CN216773746U

CN216773746U - Two-phase three-phase random conversion plug with protection function

Info

Publication number: CN216773746U
Application number: CN202123253249.8U
Authority: CN
Inventors: 黄慧莹; 陈荣华; 林梅樱
Original assignee: Shenzhen Dingchuang Electronic Co ltd
Current assignee: Shenzhen Dingchuang Electronic Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-17
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a two-phase three-phase random conversion plug with a protection function, which comprises a plug shell, wherein two sides inside the plug shell are connected with a shaft body, a plug-in connector is fixed outside the shaft body, two-phase plug pins are fixed on the upper surface of the plug-in connector, three-phase plug pins are fixed in front of the plug-in connector, a pressing telescopic bolt is arranged on the left side of the back surface of the plug shell, a two-phase opening is arranged on the upper part of the front surface of the plug shell, an upper elastic silica gel strip is arranged on the inner side of the two-phase opening, an upper rubber baffle is connected below the upper elastic silica gel strip, a three-phase opening is arranged on the lower part of the front surface of the plug shell, a lower high elastic silica gel strip is arranged on the inner side of the three-phase opening, and a lower rubber baffle is connected above the lower elastic silica gel strip; the two-phase plug and the three-phase plug can be mutually and randomly converted and fixed, and have high protection effects of dust prevention, water prevention, electric leakage prevention and the like.

Description

Two-phase three-phase random conversion plug with protection function

Technical Field

The utility model relates to the technical field of plugs, in particular to a two-phase and three-phase random conversion plug with a protection function.

Background

A Connector (Connector) and a plug (Pin) of an electric appliance, which are called a plug, a household alternating current power supply plug and a socket of a general electronic product, have a male Connector protruding in a rod shape or a copper plate shape, and are physically inserted into a female Connector type power supply socket with a slot or a concave hole.

The plug is usually a two-phase plug or a three-phase plug, so the two-phase plug or the three-phase plug is usually arranged separately by the power socket, but in some special positions, the situation that the two-phase plug or the three-phase plug is not universal is often encountered, so that the two-phase plug cannot be inserted into the three-phase socket, or the three-phase plug cannot be inserted into the two-phase socket, and the two-phase plug and the three-phase plug cannot be mutually converted, which brings inconvenience to use.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects that two phases and three phases can not be converted at will and a protection structure is lacked in the prior art, the utility model provides a two-phase and three-phase random conversion plug with a protection function.

The technical scheme provided by the utility model comprises a plug shell, wherein two sides inside the plug shell are connected with a shaft body, a plug-in connector is fixed outside the shaft body, two-phase plug pins are fixed on the upper surface of the plug-in connector, three-phase plug pins are fixed in front of the plug-in connector, a pressing telescopic bolt is arranged on the left side of the back surface of the plug shell, a two-phase opening is arranged on the upper part of the front surface of the plug shell, an upper elastic silica gel strip is arranged on the inner side of the two-phase opening, an upper rubber baffle is connected to the lower surface of the upper elastic silica gel strip, a three-phase opening is arranged on the lower part of the front surface of the plug shell, a lower high elastic silica gel strip is arranged on the inner side of the three-phase opening, and a lower rubber baffle is connected to the upper surface of the lower high elastic silica gel strip.

In order to conveniently fix the shaft body and press the telescopic bolt, a plug shell is arranged, in order to facilitate the rotation of the plug, the two sides of the plug shell are connected with the shaft body, the plug is used for fixing the two-phase pin and the three-phase pin, in order to fix the rotating shaft body, the left side of the back of the plug shell is fixed with the press telescopic bolt, in order to facilitate the rotation of the two-phase pin and the three-phase pin, a two-phase opening and a three-phase opening are arranged, in order to prevent dust and other impurities from entering the plug, an upper high-elasticity silica gel strip and a lower high-elasticity silica gel strip are fixedly arranged at the inner sides of the two-phase opening and the three-phase opening, a strip-shaped opening is arranged at the position where the pin passes through the upper high-elasticity silica gel strip and the lower high-elasticity silica gel strip, in order to prevent dust and other impurities from entering the plug, a rubber baffle is connected below the upper high-elasticity silica gel strip and the upper rubber baffle are at the same level, the upper surface of the lower high-elasticity silica gel strip is connected with a lower rubber baffle, and the lower high-elasticity silica gel strip and the lower rubber baffle are in the same level.

