Contact piece locking structure
By designing a locking structure with the tapered elastic plastic snap buckle and the housing limit on the contact piece, the problem of difficult detection of the anti-exit structure of the existing contact piece is solved, efficient assembly and reliable connection are achieved, and resource waste is avoided.
Patent Information
- Application Number
- CN202421901216.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The snaps of the existing contact anti-exit structure are usually installed inside the shell and are blocked by other accessories such as covers, which are difficult to detect, resulting in difficult installation errors being discovered in a timely manner and waste of resources.
The elastic plastic snap-on design is adopted, and the elastic plastic snap-on sleeve with a conical structure is installed on the contact piece. By cooperating with the limit part and the limit part in the installation shell, the contact piece and the shell are locked, simplifying the assembly process and preventing installation errors.
Improve production efficiency, ensure product quality and reliability, avoid installation errors, and save materials.
Smart Images
Figure CN223093177U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fixing structure of a connector contact, and more specifically, to a locking structure of a contact. Background Art
[0002] In modern electronic devices and mechanical systems, the stable connection and anti-withdrawal structure of contacts are crucial, which are directly related to the safe operation and reliability of the devices. At present, the widely adopted anti-withdrawal structure of contacts on the market usually consists of accessories such as a cover plate locked to the housing, the housing, and a buckle (claw). This structure ensures that the contact will not loosen or withdraw due to vibration, impact, or other external forces during operation through the tight fit between the buckle and the housing and the locking effect of the cover plate.
[0003] Its assembly process usually follows the following sequence: First, pre-assemble the buckle (claw) to the preset position on the housing; then, install the contact into the housing; finally, close the housing with the cover plate and use the locking mechanism of the cover plate to firmly lock the buckle on the housing, meeting the basic anti-withdrawal requirements to a certain extent.
[0004] In the existing anti-withdrawal structure of contacts, the buckle is usually installed inside the housing and is blocked by other accessories such as the cover plate, making it difficult to detect. Once the buckle is installed in the wrong direction, it is often difficult to detect in a timely manner during subsequent inspection, and the already assembled related accessories can only be scrapped directly and are difficult to rework, resulting in waste of resources. Summary of the Utility Model
[0005] In order to overcome the problems of the existing anti-withdrawal structure of contacts, where the buckle is usually installed inside the housing, blocked by other accessories such as the cover plate, making it difficult to detect, and once the buckle is installed in the wrong direction, it is often difficult to detect in a timely manner during subsequent inspection, and the already assembled related accessories can only be scrapped directly and are difficult to rework, resulting in waste of resources, the utility model provides a locking structure of a contact.
[0006] The technical solution of the utility model is as follows:[[]]END]]
[0007] A locking structure of a contact, comprising:[[]]END]]
[0008] A contact, with a buckle installation position provided in the middle of the contact, and a step provided at the rear of the contact.
[0009] An elastic plastic buckle, the elastic plastic buckle is of a conical structure, and the elastic plastic buckle is sleeved on the buckle installation position on the contact.
[0010] Installation housing, a limiting portion is provided inside the installation housing, the contact member is installed inside the installation housing, and the limiting portion is placed in a groove formed between the elastic plastic buckle and the step.
[0011] For the present utility model according to the above solution, the elastic plastic buckle is an unclosed annular structure with a notch.
[0012] For the present utility model according to the above solution, the contact member includes a front section, a middle section, and a rear section arranged in sequence, and the diameter of the contact member increases sequentially from the front section to the rear section.
[0013] For the present utility model according to the above solution, a buckle installation position is formed by downward depression in the middle of the middle section of the contact member.
[0014] For the present utility model according to the above solution, the step is formed at the connection between the middle section and the rear section.
[0015] For the present utility model according to the above solution, the side with a smaller diameter of the elastic plastic buckle faces the front section of the contact member.
[0016] For the present utility model according to the above solution, the inner diameter of the elastic plastic buckle remains unchanged, and the inner diameter of the elastic plastic buckle is smaller than the diameter of the middle section.
[0017] For the present utility model according to the above solution, an installation chamber for locking the contact member is provided inside the installation housing.
[0018] For the present utility model according to the above solution, the installation chamber extends inward to form the limiting portion.
[0019] For the present utility model according to the above solution, the elastic plastic buckle is integrally injection molded.
