CN212462120U

CN212462120U - Three-plug socket with protective door

Info

Publication number: CN212462120U
Application number: CN202021267551.1U
Authority: CN
Inventors: 许超魁; 曹剑剑; 李永锋
Original assignee: Simon Electric China Co Ltd
Current assignee: Simon Electric China Co Ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-02-02
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to a three insert sockets with shutter, including upper housing, lower casing, shutter, torsional spring and pivot, the shutter set up in between upper housing and lower casing, and the shutter include the shaft hole and follow a pair of dog that the shaft hole extends, a pair of dog corresponds the L utmost point of three inserting the jack, N utmost point setting respectively, the pivot install in the shaft hole make the shutter rotatable around the pivot, the torsional spring cover locate the pivot make the shutter can rotate automatically and reset, the upper surface of each dog all has the slope curved surface that the incline direction is unanimous; the lower surface of the protective door is provided with a swinging boundary line and a pair of swinging inclined planes which are symmetrical relative to the swinging boundary line and inclined upwards, so that when the plug pin is inserted into the L-pole jack or the N-pole jack in a single stage, the protective door swings upwards around one side of the swinging boundary line and downwards around the other side of the swinging boundary line to be limited to rotate so as to close the three-plug socket.

Description

Three-plug socket with protective door

Technical Field

The utility model relates to an electrical socket technical field, in particular to three insert sockets with shutter.

Background

A two-pole grounded socket (also called "triple-plug") is a common multi-purpose socket, and a protective door structure can be arranged on the socket to prevent a single-pole plug from getting an electric shock.

In the market, two poles of a protective door with a grounding socket adopt a grounding bolt, a current-carrying bolt or the combined action of the grounding bolt and the current-carrying bolt to drive the protective door to slide in a single phase, at the moment, a spring is compressed, the protective door slides to an L, N-pole jack and is opened, and the bolt is continuously inserted into an insert sleeve downwards; when the plug is pulled out, the compressed spring drives the protective door to slide in a single phase to close L, N pole jacks; when the L or N pole is inserted alone, the protective door does not slide open.

The protective door occupies a large space during movement, and is not beneficial to expanding other sockets or switch functions on the basis of the socket.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective is exactly to the problem that occupies space big, be unfavorable for expanding other sockets or switch function on this socket basis that exists more than, provides a shutter motion required space littleer, promotes three sockets that have the shutter of part adaptability.

In order to achieve the above object, the utility model discloses a three-plug socket with shutter's technical scheme as follows:

the three-plug socket comprises an upper shell, a lower shell, a protective door, a torsional spring and a rotating shaft, wherein the protective door is arranged between the upper shell and the lower shell and comprises a shaft hole and a pair of stop blocks extending from the shaft hole, the pair of stop blocks respectively correspond to the L pole and the N pole of the three-plug jack, the rotating shaft is arranged in the shaft hole to enable the protective door to rotate around the rotating shaft, the torsional spring is sleeved on the rotating shaft to enable the protective door to automatically rotate and reset, and the upper surface of each stop block is provided with an inclined curved surface with the same inclined direction, so that when a bolt is simultaneously inserted into the L pole jack and the N pole jack, the protective door is driven to rotate along the rotating direction through the inclined curved surface on the stop block to open the three-plug socket; the lower surface of the protective door is provided with a swinging boundary line and a pair of swinging inclined planes which are symmetrical relative to the swinging boundary line and inclined upwards, so that when the plug pin is inserted into the L-pole jack or the N-pole jack in a single stage, the protective door swings upwards around one side of the swinging boundary line and downwards around the other side of the swinging boundary line to be limited to rotate so as to close the three-plug socket.

Preferably, the protective door is provided with a first limiting mechanism, the first limiting mechanism comprises a first limiting rib arranged at the outer edge of each stop dog, and the first limiting rib is used for resisting the elasticity of the torsion spring so as to limit the pair of stop dogs at the positions corresponding to the L pole and the N pole of the three insertion holes.

Preferably, the protective door is provided with a second limiting mechanism, the second limiting mechanism comprises a second limiting rib arranged above the inner edge of each stop block, and when one side of the protective door swings up and the other side swings down, the stop block on one side of the upper swing contacts with the second limiting rib to prevent the protective door from rotating along the rotating direction.

