CN111900581A

CN111900581A - Portable socket

Info

Publication number: CN111900581A
Application number: CN202010963890.1A
Authority: CN
Inventors: 贾连欢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2020-11-06

Abstract

A portable socket comprises a plug, a socket, a junction box, a door opening and closing mechanism and a circuit mechanism, wherein the plug and the socket are matched for use, the plug is a special plug, and the junction box is fixedly arranged on the outer side of the socket and used for connecting an input circuit into the junction box; the switch door mechanism is fixedly arranged in the socket, the plurality of circuit mechanisms are fixedly arranged in the socket, and the circuit mechanisms realize the functions of blocking and electric shock prevention; can laminate with cylinder pole ball part after the plug inserts to promote the outside expansion of cylinder pole, cylinder pole inclined plane and the cylinder inclined plane of taking the square are closed, take the cylinder of square to move down, take the cylinder square part of square and the groove part coincidence of electrically conductive dish to realize electrically conductive dish circular telegram effect, do not have the coincidence to realize the circular telegram effect when any one of them cylinder square part of taking the square and the groove part of electrically conductive dish, realize children and electrocute the protect function.

Description

Portable socket

Technical Field

The invention relates to the technical field of sockets, in particular to a portable socket.

Background

In the conventional socket, the contact pins are inserted into the passages in the socket of the socket to be energized only after the plug portion is attached to the socket portion. However, in the process of using the socket, it is found that the jack is difficult to find when the light is not good, or the jack is inserted wrongly, so that electric shock is caused.

Disclosure of Invention

Aiming at the problems, the invention provides a portable socket which comprises a plug, a socket, a junction box, a door opening and closing mechanism and a circuit mechanism, and is characterized in that the plug and the socket are matched for use, the plug is a special plug, the junction box is fixedly arranged on the outer side of the socket, and an input circuit is connected into the junction box; the switch door mechanism is fixedly arranged in the socket, the plurality of circuit mechanisms are fixedly arranged in the socket, and the circuit mechanisms realize the functions of blocking and electric shock prevention;

preferably, the plug comprises an anti-skid insulated switch, a connecting rod A, a sliding block, a spring A, an armature, a sliding rail and a cylinder; the anti-skid insulation switch is slidably mounted on the outer side of the plug shell and fixedly connected with the cylinder, a zero line contact column, a fire line contact column and a ground line contact column are fixedly mounted on the cylinder, and the zero line contact column, the fire line contact column and the ground line contact column are communicated with an electric appliance through wires; connecting rod A fixed mounting is in the cylinder bottom, and slider inclined plane and connecting rod A inclined plane coincide, and slider slidable mounting is on the slide rail, and slide rail fixed mounting is in the inside of plug shell, armature and slider fixed mounting, spring A one end and armature fixed mounting, the spring A other end and the shell fixed mounting of plug.

Preferably, the door opening and closing mechanism comprises a zero coil, a fire coil, a rack A, a rack B, an insulating gear A, an insulating gear B, a bevel gear A, a bevel gear B, a belt transmission, a gear A, a rack C, an internal gear, a ring, a connecting rod B, an opening and closing door, a plate type sliding rail, a spring B and an electromagnet A; the zero coil and the fire coil are fixedly connected, the middle of the zero coil and the fire coil are separated by a joint rubber, the lower end of the rack A is fixedly arranged on the spring B, and the lower end of the spring B is fixedly arranged in the socket; the top end of a rack B is fixedly connected with the bottom end of a fire coil, the rack B is slidably arranged in a groove in the socket, an insulating gear A is rotatably arranged on a shaft in the socket and is arranged between the rack A and the rack B, and the insulating gear A is meshed with the rack A and the rack B; the insulating gear B is fixedly connected with the bevel gear A through a shaft, the shaft is rotatably arranged in a circular hole of a support frame of the socket, the insulating gear B is meshed with the rack A, the bevel gear B is rotatably arranged on the shaft in the socket and meshed with the bevel gear A, one end of a belt transmission is arranged on a belt pulley at the bottom end of the bevel gear B, and the other end of the belt transmission is fixedly arranged on a belt pulley at the upper end of the gear A; the gear A is rotatably arranged in a circular hole in the socket, the gear A is meshed with the rack C, the rack C is slidably arranged on the inner gear, the circular ring is rotatably arranged on the inner side of the inner gear, and the circular ring is meshed with the gear A; the connecting rod B and the rack C are fixedly installed, the switch door is fixedly connected with the connecting rod B, the switch door is slidably installed in a groove in the plate-type sliding rail, the plate-type sliding rail is fixedly installed below the circular plate, and eight electromagnets A are arranged on the inner side of the hemispherical surface of the circular plate; when the plug is inserted into the hemisphere of the socket.

