Ward disinfection device

Abstract

The utility model relates to the technical field of disinfection devices, in particular to a ward disinfection device, which not only performs double disinfection on a ward by utilizing disinfectant and ultraviolet lamp irradiation to ensure the disinfection effect, but also performs disinfection on corners, bed bottoms and other sanitary dead angles to ensure that the disinfection is more thorough. Comprising a moving trolley; the system further comprises a spraying mechanism, a detection mechanism, an irradiation mechanism and a sterilization mechanism, the spraying mechanism is installed on the moving trolley and sprays disinfectant to the ground, the detection mechanism is installed on the moving trolley and detects surrounding conditions, and the irradiation mechanism is installed on the detection mechanism and conducts ultraviolet lamp irradiation disinfection on a ward. The sterilization mechanism is installed on the moving trolley and sterilizes dead corners such as the bed bottom and corners.

Description

Technical Field

[0001] The utility model relates to the technical field of disinfection devices, in particular to a ward disinfection device. Background Art

[0002] Disinfection is widely used in medical treatment, including sterilization of some medical devices and disinfection in wards. Since there is a large flow of people in the wards and people often come in and out, it is easy to bring germs into the wards. If the disinfection is not thorough, it will lead to bacterial growth in the wards, and will also cause patients living in the wards to be attacked by viruses, aggravating the patients' condition and seriously affecting the patients' recovery progress.

[0003] An existing ward disinfection device, for example, a ward disinfection device disclosed in the utility model patent with application number 201921401153.1, has a main structure including a bottom plate, a liquid storage tank with an opening at the top is fixed above the bottom plate by a support rod, a threaded sleeve is fixed on the top outer wall of the liquid storage tank, a first rotating rod is rotatably connected to the first rotating rod through the threaded sleeve through a bearing, the bottom end of the first rotating rod is connected to the bottom plate, a first threaded rod is fixed to the top of two groups of first rotating rods, a lifting plate is connected to the two groups of the first threaded rods, a top beam is connected to the top of the two groups of the first threaded rods passing through the lifting plate, and a connecting pipe is fixed through the lifting plate; when in use, the liquid to be mixed is placed The disinfectant is injected into the liquid storage tank, and the first motor and the fourth motor are rotated to make the lifting plate drive the air blowing plate to descend, so that the fixed cylinder enters the liquid storage tank, and the second motor drives the rotating shaft to rotate, and the propeller blades are used to lift the disinfectant inside the fixed cylinder, and the disinfectant is mixed and stirred with the rotating stirring rod. At the same time, air is blown into the air blowing plate through the air blower, the air supply pipe, and the connecting pipe. The bubbles are discharged from the air outlet and sheared by the rotating stirring rod to improve the mixing degree of the disinfectant. After the mixing is completed, the disinfectant is pumped into the disinfection nozzle for spraying through the disinfection pump, the infusion tube and the retractable hose, and the second threaded rod is driven by the third motor to rotate and lift the disinfection nozzle.

[0004] However, the existing disinfection devices have a relatively simple disinfection method, and most of them use spraying disinfectant for disinfection, which has a poor disinfection effect, and it is easy for there to be disinfection dead corners in the room, which are difficult to reach with the existing disinfection devices. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a ward disinfection device which not only utilizes disinfectant and ultraviolet light to double disinfect the ward, thereby ensuring the disinfection effect, but also disinfects sanitary dead corners such as corners and under the bed, thereby making the disinfection more thorough.

[0006] The utility model discloses a ward disinfection device, comprising a mobile trolley, a spraying mechanism, a detection mechanism, an irradiation mechanism and a sterilization mechanism. The spraying mechanism is installed on the mobile trolley and sprays disinfectant on the ground, the detection mechanism is installed on the mobile trolley and detects the surrounding conditions, the irradiation mechanism is installed on the detection mechanism and performs ultraviolet irradiation disinfection on the ward, and the sterilization mechanism is installed on the mobile trolley and performs disinfection on dead corners such as bed bottoms and corners. The staff controls the mobile trolley to move in the ward outside the door, observes the surrounding environment of the device through the detection mechanism, thereby preventing the staff from being stimulated by the disinfectant and irradiated by the ultraviolet lamp, and the mobile spraying mechanism following the mobile trolley sprays the disinfectant into the ward for disinfection, and then stands up the irradiation mechanism to perform ultraviolet irradiation disinfection in the ward. After completion, the mobile trolley moves to the bedside, corners and other disinfection dead corners, and the sterilization mechanism is used to disinfect these parts.

