CN211830168U

CN211830168U - Dustproof and waterproof connector for connecting cable

Info

Publication number: CN211830168U
Application number: CN202020141921.0U
Authority: CN
Inventors: 黄桂领; 范明勇; 王超; 王洪超
Original assignee: Zhejiang Yuantong Wire and Cable Manufacturing Co Ltd
Current assignee: Zhejiang Yuantong Wire and Cable Manufacturing Co Ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-10-30
Anticipated expiration: 2030-01-22

Abstract

The utility model relates to a cable connecting piece field discloses a dustproof and waterproof joint for connecting cable, including the connecting pipe that is used for connecting cable and the sealing sleeve who is connected with the connecting pipe screw thread, the connecting pipe includes the flange ring in middle part and the assembly sleeve who is located flange ring both sides, define respectively as first assembly sleeve and second assembly sleeve, first assembly sleeve and second assembly sleeve structure are the same, equal threaded connection has the sealing sleeve on first assembly sleeve and the second assembly sleeve, first assembly sleeve includes the tubulose fixed segment of connecting on the flange ring and sets up the elastic pressing piece that keeps away from flange ring one end in the fixed segment, the cable is connected in the connecting pipe; the first assembling pipe is in threaded connection with the fixed section, and meanwhile the elastic pressing sheet is pressed on the protective skin outside the cable. The connector has the functions of dust prevention and water prevention, and can not damage cable protection skins.

Description

Dustproof and waterproof connector for connecting cable

Technical Field

The utility model relates to a cable connecting piece field has especially related to a dustproof and waterproof joint for connecting cable.

Background

Chinese patent CN201521098529.8 discloses a waterproof joint, which comprises a joint body, a screw cap, a fastening ring and a sealing ring, wherein the joint body is cylindrical and is provided with a first thread section, a second thread section and a blocking flange positioned between the first thread section and the second thread section, the second thread section is provided with a locking part opposite to the other end of the blocking flange, the fastening ring is connected with the first thread section, the first thread section is a circular sleeve provided with external threads, one end of the first thread section is in threaded connection with the inside of the joint body, the other end of the first thread section extends out of the joint body, the inner wall of the joint body is provided with internal threads matched with the first thread section, the outer wall of the first thread section is axially provided with a plurality of positioning holes, the blocking flange is provided with a fixing hole which is coincided with the positioning holes when the first; the heel part to the end part of the locking part are folded towards the axis direction; the inner wall of the sealing ring is coaxially provided with a plurality of annular bulges.

Wherein the shortcoming of this patent lies in that the seal cover is inconvenient with locking portion installation, the seal cover appears rocking easily and shortcoming such as position inaccuracy, thereby the fold can appear in this type of seal cover in the in-service use leads to sealed shortcoming such as unreliable, and rely on the screw thread direct compression in the patent to have following defect on the cable, the fixed cover direct action of at first outside easily causes the injury to locking portion on locking portion, the second is because whole adoption internal thread direct action is great in the locking force variation range of exerting on locking portion, cause the card phenomenon of dying easily, fixed lock sleeve that can not be stable and stable provide required locking force.

SUMMERY OF THE UTILITY MODEL

The utility model discloses complicated, the sealed effect poor to the structure that prior art exists connects inseparable shortcoming inadequately, provides a dustproof and waterproof joint for connecting cable.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a dustproof and waterproof joint for connecting cables comprises a connecting pipe for connecting cables and a sealing sleeve in threaded connection with the connecting pipe, wherein the connecting pipe comprises a flange ring in the middle and assembling sleeves positioned on two sides of the flange ring, the assembling sleeves are respectively defined as a first assembling sleeve and a second assembling sleeve, the first assembling sleeve and the second assembling sleeve are identical in structure, the sealing sleeves are in threaded connection with the first assembling sleeve and the second assembling sleeve, the first assembling sleeve comprises a tubular fixing section connected to the flange ring and an elastic pressing sheet arranged at one end, far away from the flange ring, of the fixing section, and a cable is connected in the connecting pipe; the first assembling pipe is in threaded connection with the fixed section, and meanwhile the elastic pressing sheet is pressed on the protective skin outside the cable.