Preferably, in order to conveniently press the telescopic bolt to fix the shaft body, circular holes are formed in the lower portion and the left side of the shaft body, and in order to enable the power line to connect the two-phase pin and the three-phase pin through the plug shell, the inside of the shaft body is arranged to be a hollow structure.

Preferably, in order to make the shaft body rotate more flexibly and prevent dust from entering the plug housing, both sides of the shaft body are provided with sealing bearings, and the sealing bearings are fixed on the inner side of the plug housing.

Preferably, in order to prevent dust from entering the plug housing from the push telescopic bolt, a sealing ring is fixed at the rear of the plug housing, and the push telescopic bolt penetrates through the sealing ring.

Preferably, in order to improve the accuracy of the pressing telescopic bolt penetrating through the circular hole, a bolt fixing sleeve is fixed inside the side surface of the plug housing, and the pressing telescopic bolt penetrates through the bolt fixing sleeve.

Preferably, the press telescopic bolt comprises a bolt shell, an inserted bar is arranged on the inner side of the bolt shell and penetrates through the bolt shell, spring pieces are fixed on the upper side and the lower side of the inserted bar, a press spring is arranged on the right side of each spring piece, the left side of each press spring is connected with the corresponding spring piece, the right side of each press spring is connected with the bottom of the bolt shell, and a press head is arranged at the top of the left side of the inserted bar.

Preferably, all be provided with the recess about the inside of bolt shell, the left side of recess is the right angle structure, the right side of recess is outer arc structure.

For fixed inserted bar, be provided with the bolt shell, for fixed axis body rotation prevention, be provided with the inserted bar in the inside of bolt shell, spring leaf, recess and pressing spring are used for the fixed inserted bar that gets into the circular port and make the inserted bar withdraw from the circular port, and the inserted bar is conveniently pressed to the press head.

Preferably, the two-phase pin and the three-phase pin are provided with high-elasticity telescopic sleeves outside, the bottom of the high-elasticity telescopic sleeve is fixed on the plug head, the top of the high-elasticity telescopic sleeve is connected with a dustproof rubber head, and the dustproof rubber head penetrates through the two-phase pin and the three-phase pin.

In order to protect the two-phase pin and the three-phase pin and prevent touch electric leakage, high-elasticity telescopic sleeves are arranged outside the two-phase pin and the three-phase pin, and in order to retract the high-elasticity telescopic sleeves and prevent a plug from entering dust and other sundries after being inserted into a socket to cause poor contact, a dustproof rubber head is connected to the top of the high-elasticity telescopic sleeves.

Compared with the prior art, the utility model has the beneficial effects that:

1. the two-phase pin and the three-phase pin on the plug are mutually converted by arranging the plug shell, the shaft body, the sealing bearing, the plug-in connector, the two-phase pin and the three-phase pin.

2. Through setting up circular port, the fixed cover of bolt, bolt shell, inserted bar, spring leaf, pressing spring, press head and recess, make the plug carry out two-phase participate in and participate in the interconversion back with the three-phase, fix, prevent to rotate at will.

3. By arranging the sealing ring, the high-elasticity silica gel strip, the upper rubber baffle, the lower high-elasticity silica gel strip, the lower rubber baffle, the high-elasticity telescopic sleeve and the dustproof rubber head, the plug has high dustproof, waterproof, anti-creeping and other protection effects.

Drawings

FIG. 1 is a schematic cross-sectional view of a two-phase three-phase optional adaptor plug with protection function according to the present invention;

FIG. 2 is a schematic front view of a two-phase three-phase optional adaptor plug with protection function according to the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic view of a portion of the enlarged structure at B of FIG. 2;

FIG. 5 is a schematic view of a push retractable latch according to the present invention;

FIG. 6 is a schematic view of the position structure of the high elastic force telescopic sleeve and the dustproof rubber head of the present invention;

reference numerals: 1. a plug housing; 2. a shaft body; 21. a circular hole; 22. sealing the bearing; 3. a plug-in connector; 4. two-phase pins; 5. three-phase pins; 6. pressing the telescopic bolt; 61. a seal ring; 62. a bolt fixing sleeve; 63. a plug pin housing; 64. inserting a rod; 65. a spring plate; 66. a pressing spring; 67. a pressing head; 68. a groove; 7. two-phase openings; 71. a high elastic silica gel strip; 72. a rubber baffle is arranged; 8. a three-phase opening; 81. a high elastic silica gel strip is arranged; 82. a lower rubber baffle plate; 9. a high-elasticity telescopic sleeve; 10. dustproof rubber head.

