CN106711691B

CN106711691B - Plug with self-locking function

Info

Publication number: CN106711691B
Application number: CN201710138153.6A
Authority: CN
Inventors: 徐伦
Original assignee: WELL SHIN ELECTRONIC (KUNSHAN) CO Ltd
Current assignee: WELL SHIN ELECTRONIC (KUNSHAN) CO Ltd
Priority date: 2017-03-09
Filing date: 2017-03-09
Publication date: 2022-11-04
Anticipated expiration: 2037-03-09
Also published as: CN106711691A

Abstract

The invention belongs to the field of plug correlation, and discloses a plug with a self-locking function, which comprises an assembly part and a ground wire copper pipe terminal inserted on the assembly part, wherein a switch is arranged above the assembly part, one side of the switch, which is close to the ground wire copper pipe terminal, is provided with a clamping hook, the clamping hook is arranged in the ground wire copper pipe terminal in a penetrating way, one end of the clamping hook is provided with a buckle capable of extending out of the side wall of the ground wire copper pipe terminal, an elastic reset mechanism positioned in the assembly part is arranged below one end, which is not provided with the buckle, of the clamping hook, the switch is pushed, the clamping hook is pressed downwards by the switch, the buckle extends out of the side wall of the ground wire copper pipe terminal, and the elastic reset mechanism is compressed by the clamping hook. Through the structure, the locking and unlocking of the plug and the socket can be effectively realized, the characteristic that the conventional product only has insertion guiding and conducting functions is broken through, the conducting safety and the electrifying stability when the plug is moved and used can be met, the personal safety of a user is ensured, and meanwhile, the damage to internal parts of an electric appliance during sudden power failure is avoided.

Description

Plug with self-locking function

Technical Field

The invention relates to the technical field of plugs, in particular to a plug with a self-locking function.

Background

Common plug and socket are no lock structure in life, as shown in fig. 1, when the plug is used and moved indoors or outdoors, the plugging force is smaller and smaller due to long-term plugging, when in normal use, too large gap is easily generated between the plug and the socket, the gap between the plug and the socket is easily disconnected, and the possibility of damaging internal parts of an electric appliance due to sudden power failure exists. And the gap between the plug and the socket may cause an adult or a minor to touch the zero-live terminal carelessly, resulting in serious electric shock and personal injury.

Therefore, how to design a plug capable of locking the plug and the socket when in use is a technical problem to be solved at present.

Disclosure of Invention

The invention aims to provide a plug with a self-locking function, which aims to solve the problem that an electric shock is caused or internal parts of a power-off electric appliance are damaged due to the fact that an overlarge gap is easily generated between the conventional plug and a socket.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a plug with self-locking function, includes the built-up member, pegs graft the ground wire copper pipe terminal on the built-up member, built-up member top is equipped with the switch, one side that the switch is close to ground wire copper pipe terminal is equipped with the trip, the trip wears to establish in ground wire copper pipe terminal and one end is equipped with the buckle that can stretch out ground wire copper pipe terminal lateral wall, the one end below that the buckle did not establish the buckle is equipped with the elasticity canceling release mechanical system who is located the built-up member, promotes the switch, the switch pushes down the trip, the buckle stretches out ground wire copper pipe terminal lateral wall, just elasticity canceling release mechanical system is compressed by the trip.

Preferably, the hook comprises a hook body, one end of the hook body is obliquely and upwards provided with an inclined part, the other end of the hook body is upwards bent to form a bent part, the length of the inclined part is greater than the inner diameter of the ground wire copper pipe terminal, the bent part can be pressed down by the switch, and the buckle is arranged below one end, provided with the inclined part, of the hook body.

Preferably, the elastic reset mechanism comprises a thimble below the hook and a return spring sleeved on the thimble and compressed by the thimble.

Preferably, the ejector pin is provided with a boss, and the return spring is arranged below the boss and can be compressed by the boss.

Preferably, a threaded through hole is formed in one end, close to the bent portion, of the hook body, and a thread is arranged at the upper end of the ejector pin and connected to the threaded through hole in a threaded mode.

Preferably, the ground wire copper pipe terminal is provided with a first through hole for the buckle to extend out and a second through hole for the upper end of the thimble to extend out.

