Hook and loop fastener for easy assembly
By setting side openings, mounting slots, and guide slots on the hook body, and combining them with the latch assembly and manual lever, a twist-free assembly method is achieved, solving the problems of hook deformation and high defect rate, and improving production quality and assembly efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINLUAN HARDWARE PROD CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-07
AI Technical Summary
The existing bag hooks have small side openings, requiring the hook to be forcibly twisted to insert the latch, resulting in deformation and a high defect rate, thus reducing production quality.
A hook and latch designed for easy assembly is described. By setting a side opening, mounting groove and guide groove on the hook and latch body, and combining it with a latch assembly, a hand lever and a mounting screw, assembly can be carried out using a screwdriver, avoiding hook twisting, simplifying the process and preventing deformation.
Reduce processing steps, lower defect rate, improve production quality and assembly efficiency, and simplify user operation.
Smart Images

Figure CN224461240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag hook and buckle technology, and in particular to a hook and buckle that is easy to assemble. Background Technology
[0002] Spring hooks are a type of connector widely used in various industries. Currently, many bag hooks use springs to connect the latches, utilizing the spring's elasticity to drive the latch movement.
[0003] like Figure 1 The side opening on the hook body shown is small, while the snap button is generally designed as a whole. In order to insert the snap button through the side opening, the hook part of the hook body must be forcibly twisted before surface treatment. After the snap button is inserted, the hook part is reset. This not only increases the number of processes, but also makes the hook body easy to deform during the reset process, resulting in a higher defect rate and reduced production quality. Utility Model Content
[0004] Therefore, it is necessary to address the issue that the existing hook and buckle bodies have small side openings, requiring the hook part of the hook and buckle body to be forcibly twisted, and then the hook part to be reset after the buckle door is installed. This not only increases the number of processes, but also easily causes the buckle body to deform during the reset process, resulting in a higher defect rate and reduced production quality. Therefore, it is necessary to provide a hook and buckle that is easy to assemble.
[0005] A hook and latch for easy assembly includes a hook and latch body, a latch assembly, an elastic element, and a sealing pin. The hook and latch body has a side opening and a guide groove at its side end, and an axial mounting groove is formed in the hook and latch body. The mounting groove, the side opening, and the guide groove are interconnected. The latch assembly includes a latch post, a manual lever, and a mounting screw. The latch post has an axial mounting screw hole. The upper end of the mounting screw passes through the mounting groove and the manual lever and is threadedly connected to the mounting screw hole. The side end of the manual lever passes through the guide groove and extends out of the hook and latch body. The sealing pin is threadedly connected to the mounting groove. The elastic element is disposed in the mounting groove, with one end abutting against the mounting screw and the other end abutting against the sealing pin.
[0006] The aforementioned easy-to-assemble hook and latch assembly includes a latch post, a manual lever, and a mounting screw. The latch post and manual lever can be inserted through the side opening. Then, using a screwdriver, the upper end of the mounting screw is threaded through the mounting slot and the manual lever to the mounting screw hole. The elastic element is then inserted into the mounting slot, and the sealing pin is threaded into the mounting slot. This assembly method eliminates the need to twist the hook part of the hook and latch body, reducing processing steps and effectively preventing deformation of the hook and latch body, thus improving the yield rate and production quality. Furthermore, the entire installation process is simple and convenient for users, effectively improving assembly efficiency.
[0007] In one embodiment, the hook body includes a buckle body and a hook connected to the buckle body. A side opening is provided between the hook and the buckle body. The mounting groove is located in the axial direction of the buckle body. A lower opening is provided at the end of the buckle body away from the hook. The lower opening communicates with the mounting groove. A guide groove is provided at the side end of the buckle body. The guide groove communicates with the mounting groove.
[0008] In one embodiment, the hand lever includes a sleeve portion, a guide portion connected to the sleeve portion, and a hand lever portion connected to the guide portion. The sleeve portion is fitted onto the mounting screw, the guide portion extends into the guide groove, and the hand lever portion extends out of the hook body.
[0009] In one embodiment, a positioning groove is provided at the connection between the sleeve portion and the guide portion.
[0010] In one embodiment, the mounting screw includes a main body, a fixing part connected to the main body, and a mounting part connected to the fixing part. The main body passes through the mounting through groove, the sleeve part is fitted over the fixing part, and the mounting part is threadedly connected to the mounting screw hole.
