CN110994239A

CN110994239A - Main circuit safety plug

Info

Publication number: CN110994239A
Application number: CN201911372159.5A
Authority: CN
Inventors: 黄国永; 朱其军; 赵志维; 王显勤
Original assignee: GUANGDONG CHANGDIAN ELECTRICAL SET EQUIPMENT CO LTD
Current assignee: GUANGDONG CHANGDIAN ELECTRICAL SET EQUIPMENT CO LTD
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-04-10
Anticipated expiration: 2039-12-27
Also published as: CN110994239B

Abstract

The invention provides a main circuit safety plug, relating to the technical field of electrical equipment, comprising an outer sleeve, wherein two inner frames are arranged in the outer sleeve, the two inner frames are same in size and shape and are oppositely arranged, a positioning bracket is respectively arranged in the two inner frames and is in sliding connection with the inner frames, two pin copper sheets are arranged between the two inner frames and are in sliding connection with the inner frames, through the design of a spring steel sheet, the invention not only protects the pin copper sheets, but also ensures that the pin copper sheets can be tightly fixed in a socket without easy slipping, ensures the power consumption safety, ensures the thickness of the punched copper sheets is uniform, is smooth and transited, has no burrs, avoids the occurrence of the safety problem of the plug caused by surge to a certain extent, and avoids the phenomenon of pin blackening due to tin plating on the surface of a copper bar, and has symmetrical riveting pins, the socket is coated with proper amount of electric power compound grease, and the pins are not easy to be dislocated.

Description

Main circuit safety plug

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a safety plug of a main circuit.

Background

Along with the development of society and the progress of science and technology, the living standard of people also improves, various electrical equipment have also gradually become people's daily life leisure and the instrument commonly used of work, and electrical equipment's use needs circular telegram, and plug and socket are one kind of electrician's equipment commonly used in people's daily life and work, and when using electricity, insert the plug in the jack of socket, after using up, pull out the plug from the socket again can, comparatively simple and convenient. Especially in the job site of some building sites, carpenters, welders, steel bar workers, concrete workers and the like all need to use electricity when using required building tools, the electricity consumption time of the carpenters, the welders, the steel bar workers, the concrete workers and the like are not uniform, when the carpenters need to use electricity, the electricians are required to specially wire the electricians, the workload of the electricians is large, the wiring process is complicated, the working efficiency is influenced and the like, the problem can be well solved when the plug and the socket are used in the building site, as long as the socket is kept electrified, and the plug is plugged in the use process.

Chinese patent No. CN201821229882.9 discloses a safety plug with a thermistor, relating to the technical field of safety plugs and including: the plug comprises a plug foot part, a bracket cover and a thermistor, wherein the plug foot part is fixed at the bottom of the bracket cover and comprises a plug foot plate and a plug foot, the thermistor is arranged between the plug foot plate and the bracket cover, and the thermistor is used for detecting the temperature of the safety plug; the safety plug with the thermistor also comprises a cable part, wherein a power line and a signal line are arranged in the cable part, the power line is used for connecting the plug pins, and the signal line is used for connecting the thermistor; the safety plug with the thermistor of the utility model can sensitively sense the pins at the lower part of the pin board and carry out overheat protection by arranging the thermistor at the upper part of the pin board, and simultaneously, the thermistor and the signal wire are respectively installed in a mode of fixedly welding the upper end and the lower end of the pin board by inserting the pin into the bracket cover, thereby not only facilitating the installation but also ensuring the firmness and reliability of the installation; the shell is further directly formed by injection molding.

However, the above patent still has problems in that the plug is blackened after a long time use and the pins are easily dislocated.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a main circuit safety plug, which solves the problems that the plug blackens after being used for a long time and the pins are easy to misplace.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a main circuit safety plug, includes the overcoat, be equipped with two inner tower in the overcoat, and two inner tower size and shape are the same, and relative establishment, respectively be equipped with a locating support in two inner tower, and locating support and inner tower sliding connection, be equipped with two between two inner tower and participate in the copper sheet, and participate in copper sheet and inner tower sliding connection.

Preferably, the bottom surface of the inner frame is fixed with spring steel sheets, the two spring steel sheets are the same in size and shape and are oppositely arranged, two grooves which are the same in size and circular are formed in the inner wall of the inner frame, the grooves are blind grooves, a first elastic sheet and a second elastic sheet are respectively arranged in the two grooves of the inner frame, and one side, far away from the inner frame, of the first elastic sheet and the second elastic sheet is abutted to the side surface of the positioning support.

Preferably, the positioning threading needle is nested around the inner frame, the positioning threading needle is in sliding connection with the inner frame, and the inner frame penetrates through the outer sleeve and is in sliding connection with the outer sleeve.

Preferably, a transverse rectangular notch is formed in the inner frame, the positioning support is L-shaped, and the short edge of the positioning support is embedded in the rectangular notch in the inner frame and completely matched with the rectangular notch.

Preferably, the side surface of the inner frame is provided with a square notch, the positioning threading needle simultaneously penetrates through the square notch of the inner frame, and the square notch of the inner frame is completely matched with the positioning threading needle.

Preferably, the side surface of the spring steel sheet is tightly attached to the pin copper sheet, and the radius of the bottom end of the spring steel sheet is 10 mm.