Detailed Description

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; moreover, modifications and variations will occur to those skilled in the art, in light of the above teachings, and all such modifications and variations are intended to be included within the present application; and the scope of protection of the appended claims.

In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific embodiments; preferred embodiments of the present invention are shown in the drawings; this invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

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

Example 1: as shown in fig. 1, 2, 3 and 4, in order to solve the defects that two-phase and three-phase cannot be converted at will and a protective structure is lacked in the prior art, the utility model provides a two-phase and three-phase random conversion plug with a protective function, which comprises a plug shell 1, wherein two sides inside the plug shell 1 are connected with a shaft body 2, a plug 3 is fixed outside the shaft body 2, two-phase pins 4 are fixed on the plug 3, three-phase pins 5 are fixed in front of the plug 3, a pressing telescopic pin 6 is arranged on the left side of the back of the plug shell 1, a two-phase opening 7 is arranged on the upper part of the front of the plug shell 1, an upper elastic silica gel strip 71 is arranged on the inner side of the two-phase opening 7, an upper rubber baffle 72 is connected below the upper elastic silica gel strip 71, a three-phase opening 8 is arranged on the lower part of the front of the plug shell 1, the inboard of three-phase opening 8 is provided with down high elasticity silica gel strip 81, the higher authority of low high elasticity silica gel strip 81 is connected with down rubber baffle 82.

In order to fix the shaft body 2 and the press telescopic bolt 6 conveniently, a plug shell 1 is provided, in order to facilitate the rotation of the plug 3, the shaft body 2 is connected with two sides of the plug shell 1, the plug 3 is used for fixing the two-phase pin 4 and the three-phase pin 5, in order to fix the rotating shaft body 2, the press telescopic bolt 6 is fixed on the left side of the back of the plug shell 1, in order to facilitate the rotation of the two-phase pin 4 and the three-phase pin 5, a two-phase opening 7 and a three-phase opening 8 are provided, in order to prevent dust and other impurities from entering the inside of the plug, a high elastic silica gel strip 71 and a low high elastic silica gel strip 81 are fixedly arranged on the inner sides of the two-phase opening 7 and the three-phase opening 8, a strip-shaped opening is arranged at the position where the pin passes through the high elastic silica gel strip 71 and the low elastic silica gel strip 81, in order to not influence the rotation of the plug 3 and prevent dust and other impurities from entering the inside of the plug, a rubber baffle 72 is connected below the high elastic silica gel strip 71, the high elastic silica gel strip 71 and the upper rubber baffle 72 are at the same level, the lower rubber baffle 82 is connected to the upper surface of the lower high elastic silica gel strip 81, and the lower high elastic silica gel strip 81 and the lower rubber baffle 82 are at the same level.

Preferably, in order to facilitate the pressing of the telescopic latch 6 to fix the shaft body 2, a circular hole 21 is formed at both the lower portion and the left side of the shaft body 2, and in order to allow the power line to connect the two-phase pin 4 and the three-phase pin 5 through the plug housing 1, the inside of the shaft body 2 is formed in a hollow structure.

Preferably, in order to make the shaft body 2 rotate more flexibly and prevent dust from entering into the plug housing 1, both sides of the shaft body 2 are provided with a sealing bearing 22, and the sealing bearing 22 is fixed on the inner side of the plug housing 1.

Preferably, in order to prevent dust from entering the plug housing 1 from the push telescopic latch 6, a sealing ring 61 is fixed on the rear surface of the plug housing 1, and the push telescopic latch 6 penetrates through the sealing ring 61.

Preferably, in order to improve the accuracy of pressing the telescopic bolt 6 through the circular hole 21, a bolt fixing sleeve 62 is fixed inside the side surface of the plug housing 1, and the pressing telescopic bolt 6 passes through the bolt fixing sleeve 62.

