CN111682351B

CN111682351B - Waterproof cable suit

Info

Publication number: CN111682351B
Application number: CN202010566965.2A
Authority: CN
Inventors: 史科; 卢宽; 黄崇辉; 沈洁; 许宁宁
Original assignee: Jiangsu Hengxin Technology Co Ltd
Current assignee: Jiangsu Hengxin Technology Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2022-03-29
Anticipated expiration: 2040-06-19
Also published as: CN111682351A

Abstract

The invention discloses a waterproof cable suit, which comprises a jumper assembly and a waterproof assembly, wherein the jumper assembly comprises a cable, a threaded sleeve and an injection molding piece, the threaded sleeve and the injection molding piece are arranged at the end part of the cable, and the cable is connected with a connector; the waterproof assembly comprises a first sealing element, a rubber sleeve and a second sealing element, the first sealing element is tightly sleeved on the groove surface of the connector after being installed in place, the second sealing element is tightly sleeved outside the cable, the threaded sleeve is positioned between the first sealing element and the second sealing element, and the rubber sleeve is sleeved outside the first sealing element and the second sealing element after being installed in place and is tightly matched with the first sealing element, the threaded sleeve and the second sealing element. The first sealing element, the rubber sleeve and the second sealing element form a sealing cavity at the cable joint, and the sealing and waterproof effects at the cable joint are ensured. During installation, only the first sealing element is required to be sleeved on the connector, and the rubber sleeve is pushed to be in close contact with the first sealing element and the second sealing element after the cable is connected, so that the installation is convenient and the structure is reliable.

Description

Waterproof cable suit

Technical Field

The invention relates to a cable protection technology, in particular to a waterproof cable sleeve.

Background

Use the clay sticky tape to carry out water-proof protection to cable junction portion usually among the prior art, along with the miniaturization and the densification of basic station, the water-proof protection construction space of clay sticky tape is more and more littleer, and along with higher and more high cost of labor, it also leads to the construction cost constantly to use the clay sticky tape to carry out waterproof mode to increase simultaneously, and this kind of waterproof mode later stage is also very big to the maintenance work volume of website in addition.

Disclosure of Invention

The invention aims to provide a waterproof cable set convenient to install.

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

According to one aspect of the invention, a waterproof cable suit is provided, which comprises a jumper assembly and a waterproof assembly, wherein the jumper assembly comprises a cable, a threaded sleeve and an injection molding piece, the threaded sleeve and the injection molding piece are arranged at the end part of the cable, and the cable is connected with a connector; the waterproof assembly comprises a first sealing element, a rubber sleeve and a second sealing element, the first sealing element is tightly sleeved on the groove surface of the connector after being installed in place, the second sealing element is tightly sleeved outside the cable, the threaded sleeve is positioned between the first sealing element and the second sealing element, and the rubber sleeve is sleeved outside the first sealing element and the second sealing element and tightly matched with the first sealing element, the threaded sleeve and the second sealing element after being installed in place.

In an embodiment, the rubber sleeve of the waterproof cable sleeve comprises a first inner rubber sleeve surface, a second inner rubber sleeve surface and a first rubber sleeve positioning surface, the inner diameter of the first inner rubber sleeve surface is larger than that of the second inner rubber sleeve surface, the first rubber sleeve positioning surface is a step surface between the first inner rubber sleeve surface and the second inner rubber sleeve surface, the first sealing element is tightly matched with the first inner rubber sleeve surface, and the threaded sleeve and the second sealing element are both tightly matched with the second inner rubber sleeve surface.

In one embodiment, the outer surface of the first sealing element of the waterproof cable sleeve is provided with a plurality of water-blocking rings, and the outer diameter of each water-blocking ring is larger than the inner diameter of the rubber sleeve.

In an embodiment, at least one clamping groove is formed in the inner surface of the second sealing element of the waterproof cable sleeve along the circumferential direction, and a sealing ring is arranged between the clamping groove and the cable.

In one embodiment, the waterproof cable set further comprises a protective assembly, the protective assembly comprises a protective shell and a protective pipe, the protective shell is tightly sleeved outside the rubber sleeve after being installed in place, the protective pipe is sleeved outside the cable, and the end part of the protective pipe extends into the protective shell.

In an embodiment, a protection shell boss is arranged on the inner surface of one end, away from the first sealing element, of the protection shell of the waterproof cable sleeve, and the protection tube is tightly matched with the protection shell boss.

In one embodiment, the inner surface of the protective shell of the waterproof cable sleeve, which is close to one end of the first sealing element, is provided with a tooth-shaped structure, and the tooth-shaped structure is tightly matched with the rubber sleeve.

