CN114447775A

CN114447775A - Dustproof switch board of intelligence convenient to installation

Info

Publication number: CN114447775A
Application number: CN202210117684.8A
Authority: CN
Inventors: 毛珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-05-06

Abstract

The invention relates to an intelligent dustproof power distribution cabinet convenient to install, which comprises a base, wherein a shell is fixedly arranged on the upper end surface of the base, a power distribution cavity is arranged in the shell, installation plates with symmetrical left and right positions are fixedly arranged on the outer end surface of the shell, and an installation device capable of fixing the base on the ground is arranged on the installation plates; the dust collection and distribution cabinet is provided with the dust collection groove, the fan blade and the first thread block, the power distribution cabinet can be fixedly installed on the ground, the installation is convenient and stable, the fan blade rotates to enable air in the power distribution cavity to circulate, dust is filtered out by the dust collection groove, and the dust collection work is realized.

Description

Dustproof switch board of intelligence convenient to installation

Technical Field

The invention relates to the technical field of power distribution cabinets, in particular to an intelligent dustproof power distribution cabinet convenient to install.

Background

Switch board power distribution cabinet and lighting power distribution cabinet, the measurement cabinet, distribution system's final stage equipment, the switch board is motor control center's general name, the switch board uses in the load relatively dispersion, the less occasion in return circuit, motor control center is used for the load to concentrate, the more occasion in return circuit, they distribute the electric energy of a certain circuit of last one-level distribution equipment to load nearby, the switch board is at outdoor work usually, can not block entering such as idle and miscellaneous people, the operational environment is complicated, and the internal circuit is complicated, the long-term deposition unmanned management, and the exterior structure uses the metal product component, switch board poor stability, and the installation is loaded down with trivial details, inside is not equipped with the function of putting out a fire, lead to the loss to aggravate.

Disclosure of Invention

The invention aims to provide an intelligent dustproof power distribution cabinet convenient to install, which is used for overcoming the defects in the prior art.

The intelligent dustproof power distribution cabinet convenient to install comprises a base, wherein a shell is fixedly arranged on the upper end face of the base, a power distribution cavity is arranged in the shell, mounting plates which are symmetrical in left and right positions are fixedly arranged on the outer end face of the shell, a mounting device capable of fixing the base on the ground is arranged on the mounting plates, an annular channel is arranged in the shell, a guide valve extending into the power distribution cavity is fixedly arranged on the lower end face of the annular channel, a net-shaped support plate is fixedly arranged between the left side and the right side of the power distribution cavity, a rotary mounting block penetrating through the upper end face of the shell is fixedly arranged on the top wall of the annular channel, and a rotary device capable of enabling air in the power distribution cavity to circulate is arranged in the rotary mounting block;

an arc-shaped mounting block is fixedly arranged on the right end face of the shell, a sliding device capable of collecting dust in the power distribution cavity is arranged in the arc-shaped mounting block, a driving mounting block is fixedly arranged below the arc-shaped mounting block and on the right end face of the shell, a driving device capable of controlling dust treatment is arranged in the driving mounting block, and an opening and closing device capable of limiting personnel to enter and exit is arranged in the shell;

the distribution chamber roof has set firmly the case of putting out a fire, the incasement that puts out a fire is equipped with the chamber of putting out a fire, the chamber roof of putting out a fire has set firmly the dry powder bag, the chamber diapire of putting out a fire has set firmly and runs through the annular installation piece of terminal surface under the case of putting out a fire, be equipped with in the annular installation piece and make the ejecting device of broken iron of dry powder bag.

As a preferred technical solution of the present invention, the mounting device includes a first motor fixedly arranged on a lower end surface of the mounting plate, the lower end surface of the first motor is rotatably connected with a first threaded shaft, the first threaded shaft is threadedly connected with a first threaded block penetrating through upper and lower end surfaces of the base, a threaded cavity with an upward opening is arranged in the first threaded block, a tapered guide block is fixedly arranged on the lower end surface of the first threaded block, guide sliding chutes which are symmetrical in left and right positions and penetrate through an outer end surface are arranged in the first threaded block, and a guide sliding block slidably connected with the guide sliding chutes is fixedly arranged in the base.