Preferably, the assembly part comprises an upper cover and a lower cover which are connected with each other, a groove is arranged on the upper cover, the switch is slidably arranged on the upper cover, and a convex point which can be arranged in the groove is arranged on the switch.

Preferably, two supporting reinforcing ribs are symmetrically arranged in the lower cover, and the ground wire copper tube terminal is arranged on the supporting reinforcing ribs and supported by the supporting reinforcing ribs.

Preferably, the ground wire copper pipe terminal further comprises a protective sleeve, one end of the protective sleeve is sleeved on the cable connected to the assembly part, and the other end of the protective sleeve is sleeved on the ground wire copper pipe terminal and covers the buckle.

Preferably, the switch comprises a pushing part and a pressing part, and the pressing part is fixedly connected to one end of the pushing part and can press the clamping hook downwards.

The invention has the beneficial effects that: according to the invention, the switch is pressed forwards, the switch presses the clamping hook downwards, the clamping buckle extends out of the copper tube terminal of the ground wire, then the inner wall of the socket is scraped by the clamping buckle, meanwhile, the elastic reset mechanism is compressed, the clamping buckle keeps static, and the inner wall of the socket is completely scraped, so that the locking of the plug and the socket is completed. The switch is moved backwards, the elastic reset mechanism bounces the clamping hook, the clamping hook moves upwards into the ground wire copper pipe terminal, and the unlocking of the plug and the socket is completed. Through the structure, the locking and unlocking of the plug and the socket can be effectively realized, the characteristic that only the insertion guide and the conductive function are realized in the conventional product is broken, the conductive safety and the power-on stability of the plug during moving use can be met, the personal safety of a user is ensured, and meanwhile, the damage to internal parts of an electric appliance during sudden power failure is also avoided.

Drawings

FIG. 1 is a schematic diagram of a prior art plug configuration of the present invention;

FIG. 2 is a schematic structural diagram of the plug with self-locking function of the present invention;

fig. 3 is an exploded view of the plug with self-locking function of the present invention;

FIG. 4 is an enlarged schematic view taken at A of FIG. 3 in accordance with the present invention;

FIG. 5 is a schematic structural view of the plug with self-locking function of the present invention in an unlocked state;

fig. 6 is a schematic structural view of the plug with self-locking function of the invention in a locked state.

In the figure:

1. an assembly member; 2. a ground wire copper tube terminal; 3. a switch; 4. a hook is clamped; 5. buckling; 6. an elastic reset mechanism; 7. a protective sleeve; 8. a cable; 9. a zero live wire terminal; 11. an upper cover; 12. a lower cover; 13. supporting reinforcing ribs; 31. a pushing part; 32. a pressing part; 33. salient points; 41. a hook body; 42. an inclined portion; 43. a bending section; 44. a threaded via hole; 61. a thimble; 62. a return spring; 63. a boss; 111. and (4) a groove.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The invention provides a plug with a self-locking function, as shown in figures 2-6, the plug comprises an assembly part 1, one end of the assembly part 1 is inserted with a ground wire copper pipe terminal 2 and two zero live wire terminals 9 (one is a zero line terminal, the other is a live wire terminal) positioned below the ground wire copper pipe terminal 2, and the other end of the assembly part 1 is connected with a cable 8.

In this embodiment, the assembly 1 includes an upper cover 11 and a lower cover 12 that are clamped to each other, and a switch 3 is slidably disposed on the upper cover 11, specifically, the switch 3 can slide along a direction parallel to the copper ground tube terminal 2. Two supporting ribs 13 are symmetrically arranged in the lower cover 12, and the ground copper tube terminal 2 is arranged on the supporting ribs 13 and supported by the supporting ribs 13.

One side that is close to ground wire copper pipe terminal 2 at switch 3 is equipped with trip 4, and this trip 4 wears to establish in ground wire copper pipe terminal 2 and one end is equipped with the buckle 5 that can stretch out ground wire copper pipe terminal 2 lateral wall, and the one end below that trip 4 did not establish buckle 5 is equipped with the elasticity canceling release mechanical system 6 that is located built-up member 1. When push switch 3 slided to ground wire copper pipe terminal 2's direction, this switch 3 can push down trip 4, and buckle 5 can stretch out ground wire copper pipe terminal 2 lateral walls under trip 4's drive, and elasticity canceling release mechanical system 6 is compressed by trip 4 simultaneously.