[0020] For the present utility model according to the above solution, its beneficial effect is that after the elastic plastic buckle of the present utility model is sleeved on the contact member, it is directly installed into the installation housing. During the installation process, the conical elastic plastic buckle is first squeezed and deformed at the limiting portion inside the installation housing and then restored after passing over the limiting portion, so that the limiting portion is placed in the groove formed between the elastic plastic buckle and the step, thereby realizing the locking of the contact member and the installation housing. This locking method not only simplifies the assembly process and improves production efficiency, but also effectively avoids installation errors through the anti-fooling function of the conical buckle, ensuring the quality and reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic diagram of the assembly structure of the present utility model;
[0022] Figure 2 is a schematic exploded view of the contact member and the elastic plastic buckle of the present utility model;
[0023] Figure 3 Schematic assembly structure diagram of the contact part and the elastic plastic buckle of the present utility model;
[0024] Figure 4 is Figure 3 cross-sectional view of.
[0025] In the figure, the respective reference numerals are as follows:
[0026] 10. Contact part; 11. Buckle installation position; 12. Front section; 13. Middle section; 14. Rear section; 20. Elastic plastic buckle; 21. Notch; 30. Installation housing; 31. Installation chamber; 32. Limiting part. Specific implementation manner
[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0028] It should be noted that the terms "including" and "having" in the description and claims of the present utility model and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products or devices. Terms such as "arranged" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. The orientations or positions indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "bottom" are based on the orientations or positions shown in the drawings, and are only for the convenience of description and should not be construed as a limitation to the technical solution of the present application.
[0029] It should be noted that the assembly process of the existing contact anti-withdrawal structure generally follows the following sequence: First, pre-install the buckle (claw) at the preset position of the housing; then, install the contact part inside the housing; finally, close the housing through the cover plate, and use the locking mechanism of the cover plate to firmly lock the buckle on the housing, meeting the basic anti-withdrawal requirements to a certain extent.
[0030] However, the buckle is usually installed inside the housing and is blocked by other accessories such as the cover plate, making it difficult to detect. Once the buckle is installed backwards, it is often difficult to detect in time during subsequent inspection processes. The assembled related accessories can only be scrapped directly after the problem is discovered and it is difficult to rework, resulting in a waste of resources.
[0031] As Figures 1 - 4 shown, in this embodiment, for the situation where the buckle cannot be reworked after the upper cover plate of the housing is installed with the buckle, a contact locking structure is provided. After the elastic plastic buckle 20 is sleeved on the contact 10, it is directly inserted into the installation housing 30. During the insertion process, the conical elastic plastic buckle 20 is first deformed by extrusion at the limiting part 32 in the installation housing 30 and then restored after passing over the limiting part 32, so that the limiting part 32 is placed in the groove formed between the elastic plastic buckle 20 and the step, thereby realizing the locking of the contact 10 and the installation housing 30. This locking method not only simplifies the assembly process and improves production efficiency, but also effectively avoids the occurrence of installation errors through the anti-fooling function of the conical buckle, ensuring the quality and reliability of the product.
[0032] Specifically, the new contact locking structure includes a contact 10, an elastic plastic buckle 20 and an installation housing 30. A buckle installation position 11 is provided in the middle of the contact 10, and a step is provided at the rear of the contact 10 to facilitate the installation of the elastic plastic buckle 20 and the cooperation with the limiting part 32 in the installation housing 30 for locking;
[0033] The elastic plastic buckle 20 is of a conical structure, and the elastic plastic buckle 20 is sleeved on the buckle installation position 11 on the contact 10. The conical elastic plastic buckle 20 restricts the contact 10 to be inserted into the installation housing 30 only along a predetermined and correct direction, thereby ensuring that the contact 10 can only be installed forward along the shape of the conical structure and reverse installation cannot be achieved. It has an anti-fooling function and can prevent the contact 10 from being installed incorrectly;
[0034] A limiting part 32 is provided in the installation housing 30. The contact 10 is installed in the installation housing 30, and the limiting part 32 is placed in the groove formed between the elastic plastic buckle 20 and the step.
[0035] The assembly process is as follows: First, the elastic plastic buckle 20 is sleeved on the buckle installation position 11 of the contact piece 10; then the contact piece 10 is inserted into the installation housing 30. Since the buckle is designed as a conical structure, in its natural state, it limits the contact piece 10 to be inserted into the installation housing 30 in a specific direction. When the contact piece 10 is pushed into the installation housing 30, the tip of the elastic plastic buckle 20 first contacts the limiting part 32 in the installation housing 30 and is temporarily compressed and deformed under extrusion. As the contact piece 10 further penetrates, after the elastic plastic buckle 20 passes over the limiting part 32, it quickly recovers. Its tail end is mutually limited with the front side of the limiting part 32, and at the same time, the step is limited with the rear side of the limiting part 32. The limiting part 32 is placed between the elastic plastic buckle 20 and the step to form a stable groove structure, thus realizing the firm locking of the contact piece 10 and the installation housing 30. Using the self-structures of the elastic plastic buckle 20, the contact piece 10, and the installation housing 30 to lock the contact piece 10 and the installation housing 30, without using a cover plate, can save materials. The elastic plastic buckle 20 with a conical structure can provide the same holding force as the existing metal claw, and the structure is reliable.
