Cleaning device for pressure gauge

By designing a pressure gauge cleaning device including a cleaning box, a closing mechanism, a drying mechanism and a pumping box, the problems of damage, inaccurate delivery and liquid evaporation during the cleaning process are solved, and efficient cleaning, drying and drying processes are achieved.

CN120133217AInactive Publication Date: 2025-06-13MA ANSHAN EXACT INSTR CO LTD
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Patent Information

Application Number
CN202510464845.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2025-06-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the cleaning of the pressure gauge, it is impossible to clean first and then dry, resulting in the possible damage to the pressure gauge and difficult to convey and move accurately, while the open space causes unnecessary liquid evaporation.

Method used

A cleaning device including a cleaning box, a closing mechanism, a drying mechanism and a pumping box is designed. Through the rotary cleaning of the inner box, the heating of the drying mechanism and the vacuum pumping function of the pumping box, the complete process of cleaning, drying and drying is realized.

Benefits of technology

The device can effectively prevent the pressure gauge from being damaged during cleaning, achieve accurate conveying movement, and ensure complete drying of parts through drying and vacuum drying, improving operating efficiency and saving resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a cleaning device for a pressure gauge, and relates to the technical field of pressure gauges.The cleaning device comprises a cleaning box, an inner box body is arranged in the cleaning box, a cleaning solution is arranged on the outer side of the inner box body, a closing mechanism is arranged above the cleaning box, and a drying mechanism is arranged above the closing mechanism; the other set of closing mechanism is arranged above the drying mechanism; and an air exhaust box is arranged above the other set of closing mechanism, vacuum pumps are arranged on the left side and the right side of the interior of the air exhaust box, and a lifting mechanism is arranged above the air exhaust box. The problems that in the pressure gauge cleaning step, cleaning and drying cannot be conducted firstly, and then residual water cannot be removed are solved, so that the pressure gauges are likely to be collided and damaged due to external force in the cleaning process, accurate conveying and moving are difficult to conduct according to needs, and meanwhile in the cleaning and drying operation, due to the open space, the pressure gauges cannot be cleaned easily. And unnecessary liquid is easy to dry and evaporate.
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Description

Technical Field

[0001] The present invention relates to the technical field of pressure gauges, and particularly relates to a cleaning device for pressure gauges. Background Art

[0002] As a common industrial measuring instrument, pressure gauges are widely used in industries such as petroleum, chemical industry, electric power, and metallurgy to measure the pressure of gases or liquids. Due to the complexity of the working environment, pressure gauges are easily contaminated during use, such as oil stains, dust, corrosive media, etc. These pollutants will affect the measurement accuracy and service life of the pressure gauges. Therefore, regular cleaning of pressure gauges is an important link to ensure their normal operation.

[0003] Compared with the existing cleaning devices, there are still the following defects: in the pressure gauge cleaning step, it is impossible to clean first, then dry, and then remove the residual moisture, which may cause the pressure gauge to be damaged by collision due to external forces during the cleaning process, and it is difficult to accurately convey and move according to needs. At the same time, during the cleaning and drying operations, due to the open space, unnecessary liquids are easily dried and evaporated. Summary of the Invention

[0004] The purpose of the present invention is to provide a cleaning device for pressure gauges, and solve the following technical problems: in the pressure gauge cleaning step, it is impossible to clean first, then dry, and then remove the residual moisture, which may cause the pressure gauge to be damaged by collision due to external forces during the cleaning process, and it is difficult to accurately convey and move according to needs. At the same time, during the cleaning and drying operations, due to the open space, unnecessary liquids are easily dried and evaporated.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A cleaning device for pressure gauges includes: a cleaning tank, an inner tank is arranged inside the cleaning tank, a cleaning solution is arranged outside the inner tank, a closing mechanism is arranged above the cleaning tank, a drying mechanism is arranged above the closing mechanism, and another set of closing mechanism is arranged above the drying mechanism;

[0007] Above the other set of closing mechanism, an air extraction tank is arranged, vacuum pumps are arranged on both the left and right sides inside the air extraction tank, and a lifting mechanism is arranged above the air extraction tank.

[0008] As a further solution of the present invention: cleaning brushes are arranged at equal intervals on the inner surface of the inner tank, the lower side inside the cleaning tank is arranged in an inclined manner, and liquid stop plugs are arranged on both the left and right sides at the lower end of the cleaning tank.

[0009] As a further solution of the present invention: the closing mechanism further comprises an adjusting rod arranged at the inner sides of the front and rear ends, the inner surface of the adjusting rod is connected to an adjusting disk, and the rear end of the adjusting disk is respectively provided with a first movable horizontal plate and a second movable horizontal plate from left to right;

[0010] The inner ends of the first movable horizontal plate and the second movable horizontal plate are both provided with rubber sealing blocks, and the middle parts of the first movable horizontal plate and the second movable horizontal plate are provided with yielding grooves.

