CN108155507B

CN108155507B - Test line plug protective sleeve

Info

Publication number: CN108155507B
Application number: CN201711213695.1A
Authority: CN
Inventors: 马婧怡; 李季; 鲍维然; 柳楠
Original assignee: State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd
Priority date: 2017-11-27
Filing date: 2017-11-27
Publication date: 2020-06-19
Anticipated expiration: 2037-11-27
Also published as: CN108155507A

Abstract

The invention provides a test wire plug protective sleeve which comprises a sleeve body, wherein an accommodating cavity for accommodating a test wire plug and a limiting part for limiting the test wire plug are arranged in the sleeve body; the limiting part extends towards the accommodating cavity to limit the test wire plug to move along the extending direction of the sleeve body when the test wire plug is inserted into the accommodating cavity. Therefore, when the protection tester is used, the test line plug is inserted into the accommodating cavity of the sleeve body and penetrates out to be connected with the test equipment in a plugging manner, the sleeve body can provide an effective stress point for the test line plug, the phenomenon of wire breakage caused by plugging and pulling the test line plug for many times is avoided, and the problem that the test line plug is easily broken when the protection tester is used in the prior art is solved.

Description

Test line plug protective sleeve

Technical Field

The invention relates to the field of power electronic equipment, in particular to a test wire plug protective sleeve.

Background

When the protection tester is used, the test tester needs to be connected with the terminal strip of the verified equipment or the test equipment one by using a DDC special test line. Many tasks require multiple test wire insertions and removals, such as testing the direct resistance, and multiple commutation tests.

However, because the interval distance is nearer between each terminal row of check-up equipment, the plug department of test wire lacks a stress point when plug test wire, can't directly grip the plug of test wire with the hand, can only carry out the plug through the line body of dragging the test wire, easily causes the test wire broken string, and then leads to measuring error or electric leakage even.

Disclosure of Invention

The invention mainly aims to provide a test wire plug protective sleeve to solve the problem that a test wire plug is broken easily when a protection tester in the prior art is used for plugging and unplugging the test wire plug for multiple times.

In order to achieve the purpose, the invention provides a test wire plug protective sleeve which comprises a sleeve body, wherein an accommodating cavity for accommodating a test wire plug and a limiting part for limiting the test wire plug are arranged in the sleeve body; the limiting part extends towards the accommodating cavity to limit the test wire plug to move along the extending direction of the sleeve body when the test wire plug is inserted into the accommodating cavity.

Furthermore, the sleeve body is of a cylindrical structure and is provided with a first port for the penetration of the test wire plug and a second port for the penetration of the test wire plug; the accommodating cavity is a cylindrical cavity between the first port and the second port.

Further, the cross-sectional area of the first port is greater than the cross-sectional area of the second port.

Further, the cover body includes: the device comprises a first section body and a second section body, wherein one end of the first section body is provided with a first port, one end of the second section body is provided with a second port, and the other end of the first section body is connected with the other end of the second section body; wherein, spacing portion is located the transition department of connecting of first section body and second section body.

Further, from the first port to the direction of second port, the cross-sectional area of the holding cavity in the first section body gradually reduces to form a limiting part.

Further, the cross section of the first port is strip-shaped, and the cross section of the second port is circular.

Further, the test wire plug protective sheath still includes: the stress bulge is arranged on the sleeve body and used for applying force to the test wire plug through the stress bulge when the test wire plug is inserted into the accommodating cavity.

Furthermore, the number of the stress bulges is two, and the two stress bulges are oppositely arranged along the radial direction of the sleeve body.

Furthermore, the test wire plug protective sleeve is made of an insulating material.

Furthermore, the test wire plug protective sleeve is made of PVC materials.

The test wire plug protective sleeve applying the technical scheme of the invention comprises a sleeve body, wherein the sleeve body is internally provided with an accommodating cavity for accommodating the test wire plug and a limiting part for limiting the test wire plug; the limiting part extends towards the accommodating cavity to limit the test wire plug to move along the extending direction of the sleeve body when the test wire plug is inserted into the accommodating cavity. Therefore, when the protection tester is used, the test line plug is inserted into the accommodating cavity of the sleeve body and penetrates out to be connected with the test equipment in a plugging manner, the sleeve body can provide an effective stress point for the test line plug, the phenomenon of wire breakage caused by plugging and pulling the test line plug for many times is avoided, and the problem that the test line plug is easily broken when the protection tester is used in the prior art is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of an alternative test wire plug protective sleeve and test wire plug according to an embodiment of the present invention;

FIG. 2 is a schematic side view of an alternative test line plug boot according to an embodiment of the present invention;

FIG. 3 is a schematic top view of an alternative test line plug boot according to an embodiment of the present invention; and

fig. 4 is a rear view of an alternative test line plug protective sleeve according to an embodiment of the invention.

Wherein the figures include the following reference numerals:

10. a sleeve body; 11. an accommodating chamber; 12. a limiting part; 13. a first segment; 14. a second segment; 20. a stress bulge; 30. and (6) testing the line plug.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The test wire plug protective sleeve according to the embodiment of the invention, as shown in fig. 1, comprises a sleeve body 10, wherein the sleeve body 10 is internally provided with an accommodating cavity 11 for accommodating a test wire plug 30 and a limiting part 12 for limiting the test wire plug 30; the limiting portion 12 extends toward the accommodating cavity 11 to limit the test wire plug 30 from moving along the extending direction of the sheath 10 when the test wire plug is inserted into the accommodating cavity 11.

