Elastic lock catch and waterproof connector

Abstract

The elastic lock catch comprises a base, a shielding assembly, a sealing ring and a wire sealing body, the elastic lock catch comprises a body, the rear end portion of the body is provided with a cavity, the bottom of the cavity is provided with an insertion hole, the edge of the insertion hole is provided with a first elastic lock arm extending backwards, the side wall of the cavity is further provided with a split groove, and the split groove is provided with a second elastic lock arm extending backwards. A protection wall is formed between the two corresponding split grooves and located on the side corresponding to the first elastic locking arm. The one-time lock has the advantages that the retaining wall is arranged and can limit the sealing ring, the sealing ring can well achieve the sealing function, meanwhile, the retaining wall can limit the moving space of the first elastic lock arm, the retaining force of the one-time lock is stable, and the reliability of the one-time lock is improved.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to an elastic lock buckle and a waterproof connector. Background Art

[0002] The existing vehicle-mounted high-speed waterproof connector lacks the retention force of a single lock and has a complex base structure, which leads to a complex plastic mold molding process; the inconvenience of removing and removing parts makes the assembly of the entire product difficult, affecting product performance; and the large number of parts in the product makes the cost of the entire product high. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide an elastic lock and a waterproof connector.

[0004] The purpose of the utility model is achieved through the following technical scheme: an elastic lock, including a main body, a cavity is opened on the rear end of the main body, a socket is opened at the bottom of the cavity, a first elastic locking arm extending backward is arranged at the edge of the socket, a split groove is also arranged on the side wall of the cavity, a protective wall is formed between two corresponding split grooves, and the protective wall is located on one side corresponding to the first elastic locking arm.

[0005] Optionally, the main body is a rectangular structure, with four sockets, and the four sockets are distributed in a matrix, and the protective walls are located on the four corners of the main body.

[0006] Optionally, a limiting block protruding inwardly is provided at the rear end of the first elastic locking arm, the rear end surface of the limiting block is a wedge-shaped surface, and the front side wall of the limiting block and the arm body of the first elastic locking arm form a limiting step.

[0007] A waterproof connector comprises a base, a shielding assembly, a sealing ring and a sealing body, and also comprises an elastic locking buckle. The front end portion of the base is provided with an installation cavity, the elastic locking buckle is installed in the installation cavity, the bottom of the installation cavity is provided with a forward extending boss, and an installation gap is provided between the boss and the inner wall of the installation cavity, a mounting hole is provided on the boss, 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 protective wall, and the second elastic locking arm and the corresponding first elastic locking arm are located on the same circumference, on the circumference, the second elastic locking arm is located on one side of the first elastic locking arm, and the second elastic locking arm is located at the edge of the corresponding mounting hole, the sealing ring is sleeved on the boss, the rear end portion of the base is provided with a tail cavity, the mounting hole and the tail cavity are connected, the head of the shielding assembly passes through the mounting hole, and the front end portion of the shielding assembly is installed in the jack, an annular groove is provided on the shielding assembly, the rear end portion of the first elastic locking arm and the front end portion of the second elastic locking arm are both located in the annular groove, the sealing body is installed at the rear end portion of the shielding assembly, and the sealing body is located in the tail cavity.

[0008] Optionally, a tail cover is also installed at the rear end of the base, and the rear end of the shielding component 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 fixing boss is stuck in the corresponding positioning lock hole.

[0010] Optionally, the sealing ring is provided with a plurality of annular concave grooves arranged at intervals.

[0011] Optionally, a plurality of outer annular grooves arranged at intervals are provided on the outer edge of the sealing body, an inner annular groove is further provided in the through hole of the sealing body, and the inner annular grooves in adjacent sealing bodies are staggered in the axial direction.

[0012] Optionally, a guide groove is provided on the inner wall of the installation cavity, and a guide block extending backward is provided at the rear end of the elastic lock, the guide block is slidably fitted in the guide groove, a positioning hole is provided on the guide block, and a positioning boss is provided on the groove wall of the guide groove.

[0013] Optionally, the front end portion of the second elastic locking arm is provided with an inwardly protruding claw portion, and the rear end surface of the claw portion is a wedge-shaped surface.