[0011] As a further solution of the present invention: the thread direction of the adjusting rod is opposite to the left and right sides of the center line of the closing mechanism, and the adjusting rod is connected to the adjusting disk in a meshing manner;

[0012] The first movable horizontal plate and the second movable horizontal plate are both provided with convex structures at the front and rear ends, the first movable horizontal plate and the second movable horizontal plate are both connected to the adjustment disk in a meshing manner, and the first movable horizontal plate and the second movable horizontal plate are both connected in a snap-fit ​​manner through a rubber sealing block;

[0013] The first movable horizontal plate and the second movable horizontal plate form a fitting sliding structure on the inner side of the closing mechanism.

[0014] As a further solution of the present invention: fastening connectors are provided between the cleaning box and the closing mechanism, between the closing mechanism and the drying mechanism, and between the closing mechanism and the vacuum box.

[0015] As a further solution of the present invention: a heating tube is also arranged on the inner side of the inner end of the drying mechanism, a mounting frame connected to the drying mechanism is arranged on the outer side of the heating tube, a filter mesh is arranged on the inner side of the outer end of the mounting frame, and a fan is arranged inside the mounting frame.

[0016] As a further solution of the present invention: the heating tube is arranged in a front-to-back staggered spiral on the inner side of the inner end of the drying mechanism, the mounting frame and the drying mechanism are snap-fitted and a threaded adjustment bolt is provided at the connection between the two, and the filter mesh holes are evenly arranged on the inner side of the outer end of the mounting frame for filtering dust.

[0017] As a further solution of the present invention: linkage shaft blocks are arranged on both sides of the upper end of the lifting mechanism, an inner tooth belt is arranged on the outer side of the linkage shaft block, a winding shaft roller is arranged on the outer end of the linkage shaft block, and a traction rope is arranged on the outer surface of the winding shaft roller;

[0018] The lower end of the traction rope is connected with a counterweight cover plate, and a cleaning cabin is arranged below the counterweight cover plate.

[0019] As a further solution of the present invention: the linkage shaft block is connected to the inner tooth belt in a meshing manner, the linkage shaft block is fixedly connected to the winding shaft roller, and the winding shaft roller and the counterweight cover plate are connected to the traction rope in a winding manner;

[0020] The traction rope is connected with the first movable horizontal plate and the second movable horizontal plate respectively through the clearance groove in a plug-in manner.

[0021] As a further solution of the present invention: a waterproof quick-release lock buckle is provided at the connection between the counterweight cover plate and the cleaning cabin, and a metal mesh is provided on the outer surface of the cleaning cabin;

[0022] A rubber seal which is engaged with the air extraction box is arranged at the lower edge of the lifting mechanism.

[0023] Beneficial effects of the present invention:

[0024] 1. Through the fitting arrangement of the cleaning cabin and the inner box, the cleaning solution can shuttle back and forth in the cleaning cabin through the metal mesh under the action of the high-speed rotating inner box to achieve the cleaning effect. After that, when the traction rope is lifted, the cleaning cabin is pulled up to the inside of the drying mechanism for drying. Finally, after the positive and negative air pressure of the vacuum pump, the pressure gauge parts in the cleaning cabin can be completely dried. During the operation, in conjunction with the effect of the closing mechanism, the operating efficiency can be greatly improved and resources can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0027] Figure 2 The present invention Figure 1 The enlarged structural diagram at A in the middle;

[0028] Figure 3 It is a schematic diagram of the overall structure of the connection between the inner box and the cleaning brush of the present invention;

[0029] Figure 4 It is a schematic diagram of a top cross-sectional structure of the first movable horizontal plate and the second movable horizontal plate connected to each other according to the present invention;

[0030] Figure 5 It is a schematic diagram of the overall structure of the connection between the adjustment disk and the first movable horizontal plate of the present invention;

[0031] Figure 6 It is a schematic diagram of the overall structure of the drying mechanism of the present invention connected with the heating tube;

[0032] Figure 7It is a top view cross-sectional structural schematic diagram of the connection between the linkage shaft block and the internal toothed belt of the present invention.

[0033] In the figure: 1. cleaning box; 101. liquid stopper; 2. inner box body; 201. waterproof motor; 202. cleaning brush; 3. cleaning solution; 4. closing mechanism; 401. first servo motor; 402. adjusting rod; 403. adjusting disk; 404. first movable horizontal plate; 405. second movable horizontal plate; 406. rubber sealing block; 407. clearance groove; 5. drying mechanism; 501. heating tube; 502. mounting frame; 503. adjusting bolt; 504. filter mesh; 505. fan; 6. fastening connector; 7. vacuum box; 8. vacuum pump; 9. lifting mechanism; 901. second servo motor; 902. linkage shaft block; 903. internal toothed belt; 904. winding shaft roller; 905. traction rope; 906. counterweight cover plate; 907. cleaning cabin; 908. waterproof quick release lock buckle; 909. metal mesh; 10. rubber sealing member. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-7 As shown, the present invention is a cleaning device for a pressure gauge.

