Terminal buckle fixing structure

Abstract

The application relates to the technical field of mechanical fixing, in particular to a terminal buckle fixing structure which comprises a guide groove arranged on a terminal shell, a locking buckle is slidably connected in the guide groove, the locking buckle is provided with a pressing portion at the tail end, a first end is provided with an elastic abutting portion, the middle part is hollow and extends out an elastic stop sheet with a stop tooth, the terminal shell is provided with a ratchet strip matched with the terminal shell and limiting the position of the locking buckle, the elastic abutting portion is matched with a positioning shoulder to fix the terminal shell in a mounting hole, and the elastic abutting portion is in the form of an outer '8' type and is subjected to various optimization designs. The application can conveniently and stably fix the terminal shell in the mounting hole, and the technical effect of improving the fixing effect and operation convenience is achieved through reasonable structural design.

Description

Technical Field

[0001] This application relates to the field of mechanical fastening technology, and in particular to a terminal snap-fit ​​fastening structure. Background Technology

[0002] In the field of mechanical fixing devices, the installation and fixation of electronic terminals is crucial. With continuous technological advancements, electronic terminals are rapidly developing towards miniaturization and modularization. Quick installation and disassembly not only improve work efficiency and reduce labor costs, but also reduce the risk of terminal damage due to prolonged operation, further promoting the widespread application of electronic terminals in various fields.

[0003] In existing technologies, screws and bolts are commonly used for installing electronic terminals. While these fasteners provide a secure hold, installation and removal require tools, making the process cumbersome and time-consuming. To address this, snap-fit ​​fastening structures have emerged. These rely on elastic deformation, allowing for easy installation by pressing and removal by manual operation, eliminating the need for tools and offering greater convenience. However, existing snap-fit ​​structures also have significant drawbacks. They lack reliability and ease of operation, and frequent installation and removal can easily lead to loosening or damage, making it difficult to ensure the long-term stable use of electronic terminals. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this application provides a terminal buckle fixing structure, which achieves stable fixing of the terminal housing in the mounting hole by sliding cooperation between the guide groove and the locking buckle, limiting the stop tooth and the ratchet rack, and engaging the elastic abutment part and the positioning shoulder with the mounting hole. The locking buckle position can be adjusted by pressing the part, which facilitates installation and positioning.

[0005] This application is achieved through the following technical solution:

[0006] A terminal latching structure includes a guide groove on a terminal housing, a locking buckle slidably connected in the guide groove, a pressing part at one end of the locking buckle, and an elastic abutment part at one end; a hollow space is formed in the middle of the locking buckle, and an elastic stop piece extends from the locking buckle in the hollow space; the elastic stop piece is provided with stop teeth, and a ratchet rack adapted to the stop teeth is provided on the terminal housing, the ratchet rack being used to limit the position of the locking buckle on the terminal housing; the elastic abutment part cooperates with a positioning shoulder provided on the terminal housing, enabling an externally set mounting hole to be engaged between the elastic abutment part and the positioning shoulder, thereby fixing the terminal housing in the mounting hole.

[0007] By adopting the above technical solution, this terminal latching structure utilizes a guide groove to allow the locking buckle to slide onto the terminal housing, facilitating position adjustment. The pressing part at the end of the locking buckle is easy to operate, while the elastic abutment part at the head engages with the positioning shoulder to firmly fix the terminal housing in the mounting hole. The locking buckle has a hollowed-out center with an extended elastic stop plate; the stop teeth on the plate match the ratchet rack, effectively limiting the locking buckle's position on the terminal housing and preventing loosening. This design not only improves the stability and reliability of terminal housing installation but also offers simple and convenient operation, requiring no complex tools or processes, reducing installation difficulty and cost, and making it suitable for various occasions requiring terminal latching.

[0008] Optionally, the elastic abutment portion has an outward "V" shape structure and is symmetrically arranged at the head of the locking buckle.

[0009] By adopting the above technical solution, the elastic abutment part with the external "V"-shaped structure and symmetrical arrangement at the head of the locking buckle can better adapt to different specifications of mounting holes, enhance the locking force on the mounting holes, and make the terminal housing and mounting holes more secure.

[0010] Optionally, the elastic abutment part is provided with an auxiliary abutment part; the auxiliary abutment part has an inward "V" shape structure and is symmetrically arranged at the head end of the locking buckle.

