Locking structure of connector
By designing locking parts and multi-point locking structures in the connector, the problem of poor strength and stability of the single snap structure of the traditional connector is solved, and higher connection strength and stability are achieved.
Patent Information
- Application Number
- CN202422176245.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The single snap-on connection structure of traditional connectors is not strong enough and has poor stability, which affects the user experience.
Using male and female heads that can be fitted with each other, three locking of male heads and female heads are achieved by setting up locking members and multi-point locking structures, including locking chambers, locking grooves, hooks and barbs of movable plates.
It improves the connection strength and stability of the connector, enhances the reliability and sealing of the connection, and prevents the snap structure from aging and breaking.
Smart Images
Figure CN223181499U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of connectors, and particularly relates to a locking structure of a connector. Background Art
[0002] A connector is a device used to connect two active devices, capable of transmitting current or signals. It can also be called a connector, plug, or socket, and is an essential component in electronic engineering, mainly playing the role of a communication bridge to enable the transmission of current.
[0003] Traditional connectors generally include a male head and a female head, and the two are connected and fixed by a set of elastic buckles. However, over time, the buckle structure is prone to aging and fracture, resulting in the inability to connect and fix the two. At the same time, the single-buckle connection structure also has problems of poor connection strength and stability, seriously affecting the user experience of consumers. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] The utility model provides a locking structure of a connector, aiming to solve the problems of insufficient strength and poor stability of the single-buckle connection structure of existing connectors.
[0006] (2) Technical Solutions
[0007] The utility model provides a locking structure of a connector, including a male head and a female head that can be mutually engaged, and a locking member arranged between the male head and the female head. The male head is provided with a first locking device, the female head is provided with a second locking device and a third locking device, a connection cavity is arranged between the second locking device and the third locking device, and the first locking device is slidably engaged in the connection cavity; wherein, a fourth locking device is further arranged at the top of the third locking device, a locking cavity communicated with the connection cavity is arranged in the fourth locking device, a locking plate is arranged in the locking cavity, a locking hook is arranged on the first locking device, and the locking hook is clamped with the locking plate to fix the male head and the female head in an engaged state.
[0008] Further, a locking groove is arranged in the locking plate, the locking hook is clamped in the locking groove and abuts against the first front inner wall of the locking groove.
[0009] Further, in the locking cavity, and above the locking plate, a fixing plate is fixedly arranged. A through hole is arranged between the fixing plate and the locking plate, and the locking member is slidably connected in the through hole; wherein, a sliding groove is arranged in the fixing plate, a sliding block corresponding to the sliding groove is fixedly arranged at the top of the locking member, the sliding block is slidably connected in the sliding groove, and a hook is further arranged at one end of the locking member.
[0010] Further, a first inclined surface is provided at the front end of the engaging hook, and a second inclined surface corresponding to the first inclined surface is provided at the rear end of the locking hook.
[0011] Further, a third inclined surface is provided at the rear end of the engaging hook, and the third inclined surface and the first inclined surface form a "V"-shaped structure. A fourth inclined surface corresponding to the third inclined surface is provided at the front end of the locking plate.
[0012] Further, a limiting step is provided between the fixing plate and the locking plate, and a limiting arm corresponding to the limiting step is provided on the side wall of the locking member; in the unlocked state, the limiting arm abuts against the limiting step to prevent the locking member from retreating.
[0013] Further, a pushing plate is fixedly provided at the top of the slider, and the pushing plate and the locking member are respectively connected in a sandwiching manner with the fixing plate up and down.
[0014] Further, one end of the pushing plate is provided with a pushing portion extending away from the second locking device and having a stepped shape.
[0015] Further, an activity port communicating with the locking cavity is provided inside the fourth locking device. An activity plate is provided in the activity port. An inverted hook corresponding to the locking hook is provided at the bottom of the front end of the activity plate, and the inverted hook is located inside the locking cavity and in front of the locking plate.
[0016] Further, a guiding strip is provided on the outer peripheral wall of the first locking device, and a guiding groove corresponding to the guiding strip is provided on the inner peripheral wall of the third locking device.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] Through the fitting design of the connection cavity and the first locking device, the connection accuracy and stability of the male head and the female head are effectively improved. At the same time, a locking cavity is communicated above the connection cavity, and a locking groove, an engaging hook in the locking member and an inverted hook in the activity plate are provided in the locking cavity, so as to realize three times of locking of the locking hook on the first locking device, thereby effectively improving the connection strength and reliability of the male head and the female head. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model.
