CN218867490U

CN218867490U - Waterproof connector for cable

Info

Publication number: CN218867490U
Application number: CN202223365387.XU
Authority: CN
Inventors: 郭浪; 刘成; 吴伟军
Original assignee: Calf Electric Suzhou Co ltd
Current assignee: Calf Electric Suzhou Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-04-14
Anticipated expiration: 2032-12-15

Abstract

The utility model provides a waterproof connector for cable, which comprises a plug and a socket which are mutually matched, wherein the tail ends of the plug and the socket are respectively connected with the cable; the plug and the socket each include a connector body, a metal terminal, a support fastener, a seal, and a nut; the supporting fastener is arranged between the sealing element and the connector body, so that on one hand, the supporting fastener can occupy a part of the length, the length of the sealing element can be shortened, the production cost is reduced, and meanwhile, the installation of the sealing element is simpler; on the other hand can improve the support performance, gives the better support of sealing member, avoids the sealing member to warp or shift in long-term extrusion, prolongs the life of sealing member, guarantees the waterproof sealing effect of sealing member.

Description

Waterproof connector for cable

Technical Field

The utility model relates to a manufacturing of connector for the cable especially relates to a waterproof connector for cable.

Background

Connectors, also known in the domestic literature as plug connectors, plugs and sockets, generally refer to electrical connectors, i.e. devices connecting two active devices, for transmitting current or signals, which are indispensable components in electronic equipment. The cable connector comprises a plug and a socket which are matched with each other, metal terminals are respectively arranged in the plug and the socket, the tail ends of the plug and the socket are respectively connected with a cable, a sealing element and a nut are sleeved outside the cable, the nut is screwed to be matched and locked with threads at the tail end of the plug or the socket, and the sealing element is locked and sealed between the nut and the cable while screwing, so that the cable is connected in a sealing manner; the cables of the plug and the socket are respectively connected with the metal terminals in the plug and the socket, and when the plug is plugged with the socket, the metal terminals are also plugged with each other to realize electric connection.

For the cable connector, which is generally used for current transmission connection in a high-current working environment, the safety is one of the most important considerations, and one of the important factors affecting the safety of the connector is the sealing performance of the structure. In the conventional cable connector, since the sealing and water-proof between the cable and the nut in the connector body are all dependent on the sealing member, in order to ensure the sealing between the cable and the nut, the sealing member must be long enough to fill the gap between the nut and the cable and the metal terminal. However, the sealing element with the above structure is long, the material of the sealing element is soft, the supporting performance is weak, the situation of loosening and the like may occur after the sealing element is repeatedly screwed, the replacement frequency of the sealing element is high, and the production cost is high, so that a cable connector with a smaller sealing element, a lower cost and a better internal supporting performance is required.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a waterproof connector for cables.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a waterproof connector for cables comprises a plug and a socket which are matched with each other, wherein the tail ends of the plug and the socket are respectively connected with a cable; the plug and the socket each include a connector body, a metal terminal, a support fastener, a seal, and a nut; the metal terminals are arranged in the connector body, the plug is matched and connected with the connector body of the socket, and the plug is matched and connected with the metal terminals of the socket;

the supporting fastener is sleeved on the periphery of the cable and abutted against the tail end of the connector body, the sealing element is sleeved on the periphery of the cable and abutted against the tail end of the supporting fastener, the nut is sleeved on the periphery of the cable and screwed and matched with the thread at the tail end of the connector body, and the nut wraps and extrudes the sealing element and the supporting fastener.

Preferably, the side wall of the supporting and fastening member is provided with an opening along the axial direction, namely, the supporting and fastening member is a cylindrical tubular structure with an unclosed side wall.

Preferably, the inner diameter of the support fastener is equal to or less than the diameter of the cable around which the support fastener is tightened.

Preferably, the outer diameter of the support fastener is less than or equal to the inner diameter of the nut.

Preferably, the leading end of the seal member abuts against the supporting fastener and the trailing end of the seal member is remote from the supporting fastener, the trailing end outer diameter of the seal member being greater than the leading end outer diameter.

Preferably, the seal is tightened around the periphery of the cable.

Preferably, a sealing ring is arranged at the screwed joint of the nut and the connector body.

Preferably, a sealing ring is arranged at the joint where the connector body of the plug and the connector body of the socket are plugged with each other.

Preferably, the connector body of the plug and the connector body of the socket are inserted into each other and locked by a buckle.

Preferably, the metal terminals of the plug and the metal terminals of the socket are plugged with each other.