When two-phase pin is needed to be used, the pressing telescopic pin 6 is pressed down, the pressing telescopic pin 6 is made to withdraw from the circular hole 21, the three-phase pin 5 is rotated downwards by hand, the three-phase pin 5 drives the plug connector 3 to rotate, the plug connector 3 drives the shaft body 2 to rotate in the sealed bearing 22, the three-phase pin 5 penetrates through the lower high-elasticity silica gel strip 81, the lower rubber baffle 82 is folded downwards towards the inner side, meanwhile, the two-phase pin 4 penetrates through the high-elasticity silica gel strip 71, the upper rubber baffle 72 is folded upwards towards the outer side until the surface of the two-phase pin 4 is at the same level with the front surface of the plug shell 1, the high-elasticity silica gel strip 71, the upper rubber baffle 72, the lower high-elasticity silica gel strip 81 and the lower rubber baffle 82 reset, the plug shell 1 is made to be in a closed state, the pressing telescopic pin 6 is pressed down again, and the pressing telescopic pin 6 is made to be inserted into the circular hole 21 of the shaft body 2, and the shaft body 2 is fixed.

In embodiment 2, as shown in fig. 5, the pressing telescopic bolt 6 includes a bolt housing 63, an insertion rod 64 is disposed inside the bolt housing 63, the insertion rod 64 penetrates through the bolt housing 63, spring strips 65 are fixed to upper and lower sides of the insertion rod 64, a pressing spring 66 is disposed on a right side of the spring strip 65, a left side of the pressing spring 66 is connected to the spring strip 65, a right side of the pressing spring 66 is connected to a bottom of the bolt housing 63, and a pressing head 67 is disposed on a top of a left side of the insertion rod 64.

Preferably, the upper and lower surfaces of the inside of the bolt housing 63 are both provided with a groove 68, the left side of the groove 68 is in a right-angle structure, and the right side of the groove 68 is in an outer arc structure.

When the shaft body 2 needs to be fixed, the pressing head 67 is pressed down, the pressing head 67 drives the inserted link 64 to move, the spring piece 65 on the inserted link 64 is pushed into the groove 68 and clamps the inserted link 64, the pressing spring 66 is in a compressed state, and the tail end of the inserted link 64 enters the circular hole 21 of the shaft body 2 to fix the shaft body 2; when the shaft body 2 needs to be rotated, the pressing head 67 is pressed again, the pressing head 67 drives the plunger 64 to move, the spring leaf 65 on the plunger 64 is pushed out from the groove 68, the pressing spring 66 is further compressed, at the moment, the pressing head 67 is released, the pressing spring 66 rebounds rapidly, the spring leaf 65 passes through the groove 68 and is clamped on the inner side of the bolt housing 63 in an outer arc shape, and the tail end of the plunger 64 exits from the circular hole 21 of the shaft body 2.

In order to fix the plunger 64, a latch housing 63 is provided, and in order to fix the shaft 2 against rotation, a plunger 64 is provided inside the latch housing 63, a spring plate 65, a groove 68 and a pressing spring 66 are used to fix the plunger 64 entering the circular hole 21 and to make the plunger 64 exit the circular hole 21, and a pressing head 67 facilitates pressing the plunger 64.

In embodiment 3, as shown in fig. 6, high-elasticity telescopic sleeves 9 are disposed outside the two-phase pin 4 and the three-phase pin 5, the bottom of the high-elasticity telescopic sleeve 9 is fixed to the plug 3, and a dustproof rubber head 10 is connected to the top of the high-elasticity telescopic sleeve 9, and the dustproof rubber head 10 penetrates through the two-phase pin 4 and the three-phase pin 5.

When the two-phase pin 4 or the three-phase pin 5 is inserted into the corresponding socket, the panel of the socket props against the dustproof rubber head 10, the pin continuously enters the jack of the socket downwards, meanwhile, the high-elasticity telescopic sleeve 9 enters the lower side of the dustproof rubber head 10 after being folded until the pin is inserted into the jack of the socket, and the dustproof rubber head 10 is tightly attached between the pin and the jack; when the pin is pulled out, the high-elasticity telescopic sleeve 9 jacks up the dustproof rubber head 10 until the dustproof rubber head 10 completely covers the pin.

In order to protect the two-phase pin 4 and the three-phase pin 5 and prevent touch electric leakage, high-elasticity telescopic sleeves 9 are arranged outside the two-phase pin 4 and the three-phase pin 5, in order to retract the high-elasticity telescopic sleeves 9 and prevent dust and other impurities from entering a socket after a plug is inserted into the socket to cause poor contact, and a dustproof rubber head 10 is connected to the top of the high-elasticity telescopic sleeves 9.