[0020] Figure 2 is an overall exploded view of the present utility model.
[0021] Figure 3 is a partial exploded view of the present utility model.
[0022] Figure 4 is a cross-section of the present utility modelFigure 1 。
[0023] Figure 5 This is a schematic structural view of the locking member of the present utility model.
[0024] Figure 6 This is the locking process of the locking member of the present utility model Figure 1 。
[0025] Figure 7 This is the locking process of the locking member of the present utility model Figure 2 。
[0026] Figure 8 This is the locking process of the locking member of the present utility model Figure 3 。
[0027] Figure 9 This is a schematic structural view of the limiting arm of the present utility model.
[0028] Figure 10 This is a schematic structural view of the movable plate of the present utility model.
[0029] Reference numerals: 1 - male head, 11 - first locking device, 12 - locking hook, 121 - second inclined surface, 13 - guiding strip, 2 - female head, 21 - second locking device, 22 - third locking device, 221 - guiding groove, 23 - connecting cavity, 24 - fourth locking device, 241 - movable opening, 242 - movable plate, 2421 - third front end, 2422 - third rear end, 243 - barb, 25 - locking cavity, 26 - locking plate, 261 - locking groove, 262 - first front inner wall, 263 - first front end, 2631 - fourth inclined surface, 264 - first rear end, 27 - fixing plate, 271 - through hole, 272 - sliding groove, 2721 - second front inner wall, 28 - limiting step, 3 - locking member, 31 - slider, 32 - second front end, 321 - hook, 3211 - first inclined surface, 3212 - third inclined surface, 33 - limiting arm, 34 - pushing plate, 341 - pushing portion. Detailed implementation manners
[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.
[0031] In order to more clearly express the purpose of the present invention and the technical solutions of the embodiments, as Figure 2 shown, the direction indicated by the axis L1 is the front - rear direction.
[0032] As Figures 1-10As shown in the figure, the present utility model provides a locking structure for a connector, which includes a male head 1 and a female head 2 that can be mutually engaged, and a locking member 3 disposed between the male head 1 and the female head 2. When the male head 1 and the female head 2 are engaged, the locking member 3 is used to lock the male head 1 and the female head 2, thereby improving the connection stability and safety reliability of the connector;
[0033] Specifically, as Figures 1-4 shown, a first locking device 11 extending rearward is provided on the male head 1, and a second locking device 21 and a third locking device 22 extending forward are provided on the female head 2. The first locking device 11, the second locking device 21, and the third locking device 22 are all cylindrical structures. Among them, the diameter of the second locking device 21 is smaller than the diameter of the third locking device 22, and the two are coaxially corresponding. The front-back length L2 of the third locking device 22 is smaller than the front-back length L3 of the second locking device 21, and the rear end of the third locking device 22 is connected to the peripheral wall of the second locking device 21, so that a connection cavity 23 with an opening facing forward is formed between the second locking device 21 and the third locking device 22. The first locking device 11 is slidably engaged in the connection cavity 23. Through the embedded design of the first locking device 11 and the connection cavity 23, the sealing performance, waterproof performance, and seismic resistance of the connector are effectively improved;
[0034] Specifically, a fourth locking device 24 with front and rear openings and in a cylindrical structure is further provided on the top of the third locking device 22. A locking cavity 25 is provided in the fourth locking device 24, and the locking cavity 25 communicates with the connection cavity 23;
[0035] Furthermore, a locking plate 26 is provided in the locking cavity 25, a locking groove 261 is provided in the locking plate 26, and a locking hook 12 corresponding to the locking groove 261 is provided on the outer peripheral wall of the first locking device 11. When the male head 1 and the female head 2 are fully engaged, the locking hook 12 on the male head 1 is snapped into the locking groove 261, and the front end face of the locking hook 12 abuts against the first front inner wall 262 of the locking groove 261, thereby restricting the male head 1 from being pulled out of the connection cavity 23 and locking the male head 1 and the female head 2;
[0036] Among them, in the direction of the axis L1, the two sides of the middle part of the locking plate 26 are fixedly connected to the locking device 2 21, so that the first front end 263 and the first rear end 264 of the locking plate 26 are hollowed out from the locking device 2 21. When the first rear end 264 of the locking plate 26 is pressed toward the locking device 2 21, under the action of the lever in the middle part of the locking plate 26, the first front end 263 of the locking plate 26 is tilted away from the locking device 2 21, thereby disengaging the locking plate 26 and the locking hook 12 from each other, and achieving the purpose of unlocking the male head 1 and the female head 2.
