CN220603587U

CN220603587U - Installation test pencil

Info

Publication number: CN220603587U
Application number: CN202322230802.9U
Authority: CN
Inventors: 张涛; 刘彤
Original assignee: Gansu Third Construction Group Co ltd
Current assignee: Gansu Third Construction Group Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-03-15
Anticipated expiration: 2033-08-18

Abstract

The utility model relates to the technical field of test pens, in particular to an installation test pen, which comprises a shell, wherein the bottom end of the shell is connected with a pen cover, a pin is fixed on the pen cover, the pen cover is fixed with the shell through magnetic attraction, a partition block is arranged in the middle of the shell and is a safety resistor, an extension sleeve is arranged at the bottom of the shell, a pen point is connected in the extension sleeve, a safety telescopic structure is arranged between the bottom end of the partition block and the extension sleeve, a first spring is arranged at the top end of the partition block, neon bubbles are arranged at the top end of the first spring, a second spring is arranged at the top end of the neon bubbles, a metal cover is connected at the top end of the shell through threads, the second spring is connected with the metal cover, and the pin is fixed on the pen cover through the pin when the test pen is used, the pen cover is fixed on clothes, so that the test pen is more portable.

Description

Installation test pencil

Technical Field

The utility model relates to the technical field of test pencil, in particular to an installation test pencil.

Background

As is well known, test pens are also called test pens, simply called "pens". Is an electrical tool for testing whether a wire is charged. The pen body is provided with a neon bulb, and if the neon bulb emits light during testing, the lead is provided with electricity or is a fire wire of a passage. The pen point and the pen tail of the test pencil are made of metal materials, and the pen holder is made of insulating materials. When the test pencil is used, the metal part at the tail end of the test pencil is necessarily touched by hands, otherwise, because a loop is not formed between a charged body, the test pencil, a human body and the ground, neon bubbles in the test pencil cannot emit light, erroneous judgment is caused, and the charged body is considered to be uncharged.

Today, in some workers in the field of building mechanics, because of the need for market installation equipment and the need for electricity testing in the market, test pens are often used, and the portability of today's test pens can also be improved.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an installation test pencil.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an installation test pencil, includes the shell, the bottom of shell is connected with the pen cap, be fixed with the pin on the pen cap, magnetism is inhaled fixedly between pen cap and the shell, middle part in the shell is provided with the spacer, and the spacer is safety resistor, the bottom of shell is provided with extends the cover to the nib is connected in extending the cover, be provided with safe extending structure between the bottom of spacer and the extension cover, the top of spacer is provided with first spring, neon bulb has been placed on the top of first spring, the top of neon bulb is provided with the second spring, the top threaded connection of shell has the metal cover to the second spring is connected with the metal cover.

Further, the safe telescopic structure comprises a third spring, the pen point is connected in the extension sleeve in a sliding mode, the top end of the pen point is connected with a top plate, and the top plate is made of copper and is connected with the third spring.

Further, the magnetic attraction fixing between the pen cover and the shell comprises a magnetic ring, the extension sleeve and the shell are fixed through a fixing ring, the bottom end of the fixing ring is fixed with the magnetic ring, the bottom end of the magnetic ring is tightly attached to the bottom end in the shell, and the magnetic ring attracts the pen cover.

Furthermore, the pen cap is made of transparent plastic, and the top end of the pen cap is made of metal and can be attracted by the magnetic ring.

Further, the gap between the pen point and the extension sleeve is not more than 0.2 mm.

Further, the sections of the pen point and the extension sleeve are rectangular, but not circular

(III) beneficial effects

Compared with the prior art, the utility model provides the mounting test pencil, which has the following beneficial effects:

this installation test pencil is fixed with the pin through covering in the pen, can fix the pen lid on the clothing through the pin during the use, then take off this test pencil when needs in the pen lid, when not needing to use, insert back the pen lid with test pencil, can let the use of this test pencil more convenient, more portable, through being greater than when the spring when nib atress, the nib can inwards shrink to the shell, when not exerting force to the nib, the nib can stretch out under the promotion of spring to reach the effect of higher security, prevent that the nib from stabbing the health or stabbing bad object.

Drawings

FIG. 1 is a schematic view of the internal structure of the present utility model;

FIG. 2 is a schematic view of the nib according to the present utility model in its contracted configuration;

FIG. 3 is a schematic view of a split structure of the present utility model;

FIG. 4 is a schematic view of the structure of the nib, extension sleeve and housing of the present utility model, partially seen from the bottom.

In the figure: 1. a housing; 2. a pen cap; 3. a pin; 4. a spacer block; 5. an extension sleeve; 6. a pen point; 7. a first spring; 8. neon bulb; 9. a second spring; 10. a metal cover; 11. a third spring; 12. a top plate; 13. a magnetic ring; 14. and a fixing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model relates to an installation test pencil, which comprises a shell 1, wherein the bottom end of the shell 1 is connected with a pencil cover 2, a pin 3 is fixed on the pencil cover 2, the pencil cover 2 can be fixed on clothes through the pin 3 when in use, then the test pencil is taken down on the pencil cover 2 when in need, when not in need of use, the test pencil is inserted back into the pencil cover 2, the use of the test pencil can be more convenient, the test pencil can be more portable, the magnetic attraction between the pencil cover 2 and the shell 1 is fixed, a spacer 4 is arranged in the middle part of the shell 1, the spacer 4 is a safety resistor, an extension sleeve 5 is arranged at the bottom of the shell 1, a pencil head 6 is connected in the extension sleeve 5, a safety telescopic structure is arranged between the bottom end of the spacer 4 and the extension sleeve 5, a first spring 7 is arranged at the top end of the spacer 4, a neon bulb 8 is arranged at the top end of the first spring 7, a second spring 9 is arranged at the top end of the neon bulb 8, a metal cover 10 is connected with the top end of the shell 1 in a threaded manner, and the second spring 9 is connected with the metal cover 10.