As preferred, the elasticity preforming distributes on the terminal surface that the flange ring was kept away from to the canned paragraph along the circumferencial direction, still includes the rubber sleeve, and the rubber sleeve cover is established on the elasticity preforming, and the socket that is used for pegging graft elasticity preforming is offered to the outer end of rubber sleeve, and the elasticity preforming cladding is in the rubber sleeve.

Preferably, the inner annular surface of the rubber sleeve is integrally formed with a gasket.

Preferably, the outer side surface of the fixed section is provided with an external thread, the sealing sleeve comprises an assembling section in threaded connection with the fixed section and a clamping cavity used for acting on the elastic pressing sheet, one end of the sealing sleeve, which is far away from the fixed section, is provided with a connector used for penetrating a cable, the diameter of the cross section of the clamping cavity is gradually reduced towards the direction of the connector, the maximum diameter of the cross section of the clamping cavity is larger than or equal to the maximum diameter of the elastic pressing sheet in an annular mode, and the minimum diameter of the cross section of the clamping cavity is smaller than the maximum diameter of the elastic pressing sheet in.

Preferably, the left side face and the right side face of the flange ring are both provided with a sealing gasket, the sealing gasket comprises an outer side pressing gasket and a fixing gasket fixed on the side face of the flange ring, and a buffer cavity is formed between the fixing gasket and the pressing gasket.

Preferably, the middle part of the flange ring is provided with a copper seat, the left side surface and the right side surface of the copper seat are respectively provided with a connector for connecting with the end part of the cable, the side surface of the connector is provided with a connector for inserting the end head of the cable and a compression bolt for fixing the end head of the cable, and the compression bolt is fixed on the connector; the connecting pipe and the sealing sleeve are made of plastics.

Preferably, the connection pipe is a hollow pipe, and the cable is connected inside the connection pipe.

Preferably, the middle part of the flange ring is provided with a connection part for connecting the end of the cable.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect: the utility model discloses the seal cover adopts the mode of cup jointing to assemble the elasticity preforming, thereby the position relation of seal cover has been guaranteed, guarantee that the fold phenomenon can not appear in the seal cover, and convenient assembling is reliable, the elasticity preforming is not direct and cable and seal tube direct contact simultaneously, also protected the elasticity preforming when having protected the cable, prevent that the elasticity preforming can not appear because rigid contact appears damaging the phenomenon, the mode that adopts card chamber and elasticity preforming to support the pressure simultaneously has lengthened the stroke of being connected on the one hand, thereby safe length has been increased, secondly the card chamber can provide reasonable packing force, card dead phenomenon can not appear between messenger's elasticity preforming and the seal tube.

Drawings

Fig. 1 is a schematic view of the overall structure of the apparatus.

Fig. 2 is a schematic view of the structure of the connection pipe, in which the rubber boot is removed from one end.

Fig. 3 is a front view of fig. 1.

Fig. 4 is a sectional view of fig. 3.

FIG. 5 is a schematic view of the internal structure of embodiment 2.