[0037] Specifically, a fixing plate 27 is fixedly provided in the locking cavity 25 and above the locking plate 26. A through hole 271 with front and rear openings is provided between the fixing plate 27 and the locking plate 26. The locking member 3 is slidably connected to the through hole 271. A sliding groove 272 arranged in the front and rear directions is provided in the fixing plate 27. The locking member 3 is long and has a slider 31 fixed on the top thereof corresponding to the sliding groove 272. During installation, the slider 31 is slidably connected to the sliding groove 272, so that the locking member 3 can slide back and forth along the sliding groove 272.
[0038] In actual use, when the locking hook 12 is engaged only by the locking groove 261, if the male connector 1 is pulled forward with too much force, the locking hook 12 may be easily disengaged from the locking groove 261, or even the first front end 263 of the locking plate 26 may be broken, thereby affecting the user experience.
[0039] To solve this problem, Figures 6-8 As shown, the second front end 32 of the locking member 3 is provided with a hook 321 extending toward the second locking device 21. In the unlocked state, the hook 321 is slidably connected to the locking groove 261. At the same time, the front end of the hook 321 is provided with a first inclined surface 3211, and the rear end of the locking hook 12 is provided with a second inclined surface 121 corresponding to the first inclined surface 3211.
[0040] During use, in the state where the male head 1 and the female head 2 are fully engaged, the locking hook 12 of the male head 1 is snapped into the locking groove 261. Then, the locking member 3 is moved in the direction of the male head 1 and inserted. Under the guiding action of the first inclined surface 3211 and the second inclined surface 121, the locking member 3 drives the hook 321 to bend upward deforming, so that the hook 321 disengages from the locking groove 261 and is slidably connected to the tops of the locking hook 12 and the locking plate 26. The hook 321 continues to move until the bottom of the hook 321 no longer abuts against the tops of the locking hook 12 and the locking plate 26. Under the action of the deformation elastic force of the locking member 3, the hook 321 is reset downward and is snapped into the first front end 263 of the locking plate 26. At the same time, in this snapped state, the slider 31 of the locking member 3 just or nearly abuts against the second front inner wall 2721 in the sliding groove 272, thereby restricting the forward and backward movement of the locking member 3, further strengthening the snapping action of the locking plate 26 on the locking hook 12, and further enhancing the locking force between the male head 1 and the female head 2;
[0041] It should be noted that since the hook 321 is slidably arranged in the locking groove 261 in the unlocked state, when the locking member 3 moves forward in front of the female head 2, the front end of the hook 321 will abut against the first front inner wall 262 in the locking groove 261, thereby restricting the forward movement of the locking member 3 in the unlocked state and playing an effective protective role for the hook 321;
[0042] Furthermore, a third inclined surface 3212 is provided at the rear end of the hook 321. The third inclined surface 3212 and the first inclined surface 3211 form a "V"-shaped structure. A fourth inclined surface 2631 corresponding to the third inclined surface 3212 is provided at the first front end 263 of the locking plate 26. Through the design of the third inclined surface 3212 and the fourth inclined surface 2631, when the hook 321 slides down to the first front end 263 of the locking plate 26, it has a guiding effect, and on the premise of ensuring a good fixing effect, it can also improve the convenience of the backward movement and unlocking of the locking member 3.
