CN111262072B

CN111262072B - Socket with safety device

Info

Publication number: CN111262072B
Application number: CN202010068451.4A
Authority: CN
Inventors: 刘大群
Original assignee: Shenzhen Everwin Precision Technology Co Ltd
Current assignee: Shenzhen Everwin Precision Technology Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-07-02
Anticipated expiration: 2040-01-21
Also published as: CN111262072A

Abstract

A socket with a safety comprises a socket shell, a closed cover, a locking piece, a pair of connecting plates and a pulling handle, wherein the socket shell is provided with a socket opening, an outer peripheral wall and a front end wall, the closed cover is rotatably connected to the socket shell and can close the socket opening, the locking piece is fixed to the front end wall of the two transverse sides of the socket shell, the pair of connecting plates are rotatably fixed to the outer peripheral wall, the pulling handle is connected with the pair of connecting plates and the locking piece, a first shaft hole is formed in the outer peripheral wall and fixed to the rear end of the connecting plate through a first riveting column, a second shaft hole is formed in one side in front of the connecting plate, a rail groove is formed in the position, below the second shaft hole, of the rail groove extends to the position between the first shaft hole and the second shaft hole, the pulling handle comprises a handle rod and a pair of vertical rods connected to two ends of the handle rod, the lock catch piece and the track groove are connected into a whole.

Description

Socket with safety device

Technical Field

The present application relates to the field of electrical connectors, and more particularly, to a safety socket.

Background

The high-current connector has extremely high waterproof requirements, otherwise, safety accidents are easily caused; a closure cap is generally required for the locking mechanism, when no plug is plugged in a mating manner. The patent application No. 201910265711.4 discloses a high current locking mechanism with a closing cover, but the closing cover needs to be fixed with a shell through bolts, and the operation is complex. The connection between the plug and the socket also lacks a locking mechanism, is very easy to loosen and can cause danger. The patent of the people's republic of china application No. 201910682811.7 discloses a socket with a locking mechanism, but the locking mechanism lacks a safety device, and is prone to cause misoperation and electric shock risk.

Disclosure of Invention

In view of the above, it is desirable to provide a receptacle with a safety feature to prevent inadvertent opening of the closure.

In order to solve the technical problem, the application provides a socket with a safety, which comprises a socket shell, a rotating connection part, a pair of connecting plates and a pair of pulling handles, wherein the socket shell is provided with a socket, an outer peripheral wall and a front end wall, the socket shell is rotationally connected to the socket shell and can be sealed, the closed cover of the socket is sealed, the locking parts are fixed on the front end walls of the two transverse sides of the socket shell, the rotating connection part is fixed on the outer peripheral wall, the pulling handles are connected with the connecting plates and the locking parts, the rear ends of the connecting plates are provided with a first shaft hole fixed on the outer peripheral wall through a first riveting column, a second shaft hole positioned on one side in front of the connecting plates and a track groove extending to the position between the first shaft hole and the second shaft hole from the lower part of the second shaft hole, the pulling handles comprise handle rods and a pair of, a third riveting post passes through the free end of montant, hasp spare, track groove are connected as an organic wholely, and at least one connecting plate is installed outward and is protected the latch fitting, the insurance latch fitting includes the splenium and the trip portion of pressing that the unblock was used, trip portion is including extending to the trip of track groove upside is in order to pin to remove to the third riveting post of track groove upside.

Preferably, the track groove is an arc-shaped groove with the second riveting column as a circle center.

Preferably, the lock catch piece comprises a fixing column fixed on the front end wall and a lock sleeve sleeved at the front end of the fixing column and capable of moving back and forth, the lock sleeve comprises a sleeve sleeved at the front end of the fixing column, a first limiting wall and a second limiting wall which are formed by respectively protruding upwards from the front side and the rear side of the sleeve, and a lock groove formed between the first limiting wall and the second limiting wall, a fourth shaft hole is formed in the second limiting wall, and lock shafts locked in the lock groove by lock catches are arranged on the two transverse sides of the sealing cover.