The magnetic attraction fixation between the pen cap 2 and the shell 1 comprises a magnetic ring 13, the extension sleeve 5 and the shell 1 are fixed through a fixed ring 14, the bottom end of the fixed ring 14 is fixed with the magnetic ring 13, the bottom end of the magnetic ring 13 is tightly attached to the bottom end in the shell 1, the magnetic ring 13 attracts the pen cap 2, when the pen cap 2 is used, after the extension sleeve 5 stretches into the pen cap 2 for a certain distance, the magnetic ring 13 adsorbs the pen cap 2 and adsorbs the shell 1 on the pen cap 2, the pen cap 2 is made of transparent plastic, the top end of the pen cap 2 is made of metal, and the pen cap can be attracted by the magnetic ring 13, and the weight of the pen cap 2 can be lightened by only setting the top end of the pen cap 2 to be made of metal.

The safe telescopic structure comprises a third spring 11, the pen point 6 is slidably connected in the extension sleeve 5, a gap between the pen point 6 and the extension sleeve 5 is not larger than 0.2 mm, shaking caused by overlarge gap between the pen point 6 and the extension sleeve 5 is prevented, the sections of the pen point 6 and the extension sleeve 5 are rectangular, but not round, the pen point 6 and the extension sleeve 5 which are arranged in a square column shape can enable the pen point 6 to slide and simultaneously prevent idling of the pen point 6, the pen point 6 of the test pencil can be telescopic, and torque can be output through handheld rotation, however, the sections of the pen point 6 and the extension sleeve 5 are required to be round and are arranged to reduce sharp edges, the top end of the pen point 6 is connected with a top plate 12, the top plate 12 is made of copper material and is connected with the third spring 11, when the force applied to the pen point 6 is larger than the spring, the pen point 6 is contracted towards the inside of the shell 1, and when the force is not applied to the pen point 6, the pen point 6 is pushed by the spring, so that the pen point 6 can stretch out, and a higher safety effect is achieved, and the body is prevented from being poked or poked.

Technical or scientific terms used in the description of this application should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," "outer," and the like as used in this description are merely used to indicate relative directions or positional relationships, and do not imply that a device or element must have a particular orientation, be configured and operated in a particular orientation, and that the relative positional relationships may be changed when the absolute position of the object being described is changed, and thus should not be construed as limiting the present application. The terms "first," "second," "third," and the like, as used in the description herein, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance to the various components.

The use of the terms "a," "an," or "the" and similar referents in the description of the utility model are not to be construed as limited in number to the precise location of at least one. As used in this description, the terms "comprises," "comprising," or the like are intended to cover an element or article that appears before the term and that is listed after the term and its equivalents, without excluding other elements or articles.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An installation test pencil, includes shell (1), its characterized in that: the pen comprises a pen cover (2) connected with the bottom end of a shell (1), a pin (3) is fixed on the pen cover (2), a spacer (4) is arranged in the middle of the shell (1) and is a safety resistor, an extension sleeve (5) is arranged at the bottom of the shell (1), a pen point (6) is connected in the extension sleeve (5), a safety telescopic structure is arranged between the bottom end of the spacer (4) and the extension sleeve (5), a first spring (7) is arranged at the top end of the spacer (4), neon bulb (8) is arranged at the top end of the first spring (7), a second spring (9) is arranged at the top end of the neon bulb (8), a metal cover (10) is connected with the top end of the shell (1) in a threaded manner, and the second spring (9) is connected with the metal cover (10).

2. The mounting test pencil of claim 1 wherein: the safe telescopic structure comprises a third spring (11), the pen point (6) is connected in the extension sleeve (5) in a sliding mode, a top plate (12) is connected to the top end of the pen point (6), and the top plate (12) is made of copper and is connected with the third spring (11).

3. The mounting test pencil of claim 1 wherein: the magnetic attraction fixing device is characterized in that the magnetic attraction fixing device between the pen cover (2) and the shell (1) comprises a magnetic ring (13), the extending sleeve (5) and the shell (1) are fixed through a fixing ring (14), the bottom end of the fixing ring (14) is fixed with the magnetic ring (13), the bottom end of the magnetic ring (13) is tightly attached to the bottom end in the shell (1), and the magnetic ring (13) attracts the pen cover (2).

4. A mounting test pencil as set forth in claim 3 wherein: the pen cover (2) is made of transparent plastic, and the top end of the pen cover (2) is made of metal and can be attracted by the magnetic ring (13).

5. The mounting test pencil of claim 1 wherein: the gap between the pen point (6) and the extension sleeve (5) is not more than 0.2 mm.

6. The mounting test pencil of claim 1 wherein: the sections of the pen point (6) and the extension sleeve (5) are rectangular, but not circular.