Compared with the prior art, the beneficial effects of the utility model are that:

the supporting fastener is additionally arranged in the traditional cable connector, so that on one hand, the sealing member can be supported, and the situations of looseness, reduction in sealing performance and the like caused by long-time use deformation or displacement of the sealing member are avoided; on the other hand, the length of the sealing element can be effectively shortened, and the production cost is reduced. Furthermore, the utility model discloses simple structure, the installation is quick, and sealed water-proof effects is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view showing an overall structure of a waterproof connector for a cable;

fig. 2 is an exploded view of the waterproof connector for cables.

Detailed Description

In order to further understand the objects, structures, features, and functions of the present invention, the following embodiments are described in detail.

In order to achieve the desired waterproof sealing effect, the conventional cable connector generally has a long sealing member, which can fill the gap between the nut at the tail end of the connector and the cable. But the sealing element is made of softer material and has poor supporting capability, and after the sealing element is used for a period of time, the sealing element is easy to deform under the repeated extrusion deformation for a long time, so that the sealing and waterproof effects are weakened; in addition, the sealing element is too long and is frequently replaced, the connector is high in cost, the sealing element is tightly hooped on the cable, and the too long sealing element is subjected to large resistance during installation, so that the installation difficulty is increased. The utility model discloses a waterproof connector for cable is exactly in order to solve above-mentioned problem.

Referring to fig. 1 and fig. 2, the waterproof connector for cable according to the present invention includes a plug 100 and a socket 200, which are engaged with each other, and the tail ends of the plug 100 and the socket 200 are respectively connected to a cable 300; the plug 100 includes a connector body 1, a metal terminal 2, a support fastener 3, a seal 4, and a nut 5; the socket 200 includes a connector body 1', a metal terminal 2', a support fastener 3', a sealing member 4', and a nut 5'; the metal terminals 2 or 2 'are installed inside the connector body 1 or 1', the plug 100 is connected with the connector body 1 or 1 'of the socket 200 in a matching manner, and the plug 100 is connected with the metal terminals 2 and 2' of the socket 200 in a matching manner.

The supporting fastener 3 is sleeved on the periphery of the cable 300 and abuts against the tail end of the connector body 1, the sealing element 4 is sleeved on the periphery of the cable 300 and abuts against the tail end of the supporting fastener 3, the nut 5 is sleeved on the periphery of the cable 300 and is in screwed fit with the thread at the tail end of the connector body 1, and the nut 5 wraps and extrudes the sealing element 4 and the supporting fastener 3.

The utility model discloses a waterproof connector for cable, its seal structure changes into supporting fastener 3 and sealing member 4 and cooperatees, wherein supporting fastener 3 supports and leans on the tail end of connector body 1, and sealing member 4 is located supporting fastener 3 after and supports and lean on supporting fastener 3, therefore supporting fastener 3's existence, on the one hand replaced some length sealing member 4 to fill between cable 300 and nut 5, make the length of sealing member 4 subtract short, reduced manufacturing cost; on the other hand, the supporting performance of the supporting fastener 3 is excellent, the sealing element 4 can be supported, the sealing element 4 can be effectively prevented from deforming under the dual functions of length shortening and good supporting, the service life of the sealing element 4 is prolonged, and the sealing and waterproof effects of the sealing element 4 are guaranteed.

The utility model discloses the mechanism improves, has increased supporting fastener 3, has shortened sealing member 4, and simple structure does not need extra complicated production processes, and sealing member 4's length is shortening the back, and its installation is also simpler.

In a preferred embodiment, the side wall of the supporting fastener 3 is provided with an opening along the axial direction, i.e. the supporting fastener 3 is a cylindrical tubular structure with an unclosed side wall; this structure allows the support fastener 3 to have a certain deformation capability in the radial direction, and to expand or contract within a certain range, so that it can be fastened to the circumference of the cable 300 while accommodating cables 300 of different thicknesses, and is also easier to install. In addition, in the process of screwing the nut 5, the periphery of the supporting fastener 3 is further pressed to be radially contracted, and the cable 300 is further fastened on the periphery, so that the sealing performance is enhanced, and the supporting effect is enhanced.

Further, the inner diameter of the supporting fastener 3 is equal to or smaller than the diameter of the cable 300, the supporting fastener 3 is tightly hooped on the periphery of the cable 300, tight connection between the supporting fastener 3 and the cable 300 is guaranteed, and the supporting effect is enhanced.

Further, the outer diameter of the support fastener 3 is smaller than or equal to the inner diameter of the nut 5, and when the diameter of the cable 300 is larger than the inner diameter of the support fastener 3, the support fastener 3 is mounted on the circumference of the cable 300, and the diameter thereof is slightly expanded, and after being covered and wrapped by the nut 5, the support fastener 3 is tightened during the screwing of the nut 5 into engagement with the connector body 1.

