CN114671122B

CN114671122B - Privacy protection device and method for service data of electric power Internet of things

Info

Publication number: CN114671122B
Application number: CN202210150817.1A
Authority: CN
Inventors: 张方缘; 李双佼; 祁军成; 王洪涛; 王洪梅
Original assignee: North China Electric Power University
Current assignee: North China Electric Power University
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2023-04-28
Anticipated expiration: 2042-02-18
Also published as: CN114671122A

Abstract

The invention discloses a privacy protection device and a privacy protection method for service data of an electric power Internet of things, and relates to the technical field of privacy protection devices. Through the closing plate that all sets up in four getting and putting mouths, and through the gangbar that sets up in the top side of closing plate with go up the gangbar and be connected of gangbar down, be connected with the diagonal bar through the L shape locating lever that sets up, simultaneously through the high middle part high position that sets up the top of L shape locating lever and diagonal bar, under the drive of last gangbar and lower gangbar, can realize that the closing plate rotates with the top of L shape locating lever and diagonal bar's butt joint department as the axle center, make four closing plates upwards side rotation, realize opening four getting and putting mouths of guard box, overhaul the maintenance to the server in the guard box.

Description

Privacy protection device and method for service data of electric power Internet of things

Technical Field

The invention relates to a data privacy protection device, in particular to a device and a method for protecting the privacy of service data of an electric power internet of things.

Background

At present, with the development of the internet of things technology, the more the original electric power system introduces the internet of things technology to construct an electric power internet of things system so as to provide more convenient and flexible electric power operation management, the electric power internet of things is an intelligent service system which surrounds all links of the electric power system, fully uses modern information technologies such as mobile interconnection, artificial intelligence and the like and advanced communication technologies, realizes all-things interconnection and man-machine interaction of all links of the electric power system, and has the characteristics of comprehensive state perception, efficient information processing and convenient and flexible application. In the electric power internet of things, collected electricity data are uploaded to a background server for data management and other system services, and the servers for storing the data need to ensure the safety of the servers in operation, so that the servers can be stored by using a privacy protection device to ensure the normal operation of the data servers;

the current privacy protection device for the data server has the following problems when in use:

1. the current data server privacy protection device is in order to protect the safety of the server, the protection device is integrally arranged, only one side of the access port is reserved for installation and maintenance, so that the access port is inconvenient to maintain in other directions except for one side of the access port during later maintenance and maintenance, and the maintenance efficiency is reduced.

2. The existing privacy protection device for the data server is not high in linkage performance during use and operation, so that inconvenience exists during use, and the privacy protection device cannot be used for daily detection and maintenance.

Disclosure of Invention

The invention aims to provide a privacy protection device and a privacy protection method for service data of an electric power Internet of things, which aim to solve the problems that in order to protect the safety of a server, most of the existing privacy protection devices for data servers are provided in the background art, the protection devices are integrally arranged, only one side of a taking and placing port is reserved for installation and maintenance, so that maintenance and maintenance in the later period are inconvenient for maintenance and maintenance in other directions except for the side of the taking and placing port, the maintenance efficiency is reduced, and the linkage is not high during use and operation, so that inconvenience exists during use, and the use of daily detection and maintenance cannot be satisfied.