In this embodiment, referring to fig. 3, the switch 3 includes a pushing portion 31 and a pressing portion 32, wherein the pressing portion 32 is fixed to the pushing portion 31, when the user pushes the pushing portion 31 to move, the pushing portion 31 drives the pressing portion 32 to move, and the pressing portion 32 presses the hook 4.

In this embodiment, referring to fig. 4, the hook 4 includes a hook body 41, one end of the hook body 41 is obliquely and upwardly provided with an inclined portion 42, the other end of the hook body 41 is upwardly bent to form a bent portion 43, wherein the length of the inclined portion 42 is greater than the inner diameter of the ground copper tube terminal 2, the downward pressing portion 32 of the switch 3 can press the bent portion 43, the buckle 5 is disposed below the end of the hook body 41 provided with the inclined portion 42, and in this embodiment, the buckle 5 and the hook body 41 are integrally formed. The reason why the length of the inclined portion 42 is set to be larger than the inner diameter of the ground wire copper tube terminal 2 is that when the bending portion 43 is pressed down by the pressing portion 32 of the switch 3, due to the existence of the elastic reset mechanism 6, the connection point of the elastic reset mechanism 6 and the hook body 41 can be regarded as a fulcrum, at this moment, the inclined portion 42 can rotate upwards and be limited by the ground wire copper tube terminal 2, at this moment, the whole hook 4 can gradually move to be in a horizontal state, and the buckle 5 on the hook can extend out of the ground wire copper tube terminal 2 to play a corresponding locking role. That is, the locking action of the catch 5 can only be achieved by the mutual cooperation of the inclined portion 42 and the bent portion 43.

In this embodiment, the buckle 5 may be a right triangle structure, and the right-angled side of the structure points to the switch 3.

Referring to fig. 3 and 4, the elastic return mechanism 6 includes a thimble 61 located below the hook 4, and a return spring 62 sleeved on the thimble 61 and compressed by the thimble 61, specifically, the thimble 61 is disposed at one end of the hook body 41 close to the bending portion 43, and the return spring 62 is disposed on the lower cover 12 and specifically between the two supporting ribs 13. When the bending portion 43 is pressed down by the pressing portion 32 of the switch 3, the hook body 41 presses down the thimble 61, and the thimble 61 compresses the return spring 62.

Preferably, the thimble 61 is provided with a boss 63, and the return spring 62 is disposed below the boss 63 and is compressible by the boss 63.

In order to better compress the thimble 61 by the hook body 41, in this embodiment, a threaded through hole 44 is formed at one end of the hook body 41 close to the curved portion 43, and a thread is formed at the upper end of the thimble 61 and is threadedly connected to the threaded through hole 44, so as to fixedly connect the thimble 61 with the hook body 41. When the bending portion 43 is pressed down by the pressing portion 32 of the switch 3, since the return spring 62 is sleeved outside the thimble 61, the connection point between the elastic return mechanism 6 and the hook body 41 can still be regarded as a fulcrum, at this time, the inclined portion 42 will rotate upward and be limited by the copper ground tube terminal 2, and at this time, the whole hook 4 will gradually move to a horizontal state, so that the buckle 5 extends out of the copper ground tube terminal 2.

In this embodiment, a first through hole for the buckle 5 to extend out and a second through hole for the upper end of the thimble 61 to extend out are provided on the ground copper tube terminal 2, and the first through hole and the second through hole are both provided below the ground copper tube terminal 2.

The plug of this embodiment is still including protective sheath 7, and the cable 8 of connection on built-up member 1 is located to this protective sheath 7 pot head, and another pot head is established on ground wire copper pipe terminal 2 and is covered buckle 5 sets up, plays the guard action to above-mentioned buckle 5, also can prevent simultaneously that 4 pointed ends of trip from scraping the hand or scraping bad packing carton.

Furthermore, as shown in fig. 5 and fig. 6, in this embodiment, a protruding point 33 is disposed on the switch 3, a groove 111 is disposed on the upper cover 11, and when the pushing portion 31 drives the pressing portion 32 to move and the pressing portion 32 presses the hook 4, the protruding point 33 is disposed in the groove 111, so that the position of the switch 32 is locked and positioned by the upper cover 11, and the switch 32 is prevented from moving backwards to affect the locking of the plug and the socket.