In a preferred embodiment, the head end of the sealing element 4 abuts against the supporting and fastening element 3, the tail end of the sealing element 4 is far away from the supporting and fastening element 3, and the tail end outer diameter of the sealing element 4 is larger than the head end outer diameter; the sealing element 4 is covered and wrapped by the nut 5, in the process that the nut 5 is screwed to be matched with the connector body 1, the sealing element 4 is extruded forwards from the tail end by the nut 5, meanwhile, the sealing element is radially extruded inwards, and the conical or circular truncated cone-shaped structure can ensure that the sealing element 4 achieves the best sealing and waterproof effects after being extruded.

Further, the sealing member 4 is tightly clamped to the periphery of the cable 300, ensuring a relatively fixed and sealing effect between the sealing member 4 and the cable 300, and further strengthening after the nut 5 is tightened.

In a preferred embodiment, a sealing ring is arranged at the screwing position of the nut and the connector body, a sealing ring 61 is arranged at the connecting position of the nut 5 of the plug 100 and the connector body 1, a sealing ring 62 is arranged at the connecting position of the nut 5 'of the socket 200 and the connector body 1', the tail end of the nut is provided with threads and matched with the nut, and the sealing ring can be arranged above the threads and positioned at the connecting position of the nut and the connector.

In a preferred embodiment, a sealing ring 63 is disposed at a joint where the connector body 1 of the plug 100 and the connector body 1 of the socket 200 are plugged with each other, so as to enhance a waterproof sealing effect at the joint of the plug 100 and the socket 200.

In a preferred embodiment, the connector body 1 of the plug 100 and the connector body 1 of the receptacle 200 are plugged with each other and locked by a snap, and further, the metal terminals 2 of the plug 100 and the metal terminals 2 of the receptacle 200 are plugged with each other.

To sum up, the waterproof connector for the cable of the utility model is provided with the supporting fastener between the sealing element and the connector body, on one hand, the waterproof connector can occupy a part of the length, so that the length of the sealing element can be shortened, the production cost is reduced, and meanwhile, the installation of the sealing element is simpler; on the other hand can improve the support performance, gives the better support of sealing member, avoids the sealing member to warp or shift in long-term extrusion, prolongs the life of sealing member, guarantees the sealed water-proof effects of sealing member.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention.

The present invention has been described in connection with the above embodiments, which are only examples of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the invention is not to be limited by the spirit and scope of the appended claims.

Claims

1. A waterproof connector for cables comprises a plug and a socket which are matched with each other, wherein the tail ends of the plug and the socket are respectively connected with a cable; the method is characterized in that: the plug and the socket each include a connector body, a metal terminal, a support fastener, a seal, and a nut; the metal terminals are arranged in the connector body, the plug is matched and connected with the connector body of the socket, and the plug is matched and connected with the metal terminals of the socket;

the supporting fastener is sleeved on the periphery of the cable and abutted against the tail end of the connector body, the sealing element is sleeved on the periphery of the cable and abutted against the tail end of the supporting fastener, the nut is sleeved on the periphery of the cable and screwed and matched with threads at the tail end of the connector body, and the nut wraps and extrudes the sealing element and the supporting fastener.

2. The waterproof connector for cables according to claim 1, characterized in that: the side wall of the supporting and fastening piece is provided with an opening along the axial direction, namely, the supporting and fastening piece is a cylindrical tubular structure with an unclosed side wall.

3. The waterproof connector for cables according to claim 2, characterized in that: the inner diameter of the supporting fastener is equal to or smaller than the diameter of the cable, and the supporting fastener is tightly hooped on the periphery of the cable.

4. The waterproof connector for cables according to claim 2, characterized in that: the outer diameter of the support fastener is less than or equal to the inner diameter of the nut.

5. The waterproof connector for cables according to claim 1, characterized in that: the head end of the sealing element abuts against the supporting and fastening element, the tail end of the sealing element is far away from the supporting and fastening element, and the outer diameter of the tail end of the sealing element is larger than that of the head end.

6. The waterproof connector for cables according to claim 5, characterized in that: the seal is tightened around the periphery of the cable.

7. The waterproof connector for cables according to claim 1, characterized in that: and a sealing ring is arranged at the screwed joint of the nut and the connector body.

8. The waterproof connector for cables according to claim 1, characterized in that: and a sealing ring is arranged at the joint where the connector body of the plug and the connector body of the socket are mutually spliced.

9. The waterproof connector for cables according to claim 1, characterized in that: the connector body of the plug and the connector body of the socket are mutually inserted and locked by utilizing a buckle.

10. The waterproof connector for cables according to claim 1, characterized in that: and the metal terminals of the plug and the metal terminals of the socket are mutually inserted.