CN215267593U

CN215267593U - Shielded cable joint

Info

Publication number: CN215267593U
Application number: CN202121070688.2U
Authority: CN
Inventors: 洪群波; 黄章雄; 袁杰琪
Original assignee: Realinkage Co ltd
Current assignee: Realinkage Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-21
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a shielded cable joint, including the joint body, with the hose nipple of joint body screw thread locking and suit in the clamping sleeve in joint body and the hose nipple, hose nipple is used for locking the hose, clamping sleeve have be used for inserting the shrink section in the hose nipple and with the section of splining of the terminal surface axial stop of joint body, the section of splining of clamping sleeve through groove, post structure with the joint body spline cooperation, be equipped with the shrink groove on the inner wall of the shrink section of clamping sleeve, the internal wall of hose nipple is formed with and is used for radial extrusion the shrink section so that the shrink section radially extrudees the extrusion portion of cable, the shrink section of clamping sleeve supports and presses on the terminal surface of extrusion portion; the inner wall of the connector body, which is far away from one end of the hose connector, is provided with an annular cavity, the annular cavity is provided with a triangular spring, and the triangular spring is provided with a cable channel. The shielded cable joint has a good electromagnetic shielding effect.

Description

Shielded cable joint

Technical Field

The utility model relates to a cable joint field especially relates to a shielded cable connects.

Background

When the cable transmits signals, the cable needs to be shielded to ensure the transmission quality of the signals, so that the cable connector needs to have a shielding function. The shielded cable is used for absorbing external interference signals through a metal shielding layer outside the cable and preventing the interference on control signals inside the cable. Or the interference generated by the control signal in the cable is absorbed by the metal shielding layer outside the cable, so that the interference to the outside is prevented.

The contact area of the shielding structure of the existing shielding cable joint and the shielding layer of the cable is small, so that the electromagnetic shielding effect is poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a shielded cable joint has better electromagnetic shielding effect.

The purpose of the utility model is realized by adopting the following technical scheme:

a shielded cable joint comprises a joint body, a hose joint locked with the joint body through threads, and a clamping sleeve sleeved in the joint body and the hose joint, wherein the hose joint is used for locking a hose, the clamping sleeve is provided with a contraction section inserted into the hose joint and a rotation stopping section axially stopping the end face of the joint body, the rotation stopping section of the clamping sleeve is in rotation stopping fit with the joint body through a groove and a column structure, the inner wall of the contraction section of the clamping sleeve is provided with a contraction groove, the inner wall surface of the hose joint is provided with an extrusion part for radially extruding the contraction section to enable the contraction section to radially extrude a cable, and the contraction section of the clamping sleeve is pressed against the end face of the extrusion part; the inner wall of the connector body, which is far away from one end of the hose connector, is provided with an annular cavity, the annular cavity is provided with a triangular spring, and the triangular spring is provided with a cable channel.

Furthermore, one side of the triangular spring is attached to the inner wall of the annular cavity, and the corresponding vertex angle of one side points to the circle center of the annular cavity.

Further, the groove and column structure comprises a protrusion arranged on the outer wall of the rotation stopping section of the clamping sleeve and a groove arranged on the inner wall of the joint body.

Furthermore, the extrusion portion is an extrusion flange extending along the inner wall of the hose connector in the radial direction, a conical surface with a flaring shape from bottom to top is formed at the upper end face of the extrusion flange, and the contraction groove is a conical groove with a conical cross section.

Furthermore, the shielded cable joint further comprises a bushing, the bushing is sleeved in the contraction section of the clamping sleeve, and the bushing is provided with a limiting part axially blocked with the end face of the clamping sleeve.

Further, the clamping sleeve is made of nylon.

Further, the inner cavity of the upper end of the hose connector is sleeved with a waterproof piece, and the inner wall of the waterproof piece is tightly attached to the outer wall of the hose.

Furthermore, the shielded cable joint also comprises a clamping piece, the lower end of the hose joint is provided with a clamping groove, the clamping piece is provided with a plurality of clamping jaws, and the side, close to the central axis of the clamping piece, of each clamping jaw is provided with a boss; the clamping piece is used for clamping the hose connector to limit the axial movement of the hose; the chucking spare joint in during hose nipple, the jack catch card in the joint inslot, the boss card is gone into in the trough of hose.

Furthermore, a wrench position is arranged outside the joint body, a first threaded portion and a second threaded portion are arranged on the wrench position, and the hose joint is locked with the second threaded portion in a threaded mode.

Furthermore, a first sealing ring is arranged at the joint of the wrench position and the first thread portion, and a second sealing ring is arranged at the joint of the second thread portion and the wrench position.

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

the utility model discloses in, realize shielding function through the triangular spring who fixes in the annular chamber, because the triangular spring contacts the area with the cable shield layer and big and the contact is even, has excellent electromagnetic shield effect. In addition, when the cable stretches into the triangular spring, the triangular spring can apply pressure to the cable, and the effect of further locking and fixing the cable can be achieved.

