Cable clamp structure for cable connector and cable connector

Abstract

This application provides a cable clamping structure and a cable connector for a cable connector. The cable clamping structure includes: a first sleeve having a first chamber for a cable to pass through, and the first sleeve including a first connecting portion; a second sleeve including a second connecting portion and a plurality of claws arranged circumferentially around the second sleeve; and a first seal including a cylindrical body and a sealing lip disposed on the inner wall of the cylindrical body, the sealing lip being used to enclose the cable. When the first sleeve, the second sleeve, and the first seal are in a first state, the first seal is located inside the second sleeve, the first connecting portion extends into the second connecting portion, the first connecting portion abuts against a first end of the first seal, and the plurality of claws clamp the first seal. Embodiments of this application can improve the waterproof performance of the cable connector.

Description

Technical Field

[0001] This application relates to the field of cable equipment technology, and in particular to a cable clamping structure for a cable connector and a cable connector. Background Technology

[0002] After assembly, cable connectors need to be waterproof. Existing cable connectors typically achieve waterproofing by using a tail sleeve. However, since the tail sleeve is exposed to the outdoors, it is prone to aging and cracking. Therefore, existing cable connectors have an issue with inconsistent waterproofing performance. Utility Model Content

[0003] This application provides a cable clamping structure and a cable connector for cable connectors, which can solve the problem of unstable waterproof performance of existing cable connectors.

[0004] In a first aspect, the cable clamping structure for a cable connector of this application includes:

[0005] A first sleeve, the first sleeve having a first chamber for a cable to pass through, the first sleeve including a first connecting portion;

[0006] The second sleeve includes a second connecting part and a plurality of claws, the plurality of claws being arranged at intervals along the circumference of the second sleeve;

[0007] A first sealing element, comprising a cylindrical body and a sealing lip disposed on the inner wall of the cylindrical body, the sealing lip being used to wrap the cable;

[0008] When the first sleeve, the second sleeve, and the first seal are in the first state, the first seal is located inside the second sleeve, the first connecting part extends into the second connecting part, the first connecting part abuts against the first end of the first seal, and the plurality of claws hold the first seal.

[0009] Optionally, each of the plurality of jaws includes an extension having a protruding structure;

[0010] When the first sleeve, the second sleeve, and the first seal are in the first state, the extension extends out of the second end of the first seal, and the protruding structure is used to prevent the first seal from moving along a first direction, which is the direction from the first end to the second end of the first seal.

[0011] Optionally, the protruding structures of the plurality of claws enclose a clamping space adapted to the cable for clamping the cable.

[0012] Optionally, the protrusion structure includes serrated protrusions.

[0013] Optionally, the outer wall of the first sleeve has a groove surrounding the first sleeve;

[0014] The cable clamping structure also includes:

[0015] The second seal is embedded in the groove.

[0016] Optionally, the groove is located in the region near the first connecting portion.

[0017] Optionally, the second sleeve further includes a first cylindrical portion, which encloses a cylindrical second chamber, and the first cylindrical portion is located between the second connecting portion and the plurality of jaws;

[0018] Each of the plurality of jaws includes a straight section and a bent section. Each of the plurality of jaws is connected to the first cylindrical part through the straight section. The straight sections of the plurality of jaws form a cylindrical third chamber, and the bent sections of the plurality of jaws form a conical fourth chamber.

[0019] The cylindrical body includes a second cylindrical portion and a conical portion;

[0020] The second chamber and the third chamber are used together to accommodate the second cylindrical portion, and the fourth chamber is used to accommodate the conical portion.

[0021] Optionally, the sealing lip is disposed at the connection between the second cylindrical portion and the conical portion.

[0022] Optionally, the first connecting portion includes a first threaded portion, which has an external thread;

[0023] The second connecting portion includes a second threaded portion having an internal thread that is adapted to the first threaded portion.