[0007] Preferably, the mobile cart includes a car body, a motor, a reducer, a transmission mechanism and four sets of wheels. A cavity is provided inside the car body, the bottom end of the motor is connected to the bottom end of the cavity inside the car body, the bottom end of the reducer is connected to the bottom end of the cavity inside the car body, the top end of the transmission mechanism is connected to the bottom end of the car body, and the four sets of wheels are rotatably installed on the transmission mechanism; after moving the device into the ward and closing the door, the staff starts the motor outside the room, the motor drives the transmission mechanism through the reducer, and the transmission mechanism drives the wheels to rotate, thereby driving the car body to move in the room, making it convenient to disinfect various places in the room and avoiding harm to the staff during the disinfection process.

[0008] Preferably, the spraying mechanism includes a liquid storage tank, a liquid inlet pipe, a valve, a water pump, a liquid extraction pipe, a liquid infusion pipe and a nozzle, the bottom end of the liquid storage tank is connected to the top end of the vehicle body, a chamber is arranged inside the liquid storage tank, the bottom end of the liquid inlet pipe is connected to the top end of the liquid storage tank and communicated with the inside of the chamber of the liquid inlet pipe, the valve is installed on the liquid inlet pipe, the bottom end of the water pump is connected to the bottom end of the cavity inside the vehicle body, the liquid extraction pipe is installed on the water pump and communicated with the inside of the chamber of the liquid storage tank, the liquid infusion pipe is installed on the water pump, and the nozzle is installed on the liquid infusion pipe; the staff opens the valve to transport the disinfectant into the chamber of the liquid storage tank through the liquid inlet pipe, when the device enters the ward, the reducer drives the water pump to work, the water pump extracts the disinfectant in the chamber of the liquid storage tank through the liquid extraction pipe, and then transports it to the nozzle through the liquid infusion pipe, and the nozzle sprays the disinfectant into the ward for disinfection.

[0009] Preferably, the detection mechanism includes a servo motor, a reducer 2, a base plate, a transmission shaft 1, a turntable, an electric cylinder 1 and a camera, the bottom end of the servo motor is connected to the top of the vehicle body, the bottom end of the reducer 2 is connected to the top of the vehicle body, the base plate is installed on the side wall of the liquid storage tank, the transmission shaft 1 is rotatably installed on the reducer 2, the turntable is rotatably installed on the base plate and connected to the transmission shaft 1, the bottom end of the electric cylinder 1 is connected to the top of the turntable, and the bottom end of the camera is connected to the top of the electric cylinder 1; start the servo motor, the servo motor drives the transmission shaft 1 to rotate through the reducer 2, the transmission shaft 1 drives the turntable and the electric cylinder 1 to rotate, and at the same time the electric cylinder 1 drives the camera to rise and fall, so that the camera can detect the environmental conditions around the vehicle body, which is convenient for the staff to control the movement of the vehicle body.

[0010] Preferably, the irradiation mechanism includes a protection box, a transmission shaft 2, a base 1 and two groups of ultraviolet lamps 1. The bottom end of the protection box is connected to the top of the vehicle body, an inner cavity is provided inside the protection box, the base 1 is rotatably installed in the inner cavity of the protection box, the base 1 is installed on the transmission shaft 2, and the bottom ends of the two groups of ultraviolet lamps 1 are connected to the top of the base 1; after the vehicle body stops moving, the reducer 2 drives the transmission shaft 2 to rotate, the transmission shaft 2 drives the base 1 to rotate, and the base 1 drives the ultraviolet lamp 1 to stand upright, so that the ultraviolet lamp 1 can irradiate and disinfect the surrounding environment with ultraviolet lamps. When the vehicle body moves, the two groups of ultraviolet lamps 1 lie horizontally in the inner cavity of the protection box to prevent the ultraviolet lamps 1 from being damaged by bumps during movement.