In one embodiment, one end of the rubber sleeve of the waterproof cable sleeve, which is far away from the first sealing element, comprises a second positioning surface of the rubber sleeve, the inner surface of the protective shell comprises a positioning surface of the protective shell, and after the protective shell is installed in place, the positioning surface of the protective shell is in close contact with the second positioning surface of the rubber sleeve.

In one embodiment, the outer surface of the protective shell of the waterproof cable set is provided with a skid-proof structure.

In one embodiment, the material of the protective component of the waterproof cable jacket is rigid plastic.

The embodiment of the invention has the beneficial effects that: through setting up first sealing member, rubber sleeve and second sealing member, the rubber sleeve cup joints after the installation targets in place outside first sealing member and the second sealing member and with first sealing member, swivel nut and second sealing member tight fit to form sealed cavity in cable joint department, ensured the sealed water-proof effects of cable joint department. Only need cup joint first sealing member on the connector during the installation, connect after the cable promote the rubber sleeve make it with first sealing member and second sealing member in close contact with can, simple operation and structure are reliable, have reduced installation and maintenance cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

The above features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.

FIG. 1 is an exploded schematic view of an embodiment of the present invention;

FIG. 2 is a first cross-sectional view of an embodiment of the present invention;

FIG. 3 is a second cross-sectional view of the present invention;

FIG. 4 is a schematic view of the assembly of a first seal member with a connector in accordance with an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a second seal according to an embodiment of the present invention;

FIG. 6 is a schematic, cut-away view of a second seal according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a rubber boot according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of a protective enclosure of an embodiment of the invention;

fig. 9 is an effect diagram after the embodiment of the present invention is installed.

Wherein: 1. a connector; 2. a first seal member; 3. a jumper assembly; 4. a second seal member; 5. a rubber sleeve; 6. a protective housing; 7. a protective tube; 11. a connector locating end face; 12. a connector groove surface; 21. a first seal positioning surface 22, a water-blocking ring; 23. a first seal inner surface; 24. a first seal member outer surface; 25. the deformed outer surface of the first seal member; 26. the deformed inner surface of the first sealing element; 31. a threaded sleeve; 32. injection molding; 33 a cable; 41. a second seal outer surface; 42. a seal ring; 43. a second seal inner surface; 44. the inner surface of the sealing ring; 51. a rubber sleeve first inner surface; 52. a second inner surface of the rubber sleeve; 53. the outer surface of the rubber sleeve; 54. a first positioning surface of the rubber sleeve; 55. a second positioning surface of the rubber sleeve; 56. the rubber sleeve is displaced in a first shape; 57. the second shape displacement of the rubber sleeve; 58. the third shape displacement of the rubber sleeve; 61. a tooth-shaped structure; 62. a boss of the protective shell; 63. a protective enclosure inner surface; 64. an anti-slip structure; 65. a protective housing locating surface; 71. an outer surface of the protective tube; 72. the inner surface of the protective tube.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be construed as imposing any limitation on the scope of the present invention.

As shown in fig. 1 to 3, the embodiment of the invention discloses a waterproof cable jacket capable of ensuring the waterproof sealing performance of a connecting part, the waterproof cable jacket comprises a jumper assembly 3 and a waterproof assembly, the jumper assembly 3 comprises a cable 33, a threaded sleeve 31 and an injection molding piece 32, the threaded sleeve 31 and the injection molding piece 32 are arranged at the end part of the cable 33, and the end part of the cable 33 can be connected with a connector 1; the waterproof assembly comprises a first sealing element 2, a rubber sleeve 5 and a second sealing element 4, when the connector is not installed on the waterproof cable sleeve, the first sealing element 2 is independently arranged, and the rubber sleeve 5 and the second sealing element 4 are sleeved outside the cable 33 in advance. The second sealing element 4 is tightly sleeved outside the cable 33 to ensure the sealing performance between the inner surface of the second sealing element 4 and the cable 33. The rubber sleeve 5 can be movably sleeved outside the cable 33.

During installation, the first sealing element 2 is tightly sleeved on the groove surface 12 of the connector, then the cable 33 is connected with the connector 1, and the rubber sleeve 5 is pushed towards the direction of the connector 1 and is sleeved outside the first sealing element 2 and the second sealing element 4. At this moment, first sealing member 2 and second sealing member 4 all with rubber sleeve 5 in close contact with to form seal chamber, guaranteed the waterproof sealing effect of junction.