Preferably, the circuit mechanism comprises a cylinder with a square block, a spring C, a conductive disc, a binding post, a spring D, an N-shaped bracket, a cylindrical rod, a clamping door, a spring E and an electromagnet B; the cylinder with the square blocks is slidably arranged on the N-type support, the top end of the spring C is fixedly connected with the bottom end of the cylindrical disc with the square blocks, the bottom end of the spring C is fixedly arranged at the top end of the N-type support, the N-type support is fixedly arranged on the conductive disc, and the spring C enables the cylinder with the square blocks to move upwards; the conductive disc is fixedly arranged in the socket, four raised grooves are formed in the conductive disc, one end of the conductive disc is fixedly arranged and communicated with the binding posts, and the three binding posts are respectively communicated with the zero coil, the fire coil and the rack A; the other end of the conductive disc is communicated with the junction box through a circuit; the inner side end of the spring D is fixedly arranged on the inner side of the hemispherical surface of the socket, the cylindrical rod is slidably arranged in the round hole of the hemispherical surface of the socket, and the spring D is slidably arranged on the outer side of the cylindrical rod. The outer side end of the spring D is fixedly connected with the cylindrical rod, and the spring D generates tension to enable the cylindrical rod to move towards the door opening and closing direction; the clamping door is slidably mounted inside the circular plate, the spring E is fixedly mounted on the clamping door, and the spring E generates elastic force to enable the clamping door to move towards the door opening and closing direction.

The invention has the beneficial effects that:

1. the switch door mechanism is fixedly arranged in the socket, the plurality of circuit mechanisms are fixedly arranged in the socket, and the circuit mechanisms realize the functions of blocking and electric shock prevention;

2. the power-off and the connection are completed by manually controlling the anti-skid insulating switch; the emergency is conveniently handled, and the safety is improved.

3. Can laminate with cylinder pole ball part after the plug inserts to promote the outside expansion of cylinder pole, cylinder pole inclined plane and the cylinder inclined plane of taking the square are closed, take the cylinder of square to move down, take the cylinder square part of square and the groove part coincidence of electrically conductive dish to realize electrically conductive dish circular telegram effect, do not have the coincidence to realize the circular telegram effect when any one of them cylinder square part of taking the square and the groove part of electrically conductive dish, realize children and electrocute the protect function.

4. Establish into the circle through the contact surface with plug 1, coincide mutually with the hemisphere face on the plectane 419, and then the cooperation of two faces of being convenient for, with the zero line contact post of plug 1, live wire contact post and ground wire contact post design one-line arrangement, simultaneously with zero coil 401, fire coil 402, and rack A403 design ring 413, and be concentric circles mode and arrange, make plug 1 male then the zero line contact post of angle, live wire contact post and ground wire contact post all can with zero coil 401, fire coil 402, and rack A403 contact and switch on accomplish the circular telegram, make things convenient for the consumer to use and prevent the mistake jack and then lead to taking place to electrocute danger evening.

Drawings

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

Fig. 2 is an overall schematic view of the plug of the present invention.

Fig. 3 is an internal schematic view of the plug of the present invention.

FIG. 4 is an enlarged structural diagram A of the drawing of the present invention.

Fig. 5 is an overall schematic view of the socket of the present invention.

Fig. 6 is a schematic diagram of the internal structure of the socket of the present invention.

Fig. 7 is a schematic view of the door opening and closing mechanism of the present invention.

Fig. 8 is an enlarged structural diagram of B1 in the drawing of the present invention.

Fig. 9 is an enlarged structural diagram of B2 in the drawing of the present invention.

