A lever-type clamping structure of a connector
By using a lever-type snap-fit structure with a rocker arm and fulcrum block design, the shortcomings of traditional connectors in terms of robustness, convenience, and service life are solved, enabling quick assembly and disassembly as well as a secure connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江联和电子有限公司
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
The snap-fit connection structure of traditional plug-in connectors cannot simultaneously meet the requirements of robustness, convenience, disassembly, and service life.
It adopts a lever-type snap-fit structure. Through the design of the rocker plate and fulcrum block, the snap-fit part is raised and disengaged from the snap-fit block, which can achieve quick assembly and disassembly. The snap-fit strength is enhanced by the guide surface and the bevel.
It reduces the force required for unlocking, improves the ease of connector assembly and disassembly, extends service life, and ensures the strength and reliability of the connection.
Smart Images

Figure CN224305067U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically to a lever-type snap-fit structure for a connector. Background Technology
[0002] A connector is an electronic component used for electrical or optical signal connections, typically consisting of a plug and a socket, enabling the connection and disconnection of circuits. They are widely used in various devices and systems, such as computers, communications, automobiles, home appliances, and industrial equipment, ensuring reliable signal and power transmission. Connectors come in a variety of designs and types, including screw connectors, push-button connectors, and terminal connectors. Users can select the appropriate connector based on specific application requirements to meet needs such as durability, sealing, and transmission performance.
[0003] Traditional plug-in connectors consist of male and female plugs, which are directly plugged into each other to form a circuit connection. Currently, male and female plugs are fixed in place by snap-fit connection. However, the current snap-fit connection structure cannot meet the requirements of robustness, convenience, disassembly and service life. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a lever-type snap-fit structure for a connector.
[0005] The technical solution adopted by this utility model is as follows: This application provides a lever-type snap-fit structure for a connector. The connector includes a male plug and a female plug. The lever-type snap-fit structure includes a first connecting part and a second connecting part, one of which is disposed on the male plug and the other on the female plug. The first connecting part includes two side plates and a rocker plate located between the two side plates. The front end of the rocker plate is provided with a locking part, and the rear end is provided with an opening part. A fulcrum block is provided in the middle part. The rocker plate can elastically deform relative to the two side plates. The second connecting part is a locking block adapted to the locking part. When the male plug and the female plug are inserted into place, the locking block is locked in the locking part. When the opening part is pressed, the rocker plate uses the fulcrum block as a fulcrum to make the locking part tilt up and disengage from the locking block.
[0006] In some embodiments, the side of the locking block facing the rocker is provided with a guide surface, and the side of the rocker facing the locking block is provided with a guide surface that cooperates with the guide surface.
[0007] In some embodiments, the side of the locking block facing away from the rocker is provided with a first abutting slope, the lower side of the first abutting slope is inclined toward the rocker, and the locking portion includes a second abutting slope with the same slope direction as the first abutting slope.
[0008] In some embodiments, the inclination angle of the first abutting slope and the second abutting slope relative to the lower end face of the card block is 75°-85°.
[0009] In some embodiments, the upper ends of the two side panels extend toward the center of the rocker, and a gap is provided between the two protective panels, the width of which is smaller than the width of the rocker.
[0010] In some embodiments, the opening portion protrudes upward relative to the rocker and has a pressing slope on the side facing away from or towards the bayonet portion.
[0011] In some embodiments, the rocker and the two side panels are integrally formed.
[0012] In some embodiments, the rocker includes a connecting plate portion extending rearward from both sides of its front end, the rear side of the connecting plate portion being connected to a side upright plate.
[0013] In some embodiments, a locking member is also included, wherein two connecting plates and two side plates form a lock hole, the locking member includes a top plate and an insert plate, the insert plate is provided with a first slot and a second slot, and the connecting plate is provided with a locking block facing the insert plate. When the locking block and the first slot are engaged, the top plate is located outside the lock hole. When the locking block and the second slot are engaged, the top plate prevents the opening portion from pressing down.
[0014] In some embodiments, the fulcrum blocks are two in number and symmetrically arranged on both sides of the middle of the rocker.
[0015] The beneficial effects of this utility model are as follows: This utility model adopts a lever-type snap-fit structure. By simply pressing the opening part, the rocker can use the fulcrum block as a fulcrum to make the snap-fit part lift up and disengage from the snap-fit block. This reduces the force required for unlocking, so as to facilitate the quick disassembly and assembly of the male and female plugs. At the same time, it can greatly extend the service life of the connector and ensure the firmness and reliability of the connection between the male and female plugs. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.