In order to achieve the above purpose, the present invention provides the following technical solutions: the privacy protection device and the privacy protection method for the service data of the electric power Internet of things comprise a protection box, wherein four side walls of the protection box are provided with picking and placing openings, each picking and placing opening is provided with a sealing plate, two sides of each picking and placing opening are provided with clamping grooves, sealing strips are fixedly arranged on two sides of one side of the sealing plate opposite to the picking and placing opening, two sealing strips are directly in butt joint with the two clamping grooves one by one, four top ends of the sealing plate are fixedly provided with L-shaped positioning rods, the top ends of the L-shaped positioning rods are provided with grooves, a linkage shaft is fixedly arranged in the grooves, the linkage shaft is sleeved with round holes formed in the top sides of diagonal rods, the diagonal rods are fixedly arranged at the top ends of the protection box, the middle parts of the top ends of the four sealing plates are fixedly provided with the linkage rods, the top ends of the protection box are fixedly provided with the protection box, swing grooves are formed in the left side and the right side of the four side walls of the protective box, linkage grooves are formed in the upper middle parts of the four side walls of the protective box, L-shaped positioning rods are correspondingly arranged with the swing grooves, the linkage grooves are correspondingly arranged with the linkage grooves, upper linkage ropes and lower linkage ropes are respectively fixedly arranged at the upper ends and the lower ends of the opposite sides of the four linkage rods, an upper rolling disc is fixedly arranged at the other end of the upper linkage ropes, the other end of the lower linkage ropes is rolled on the lower rolling disc, ports of the lower linkage ropes are fixedly arranged on the lower rolling disc, the upper rolling disc and the lower rolling disc are respectively fixedly arranged at the upper side and the lower side of a supporting shaft, the upper ends and the lower ends of the four supporting shafts are respectively and rotatably connected with the inner wall of the top side of the protective box and the top end of the protective box through bearings, driven gears are fixedly arranged at the upper middle parts of the four supporting shafts, an electric push rod is fixedly arranged at the middle parts of the top end of the protective box, the motor-driven push rod's top is fixed and is provided with the cross shaped plate, the top fixed mounting of cross shaped plate has servo motor, fixed drive gear that is provided with on servo motor's the output shaft, control panel is installed to the front side corner of protective housing, the bottom mounting of protective housing is provided with the base, two T-shaped grooves have been seted up to the bottom side inner wall of protective housing, two equal sliding in the T-shaped groove is provided with T shape slide, two the bottom rear side of T shape slide is all fixed and is provided with the stopper, and two stopper and the spacing groove sliding connection that two T-shaped groove bottom were seted up, two the fixed same bottom plate that is provided with in top side of T shape slide, the fixed riser that is provided with of upper surface of bottom plate, both sides are all fixed and are provided with the loading board on the riser.

As a preferable technical scheme of the invention, the height of the butt joint part of the top end of the L-shaped positioning rod and the inclined rod is arranged at the middle height position of the linkage rod.

As a preferable technical scheme of the invention, the upper linkage rope is wound on the upper winding disc in a clockwise direction, and the lower linkage rope is wound on the lower winding disc in a counterclockwise direction.

As a preferable technical scheme of the invention, clamping toothed bars are fixedly arranged on four side edges of the cross-shaped plate, and the four clamping toothed bars are respectively meshed with four driven gears.

As a preferable technical scheme of the invention, the heights of the four driven gears are clockwise from high to low, and the heights of the four clamping toothed bars are clockwise from high to low.

As a preferable technical scheme of the invention, the four clamping toothed bars arranged in different heights are respectively clamped with the four driven gears arranged in different heights in a one-to-one correspondence manner, the highest clamping toothed bar is clamped with the highest driven gear, and the bottommost clamping toothed bar is clamped with the bottommost driven gear.

As a preferable technical scheme of the invention, the bottom side wall of the protection box is provided with a plurality of heat dissipation holes.

As a preferred technical scheme of the invention, the application method comprises the following steps:

s1: through the taking and placing ports arranged on the side wall of the protection box, the four sealing plates are rotated upwards through the sealing plates arranged in the four taking and placing ports, the four taking and placing ports of the protection box are opened, a server in the protection box is overhauled and maintained, a part of a bottom plate is pulled out of the protection box through the taking and placing ports, and an Internet of things service data server is installed on a bearing plate;