Fig. 10-13 are schematic views of the wiring mechanism of the present invention.

1-a plug; 2-a socket; 3-a junction box; 4-a door opening and closing mechanism; 5-a line mechanism; 101-antiskid insulated switch; 102-connecting rod a; 103-a slide block; 104-spring a; 105-an armature; 106-a slide rail; 107-cylinder; 401-zero coil; 402-a pyro-coil; 403-rack a; 404-rack B; 405-insulated gear a; 406 — insulated gear B; 407-bevel gear a; 408-bevel gear B; 409-belt transmission; 410-gear a; 411-rack C; 412-internal gear; 413-a ring; 414-connecting rod B; 415-opening and closing the door; 416-plate type slide rail; 417-spring B; 418-electromagnet A; 419-circular plate; 501-a cylinder with a square block; 502-spring C; 503-conductive pads; 504-terminals; 505-spring D; 506-an N-type stent; 507-cylindrical rod; 508-dead door of jam; 509-spring E; 510-electromagnet B.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in many ways other than those described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, and fig. 13, a portable socket 2 includes a plug 1, a socket 2, a junction box 3, a door opening and closing mechanism 4, and a circuit mechanism 5, wherein the plug 1 and the socket 2 are used in a matching manner, the plug 1 is a special plug 1, and the junction box 3 is fixedly mounted at the outer side of the socket 2, so as to connect an input circuit to the junction box 3; the switch door mechanism 4 is fixedly arranged inside the socket 2, the plurality of circuit mechanisms 5 are fixedly arranged inside the socket 2, and the circuit mechanisms 5 realize the functions of blocking and electric shock prevention;

in an alternative implementation manner of the embodiment of the invention, except for the same parts as the previous embodiment, the plug 1 comprises an anti-skid insulated switch 101, a connecting rod A102, a sliding block 103, a spring A104, an armature 105, a sliding rail 106 and a cylinder 107; the anti-skid insulation switch 101 is slidably mounted on the outer side of the shell of the plug 1, the anti-skid insulation switch 101 is fixedly connected with a cylinder 107, a zero line contact column, a live line contact column and a ground line contact column are fixedly mounted on the cylinder 107, and the zero line contact column, the live line contact column and the ground line contact column are communicated with an electrical appliance through wires; the connecting rod A102 is fixedly arranged at the bottom end of the cylinder 107, the inclined plane of the sliding block 103 is matched with the inclined plane of the connecting rod A102, the sliding block 103 is slidably arranged on a sliding rail 106, the sliding rail 106 is fixedly arranged inside the shell of the plug 1, the armature 105 and the sliding block 103 are fixedly arranged, one end of the spring A104 is fixedly arranged with the armature 105, and the other end of the spring A104 is fixedly arranged with the shell of the plug 1; the armature 105 is attracted to the outer side by the magnetic force generated by the electromagnet A418, the cylinder 107 moves downwards by a spring in the plug 1, so that the zero line contact column, the fire line contact column and the ground line contact column are respectively contacted and electrified with the zero line coil 401, the fire coil 402 and the rack A403, and when the armature 105 and the electromagnet A418 are damaged or need emergency power-off, the power-off and the connection are completed by manually controlling the anti-skid insulating switch 101; the emergency is conveniently handled, and the safety is improved.