[0017] Figure 1 This is a schematic diagram of a connector according to the present invention;
[0018] Figure 2This is a cross-sectional view of a lever-type snap-fit structure of a connector according to the present invention;
[0019] Figure 3 A cross-sectional view of the public plug-in of this utility model. Figure 1 ;
[0020] Figure 4 This is a schematic diagram of the public plug-in in this utility model. Figure 1 ;
[0021] Figure 5 A cross-sectional view of the public plug-in of this utility model. Figure 2 ;
[0022] Figure 6 This is a schematic diagram of the public plug-in in this utility model. Figure 2 ;
[0023] Figure 7 This is a schematic diagram of the plug-in and locking component in this utility model;
[0024] Figure 8 This is a schematic diagram of the locking component in this utility model;
[0025] Figure 9 This is a schematic diagram of another public plug-in in this utility model;
[0026] Figure 10 This is a schematic diagram of another public plug-in in this utility model. Detailed Implementation
[0027] The following description provides specific application scenarios and requirements for this specification, intended to enable those skilled in the art to make and use the contents of this specification. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.
[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "lateral", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element or component to have a specific orientation, or to be constructed and operated in a specific orientation.
[0029] Secondly, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components and should not be construed as limiting the embodiments of this application.
[0030] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts.
[0031] Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0032] Regarding the accompanying drawings of this application, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this specification. It should also be understood that the drawings are not necessarily drawn to scale.
[0033] like Figures 1 to 10 As shown, this specification provides a lever-type snap-fit structure for a connector. The connector includes a male plug 1 and a female plug 2. The lever-type snap-fit structure includes a first connecting part and a second connecting part, one of which is disposed on the male plug 1 and the other on the female plug 2. In this specification, taking the first connecting part disposed on the male plug 1 and the second connecting part disposed on the female plug 2 as an example, the first connecting part includes two side plates 3 and a rocker plate 4 located between the two side plates 3. The front end of the rocker plate 4 is provided with a locking part 400, and its rear end is provided with an opening part 401. The rocker arm 4 has a fulcrum block 402 in its center, allowing it to elastically deform relative to the two side plates 3. The second connecting part is a locking block 5 that matches the bayonet part 400. When the male plug 1 and female plug 2 are inserted, the locking block 5 engages within the bayonet part 400. This lever-type locking structure allows the rocker arm 4 to tilt up and disengage from the bayonet part 400 by simply pressing the opening part 401, using the fulcrum block 402 as a fulcrum. This not only reduces the force required for unlocking but also significantly extends the connector's lifespan. If a lever-type structure is not used, i.e., the fulcrum block 402 is not provided, then pressing the opening part 401 will cause greater deformation on both sides of the rocker arm 4. Without the assistance of the fulcrum block 402 during deformation recovery, the structure is prone to elastic fatigue, eventually leading to elastic failure and inability to reliably engage with the locking block 5.
[0034] Preferred, such as Figure 2As shown, the side of the locking block 5 facing the rocker 4 is provided with a guide surface 500, and the side of the rocker 4 facing the locking block 5 is provided with a guide surface 407 that cooperates with the guide surface 500. Both the guide surface 500 and the guide surface 407 can be inclined and / or curved surfaces. When the male plug 1 and the female plug 2 are inserted, the locking block 5 can smoothly and quickly snap into the locking part 400 with the cooperation of the guide surface 500 and the guide surface 407.
[0035] In some embodiments, the locking block 5 is provided with a first abutting slope 501 on the side facing away from the rocker 4. The lower side of the first abutting slope 501 is inclined toward the rocker 4. The locking portion 400 includes a second abutting slope 403 with the same slope as the first abutting slope 501. This arrangement provides better locking strength compared to a structure where two vertical surfaces abut against each other.
[0036] The first abutting inclined surface 501 and the second abutting inclined surface 403 have an inclination angle A of 75°-85° relative to the lower end face of the locking block 5. This inclination angle range is just right to ensure that the locking block 5 can be locked into the locking opening 400, while ensuring the strength of the locking.
[0037] In some embodiments, such as Figure 4 As shown, protective plates 6 extend from the upper ends of the two side uprights 3 toward the center of the rocker 4. A gap 7 is provided between the two protective plates 6. The width of the gap 7 is smaller than the width of the rocker 4. Traditional structures either do not have protective plates 6, or they do have protective plates 6 but the two protective plates are connected as one piece. In this case, the protective plates 6 are easily damaged during circulation. In contrast, the use of this split structure enhances the overall impact resistance and avoids damage during circulation.
[0038] like Figure 3 As shown, the opening part 401 protrudes upward relative to the rocker arm 4, and a pressing inclined surface 404 is provided on the side facing away from or towards the latch part 400, so as to facilitate the operation of the opening part 401 to make the latch part 400 rock up and disengage from the latch block 5. Figure 3 The pressing slope 404 is located on the side opposite to the bayonet portion 400.
[0039] Optionally, the rocker plate 4 and the two side upright plates 3 are integrally formed, and the main body of the entire male plug-in 1 is basically integrally formed. Only wiring terminals need to be installed on it, saving unnecessary assembly steps.
[0040] like Figure 5 As shown, the rocker 4 includes a connecting plate portion 405 extending rearward from both sides of its front end. The rear side of the connecting plate portion 405 is connected to the side upright plate 3, thus forming a rocker structure with excellent strength.