[0011] Preferably, the sterilization mechanism includes a partition, two sets of electric cylinders, a base, two sets of ultraviolet lamps, two sets of connecting blocks, a hinge, a cover plate, two sets of connecting blocks and two sets of connecting rods. The partition is installed in the cavity of the vehicle body, the two sets of electric cylinders are installed on the partition, the bottom end of the base is connected to the top of the two sets of electric cylinders, the two sets of ultraviolet lamps are installed on the base, the two sets of connecting blocks are installed on the left and right sides of the base, the vehicle body is opened, the hinge is installed on the opening of the vehicle body, the cover is installed on the hinge, and the two The two connecting blocks are installed on the cover plate, one end of the two connecting rods are respectively rotatably connected with the two connecting blocks, and the other ends of the two connecting rods are respectively rotatably connected with the two connecting blocks. When the vehicle body moves to the bedside or the corner, the electric cylinder is started, and the electric cylinder pushes the base two and the connecting block one outward. The connecting block one pushes the connecting block two through the connecting rod, and the connecting block two drives the cover plate to flip upward. At the same time, the ultraviolet lamp two follows the base two to protrude out of the cavity of the vehicle body, and the ultraviolet lamp two is turned on to irradiate and disinfect the bed bottom or the corner with ultraviolet light.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the staff controls the mobile cart to move in the ward outside the door, observes the surrounding environment of the device through the detection mechanism, thereby preventing the staff from being stimulated by the disinfectant and irradiated by the ultraviolet lamp, and the mobile spraying mechanism following the mobile cart sprays the disinfectant into the ward for disinfection, and then erects the irradiation mechanism to irradiate the ward with ultraviolet lamp for disinfection. After completion, the mobile cart moves to the bedside, corners and other disinfection dead corners, and uses the sterilization mechanism to disinfect these parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-section axonometric structure of the mobile trolley of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-section axonometric structure of the spraying mechanism of the utility model;

[0016] Figure 4 It is a partially enlarged cross-sectional axonometric structural diagram of the detection mechanism and irradiation mechanism of the utility model;

[0017] Figure 5 It is a partially enlarged axonometric structural schematic diagram of the sterilization mechanism of the utility model.

[0018] Markings in the attached drawings: 01, mobile trolley; 11, vehicle body; 12, motor; 13, reducer 1; 14, transmission mechanism; 15, wheel; 02, spraying mechanism; 21, liquid storage tank; 22, liquid inlet pipe; 23, valve; 24, water pump; 25, liquid extraction pipe; 26, liquid infusion pipe; 27, nozzle; 03, detection mechanism; 31, servo motor; 32, reducer 2; 33, bottom plate; 34, transmission shaft 1; 35, turntable; 36, electric cylinder 1; 37, camera; 04, irradiation mechanism; 41, protection box; 42, transmission shaft 2; 43, base 1; 44, ultraviolet lamp 1; 05, sterilization mechanism; 51, partition; 52, electric cylinder 2; 53, base 2; 54, ultraviolet lamp 2; 55, connecting block; 56, hinge; 57, cover plate; 58, connecting block 2; 59, connecting rod. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example 1