As a preferred technical solution of the present invention, the rotating device includes a rotating cavity disposed in the rotating installation block, first connecting rods are fixedly disposed on left and right walls of the rotating cavity, the first connecting rods are symmetrically disposed, a second motor is fixedly disposed between the first connecting rods, a rotating shaft is rotatably connected to an upper end surface of the second motor, fan blades are fixedly disposed on an upper end surface of the rotating shaft, a connecting pipe penetrating through an outer end surface of the rotating installation block is fixedly disposed on a top wall of the rotating cavity, and a servo motor is used to drive air circulation, so that output power is stable, and air circulation is stable.

As a preferable technical scheme of the invention, the sliding device comprises a sliding cavity arranged in the arc-shaped mounting block, an ash accumulation groove is connected in the sliding cavity in a sliding manner, an ash accumulation cavity with an upward opening is arranged in the ash accumulation groove, a limiting sliding chute penetrating through the lower end face of the arc-shaped mounting block is arranged on the bottom wall of the sliding cavity, dust treatment is realized by utilizing a sliding structure, the controllability is high, and dust leakage caused by machine faults is prevented.

As a preferable technical scheme of the invention, the driving device comprises a driving cavity arranged in the driving installation block, a third motor is fixedly arranged on the left wall of the driving cavity, the right end face of the third motor is rotatably connected with a second threaded shaft, a second threaded block is in threaded connection with the second threaded shaft, a limiting sliding groove is formed in the bottom wall of the driving cavity, a limiting sliding block in sliding connection with the limiting sliding groove is fixedly arranged on the lower end face of the second threaded block, a connecting sliding groove communicated with the limiting sliding groove is formed in the top wall of the driving cavity, a second connecting rod fixedly connected with the dust accumulation groove is fixedly arranged on the upper end face of the second threaded block, the component is pushed out by utilizing a threaded structure, and the pushing distance is accurately controlled.

As a preferred technical scheme of the present invention, the opening and closing device includes an opening and closing cavity which is arranged in the housing and has a symmetrical left and right position, a first spring is fixedly arranged on a rear wall of the opening and closing cavity, an opening and closing block which is slidably connected to the opening and closing cavity is fixedly arranged on a front end surface of the first spring, arc chutes which are symmetrically arranged on left and right walls of the opening and closing cavity are fixedly arranged on a front end surface of the first spring, arc slide blocks which are slidably connected to the arc chutes are fixedly arranged on an outer end surface of the opening and closing block, and a first electromagnet is fixedly arranged on an end surface of the housing which is close to the opening and closing cavity.

According to a preferred technical scheme of the invention, the push-out device comprises an outlet which penetrates through the upper end face and the lower end face of the annular mounting block and is communicated with the fire extinguishing cavity, the annular mounting block is internally provided with push-out cavities with symmetrical left and right positions, the bottom wall of each push-out cavity is fixedly provided with a second spring, the upper end face of each second spring is fixedly provided with a push-out block which is in sliding connection with the corresponding push-out cavity, a puncture needle is fixedly arranged in each push-out block, the left wall and the right wall of each push-out cavity are provided with strip-shaped sliding grooves with symmetrical positions, the outer end face of each push-out block is fixedly provided with a strip-shaped sliding block which is in sliding connection with the corresponding strip-shaped sliding groove, the end face, close to the corresponding push-out cavity, in the annular mounting block, is fixedly provided with a second electromagnet, the electromagnet is used for controlling the sliding of a component to realize the fire extinguishing work, the reaction is rapid, and the work efficiency is high.

The beneficial effects of the invention are:

firstly, the dust collecting device is provided with the dust collecting groove, the fan blade and the first thread block, the power distribution cabinet can be fixedly arranged on the ground, the installation is convenient and stable, the fan blade rotates to enable air in the power distribution cavity to circulate, dust is filtered out by the dust collecting groove, the dust removing work is realized, and the dust collecting device has the advantages of good dust filtering effect and stable structural installation;

secondly, the power distribution cabinet is provided with the puncture needle, the opening and closing block and the dry powder bag, when an ignition point exists in the power distribution cavity, the puncture needle can be pushed out to puncture the dry powder bag, the dry powder is sprayed out to extinguish a fire, and the opening and closing of the opening and closing block controls personnel to enter and exit, so that the safety protection function of the power distribution cabinet is realized, and the power distribution cabinet has the advantages of ensuring the safety of personnel and protecting the internal structure.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic diagram of the structure of the present invention of FIG. 1;

FIG. 3 is a schematic view of the structure at A-A in FIG. 2;

FIG. 4 is a schematic view of the structure of the turning device of FIG. 2;

FIG. 5 is a schematic view of the drive arrangement of FIG. 2;

FIG. 6 is a schematic view of the structure of the mounting device of FIG. 2;

FIG. 7 is a schematic view of the structure at B-B in FIG. 6;

fig. 8 is a schematic view of the structure of the sliding device in fig. 2.