[0014] The utility model has the following advantages: the elastic lock buckle of the utility model can limit the sealing ring by setting the protective wall, so that the sealing ring can well realize the sealing function, and at the same time the protective wall can also limit the activity space of the first elastic locking arm, thereby stabilizing the holding force of the primary lock, thereby improving the reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of a waterproof connector;

[0016] Figure 2 is a cross-sectional schematic diagram of a waterproof connector;

[0017] Figure 3 The structure of the elastic lock is shown in FIG. Figure 1 ;

[0018] Figure 4 The structure of the elastic lock is shown in FIG. Figure 2 ;

[0019] Figure 5 The structure of the base Figure 1 ;

[0020] Figure 6 The structure of the base Figure 2 ;

[0021] Figure 7 is a schematic diagram of the structure of the shielding component;

[0022] Figure 8 It is a structural schematic diagram of the sealing ring;

[0023] Fig. 9 It is a structural schematic diagram of the sealing body;

[0024] In the figure, 100-elastic lock buckle, 200-base, 300-shielding assembly, 400-sealing ring, 500-sealing body, 600-tail cover, 101-cavity, 102-jack, 103-first elastic locking arm, 104-splitting groove, 105-wall guard, 106-guide block, 107-positioning hole, 201-mounting cavity, 202-mounting hole, 203-second elastic locking arm, 204-guide groove, 205-positioning boss, 206-column, 207-fixing boss, 301-annular groove, 401-annular concave groove, 501-outer annular groove, 502-inner annular groove, 601-positioning lock hole. DETAILED DESCRIPTION

[0025] 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.

[0026] 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 claimed invention, 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 the field without creative work are within the scope of protection of the present invention.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figure 1 and Figure 2 As shown, a waterproof connector includes a base 200, a shielding assembly 300, a sealing ring 400, a sealing body 500 and an elastic lock 100, as shown in FIG. Figure 3 and Figure 4 As shown, the elastic lock buckle 100 includes a body, a cavity 101 is formed on the rear end of the body, a plug hole 102 is formed at the bottom of the cavity 101, and a first elastic locking arm 103 extending backward is provided at the edge of the plug hole 102. A split groove 104 is also provided on the side wall of the cavity 101, and a protective wall 105 is formed between two corresponding split grooves 104. The protective wall 105 is located on one side corresponding to the first elastic locking arm 103, as shown in FIG. Figure 5 and Figure 6As shown, a mounting cavity 201 body 101 is provided at the front end of the base 200, and the elastic lock buckle 100 is installed in the mounting cavity 201 body 101. A forward extending boss is provided at the bottom of the mounting cavity 201 body 101, and a mounting gap is provided between the boss and the inner wall of the mounting cavity 201 body 101. A mounting hole 202 is provided on the boss, and a second elastic locking arm 203 extending forward is also provided on the boss. The second elastic locking arm 203 is located on the inner side of the corresponding protective wall 105, and the second elastic locking arm 203 and the corresponding first elastic locking arm 103 are located on the same circumference. On the circumference, the second elastic locking arm 203 is located on one side of the first elastic locking arm 103, and the second elastic locking arm 203 is located at the edge of the corresponding mounting hole 202. The head of the shielding component 300 passes through the mounting hole 202, and the front end of the shielding component 300 is installed in the jack 102, as shown in FIG. Figure 7 As shown, an annular groove 301 is provided on the shielding component 300, and the rear end portion of the first elastic locking arm 103 and the front end portion of the second elastic locking arm 203 are both located in the annular groove 301. In this embodiment, a limit block protruding inward is provided at the rear end of the first elastic locking arm 103, and the rear end surface of the limit block is a wedge-shaped surface, and the front side wall of the limit block and the arm body of the first elastic locking arm 103 form a limit step. Therefore, when the shielding component 300 is installed, the shielding component 300 first contacts with the rear end surface of the first elastic locking arm 103, that is, the shielding component 300 contacts with the wedge-shaped surface, the first elastic locking arm 103 is subjected to force, and the first elastic locking arm 103 opens to generate an elastic restoring force. With the relative movement of the shielding component 300 and the elastic lock buckle 100, when the limit block is located in the annular groove 301, the limit block enters the annular groove 301, so that the limit step and the annular groove 301 abut against the surface. The second elastic locking arm 203 is in contact with the shielding assembly 300, thereby preventing the shielding assembly 300 from axially retreating relative to the elastic locking buckle 100. During the installation of the shielding assembly 300, the shielding assembly 300 also contacts the second elastic locking arm 203. Furthermore, the front end portion of the second elastic locking arm 203 is provided with a claw protruding inwardly, and the rear end face of the claw is a wedge-shaped surface. When the shielding assembly 300 contacts the wedge-shaped surface of the claw, the second elastic locking arm 203 is stressed, and the second elastic locking arm 203 opens to generate an elastic restoring force. As the shielding assembly 300 is continuously inserted, when the claw is located in the annular groove 301, the claw enters the annular groove 301 under the action of the elastic restoring force, thereby making the front end face of the second elastic locking arm 203 contact with the abutting surface of the annular groove 301, so that the shielding assembly 300 cannot retreat axially. Therefore, the waterproof connector has a double stop structure, thereby ensuring the reliability of the installation of the shielding assembly 300.