[0021] The utility model discloses a ward disinfection device, comprising a mobile trolley 01; a spraying mechanism 02, a detection mechanism 03, an irradiation mechanism 04 and a sterilization mechanism 05, wherein the spraying mechanism 02 is mounted on the mobile trolley 01 and sprays disinfectant on the ground, the detection mechanism 03 is mounted on the mobile trolley 01 and detects the surrounding conditions, the irradiation mechanism 04 is mounted on the detection mechanism 03 and performs ultraviolet light irradiation disinfection on the ward, and the sterilization mechanism 05 is mounted on the mobile trolley 01 and performs disinfection on dead corners such as the bottom of the bed and corners; the mobile trolley 01 comprises a vehicle body 11, a motor 12, a reducer 13, a transmission mechanism 14 and four sets of wheels 15, and the vehicle The interior of the vehicle body 11 is provided with a cavity, the bottom end of the motor 12 is connected to the bottom end of the cavity of the vehicle body 11, the bottom end of the reducer 13 is connected to the bottom end of the cavity of the vehicle body 11, the top end of the transmission mechanism 14 is connected to the bottom end of the vehicle body 11, and the four sets of wheels 15 are rotatably mounted on the transmission mechanism 14; the spraying mechanism 02 includes a liquid storage tank 21, a liquid inlet pipe 22, a valve 23, a water pump 24, a liquid extraction pipe 25, a liquid infusion pipe 26 and a nozzle 27, the bottom end of the liquid storage tank 21 is connected to the top end of the vehicle body 11, the interior of the liquid storage tank 21 is provided with a chamber, the bottom end of the liquid inlet pipe 22 is connected to the top end of the liquid storage tank 21, and is connected to the chamber of the liquid inlet pipe 22 The interior is connected, the valve 23 is installed on the liquid inlet pipe 22, the bottom end of the water pump 24 is connected to the bottom end of the cavity inside the car body 11, the liquid extraction pipe 25 is installed on the water pump 24 and is connected to the inside of the chamber of the liquid storage tank 21, the infusion pipe 26 is installed on the water pump 24, and the nozzle 27 is installed on the infusion pipe 26; the detection mechanism 03 includes a servo motor 31, a reducer 32, a bottom plate 33, a transmission shaft 34, a turntable 35, an electric cylinder 36 and a camera 37, the bottom end of the servo motor 31 is connected to the top of the car body 11, the bottom end of the reducer 32 is connected to the top of the car body 11, the bottom plate 33 is installed on the side wall of the liquid storage tank 21, the transmission shaft A 34 is rotatably mounted on a reducer 2 32, a turntable 35 is rotatably mounted on a bottom plate 33 and connected to a transmission shaft 1 34, a bottom end of an electric cylinder 1 36 is connected to a top end of the turntable 35, and a bottom end of a camera 37 is connected to a top end of an electric cylinder 1 36; an irradiation mechanism 04 comprises a protection box 41, a transmission shaft 2 42, a base 1 43 and two sets of ultraviolet lamps 1 44, a bottom end of the protection box 41 is connected to a top end of a vehicle body 11, an inner cavity is provided inside the protection box 41, a base 1 43 is rotatably mounted in the inner cavity of the protection box 41, the base 1 43 is mounted on a transmission shaft 2 42, and the bottom ends of the two sets of ultraviolet lamps 1 44 are connected to a top end of the base 1 43;When it is working, first, the staff opens the valve 23, and transports the disinfectant into the chamber of the liquid storage tank 21 through the liquid inlet pipe 22. After moving the device into the ward, the door is closed. The staff starts the motor 12 outside the room. The motor 12 drives the transmission mechanism 14 through the reducer 13. The transmission mechanism 14 drives the wheels 15 to rotate, thereby driving the vehicle body 11 to move in the room, which is convenient for disinfecting various places in the room and avoids harm to the staff during the disinfection process. The servo motor 31 is started. The servo motor 31 drives the transmission shaft 1 34 to rotate through the reducer 2 32. The transmission shaft 1 34 drives the turntable 35 and the electric cylinder 1 36 to rotate. At the same time, the electric cylinder 1 36 drives the camera 37 to rise and fall, so that the camera 37 can detect The environment around the vehicle body 11 is convenient for the staff to control the movement of the vehicle body 11. At the same time, the reducer 13 drives the water pump 24 to work. The water pump 24 extracts the disinfectant in the chamber of the liquid storage tank 21 through the liquid extraction pipe 25, and then delivers it to the nozzle 27 through the infusion pipe 26. The nozzle 27 sprays the disinfectant into the ward for disinfection. After the vehicle body 11 stops moving, the reducer 232 drives the transmission shaft 242 to rotate, and the transmission shaft 242 drives the base 143 to rotate. The base 143 drives the ultraviolet lamp 144 to stand up, which is convenient for the ultraviolet lamp 144 to irradiate and disinfect the surrounding environment with ultraviolet light. When the vehicle body 11 moves, the two sets of ultraviolet lamps 144 lie horizontally in the inner cavity of the protection box 41 to prevent the ultraviolet lamp 144 from being damaged by bumps during the movement. ;