Drawings

Fig. 1 is a schematic perspective view of a shielded cable connector according to the present invention;

fig. 2 is a cross-sectional view of a shielded cable connector according to the present invention;

in the figure: 1. a connector body; 11. a spanner position; 12. a first threaded portion; 13. a second threaded portion; 2. a hose connector; 21. a pressing section; 22. a conical surface; 3. a clamping sleeve; 4. a bushing; 5. a waterproof member; 6. a retainer; 7. a first seal ring; 8. a second seal ring; 9. a triangular spring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1-2, for the utility model provides a shielded cable joint, including joint body 1, with the hose nipple 2 and the suit of joint body 1 screw thread locking are in the tight tube coupling 3 in joint body 1 and the hose nipple 2, tight tube coupling 2 is used for locking the hose, tight tube coupling 3 has the shrink section that is used for inserting in the hose nipple 2 and the spline section of stopping with the terminal surface axial of joint body 1, the spline section of tight tube coupling 3 through groove, post structure with the joint body 1 spline cooperation, be equipped with the shrink groove on the inner wall of the shrink section of tight tube coupling 3, the internal face of hose nipple 2 is formed with and is used for radial extrusion the shrink section so that the shrink section radially extrudees the extrusion portion 21 of cable, the shrink section of tight tube coupling 3 supports and presses on the terminal surface of extrusion portion 21; the inner wall of the end, far away from the hose connector 2, of the connector body 1 is provided with an annular cavity, a triangular spring 9 is installed in the annular cavity, and the triangular spring 9 is provided with a cable channel.

The utility model discloses a working method is: firstly connect body 1 and hose nipple 2 threaded connection, then insert and lock the hose from the one end of hose nipple 2, the hose of this embodiment is preferred the bellows, the cable is packed into the hose and is stretched into in the clamp sleeve 3, then in the downward rotating adapter body 1, the clamp sleeve 3 of joint body 1 extrusion downwards, because the shrink section of clamp sleeve 3 supports and presses on extrusion portion 21, make the shrink groove on the clamp sleeve 3 produce radial deformation, thereby radial extrusion clamp sleeve 3 inside cable, finally realize cable locking. When the cable extends into the triangular spring 9, the shielding layer of the cable is in contact with the triangular spring 9, so that the electromagnetic shielding effect is realized.

The utility model discloses in, through connecting body 1 and the 2 screw thread locking of hose nipple, and the shrink section of the binding clasp 3 in the joint body 1 and the extrusion portion 21 in the hose nipple 2 cooperate and realize locking cable effect, through the 2 locking hoses of hose nipple simultaneously, make this shielded cable joint connecting hose in the locking cable, improve this shielded cable joint's reliability and suitability. The triangular spring 9 fixed in the annular cavity realizes a shielding function, and has excellent electromagnetic shielding effect because the triangular spring 9 is large in contact area and uniform in contact with the cable shielding layer. In addition, when the cable stretches into the triangular spring 9, the triangular spring 9 can apply pressure to the cable, and the effect of further locking and fixing the cable can be achieved.

Specifically, one side of the triangular spring 9 is attached to the inner wall of the annular cavity, and the corresponding vertex angle of one side points to the center of the annular cavity.

Preferably, the groove and column structure comprises a protrusion arranged on the outer wall of the rotation stopping section of the clamping sleeve 3 and a groove arranged on the inner wall of the joint body 1. In another embodiment, the groove and column structure may further include a groove disposed on an outer wall of the rotation stop section of the clamping sleeve 3 and a protrusion disposed on an inner wall of the joint body 1.

Preferably, the extrusion portion 21 is an extrusion flange extending along the inner wall of the hose connector 2 in the radial direction, a conical surface 22 flaring from bottom to top is formed on the upper end surface of the extrusion flange, and the contraction groove is a conical groove with a conical cross section. The locking range can be adjusted by matching the tapered groove of the clamping sleeve 3 with the tapered surface 22 of the extrusion part 21, so that the cable locking device can be suitable for locking cables with different dimensions.

Preferably, the shielded cable connector further comprises a bushing 4, the bushing 4 is sleeved in the contraction section of the clamping sleeve 3, and the bushing 4 has a limiting part axially blocked with the end face of the clamping sleeve 3. Through setting up bush 4, avoid the tight jacket 3 deformation to cause the damage to the cable.

Specifically, the clamping sleeve 3 is made of nylon. The nylon material has excellent insulating property and excellent aging resistance.

Preferably, the inner cavity of the upper end of the hose connector 2 is sleeved with a waterproof piece 5, and the inner wall of the waterproof piece 5 is tightly attached to the outer wall of the hose. By providing the waterproof member 5, the waterproof function of the locking cable joint is enhanced.