The working principle of the utility model is as follows: when the two-phase pin needs to be used, the pressing head 67 is pressed down, the pressing head 67 drives the insertion rod 64 to move, the spring piece 65 on the insertion rod 64 is pushed out from the groove 68, the pressing spring 66 is further compressed, the pressing head 67 is loosened at the moment, the pressing spring 66 rebounds rapidly, the spring piece 65 passes through the groove 68 and is clamped on the inner side of the bolt shell 63 in an outer arc shape, the tail end of the insertion rod 64 is withdrawn from the circular hole 21 of the shaft body 2, the three-phase pin 5 is rotated downwards by hands, the three-phase pin 5 drives the insertion head 3 to rotate, the insertion head 3 drives the shaft body 2 to rotate in the sealed bearing 22, the three-phase pin 5 passes through the lower high-elasticity silica gel strip 81, the lower rubber baffle 82 is folded downwards in the inner side, the two-phase pin 4 passes through the upper high-elasticity silica gel strip 71, the upper rubber baffle 72 is folded upwards in the outer side until the surface of the two-phase pin 4 is in the same level with the front surface of the plug shell 1, and the upper elasticity silica gel strip 71, Go up rubber baffle 72, lower high elastic force silica gel strip 81 and lower rubber baffle 82 and reset, make plug housing 1 be in the closed condition, press the press head 67 once more, press the press head 67 and drive the inserted bar 64 and remove, spring leaf 65 on the inserted bar 64 is pushed to in the recess 68 to block the inserted bar 64, press the spring 66 and be in compression state, the end of inserted bar 64 gets into in the circular port 21 of axis body 2, fixes axis body 2.

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; further, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.

Claims

1. The utility model provides a take protect function's arbitrary changeover plug of double-phase three-phase, a serial communication port, including the plug shell, the inside both sides of plug shell are connected with the axis body, the outside of axis body is fixed with the bayonet joint, the higher authority of bayonet joint is fixed with double-phase and participates in, the preceding three-phase that is fixed with of bayonet joint participates in, the back left side of plug shell is provided with presses flexible bolt, the preceding upper portion of plug shell is provided with double-phase opening, double-phase open-ended inboard is provided with high elasticity silica gel strip, be connected with rubber baffle below high elasticity silica gel strip, the preceding lower part of plug shell is provided with the three-phase opening, three-phase open-ended inboard is provided with down high elasticity silica gel strip, the higher authority of low elasticity silica gel strip is connected with down rubber baffle.

2. The two-phase three-phase random changeover plug with the protection function according to claim 1, wherein the lower part and the left side of the shaft body are both provided with circular holes, and the inside of the shaft body is of a hollow structure.

3. The two-phase three-phase random changeover plug with the protection function according to claim 2, wherein both sides of the shaft body are provided with sealing bearings, and the sealing bearings are fixed on the inner side of the plug shell.

4. The two-phase three-phase random conversion plug with the protection function as claimed in claim 1, wherein a sealing ring is fixed on the rear surface of the plug shell, and the pressing telescopic plug pin penetrates through the sealing ring.

5. The two-phase three-phase random switching plug with the protection function as claimed in claim 1, wherein a bolt fixing sleeve is fixed inside the side surface of the plug housing, and the pressing telescopic bolt penetrates through the bolt fixing sleeve.

6. The plug as claimed in claim 1, wherein the push-down retractable plug comprises a plug housing, the plug housing is provided with an insertion rod, the insertion rod passes through the plug housing, spring strips are fixed to upper and lower sides of the insertion rod, the spring strips are provided with push springs on right sides, the spring strips are connected to left sides of the push springs, the right sides of the push springs are connected to the bottom of the plug housing, and the top of the left sides of the insertion rod is provided with a push head.

7. The two-phase three-phase random changeover plug with the protection function as claimed in claim 6, wherein the upper and lower surfaces inside the plug pin housing are provided with grooves, the left side of each groove is of a right-angle structure, and the right side of each groove is of an outer arc structure.

8. The plug as claimed in claim 1, wherein a high elastic force sheath is disposed outside each of the two pins and the three pins, the bottom of the high elastic force sheath is fixed to the plug, and a dust-proof rubber head is connected to the top of the high elastic force sheath and penetrates through the two pins and the three pins.