[0011] In one embodiment, the end of the main body away from the fixing part is provided with a tool groove that can engage with the screwdriver tip.
[0012] In one embodiment, the sealing pin includes a sealing portion and a pin portion connected to the sealing portion, the sealing portion sealing the lower opening, and the pin portion being threadedly connected to the mounting barrel groove.
[0013] In one embodiment, the pin is provided with a limiting groove in the axial direction, and the elastic member abuts against the bottom of the limiting groove. Attached Figure Description
[0014] Figure 1 This is a diagram showing the internal structure of a spring hook.
[0015] Figure 2 This is an internal structural diagram of a hook and clasp that is easy to assemble, according to one embodiment of the present invention.
[0016] Figure 3 For example Figure 2 The diagram shows the structure of the hook body in a hook-and-loop fastener designed for easy assembly.
[0017] Figure 4 For example Figure 2 The diagram shows the structure of the hand-operated component in the hook and clasp, which is designed for easy assembly.
[0018] The meanings of the numbers in the attached diagram are as follows:
[0019] 100 - Easy-to-assemble hooks and clasps;
[0020] 10-Hook body, 11-Hook body, 12-Hook, 13-Side opening, 14-Mounting through groove, 15-Guide groove;
[0021] 20-Door latch assembly, 21-Door latch post, 211-Mounting screw hole, 22-Hand lever, 221-Sleeve part, 222-Guide part, 223-Hand lever part, 23-Mounting screw, 231-Main body part, 232-Fixing part, 233-Mounting part, 234-Knife head groove;
[0022] 30 - Elastic element;
[0023] 40 - Sealing pin, 41 - Sealing part, 42 - Pin part;
[0024] 200 - Knock on the door. Detailed Implementation
[0025] 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.
[0026] 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.
[0027] 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.
[0028] 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.
[0029] 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.
[0030] 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.
[0031] Please see Figure 1 The hook 100, which is easy to assemble according to one embodiment of the present utility model, includes a hook body 10, a latch assembly 20, an elastic element 30, and a sealing pin 40.
[0032] Please see Figure 2 and Figure 3 The hook body 10 includes a buckle body 11 and a hook 12 connected to the buckle body 11. A side opening 13 is provided between the hook 12 and the buckle body 11. An axial mounting groove 14 is provided on the buckle body 11. A lower opening is provided at the end of the buckle body 11 away from the hook 12. The lower opening communicates with the mounting groove 14. A guide groove 15 is provided on the side end of the buckle body. The guide groove 15, the mounting groove 14 and the side opening 13 are interconnected.
[0033] Please see Figure 2 and Figure 4The latch assembly 20 includes a latch post 21, a manual lever 22, and a mounting screw 23. The latch post 21 has an axially formed mounting screw hole 211. The manual lever 22 includes a sleeve portion 221, a guide portion 222 connecting the sleeve portion 221, and a manual lever portion 223 connecting the guide portion 222. The sleeve portion 221 is fitted onto the mounting screw 23, and its outer diameter is smaller than the diameter of the mounting groove 14. The guide portion 222 extends into the guide groove 15. A positioning groove is provided at the connection between the sleeve portion 221 and the guide portion 222. The positioning groove temporarily positions the latch post 21 during installation, facilitating subsequent assembly and effectively improving assembly efficiency. The manual lever portion 223 extends beyond the hook body 10.
[0034] Please see Figure 2 and Figure 4 The mounting screw 23 includes a main body 231, a fixing part 232 connecting the main body 231, and a mounting part 233 connecting the fixing part 232. The main body 231 passes through the mounting through groove 14, and the end of the main body 231 away from the fixing part 232 is provided with a screwdriver tip groove 234 that can engage with the screwdriver tip. In this embodiment, the screwdriver tip groove 234 is a slotted groove; in other embodiments, the screwdriver tip groove 234 can be a cross groove. The sleeve part 221 is fitted onto the fixing part 232, and the mounting part 233 is threadedly connected to the mounting screw hole 211.
[0035] Please see Figure 2 and Figure 4 The sealing pin 40 includes a sealing part 41 and a pin part 42 connecting the sealing part 41. The sealing part 41 seals the lower opening, and the pin part 42 is threadedly connected to the mounting barrel groove. The pin part 42 is provided with a limiting groove in the axial direction. The elastic member 30 is provided in the mounting through groove 14. One end of the elastic member 30 abuts against the bottom of the limiting groove, and the other end of the elastic member 30 abuts against the main body part 231.