s2: the servo motor is driven to descend through the electric push rod, the transmission gear descends to be meshed with the four driven gears in sequence, when the transmission gear is meshed with the driven gears, the supporting shaft on the side is driven to rotate, the upper winding disc winds the upper linkage rope, the lower winding disc is used for paying out the lower linkage rope, at the moment, the upper linkage rope pulls the top side of the linkage rod to rotate in the linkage groove, the lower linkage rope paying out part pulls out the linkage groove along with the swinging of the linkage rod, the sealing plate rotates by taking the butt joint position of the top end of the L-shaped positioning rod and the inclined rod as the axis, the four sealing plates are opened and closed as required, the linkage performance is stronger, and the requirement in detection and maintenance can be met.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the server can be stored through the arranged protection box, the bottom plate, the vertical plate and the bearing plate which are arranged in the protection box, the four taking and placing openings are formed in the side wall of the protection box, meanwhile, the four taking and placing openings of the protection box are opened through the sealing plates which are arranged in the four taking and placing openings, and the server in the protection box is conveniently overhauled and maintained in the later period without generating overhauling dead angles by connecting the arranged L-shaped positioning rod with the inclined rod, and meanwhile, the abutting joint of the top end of the L-shaped positioning rod and the inclined rod is arranged at the middle height position of the inclined rod, so that the sealing plates can rotate by taking the abutting joint of the top end of the L-shaped positioning rod and the inclined rod as the axle center under the pulling of the upper connecting rod and the lower connecting rod, and the four sealing plates can rotate upwards, the overhauling dead angles are conveniently carried out on the server in the protection box in the later period, and the other positions on one side of the taking and placing openings are not convenient to carry out overhauling and maintenance in the later period.

2. According to the invention, through the mutual coordination among the upper rolling disc, the lower rolling disc, the swinging groove, the linkage groove, the supporting shaft, the driven gear, the electric push rod, the cross-shaped plate, the clamping toothed bar, the servo motor and the transmission gear, when the electric push rod drives the servo motor to lift, the transmission gear can be meshed or not meshed with the four driven gears in sequence, when the transmission gear is meshed with the driven gear, the supporting shaft at the side can be driven to rotate, at the moment, the upper rolling disc can roll the upper linkage rope, the lower rolling disc can pay out the lower linkage rope, at the moment, the upper linkage rope pulls the top side of the linkage rod to rotate in the linkage groove, so that the current sealing plate can rotate by taking the butt joint position of the top end of the L-shaped positioning rod and the inclined rod as an axle center, the four sealing plates can be opened and closed as required, the linkage performance is stronger, and the requirement in detection maintenance can be met.

Drawings

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

FIG. 2 is a schematic view of a three-dimensional partial cross-sectional structure of the present invention;

FIG. 3 is a schematic bottom perspective view of the present invention;

FIG. 4 is a schematic perspective view of a sealing plate according to the present invention;

FIG. 5 is a schematic diagram of a meshing perspective of a driving gear and a driven gear according to the present invention;

FIG. 6 is a schematic perspective view of a cross-shaped plate according to the present invention;

fig. 7 is a schematic perspective view of a base plate according to the present invention.