The protective sleeve for the test wire plug 30 comprises a sleeve body 10, wherein an accommodating cavity 11 for accommodating the test wire plug 30 and a limiting part 12 for limiting the test wire plug 30 are arranged in the sleeve body 10; the limiting portion 12 extends toward the accommodating cavity 11 to limit the test wire plug 30 from moving along the extending direction of the sheath 10 when the test wire plug 30 is inserted into the accommodating cavity 11. Thereby when the protection tester uses, insert holding chamber 11 of the cover body 10 and wear out the back through with test wire plug 30 and carry out plug connection with test wire plug 30 and test equipment again, cover body 10 can provide effectual stress point for test wire plug 30, avoids a lot of plug test wire plug 30 to cause the broken string phenomenon, has solved the problem that the protection tester among the prior art leads to test wire plug 30 broken string easily many times plug test wire plug 30 in the use.

In specific implementation, as shown in fig. 2 and 3, the sheath 10 includes: the sleeve body 10 is of a cylindrical structure, one end of the first section body 13 is provided with a first port, one end of the second section body 14 is provided with a second port, the other end of the first section body 13 is connected with the other end of the second section body 14 to form a cylindrical structure, and the accommodating cavity 11 is a cylindrical cavity between the first port and the second port; wherein, the limiting part 12 is located at the connecting transition of the first segment 13 and the second segment 14. The first port is used for the test wire plug 30 to penetrate in, and the second port is used for the test wire plug 30 to penetrate out. The cross-sectional area of the first port is larger than that of the second port, and from the first port to the second port, the cross-sectional area of the accommodating cavity in the first segment body 13 is gradually reduced to form the limiting part 12. Because the head end of the test wire plug 30 is less, and the rear end is greater, when specifically using, the head end of the test wire plug 30 is inserted by the first port of the cover body 10 and is worn out by the second port, after the head of the test wire plug 30 stretches out a certain distance, the greater part of the rear end of the test wire plug 30 is clamped on the limiting part 12 of the cover body 10, at this moment, the test wire plug 30 can be inserted into the test equipment through the handheld cover body 10, the test wire plug 30 is pulled out by the test equipment through the handheld cover body 10 after the use is finished, in the process of plugging and pulling the test wire plug 30, the cover body 10 can uniformly apply force to the test wire plug 30, and the test wire plug 30 is prevented from being broken due to frequent plugging and pulling.

The contact pin of the front portion of test line plug 30 is rod body structure, the handle body at rear portion is bar structure, in order to match with the appearance structure of test line plug 30, and further, as shown in fig. 1 and fig. 4, the cross-section of first port is the bar, and the cross-section of second port is circular, thereby make test line plug 30 wholly insert behind the chamber that holds of the cover body 10, with the inseparable laminating of inner wall that holds the chamber, thereby reach the effect of even application of force, effectively protect test line plug 30.

In order to facilitate the application of force to the test wire plug 30 through the sheath body 10 when inserting and extracting the test wire plug 30, further, as shown in fig. 3 and 4, the test wire plug sheath further includes: the two stress bulges 20 are oppositely arranged on the sleeve body 10 along the radial direction of the sleeve body 10, when the test wire plug 30 is plugged, the two stress bulges 20 are tightly held to push the sleeve body 10 inwards or pull the sleeve body 10 outwards, so that the force can be uniformly applied to the test wire plug 30, and the plugging and unplugging of the test wire plug 30 are realized.

In order to enhance the insulation effect, prevent electric shock, and enhance the friction force between the sleeve body 10 and the test wire plug 30, so as to facilitate the application of force when inserting and pulling the test wire plug 30, further, the test wire plug protective sleeve is made of soft insulation material, preferably, the test wire plug protective sleeve is made of PVC material.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The test wire plug protective sleeve is characterized by comprising a sleeve body (10), wherein an accommodating cavity (11) for accommodating a test wire plug (30) and a limiting part (12) for limiting the test wire plug (30) are arranged in the sleeve body (10);

the limiting part (12) extends towards the inside of the accommodating cavity (11) so as to limit the test wire plug (30) to move along the extending direction of the sleeve body (10) when the test wire plug is inserted into the accommodating cavity (11);

the sleeve body (10) is of a cylindrical structure, and the sleeve body (10) is provided with a first port for the test line plug (30) to penetrate in and a second port for the test line plug (30) to penetrate out, so that the head end of the test line plug (30) is inserted into the first port of the sleeve body (10) and penetrates out of the second port;

wherein the accommodating cavity (11) is a cylindrical cavity between the first port and the second port;

the cross-sectional area of the first port is greater than the cross-sectional area of the second port.

2. A test line plug boot according to claim 1, wherein the boot body (10) comprises:

a first segment (13) and a second segment (14), wherein one end of the first segment (13) is provided with the first port, one end of the second segment (14) is provided with the second port, and the other end of the first segment (13) is connected with the other end of the second segment (14);

wherein, the limiting part (12) is positioned at the connecting transition of the first segment body (13) and the second segment body (14).

3. Test wire plug boot according to claim 2, characterized in that the cross-sectional area of the receiving cavity in the first section (13) decreases gradually from the first port in the direction of the second port to form the stop (12).

4. The test line plug boot of claim 1, wherein the first port is bar shaped in cross-section and the second port is circular in cross-section.

5. The test wire plug protective sheath of claim 1, further comprising:

and the stress bulge (20) is arranged on the sleeve body (10) and used for applying force to the test wire plug (30) through the stress bulge (20) when the test wire plug (30) is inserted into the accommodating cavity (11).

6. A test wire plug boot according to claim 5, wherein there are two stress protrusions (20), and the two stress protrusions (20) are arranged opposite to each other in the radial direction of the boot body (10).

7. The test wire plug protective sheath of claim 1, wherein the test wire plug protective sheath is made of an insulating material.

8. The test wire plug protective sheath of claim 7, wherein the test wire plug protective sheath is made of PVC material.