CN217385634U

CN217385634U - Non-contact induction type full-sealed explosion-proof test pencil

Info

Publication number: CN217385634U
Application number: CN202123222794.0U
Authority: CN
Inventors: 张志杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-09-06
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a non-contact induction type full-sealed explosion-proof test pencil, which comprises a shell and a working part arranged in the shell, wherein the shell comprises an insulated sealed explosion-proof shell body, the working part comprises an induction part and a power supply part, the induction part comprises a current induction circuit board arranged in the middle section of the inner side of the insulated sealed explosion-proof shell body and a current induction head arranged at the top end of the inner side of the insulated sealed explosion-proof shell body, the power supply part comprises a wireless charging battery and a circuit connected with the current induction circuit board, the utility model has the advantages that the fully-sealed insulated sealed explosion-proof shell body is adopted as the shell, the internal induction part and the power supply part can be completely isolated from the outside, the current induction head and the current induction circuit board which can induce current without contact are matched as the induction part, and the technical effects of water resistance, explosion resistance and non-contact wireless induction current can be realized, thereby providing a highly safe explosion-proof detection tool for the current detection in special occasions.

Description

Non-contact induction type full-sealed explosion-proof test pencil

Technical Field

The utility model relates to a test pencil, specifically speaking are non-contact induction type totally enclosed explosion-proof test pencil.

Background

At present, the known test pencil structure is formed by connecting a test contact, a current-limiting resistor, a neon tube, a metal spring and a hand contact electrode in series. The test contact is contacted with the tested object, the hand touches the hand touch electrode, when the tested object has relatively high voltage, the neon tube is lighted, which shows that the tested object is electrified. However, the metal housings of many electrical appliances do not carry a shock voltage that is dangerous to the human body, and only indicate that the distributed capacitance and/or the normal resistance induce a potential to ignite the neon tube.

Its inductive head, switch of traditional test pencil and the end that charges are and expose the structure, in case take place to damage and make conducting part expose, carry out the test this moment and can lead to test pencil inner structure short circuit and then lead to the test pencil to damage.

To solve this problem, a test pencil with higher safety performance is needed.

Disclosure of Invention

The purpose of the invention is as follows: the utility model aims to provide a non-contact induction type totally enclosed explosion-proof test pencil to the not enough of prior art.

The technical scheme is as follows: a non-contact induction type totally enclosed explosion-proof test pencil, including shell and the work portion of installation in the shell, the shell includes the explosion-proof shell body of insulating seal, the work portion includes response portion and power supply portion, response portion is including installing the electric current induction circuit board in the inboard middle section of explosion-proof shell body of insulating seal and setting up the electric current induction head on the inboard top of explosion-proof shell body of insulating seal, power supply portion is including connecting wireless rechargeable battery and the circuit on electric current induction circuit board.

Preferably, the current sensing circuit board comprises a direct current and alternating current sensing circuit board.

Preferably, the current sensing circuit board is connected with a highlight indicating lamp bead.

Preferably, the power supply unit further includes a magnetic non-contact switch connected to the wireless rechargeable battery and the circuit.

The utility model discloses compare and have following beneficial effect in prior art: adopt the explosion-proof shell body of totally enclosed insulation enclosure as the shell, can completely cut off inside response portion and power supply portion with external, the cooperation can be contactless induced-current's current induction head and current induction circuit board as the response portion, can realize waterproof, explosion-proof and contactless wireless induced-current's technological effect to the current detection for special occasion provides a high safe explosion-proof detection instrument.

Drawings

Fig. 1 is a schematic structural view of a non-contact induction type fully-sealed explosion-proof test pencil of the present invention.