[0032] In this embodiment, if Figure 3 and Figure 4As shown, the main body is a rectangular structure, the installation cavity 201 body 101 and the tail cavity are both rectangular cavities, there are four jacks 102, and the four jacks 102 are distributed in a matrix. Preferably, the four jacks 102 are respectively located at the four corners of the main body, and the protective wall 105 is also located on the four corners of the main body. The protective wall 105 can limit the outward arc of the second elastic locking arm 203, so that the claw of the second elastic locking arm 203 is always located in the annular groove 301, thereby ensuring the reliability of the locking of the second elastic locking arm 203 and the shielding assembly 300. During assembly, the shielding assembly 300 is first installed in the base 200, so that the claw of the second elastic locking arm 203 is stuck in the annular groove of the shielding assembly 300. The first elastic locking arm 103 is fixed to the groove 301 of the shielding assembly 300 to form a secondary lock. At the same time, the protective wall 105 also protects the second elastic locking arm 203. Of course, the protective wall 105 and the arm body of the second elastic locking arm 203 are both arc-shaped structures. In order to facilitate plugging and unplugging, there is a gap between the protective wall 105 and the second elastic locking arm 203. When the second elastic locking arm 203 is stretched outward and contacts the inner side of the protective wall 105, the claw portion is still stuck in the annular groove 301 of the shielding assembly 300. In this embodiment, since there are four jacks 102, there are also four corresponding shielding components 300. After the four shielding components are organized, a cavity will be formed between the four shielding components, and a column 206 matching the cavity is provided on the boss. When the shielding component 300 is installed, the column 206 will play a role of limiting support, thereby ensuring the reliability of the installation of the shielding component 300 and the base 200.

[0033] In this embodiment, if Figure 8 and Fig. 9 As shown, the sealing ring 400 is mounted on the boss, the rear end of the base 200 is provided with a tail cavity, the mounting hole 202 is connected with the tail cavity, the sealing body 500 is installed at the rear end of the shielding assembly 300, and the sealing body 500 is located in the tail cavity. Further, the sealing ring 400 is provided with a plurality of ring concave grooves 401 arranged at intervals. When the sealing ring 400 is compressed, the ring concave grooves 401 can play a compensating role, and a protective wall 105 is formed between the bottom of the mounting cavity 201 and the body 101. A limiting groove is formed, which can limit the sealing ring 400, so that the sealing ring 400 can well realize the sealing function; and a plurality of outer annular grooves 501 are arranged at intervals on the outer edge of the sealing body 500, and the outer annular grooves 501 can also play a compensatory role in the compression process of the sealing body 500. Furthermore, an inner annular groove 502 is also formed in the through hole of the sealing body 500, and the inner annular grooves 502 in adjacent sealing bodies 500 are staggered in the axial direction, thereby preventing material stacking and assembly difficulty when installing the wire.

[0034] In this embodiment, if Figure 1 and Figure 2 As shown, a tail cover 600 is also installed at the rear end of the base 200, and the rear end of the shielding assembly 300 passes through the tail cover 600. Further, a positioning lock hole 601 is opened on the tail cover 600, and a fixing boss 207 that is locked with the positioning lock hole 601 is opened on the outer side of the rear end of the base 200. The fixing boss card 207 is in the corresponding positioning lock hole 601. In this embodiment, the tail cover 600 also has a rectangular cavity 101, and a plurality of The groove is missing, so that the tail cover 600 can expand outward when subjected to an outward opening force, that is, when the tail cover 600 is installed, the side wall of the tail cover 600 in contact with the fixed boss 207 can expand outward and generate an elastic restoring force. When the fixed boss 207 enters the positioning lock hole 601, 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 fixed boss 207 is a guiding inclined surface.