[0024] Secondly, the cable connector of this application includes:

[0025] The cable clamping structure described in any one of the first aspects;

[0026] The housing includes a third connecting portion;

[0027] The outer casing includes a fourth connecting portion and a closing portion;

[0028] The outer shell and the outer shell sleeve are connected by the third connecting part and the fourth connecting part respectively to form a fifth chamber;

[0029] When the outer shell, the outer shell sleeve, and the cable clamping structure are in the second state, the cable clamping structure is located in the fifth chamber, the third connecting part extends into the fourth connecting part, and the closing part presses against the multiple claws of the cable clamping structure.

[0030] In this embodiment, the cable clamping structure adopts a split structure of a first sleeve and a second sleeve. The first seal can be accommodated in the second sleeve and clamped by the claws of the second sleeve. On the one hand, the first seal is hidden inside and is not easy to age, which can make the waterproof performance more stable. On the other hand, the clamping of the first seal by the claws can make the first seal wrap the cable more stably, thereby further improving the waterproof performance.

[0031] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0032] The accompanying drawings are provided for a better understanding of this solution and do not constitute a limitation of this application. Wherein:

[0033] Figure 1 This is a cross-sectional view of the cable connector provided in an embodiment of this application;

[0034] Figure 2 This is a cross-sectional view of the cable connector connecting the cable provided in the embodiment of this application;

[0035] Figure 3 This is one of the external disassembly diagrams of the cable connector provided in the embodiments of this application;

[0036] Figure 4 This is the second external disassembly diagram of the cable connector provided in the embodiments of this application;

[0037] Figure 5 This is an exploded view of the cable connector provided in the embodiment of this application.

[0038] Figure label:

[0039] A. Cable clamping structure;

[0040] 10. First sleeve; 11. First chamber; 12. First connecting part; 13. Groove;

[0041] 20. Second sleeve; 21. Second connecting part; 22. Claw; 221. Extension part; 222. Protruding structure; 223. Straight section; 224. Bending section; 23. First cylindrical part;

[0042] 30. First sealing element; 31. Cylindrical body; 32. Sealing lip; 311. Second cylindrical portion; 312. Conical portion;

[0043] 40. Cable; 50. Second seal;

[0044] 60. Outer shell; 61. Third connecting part;

[0045] 70. Outer shell; 71. Fourth connecting part; 72. Closing part; 73. Fifth chamber;

[0046] 81. Button sleeve; 82. Button; 83. Locking spring; 84. Base; 85. Insertion hole; 86. Third seal. Detailed Implementation

[0047] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] This application provides a cable clamping structure for a cable connector.

[0050] like Figures 1 to 5 As shown, the cable clamping structure includes:

[0051] The first sleeve 10 has a first chamber 11 through which the cable 40 passes, and the first sleeve 10 includes a first connecting portion 12;

[0052] The second sleeve 20 includes a second connecting part 21 and a plurality of claws 22, which are arranged at intervals along the circumference of the second sleeve 20.

[0053] The first sealing element 30 includes a cylindrical body 31 and a sealing lip 32 disposed on the inner wall of the cylindrical body 31. The sealing lip 32 is used to wrap the cable 40.

[0054] When the first sleeve 10, the second sleeve 20 and the first seal 30 are in the first state, the first seal 30 is located inside the second sleeve 20, the first connecting part 12 extends into the second connecting part 21, the first connecting part 12 abuts against the first end of the first seal 30, and multiple claws 22 clamp the first seal 30.

[0055] In this embodiment, a split structure of two sleeves (i.e., the first sleeve 10 and the second sleeve 20) is adopted, which allows the first sealing element 30 to be placed inside the second sleeve 20, thereby achieving internal sealing of the cable clamping structure A. Compared with external sealing methods, it is not easy to age and has more stable waterproof performance.

[0056] Both the first sleeve 10 and the second sleeve 20 can be made of a material that is not easily deformed (or hard) so that the cable clamping structure A of this application embodiment has a certain impact resistance.

[0057] The first sealing element 30 can be made of an elastic (or soft) material to ensure good sealing performance. The cylindrical body 31 and the sealing lip 32 of the first sealing element 30 can be made of the same material or different materials. The elasticity (or softness) of the cylindrical body 31 of the first sealing element 30 can be appropriately less than the elasticity (or softness) of the sealing lip 32.