[0036] The working principle of the hook 100, which is easy to assemble in this embodiment, is as follows: During assembly, the sleeve part 221 of the hand lever 22 is first inserted into the mounting through groove 14, and at the same time, the guide part 222 is inserted into the guide groove 15. Then, one end of the latch 21 abuts against the hook part 12, and the other end of the latch 21 extends into the positioning groove. Then, the mounting screw 23 extends into the mounting barrel groove from the lower opening. The mounting part 233 is threadedly connected to the mounting screw hole 211 using a screwdriver. After that, one end of the elastic member 30 abuts against the main body part 231, and the other end of the elastic member 30 abuts against the bottom of the limiting groove. At the same time, the pin part 42 is threadedly connected to the mounting barrel groove, and the sealing part 41 seals the lower opening, thus completing the assembly.
[0037] The beneficial effects of this utility model are as follows: Since the latch assembly 20 includes a latch post 21, a manual lever 22, and a mounting screw 23, the latch post 21 and the manual lever 22 can be inserted from the side opening 13. Then, using a screwdriver, the upper end of the mounting screw 23 passes through the mounting slot 14 and the manual lever 22 is threadedly connected to the mounting screw hole 211. The elastic element 30 is then inserted into the mounting slot 14, and the sealing pin 40 is threadedly connected to the mounting slot 14. This assembly method eliminates the need to twist the hook part 12 of the hook body 10, reducing processing steps and effectively preventing deformation of the hook body 10, thus improving the yield rate and production quality. Furthermore, the entire installation process is simple and convenient for users, effectively improving assembly efficiency.
[0038] 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.
[0039] 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 hook and clasp that is easy to assemble, characterized in that, The device includes a hook body, a latch assembly, an elastic element, and a sealing pin. The hook body has a side opening and a guide groove at its side end, and an axial mounting groove. The mounting groove, the side opening, and the guide groove are interconnected. The latch assembly includes a latch post, a hand lever, and a mounting screw. The latch post has an axial mounting screw hole. The upper end of the mounting screw passes through the mounting groove and the hand lever and is threaded into the mounting screw hole. The side end of the hand lever extends out of the hook body through the guide groove. The sealing pin is threaded into the mounting groove. The elastic element is located in the mounting groove, with one end abutting against the mounting screw and the other end abutting against the sealing pin.
2. The easy-to-assemble hook and clasp according to claim 1, characterized in that, The hook body includes a buckle body and a hook connected to the buckle body. A side opening is provided between the hook and the buckle body. The mounting groove is located in the axial direction of the buckle body. A lower opening is provided at the end of the buckle body away from the hook. The lower opening communicates with the mounting groove. A guide groove is provided at the side end of the buckle body and communicates with the mounting groove.
3. The easy-to-assemble hook and clasp according to claim 1, characterized in that, The hand lever includes a sleeve portion, a guide portion connected to the sleeve portion, and a hand lever portion connected to the guide portion. The sleeve portion is fitted onto the mounting screw, the guide portion extends into the guide groove, and the hand lever portion extends out of the hook body.
4. The easy-to-assemble hook and clasp according to claim 3, characterized in that, A positioning groove is provided at the connection between the sleeve part and the guide part.
5. The easy-to-assemble hook and clasp according to claim 3, characterized in that, The mounting screw includes a main body, a fixing part connected to the main body, and a mounting part connected to the fixing part. The main body passes through the mounting through groove, the sleeve part is fitted over the fixing part, and the mounting part is threadedly connected to the mounting screw hole.
6. The easy-to-assemble hook and clasp according to claim 5, characterized in that, The end of the main body away from the fixing part is provided with a tool groove that can engage with the screwdriver tip.
7. The easy-to-assemble hook and clasp according to claim 2, characterized in that, The sealing pin includes a sealing part and a pin part connecting the sealing part. The sealing part seals the lower opening, and the pin part is threadedly connected to the mounting barrel groove.
8. The easy-to-assemble hook and clasp according to claim 7, characterized in that, The pin is provided with a limiting groove in the axial direction, and the elastic element abuts against the bottom of the limiting groove.