[0022] Example 2

[0023] like Figures 1 to 5As shown, a ward disinfection device of the utility model is based on Example 1; the sterilization mechanism 05 includes a partition 51, two groups of electric cylinders 52, a base 53, two groups of ultraviolet lamps 54, two groups of connecting blocks 55, a hinge 56, a cover 57, two groups of connecting blocks 58 and two groups of connecting rods 59, the partition 51 is installed in the cavity of the vehicle body 11, the two groups of electric cylinders 52 are installed on the partition 51, the bottom end of the base 53 is connected to the top of the two groups of electric cylinders 52, the two groups of ultraviolet lamps 54 are installed on the base 53, the two groups of connecting blocks 55 are respectively installed on the left and right sides of the base 53, the vehicle body 11 is opened, the hinge 56 is installed on the opening of the vehicle body 11, and the cover 57 is installed on the hinge. On the chain 56, two groups of connecting blocks 58 are installed on the cover plate 57, one end of the two groups of connecting rods 59 are respectively rotatably connected to the two groups of connecting blocks 58, and the other ends of the two groups of connecting rods 59 are respectively rotatably connected to the two groups of connecting blocks 1 55; when it is working, first, the staff opens the valve 23, and the disinfectant is transported to the chamber of the liquid storage tank 21 through the liquid inlet pipe 22, and the door is closed after the device is moved into the ward. The staff starts the motor 12 outside the room, and the motor 12 drives the transmission mechanism 14 through the reducer 13, and the transmission mechanism 14 drives the wheel 15 to rotate, thereby driving the vehicle body 11 to move in the room, which is convenient for disinfecting various places in the room and avoids injuries to the staff during the disinfection process. The servo motor 31 is started, and the servo motor 31 drives the transmission shaft 1 34 to rotate through the reducer 2 32. The transmission shaft 1 34 drives the turntable 35 and the electric cylinder 1 36 to rotate. At the same time, the electric cylinder 1 36 drives the camera 37 to rise and fall, so that the camera 37 can detect the environmental conditions around the vehicle body 11, which is convenient for the staff to control the movement of the vehicle body 11. At the same time, the reducer 13 drives the water pump 24 to work. The water pump 24 extracts the disinfectant in the chamber of the liquid storage tank 21 through the suction pipe 25, and then transports it to the nozzle 27 through the infusion pipe 26. The nozzle 27 sprays the disinfectant into the ward for disinfection. After the vehicle body 11 stops moving, the reducer 2 32 drives the transmission shaft 2 42 to rotate, and the transmission shaft 2 42 drives the base 1 43 rotates, the base 43 drives the ultraviolet lamp 44 to stand upright, so that the ultraviolet lamp 44 can disinfect the surrounding environment with ultraviolet light. When the vehicle body 11 moves, the two groups of ultraviolet lamps 44 lie horizontally in the inner cavity of the protection box 41 to prevent the ultraviolet lamp 44 from being damaged by bumps during movement. When the vehicle body 11 moves to the bedside or corner, the electric cylinder 2 52 is started, and the electric cylinder 2 52 pushes the base 2 53 and the connecting block 1 55 outward. The connecting block 1 55 pushes the connecting block 2 58 through the connecting rod 59. The connecting block 2 58 drives the cover plate 57 to flip upward. At the same time, the ultraviolet lamp 2 54 follows the base 2 53 to stick out of the cavity of the vehicle body 11, and the ultraviolet lamp 2 54 is turned on to disinfect the bottom of the bed or the corner with ultraviolet light.

[0024] The electric motor 12, reducer 1 13, servo motor 31 and reducer 2 32 of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A ward disinfection device, comprising a mobile vehicle (01); characterized in that: The invention also comprises a spraying mechanism (02), a detection mechanism (03), an irradiation mechanism (04) and a sterilization mechanism (05). The spraying mechanism (02) is installed on the mobile trolley (01) and sprays disinfectant on the ground. The detection mechanism (03) is installed on the mobile trolley (01) and detects the surrounding conditions. The irradiation mechanism (04) is installed on the detection mechanism (03) and irradiates the ward with ultraviolet light for disinfection. The sterilization mechanism (05) is installed on the mobile trolley (01) and disinfects dead corners such as the bottom of the bed and corners.