[0036] In one embodiment, the elastic plastic buckle 20 is an unclosed ring structure with a notch 21. The unclosed ring structure allows the elastic plastic buckle 20 to easily open when subjected to an outward pulling force and be quickly and accurately sleeved on the buckle installation position 11 on the contact piece 10. The setting of the unclosed ring structure also allows the elastic plastic buckle 20 to be squeezed by the limiting part 32 during the process of inserting into the installation housing 30, and the notch 21 moves towards the closed state and is quickly compressed, so as to quickly pass through the limiting part 32.
[0037] In one embodiment, the contact piece 10 includes a front section 12, a middle section 13, and a rear section 14 arranged in sequence. The diameter of the contact piece 10 increases in sequence from the front section 12 to the rear section 14. The insertion process of the contact piece 10 provides a guiding function, which helps to ensure that the contact piece 10 can smoothly and accurately enter the installation housing 30.
[0038] A buckle installation position 11 is formed by a downward depression in the middle of the middle section 13 of the contact piece 10. The inner diameter of the elastic plastic buckle 20 remains unchanged, and the inner diameter of the elastic plastic buckle 20 is smaller than the diameter of the middle section 13. The purpose of this setting is to make the elastic plastic buckle 20 restricted by the contact piece 10 and not easily come off, which can effectively prevent the elastic plastic buckle 20 from detaching from the buckle installation position 11 on the middle section 13.
[0039] A step is formed at the connection between the middle section 13 and the rear section 14. After the elastic plastic buckle 20 is sleeved on the contact piece 10, it protrudes from the middle section 13, so as to form a groove between the elastic plastic buckle 20 and the step to cooperate with the limiting part 32 of the installation housing 30 for mutual limitation. The side with a smaller diameter of the elastic plastic buckle 20 faces the front section 12 of the contact piece 10, so as to ensure the correct installation of the contact piece 10.
[0040] In one embodiment, a mounting chamber 31 for locking the contact 10 is provided in the mounting housing 30. The shape of the mounting chamber 31 matches the shapes of the front section 12, the middle section 13 and the rear section 14 of the contact 10, thereby providing precise guidance when the contact 10 is inserted and reducing assembly errors.
[0041] The installation chamber 31 extends inward to form a limiting portion 32, which ensures that the contact 10 is correctly installed in place. The limiting portion 32 limits the movement range of the contact 10 in the installation chamber 31, and also helps the elastic plastic buckle 20 to achieve locking when the contact 10 is fully inserted through its physical blocking effect.
[0042] In one embodiment, the elastic plastic buckle 20 is integrally injection molded. The elastic plastic buckle 20 is produced by injection molding, which is convenient for mass production and saves production time.
[0043] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.
[0044] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A contact locking structure, characterized in that, Comprising: A contact member, a snap mounting position is provided in the middle of the contact member, and a step is provided at the rear of the contact member; An elastic plastic snap, the elastic plastic snap is a conical structure, and the elastic plastic snap is sleeved on the snap mounting position on the contact member; A mounting housing, a limiting portion is provided in the mounting housing, the contact member is mounted in the mounting housing, and the limiting portion is placed in a groove formed between the elastic plastic snap and the step.
2. The contact locking structure according to claim 1, characterized in that, The elastic plastic snap is an unclosed annular structure with a notch.
3. The contact locking structure according to claim 1 or 2, characterized in that The contact member includes a front section, a middle section and a rear section arranged in sequence, and the diameter of the contact member increases in sequence from the front section to the rear section.
4. The contact locking structure according to claim 3, characterized in that The middle part of the middle section of the contact member is recessed downward to form the snap mounting position.
5. The contact locking structure according to claim 4, characterized in that, The step is formed at the connection between the middle section and the rear section.
6. A contact locking structure according to claim 4 or 5, characterized in that The side with a smaller diameter of the elastic plastic snap faces the front section of the contact member.
7. The contact locking structure according to claim 6, characterized in that, The inner diameter of the elastic plastic snap remains unchanged, and the inner diameter of the elastic plastic snap is smaller than the diameter of the middle section.
8. The contact locking structure according to claim 1, characterized in that, A mounting chamber for locking the contact member is provided in the mounting housing.
9. The contact locking structure according to claim 8, characterized in that, The mounting chamber extends inward to form the limiting portion.
10. The contact locking structure according to claim 1, characterized in that, The elastic plastic snap is integrally injection molded.