The working principle is as follows: when the safety plug is used, the pin copper sheet is slid in the positioning support, the bottom end of the pin copper sheet is exposed out of the spring steel sheet, the pin copper sheet and the spring steel sheet are inserted into the socket, the plug is connected with electricity, due to the existence of tension of the spring steel sheet, the spring steel sheet and the pin copper sheet are clamped in the socket and are not prone to slipping, the copper sheet in the plug after stamping is even in thickness, smooth and transitional, free of burrs, the occurrence of plug safety problems caused by surges is avoided to a certain extent, the surface of the copper bar is plated with tin, the plated layer is good, the phenomenon that the pin is blackened is avoided, the pin is symmetrically riveted, a proper amount of electric power compound grease is coated at the socket, and the pin is not.

(III) advantageous effects

The invention provides a main circuit safety plug. The method has the following beneficial effects:

1. according to the invention, through the design of the spring steel sheet, the pin copper sheet is protected, and meanwhile, the pin copper sheet can be tightly fixed in the socket and cannot easily slip off, so that the power utilization safety is ensured.

2. According to the invention, the stamped copper sheet is uniform in thickness, smooth and transitional, and free of burrs, so that the safety problem of the plug caused by surge is avoided to a certain extent.

3. According to the invention, the tin plating is carried out on the surface of the copper bar, the plating layer is good, the phenomenon that the pins are blackened is avoided, the pins are symmetrically riveted, and the proper amount of electric power compound grease is coated at the socket, so that the pins are not easy to misplace.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a cross-sectional view of the present invention;

fig. 5 is an exploded view of the present invention.

Wherein, 1, the pin is a copper sheet; 2. a spring steel sheet; 3. positioning the bracket; 4. a first spring plate; 5. a second elastic sheet; 6. a jacket; 7. an inner frame; 8. and positioning the puncture needle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

The first embodiment is as follows:

as shown in fig. 1-5, an embodiment of the present invention provides a main circuit safety plug, which includes an outer sleeve 6, two inner frames 7 are disposed in the outer sleeve 6, the two inner frames 7 have the same size and shape and are oppositely disposed, a spring steel sheet 2 is fixed on the bottom surface of the inner frame 7, the two spring steel sheets 2 have the same size and shape and are oppositely disposed, two circular grooves having the same size are disposed on the inner wall of the inner frame 7, the grooves are blind grooves, a first spring sheet 4 and a second spring sheet 5 are respectively disposed in the two grooves of the inner frame 7, one side of the first spring sheet 4 and the second spring sheet 5 far away from the inner frame 7 is abutted against the side surface of a positioning bracket 3, a positioning penetrating needle 8 is nested around the inner frame 7, the positioning penetrating needle 8 is slidably connected with the inner frame 7, the inner frame 7 penetrates through the outer sleeve 6 and is slidably connected with the outer sleeve 6, a positioning bracket 3 is disposed in each of the two inner frames 7, and the positioning, be equipped with two between two inner tower 7 and participate in copper sheet 1, and participate in copper sheet 1 and inner tower 7 sliding connection, horizontal rectangle breach has been seted up to inner tower 7 inside, 3 types of L types of locating support, and the minor face of locating support 3 inlays in the inside rectangle breach of inner tower 7 and agrees with completely with the rectangle breach, square notch has been seted up to inner tower 7 side, and fix a position the square breach that interior frame 7 was run through simultaneously to needle 8, and the square breach of inner tower 7 agrees with completely with the needle 8 of location, 2 sides of spring steel sheet with participate in copper sheet 1 and hug closely, and the radius of 2 bottoms of spring steel sheet is 10 mm.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. A main circuit safety plug comprises an outer sleeve (6), and is characterized in that: the novel multifunctional socket is characterized in that two inner frames (7) are arranged in the outer sleeve (6), the two inner frames (7) are identical in size and shape and are oppositely arranged, one positioning support (3) is arranged in each of the two inner frames (7), the positioning supports (3) are connected with the inner frames (7) in a sliding mode, two pin copper sheets (1) are arranged between the two inner frames (7), and the pin copper sheets (1) are connected with the inner frames (7) in a sliding mode.

2. A primary circuit safety plug as claimed in claim 1, wherein: the spring steel sheet (2) is fixed on the bottom surface of the inner frame (7), the two spring steel sheets (2) are same in size and shape and are oppositely arranged, two grooves which are same in size and circular are formed in the inner wall of the inner frame (7) and are blind grooves, a first elastic sheet (4) and a second elastic sheet (5) are arranged in the two grooves of the inner frame (7) respectively, and one side, far away from the inner frame (7), of the first elastic sheet (4) and the second elastic sheet (5) is abutted to the side surface of the positioning support (3).

3. A primary circuit safety plug as claimed in claim 1, wherein: the locating threading needle (8) is nested around the inner frame (7), the locating threading needle (8) is connected with the inner frame (7) in a sliding mode, and the inner frame (7) penetrates through the outer sleeve (6) and is connected with the outer sleeve (6) in a sliding mode.

4. A primary circuit safety plug as claimed in claim 1, wherein: horizontal rectangle breach has been seted up to inner tower (7) inside, locating support (3) type L type, and the minor face of locating support (3) inlays in the rectangle breach of inner tower (7) inside and totally agrees with the rectangle breach.

5. A primary circuit safety plug as claimed in claim 1, wherein: the side surface of the inner frame (7) is provided with a square notch, the positioning penetrating needle (8) simultaneously penetrates through the square notch of the inner frame (7), and the square notch of the inner frame (7) is completely matched with the positioning penetrating needle (8).

6. A primary circuit safety plug as claimed in claim 1, wherein: the side surface of the spring steel sheet (2) is tightly attached to the pin copper sheet (1), and the radius of the bottom end of the spring steel sheet (2) is 10 mm.