In an optional implementation manner of the embodiment of the invention, except for the same parts as those in the previous embodiment, the door opening and closing mechanism 4 comprises a zero coil 401, a fire coil 402, a rack A403, a rack B404, an insulated gear A405, an insulated gear B406, a bevel gear A407, a bevel gear B408, a belt transmission 409, a gear A410, a rack C411, an internal gear 412, a ring 413, a connecting rod B414, a door opening and closing 415, a plate type sliding rail 416, a spring B417 and an electromagnet A418; the zero coil 401 and the fire coil 402 are fixedly connected, the middle is separated by a joint edge rubber, the lower end of the rack A403 is fixedly arranged on a spring B417, and the lower end of the spring B417 is fixedly arranged in the socket 2; the top end of a rack B404 is fixedly connected with the bottom end of the ignition coil 402, the rack B404 is slidably mounted in a groove in the socket 2, an insulating gear A405 is rotatably mounted on a shaft in the socket 2, the insulating gear A405 is arranged between the rack A403 and the rack B404, and the insulating gear A405 is meshed with the rack A403 and the rack B404; an insulating gear B406 and a bevel gear A407 are fixedly connected through a shaft, the shaft is rotatably mounted in a circular hole of a support frame of the socket 2, the insulating gear B406 is meshed with the rack A403, the bevel gear B408 is rotatably mounted on the shaft inside the socket 2, the bevel gear B408 is meshed with the bevel gear A407, one end of a belt transmission 409 is mounted on a belt pulley at the bottom end of the bevel gear B408, and the other end of the belt transmission 409 is fixedly mounted on a belt pulley at the upper end of the gear A410; the gear A410 is rotatably arranged in a circular hole in the socket 2, the gear A410 is meshed with the rack C411, the rack C411 is slidably arranged on the inner gear 412, the ring 413 is rotatably arranged on the inner side of the inner gear 412, and the ring 413 is meshed with the gear A410; the connecting rod B414 and the rack C411 are fixedly installed, the switch door 415 and the connecting rod B414 are fixedly connected, the switch door 415 is slidably installed in a groove in the plate-shaped sliding rail 416, the plate-shaped sliding rail 416 is fixedly installed below the circular plate 419, and eight electromagnets A418 are arranged on the inner side of the hemispherical surface of the circular plate 419; when the plug 1 is inserted into the hemispherical surface of the socket 2, the electromagnet a418 generates magnetic force to suck the armature 105 to the outside, the spring in the plug 1 enables the cylinder 107 to move downwards, so that the ground wire contact column moves downwards, the ground wire binding post 504 contacts with the upper end of the rack a403 and pushes the rack a403 to move downwards, the insulating gear a405 enables the rack B404 to move upwards, the zero coil 401 and the fire coil 402 move upwards, meanwhile, the rack a403 moves downwards to drive the insulating gear B406 to rotate, the insulating gear B406 drives the bevel gear a407 and further drives the bevel gear B408 to rotate, the bevel gear B408 drives the gear a410 to rotate through the belt transmission 409 so as to drive the ring 413 to drive the rest of the gears a410 to rotate, the rack C411 is driven to move outwards through the gear a410, the effect of opening the switch door 415 is realized, and the zero wire contact column and the fire wire contact column are communicated with the zero coil 401 and the fire coil 402.

In an alternative implementation manner of the embodiment of the invention, except for the same components as those in the previous embodiment, the circuit mechanism 5 comprises a cylinder 501 with a square block, a spring C502, a conductive disc 503, a binding post 504, a spring D505, an N-shaped bracket 506, a cylindrical rod 507, a dead lock door 508, a spring E509 and an electromagnet B510; the square column 501 is slidably mounted on an N-shaped support 506, the top end of a spring C502 is fixedly connected with the bottom end of a disc of the square column 501, the bottom end of the spring C502 is fixedly mounted at the top end of the N-shaped support 506, the N-shaped support 506 is fixedly mounted on a conductive disc 503, and the spring C502 enables the square column 501 to move upwards; the conductive disc 503 is fixedly arranged inside the socket 2, four raised grooves are arranged on the conductive disc 503, one end of the conductive disc 503 is fixedly arranged and communicated with the binding post 504, and the three binding posts 504 are respectively communicated with the zero coil 401, the fire coil 402 and the rack A403; the other end of the conductive disc 503 is connected with the junction box 3 through a circuit; the inner side end of the spring D505 is fixedly arranged on the inner side of the hemispherical surface of the socket 2, the cylindrical rod 507 is arranged in the round hole of the hemispherical surface of the socket 2 in a sliding mode, and the spring D505 is arranged on the outer side of the cylindrical rod 507 in a sliding mode. The outer end of the spring D505 is fixedly connected with the cylindrical rod 507, and the spring D505 generates pulling force to enable the cylindrical rod 507 to move towards the direction of opening and closing the door 415;

