Lock catch and differential waterproof connector

Abstract

The utility model discloses a lock catch and a differential waterproof connector, comprising a body, the rear end of the body is provided with a rear cavity, the bottom of the rear cavity is also provided with a jack penetrating forward, the bottom of the rear cavity is also provided with a first elastic lock arm corresponding to the jack, the first elastic lock arm extends to the rear end, and the second elastic lock arm extends to the rear end. A limiting block protruding inwards is arranged at the rear end of the first elastic locking arm, the rear end face of the limiting block is a wedge-shaped face, the front end face of the limiting block is a retaining end face, a back-off lock hole penetrating forwards is formed in the bottom of the rear cavity, and a plurality of limiting protection plates extending backwards are arranged on the rear end face of the body. The beneficial effects of the utility model are that the lock catch achieves the secondary locking function of the cable assembly, and also achieves the axial fixation of the sealing ring with a waterproof function, thereby effectively solving the risk that the sealing ring is brought out when the waterproof connector is matched with the plugging end; a base of the connector is provided with a primary lock, and an elastic barb of the primary lock is matched with an inverted lock hole, so that a lock catch is fixed, and secondary locking is realized.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a locking and differential waterproof connector. Background Art

[0002] The existing vehicle-mounted high-speed differential waterproof connector has many components, high parts investment costs and complex plastic shell mold molding process, which makes the assembly of the entire product difficult and costly. In addition, after the cable assembly is installed, its locking and holding force is insufficient, which affects the reliability of the cable assembly and the reliability of the entire connector. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a locking buckle and differential waterproof connector.

[0004] The purpose of the utility model is achieved through the following technical scheme: a lock, including a main body, a rear cavity is opened at the rear end of the main body, a plug hole is also opened at the bottom of the cavity of the rear cavity and penetrates forward, a first elastic locking arm corresponding to the plug hole is also arranged at the bottom of the cavity of the rear cavity, the first elastic locking arm extends to the rear end, and a limit block protruding inward is arranged at the rear end of the first elastic locking arm, the rear end face of the limit block is a wedge-shaped face, the front end face of the limit block is a stop end face, an inverted lock hole is opened at the bottom of the cavity of the rear cavity and penetrates forward, and a plurality of limit guard plates extending backward are arranged on the rear end face of the main body.

[0005] Optionally, the front end of the inverted lock hole is an expanded hole, and the rear end of the inverted lock hole is a contracted hole.

[0006] Optionally, the main body is a rectangular structure, the rear cavity is a rectangular cavity, there are four jacks, and the four jacks are distributed in a matrix, and the inverted lock hole is located in the center of the cavity surrounded by the four jacks.

[0007] A differential waterproof connector, including a base, a sealing ring, a cable assembly, a sealing body, and a lock buckle. The front end of the base is provided with an installation cavity, the bottom of the cavity of the installation cavity is provided with a boss, the boss is provided with a mounting hole, and a second elastic locking arm extending forward is also provided on the boss. The second elastic locking arm is located on the inner side of the corresponding limit guard plate, and the second elastic locking arm is located on one side of the mounting hole. The front end of the second elastic locking arm is provided with a claw portion, and the rear side wall of the claw portion is a wedge-shaped surface. The boss is also provided with pairs of elastic barbs extending forward. The rear end of the base is provided with a There is a tail cavity, the mounting hole is connected with the tail cavity, the lock is installed in the mounting cavity, and the elastic hook is stuck in the inverted lock hole, the front end of the cable assembly passes through the mounting hole, and the front end of the cable assembly is installed in the plug hole of the lock, the rear end of the cable assembly is sleeved with a sealing body, the sealing body is located in the tail cavity, an annular groove is opened on the cable assembly, the claw of the second elastic locking arm is stuck in the annular groove, the limit block of the first elastic locking arm of the lock is stuck in the annular groove, the sealing ring is sleeved on the boss, and the sealing ring is located on the rear side of the limit guard plate.

[0008] Optionally, a tail cover is installed at the rear end of the base, and the rear end of the cable assembly passes through the tail cover.

[0009] Optionally, a positioning lock hole is provided on the tail cover, and a fixing boss which is locked with the positioning lock hole is provided on the outer side of the rear end portion of the base, and the boss is stuck in the corresponding positioning lock hole.