[0011] By adopting the above technical solution, an auxiliary abutment part with an inward "V" shape structure and symmetrically arranged at the head of the locking buckle is provided on the elastic abutment part, which can further enhance the snap-fit ​​stability of the mounting hole and make the terminal housing more firmly and reliably fixed in the mounting hole.

[0012] Optionally, the locking buckle has a neck at the middle of its head end, and the width of the neck is not greater than half the width of the locking buckle; the elastic abutment is symmetrically arranged on the neck.

[0013] By adopting the above technical solution, the necking can give the elastic abutment part better elastic deformation ability, enhance the flexibility and adaptability of the elastic abutment part when it is snapped into the mounting hole, and at the same time, reasonable control of the necking width can ensure the overall strength of the locking buckle and improve the reliability of the fixing structure.

[0014] Optionally, the back of the elastic abutment portion is provided with reinforcing ribs.

[0015] By adopting the above technical solution, the structural strength of the elastic abutment part can be enhanced, preventing deformation and damage to the elastic abutment part during use, and improving the durability and reliability of the terminal buckle fixing structure.

[0016] Optionally, the pressing part is an arc-shaped pressing plate disposed at the end of the locking buckle, and the arc-shaped pressing plate and the locking buckle are integrally formed.

[0017] By adopting the above technical solution, the pressing part is set as an arc-shaped pressing plate and integrally formed with the locking buckle, making the pressing operation more ergonomic for the fingers and improving the comfort of operation. At the same time, the integrally formed structure enhances the stability of the connection between the pressing part and the locking buckle.

[0018] Optionally, the bottom of the locking buckle is provided with a guide bar that matches the guide groove, and the guide bar is symmetrically arranged on both sides of the elastic stop plate.

[0019] By adopting the above technical solution, guide strips adapted to the guide groove and symmetrically arranged on both sides of the elastic stop plate are set at the bottom of the locking buckle, enabling the locking buckle to slide stably within the guide groove. The guide strips can limit the position of the locking buckle during sliding, preventing it from shaking or shifting, and ensuring smooth movement of the locking buckle. At the same time, this symmetrical arrangement helps to distribute stress, reduce wear and damage caused by uneven force, extend the service life of the locking buckle and the guide groove, and improve the reliability and stability of the entire terminal buckle fixing structure.

[0020] Optionally, the front end of the elastic abutment portion is provided with an abutment post, which is used to abut against the edge of the terminal housing.

[0021] By adopting the above technical solution, an abutment post is provided at the front end of the elastic abutment part, which can abut against the edge of the terminal housing. This increases the contact area and support points between the elastic abutment part and the terminal housing, improving the stability and connection strength between them. It also prevents the elastic abutment part from shaking or shifting during use, allowing it to better cooperate with the positioning shoulder and securely engage with the externally designed mounting holes, ensuring the terminal housing is firmly fixed in the mounting holes.

[0022] Optionally, the guide groove extends from one end near the pressing part to the corner of the terminal housing, and the guide groove has a dovetail-shaped structure.

[0023] By adopting the above technical solution, the end of the guide groove near the pressing part is extended to the corner of the terminal housing and designed as a dovetail structure, which can better utilize the corner space of the terminal housing, making the locking buckle slide more smoothly and easier to install and operate.

[0024] Optionally, the elastic stop plate is provided with a bending unlocking part.

[0025] By adopting the above technical solution, a bent unlocking part is provided on the elastic stop plate. When it is necessary to unlock, the elastic stop plate can be deformed by operating this bent unlocking part. This allows the stop tooth to disengage from the ratchet rack, thereby eliminating the ratchet rack's restriction on the locking buckle's position and enabling the locking buckle to slide freely within the guide groove. This design facilitates the unlocking operation of the terminal latch fixing structure, improves unlocking efficiency, and enhances the convenience and flexibility of the structure's use.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. This application achieves stable fixation of the terminal housing by sliding cooperation between the guide groove and the locking buckle, using the stop tooth and ratchet rack for limiting, combined with the elastic abutment part and the positioning shoulder snap-fit ​​mounting hole, and facilitates installation and adjustment.

[0028] 2. This application features an arc-shaped pressing part that is integrally formed with the locking buckle, facilitating pressing operations to adjust the position of the locking buckle, improving ease of operation, and enhancing the overall structure and durability.

