CN211958065U

CN211958065U - Three-core sealed power supply extension line

Info

Publication number: CN211958065U
Application number: CN202020369873.0U
Authority: CN
Inventors: 周吉
Original assignee: Ningbo Xuanshi Electronics Co ltd
Current assignee: Ningbo Xuanshi Electronics Co ltd
Priority date: 2020-03-21
Filing date: 2020-03-21
Publication date: 2020-11-17
Anticipated expiration: 2030-03-21

Abstract

The utility model relates to a three-core sealing power supply extension line, including the casing, set up copper core subassembly in the casing, set up in the end cover outside the casing and the power cord of being connected with the copper core subassembly and be located the plug of power cord tip, the casing top is provided with the sealed arch of upwards extending, sealed bellied inner wall has seted up sealed annular, the lateral wall of plug is provided with the sealing ring in the sealed annular, the lateral wall and the compressing tightly of sealed annular of sealing ring. The utility model discloses have the effect that has reduced the power cord and has taken place the probability of short circuit after receiving the water droplet splatter.

Description

Three-core sealed power supply extension line

Technical Field

The utility model belongs to the technical field of the technique of power extension line and specifically relates to a three-core sealed power extension line is related to.

Background

A power extension cord is a cable with multiple conductors for temporary power connections requiring flexibility.

Chinese utility model with an authorization notice number of CN206619733U discloses a power extension cord, which solves the problem that a jack group on the extension cord is easy to be damaged, and the key points of the technical scheme are as follows: the utility model provides a power extension line, includes the wire, connects at the public head of wire wherein one end and connects at the female head of the wire other end, be connected with the plug on the public head, a terminal surface of female head is provided with the jack group, a pot head that the wire is located female head is equipped with the buffer sleeve, the rotation is connected with the protecting plate on the buffer sleeve, be provided with the protection post that is used for sealing the jack group on the protecting plate, it is provided with certain safeguard measure to the jack group, avoids the jack group to receive wearing and tearing destruction, has prolonged power extension line's service life.

However, in the actual use process of the utility model, because in some use occasions, water drops are easy to splash, the power extension line is easy to be penetrated by the water drops in the use process to cause short circuit.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three-core sealed power extension cord has the effect that has reduced the probability that the power cord takes place the short circuit after receiving the water droplet splatter.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a three-core sealing power supply extension line, includes the casing, set up the copper core subassembly in the casing, set up in the end cover in the casing outside and the power cord of being connected with the copper core subassembly and be located the plug of power cord tip, the casing top is provided with the sealed of upwards extending protrudingly, sealed annular has been seted up to sealed bellied inner wall, the lateral wall of plug is provided with the sealing ring in the sealed annular, the lateral wall of sealing ring and the compressing tightly of sealed annular.

Through adopting above-mentioned technical scheme, the plug is when using, in inserting the copper core subassembly in the casing, the sealing ring that is located the plug border imbeds to the seal ring inslot that is located the casing, compresses tightly between sealing ring and the seal ring groove to realize the sealed between plug and the socket, reduced the power extension line and received the probability that takes place the short circuit after the water droplet splatter in the process of using.

The utility model discloses further set up to: the top of casing is provided with a dust cover, one side of dust cover is provided with a flexible connectors, the lateral wall of casing is provided with the erection column, flexible connectors is connected with the erection column.

By adopting the technical scheme, the dust cover is arranged at the top of the shell, and the dust cover is connected with the shell by adopting the flexible connecting piece, so that the dust cover can be connected with the shell by the flexible connecting piece, and the probability of losing the dust cover in the using process is reduced; when the power extension cord does not need to be used, the dustproof cover can be covered on the shell of the power extension cord, and the probability that the power extension cord is damaged due to the fact that external impurities enter the shell on the power extension cord when the power extension cord does not need to be used is reduced.

The utility model discloses further set up to: the lateral wall of erection column is provided with a location and swells, set up the joint through-hole that corresponds with the location is protruding on the flexible connectors.

Through adopting above-mentioned technical scheme, it is protruding to set up the location at the lateral wall of erection column, and the direct joint of joint through-hole on the flexonics spare is in being located the location on the erection column protruding, has made things convenient for the installation between flexonics spare and the casing, and makes and to dismantle between dust cover and the supply socket, has made things convenient for the dust cover to take place to damage or change the dust cover when ageing.

The utility model discloses further set up to: and a mounting groove is formed in the side wall of the clamping through hole.

Through adopting above-mentioned technical scheme, set up mounting groove at the lateral wall of joint through-hole, when the joint through-hole card is gone into the location protruding in, the flexible connectors who is located the mounting groove both sides takes place to warp for the big or small grow of joint through-hole, thereby further made things convenient for the installation between flexible connectors and the casing.

The utility model discloses further set up to: the location is protruding towards one side of joint through-hole is provided with the direction inclined plane, the direction inclined plane by the orientation one side of casing is kept away from one side of casing and is fixed a position protruding inside slope.

By adopting the technical scheme, the installation between the flexible connecting piece and the shell is further facilitated.