Preferably, the third riveting column moves in the rail groove when the pulling handle rotates around the second riveting column, and when the third riveting column moves to the upper end of the rail groove, the third riveting column is locked into the lock hook of the safety lock.

Preferably, the connecting plate is in the upper end top in track groove has seted up the third shaft hole, the splenium of pressing of insurance latch fitting with lock hook portion is L shape structure, just press the splenium with lock hook portion junction is equipped with the joint portion, the joint portion is equipped with the fifth shaft hole, the third shaft hole with the fifth shaft hole is in the same place through a fourth riveting post swing joint.

Preferably, the connecting plate is located be equipped with spacing post hole between third shaft hole and the track groove, be fixed with spacing post on the spacing post hole, spacing post is spacing the inboard prevention of lock hook portion rotates forward so that the lock hook is located track groove upper end.

Preferably, a guide surface is arranged on the lower side of the lock hook part, and when the third riveting column moves upwards in the track groove, the third riveting column can push the lock hook backwards along the guide surface and lock the lock hook into the upper side of the lock hook.

Preferably, the insurance latch fitting with still be equipped with the torsional spring between the connecting plate, the torsional spring is located including the cover middle annular portion on the fourth riveting post, be formed at the first, second end at middle annular portion both ends, the connecting plate is located still be equipped with first riveting hole between first shaft hole and the third shaft hole, press inboard downwardly extending of splenium to be formed with the extension thin wall, the second riveting hole has been seted up on the extension thin wall, the first, second end of torsional spring do not anchor in first, second riveting hole.

Preferably, when the socket needs to be closed by the closing cover, the closing cover is firstly applied with downward force to clamp the lock shafts on the two transverse sides of the closing cover into the lock grooves of the lock sleeve; and then, pulling the handle rod to enable the vertical rod to rotate around the second riveting column in the second shaft hole, enabling the free end of the vertical rod to drive the lock sleeve to move backwards through the third riveting column to further lock the closing cover, and meanwhile, enabling the third riveting column to move backwards and upwards along the track groove and cross over the lock hook on the upper end side of the track groove and lock the lock hook above the lock hook.

Preferably, when the closing cover needs to be opened, the pressing portion of the safety locking piece is pressed downwards to overcome the elastic force of the torsion spring, so that the locking hook portion of the safety locking piece rotates backwards to be separated from the rail groove to unlock the third riveting column, and then the pulling handle is pulled upwards to enable the lock sleeve to move forwards to open the closing cover.

This application area insurance socket is through setting up an insurance latch fitting outside the connecting plate, makes the lock of insurance latch fitting collude and extends to the upper end in track groove is to rotating extremely the locking of third riveting post on the track groove avoids unexpected pulling the pulling handle and opens the closing cap causes the risk of electrocution.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

FIG. 1 is a perspective view of a closure cap of a socket of the present application in a closed position;

FIG. 2 is a perspective view of the closure of the receptacle of the present application in an open position;

FIG. 3 is a perspective view of the present application with the receptacle housing removed;

FIG. 4 is a perspective view of a web of the socket of the present application;

FIG. 5 is a perspective view of the connecting plate and torsion spring of the socket of the present application;

FIG. 6 is a perspective view of the coupling plate, torsion spring and safety lock of the socket of the present application;

FIG. 7 is a perspective view of a safety lock of the socket of the present application;

fig. 8 is a perspective view of a locking element of the socket of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings.

Referring to fig. 1 and 2, the socket with a safety of the present application includes a socket housing 10 having a socket 15 at a front end thereof, a closing cover 20 rotatably fixed to the socket housing 10, a connecting plate 40 movably fixed to an outer side of the socket housing 10, a pulling handle 30 movably fixed to the connecting plate 40, a locking member 50 fixed to an outer side of the front end of the socket housing 10, and a safety locking member 60 installed at an outer side of at least one connecting plate 40.