[0010] The utility model has the following advantages:

[0011] 1. The differential waterproof connector of the utility model has a simple lock structure and is easy to form. While realizing the secondary locking function of the cable assembly, it also plays an axial fixing role on the sealing ring with waterproof function, effectively solving the risk of the sealing ring being brought out when the waterproof connector and the plug end are mated with each other;

[0012] 2. The base of the connector of the utility model has a primary lock, and its elastic hook cooperates with the undercut lock hole to fix the lock and realize the secondary lock. The base design structure is novel, and it realizes more functions but is easy to mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the differential waterproof connector is shown in Figure 1. Figure 1 ;

[0014] Figure 2 The structure of the differential waterproof connector is shown in Figure 1. Figure 2 ;

[0015] Figure 3 for Figure 2 Schematic cross-sectional view of AA in the figure;

[0016] Figure 4 is a schematic diagram of the structure of the base;

[0017] Figure 5 for Figure 4 A schematic cross-sectional view of the middle BB;

[0018] Figure 6 is a schematic diagram of the structure of the lock;

[0019] Figure 7 for Figure 6 Schematic cross-sectional view of CC;

[0020] In the figure, 100-lock, 200-base, 300-cable assembly, 400-sealing ring, 500-sealing body, 600-tail cover, 101-jack, 102-first elastic locking arm, 103-inverted locking hole, 104-limiting guard plate, 105-rear cavity, 201-installing cavity, 202-installing hole, 203-second elastic locking arm, 204-boss, 205-elastic barb, 301-annular groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1 and Figure 2 As shown, a differential waterproof connector includes a base 200, a sealing ring 400, a cable assembly 300, a sealing body 500, and a lock 100. In this embodiment, as Figure 5 and Figure 6 As shown, the lock buckle 100 includes a body, a rear cavity 105 is provided at the rear end of the body, a plug hole 101 is also provided at the bottom of the rear cavity 105, and a first elastic locking arm 102 corresponding to the plug hole 101 is also provided at the bottom of the rear cavity 105. The first elastic locking arm 102 extends to the rear end, and a limit block protruding inward is provided at the rear end of the first elastic locking arm 102. The rear end surface of the limit block is a wedge-shaped surface, and the front end surface of the limit block is a stop end surface. The bottom of the rear cavity 105 is provided with an inverted lock hole 103 that penetrates forward. Further, as shown Figure 3 and Figure 4As shown, a mounting cavity 201 is provided at the front end of the base 200, a boss 204 is provided at the bottom of the cavity of the mounting cavity 201, a mounting hole 202 is provided on the boss 204, and a second elastic locking arm 203 extending forward is also provided on the boss 204, the second elastic locking arm 203 is located on one side of the mounting hole 202, a claw is provided at the front end of the second elastic locking arm 203, and the rear side wall of the claw is a wedge-shaped surface. In this embodiment, the claw and the limit block are located on the same circumference, and on this circumference, the claw is located on one side of the limit block. The boss 204 is also provided with pairs of elastic barbs 205 extending forward, and a tail cavity is provided at the rear end of the base 200, and the mounting hole 202 is connected to the tail cavity. The lock buckle 100 is installed in the mounting cavity 201, and the elastic barb 205 is stuck in the undercut lock hole 103. In this embodiment, as shown in FIG. Figure 6 As shown, the front end of the inverted lock hole 103 is an expanded hole, and the rear end of the inverted lock hole 103 is a shrinkage hole, and the hook portion of the elastic barb 205 extends outward, and an inclined surface is provided at the insertion end of the hook portion of the elastic barb 205. When the elastic barb 205 enters the shrinkage hole, the elastic barb 205 shrinks inwardly under the action of the shrinkage hole, thereby generating an elastic restoring force. When the elastic barb 205 enters the expanded hole, the elastic barb 205 opens outward under the action of the elastic restoring force, thereby making the hook portion of the elastic barb 205 hook the bottom of the expanded hole, thereby realizing the installation of the lock buckle 100 and the base 200. Furthermore, the inverted lock hole 103 is a rectangular hole, and the expanded hole is also a rectangular hole. The vertical width of the middle area of ​​the inverted lock hole 103 matches the spacing between the two outer sides of the two elastic arms of the elastic barb 205.

[0028] In this embodiment, the front end of the cable assembly 300 passes through the mounting hole 202, and the front end of the cable assembly 300 is installed in the jack 101 of the lock buckle 100, and the rear end of the cable assembly 300 is provided with a sealing body 500, and the sealing body 500 is located in the tail cavity. An annular groove 301 is provided on the cable assembly 300, and the claw of the second elastic locking arm 203 is stuck in the annular groove 301, and the limit block of the first elastic locking arm 102 of the lock buckle 100 is stuck in the annular groove 301, and the sealing ring 400 is sleeved on the boss 204, and the sealing ring 400 is located on the rear side of the limit guard plate 104. During installation, the sealing body 500 is first installed on the rear end of the cable assembly 300, and then the front end of the cable assembly 300 is inserted from the tail cavity and passed through When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position, and the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position, and the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position, and the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position. When the first locking arm 102 is in the locking position, the first locking arm 102 is in the locking position. Figure 5 and Figure 6 As shown, a plurality of limit guard plates 104 extending backward are arranged on the rear end surface of the body, and further, the second elastic locking arm 203 is located on the inner side of the corresponding limit guard plate 104. Optionally, the body is a rectangular structure, the rear cavity 105 is a rectangular cavity, the number of the jacks 101 is four, and the four jacks 101 are distributed in a matrix, and the inverted lock hole 103 is located in the center of the cavity surrounded by the four jacks 101, that is, the number of the second elastic locking arm 203 is also four, the limit guard plate 104 is also four, and the limit guard plate 104 is located in the body. In the fourth embodiment, when the base 200 and the lock buckle 100 are installed, the limiting guard plate 104 can limit the outward extension of the second elastic locking arm 203. In the present embodiment, the second elastic locking arm 203 cannot be separated from the annular groove 301 under the action of the limiting guard plate 104, thereby further ensuring the reliability of the installation of the cable assembly 300. In addition, the limiting guard plate 104 can also limit the axial activity space of the sealing ring 400, thereby compressing the sealing ring 400 in a limited space, thereby ensuring the sealing performance of the sealing ring 400.