[0029] 3. This application uses a guide bar and guide groove to precisely guide the sliding of the locking buckle, prevent deviation, ensure its stable movement and positioning, and improve the structural fit accuracy. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the terminal housing and mounting hole installation as described in Embodiment 1;

[0031] Figure 2 This is a schematic diagram of the guide groove described in Embodiment 1;

[0032] Figure 3 This is a schematic diagram of the ratchet rack described in Embodiment 1;

[0033] Figure 4 This is a schematic diagram of the locking buckle described in Embodiment 1;

[0034] Figure 5 This is a schematic diagram of the structure of the elastic stop plate described in Embodiment 1;

[0035] Figure 6 This is a schematic diagram of the guide strip described in Embodiment 1;

[0036] Figure 7 This is a schematic diagram of the reinforcing rib described in Example 2.

[0037] In the diagram: 1. Terminal housing; 11. Guide groove; 111. Dovetail structure; 12. Ratchet; 13. Positioning shoulder; 2. Locking buckle; 21. Pressing part; 211. Arc-shaped pressing plate; 22. Elastic abutment part; 221. Auxiliary abutment part; 222. Reinforcing rib; 223. Abutment post; 23. Hollow space; 24. Elastic stop plate; 241. Stop tooth; 242. Bending unlocking part; 25. Neck; 26. Guide strip; 3. Mounting hole. Detailed Implementation

[0038] The technical solutions of various embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] Example 1

[0040] Reference Figures 1-3 This application discloses a terminal buckle fixing structure, including a guide groove 11 provided on a terminal housing 1, a locking buckle 2 slidably connected in the guide groove 11, a pressing part 21 at the end of the locking buckle 2, and an elastic abutment part 22 at the beginning; a hollow space 23 is formed in the middle of the locking buckle 2, and an elastic stop piece 24 extends from the locking buckle 2 in the hollow space 23; a stop tooth 241 is provided on the elastic stop piece 24, and a ratchet 12 adapted to the stop tooth 241 is provided on the terminal housing 1, the ratchet 12 is used to limit the position of the locking buckle 2 on the terminal housing 1; the elastic abutment part 22 cooperates with a positioning shoulder 13 provided on the terminal housing 1, and can engage an externally set mounting hole 3 between the elastic abutment part 22 and the positioning shoulder 13 to fix the terminal housing 1 in the mounting hole 3.

[0041] Specifically, refer to Figure 3 The guide groove 11 extends from one end near the pressing part 21 to the corner of the terminal housing 1, and the guide groove 11 has a dovetail-shaped structure 111. The dovetail-shaped structure 111 of the guide groove 11 has a good limiting effect, which can prevent the locking buckle 2 from coming out of the guide groove 11. The design of extending to the corner of the terminal housing 1 increases the length of the guide groove 11, providing a larger stroke for the sliding of the locking buckle 2, which facilitates installation and disassembly operations. For example, when installing the terminal housing 1, the locking buckle 2 can slide to a suitable position in the longer guide groove 11, thereby achieving better snap-fit ​​fixation.

[0042] Reference Figure 4 The elastic abutment part 22 has an outward "V" shape structure and is symmetrically arranged at the head end of the locking buckle 2. The outward "V" shape structure allows the elastic abutment part 22 to better adapt to the shape of the mounting hole 3 when it comes into contact with the external mounting hole 3, and to generate a larger abutment force. This symmetrical arrangement ensures uniform force distribution when engaging the mounting hole 3, improving the stability of the fixation. For example, when the terminal housing 1 is installed into the mounting hole 3, the outward "V" shaped elastic abutment part 22 will first contact the edge of the mounting hole 3 and undergo elastic deformation, thereby tightly abutting against the mounting hole 3.

[0043] Reference Figures 4-5The elastic abutment portion 22 is provided with an auxiliary abutment portion 221. The auxiliary abutment portion 221 has an inward "V" shape and is symmetrically arranged at the head end of the locking buckle 2. The auxiliary abutment portion 221 cooperates with the elastic abutment portion 22 to further increase the contact area and abutment force with the mounting hole 3. The inward "V" shape structure allows the auxiliary abutment portion 221 to provide additional support force when in contact with the mounting hole 3, especially on the inner side of the elastic abutment portion 22, enhancing the overall fixing effect. For example, when the elastic abutment portion 22 abuts against the outer edge of the mounting hole 3, the auxiliary abutment portion 221 can abut against the inner edge of the mounting hole 3, forming a double abutment effect. The material and manufacturing process of the auxiliary abutment portion 221 are similar to those of the elastic abutment portion 22. It can be integrally molded from the same material or connected by bonding different materials.