The names of the parts indicated by the numerical references in the drawings are as follows: 1-connecting pipe, 2-sealing sleeve pipe, 3-flange ring, 4-first assembly sleeve pipe, 5-second assembly sleeve pipe, 7-fixed section, 8-elastic pressing sheet, 9-rubber sleeve, 10-clamping cavity, 11-socket, 12-connector, 13-fixing pad, 14-sealing pad, 15-copper seat, 16-connector, 17-sealing ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 to 4, a dustproof and waterproof joint for connecting cables comprises a connecting pipe 1 for connecting cables and a sealing sleeve 2 in threaded connection with the connecting pipe 1, wherein the connecting pipe 1 comprises a flange ring 3 in the middle and assembling sleeves positioned at two sides of the flange ring 3, and the flange ring 3 and the assembling sleeves are of an integrated structure and are non-conductive plastic pieces. The assembly sleeve is respectively defined as a first assembly sleeve 4 and a second assembly sleeve 5, the first assembly sleeve 4 and the second assembly sleeve 5 are identical in structure, the first assembly sleeve 4 and the second assembly sleeve 5 are both in threaded connection with a sealing sleeve 2, the first assembly sleeve 4 comprises a tubular fixed section 7 connected to the flange ring 3 and an elastic pressing sheet 8 arranged at one end, far away from the flange ring 3, of the fixed section 7, and a cable is connected in the connecting pipe 1; the first assembling pipe is connected with the fixed section 7 in a threaded mode, and meanwhile the elastic pressing piece 8 is pressed on the protective skin outside the cable.

The elastic pressing pieces 8 are distributed on the end face, far away from the flange ring 3, of the fixing section 7 along the circumferential direction, wherein the inner side face of each elastic pressing piece 8 is a curved face and is used for being attached to a cable. Still include rubber sleeve 9, rubber sleeve 9 cover is established on elasticity preforming 8, and in order to guarantee the shape of rubber sleeve 9, the size of rubber sleeve 9 should not be too big, should have some tension, can guarantee like this that the fold phenomenon can not appear in the in-process of locking rubber sleeve 9. The socket 11 that is used for grafting elasticity preforming 8 is seted up to the outer end of rubber sleeve 9, and the cladding of elasticity preforming 8 has played the effect that supports rubber sleeve 9 in rubber sleeve 9, and elasticity preforming 8 is the working of plastics.

The external screw thread has been seted up to canned paragraph 7's lateral surface, seal tube 2 includes the assembly segment with 7 threaded connection of canned paragraph and is used for being used for the card chamber 10 on elasticity preforming 8, seal tube 2 keeps away from canned paragraph 7's one end and offers the connector 12 that is used for penetrating the cable, the diameter size of card chamber 10 cross section reduces to connector 12 direction gradually, the maximum diameter more than or equal to elasticity preforming 8 of card chamber 10 cross section constitutes annular maximum diameter, the minimum diameter of card chamber 10 cross section is less than elasticity card elasticity preforming 8 and constitutes annular maximum diameter. The connecting pipe 1 is a hollow pipe, and the cable is connected inside the connecting pipe 1. The left side face and the right side face of the flange ring 3 are both provided with a sealing gasket 14, the sealing gasket 14 comprises an outer side pressing gasket 19 and a fixing gasket 13 fixed on the side face of the flange ring 3, and a buffer cavity 20 is formed between the fixing gasket 13 and the pressing gasket.

During installation, a cable is firstly inserted into the sealing sleeve 2 through the connecting port 12 of the sealing sleeve 2, wherein the connecting port 12 is provided with the sealing gasket 14, and then the connecting pipe 1 is sleeved on the cable to connect the cable together; and finally, the sealing sleeve 2 is in threaded connection with the first assembling sleeve 4 and the second assembling sleeve 5, the clamping cavity 10 acts on the elastic clamping piece to enable the rubber sleeve 9 to be sealed outside the cable protection skin, the connection position is located in the connecting pipe 1, the end face of the sealing sleeve 2 is tightly pressed on the pressing pad, and therefore sealing is carried out at all positions of the joint.

Example 2

As shown in fig. 1 to 3 and 5, a dustproof and waterproof joint for connecting cables in the present embodiment is different from embodiment 1 in that a copper seat 15 is disposed in the middle of a flange ring 3, connectors 16 for connecting with ends of cables are disposed on both left and right side surfaces of the copper seat 15, a connector for inserting a cable end and a compression bolt for fixing the cable end are disposed on a side surface of the connector 16, and the compression bolt is fixed to the connector 16; the connecting pipe 1 and the sealing sleeve 2 are made of plastics.