[0058] The sealing lip 32 of the first seal 30 can wrap around the cable 40, thereby blocking liquids (such as water) from the outside of the sealing lip 32 and achieving waterproofing.

[0059] Multiple claws 22 can be understood as two or more claws 22. The claws 22 of the first sleeve 10 can clamp the first seal 30. In this way, the clamping force applied by the claws 22 to the first seal 30 can not only better confine the first seal 30 within the second sleeve 20, but also make the sealing lip 32 better wrap the cable 40, thereby ensuring the stability of the waterproof performance.

[0060] The first connecting part 12 and the second connecting part 21 are structures used to connect the first sleeve 10 and the second sleeve 20. The connection method of the first connecting part 12 and the second connecting part 21 can include various methods, such as plug-in or socket connection, or threaded connection. When the first connecting part 12 and the second connecting part 21 are connected, the first connecting part 12 extends into the second connecting part 21; that is, the size of the first connecting part 12 is smaller than the size of the second connecting part 21. The extension of the first connecting part 12 into the second connecting part 21 effectively limits the movement of the first sealing member 30 within the second sleeve 20 towards the first sleeve 10, thereby stabilizing the first sealing member 30 and improving the overall stability of the cable clamping structure A.

[0061] In this embodiment, the cable clamping structure A adopts a split structure of a first sleeve 10 and a second sleeve 20. The first sealing member 30 can be accommodated inside the second sleeve 20 and clamped by the claws 22 of the second sleeve 20. On the one hand, the first sealing member 30 is hidden inside and is not easy to age, which can make the waterproof performance more stable. On the other hand, the clamping of the first sealing member 30 by the claws 22 can make the first sealing member 30 wrap the cable 40 more stably, thereby further improving the waterproof performance.

[0062] Furthermore, it should be noted that the tail sleeve used in the existing cable clamping structure A is usually made of a rigid material. Waterproofing is achieved by clamping the cable 40 with the tail sleeve, but its waterproofing performance is easily affected by the bending angle of the cable 40. When the bending angle of the cable 40 is large, the tail sleeve is prone to deformation and cracking, significantly reducing its waterproofing performance. In this embodiment, however, because the first sealing element 30 is made of a soft material, its waterproofing performance is less affected by the bending angle of the cable 40.

[0063] In some embodiments, each of the plurality of claws 22 includes an extension 221, the extension 221 having a protrusion structure 222;

[0064] When the first sleeve 10, the second sleeve 20 and the first seal 30 are in the first state, the extension 221 extends out of the second end of the first seal 30, and the protrusion structure 222 is used to block the first seal 30 from moving along the first direction, which is the direction from the first end to the second end of the first seal 30.

[0065] In this embodiment, by providing the extension 221, the first seal 30 can be more reliably concealed inside the second sleeve 20.

[0066] In some embodiments, the protrusions 222 of the plurality of claws 22 form a clamping space adapted to the cable 40 for clamping the cable 40.

[0067] In this embodiment, the protruding structure 222 of the claw 22 can not only be used to block the first seal 30 from moving inside the second sleeve 20, but also to clamp the cable 40. This can improve the clamping effect of the cable clamping structure A on the cable 40, so that the cable clamping structure A has both clamping and waterproofing functions.

[0068] In some embodiments, the protrusion structure 222 includes serrated protrusions.

[0069] In this embodiment, the protrusion structure 222 adopts a sawtooth protrusion, which can increase the number of clamping points of the protrusion structure 222 on the cable 40 and increase the pressure of the protrusion structure 222 on the cable 40, thereby improving the clamping force on the cable 40.

[0070] In this embodiment, the protrusion structure 222 may be a serrated protrusion, a wavy protrusion, or other irregular protrusion structure 222, and there is no limitation on this.

[0071] In some embodiments, the outer wall of the first sleeve 10 has a groove 13 surrounding the first sleeve 10;

[0072] Cable clamping structure A also includes:

[0073] The second seal 50 is embedded in the groove 13.