The utility model discloses further set up to: the plug is the three-phase plug, the three-phase plug has fire line post, zero line post and ground connection post, the copper core subassembly includes first copper, second copper and third copper, the structure of first copper and third copper is the same, first copper has a first mounting panel and circumference interval and sets up two at least clamping parts on first mounting panel, the bottom of clamping part is provided with the connecting portion of being connected with first mounting panel, the second copper has second mounting panel and circumference interval and sets up the spliced pole on the second mounting panel, seted up the confession on the spliced pole the ground connection jack of ground connection post male of plug tip.

Through adopting above-mentioned technical scheme, simplified the structure of copper core subassembly, it is more convenient to install.

The utility model discloses further set up to: the clamping part is provided with a first clamping plate connected with the connecting part and a second clamping plate arranged on one side of the first clamping plate, the first clamping plate and the second clamping plate are identical in structure, the first clamping plate and the second clamping plate are arranged in a V shape, and the first clamping plate is connected with the second clamping plate.

Through adopting above-mentioned technical scheme, the bonding strength between clamping part and the plug has been improved.

The utility model discloses further set up to: the first clamping plate and the second clamping plate are far away from one side of the first mounting plate, guide parts are arranged on one side of the first clamping plate, and the guide parts incline towards directions deviating from each other.

Through adopting above-mentioned technical scheme, further made things convenient for the installation between clamping part and the plug.

To sum up, the utility model discloses a beneficial technological effect does:

the sealing protrusion and the sealing ring groove are arranged, so that the probability of short circuit of the power line after the power line is splashed by water drops is reduced;

by arranging the connecting piece, the dust cover has the effect of reducing the probability of losing the dust cover;

through setting up erection column and joint through-hole, have and make and dismantle between dust cover and the casing, take place ageing or not hard up after the dust cover, can carry out the effect of changing to the dust cover.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the explosion structure of the present invention.

Fig. 3 is an exploded view of the copper core assembly.

In the figure, 1, a housing; 11. a sealing protrusion; 12. sealing the ring groove; 13. mounting a column; 131. a positioning protrusion; 132. a guide slope; 14. a dust cover; 15. a flexible connector; 151. clamping the through hole; 152. installing a groove; 2. a copper core assembly; 21. a first copper plate; 211. a first mounting plate; 212. a first clamping plate; 2121. a guide portion; 213. a second clamping plate; 214. a connecting portion; 215. a first wiring portion; 22. a second copper plate; 221. a second mounting plate; 222. inserting the column; 223. a ground jack; 224. an extension plate; 225. a second wiring portion; 23. a third copper plate; 3. sealing the end cap; 4. a power line; 5. a plug; 51. a seal ring; 52. a fire wire column; 53. a neutral wire post; 54. and a grounding column.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the three-core sealed power extension cord includes a housing 1, a copper core assembly 2 disposed in the housing 1, a sealing end cap 3 disposed outside the housing 1, a power cord 4 connected to the copper core assembly 2, and a plug 5 disposed at an end of the power cord 4. The outer side wall of the plug 5 is provided with a sealing ring 51 in the sealing ring groove 12, and the side wall of the sealing ring 51 is pressed against the sealing ring groove 12. The plug 5 is a three-phase plug 5, the three-phase plug 5 having a fire leg 52, a neutral leg 53 and a ground leg 54.

The top of the housing 1 is provided with a sealing protrusion 11 extending upwards, a sealing ring groove 12 is formed in the inner wall of the sealing protrusion 11, the side wall of the housing 1 is provided with a mounting column 13, the side wall of the mounting column 13 is provided with a positioning protrusion 131, one side of the positioning protrusion 131 facing the clamping through hole 151 is provided with a guide inclined plane 132, and the guide inclined plane 132 inclines from one side facing the housing 1 to one side far away from the housing 1 to the inside of the positioning protrusion 131.

The top of the shell 1 is provided with a dust cover 14, one side of the dust cover 14 is integrally provided with a flexible connecting piece 15, the flexible connecting piece 15 is provided with a clamping through hole 151 corresponding to the positioning protrusion 131, the side wall of the clamping through hole 151 is provided with an installation groove 152, during installation, the clamping through hole 151 is aligned to the installation column 13, and the flexible connecting piece 15 is directly clamped into the installation column 13.

Referring to fig. 2 and 3, the copper core assembly 2 includes a first copper plate 21, a second copper plate 22, and a third copper plate 23. The first copper 21 and the third copper 23 are identical in structure, the first copper 21 is provided with a first mounting plate 211 and three clamping portions arranged on the first mounting plate 211 at intervals in the circumferential direction, the bottom of each clamping portion is provided with a connecting portion 214 connected with the first mounting plate 211, the bottom of the first mounting plate 211 is provided with a first wiring portion 215, and the first wiring portion 215 and the three clamping portions are arranged at intervals in the circumferential direction along the edge of the first mounting plate 211.