[0029] In this embodiment, if Figure 1As shown, a tail cover 600 is also installed at the rear end of the base 200, and the rear end of the cable assembly 300 passes through the tail cover 600. A positioning lock hole is provided on the tail cover 600, and a fixing boss that is locked with the positioning lock hole is provided on the outer side of the rear end of the base 200, and the boss 204 is stuck in the corresponding positioning lock hole. In this embodiment, the tail cover 600 also has a rectangular cavity, and a plurality of grooves are provided on the side walls of the rectangular cavity, so that the tail cover 600 can be opened outward when subjected to an outward opening force. That is to say, when the tail cover 600 is installed, the side wall of the tail cover 600 in contact with the fixing boss can be opened outward and generate an elastic restoring force. When the fixing boss enters the positioning lock hole, the side wall is reset, thereby realizing the installation of the tail cover 600 and the base 200. In order to install the tail cover 600 and the base 200, the rear side surface of the fixing boss is a guiding inclined surface.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lock buckle, characterized in that: The invention comprises a main body, a rear end of the main body is provided with a rear cavity, the bottom of the cavity of the rear cavity is also provided with a socket extending forward, the bottom of the cavity of the rear cavity is also provided with a first elastic locking arm corresponding to the socket, the first elastic locking arm extends to the rear end, and the rear end of the first elastic locking arm is provided with a limit block protruding inward, the rear end face of the limit block is a wedge-shaped face, the front end face of the limit block is a stop end face, the bottom of the cavity of the rear cavity is provided with an inverted lock hole extending forward, and the rear end face of the main body is provided with a plurality of limit guard plates extending backward.

2. A lock buckle according to claim 1, characterized in that: The front end of the inverted lock hole is an expanded hole, and the rear end of the inverted lock hole is a contracted hole.

3. A lock buckle according to claim 1 or 2, characterized in that: The main body is a rectangular structure, the rear cavity is a rectangular cavity, there are four jacks, and the four jacks are distributed in a matrix, and the inverted lock hole is located in the center of the cavity surrounded by the four jacks.

4. A differential waterproof connector, comprising a base, a sealing ring, a cable assembly, and a sealing body, characterized in that: It also includes the lock buckle according to any one of claims 1 to 3, wherein the front end of the base is provided with an installation cavity, the bottom of the cavity of the installation cavity is provided with a boss, a mounting hole is provided on the boss, a second elastic locking arm extending forward is also provided on the boss, the second elastic locking arm is located on the inner side of the corresponding limiting guard plate, the second elastic locking arm is located on one side of the mounting hole, a claw is provided at the front end of the second elastic locking arm, the rear side wall of the claw is a wedge-shaped surface, and pairs of elastic barbs extending forward are also provided on the boss, a tail cavity is provided at the rear end of the base, the mounting hole and the tail cavity are connected to each other. The rear end of the cable assembly is connected to the rear cavity, the lock buckle is installed in the installation cavity, and the elastic barb is stuck in the barb lock hole, the front end of the cable assembly passes through the installation hole, and the front end of the cable assembly is installed in the insertion hole of the lock buckle, the rear end of the cable assembly is sleeved with the sealing body, the sealing body is located in the tail cavity, an annular groove is opened on the cable assembly, the claw of the second elastic locking arm is stuck in the annular groove, the limiting block of the first elastic locking arm of the lock buckle is stuck in the annular groove, the sealing ring is sleeved on the boss, and the sealing ring is located on the rear side of the limiting guard plate.

5. A differential waterproof connector according to claim 4, characterized in that: A tail cover is also installed at the rear end of the base, and the rear end of the cable assembly passes through the tail cover.

6. A differential waterproof connector according to claim 5, characterized in that: A positioning lock hole is provided on the tail cover, and a fixing boss which is locked with the positioning lock hole is provided on the outer side of the rear end portion of the base, and the boss is clamped in the corresponding positioning lock hole.

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