The receptacle housing 10 includes an outer peripheral wall 11, a front end wall 12 formed on a front end surface of an outer periphery of a receptacle 15 of the receptacle housing 10, and a pair of extension arms 14 formed to extend from a top of the receptacle housing 10. A rotating shaft 13 is arranged between the pair of extension arms 14. The closing cover 20 includes a cover body 21 covering the front end of the insertion opening 15, a pivoting portion 22 extending from the top of the cover body 21 and pivotally connected to the rotating shaft 13, and locking shafts 23 formed at two lateral sides of the cover body 21. The pulling handle 30 includes a handle bar 31, and vertical bars 32 connected to both ends of the handle bar 31, respectively. The free end of the vertical rod 32 is provided with a first hole structure 321, and the position of the vertical rod 32 close to the free end is provided with a second hole structure 322. The closing cover 20 and the socket housing 10 are provided with torsion springs at the positions of the pivoting parts 22, and the torsion springs make the closing cover 20 always in an open state under the condition of no external force.

Referring to fig. 4, the connecting plate 40 is a metal plate structure, and has a substantially triangular structure including a rear corner 421, a front corner 422, and an upper corner 423, wherein the rear corner 421, the front corner 422, and the upper corner 423 are arc-shaped. The connecting plate 40 further includes a first shaft hole 411 disposed at the rear corner 421, a second shaft hole 412 disposed between the front corner 422 and the upper corner 423, a third shaft hole 413 disposed at a position behind the upper corner 423, and a rail groove 414 extending from the front corner 422 to a position between the first shaft hole 411 and the second shaft hole 412. The track groove 414 has an arc-shaped structure bent toward the second shaft hole 412. A first riveting hole 416 is further formed between the first shaft hole 411 and the third shaft hole 413, and a limiting column hole 415 is further formed between the third shaft hole 413 and the upper end of the track groove 414. The connection plate 40 includes two portions located on the left and right sides of the socket housing 10, one of which includes all the above-mentioned structures, and the other includes only the first and

second shaft holes

411 and 412 and the rail groove 414, and the remaining structures may be omitted.

As shown in fig. 8, the locking element 50 includes a fixing post 51 and a lock sleeve 52 sleeved on the front end of the fixing post 51 and capable of sliding back and forth on the fixing post 51. The rear end 511 of the fixed post 51 is fixed to the front wall 12 of the receptacle housing 10 by a screw, and the lock sleeve 52 includes a sleeve 526 sleeved on the front end of the fixed post 51, first and second

limiting walls

522 and 523 formed by protruding upward from the front and rear sides of the sleeve 526, and a lock groove 521 formed between the first and second

limiting walls

522 and 523. The top surface of the first limiting wall 522 is lower than the top surface of the second limiting wall 523, and an inclined guide 524 is disposed on one side of the locking groove 521 of the first limiting wall 522. A fourth shaft hole 525 is formed in the second limiting wall 523.

Referring to fig. 7, the safety lock 60 includes a pressing portion 61, a locking hook portion 62 and a combination portion 63 between the pressing portion 61 and the locking hook portion 62. The combining portion 63 is provided with a fifth axial hole 631, a locking hook 621 is formed at a free end of the locking hook 62 toward the pressing portion 61, the pressing portion 61 is close to the extending thin wall 611 formed by downward protrusion of one side of the connecting plate 40, and the extending thin wall 611 is provided with a second riveting hole 612.