In the figure: the device comprises a protection box 1, a picking and placing port 2, a carrying plate 3, a clamping groove 4, a sealing plate 5, a sealing strip 6, a protection box 7, a positioning rod 8L, a groove 9, a linkage shaft 10, an inclined rod 11, a linkage rod 12, an upper linkage rope 13, a lower linkage rope 14, an upper winding disc 15, a lower winding disc 16, a swinging groove 17, a linkage groove 18, a supporting shaft 19, a driven gear 20, an electric push rod 21, a cross plate 22, a clamping toothed bar 23, a servo motor 24, a transmission gear 25, a control panel 26, a base 27, a groove 28T, a sliding plate 29T, a bottom plate 30, a limiting block 31, a heat dissipation hole 32 and a vertical plate 33.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, the invention provides a privacy protection device and method for service data of an electric power internet of things, comprising a protection box 1, wherein four side walls of the protection box 1 are respectively provided with a picking and placing port 2, each picking and placing port 2 is adapted with a sealing plate 5, both sides of each picking and placing port 2 are respectively provided with a clamping groove 4, both sides of one side of each sealing plate 5 opposite to the picking and placing port 2 are fixedly provided with sealing strips 6, the two sealing strips 6 are directly and one by one butt-jointed with the two clamping grooves 4, both sides of the top ends of the four sealing plates 5 are respectively fixedly provided with an L-shaped positioning rod 8, the top ends of the L-shaped positioning rods 8 are respectively provided with a groove 9, a linkage shaft 10 is fixedly arranged in the grooves 9, the linkage shaft 10 is sleeved with round holes formed in the top sides of the inclined rods 11, the inclined rods 11 are fixedly arranged at the top ends of the protection box 1, the middle parts of the top ends of the four sealing plates 5 are fixedly provided with a linkage rod 12, the top end of the protection box 1 is fixedly provided with a protection box 7, the left side and the right side of the four side walls of the protection box 7 are respectively provided with a swinging groove 17, the upper middle parts of the four side walls of the protection box 7 are respectively provided with a linkage groove 18, the L-shaped positioning rods 8 are correspondingly arranged with the swinging grooves 17, the linkage grooves 18 are correspondingly arranged with the linkage grooves 18, the upper and lower ends of the opposite sides of the four linkage rods 12 are respectively fixedly provided with an upper linkage rope 13 and a lower linkage rope 14, the other end of the upper linkage rope 13 is fixedly provided with an upper winding disc 15, the other end of the lower linkage rope 14 is wound on a lower winding disc 16, the ports of the lower linkage rope 14 are fixedly arranged on the lower winding disc 16, the upper winding disc 15 and the lower winding disc 16 are respectively fixedly arranged on the upper and lower sides of the supporting shafts 19, the upper and lower ends of the four supporting shafts 19 are respectively and rotatably connected with the inner wall of the top side of the protection box 7 and the top end of the protection box 1 through bearings, the upper middle parts of the four support shafts 19 are fixedly provided with driven gears 20, electric push rods 21 are fixedly arranged in the middle parts of the tops of the protection boxes 1, cross-shaped plates 22 are fixedly arranged at the tops of the electric push rods 21, servo motors 24 are fixedly arranged at the tops of the cross-shaped plates 22, the servo motors 24 are driven to descend through the arranged electric push rods 21, transmission gears 25 can be meshed with the four driven gears 20 in sequence in descending mode, transmission gears 25 are fixedly arranged on output shafts of the servo motors 24, control panels 26 are arranged at corners of the front sides of the protection boxes 7, bases 27 are fixedly arranged at the bottom ends of the protection boxes 1, two T-shaped grooves 28 are formed in the inner walls of the bottom sides of the protection boxes 7, T-shaped sliding plates 29 are fixedly arranged in the two T-shaped grooves 28, limiting blocks 31 are fixedly arranged at the bottoms of the two T-shaped sliding plates 29, the two limiting blocks 31 are in sliding connection with limiting grooves formed in the bottoms of the two T-shaped grooves 28, the top sides of the two T-shaped sliding plates 29 are fixedly provided with the same bottom plates 30, vertical plates 33 are fixedly arranged on the upper surfaces of the bottom plates 30, and bearing plates 3 are fixedly arranged on the two sides of the vertical plates 33.

The height of the joint of the top end of the L-shaped positioning rod 8 and the inclined rod 11 is set at the middle height of the linkage rod 12.

The upper linkage rope 13 is wound on the upper winding disc 15 in a clockwise direction, and the lower linkage rope 14 is wound on the lower winding disc 16 in a counterclockwise direction.

The four sides of the cross-shaped plate 22 are fixedly provided with clamping toothed bars 23, the four clamping toothed bars 23 are respectively meshed with the four driven gears 20, the four clamping toothed bars 23 can be meshed with the four driven gears 20, and then the clamping toothed bars 23 can fix the driven gears 20 when the transmission gears 25 are not meshed with the driven gears 20.

The height between four driven gears 20 is clockwise from high to low setting, and the height between four joint rack bars 23 is clockwise from high to low setting, and its effect lies in can making four joint rack bars 23 along with drive gear 25's lift, and drive gear 25 and driven gear 20 separation back, joint rack bar 23 can with driven gear 20 joint, avoid driven gear 20 to take place the self-transmission, and then guarantee that seal plate 5 is firm to seal in getting and putting mouth 2.

The clamping toothed bars 23 arranged in different heights are respectively clamped with the driven gears 20 arranged in different heights in a one-to-one correspondence manner, the highest clamping toothed bar 23 is clamped with the highest driven gear 20, and the lowest clamping toothed bar 23 is clamped with the lowest driven gear 20.

The bottom side wall of the protection box 1 is provided with a plurality of heat dissipation holes 32.