[0044] Reference Figure 5 The locking buckle 2 has a constricted neck 25 at its central end, the width of which is no more than half the width of the locking buckle 2. Elastic abutment portions 22 are symmetrically arranged on the constricted neck 25. The design of the constricted neck 25 makes it easier for the elastic abutment portions 22 to undergo elastic deformation under stress, improving their elastic performance. Simultaneously, the constricted neck 25 can reduce the weight of the locking buckle 2, lowering material costs. For example, when the elastic abutment portion 22 is compressed by the mounting hole 3, the constricted neck 25 provides space for deformation, allowing it to better adapt to the size and shape of the mounting hole 3. The specific width of the constricted neck 25 can be adjusted according to the overall size of the locking buckle 2 and the design requirements of the elastic abutment portion 22, but generally does not exceed half the width of the locking buckle 2 to ensure the overall strength of the locking buckle 2.

[0045] Reference Figures 5-6 The pressing part 21 is an arc-shaped pressing plate 211 located at the end of the locking buckle 2, and the arc-shaped pressing plate 211 and the locking buckle 2 are integrally formed. This integrally formed structure makes the connection between the pressing part 21 and the locking buckle 2 more secure and can better transmit force. The shape of the arc-shaped pressing plate 211 is convenient for users to press with their fingers, increasing the comfort and convenience of operation. For example, when the terminal housing 1 needs to be fixed to the external mounting hole 3, the user only needs to press the arc-shaped pressing plate 211 lightly with their fingers to drive the locking buckle 2 to slide in the guide groove 11.

[0046] Reference Figure 6The bottom of the locking buckle 2 is provided with guide strips 26 that are adapted to the guide groove 11. The guide strips 26 are symmetrically arranged on both sides of the elastic stop piece 24. The function of the guide strips 26 is to guide the locking buckle 2 to slide accurately in the guide groove 11 and prevent it from deviating or wobbling; the symmetrical arrangement of the guide strips 26 ensures the stability and straightness of the locking buckle 2 during the sliding process. For example, when the locking buckle 2 slides, the guide strips 26 can fit tightly against the inner wall of the guide groove 11, providing a stable guiding effect for the locking buckle 2. The material of the guide strips 26 is generally selected to be the same as that of the locking buckle 2 or a material with a low coefficient of friction to reduce friction during sliding.

[0047] Reference Figures 4-5 The elastic stop plate 24 is provided with a bending unlocking part 242. When it is necessary to unlock, the elastic stop plate 24 can be deformed by manually operating the bending unlocking part 242. This can disengage the stop tooth 241 from the ratchet 12, thereby eliminating the restriction of the ratchet 12 on the position of the locking buckle 2 and realizing the free sliding of the locking buckle 2 in the guide groove 11.

[0048] Reference Figures 4-6 The elastic abutment part 22 has an abutment post 223 at its front end, which abuts against the edge of the terminal housing 1. The abutment post 223 increases the contact points between the elastic abutment part 22 and the edge of the terminal housing 1, further improving the stability of the fixation. For example, when the elastic abutment part 22 is engaged with the mounting hole 3, the abutment post 223 can abut against the edge of the terminal housing 1 to prevent the elastic abutment part 22 from shifting or shaking during use. The shape of the abutment post 223 is generally cylindrical or square, and its height and diameter can be designed according to actual conditions, but it must ensure effective contact with the edge of the terminal housing 1.

[0049] The implementation principle of this embodiment is as follows: This terminal buckle fixing structure, through its ingenious design, utilizes the synergistic effect of the guide groove 11, locking buckle 2, elastic abutment part 22, elastic stop piece 24, and ratchet rack 12 to solve the problems of inconvenient operation and insufficient stability of traditional fixing methods. Compared with traditional bolt and nut connections, no additional tools are required, making operation more convenient; compared with glue bonding, it is not affected by environmental factors and has higher fixing strength; compared with clamp or clip fixing, it is not easy to loosen when subjected to external force or vibration; compared with welding methods, it is reversible, facilitating later maintenance and replacement. Its innovation lies in the organic combination of multiple mechanical structures to form a terminal fixing method that is both convenient and stable, improving the installation and use efficiency of terminal equipment and enhancing the reliability and durability of the equipment.