Preferably, the shaft hole of the protective door is located in the center of the three-plug jack, and one end of the rotating shaft is arranged on the upper shell.

Preferably, the protective door has an arc surface housing surrounding the shaft hole, one end of the torsion spring is mounted on the arc surface housing, and the other end of the torsion spring is mounted on the upper housing or the lower housing.

Preferably, the lower shell is provided with a protective door contact surface for mounting the lower surface of the protective door, so that when the bolt is inserted into the L-pole jack or the N-pole jack in a single-stage manner, the protective door swings upwards around one side of the swing boundary line and swings downwards around the other side of the swing boundary line.

By adopting the three-plug socket with the protective door, the protective door rotates around the three-plug center to realize the opening and closing of the L-pole jack and the N-pole jack in the three jacks; meanwhile, the socket can play a role in preventing insertion of a single pole, the space required by movement of the protective door is smaller, the adaptability of parts is improved, and the operable space for design and arrangement of the socket is increased.

Drawings

Fig. 1 is an exploded view of a three-plug receptacle with a protective door according to the present invention.

Fig. 2 is a schematic structural diagram of the lower shell and the protective door in the three-plug socket with the protective door of the present invention.

Fig. 3 is a schematic front structural view of the protection door in the three-plug socket with the protection door according to the present invention.

Fig. 4 is a schematic view of a back structure of a protection door in a three-plug socket with a protection door according to the present invention.

Fig. 5 is a schematic back structural view of the upper housing and the protective door in the three-pin socket with the protective door according to the present invention in a closed state.

Fig. 6 is a schematic back structural view of the upper housing and the shutter in the three-pin jack with the shutter according to the present invention in the open state.

Detailed Description

In order to clearly understand the technical contents of the present invention, the following embodiments are specifically illustrated in detail.

As shown in fig. 1 to 6, for the embodiment of the three-plug socket with a protective door provided by the present invention, wherein the three-plug socket includes a panel 1, an upper housing 2, a lower housing 3, a bottom plate 4, an N-pole jack 5, an L-pole jack 6, and a protective door 7 located between the upper housing 2 and the lower housing 3, the protective door 7 includes a shaft hole 12 and a pair of stoppers 9 extending from the shaft hole 12, the pair of stoppers 9 respectively correspond to the L-pole and the N-pole of the three-plug jack, a rotating shaft 17 is disposed at the back of the upper housing 2, the rotating shaft 17 is mounted in the shaft hole 12, so that the protective door 7 can rotate around the rotating shaft 17, the protective door 7 is provided with a torsion spring 8, the torsion spring 8 is sleeved on the rotating shaft 12 to pre-tighten the protective door and realize the automatic rotation and reset of the protective door, the upper surface of each stopper 9 has an inclined curved surface 10 with the same inclination direction, when the plug is simultaneously inserted into the L-pole jack and the N-pole jack, the inclined curved surface 10 on the stop block 9 drives the protective door 7 to rotate along the rotation direction so as to open the three-plug socket (shown in figure 6), and the plug is inserted into the plug bush, and the torsion spring is twisted, and after the plug is pulled out, the twisted torsion spring 8 drives the protective door to automatically reset along the direction opposite to the rotation direction so as to close the three-plug socket; as shown in fig. 4 to 5, the lower surface of the protective door 7 has a swing boundary line 13 and a pair of swing inclined planes 14 which are symmetrical to the swing boundary line 13 and inclined upward, so that when the plug pin is inserted into the L-pole jack or the N-pole jack in a single stage, the protective door 7 swings upward and downward around one side of the swing boundary line 13, and is restrained from rotating, so as to close the three-plug socket.

As shown in fig. 5 to 6, the protective door 7 is provided with a first limiting mechanism, the first limiting mechanism comprises first limiting ribs 15 arranged on the outer edge of each of the stoppers 9, the first limiting ribs 15 are used for resisting the elastic force of the torsion spring 8, when the bolt is pulled out, the elastic force of the torsion spring 8 drives the protective door to reset along the direction opposite to the rotating direction until the protective door is blocked by the first limiting ribs 15, and the pair of stoppers 9 are limited at the positions corresponding to the L pole and the N pole of the three insertion holes.