[0041] In some embodiments, a locking member 8 is further included, wherein the two connecting plate portions 405 and the two side upright plates 3 form a locking hole 9. The locking member 8 includes a top plate portion 80 and an insert plate portion 81. The insert plate portion 81 is provided with a first slot 810 and a second slot 811. Specifically, as shown in the figure... Figure 8 As shown, two spacers are spaced apart on both sides of the insertion plate portion 81 along its insertion direction. The sides of the spacers are set as inclined surfaces, arc surfaces, or a combination of inclined surfaces and arc surfaces, thus forming a first slot 810 between the two spacers and a second slot 811 between one spacer and the top plate portion 80. The connecting plate portion 405 is provided with a locking block 406 facing the insertion plate portion 81. When the locking block 406 and the first slot 810 are engaged, the top plate portion 80 is located outside the lock hole 9. When the 06 and the second slot 811 are engaged, the top plate 80 blocks the opening part 401 from pressing down. Generally, when the connector leaves the factory, the locking block 406 is in the first slot 810, and the male plug 1 and the female plug 2 can be inserted normally. After the male plug 1 and the female plug 2 are inserted into place, the locking piece 8 is pushed into the lock hole 9, and the locking block 406 moves into the second slot 811. At this time, the top plate 80 also moves to below the opening part 401, blocking the opening part 401 from pressing down, which can play a safety role.
[0042] In some embodiments, such as Figure 9 As shown, there are two fulcrum blocks 402 symmetrically arranged on both sides of the middle part of the rocker 4. They can also press open part 401, and rocker 4 can use fulcrum blocks 402 as fulcrums to make the latch part 400 lift up and disengage from the latch block 5.
[0043] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that the requirements of this application encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.
[0044] Furthermore, it should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art may readily identify some of the devices as separate embodiments when reading this application. That is, the embodiments in this application can also be understood as an integration of multiple sub-embodiments. It is also valid when each sub-embodiment contains fewer than all the features of a single foregoing disclosed embodiment.
[0045] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments of this application. Other modified embodiments are also within the scope of this application. Therefore, the embodiments disclosed herein are merely examples and not limitations. Those skilled in the art can adopt alternative configurations to implement the applications in this application based on the embodiments in this application. Therefore, the embodiments of this application are not limited to the embodiments precisely described in the application.
Claims
1. A lever-type snap-fit structure for a connector, the connector comprising a male plug and a female plug, characterized in that, The lever-type snap-fit structure includes a first connecting part and a second connecting part, one of which is disposed on the male plug and the other on the female plug. The first connecting part includes two side plates and a rocker plate located between the two side plates. The front end of the rocker plate is provided with a locking part, and the rear end is provided with an opening part. A fulcrum block is provided in the middle part. The rocker plate can elastically deform relative to the two side plates. The second connecting part is a locking block adapted to the locking part. When the male plug and the female plug are inserted into place, the locking block is locked in the locking part. When the opening part is pressed, the rocker plate uses the fulcrum block as a fulcrum to make the locking part tilt up and disengage from the locking block.
2. The lever-type snap-fit structure of a connector according to claim 1, characterized in that, The side of the card block facing the rocker is provided with a guide surface, and the side of the rocker facing the card block is provided with a guide surface that cooperates with the guide surface.
3. The lever-type snap-fit structure of a connector according to claim 2, characterized in that, The locking block has a first abutting slope on the side facing away from the rocker, and the lower side of the first abutting slope is inclined toward the rocker. The locking part includes a second abutting slope with the same slope direction as the first abutting slope.
4. The lever-type snap-fit structure of a connector according to claim 3, characterized in that, The first and second abutting inclined surfaces have an inclination angle of 75°-85° relative to the lower end face of the block.
5. The lever-type snap-fit structure of a connector according to claim 1, characterized in that, The upper ends of the two side panels extend towards the center of the rocker, and a gap is provided between the two protective panels, the width of which is smaller than the width of the rocker.
6. The lever latch structure of a connector according to claim 1, wherein The opening part protrudes upward relative to the rocker plate, and a pressing slope is provided on the side facing away from or towards the bayonet.
7. The lever latch structure of a connector according to claim 1, wherein The rocker arm and the two side panels are integrally formed.
8. The lever latch structure of a connector according to claim 1, wherein The rocker includes a connecting plate portion extending rearward from both sides of its front end, and the rear side of the connecting plate portion is connected to the side upright plate.
9. A lever latch structure for a connector according to claim 8, wherein It also includes a locking component, in which two connecting plates and two side plates form a lock hole. The locking component includes a top plate and a insert plate. The insert plate is provided with a first slot and a second slot. The connecting plate is provided with a locking block facing the insert plate. When the locking block and the first slot are engaged, the top plate is located outside the lock hole. When the locking block and the second slot are engaged, the top plate blocks the opening part from pressing down.
10. The lever latch structure of a connector according to claim 8, wherein The fulcrum blocks are two in number and are symmetrically arranged on both sides of the middle of the rocker.