Referring to fig. 5 and 6, a torsion spring 43 is further disposed between the connecting plate 40 and the safety lock 60, and the torsion spring 43 includes a middle ring portion 433 and first and

second end portions

431 and 432 at two ends. The safety lock 60 is assembled outside the connecting plate 40, specifically, a fourth riveting column 444 passes through the third shaft hole 413 of the connecting plate 40, and then the middle annular portion 433 of the torsion spring 43 is sleeved on the fourth riveting column 444 and located outside the connecting plate 40, meanwhile, the first end portion 431 of the torsion spring 43 is fixed in the first riveting hole 416 of the connecting plate 40, and the second end portion 432 is fixed in the second riveting hole 612 of the safety lock 60. The both ends of the fourth riveting column 444 are processed to be locked to prevent the connection plate 40 from being separated from the safety lock 60. A limiting post 45 is fixed in the limiting post hole 415 of the connecting plate 40, the limiting post 45 is located inside the locking hook part 62 of the safety locking piece 60 and used for resisting the force of the torsion spring 43 and limiting the safety locking piece 60 so that the locking hook 621 is located on the upper end side of the track groove 414.

With continued reference to fig. 1-3, the second shaft hole 412 of the connecting plate 40 and the second hole structure 322 of the connecting rod 32 are connected together by a second rivet pin 442. The track groove 414 of the connecting plate 40, the first hole structure 321 of the connecting rod 32 and the fourth shaft hole 525 of the locking element 50 are connected together by a third riveting post 443. The first shaft hole 411 of the connection plate 40 is fixed to the outer peripheral wall 11 of the receptacle housing 10 by a first rivet post 441.

The working principle of the socket is as follows:

it is emphasized that fig. 2 shows the socket of the present application in an opened state of the closure 20, in which the handle bar 31 of the pulling handle 30 is located above the socket housing 10, and the free end of the vertical bar 32 carries the lock sleeve 52 to a position farthest away from the socket housing 10, i.e. the third rivet post 443 connected to the connecting plate 40 and the lock sleeve 52 is located at the lowest part of the rail slot 414;

referring to fig. 2 and fig. 1, when the sealing cover 20 needs to be sealed, first, the sealing cover 20 is forced downward to clamp the locking shafts 23 on the two lateral sides of the sealing cover 20 into the locking groove 521 of the locking sleeve 52, and at this time, the sealing cover 20 is in a half-open state and is not locked; then, the handle lever 31 is pulled to rotate the vertical rod 32 around the second riveting column 442 in the second shaft hole 322, so that the free end of the vertical rod 32 drives the lock sleeve 52 to move backwards through the third riveting column 443 to further lock the closure lid, meanwhile, the third riveting column 443 moves backwards and upwards along the track groove 414, and passes over the lock hook 621 and is locked above the lock hook 621 on the upper end side of the track groove 414, at this time, the third riveting column 443 cannot move downwards any more, that is, the closure lid cannot be opened any more, and a guide surface 622 is arranged at one end of the lower side of the end of the lock hook 621, so that the third riveting column 442 is smoothly locked in.

If the closing cover needs to be opened, the pressing portion 61 of the safety lock 60 needs to be pressed downward to overcome the elastic force of the torsion spring 43, so that the locking hook portion 62 of the safety lock 60 rotates backward to be separated from the rail groove 414 to unlock the third riveting column 443, and at this time, the pulling handle 30 is pulled upward to move the lock sleeve 52 forward to open the closing cover 20.

The socket with the safety device is characterized in that a safety locking piece 60 is arranged outside a connecting plate 40, so that a locking hook 621 of the safety locking piece 60 extends to the upper end of a rail groove 414, and is rotated to a third riveting column 443 at the upper end of the rail groove 414 to be locked, so that accidental pulling is avoided, a handle 30 is pulled and a sealing cover is opened, and electric shock risks are caused.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A socket with a safety comprises a socket shell, a closed cover, a locking piece, a pair of connecting plates and a pulling handle, wherein the socket shell is provided with a socket opening, an outer peripheral wall and a front end wall, the closed cover is rotatably connected to the socket shell and can close the socket opening, the locking piece is fixed to the front end wall of the two transverse sides of the socket shell, the pair of connecting plates are rotatably fixed to the outer peripheral wall, the pulling handle is connected with the pair of connecting plates and the locking piece, a first shaft hole is formed in the outer peripheral wall and fixed to the rear end of the connecting plate through a first riveting column, a second shaft hole is formed in one side in front of the connecting plate, a rail groove is formed in the position, below the second shaft hole, of the rail groove extends to the position between the first shaft hole and the second shaft hole, the pulling handle comprises a handle rod and a pair of vertical rods connected to two ends of the handle rod, hasp spare, track groove are connected as an organic wholely, its characterized in that, at least one connecting plate installs insurance latch fitting outward, insurance latch fitting includes the splenium and the trip portion of pressing of unblock usefulness, trip portion is including extending to the trip of track groove upside is in order to pin to remove to the third riveting post of track groove upside.