Detailed Description

For purposes of making the objects and advantages of the present invention more apparent, the following detailed description of the present invention will be made in conjunction with the examples, it being understood that the following text is only used to describe one kind of intelligent dustproof power distribution cabinet or several specific embodiments of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention, as used herein, the terms up, down, left and right are not limited to their strict geometric definitions, but include tolerances for machining or human error rationality and inconsistency, and the following detailed description of the specific features of the intelligent dustproof power distribution cabinet for easy installation:

referring to fig. 1 to 8, an intelligent dustproof power distribution cabinet convenient to install according to an embodiment of the present invention includes a base 15, a housing 11 is fixedly installed on an upper end surface of the base 15, a power distribution cavity 13 is installed in the housing 11, mounting plates 14 symmetric with respect to left and right positions are fixedly installed on an outer end surface of the housing 11, a mounting device 65 capable of fixing the base 15 on the ground is installed on the mounting plates 14, an annular channel 12 is installed in the housing 11, a guide valve 18 extending into the power distribution cavity 13 is fixedly installed on a lower end surface of the annular channel 12, a mesh support plate 17 is fixedly installed between left and right sides of the power distribution cavity 13, a rotating installation block 26 penetrating through the upper end surface of the housing 11 is fixedly installed on a top wall of the annular channel 12, and a rotating device 66 capable of circulating air in the power distribution cavity 13 is installed in the rotating installation block 26;

an arc-shaped mounting block 28 is fixedly arranged on the right end face of the outer shell 11, a sliding device 68 capable of collecting dust in the power distribution cavity 13 is arranged in the arc-shaped mounting block 28, a driving mounting block 19 is fixedly arranged below the arc-shaped mounting block 28 and on the right end face of the outer shell 11, a driving device 67 capable of controlling dust treatment is arranged in the driving mounting block 19, and an opening and closing device 64 capable of limiting personnel to enter and exit is arranged in the outer shell 11;

the top wall of the power distribution cavity 13 is fixedly provided with a fire extinguishing chamber 55, a fire extinguishing cavity 52 is arranged in the fire extinguishing chamber 55, the top wall of the fire extinguishing cavity 52 is fixedly provided with a dry powder bag 54, the bottom wall of the fire extinguishing cavity 52 is fixedly provided with an annular mounting block 53 penetrating through the lower end face of the fire extinguishing chamber 55, and a push-out device 69 capable of breaking iron in the dry powder bag 54 is arranged in the annular mounting block 53.

In other embodiments, the mounting device 65 includes a first motor 46 fixed on the lower end surface of the mounting plate 14, a first threaded shaft 49 is rotatably connected to the lower end surface of the first motor 46, a first threaded block 47 penetrating through the upper and lower end surfaces of the base 15 is threadedly connected to the first threaded shaft 49, a threaded cavity 48 with an upward opening is formed in the first threaded block 47, a tapered guide block 16 is fixed on the lower end surface of the first threaded block 47, a guide sliding slot 50 which is symmetrical in left and right positions and penetrates through the outer end surface is formed in the first threaded block 47, a guide sliding block 51 slidably connected with the guide sliding slot 50 is fixed in the base 15, the first motor 46 is started to drive the first threaded shaft 49 to rotate, the first threaded shaft 49 rotates to drive the first threaded block 47 to move, the guide sliding block 51 is limited by the guide sliding slot 50, the first threaded block 47 moves to drive the tapered guide block 16 to move, the conical guide block 16 moves to be fixed with the ground.