The second copper plate 22 is provided with a second mounting plate 221 and three plugging columns 222 arranged on the second mounting plate 221 at intervals in the circumferential direction, an included angle between every two adjacent plugging columns 222 is 90 degrees, a grounding jack 223 for inserting the grounding column 54 at the end of the plug 5 is formed in each plugging column 222, an extension plate 224 is arranged between each plugging column 222 and the second mounting plate 221, the extension plates 224 are perpendicular to the clamping portions, the plugging columns 222 are fixed on one sides, far away from the second mounting plate 221, of the extension plates 224, the bottom of the second mounting plate 221 is provided with a second wiring portion 225, the second wiring portion 225 is parallel to the first wiring portion 215, and interference does not occur.

The first copper plate 21, the second copper plate 22 and the third copper plate 23 are arranged at intervals along the height direction of the plug 5, wherein the clamping parts and the connecting plates on the first copper plate 21 and the third copper plate 23 are overlapped with each other, and the plugging columns 222 on the second copper plate 22 are parallel to the clamping parts to form three-phase sockets for plugging the three-phase plug 5.

The clamping part is provided with a first clamping plate 212 connected with the connecting part 214 and a second clamping plate 213 arranged on one side of the first clamping plate 212, the first clamping plate 212 and the second clamping plate 213 are identical in structure, the first clamping plate 212 and the second clamping plate 213 are both arranged in a V shape, the first clamping plate 212 and the second clamping plate 213 are connected, one sides, far away from the first mounting plate 211, of the first clamping plate 212 and the second clamping plate 213 are both provided with a guide part 2121, and the two guide parts 2121 incline towards directions deviating from each other.

The use principle of the above embodiment is as follows: when the plug 5 is used, the plug is inserted into the copper core assembly 2 in the shell 1, the sealing ring 51 positioned at the edge of the plug 5 is embedded into the sealing ring groove 12 positioned on the shell 1, and the sealing ring 51 and the sealing ring groove 12 are compressed, so that the sealing between the plug 5 and a socket is realized, and the probability of short circuit after the power extension line is splashed by water drops in the using process is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a three-core sealed power extension cord which characterized in that: including casing (1), set up copper core subassembly (2) in casing (1), set up in sealed end cover (3) in the casing (1) outside and power cord (4) be connected with copper core subassembly (2) and be located plug (5) of power cord (4) tip, casing (1) top is provided with the sealed protruding (11) of upwards extending, sealed annular (12) have been seted up to the inner wall of sealed protruding (11), the lateral wall of plug (5) is provided with sealing ring (51) in sealed annular (12), the lateral wall of sealing ring (51) and the compressing tightly of sealed annular (12).

2. The three-core sealed power extension cord of claim 1, wherein: the top of casing (1) is provided with a dust cover (14), one side of dust cover (14) is provided with a flexible connectors (15), the lateral wall of casing (1) is provided with erection column (13), flexible connectors (15) are connected with erection column (13).

3. The three-core sealed power extension cord of claim 2, wherein: the lateral wall of erection column (13) is provided with a location and protrudes (131), flexible connectors (15) are last to have seted up joint through-hole (151) that correspond with location protrusion (131).

4. The three-core sealed power extension cord of claim 3, wherein: a mounting groove (152) is formed in the side wall of the clamping through hole (151).

5. The three-core sealed power extension cord of claim 4, wherein: the locating protrusion (131) faces towards one side of the clamping through hole (151) and is provided with a guide inclined plane (132), and the guide inclined plane (132) inclines towards the inner part of the locating protrusion (131) from one side of the shell (1) to the side far away from the shell (1).

6. The three-core sealed power extension cord of claim 1, wherein: the plug (5) is a three-phase plug (5), the three-phase plug (5) is provided with a fire wire column (52), a zero wire column (53) and a grounding column, the copper core component (2) comprises a first copper plate (21), a second copper plate (22) and a third copper plate (23), the first copper plate (21) and the third copper plate (23) have the same structure, the first copper plate (21) is provided with a first mounting plate (211) and at least two clamping parts which are circumferentially arranged on the first mounting plate (211) at intervals, the bottom of the clamping part is provided with a connecting part (214) connected with a first mounting plate (211), the second copper plate (22) is provided with a second mounting plate (221) and plug-in columns (222) which are arranged on the second mounting plate (221) at intervals in the circumferential direction, the plug-in post (222) is provided with a grounding jack (223) for the grounding post at the end part of the plug (5) to be inserted into.

7. The three-core sealed power extension cord of claim 6, wherein: the clamping part is provided with a first clamping plate (212) connected with the connecting part (214) and a second clamping plate (213) arranged on one side of the first clamping plate (212), the structures of the first clamping plate (212) and the second clamping plate (213) are the same, the first clamping plate (212) and the second clamping plate (213) are both arranged in a V shape, and the first clamping plate (212) is connected with the second clamping plate (213).

8. The three-core sealed power extension cord of claim 7, wherein: one side of the first clamping plate (212) and one side of the second clamping plate (213) far away from the first mounting plate (211) are both provided with guide parts (2121), and the guide parts (2121) incline towards the direction of mutual deviation.