As shown in fig. 5, the protection door 7 is provided with a second stopper mechanism including a second stopper rib 16 provided above the inner edge of each stopper 9, wherein the direction from the outer edge to the inner edge of the stopper is set to coincide with the rotation direction of the protection door. When the plug pin is inserted into the L-pole jack and the N-pole jack simultaneously, the second limiting rib 16 is positioned above the stop block, so that the normal rotation of the protective door along the rotation direction is not hindered; when the plug pin is inserted into the L-pole jack or the N-pole jack in a single stage, one side of the protective door 7 swings upwards while the other side swings downwards, and a stop block at one side of the upper swing is in contact with the corresponding second limiting rib 16 to prevent the protective door from rotating along the rotating direction so as to further seal the three-plug socket.

In order to facilitate the sealing function of the protective door when the single-stage plug-in is carried out, a protective door contact surface is arranged at the corresponding position of the lower shell 3 and used for installing the lower surface of the protective door, so that when the single-stage plug-in of the plug pin is inserted into the L-pole jack or the N-pole jack, the protective door swings up and down around one side of the swing boundary line and the other side of the swing boundary line.

As shown in fig. 3 to 4, the shaft hole 12 of the protective door 7 is located at the center of the three-plug jack, and the pair of stoppers 7 are distributed in a V shape; for reducing the motion space, the protective door 7 have around the arc surface casing 11 that the shaft hole set up, the one end of torsional spring 8 install in arc surface casing 11, the other end of torsional spring install in last casing or lower casing.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. The utility model provides a socket is inserted to three with shutter, its characterized in that, three insert the socket and include casing, lower casing, shutter, torsional spring and pivot, the shutter set up in last casing and lower casing between, just the shutter include the shaft hole and follow a pair of dog that the shaft hole extends, a pair of dog correspond respectively the three L utmost point, the N utmost point setting of inserting the jack, the pivot install in the shaft hole make the shutter rotatable around the pivot, the torsional spring cover locate the pivot make the shutter but automatic rotation reset, every the upper surface of dog all have the unanimous slope curved surface of slope direction for when the bolt inserts L utmost point jack and N utmost point jack simultaneously, through the slope curved surface drive on the dog the shutter rotatory along the direction of rotation, to open the three-plug socket; the lower surface of the protective door is provided with a swinging boundary line and a pair of swinging inclined planes which are symmetrical relative to the swinging boundary line and inclined upwards, so that when the plug pin is inserted into the L-pole jack or the N-pole jack in a single stage, the protective door swings upwards around one side of the swinging boundary line and downwards around the other side of the swinging boundary line to be limited to rotate so as to close the three-plug socket.

2. The triple-socket according to claim 1, wherein the protective door is provided with a first limiting mechanism, the first limiting mechanism comprises a first limiting rib provided on an outer edge of each of the stoppers, and the first limiting rib is used for resisting the elastic force of the torsion spring so as to limit the pair of stoppers to positions corresponding to the L pole and the N pole of the triple-socket.

3. The triple-socket according to claim 1 or 2, wherein the shutter is provided with a second limiting mechanism, the second limiting mechanism comprises a second limiting rib provided above an inner edge of each of the stoppers, and when the shutter swings up and down on one side and on the other side, the stoppers on the swing-up side contact the second limiting rib to prevent the shutter from rotating in the rotation direction.

4. The triple-socket joint as claimed in claim 1, wherein the shaft hole of the shutter is located at the center of the triple-socket joint, and one end of the shaft is disposed on the upper housing.

5. The three-plug socket with the protection door as claimed in claim 1 or 4, wherein the protection door has an arc housing surrounding the shaft hole, one end of the torsion spring is mounted on the arc housing, and the other end of the torsion spring is mounted on the upper housing or the lower housing.

6. The triple-socket joint as claimed in claim 1, wherein the lower housing is provided with a protective door contact surface for mounting the lower surface of the protective door such that the protective door swings up and down on one side and on the other side around the swing boundary when the plug pin is inserted into the L-pole jack or the N-pole jack in a single stage.