Example 3

As shown in fig. 1 to 4, the present embodiment is different from embodiment 1 in that a connecting portion for connecting the end of a cable is provided in the middle of a flange ring 3. The connection mode of the connecting part is the connection mode of a cable in the prior art.

Example 4

As shown in fig. 1 to 4, the present embodiment is different from embodiment 1 in that a seal ring 17 is integrally formed on an inner circumferential surface of a rubber boot 9.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides a dustproof and waterproof connects for connecting cable which characterized in that: the cable connecting device comprises a connecting pipe (1) used for connecting a cable and a sealing sleeve (2) in threaded connection with the connecting pipe (1), wherein the connecting pipe (1) comprises a flange ring (3) in the middle and assembling sleeves positioned on two sides of the flange ring (3), the connecting pipe is respectively defined as a first assembling sleeve (4) and a second assembling sleeve (5), the first assembling sleeve (4) and the second assembling sleeve (5) are identical in structure, the first assembling sleeve (4) and the second assembling sleeve (5) are in threaded connection with the sealing sleeve (2), the first assembling sleeve (4) comprises a tubular fixed section (7) connected to the flange ring (3) and an elastic pressing sheet (8) arranged at one end, far away from the flange ring (3), of the fixed section (7), and the cable is connected into the connecting pipe (1); the first assembling pipe is in threaded connection with the fixed section (7) and simultaneously presses the elastic pressing sheet (8) on the protective skin outside the cable.

2. The dust and water joint for connecting cables of claim 1, wherein: elasticity preforming (8) distribute on the terminal surface of flange ring (3) is kept away from in fixed section (7) along circumferencial direction, still include rubber sleeve (9), and rubber sleeve (9) cover is established on elasticity preforming (8), and socket (11) that are used for pegging graft elasticity preforming (8) are offered to the outer end of rubber sleeve (9), and elasticity preforming (8) cladding is in rubber sleeve (9).

3. The dust and water joint for connecting cables of claim 1, wherein: the inner ring surface of the rubber sleeve (9) is integrally formed with a sealing ring (17).

4. The dust and water joint for connecting cables of claim 3, wherein: the external screw thread has been seted up to the lateral surface of canned paragraph (7), seal tube (2) include with canned paragraph (7) threaded connection's assembly section with be used for being used for card chamber (10) on elasticity preforming (8), seal tube (2) are kept away from the one end of canned paragraph (7) and are offered connector (12) that are used for penetrating the cable, the diameter size of card chamber (10) cross section reduces to connector (12) direction gradually, the maximum diameter more than or equal to elasticity preforming (8) of card chamber (10) cross section constitute annular maximum diameter, the minimum diameter of card chamber (10) cross section is less than elasticity preforming (8) and constitutes annular maximum diameter.

5. The dust and water joint for connecting cables of claim 4, wherein: the left side face and the right side face of the flange ring (3) are both provided with a sealing gasket (14), the sealing gasket (14) comprises an outer side pressing gasket and a fixing gasket (13) fixed on the side face of the flange ring (3), and a buffer cavity is formed between the fixing gasket (13) and the pressing gasket.

6. The dust-and-water joint for connecting cables according to any one of claims 1 to 5, wherein: a copper seat (15) is arranged in the middle of the flange ring (3), connectors (16) used for being connected with the end portions of the cables are arranged on the left side surface and the right side surface of the copper seat (15), interfaces penetrating cable ends and compression bolts used for fixing the cable ends are arranged on the side surfaces of the connectors (16), and the compression bolts are fixed on the connectors (16); the connecting pipe (1) and the sealing sleeve (2) are made of plastics.

7. The dust-and-water joint for connecting cables according to any one of claims 1 to 5, wherein: the connecting pipe (1) is a hollow pipe, and the cable is connected inside the connecting pipe (1).

8. The dust-and-water joint for connecting cables according to any one of claims 1 to 5, wherein: the middle part of the flange ring (3) is provided with a connecting part for connecting the end head of the cable.