2. A ward disinfection device as claimed in claim 1, characterized in that: The mobile vehicle (01) comprises a vehicle body (11), an electric motor (12), a reducer (13), a transmission mechanism (14) and four sets of wheels (15). A cavity is arranged inside the vehicle body (11). The bottom end of the electric motor (12) is connected to the bottom end of the cavity inside the vehicle body (11). The bottom end of the reducer (13) is connected to the bottom end of the cavity inside the vehicle body (11). The top end of the transmission mechanism (14) is connected to the bottom end of the vehicle body (11). The four sets of wheels (15) are rotatably mounted on the transmission mechanism (14).

3. A ward disinfection device as claimed in claim 2, characterized in that: The spraying mechanism (02) comprises a liquid storage tank (21), a liquid inlet pipe (22), a valve (23), a water pump (24), a liquid extraction pipe (25), a liquid delivery pipe (26) and a nozzle (27). The bottom end of the liquid storage tank (21) is connected to the top end of the vehicle body (11), a chamber is arranged inside the liquid storage tank (21), the bottom end of the liquid inlet pipe (22) is connected to the top end of the liquid storage tank (21) and communicates with the inside of the chamber of the liquid inlet pipe (22), the valve (23) is mounted on the liquid inlet pipe (22), the bottom end of the water pump (24) is connected to the bottom end of the cavity inside the vehicle body (11), the liquid extraction pipe (25) is mounted on the water pump (24) and communicates with the inside of the chamber of the liquid storage tank (21), the liquid delivery pipe (26) is mounted on the water pump (24), and the nozzle (27) is mounted on the liquid delivery pipe (26).

4. A ward disinfection device as claimed in claim 3, characterized in that: The detection mechanism (03) comprises a servo motor (31), a second reducer (32), a bottom plate (33), a transmission shaft (34), a turntable (35), an electric cylinder (36) and a camera (37). The bottom end of the servo motor (31) is connected to the top end of the vehicle body (11), the bottom end of the second reducer (32) is connected to the top end of the vehicle body (11), the bottom plate (33) is mounted on the side wall of the liquid storage tank (21), the transmission shaft (34) is rotatably mounted on the second reducer (32), the turntable (35) is rotatably mounted on the bottom plate (33) and connected to the transmission shaft (34), the bottom end of the electric cylinder (36) is connected to the top end of the turntable (35), and the bottom end of the camera (37) is connected to the top end of the electric cylinder (36).

5. A ward disinfection device as claimed in claim 2, characterized in that: The irradiation mechanism (04) comprises a protection box (41), a transmission shaft (42), a base (43) and two sets of ultraviolet lamps (44). The bottom end of the protection box (41) is connected to the top end of the vehicle body (11). An inner cavity is provided inside the protection box (41). The base (43) is rotatably mounted in the inner cavity of the protection box (41). The base (43) is mounted on the transmission shaft (42). The bottom ends of the two sets of ultraviolet lamps (44) are connected to the top end of the base (43).

6. A ward disinfection device as claimed in claim 2, characterized in that: The sterilization mechanism (05) comprises a partition (51), two groups of electric cylinders (52), a base (53), two groups of ultraviolet lamps (54), two groups of connecting blocks (55), a hinge (56), a cover (57), two groups of connecting blocks (58) and two groups of connecting rods (59). The partition (51) is installed in the cavity of the vehicle body (11), the two groups of electric cylinders (52) are installed on the partition (51), the bottom end of the base (53) is connected to the top end of the two groups of electric cylinders (52), and the two groups of ultraviolet lamps (54) are connected to the top end of the two groups of electric cylinders (52). The vehicle body (11) is provided with an opening, a hinge (56) is installed on the opening of the vehicle body (11), a cover plate (57) is installed on the hinge (56), the two connecting blocks (58) are installed on the cover plate (57), one end of the two connecting rods (59) are respectively rotatably connected to the two connecting blocks (58), and the other end of the two connecting rods (59) are respectively rotatably connected to the two connecting blocks (55).

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