CN211508571U

CN211508571U - Cable fixing head main body and cable fixing head

Info

Publication number: CN211508571U
Application number: CN202020451485.7U
Authority: CN
Inventors: 曾浩; 李小强; 曾凡乐; 韩冰; 毛天良
Original assignee: Beisit Electric Tech Hangzhou Co ltd
Current assignee: Beisit Electric Tech Hangzhou Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-09-15
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a cable fixing head main part and cable fixing head. The cable fixing head main body includes: the fixing head comprises a fixing head main body, wherein a threaded section is arranged at one axial end of the fixing head main body, and the peripheral surface of the threaded section is a threaded surface; the annular gasket is sleeved on the outer side of the threaded section, and the minimum diameter of the inner circumferential surface of the gasket is smaller than the maximum diameter of the threaded section. Based on the diameter relation of gasket inner peripheral surface and screw thread section outer peripheral face for directly can realize reliable connection between them with the help of the structure of itself in gasket and the fixed head main part, can effectively avoid the gasket to drop from the fixed head main part, the gasket is stable with the cooperation of fixed head main part, the dismouting operation between fixed head main part and other equipment of being convenient for improves dismouting efficiency, need not to set up solitary adapting unit connection gasket and fixed head main part in addition, be favorable to practicing thrift the cost.

Description

Cable fixing head main body and cable fixing head

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to cable fixing head main part and cable fixing head.

Background

In the field of electrical equipment such as machinery, ships, and rail transit, it is necessary to connect electrical components inside the electrical equipment by wires or cables. The wires or cables are usually connected to the cable fixing head, so that the cable outlet holes are kept sealed, waterproof and dustproof, and the equipment can operate safely and reliably.

The existing cable fixing head comprises a fixing head main body, a packing nut and a sealing ring, during assembly, a cable is inserted into the main body of the cable fixing head, the packing nut is screwed up, the packing nut compresses the sealing ring, and the sealing ring clamps an outer insulating layer of the cable, so that the effects of clamping, water proofing and dust proofing are achieved.

In addition, the outer side of the fixation head body usually needs to be provided with a gasket in order to secure the sealing connection between the fixation head body and other equipment. However, in the prior art, the gasket and the fixing head main body cannot be reliably connected together, and the gasket is easy to move axially relative to the fixing head main body, so that inconvenience is brought to connection between the fixing head main body and other equipment.

Therefore, how to achieve reliable connection between the gasket and the fixing head main body is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a cable fixing head main body, which is reliable in connection between the fixing head main body and a gasket. Another object of the present invention is to provide a cable fixing head including the above cable fixing head main body, wherein the connection between the fixing head main body and the gasket is reliable.

In order to achieve the above object, the utility model provides a following technical scheme:

a cable retention head body comprising:

the fixing head comprises a fixing head main body, wherein a threaded section is arranged at one axial end of the fixing head main body, and the peripheral surface of the threaded section is a threaded surface;

the annular gasket is sleeved on the outer side of the threaded section, and the minimum diameter of the inner circumferential surface of the gasket is smaller than the maximum diameter of the threaded section.

Preferably, the inner peripheral surface of the gasket has a diameter gradually decreasing in the axial direction.

Preferably, the inner peripheral surface of the gasket is a circular table.

Preferably, the minimum diameter of the inner peripheral surface of the spacer is larger than the minimum diameter of the threaded section.

The utility model provides a cable fixing head, includes sealing washer, compels tight nut and cable fixing head main part, cable fixing head main part is as above-mentioned arbitrary cable fixing head main part.

The utility model provides a cable fixing head main part, include: the fixing head comprises a fixing head main body, wherein a threaded section is arranged at one axial end of the fixing head main body, and the peripheral surface of the threaded section is a threaded surface; the minimum diameter of the inner peripheral surface of the gasket is smaller than the maximum diameter of the threaded section

Based on the diameter relation of gasket inner peripheral surface and screw thread section outer peripheral face for directly can realize reliable connection between them with the help of the structure of itself in gasket and the fixed head main part, can effectively avoid the gasket to drop from the fixed head main part, the gasket is stable with the cooperation of fixed head main part, the dismouting operation between fixed head main part and other equipment of being convenient for improves dismouting efficiency, need not to set up solitary adapting unit connection gasket and fixed head main part in addition, be favorable to practicing thrift the cost.

The utility model provides a cable fixing head including above-mentioned cable fixing head main part, it is reliable to connect between its fixing head main part and the gasket.