Preferably, the shielded cable joint further comprises a clamping piece 6, a clamping groove is formed in the lower end of the hose joint 2, a plurality of clamping jaws are arranged on the clamping piece 6, and a boss is arranged on the side, close to the central axis of the clamping piece 6, of each clamping jaw; the clamping piece 6 is used for clamping the hose connector 2 to limit the axial movement of the hose; 6 joint of chucking spare in during hose nipple 2, the jack catch card in the joint inslot, the boss card is gone into in the trough of hose. Through setting up chucking spare 6, can stably lock the hose on hose nipple 2, avoid the hose to drop.

Preferably, a wrench position 11 is arranged outside the connector body 1, a first threaded portion 12 and a second threaded portion 13 are arranged on the wrench position 11, and the hose connector 2 is in threaded locking with the second threaded portion 13.

Specifically, a first sealing ring 7 is arranged at the joint of the wrench position 11 and the first thread portion 12, and a second sealing ring 8 is arranged at the joint of the second thread portion 13 and the wrench position 11.

More specifically, the first seal ring 7 and the second seal ring 8 are both O-ring seals.

In order to ensure the sealing effect of the connection of the shielded cable connector and equipment, a wrench position 11 is arranged outside the connector body 1, so that the connector body 1 is conveniently rotated, the connector body 1 is locked at a required thread position or passes through a hole position by the outside and is locked by a nut, an O-shaped sealing ring is deformed, and a gap between the connector and the position is filled to realize the sealing effect of the connector.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A shielded cable joint is characterized by comprising a joint body (1), a hose joint (2) locked with the joint body (1) through threads, and a clamping sleeve (3) sleeved in the joint body (1) and the hose joint (2), the hose connector (2) is used for locking a hose, the clamping sleeve (3) is provided with a contraction section which is inserted into the hose connector (2) and a rotation stopping section which is axially stopped with the end surface of the connector body (1), the rotation stopping section of the clamping sleeve (3) is matched with the joint body (1) in a rotation stopping way through a groove and column structure, a contraction groove is arranged on the inner wall of the contraction section of the clamping sleeve (3), an extrusion part (21) for radially extruding the contraction section to enable the contraction section to radially extrude the cable is formed on the inner wall surface of the hose joint (2), the contraction section of the clamping sleeve (3) is pressed against the end surface of the extrusion part (21); the inner wall of the end, far away from the hose connector (2), of the connector body (1) is provided with an annular cavity, a triangular spring (9) is installed in the annular cavity, and the triangular spring (9) is provided with a cable channel.

2. A shielded cable joint according to claim 1, wherein one side of the triangular spring (9) is attached to the inner wall of the annular cavity, and the corresponding vertex angle of one side points to the center of the annular cavity.

3. A shielded cable joint according to claim 1, wherein the groove-and-post structure comprises a protrusion provided on an outer wall of the rotation stop section of the clamping sleeve (3) and a groove provided on an inner wall of the joint body (1).

4. The shielded cable connector according to claim 1, wherein the pressing portion (21) is a pressing flange extending radially along an inner wall of the hose connector (2), an upper end surface of the pressing flange is formed with a tapered surface (22) flaring from bottom to top, and the constricted groove is a tapered groove having a tapered cross section.

5. The shielded cable joint of claim 1, further comprising a bushing (4), wherein the bushing (4) is sleeved in the contraction section of the clamping sleeve (3), and the bushing (4) has a limiting part axially blocked with the end face of the clamping sleeve (3).

6. A shielded cable joint according to claim 1, wherein the clamping sheath (3) is of nylon material.

7. A shielded cable joint according to claim 1, wherein the upper end cavity of the hose joint (2) is sleeved with a waterproof member (5), and the inner wall of the waterproof member (5) is tightly attached to the outer wall of the hose.

8. The shielded cable joint of claim 1, further comprising a clamping member (6), wherein the lower end of the hose joint (2) is provided with a clamping groove, the clamping member (6) is provided with a plurality of clamping jaws, and the clamping jaws are provided with bosses close to the central axis side of the clamping member (6); the clamping piece (6) is used for clamping the hose connector (2) so as to limit the axial movement of the hose; chucking spare (6) joint in during hose nipple (2), the jack catch card in the joint inslot, the boss card is gone into in the trough of hose.

9. A shielded cable joint according to claim 1, wherein the joint body (1) is provided with a wrench position (11) on the outside, the wrench position (11) is provided with a first threaded portion (12) and a second threaded portion (13), and the hose joint (2) is screwed and locked with the second threaded portion (13).

10. A shielded cable joint according to claim 9, wherein a first sealing ring (7) is provided at the junction of the wrench location (11) and the first threaded portion (12), and a second sealing ring (8) is provided at the junction of the second threaded portion (13) and the wrench location (11).