In the figure: 1. an insulated closed explosion-proof outer shell; 2. a sensing part; 21. a current sensing circuit board; 22. a current sensing head; 23. a highlight indication lamp bead; 3. a power supply unit; 31. a wireless rechargeable battery and circuit; 32. a magnetic non-contact switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for convenience in describing and simplifying the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The technical solution of the present invention will be described in detail below with specific examples. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Referring to fig. 1, a non-contact induction type totally enclosed explosion-proof test pencil, including shell and the work portion of installation in the shell, the shell includes insulating explosion-proof shell body 1 that seals, and the work portion includes response portion 2 and power supply portion 3, and response portion 2 is including installing the current induction circuit board 21 in insulating explosion-proof shell body 1 inboard middle section and setting up the current induction head 22 on insulating explosion-proof shell body 1 inboard top that seals, and power supply portion 3 is including connecting wireless rechargeable battery and the circuit 31 on current induction circuit board 21. The technical scheme has the advantages that the fully-sealed insulated closed explosion-proof outer shell 1 is used as the shell, the internal induction part 2 and the power supply part 3 can be completely isolated from the outside, the current induction head 22 capable of inducing current in a contactless manner and the current induction circuit board 21 are matched to be used as the induction part 2, the technical effects of water resistance, explosion resistance and contactless wireless induction current can be achieved, and therefore a highly-safe explosion-proof detection tool is provided for current detection in special occasions.

Specifically, the insulating sealed explosion-proof outer shell 1 is made of non-metallic non-conductor materials such as plastics and carbon fibers, and the components such as an internal live circuit and a battery are completely sealed inside the insulating sealed explosion-proof outer shell and isolated from the outside, so that the insulating sealed explosion-proof outer shell plays roles in insulation, water resistance and complete explosion resistance.

The wireless charging battery and the circuit 31 can supplement electric energy through an external wireless charging component, wireless charging is achieved, and meanwhile, after the shell of the internal battery is completely sealed, the internal battery is completely isolated from the outside, and the explosion-proof requirement is met.

The current sensing circuit board 21 includes a direct current and alternating current sensing circuit board 21. The direct current and alternating current induction circuit board 21 is a complex current induction circuit board 21, and can test both direct current and alternating current.

The current induction circuit board 21 is connected with a highlight indication lamp bead 23. The operating state of highlight instruction lamp pearl 23 can show whether electric current induction head 22 inducts electric current, if test pencil apart from near 0 to 5 centimetres scope of conductor, under the condition of non-contact, if have direct current or alternating current in the induction conductor start highlight instruction lamp pearl 23 to begin the highlight and show, if have not electric current in the induction conductor under the non-contact condition then highlight instruction lamp pearl 23 does not show.

The power supply unit 3 further includes a magnetic non-contact switch 32 connected to the wireless rechargeable battery and the circuit 31. Because the circuit board and the battery and other charged components are completely sealed in the test pencil by the non-metal material, the circuit is started and closed by the non-contact magnetic switch in the non-metal material, the magnetic non-contact switch 32 is also sealed in the non-metal material shell, namely when the magnetic non-contact induction of the magnet assembly is generated outside the shell, the magnetic non-contact switch 32 is closed to conduct and start the circuit board, so that the test pencil works normally; when the non-contact external magnetic induction of the magnet is not available, the internal magnetic non-contact switch 32 is disconnected and stops the circuit board to work, and the purpose of controlling the test pencil circuit to start and stop can be achieved by configuring the non-contact magnetic non-contact switch 32.

In the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacting the first feature and the second feature or indirectly contacting the first feature and the second feature through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lower level than the second feature. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example.

Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a non-contact induction formula totally enclosed explosion-proof test pencil, includes shell and the work portion of installation in the shell, its characterized in that: the shell includes the explosion-proof shell body of insulating seal, the work portion includes response portion and power supply portion, response portion is including installing the current induction circuit board in the inboard middle section of explosion-proof shell body of insulating seal and setting up the current induction head on the inboard top of explosion-proof shell body of insulating seal, power supply portion is including connecting wireless rechargeable battery and the circuit on current induction circuit board.

2. The non-contact induction type fully-sealed explosion-proof test pencil according to claim 1, characterized in that: the current sensing circuit board comprises a direct current and alternating current sensing circuit board.

3. The non-contact induction type fully-sealed explosion-proof test pencil according to claim 1, characterized in that: the current induction circuit board is connected with a high-brightness indicating lamp bead.

4. The non-contact induction type fully-sealed explosion-proof test pencil according to claim 1, characterized in that: the power supply part also comprises a magnetic non-contact switch connected with the wireless rechargeable battery and the circuit.