In other embodiments, the rotating device 66 includes a rotating cavity 23 disposed in the rotating installation block 26, first connecting rods 36 are fixedly disposed on left and right walls of the rotating cavity 23, the first connecting rods 36 are fixedly disposed at symmetrical positions, a second motor 24 is fixedly disposed between the first connecting rods 36, a rotating shaft 37 is rotatably connected to an upper end surface of the second motor 24, a fan blade 25 is fixedly disposed on an upper end surface of the rotating shaft 37, a connecting pipe 27 penetrating through an outer end surface of the rotating installation block 26 is fixedly disposed on a top wall of the rotating cavity 23, the second motor 24 is started to drive the rotating shaft 37 to rotate, the rotating shaft 37 rotates to drive the fan blade 25 to rotate, and the fan blade 25 rotates to suck air in the power distribution cavity 13 through the annular passage 12 and output the air through the connecting pipe 27.

In other embodiments, the sliding device 68 includes a sliding cavity 22 arranged in the arc-shaped mounting block 28, the sliding cavity 22 is connected with an ash deposition groove 21 in a sliding manner, an ash deposition cavity 29 with an upward opening is arranged in the ash deposition groove 21, a limiting sliding chute 39 penetrating through the lower end surface of the arc-shaped mounting block 28 is arranged on the bottom wall of the sliding cavity 22, air in the power distribution cavity 13 enters the ash deposition cavity 29 through a connecting pipeline 27, dust is filtered in the ash deposition cavity 29, the ash deposition groove 21 is pushed out to clean dust in the ash deposition cavity 29, and the ash deposition groove 21 is limited by the sliding cavity 22.

In other embodiments, the driving device 67 includes a driving cavity 20 disposed in the driving installation block 19, a third motor 41 is fixedly disposed on a left wall of the driving cavity 20, a second threaded shaft 45 is rotatably connected to a right end surface of the third motor 41, a second threaded block 42 is threadedly connected to the second threaded shaft 45, a limit sliding groove 44 is disposed on a bottom wall of the driving cavity 20, a limit sliding block 43 slidably connected to the limit sliding groove 44 is fixedly disposed on a lower end surface of the second threaded block 42, a connecting sliding groove 40 communicated with the limit sliding groove 39 is disposed on a top wall of the driving cavity 20, a second connecting rod 38 fixedly connected to the dust collection groove 21 is fixedly disposed on an upper end surface of the second threaded block 42, the third motor 41 is started to drive the second threaded shaft 45 to rotate, the second threaded shaft 45 drives the second threaded block 42 to move, the limit sliding block 43 is limited by the limit sliding groove 44, the second screw block 42 moves to drive the second connecting rod 38 to slide in the connecting chute 40 and the limiting chute 39, and the second connecting rod 38 slides to drive the ash deposition groove 21 to slide.

In other embodiments, the opening and closing device 64 includes an opening and closing cavity 31 disposed in the housing 11 and having symmetrical left and right positions, a first spring 30 is fixedly disposed on a rear wall of the opening and closing cavity 31, an opening and closing block 32 slidably connected to the opening and closing cavity 31 is fixedly disposed on a front end surface of the first spring 30, arc chutes 34 having symmetrical positions are disposed on left and right walls of the opening and closing cavity 31, an arc sliding block 33 slidably connected to the arc chute 34 is fixedly disposed on an outer end surface of the opening and closing block 32, a first electromagnet 35 is fixedly disposed on an end surface of the housing 11 close to the opening and closing cavity 31, the first electromagnet 35 starts to control the first spring 30 to stretch, the first spring 30 stretches to drive the opening and closing block 32 to slide, the arc sliding block 33 is limited by the arc chute 34, and the opening and closing block 32 slides to limit people to enter and exit.

In other embodiments, the pushing device 69 includes an outlet 63 penetrating through the upper and lower end surfaces of the annular mounting block 53 and communicating with the fire extinguishing chamber 52, a pushing chamber 60 with symmetrical left and right positions is arranged in the annular mounting block 53, a second spring 56 is fixedly arranged on the bottom wall of the pushing chamber 60, a pushing block 61 slidably connected with the pushing chamber 60 is fixedly arranged on the upper end surface of the second spring 56, a puncture needle 62 is fixedly arranged in the pushing block 61, bar-shaped sliding grooves 58 with symmetrical positions are arranged on the left and right walls of the pushing chamber 60, a bar-shaped sliding block 59 slidably connected with the bar-shaped sliding grooves 58 is fixedly arranged on the outer end surface of the pushing block 61, a second electromagnet 57 is fixedly arranged on the end surface of the annular mounting block 53 close to the pushing chamber 60, the second electromagnet 57 starts to drive the second spring 56 to stretch, the second spring 56 stretches to drive the pushing block 61 to slide, and the bar-shaped sliding block 59 is limited by the bar-shaped sliding grooves 58, the pushing block 61 slides to drive the puncture needle 62 to extend out to puncture the dry powder bag 54, and the dry powder is output from the outlet 63 to extinguish the fire.