[0043] Specifically, such as Figure 9As shown, in order to prevent the locking member 3 from moving backward in the through hole 271 and falling off, a limiting step 28 is provided between the fixed plate 27 and the locking plate 26. A limiting arm 33 corresponding to the limiting step 28 is provided on the side wall of the locking member 3 perpendicular to the axis L1, and the limiting step 28 is arranged behind the limiting arm 33. In the unlocked state of the locking member 3, when the locking member 3 moves a certain distance toward the rear end of the female head 2, the rear end wall of the limiting arm 33 will abut against the limiting step 28, thereby playing a role in preventing the locking member 3 from retreating and preventing the locking member 3 from falling off the fixed plate 27;
[0044] Preferably, in order to maintain balance, two limiting arms 33 are provided and symmetrically arranged on the two side walls of the locking member 3 perpendicular to the axis L1; two limiting steps 28 are also provided and correspond to the positions of the limiting arms 33;
[0045] Furthermore, as shown in Figure 5 Figure 6 or 7, in order to prevent the locking member 3 and the slider 31 from falling off toward the upper locking device two 21, a pushing plate 34 with a cross-sectional area larger than that of the sliding groove 272 is fixedly provided on the top of the slider 31; during installation, the bottom of the pushing plate 34 abuts against the top of the fixed plate 27. Under the clamping of the pushing plate 34 and the locking member 3 on the fixed plate 27 up and down, the up and down limit of the locking member 3 is realized, and the locking member 3 is effectively prevented from falling off toward the upper locking device two 21;
[0046] Preferably, a pushing portion 341 extending away from the upper locking device two 21 and in a stepped shape is further provided at the rear end of the pushing plate 34. Through the design of the pushing portion 341, a contact portion is provided for the consumer to push the locking member 3 to lock or unlock, making it more convenient for the consumer to push the locking member 3.
[0047] Specifically, as shown in Figure 1 Figure 9 or 10, in order to further improve the connection stability between the male head 1 and the female head 2, a movable port 241 communicating with the locking cavity 25 is provided on the upper locking device four 24. A movable plate 242 is provided in the movable port 241. Among them, an inverted hook 243 corresponding to the locking hook 12 and extending toward the locking cavity 25 is provided at the bottom of the front end of the movable plate 242. The inverted hook 243 is located in the locking cavity 25 and in front of the locking plate 26. During the fitting process of the male head 1 and the female head 2, the locking hook 12 of the male head 1 enters the locking cavity 25, first engages with the inverted hook 243, and then engages with the locking plate 26 when moving further backward, thereby realizing a double-locking and fixing structure between the male head 1 and the female head 2, and effectively increasing the connection stability between the male head 1 and the female head 2;
[0048] Furthermore, the movable plate 242 is fixedly connected to the locking device four 24 on both sides of the middle part along the axis L1 direction. When the third rear end 2422 of the movable plate 242 is pressed toward the locking device two 21, the third front end 2421 of the movable plate 242 drives the hook 243 to tilt up under the action of the lever in the middle of the movable plate 242, thereby realizing the disengagement and unlocking of the hook 243 from the locking hook 12.
[0049] Specifically, such as Figure 2 As shown, a guide strip 13 extending in the front-to-back direction is provided on the outer peripheral wall of the locking device 11, and a guide groove 221 corresponding to the guide strip 13 is provided on the inner peripheral wall of the locking device 3 22. When the male head 1 and the female head 2 are engaged, the guide strip 13 moves along the direction of the guide groove 221. The design of the guide strip 13 and the guide groove 221 has a guiding effect on the engagement of the male head 1 and the female head 2, thereby effectively improving the accuracy and convenience of the engagement of the two.
[0050] Preferably, there are at least two guide bars 13 on the outer peripheral wall of the locking device 11, and the guide bars 13 are arranged parallel to each other, and the guide grooves 221 are arranged corresponding to the guide bars 13; by setting a plurality of the guide bars 13, the guiding and engaging force of the male head 1 and the female head 2 is more balanced, further improving the guiding effect.
[0051] The following is a detailed description of the working principle of the utility model;
[0052] When in use, first move the locking piece 3 toward the rear until the limiting arm 33 in the locking piece 3 abuts against the limiting step 28; then move the male head 1 toward the female head 2, so that the locking device 11 is embedded in the connecting cavity 23. At this time, the locking hook 12 enters the locking cavity 25 and engages with the barb 243 to achieve the first locking. As the male head 1 continues to move, the locking hook 12 continues to move and, under the guidance of the second inclined surface 121, the locking hook 12 slides to the bottom of the locking plate 26, and finally slides into the locking groove 261 and is engaged and fixed with the locking plate 26 to lock for the second time as shown; finally, push the locking piece 3 toward the male head 1, so that the hook 321 of the locking piece 3 is engaged with the first front end 263 of the locking plate 26, thereby completing the third locking.
