groove 217 and the second positioning groove 241 cooperate to limit the spring 25 and prevent the spring 25 from shifting. The second hook 242 extends into the inner side of the opening 214. In the initial state (i.e., when the male buckle 10 is not installed on the female buckle 20), the width of the opening formed between the second hook 242 and the opening 214 is greater than the width of the first hook 113. The adjusting rod 264 of the adjusting seat 261 of the adjusting member 26 extends into the adjusting hole 213. The adjusting head 263 of the adjusting seat 261 is located on the outside of the lock body 21. The fixing screw 262 of the adjusting member 26 passes through the through hole 243 and is installed on the adjusting rod 264. Finally, the lock cover 22 is inserted into the receiving groove 211, and the second locking screw 23 installs the lock cover 22 onto the lock body 21.
[0032] When the male buckle 10 is installed on the female buckle 20, the first hook 113 on the male buckle 10 is inserted into the opening formed between the second hook 242 and the opening 214. The first hook 113 presses the second hook 242 of the lock cylinder 24 along the adjustment direction of the lock cylinder 24, causing the lock cylinder 24 to move towards the spring 25. The spring 25 elastically contracts. After the second hook 242 slides past the first hook 113, the spring 25 pushes the lock cylinder 24 back to its original position, so that the second hook 242 is engaged with the first hook 113, and the lock cylinder 24 abuts against the mating surface 216 on the side away from the spring 25.
[0033] When the male latch 10 needs to be removed from the female latch 20, the adjusting head 263 of the adjusting member 26 is pushed horizontally. During the shifting process, the adjusting member 26 drives the lock cylinder 24 to adjust synchronously, and the second hook 242 disengages from the first hook 113, causing the spring 25 to elastically contract. After removing the male latch 10, the adjusting head 263 is released again, and the spring 25 pushes the lock cylinder 24 back to its original position.
[0034] The beneficial effects of this utility model of a spring-structured connecting lock are as follows: by setting an adjustment groove 212 on the lock body 21 of the female buckle 20, the lock cylinder 24 is embedded in the adjustment groove 212, the adjustment groove 212 guides the lock cylinder 24, the spring 25 is located behind the lock cylinder 24 along the adjustment direction, and the adjustment member 26 is installed on the lock cylinder 24 to adjust the position of the lock cylinder 24. The spring 25 pushes the lock cylinder 24, keeping the lock cylinder 24 in the locked male buckle 10 state. After the lock cylinder 24 is slid in the unlocking direction by the adjustment member 26, the lock cylinder 24 separates from the male buckle 10. This utility model has a simple structure, effectively improves production and assembly efficiency, reduces product costs, and has strong practicality.
[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A connecting lock with a spring structure, comprising a male buckle and a female buckle matched with the male buckle, the male buckle being freely detachable on the female buckle, characterized in that, The male buckle has a first hook. The female buckle includes a lock body, a lock cover, a lock cylinder and a spring located between the lock body and the lock cover, and an adjusting member installed on the lock cylinder. The two ends of the spring respectively abut against the lock cylinder and the lock body. The adjusting member extends from the lock body. The lock cylinder can slide and adjust between the lock body and the lock cover. An adjusting groove is provided on the lock body. The lock cylinder is embedded in the adjusting groove and the adjusting groove guides the lock cylinder. The lock cylinder has a second hook. After the female buckle and the male buckle are installed together and the adjusting member is released, the spring pushes the lock cylinder, so that the second hook of the lock cylinder and the first hook of the male buckle are locked together. After the lock cylinder is slid in the unlocking direction by the adjusting member, the second hook is disengaged from the first hook, and the lock cylinder elastically contracts.
2. The connection lock with spring structure according to claim 1, characterized in that, The mating direction of the female and male latches is perpendicular to the extension direction of the adjustment groove, and the lock cylinder can be adjusted along the extension direction of the adjustment groove; two limiting surfaces are formed on both sides of the groove wall in the adjustment groove along the adjustment direction of the lock cylinder, and the limiting surfaces guide the lock cylinder.
3. The connection lock with spring structure according to claim 1, characterized in that, The adjustment groove forms two mating surfaces on the front and rear groove walls in the adjustment direction of the lock cylinder. The lock body is provided with a plurality of first positioning grooves on one mating surface. The lock cylinder is provided with a plurality of second positioning grooves on the rear side along the adjustment direction. The second positioning grooves on the lock cylinder correspond one-to-one with the first positioning grooves on the lock body and are aligned with each other. The two ends of each spring are respectively installed in the first positioning groove and the second positioning groove corresponding to the first positioning groove.
4. The connection lock with spring structure according to claim 3, characterized in that, The outer contour of the second hook portion facing away from the second positioning groove and the spring has a guide surface.
5. The connection lock with spring structure according to claim 3, characterized in that, The lock body is also provided with an opening, which extends horizontally from the outer side of the lock body to one of the limiting surfaces of the lock body; the second hook extends into the inner side of the opening, and when the male buckle is not installed on the female buckle, the width of the opening formed between the second hook and the opening is greater than the width of the first hook, and the first hook on the male buckle is engaged from the opening formed between the second hook and the opening.
6. The connection lock with spring structure according to claim 1, characterized in that, The lock body is also provided with an adjustment hole, which extends from the upper end of the lock body downwards into the adjustment groove. The adjustment hole is an elongated hole, and the long axis of the adjustment hole extends in the same direction as the adjustment direction of the lock cylinder in the adjustment groove. The adjustment component extends into the adjustment hole.
7. The connection lock with spring structure according to claim 1, characterized in that, The lock cylinder is also provided with a through hole that penetrates the lock cylinder vertically. The adjusting component includes an adjusting seat and a fixing screw. The adjusting seat includes an adjusting head and an adjusting rod connected to the adjusting head. The adjusting rod of the adjusting seat of the adjusting component extends into the adjusting hole. The adjusting head of the adjusting seat is located on the outside of the lock body. The fixing screw of the adjusting component passes through the through hole and is installed on the adjusting rod.
8. The connection lock with spring structure according to claim 7, characterized in that, The male buckle includes a main body and a gasket. The main body includes an upper plate, a front connecting plate vertically connected to the front side of the upper plate, and a connecting post vertically connected to the upper plate and located behind the front connecting plate. The first hook is connected to the front connecting plate, and the gasket and connecting post are attached to each other and arranged opposite to the upper plate.
9. The connection lock with spring structure according to claim 8, characterized in that, The bottom of the lock body is provided with an upwardly extending receiving groove, and an adjustment groove is located at the bottom of the receiving groove, into which the lock cover is embedded.