When the plug is inserted into the socket, the switch 3 is pushed to move towards the direction close to the ground wire copper tube terminal 2, the pressing part 32 of the switch 3 presses down the clamping hook 4, the elastic resetting device is compressed by the clamping hook 4 in the process, and the buckle 5 extends out of the ground wire copper tube terminal 2 and hooks the inner wall of the socket. After the switch 3 is pushed to the right position, the buckle 5 hooks the inner wall of the socket completely, and the locking of the plug and the socket is completed, as shown in fig. 6.

When the socket is extracted to the plug, with switch 3 to the direction one end promotion of keeping away from ground wire copper pipe terminal 2, switch 3's the portion 32 that pushes down breaks away from trip 4 gradually this moment, and finally no longer push down trip 4, because elastic reset device is in compression state this moment, it can be with trip 4 jack-up that makes progress, trip 4 then drives buckle 5 and withdraws to ground wire copper pipe terminal 2 in (as shown in fig. 5), buckle 5 no longer hooks the socket inner wall promptly, the unblock of plug and socket has been accomplished this moment promptly, can extract the plug afterwards.

It should be understood that the above examples are only for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The plug with the self-locking function is characterized by comprising an assembly part (1) and a ground wire copper pipe terminal (2) inserted on the assembly part (1), wherein a switch (3) is arranged above the assembly part (1), a clamping hook (4) is arranged on one side, close to the ground wire copper pipe terminal (2), of the switch (3), the clamping hook (4) penetrates through the ground wire copper pipe terminal (2), a clamping buckle (5) capable of extending out of the side wall of the ground wire copper pipe terminal (2) is arranged at one end of the clamping hook (4), an elastic reset mechanism (6) located in the assembly part (1) is arranged below the end, not provided with the clamping buckle (5), of the clamping hook (4), the switch (3) is pushed, the clamping hook (4) is pressed downwards, the clamping hook (5) extends out of the side wall of the ground wire copper pipe terminal (2), and the elastic reset mechanism (6) is compressed by the clamping hook (4);

the hook (4) comprises a hook body (41), one end of the hook body (41) inclines upwards to be provided with an inclined part (42), the other end of the hook body bends upwards to form a bending part (43), the length of the inclined part (42) is larger than the inner diameter of the ground wire copper pipe terminal (2), the switch (3) can press the bending part (43), and the buckle (5) is arranged below one end of the hook body (41) provided with the inclined part (42).

2. The plug with self-locking function according to claim 1, wherein the elastic return mechanism (6) comprises a thimble (61) located below the hook (4), and a return spring (62) sleeved on the thimble (61) and compressed by the thimble (61).

3. The plug with the self-locking function according to claim 2, wherein the ejector pin (61) is provided with a boss (63), and the return spring (62) is disposed below the boss (63) and can be compressed by the boss (63).

4. The plug with the self-locking function according to claim 3, wherein a threaded through hole (44) is formed at one end of the hook body (41) close to the curved portion (43), and the upper end of the thimble (61) is provided with threads and is in threaded connection with the threaded through hole (44).

5. The plug with the self-locking function according to claim 4, wherein the ground copper tube terminal (2) is provided with a first through hole for the buckle (5) to extend out, and a second through hole for the ejector pin (61) to extend out.

6. The plug with self-locking function according to claim 1, wherein the assembly member (1) comprises an upper cover (11) and a lower cover (12) which are connected with each other, a groove (111) is formed on the upper cover (11), the switch (3) is slidably arranged on the upper cover (11), and a convex point (33) which can be placed in the groove (111) is formed on the switch (3).

7. The plug with the self-locking function according to claim 6, wherein two supporting ribs (13) are symmetrically arranged in the lower cover (12), and the ground copper tube terminal (2) is arranged on the supporting ribs (13) and supported by the supporting ribs (13).

8. The plug with the self-locking function according to claim 1, further comprising a protective sleeve (7), wherein one end of the protective sleeve (7) is sleeved on the cable (8) connected to the assembly member (1), and the other end of the protective sleeve is sleeved on the ground copper tube terminal (2) and covers the buckle (5).

9. The plug with self-locking function according to claim 1, wherein the switch (3) comprises a pushing portion (31) and a pressing portion (32), and the pressing portion (32) is fixedly connected to one end of the pushing portion (31) and can press the hook (4) downwards.