[0074] It should be noted that the cable clamping structure A in this embodiment typically needs to be housed inside the housing 60 of the cable connector. That is, the housing 60 is also required outside the first sleeve 10 and the second sleeve 20. In this embodiment, the second sealing element 50 ensures waterproofing between the first sleeve 10 and the housing 60.

[0075] In this embodiment, the height of the second seal 50 can be slightly higher than the depth of the groove 13, so that the second seal 50 can contact the housing 60 of the cable connector, thereby preventing liquid from flowing into the first sleeve 10 through the gap between the first sleeve 10 and the housing 60.

[0076] The second seal 50 can be a sealing ring, in which case the second seal 50 can also be called a sealing ring.

[0077] In some embodiments, the groove 13 is located in the region near the first connection portion 12.

[0078] In this embodiment, the groove 13 is located in the region near the first connecting portion 12, which allows the sealing position to be further away from the inlet end of the first sleeve 10.

[0079] In some embodiments, the second sleeve 20 further includes a first cylindrical portion 23, which forms a cylindrical second chamber and is located between the second connecting portion 21 and the plurality of claws 22.

[0080] Each of the multiple jaws 22 includes a straight section 223 and a bent section 224. Each of the multiple jaws 22 is connected to the first cylindrical part 23 through the straight section 223. The straight sections 223 of the multiple jaws 22 form a cylindrical third chamber, and the bent sections 224 of the multiple jaws 22 form a conical fourth chamber.

[0081] The cylindrical body 31 includes a second cylindrical portion 311 and a conical portion 312;

[0082] The second and third chambers are used together to house the second cylindrical section 311, and the fourth chamber is used to house the conical section 312.

[0083] In this embodiment, the main body of the second sleeve 20 is cylindrical, and the tail of the second sleeve 20 is conical. The main body of the first sealing member 30 is cylindrical, and the tail of the first sealing member 30 is conical. In this way, the conical part can better clamp the cable 40.

[0084] In some embodiments, the sealing lip 32 is disposed at the connection between the second cylindrical portion 311 and the conical portion 312.

[0085] In this embodiment, the sealing lip 32 is disposed at the connection between the second cylindrical part 311 and the conical part 312, which allows the sealing part of the cable 40 to be as close as possible to the clamping part of the cable 40, thereby improving the stability of the cable 40 at the sealing part to a greater extent, which can further improve the waterproof performance.

[0086] In some embodiments, the first connecting portion 12 includes a first threaded portion, which has an external thread;

[0087] The second connecting part 21 includes a second threaded part, which has an internal thread that is adapted to the first threaded part.

[0088] In this embodiment, the first connecting part 12 and the second connecting part 21 are connected by threads. On the one hand, the threaded connection has stable and reliable connection performance, and on the other hand, the threaded connection has good waterproof performance.

[0089] This application also provides a cable connector.

[0090] like Figures 1 to 5 As shown, the cable connector includes:

[0091] Cable clamping structure A;

[0092] Housing 60, housing 60 includes a third connecting part 61;

[0093] The outer casing 70 includes a fourth connecting portion 71 and a closing portion 72.

[0094] The outer shell 60 and the outer shell sleeve 70 are connected by the third connecting part 61 and the fourth connecting part 71 respectively to form the fifth chamber 73.

[0095] When the outer casing 60, outer casing 70 and cable clamping structure A are in the second state, the cable clamping structure A is located in the fifth chamber 73, the third connecting part 61 extends into the fourth connecting part 71, and the closing part 72 presses against the multiple claws 22 of the cable clamping structure A.

[0096] In this embodiment, both the outer shell 60 and the outer shell sleeve 70 can be made of a material that is not easily deformed (or a hard material) so that the cable connector of this embodiment has a certain impact resistance.

[0097] Both the third connecting part 61 and the fourth connecting part 71 can adopt a threaded structure. That is to say, the outer sleeve 70 can be screwed onto the outer sleeve 60 by the thread. Furthermore, the clamping force of the outer sleeve 70 after it is screwed on can firmly press the claw 22 of the second sleeve 20, so that the clamping force of the claw 22 firmly presses the first sealing element 30, making the waterproof of the cable connector more reliable.