The using method comprises the following steps:

s1: through the taking and placing ports 2 formed in the side wall of the protection box 1, and through the sealing plates 5 arranged in the four taking and placing ports 2, and through the connection of the linkage rod 12 arranged at the top side of the sealing plate 5, the upper linkage rope 13 and the lower linkage rope 14, and through the connection of the L-shaped positioning rod 8 and the inclined rod 11, and through the arrangement of the height of the joint of the top end of the L-shaped positioning rod 8 and the inclined rod 11 at the middle height position of the linkage rod 12, the sealing plates 5 can rotate by taking the joint of the top end of the L-shaped positioning rod 8 and the inclined rod 11 as the axle center under the driving of the upper linkage rope 13 and the lower linkage rope 14, so that the four sealing plates 5 rotate upwards, the four taking and placing ports 2 of the protection box 1 are opened, the server in the protection box 1 is overhauled and maintained, and meanwhile, a part of the bottom plate 30 can be pulled out of the protection box 1 through the taking and placing ports 2, and the internet of things service data server can be installed on the bearing plate 3;

s2: the servo motor 24 is driven to descend through the electric push rod 21, the transmission gear 25 is meshed with the four driven gears 20 in sequence, when the transmission gear 25 is meshed with the driven gears 20, the supporting shaft 19 on the side can be driven to rotate, the upper winding disc 15 can wind the upper linkage rope 13, the lower winding disc 16 can pay out the lower linkage rope 14, at the moment, the upper linkage rope 13 pulls the top side of the linkage rod 12 to rotate in the linkage groove 18, the portion paid out by the lower linkage rope 14 pulls out the linkage groove 18 along with the swinging of the linkage rod 12, and further the sealing plate 5 can rotate by taking the butt joint position of the top end of the L-shaped positioning rod 8 and the inclined rod 11 as an axle center, so that the four sealing plates 5 can be opened and closed as required, the linkage performance is stronger, and the requirement in detection and maintenance can be met.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a privacy protection device of electric power thing networking business data, includes guard box (1), its characterized in that: get and put mouth (2) have all been seted up on four lateral walls of guard box (1), every get and put mouth (2) all be fit with closing plate (5), every get both sides of putting mouth (2) all are offered joint groove (4), sealing plate (5) are all fixed to be provided with sealing strip (6) with get one side both sides that put mouth (2) are relative, and two sealing strips (6) and two joint groove (4) direct butt joint setting one by one, four the top both sides of closing plate (5) are all fixed to be provided with L shape locating lever (8), recess (9) have been seted up on the top of L shape locating lever (8), recess (9) internal fixation is provided with linkage axle (10), the round hole that linkage axle (10) and diagonal (11) top side were seted up cup joints, and diagonal (11) fixed the top of setting guard box (1), four the top middle part of sealing plate (5) is fixed to be provided with gangbar (12), the top of guard box (1) is fixed to be provided with guard box (7), four on the side wall (7) are all set up with the side wall (18) and are corresponding to the side wall (18) of swing, link groove (18) are all set up on the side wall (18), the four upper and lower ends of the opposite sides of the linkage rod (12) are respectively fixedly provided with an upper linkage rope (13) and a lower linkage rope (14), the other ends of the upper linkage ropes (13) are fixedly provided with an upper rolling disc (15), the other ends of the lower linkage ropes (14) are rolled on the lower rolling disc (16), the ports of the lower linkage ropes (14) are fixedly arranged on the lower rolling disc (16), the upper rolling disc (15) and the lower rolling disc (16) are respectively fixedly arranged on the upper side and the lower side of a supporting shaft (19), the upper and lower ends of the four supporting shafts (19) are respectively and rotatably connected with the top side inner wall of a protection box (7) and the top end of a protection box (1) through bearings, the upper middle parts of the four supporting shafts (19) are respectively and fixedly provided with a driven gear (20), the middle parts of the top ends of the supporting shafts (19) are fixedly provided with electric push rods (21), the top ends of the electric push rods (21) are fixedly provided with cross-shaped plates (22), the top ends of the cross-shaped plates (22) are fixedly provided with a servo motor (24), the top ends of the cross-shaped plates (24) are fixedly provided with output shafts (26), the top ends of the output shafts (24) are fixedly provided with the protection boxes (25), the bottom sides of the protection boxes (7) are fixedly provided with the protection boxes (7), the bottom sides (7) are fixedly provided with the bottom sides of the protection boxes (1), the front sides (1, two all slide in T shape slide (28) and be provided with T shape slide (29), two the bottom rear side of T shape slide (29) is all fixed and is provided with stopper (31), and the spacing groove sliding connection that two stopper (31) were seted up with two T shape slide (28) bottom, two the fixed same bottom plate (30) that is provided with in top side of T shape slide (29), the fixed riser (33) that are provided with of upper surface of bottom plate (30), both sides are all fixed on riser (33) are provided with loading board (3).