In addition, the screw sleeve 31 is positioned between the first sealing member 2 and the second sealing member 4, and the screw sleeve 31 is also in close contact with the rubber sleeve 5, so that the rubber sleeve 5 can fix the position of the screw sleeve 31 and prevent the cable 33 from being pulled out.

Preferably, the axial length of the first seal 2 should coincide with the length of the connector recess face 12, to stabilize the position of the first seal 2 on the connector 1. When the connector is mounted, the first seal positioning surface 21 abuts against the connector positioning end surface 11, that is, the first seal positioning surface is mounted in place. In addition, in order to achieve the sealing effect, it is necessary to ensure that the inner diameter of the inner surface 23 of the first sealing element is smaller than the outer diameter of the groove surface 12 of the connector, the first sealing element 2 is deformed after being sleeved on the connector 1, and simultaneously, the outer surface 24 of the first sealing element is deformed to enlarge the radius of the first sealing element, as shown in fig. 3 and 4, the inner surface 26 of the first sealing element is in close contact with the groove surface 12 of the connector after being deformed, and the outer diameter of the outer surface 25 of the first sealing element is larger than the first inner surface 51 of the rubber sleeve after being deformed, so as to ensure the waterproof sealing effect between the rubber sleeve 5 and the first sealing element 2.

As shown in fig. 7, in a possible embodiment, the rubber sleeve 5 includes a first inner rubber sleeve surface 51, a second inner rubber sleeve surface 52 and a first rubber sleeve positioning surface 54, the inner diameter of the first rubber sleeve surface 51 is larger than that of the second inner rubber sleeve surface 52, the first rubber sleeve positioning surface 54 is a step surface between the first rubber sleeve surface 51 and the second rubber sleeve surface 52, the first seal member 2 is tightly fitted with the first rubber sleeve surface 51, and the thread insert 31 and the second seal member outer surface 41 are tightly fitted with the second rubber sleeve surface 52. When the rubber sleeve 5 is pushed into place, the rubber sleeve first locating surface 54 abuts the end surface of the first seal 2. Through such a step structure, the rubber sleeve 5 can be conveniently determined to be installed in place, and the pushing over head is prevented.

In a possible embodiment, as shown in fig. 4, the outer surface of the first seal 2 is provided with a plurality of water-stop rings 22, the outer diameter of the water-stop rings 22 being larger than the inner diameter of the first inner surface 51 of the rubber sleeve. By providing a plurality of water-blocking rings 22, a plurality of waterproof layers are formed, and the sealing performance is better.

As shown in fig. 5 and 6, in order to improve the sealing performance between the second sealing element 4 and the cable 33, at least one groove may be circumferentially formed on an inner surface 43 of the second sealing element 4, and a sealing ring 42 made of rubber or the like may be disposed between the groove and the cable 33, where an inner diameter of an inner surface 44 of the sealing ring is smaller than an outer diameter of the cable 33 to form a waterproof seal.

In order to prevent animals such as birds from destroying the inlet wire of the outer sheath of the cable in the outdoor environment, the waterproof cable suit can also comprise a protective assembly, the protective assembly comprises a protective shell 6 and a protective pipe 7, the protective shell 6 is tightly sleeved outside the rubber sleeve 5 after being installed in place, the protective pipe 7 is sleeved outside the cable 33 to protect the connecting part, and the end part of the protective pipe 7 extends into the protective shell 6.

The installation process of the protection component comprises the following steps: after the rubber sleeve 5 is installed, the protective shell 6 is pushed towards the rubber sleeve 5, the outer surface 53 of the rubber sleeve is propped open by the first sealing element 2 and the threaded sleeve 31 to form a third shape deflection 58 of the rubber sleeve and a second shape deflection 57 of the rubber sleeve, the second sealing element 4 which is 5 times of the rubber sleeve is propped open to form a first shape deflection 56 of the rubber sleeve, and the protective shell 6 can be set to be in close contact with any shape deflection in order to fix the position of the protective shell 6.

Further, a tooth-shaped structure 61 may be provided on the inner surface of the protective casing 6 near the end of the first sealing member 2, and the tooth-shaped structure 61 is in close contact with the third displacement 58 and the second displacement 57 of the rubber sleeve, so as to achieve a better anti-slip fixing effect.

In order to prevent the protective shell 6 and the protective tube 7 from moving relatively, a protective shell boss 62 is arranged on the inner surface 63 of the protective shell at the end of the protective shell 6 far away from the first sealing element 2, and the inner diameter of the protective shell boss 62 is slightly smaller than the outer diameter of the outer surface 71 of the protective tube, so that the protective tube 7 is tightly matched with the protective shell boss 62. The protective tube 7 is preferably a ring-shaped corrugated tube to have good contraction property and bending property, and the inner diameter of the inner surface 72 of the protective tube should be larger than the outer diameter of the cable 33.