The invention discloses an intelligent dustproof power distribution cabinet convenient to install, which comprises the following working procedures:

when fixing work is required, the first motor 46 is started to drive the first threaded shaft 49 to rotate, the first threaded shaft 49 rotates to drive the first threaded block 47 to move, the guide sliding block 51 is limited by the guide sliding groove 50, the first threaded block 47 moves to drive the conical guide block 16 to move, and the conical guide block 16 moves to be fixed with the ground;

when dust removal is needed, the second motor 24 is started to drive the rotating shaft 37 to rotate, the rotating shaft 37 drives the fan blades 25 to rotate, the fan blades 25 rotate to suck air in the power distribution cavity 13 out through the annular channel 12 and output the air into the dust deposition cavity 29 through the connecting pipeline 27, the air is filtered out through the dust deposition groove 21, and dust is retained in the dust deposition cavity 29;

when cleaning work is required, the third motor 41 is started to drive the second threaded shaft 45 to rotate, the second threaded shaft 45 rotates to drive the second threaded block 42 to move, the second threaded block 42 moves to drive the second connecting rod 38 to slide in the connecting sliding groove 40 and the limiting sliding groove 39, the second connecting rod 38 slides to drive the dust deposition groove 21 to slide, and after the dust deposition groove 21 is pushed out, dust in the dust deposition cavity 29 is manually cleaned;

when the opening and closing work is required, the first electromagnet 35 is started to control the first spring 30 to stretch, the first spring 30 stretches to drive the opening and closing block 32 to slide, and the opening and closing block 32 slides to limit personnel to enter and exit;

when the work of putting out a fire is carried out to needs, detect to have the source of a fire in the distribution chamber 13, second electro-magnet 57 starts and drives second spring 56 flexible, and second spring 56 is flexible to drive and pushes away the piece 61 and slides, pushes away the piece 61 and slides and drive pjncture needle 62 and stretch out and puncture dry powder bag 54, and the dry powder is put out a fire from export 63 output.

While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. Accordingly, the scope of the present invention should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.

Claims

1. The utility model provides an intelligence switch board that prevents dust convenient to installation, includes base (15), its characterized in that: a shell (11) is fixedly arranged on the upper end face of the base (15), a power distribution cavity (13) is arranged in the shell (11), mounting plates (14) which are symmetrical in left and right positions are fixedly arranged on the outer end face of the shell (11), a mounting device (65) capable of enabling the base (15) to be fixed on the ground is arranged on the mounting plates (14), an annular channel (12) is arranged in the shell (11), a guide valve (18) extending into the power distribution cavity (13) is fixedly arranged on the lower end face of the annular channel (12), a net-shaped supporting plate (17) is fixedly arranged between the left side and the right side of the power distribution cavity (13), a rotating mounting block (26) penetrating through the upper end face of the shell (11) is fixedly arranged on the top wall of the annular channel (12), and a rotating device (66) capable of enabling air in the power distribution cavity (13) to circulate is arranged in the rotating mounting block (26);

an arc-shaped mounting block (28) is fixedly arranged on the right end face of the shell (11), a sliding device (68) capable of collecting dust in the power distribution cavity (13) is arranged in the arc-shaped mounting block (28), a driving mounting block (19) is fixedly arranged below the arc-shaped mounting block (28) and on the right end face of the shell (11), a driving device (67) capable of controlling dust treatment is arranged in the driving mounting block (19), and an opening and closing device (64) capable of limiting personnel to enter and exit is arranged in the shell (11);

distribution chamber (13) roof has set firmly fire extinguishing chamber (55), be equipped with fire extinguishing chamber (52) in fire extinguishing chamber (55), fire extinguishing chamber (52) roof has set firmly dry powder bag (54), fire extinguishing chamber (52) diapire has set firmly to run through annular installation piece (53) of terminal surface under fire extinguishing chamber (55), be equipped with in annular installation piece (53) and make the push-off device (69) of broken iron of dry powder bag (54).