[0050] Example 2

[0051] Reference Figure 7The difference between this embodiment and Embodiment 1 is that a reinforcing rib 222 is provided on the back side of the elastic abutment portion 22. The function of the reinforcing rib 222 is to enhance the strength of the elastic abutment portion 22 and prevent it from being damaged due to frequent elastic deformation during long-term use. The reinforcing rib 222 is generally a strip structure, distributed longitudinally along the back side of the elastic abutment portion 22. For example, when the elastic abutment portion 22 is subjected to a large external force, the reinforcing rib 222 can disperse the stress and prevent the elastic abutment portion 22 from cracking or excessively deforming. The shape of the reinforcing rib 222 can also be adjusted according to actual needs, such as using a grid-like or wavy shape, or other shapes, but it must ensure that it can enhance the strength of the elastic abutment portion 22.

[0052] The implementation principle of this embodiment is as follows: by providing reinforcing ribs 222 on the back of the elastic abutment part 22, the strength of the elastic abutment part 22 is enhanced, and its resistance to deformation is improved, so that the elastic abutment part 22 can maintain good performance under long-term use and frequent stress, thereby improving the reliability and durability of the entire terminal buckle fixing structure and further solving the problem of insufficient stability of traditional fixing methods.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this application.

Claims

1. A terminal buckle fixing structure, characterized in that: The device includes a guide groove (11) on the terminal housing (1), in which a locking buckle (2) is slidably connected. The locking buckle (2) has a pressing part (21) at its end and an elastic abutment part (22) at its head. A hollow space (23) is formed in the middle of the locking buckle (2), and an elastic stop piece (24) extends from the locking buckle (2) in the hollow space (23). The elastic stop piece (24) has a stop tooth (241), and the terminal housing (1) has a ratchet (12) that matches the stop tooth (241). The ratchet (12) is used to limit the position of the locking buckle (2) on the terminal housing (1). The elastic abutment part (22) cooperates with a positioning shoulder (13) on the terminal housing (1) to engage an externally set mounting hole (3) between the elastic abutment part (22) and the positioning shoulder (13) to fix the terminal housing (1) in the mounting hole (3).

2. The terminal buckle fixing structure according to claim 1, characterized in that: The elastic abutment part (22) has an outward "V" shape structure and is symmetrically arranged at the head of the locking buckle (2).

3. The terminal buckle fixing structure according to claim 2, characterized in that: The elastic abutment part (22) is provided with an auxiliary abutment part (221); the auxiliary abutment part (221) has an inner "V" shaped structure and is symmetrically arranged at the head end of the locking buckle (2).

4. The terminal buckle fixing structure according to claim 2, characterized in that: The locking buckle (2) has a neck (25) at the middle of its head end. The width of the neck (25) is not greater than half the width of the locking buckle (2). The elastic abutment (22) is symmetrically arranged on the neck (25).

5. The terminal buckle fixing structure according to claim 2, characterized in that: The back of the elastic contact part (22) is provided with reinforcing ribs (222).

6. The terminal buckle fixing structure according to claim 1, characterized in that: The pressing part (21) is an arc-shaped pressing plate (211) provided at the end of the locking buckle (2), and the arc-shaped pressing plate (211) and the locking buckle (2) are integrally formed.

7. The terminal buckle fixing structure according to claim 1, characterized in that: The bottom of the locking buckle (2) is provided with a guide strip (26) that is compatible with the guide groove (11), and the guide strip (26) is symmetrically arranged on both sides of the elastic stop plate (24).

8. The terminal buckle fixing structure according to claim 1, characterized in that: The elastic contact part (22) has a contact post (223) at its front end, and the contact post (223) is used to contact the edge of the terminal housing (1).

9. A terminal buckle fixing structure according to claim 1, characterized in that: The guide groove (11) extends from one end near the pressing part (21) to the corner of the terminal housing (1), and the guide groove (11) has a dovetail structure (111).

10. A terminal buckle fixing structure according to claim 1, characterized in that: The elastic stop plate (24) is provided with a bending unlocking part (242).

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