[0098] It should be noted that in this embodiment of the application, when the closing part 72 of the outer casing 70 can press the claw 22, the clamping force applied by the claw 22 to the first sealing member 30 can be relatively small, so as to be able to gently clamp the first sealing member 30.

[0099] The cable clamping structure A in this application embodiment adopts any one of the cable clamping structures in the above-mentioned cable clamping structure embodiments, and can achieve the same beneficial effect. To avoid repetition, it will not be described in detail.

[0100] In addition, the cable connector in this application embodiment also includes components such as button sleeve 81, button 82, locking spring 83, base 84, socket 85, and third seal 86, all of which can be implemented using existing technologies and will not be described in detail.

[0101] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A cable clamping structure for a cable connector, characterized by, The cable clamping structure comprises: a first sleeve having a first cavity for a cable to pass through, the first sleeve comprising a first connecting portion; a second sleeve comprising a second connecting portion and a plurality of clamping claws arranged along a circumference of the second sleeve; a first sealing member comprising a cylindrical body and a sealing lip arranged on an inner wall of the cylindrical body, the sealing lip being used to wrap the cable; wherein, when the first sleeve, the second sleeve and the first sealing member are in a first state, the first sealing member is located in the second sleeve, the first connecting portion extends into the second connecting portion, the first connecting portion abuts against a first end of the first sealing member, and the plurality of clamping claws clamps the first sealing member.

2. The cable clamp structure of claim 1, wherein, Each clamping claw of the plurality of clamping claws comprises an extension portion having a protruding structure; when the first sleeve, the second sleeve and the first sealing member are in the first state, the extension portion extends out of a second end of the first sealing member, and the protruding structure is used to block the first sealing member from moving in a first direction, the first direction being a direction from the first end to the second end of the first sealing member.

3. The cable clamp structure of claim 2, wherein, The protruding structure of the plurality of clamping claws encloses a clamping space adapted to the cable for clamping the cable.

4. The cable clamp structure of claim 3, wherein The protruding structure comprises a zigzag protrusion.

5. The cable clamp structure according to any one of claims 1 to 4, characterized by, An outer wall of the first sleeve has a groove surrounding the first sleeve; The cable clamping structure further comprises: a second sealing member embedded in the groove.

6. The cable clamp structure of claim 5, wherein, The groove is located in a region close to the first connecting portion.

7. The cable clamp structure according to any one of claims 1 to 4, characterized by, The second sleeve further comprises a first cylindrical portion enclosing a cylindrical second cavity, the first cylindrical portion being located between the second connecting portion and the plurality of clamping claws; Each clamping claw of the plurality of clamping claws comprises a straight section and a bent section, each clamping claw of the plurality of clamping claws being connected to the first cylindrical portion through the straight section, the straight sections of the plurality of clamping claws enclosing a cylindrical third cavity, and the bent sections of the plurality of clamping claws enclosing a tapered fourth cavity; The cylindrical body comprises a second cylindrical portion and a tapered portion; wherein, the second cavity and the third cavity are used together to accommodate the second cylindrical portion, and the fourth cavity is used to accommodate the tapered portion.

8. The cable clamp structure of claim 7, wherein, The sealing lip is arranged at a connection between the second cylindrical portion and the tapered portion.

9. The cable clamp structure of any one of claims 1 to 4, wherein, The first connecting portion comprises a first threaded portion having external threads; The second connecting portion comprises a second threaded portion having internal threads adapted to the first threaded portion.

10. A cable connector, characterized by, The cable clamping structure comprises: the cable clamping structure according to any one of claims 1 to 9; a housing comprising a third connecting portion; a housing sleeve comprising a fourth connecting portion and a necked portion; wherein, the housing and the housing sleeve are connected through the third connecting portion and the fourth connecting portion respectively to jointly form a fifth cavity; When the housing, the housing cover and the cable clamping structure are in the second state, the cable clamping structure is located in the fifth chamber, the third connecting portion extends into the fourth connecting portion, and the closing portion compresses the plurality of clamping claws of the cable clamping structure.

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