the dead lock door 508 is slidably mounted inside the circular plate 419, the spring E509 is fixedly mounted on the dead lock door 508, and the spring E509 generates elastic force to enable the dead lock door 508 to move towards the direction of opening and closing the door 415; when the plug 1 is inserted, the plug will be attached to the spherical ball part of the cylindrical rod 507, so that the cylindrical rod 507 is pushed to expand outwards, the inclined surface of the cylindrical rod 507 is matched with the inclined surface of the cylinder 501 with the square, the cylinder 501 with the square moves downwards, the square part of the cylinder 501 with the square is overlapped with the groove part of the conductive disc 503 to realize the electrifying effect of the conductive disc 503, and when any square part of the cylinder 501 with the square is not overlapped with the groove part of the conductive disc 503, the electrifying effect cannot be realized, so that the electric shock protection function for children is realized.

According to the working principle, the plug 1 is placed on the switch door 415, the locking door 508 is clamped into the groove on the outer side of the plug 1 through the elastic force of the spring E509, and then the plug 1 is fixed, so that the plug 1 is prevented from falling off; the plug 1 is jointed with the spherical part of the cylindrical rod 507 so as to push the cylindrical rod 507 to expand outwards, the inclined surface of the cylindrical rod 507 is jointed with the inclined surface of the cylinder 501 with the square block, the cylinder 501 with the square block moves downwards, the part of the cylinder 501 with the square block is superposed with the groove part of the conductive disc 503 to realize the electrifying effect of the conductive disc 503, when the conductive disc 503 is electrified, the electromagnet A418 generates magnetic force, the armature 105 is attracted towards the outer side through the magnetic force generated by the electromagnet A418, the spring in the plug 1 enables the cylinder 107 to move downwards, so that the ground wire contact column moves downwards, the ground wire binding post 504 is contacted with the upper end of the rack A403 and pushes the rack A403 to move downwards, the rack B404 moves upwards through the insulated gear A405, the zero coil 401 and the fire coil 402 move upwards, meanwhile, the rack A403 moves downwards to drive the insulated gear B406 to rotate, the insulated gear B406 drives the bevel gear A, the bevel gear B408 drives the gear A410 to rotate through the belt transmission 409 so as to drive the circular ring 413 to drive the rest of the gears A410 to rotate, the gear A410 drives the rack C411 to move outwards, the effect of opening the switch door 415 is achieved, and the zero line contact column and the live line contact column are communicated with the zero coil 401 and the fire coil 402, when the armature 105 and the electromagnet A418 are damaged or need emergency power-off, the power-off and the communication are completed through manually controlling the anti-skid insulating switch 101; the emergency is conveniently handled, and the safety is improved.

Claims

1. A portable socket is characterized by comprising a plug (1), a socket (2), a junction box (3), a door opening and closing mechanism (4) and a circuit mechanism (5), wherein the plug (1) and the socket (2) are matched for use, the plug (1) is a special plug (1), the junction box (3) is fixedly arranged on the outer side of the socket (2), and an input circuit is connected into the junction box (3); the switch door mechanism (4) is fixedly arranged inside the socket (2), the plurality of circuit mechanisms (5) are fixedly arranged inside the socket (2), and the circuit mechanisms (5) are used for realizing the functions of blocking and electric shock prevention;

the plug (1) comprises an anti-skid insulating switch (101), a connecting rod A (102), a sliding block (103), a spring A (104), an armature (105), a sliding rail (106) and a cylinder (107); the anti-skid insulation switch (101) is slidably mounted on the outer side of a shell of the plug (1), the anti-skid insulation switch (101) is fixedly connected with a cylinder (107), a zero line contact column, a live line contact column and a ground line contact column are fixedly mounted on the cylinder (107), and the zero line contact column, the live line contact column and the ground line contact column are communicated with an electrical appliance through wires; connecting rod A (102) fixed mounting is in cylinder (107) bottom, slider (103) inclined plane and connecting rod A (102) inclined plane coincide, slider (103) slidable mounting is on slide rail (106), slide rail (106) fixed mounting is in the inside of plug (1) shell, armature (105) and slider (103) fixed mounting, spring A (104) one end and armature (105) fixed mounting, the other end of spring A (104) and the shell of plug (1)