2. The socket of claim 1 wherein said track slot is an arcuate slot centered on said second stake.

3. The socket of claim 2, wherein the locking member includes a fixing post fixed to the front end wall and a locking sleeve sleeved on the front end of the fixing post and movable forward and backward, the locking sleeve includes a sleeve sleeved on the front end of the fixing post, first and second limiting walls formed by protruding upward from the front and rear sides of the sleeve, and a locking groove formed between the first and second limiting walls, the second limiting wall is formed with a fourth axial hole, and the two lateral sides of the sealing cover are provided with locking shafts locked in the locking groove.

4. The jack of claim 3, wherein said third stake moves within said track slot as said pull handle pivots about said second stake, said third stake locking into said catch of said safety lock as said third stake moves to an upper end of said track slot.

5. The socket of claim 4, wherein the connecting plate has a third axial hole above the upper end of the track groove, the pressing portion of the safety locking member and the locking hook portion are in an L-shaped configuration, a joint portion is provided at a connection position of the pressing portion and the locking hook portion, the joint portion has a fifth axial hole, and the third axial hole and the fifth axial hole are movably connected together by a fourth riveting column.

6. The socket of claim 5, wherein a limiting post hole is formed in the connecting plate between the third shaft hole and the track groove, a limiting post is fixed in the limiting post hole, and the limiting post limits the inner side of the locking hook portion to prevent the locking hook portion from rotating forward so that the locking hook is located at the upper end of the track groove.

7. The socket of claim 6, wherein the lower side of the locking hook is provided with a guiding surface, and the third rivet post can push the locking hook backwards along the guiding surface and lock into the upper side of the locking hook when moving upwards in the track groove.

8. The socket of claim 5, wherein a torsion spring is further disposed between the safety lock and the connecting plate, the torsion spring includes a middle ring portion sleeved on the fourth rivet column, and first and second end portions formed at two ends of the middle ring portion, the connecting plate further includes a first rivet hole disposed between the first shaft hole and the third shaft hole, an extending thin wall is formed by extending the inner side of the pressing portion downward, a second rivet hole is formed on the extending thin wall, and the first and second end portions of the torsion spring are anchored in the first and second rivet holes, respectively.

9. The socket of claim 6, wherein when the closing cap is required to close the socket, the closing cap is first forced downward to clamp the locking shafts on the two lateral sides of the closing cap into the locking grooves of the locking sleeve; and then, pulling the handle rod to enable the vertical rod to rotate around the second riveting column in the second shaft hole, enabling the free end of the vertical rod to drive the lock sleeve to move backwards through the third riveting column to further lock the closing cover, and meanwhile, enabling the third riveting column to move backwards and upwards along the track groove and cross over the lock hook on the upper end side of the track groove and lock the lock hook above the lock hook.

10. The socket of claim 8, wherein when the closing cover needs to be opened, the pressing portion of the safety lock is pressed downward to overcome the elastic force of the torsion spring, so that the hook portion of the safety lock is rotated backward to disengage from the track groove to unlock the third rivet column, and then the pulling handle is pulled upward to move the lock sleeve forward to open the closing cover.