[0053] The innovation of the present utility model lies in the fitting design of the connection cavity and the upper locking device 1, which effectively improves the connection accuracy and stability of the male head and the female head. At the same time, a locking cavity is communicated above the connection cavity, and a locking groove, a hook in the locking member, and a barb in the movable plate are provided in the locking cavity, so as to realize three times of locking of the locking hook on the upper locking device 1, thereby effectively improving the connection strength and reliability of the male head and the female head.
[0054] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.
[0055] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A locking structure of a connector, characterized in that, It includes a male head (1) and a female head (2) that can be mutually engaged, and a locking member (3) arranged between the male head (1) and the female head (2). The male head (1) is provided with a first locking device (11), the female head (2) is provided with a second locking device (21) and a third locking device (22). A connecting cavity (23) is arranged between the second locking device (21) and the third locking device (22), and the first locking device (11) is slidably engaged in the connecting cavity (23). Wherein, a fourth locking device (24) is further arranged at the top of the third locking device (22). A locking cavity (25) communicating with the connecting cavity (23) is arranged in the fourth locking device (24). A locking plate (26) is arranged in the locking cavity (25). A locking hook (12) is arranged on the first locking device (11). The locking hook (12) is clamped with the locking plate (26) to fix the engagement between the male head (1) and the female head (2).
2. The locking structure of a connector according to claim 1, wherein, A locking groove (261) is arranged in the locking plate (26). The locking hook (12) is clamped in the locking groove (261) and abuts against the first front inner wall (262) of the locking groove (261).
3. The locking structure of a connector according to claim 2, characterized in that, In the locking cavity (25) and above the locking plate (26), a fixing plate (27) is fixedly arranged. A through hole (271) is arranged between the fixing plate (27) and the locking plate (26). The locking member (3) is slidably connected in the through hole (271). Wherein, a sliding groove (272) is arranged in the fixing plate (27). A sliding block (31) corresponding to the sliding groove (272) is fixedly arranged at the top of the locking member (3). The sliding block (31) is slidably connected in the sliding groove (272). One end of the locking member (3) is further provided with a catch (321).
4. The locking structure of a connector according to claim 3, characterized in that, A first inclined surface (3211) is arranged at the front end of the catch (321). A second inclined surface (121) corresponding to the first inclined surface (3211) is arranged at the rear end of the locking hook (12).
5. The locking structure of a connector according to claim 4, characterized in that, A third inclined surface (3212) is arranged at the rear end of the catch (321). The third inclined surface (3212) and the first inclined surface (3211) form a "V" - shaped structure. A fourth inclined surface (2631) corresponding to the third inclined surface (3212) is arranged at the front end of the locking plate (26).
6. The locking structure of a connector according to claim 3, characterized in that, A limiting step (28) is arranged between the fixing plate (27) and the locking plate (26). A limiting arm (33) corresponding to the limiting step (28) is arranged on the side wall of the locking member (3). In the unlocked state, the limiting arm (33) abuts against the limiting step (28) to prevent the locking member (3) from retreating.
7. The locking structure of a connector according to claim 3, characterized in that, A pushing plate (34) is fixedly arranged at the top of the sliding block (31). The pushing plate (34) and the locking member (3) are respectively clamped and connected with the fixing plate (27) from above and below.
8. The locking structure of a connector according to claim 7, characterized in that, One end of the pushing plate (34) is provided with a pushing part (341) extending away from the second locking device (21) and in a stepped shape.
9. The locking structure of a connector according to claim 1, characterized in that, The fourth locking device (24) is provided with a movable opening (241) communicating with the locking cavity (25). A movable plate (242) is arranged in the movable opening (241). A barb (243) corresponding to the locking hook (12) is arranged at the bottom of the front end of the movable plate (242). The barb (243) is located in the locking cavity (25) and in front of the locking plate (26).
10. The locking structure of a connector according to claim 1, characterized in that, Guide strips (13) are arranged on the outer peripheral wall of the first locking device (11). Guide grooves (221) corresponding to the guide strips (13) are arranged on the inner peripheral wall of the third locking device (22).