2. The intelligent dustproof power distribution cabinet convenient to install according to claim 1, characterized in that: installation device (65) including set firmly in first motor (46) of terminal surface under mounting panel (14), terminal surface rotates under first motor (46) and is connected with first screw thread axle (49), threaded connection has run through on first screw thread axle (49) first screw thread piece (47) of terminal surface about base (15), be equipped with ascending screw thread chamber of opening (48) in first screw thread piece (47), terminal surface has set firmly toper guide block (16) under first screw thread piece (47), be equipped with in first screw thread piece (47) about the symmetry and run through guide runner (50) of outer terminal surface, base (15) internal set have with guide runner (50) sliding connection's guide slide block (51).

3. The intelligent dustproof power distribution cabinet convenient to install according to claim 1, characterized in that: rotating device (66) including set up in rotate rotation chamber (23) in installation piece (26), the head rod (36) of position symmetry have set firmly on the wall about rotation chamber (23), second motor (24) have set firmly between head rod (36), second motor (24) up end rotates and is connected with axis of rotation (37), axis of rotation (37) up end has set firmly flabellum (25), it has set firmly to run through to rotate chamber (23) roof rotate connecting tube (27) of installation piece (26) outer terminal surface.

4. The intelligent dustproof power distribution cabinet convenient to install according to claim 1, characterized in that: slider (68) including establishing as to slip chamber (22) in arc installation piece (28), sliding connection has deposition groove (21) in slip chamber (22), be equipped with opening ascending deposition chamber (29) in deposition groove (21), slip chamber (22) diapire is equipped with and runs through restriction spout (39) of terminal surface under arc installation piece (28).

5. The intelligent dustproof power distribution cabinet convenient to install according to claim 4, characterized in that: drive arrangement (67) including set up in drive chamber (20) in drive installation piece (19), drive chamber (20) left wall has set firmly third motor (41), third motor (41) right-hand member face rotates and is connected with second screw thread axle (45), threaded connection has second screw thread piece (42) on second screw thread axle (45), drive chamber (20) diapire is equipped with spacing spout (44), second screw thread piece (42) lower extreme face set firmly with spacing spout (44) sliding connection's spacing slider (43), drive chamber (20) roof be equipped with connect spout (40) of restriction spout (39) intercommunication, second screw thread piece (42) up end set firmly with second connecting rod (38) of deposition groove (21) fixed connection.

6. The intelligent dustproof power distribution cabinet convenient to install according to claim 1, characterized in that: the opening and closing device (64) comprises an opening and closing cavity (31) which is arranged in the shell (11) and is symmetrical in left and right positions, a first spring (30) is fixedly arranged on the rear wall of the opening and closing cavity (31), an opening and closing block (32) which is connected with the opening and closing cavity (31) in a sliding mode is fixedly arranged on the front end face of the first spring (30), arc sliding grooves (34) which are symmetrical in position are formed in the left and right walls of the opening and closing cavity (31), arc sliding blocks (33) which are connected with the arc sliding grooves (34) in a sliding mode are fixedly arranged on the outer end face of the opening and closing block (32), and a first electromagnet (35) is fixedly arranged on the end face, close to the opening and closing cavity (31), in the shell (11).

7. The intelligent dustproof power distribution cabinet convenient to install according to claim 1, characterized in that: the push-out device (69) comprises an outlet (63) which penetrates through the upper end face and the lower end face of the annular mounting block (53) and is communicated with the fire extinguishing cavity (52), a push-out cavity (60) with symmetrical left and right positions is arranged in the annular mounting block (53), a second spring (56) is fixedly arranged on the bottom wall of the push-out cavity (60), a push-out block (61) which is connected with the push-out cavity (60) in a sliding manner is fixedly arranged on the upper end face of the second spring (56), a puncture needle (62) is fixedly arranged in the push-out block (61), a strip-shaped sliding groove (58) with symmetrical positions is arranged on the left wall and the right wall of the push-out cavity (60), a strip-shaped sliding block (59) which is connected with the strip-shaped sliding groove (58) in a sliding manner is fixedly arranged on the outer end face of the push-out cavity (60), and a second electromagnet (57) is fixedly arranged on the inner end face of the annular mounting block (53).