As shown in fig. 7 and 8, one end of the rubber sleeve 5, which is far away from the first sealing element 2, includes a second positioning surface 55 of the rubber sleeve, the inner surface of the protective casing 6 includes a positioning surface 65 of the protective casing, and after the protective casing 6 is installed in place, the second positioning surface 55 of the rubber sleeve is in close contact with the positioning surface 65 of the protective casing.

In order to facilitate the pushing of the protective casing 6, in a possible embodiment, an anti-slip structure 64 such as a ring-shaped protrusion may be further provided on the outer surface of the protective casing 6.

In the aspect of material, the material of the protective shell 6 and the protective tube 7 is nylon, and can also be other hard plastics. Can directly do waterproof construction between the protective tube 7 of theoretical nylon material and the rubber sleeve 5, actually, because the nylon tube is extrusion injection moulding, there is the gluey seam of closing of one symmetry on the surface, is protruding or sunken state, can't guarantee holistic planarization, and the experiment shows that there is the risk of leaking in the gluey seam position of closing. Therefore, the waterproof component and the protection component are separately arranged, the waterproof component independently forms a sealed cavity, the protection component wraps the waterproof component and the cable 33 to play a role in protection, and a contact surface between the protection component and the waterproof component does not need to play a role in waterproofing.

Fig. 9 is an effect diagram after the installation of the embodiment of the invention, as shown in fig. 9, the installation process of the cable kit is rapid and convenient, the whole structure is firm and reliable after the installation, and the waterproof and bird-proof effects are good.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A waterproof cable assembly, comprising:

the jumper assembly comprises a cable, a threaded sleeve and an injection molding piece, the threaded sleeve and the injection molding piece are arranged at the end part of the cable, and the cable is connected with the connector;

the waterproof assembly comprises a first sealing element, a rubber sleeve and a second sealing element, the first sealing element is tightly sleeved on the groove surface of the connector after being installed in place, the second sealing element is tightly sleeved outside the cable, the threaded sleeve is positioned between the first sealing element and the second sealing element, and the rubber sleeve is sleeved outside the first sealing element and the second sealing element after being installed in place and is tightly matched with the first sealing element, the threaded sleeve and the second sealing element;

the rubber sleeve comprises a first inner surface of the rubber sleeve, a second inner surface of the rubber sleeve and a first positioning surface of the rubber sleeve, the inner diameter of the first inner surface of the rubber sleeve is larger than the second inner surface of the rubber sleeve, the first positioning surface of the rubber sleeve is a step surface between the first inner surface of the rubber sleeve and the second inner surface of the rubber sleeve, the first sealing element is tightly matched with the first inner surface of the rubber sleeve, and the threaded sleeve is tightly matched with the second sealing element.

2. The waterproof cable assembly of claim 1, wherein: the outer surface of the first sealing element is provided with a plurality of water-blocking rings, and the outer diameter of each water-blocking ring is larger than the inner diameter of the rubber sleeve.

3. The waterproof cable assembly of claim 1, wherein: at least one clamping groove is formed in the inner surface of the second sealing element along the circumferential direction, and a sealing ring is arranged between the clamping groove and the cable.

4. The waterproof cable assembly of claim 1, wherein: the cable protection device is characterized by further comprising a protection assembly, wherein the protection assembly comprises a protection shell and a protection pipe, the protection shell is tightly sleeved outside the rubber sleeve after being installed in place, the protection pipe is sleeved outside the cable, and the end part of the protection pipe extends into the protection shell.

5. The waterproof cable assembly of claim 4, wherein: the protective housing is far away from be provided with the protective housing boss on the internal surface of first sealing member one end, the protective tube with protective housing boss tight fit.

6. The waterproof cable assembly of claim 4, wherein: and a tooth-shaped structure is arranged on the inner surface of one end, close to the first sealing element, of the protective shell, and the tooth-shaped structure is tightly matched with the rubber sleeve.

7. The waterproof cable assembly of claim 4, wherein: the rubber sleeve is kept away from the one end of first sealing member is including rubber sleeve second locating surface, protective housing's internal surface is including the protective housing locating surface, protective housing installs the back that targets in place, the protective housing locating surface with rubber sleeve second locating surface in close contact with.

8. The waterproof cable assembly of claim 4, wherein: the outer surface of the protective shell is provided with an anti-skidding structure.

9. The waterproof cable assembly of claim 4, wherein: the material of the protection component is hard plastic.