2. The privacy protection device for service data of the electric power internet of things according to claim 1, wherein: the height of the joint of the top end of the L-shaped positioning rod (8) and the inclined rod (11) is set at the middle height of the linkage rod (12).

3. The privacy protection device for service data of the electric power internet of things according to claim 1, wherein: the upper linkage rope (13) is wound on the upper winding disc (15) in a clockwise direction, and the lower linkage rope (14) is wound on the lower winding disc (16) in a counterclockwise direction.

4. The privacy protection device for service data of the electric power internet of things according to claim 1, wherein: clamping toothed bars (23) are fixedly arranged on four side edges of the cross-shaped plate (22), and the four clamping toothed bars (23) are respectively meshed with the four driven gears (20).

5. The privacy protection device for service data of the electric power internet of things according to claim 4, wherein: the heights of the four driven gears (20) are clockwise from high to low, and the heights of the four clamping toothed bars (23) are clockwise from high to low.

6. The privacy protection device for service data of the electric power internet of things according to claim 5, wherein: the four clamping toothed bars (23) which are arranged in different heights are respectively clamped with the driven gears (20) which are arranged in different heights in a one-to-one correspondence mode, the highest clamping toothed bar (23) is clamped with the highest driven gear (20), and the bottommost clamping toothed bar (23) is clamped with the bottommost driven gear (20).

7. The privacy protection device for service data of the electric power internet of things according to claim 1, wherein: a plurality of heat dissipation holes (32) are formed in the bottom side wall of the protection box (1).

8. The method for using the privacy protection device for service data of the electric power internet of things according to claim 1, wherein the method comprises the following steps: the using method comprises the following steps:

s1: through getting put mouth (2) of seting up on the lateral wall of protective housing (1), and through closing plate (5) that all set up in four get put mouths (2) simultaneously, and through the gangbar (12) that sets up in the top side of closing plate (5) and go up the gangbar (13) and be connected of gangbar (14), through the connection of L shape locating lever (8) and diagonal bar (11) that set up, simultaneously through setting up the top of L shape locating lever (8) and the junction height of diagonal bar (11) in the middle part height position of gangbar (12), under the drive of last gangbar (13) and lower gangbar (14), in order to realize closing plate (5) and take the top of L shape locating lever (8) and the junction of diagonal bar (11) to rotate as the axle center, make four closing plate (5) upwards side rotation, realize with four get put mouths (2) of protective housing (1) open, then maintain the server in protective housing (1), through getting out of the junction of protective housing (30) and take out of a part of service data of the internet of things (3) on the service carrier of the internet of things;

s2: the servo motor (24) is driven to descend through the electric push rod (21), the transmission gear (25) is meshed with the four driven gears (20) in sequence, when the transmission gear (25) is meshed with the driven gears (20), the supporting shaft (19) at the side is driven to rotate, the upper winding disc (15) winds the upper linkage rope (13), the lower winding disc (16) winds the lower linkage rope (14), at the moment, the upper linkage rope (13) pulls the top of the linkage rod (12) to rotate towards the linkage groove (18), the portion of the lower linkage rope (14) which rotates along with the swinging of the linkage rod (12) pulls out the linkage groove (18), and then the sealing plate (5) rotates by taking the butt joint position of the top of the L-shaped positioning rod (8) and the inclined rod (11) as an axle center, so that the four sealing plates (5) are opened and closed as required, and the linkage performance is stronger, and the requirement of detection and maintenance can be met.