Drawings

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

Fig. 1 is a structural diagram of a gasket in a cable fixing head main body according to the present invention;

FIG. 2 is an axial cross-sectional view of FIG. 1;

fig. 3 is a structural diagram of a fixing head main body in a cable fixing head main body provided by the present invention;

FIG. 4 is an axial cross-sectional view of FIG. 3;

fig. 5 is an overall structure diagram of the cable fixing head main body provided by the present invention;

fig. 6 is an axial cross-sectional view of fig. 5.

Reference numerals:

1-fixed head main body, 11-threaded section;

2-a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a cable fixed head main part, it is reliable to connect between its fixed head main part and the gasket. The utility model discloses a another core provides a cable fixing head including above-mentioned cable fixing head main part, connects reliably between its fixing head main part and the gasket.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the embodiment of the cable fixing head main body provided by the present invention, please refer to fig. 1 to 6, which includes a fixing head main body 1 and a gasket 2.

One end of the fixing head main body 1 in the axial direction is a threaded section 11, the outer peripheral surface of the threaded section 11 is a threaded surface, and the threaded section 11 is used for being in threaded connection with other structures or equipment.

The gasket 2 is of an annular structure, and the gasket 2 is sleeved outside the threaded section 11. The smallest diameter of the inner circumferential surface of the spacer 2 is smaller than the largest diameter of the threaded segment 11. Wherein the maximum diameter of the thread segment 11 is the diameter at the crest. In addition, when the gasket 2 is made of an elastic material, the diameter of the gasket 2 refers to the diameter of the gasket 2 in a free state in which elastic deformation does not occur.

In the process of assembling the gasket 2 on the threaded section 11, the gasket 2 can be pressed on the threaded section 11 by means of a tool or the elasticity of the gasket 2, and after the gasket 2 is installed on the threaded section 11, as shown in fig. 6, the maximum diameter of the threaded section 11 plays a limiting role on the gasket 2, so that the gasket 2 cannot axially fall off from the fixing head main body 1.

In this embodiment, based on the diameter relation of 2 inner peripheral surfaces of gasket and 11 outer peripheral surfaces of screw thread section, make directly can realize reliable connection between them with the help of the structure of itself on gasket 2 and fixed head main part 1, can effectively avoid gasket 2 to drop from fixed head main part 1, gasket 2 is stable with the cooperation of fixed head main part 1, be convenient for the dismouting operation between fixed head main part 1 and other equipment, improve dismouting efficiency, need not to set up solitary adapting unit in addition and connect gasket 2 and fixed head main part 1, be favorable to practicing thrift the cost.

Further, the diameter of the inner peripheral surface of the gasket 2 is gradually reduced in the axial direction, so that the gasket 2 can be more smoothly fitted on the threaded section 11 at positions other than the position where the diameter of the inner peripheral surface is smallest during the fitting process. Of course, in other embodiments, the inner circumferential surface of the gasket 2 may also be provided as a cylindrical surface, i.e., the same diameter throughout.

Further, the inner peripheral surface of the gasket 2 is a circular table surface, which is convenient for processing the characteristic that the inner peripheral surface is gradually reduced along the axial direction.

Further, the minimum diameter of the inner circumferential surface of the gasket 2 is larger than the minimum diameter of the threaded section 11, which is beneficial to reducing the abrasion degree between the inner circumferential surface of the gasket 2 and the threaded section 11 while the gasket 2 is locked by the threaded section 11.

Except that above-mentioned cable fixed head main part, the utility model also provides a cable fixed head, this cable fixed head include cable fixed head main part, compel tight nut and sealing washer. The cable fixing head main body can be specifically the cable fixing head main body provided in any one of the above embodiments, and the beneficial effects can be correspondingly referred to the above embodiments. For the structure of other parts of the cable fixing head, please refer to the prior art, and the description is omitted here.

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.

It is right above the utility model provides a cable fixing head and cable fixing head main part have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A cable retention head body, comprising:

the fixing head comprises a fixing head main body (1), wherein a threaded section (11) is arranged at one axial end of the fixing head main body (1), and the peripheral surface of the threaded section (11) is a threaded surface;

the annular gasket (2) is sleeved on the outer side of the threaded section (11), and the minimum diameter of the inner circumferential surface of the gasket (2) is smaller than the maximum diameter of the threaded section (11).

2. The cable fixing head body according to claim 1, wherein the diameter of the inner peripheral surface of the spacer (2) is gradually reduced in the axial direction.

3. The cable fixing head body according to claim 2, wherein the inner peripheral surface of the spacer (2) is a round table surface.

4. A cable fixing head body according to claim 3, wherein the minimum diameter of the inner circumferential surface of the spacer (2) is greater than the minimum diameter of the threaded section (11).

5. A cable fixing head comprising a sealing ring, a packing nut and a cable fixing head body, wherein the cable fixing head body is as claimed in any one of claims 1 to 4.