The portable socket according to claim 1, wherein the door opening and closing mechanism (4) comprises a zero coil (401), a fire coil (402), a rack A (403), a rack B (404), an insulated gear A (405), an insulated gear B (406), a bevel gear A (407), a bevel gear B (408), a belt transmission (409), a gear A (410), a rack C (411), an internal gear (412), a ring (413), a connecting rod B (414), a door opening and closing (415), a plate-type sliding rail (416), a spring B (417) and an electromagnet A (418); the zero coil (401) is fixedly connected with the fire coil (402), the middle of the zero coil is separated by a joint edge rubber, the lower end of the rack A (403) is fixedly arranged on a spring B (417), and the lower end of the spring B (417) is fixedly arranged in the socket (2); the top end of a rack B (404) is fixedly connected with the bottom end of a live wire coil (402), the rack B (404) is slidably mounted in a groove of the inner part of the socket (2), an insulating gear A (405) is rotatably mounted on a shaft in the socket (2), the insulating gear A (405) is arranged between the rack A (403) and the rack B (404), and the insulating gear A (405) is meshed with the rack A (403) and the rack B (404); an insulating gear B (406) is fixedly connected with a bevel gear A (407) through a shaft, the shaft is rotatably installed in a circular hole of a support frame of a socket (2), the insulating gear B (406) is meshed with a rack A (403), the bevel gear B (408) is rotatably installed on the shaft inside the socket (2), the bevel gear B (408) is meshed with the bevel gear A (407), one end of a belt transmission (409) is installed on a belt pulley at the bottom end of the bevel gear B (408), and the other end of the belt transmission is fixedly installed on a belt pulley at the upper end of the gear A (410); the gear A (410) is rotatably arranged in a circular hole in the socket (2), the gear A (410) is meshed with the rack C (411), the rack C (411) is slidably arranged on the internal gear (412), the ring (413) is rotatably arranged on the inner side of the internal gear (412), and the ring (413) is meshed with the gear A (410); the connecting rod B (414) and the rack C (411) are fixedly installed, the switch door (415) is fixedly connected with the connecting rod B (414), the switch door (415) is slidably installed in a groove in the plate-shaped sliding rail (416), the plate-shaped sliding rail (416) is fixedly installed below the circular plate (419), and 9 electromagnets A (418) are arranged on the inner side of the hemispherical surface of the circular plate (419); when the plug (1) is inserted into the hemisphere of the socket (2).

2. The adjustable circuit breaker according to claim 1, wherein the circuit mechanism (5) comprises a cylinder (501) with a square block, a spring C (502), a conductive disc (503), a binding post (504), a spring D (505), an N-shaped bracket (506), a cylinder rod (507), a dead door (508), a spring E (509) and an electromagnet B (510); the cylinder (501) with the square blocks is slidably mounted on an N-shaped support (506), the top end of a spring C (502) is fixedly connected with the bottom end of a disc of the cylinder (501) with the square blocks, the bottom end of the spring C (502) is fixedly mounted at the top end of the N-shaped support (506), the N-shaped support (506) is fixedly mounted on a conductive disc (503), and the spring C (502) enables the cylinder (501) with the square blocks to move upwards; the conductive disc (503) is fixedly arranged in the socket (2), four raised grooves are formed in the conductive disc (503), one end of the conductive disc (603) is fixedly arranged and communicated with the binding post (504), and the three binding posts (504) are respectively communicated with the zero coil (401), the fire coil (402) and the rack A (403); the other end of the conductive disc (503) is communicated with the junction box (3) through a circuit; the inner side end of the spring D (505) is fixedly arranged on the inner side of the hemispherical surface of the socket (2), the cylindrical rod (507) is slidably arranged in a round hole of the hemispherical surface of the socket (2), and the spring D (505) is slidably arranged on the outer side of the cylindrical rod (507).

3. The outer side end of the spring D (505) is fixedly connected with the cylindrical rod (507), and the spring D (505) generates pulling force to enable the cylindrical rod (507) to move towards the direction of opening and closing the door (415); the dead lock door (508) is slidably mounted inside the circular plate (419), the spring E (509) is fixedly mounted on the dead lock door (508), and the spring E (509) generates elastic force to enable the dead lock door (508) to move towards the direction of opening and closing the door (415).