[0035] In this embodiment, if Figure 8 and Fig. 9 As shown, a guide groove 204 is provided on the inner wall of the installation cavity 201 body 101. Figure 3 As shown, the rear end of the elastic lock buckle 100 is provided with a guide block 106 extending backwards, and the guide block 106 is a cantilever beam. When the guide block 106 is subjected to inward pressure, the guide block 106 can be compressed inwards, and the guide block 106 is slidably matched in the guide groove 204. The guide block 106 is provided with a positioning hole 107, and the groove wall of the guide groove 204 is provided with a positioning boss 205. When installing, the elastic lock buckle 100 is inserted into the installation cavity 201 body 101, so that the guide block 106 slides It fits in the guide groove 204, thereby ensuring the installation accuracy of the elastic lock buckle 100 and the base 200. When the guide block 106 contacts the positioning boss 205, the guide block 106 is compressed inwardly, thereby generating an elastic restoring force. When the guide block 106 enters the positioning hole 107, the guide block 106 is reset, and the positioning boss 205 enters the positioning hole 107, and then the elastic lock buckle 100 continues to be moved until the limit block of the first elastic locking arm 103 is stuck in the annular groove 301.

[0036] 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. An elastic lock, characterized in that: It includes a main body, a cavity is provided on the rear end of the main body, a socket is provided at the bottom of the cavity, a first elastic locking arm extending backward is provided at the edge of the socket, a split groove is also provided on the side wall of the cavity, a protective wall is formed between two corresponding split grooves, and the protective wall is located on the side corresponding to the first elastic locking arm.

2. The elastic lock according to claim 1, characterized in that: The main body is a rectangular structure, the number of the plug holes is four, and the four plug holes are distributed in a matrix, and the protective wall is located on the four corners of the main body.

3. An elastic lock buckle according to claim 1 or 2, characterized in that: A limiting block protruding inward is arranged at the rear end of the first elastic locking arm, the rear end surface of the limiting block is a wedge-shaped surface, and the front side wall of the limiting block and the arm body of the first elastic locking arm form a limiting step.

4. A waterproof connector, comprising a base, a shielding assembly, a sealing ring and a sealing body, characterized in that: It also includes the elastic lock buckle according to any one of claims 1 to 3, wherein the front end portion of the base is provided with a mounting cavity, the elastic lock buckle is installed in the mounting cavity, the bottom of the mounting cavity is provided with a forward extending boss, there is a mounting gap between the boss and the inner wall of the mounting cavity, a mounting hole is provided on the boss, 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 guard wall, and the second elastic locking arm and the corresponding first elastic locking arm are located on the same circumference, and on the circumference, the second elastic locking arm is located at the first elastic locking arm. On one side of the locking arm, the second elastic locking arm is located at the edge corresponding to the mounting hole, the sealing ring is mounted on the boss, a tail cavity is provided at the rear end of the base, the mounting hole is connected to the tail cavity, the head of the shielding assembly passes through the mounting hole, and the front end of the shielding assembly is installed in the jack, an annular groove is provided on the shielding assembly, the rear end of the first elastic locking arm and the front end of the second elastic locking arm are both located in the annular groove, the wire sealing body is installed at the rear end of the shielding assembly, and the wire sealing body is located in the tail cavity.

5. A 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 shielding component passes through the tail cover.

6. A 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 fixing boss is clamped in the corresponding positioning lock hole.

7. A waterproof connector according to claim 4, characterized in that: The sealing ring is provided with a plurality of annular concave grooves arranged at intervals.

8. A waterproof connector according to claim 4, characterized in that: The outer edge of the sealing body is provided with a plurality of outer annular grooves arranged at intervals, and the through hole of the sealing body is also provided with inner annular grooves, and the inner annular grooves in adjacent sealing bodies are staggered in the axial direction.

9. A waterproof connector according to claim 4, characterized in that: A guide groove is provided on the inner wall of the installation cavity, and a guide block extending backward is provided at the rear end of the elastic lock buckle. The guide block is slidably fitted in the guide groove, a positioning hole is provided on the guide block, and a positioning boss is provided on the groove wall of the guide groove.

10. A waterproof connector according to claim 4, characterized in that: The front end portion of the second elastic locking arm is provided with an inwardly protruding claw portion, and the rear end surface of the claw portion is a wedge-shaped surface.

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