[0036] Embodiment 1

[0037] See also Figure 1 , Figure 3 and Figure 7 The present invention provides a technical solution: a cleaning box 1, an inner box body 2 is arranged inside the cleaning box 1, a cleaning solution 3 is arranged outside the inner box body 2, a closing mechanism 4 is arranged above the cleaning box 1, a drying mechanism 5 is arranged above the closing mechanism 4, and another group of closing mechanisms 4 is arranged above the drying mechanism 5; an air extraction box 7 is arranged above the other group of closing mechanisms 4, a vacuum pump 8 is arranged on both sides of the inside of the air extraction box 7, a lifting mechanism 9 is arranged above the air extraction box 7, and fastening connectors 6 are arranged between the cleaning box 1 and the closing mechanism 4, between the closing mechanism 4 and the drying mechanism 5, and between the closing mechanism 4 and the air extraction box 7;

[0038] The upper left and right sides of the lifting mechanism 9 are provided with linkage shaft blocks 902, the outer side of the linkage shaft block 902 is provided with an inner tooth belt 903, the outer end of the linkage shaft block 902 is provided with a winding shaft roller 904, and the outer surface of the winding shaft roller 904 is provided with a traction rope 905; the lower end of the traction rope 905 is connected to a counterweight cover plate 906, and a cleaning cabin 907 is provided below the counterweight cover plate 906; the linkage shaft block 902 and the inner tooth belt 903 are connected in a meshing manner, and the linkage shaft block 902 and the winding shaft roller 904 are connected in a meshing manner. Fixed connection, the winding shaft roller 904 and the counterweight cover plate 906 are connected to the traction rope 905 by winding; the traction rope 905 is connected to the first movable horizontal plate 404 and the second movable horizontal plate 405 by plugging through the yield groove 407; the connection between the counterweight cover plate 906 and the cleaning cabin 907 is provided with a waterproof quick-release lock buckle 908, and the outer surface of the cleaning cabin 907 is provided with a metal mesh 909; the lower end edge of the lifting mechanism 9 is provided with a rubber seal 10 that is snap-connected with the vacuum box 7.

[0039] Specifically, firstly, the pressure gauge parts to be cleaned are placed inside the cleaning chamber 907, and then the cleaning chamber 907 and the counterweight cover plate 906 are fixedly connected and installed by using the waterproof quick-release lock buckle 908, the model of which is QR-WP100, and then the lifting mechanism 9 is sealed and connected with the vacuum box 7 through the rubber seal 10, and then the cleaning box 1 and the closing mechanism 4, the closing mechanism 4 and the drying mechanism 5 and the vacuum box 7 are fixedly connected by the fastening connector 6 respectively, to avoid energy loss and shaking caused by leaving gaps, etc. The phenomenon that the linkage shaft block 902 and the inner tooth belt 903 are connected in a meshing manner, when the second servo motor 901 is turned on to rotate the linkage shaft block 902, the inner tooth belt 903 can drive the linkage shaft block 902 and the corresponding monomer to rotate in the same direction, so that when the winding shaft roller 904 rotates, the traction rope 905 drives the counterweight cover plate 906 to perform a stable lifting movement. By equidistantly arranging the traction rope 905 at the four corners of the upper surface of the counterweight cover plate 906, the lifting force can be spread out, making the lifting more stable and smooth.

[0040] When the traction rope 905 is lowered, the cleaning cabin 907 is made to penetrate into the inner side of the inner box body 2, and the outer surface of the cleaning cabin 907 is made to fit in contact with the cleaning brush 202. At this time, when the waterproof motor 201 is turned on to rotate the inner box body 2, the cleaning brush 202 can be driven to rotate in a rapid circle to clean the pressure gauge parts in the cleaning cabin 907. A metal mesh 909 is provided on the outer surface of the cleaning cabin 907 to facilitate the circulation of the cleaning solution 3 and avoid the loss of parts.

[0041] Embodiment 2

[0042] See also Figure 1 ,Figure 4 and Figure 5 The present invention provides a technical solution: the closing mechanism 4 also includes an adjusting rod 402 arranged on the inner side of the front and rear ends, the inner surface of the adjusting rod 402 is connected to an adjusting disk 403, and the rear end of the adjusting disk 403 is respectively provided with a first movable horizontal plate 404 and a second movable horizontal plate 405 from left to right; the inner ends of the first movable horizontal plate 404 and the second movable horizontal plate 405 are both provided with a rubber sealing block 406, and the middle parts of the first movable horizontal plate 404 and the second movable horizontal plate 405 are provided with a clearance groove 407; the thread direction of the adjusting rod 402 is about the center of the closing mechanism 4 The lines are arranged in opposite directions on the left and right, and the adjusting rod 402 is connected to the adjusting disk 403 by meshing; the front and rear ends of the first movable horizontal plate 404 and the second movable horizontal plate 405 are provided with convex structures, and the first movable horizontal plate 404 and the second movable horizontal plate 405 are connected to the adjusting disk 403 by meshing, and the first movable horizontal plate 404 and the second movable horizontal plate 405 are connected by a snap-fitting manner through a rubber sealing block 406; the first movable horizontal plate 404 and the second movable horizontal plate 405 form a fitting sliding structure on the inner side of the closing mechanism 4.

[0043] Specifically, in combination with the first embodiment, during the cleaning process of the pressure gauge parts, it is necessary to turn on the first servo motor 401 to rotate the adjusting rod 402 so that the adjusting disk 403 meshed with the adjusting rod 402 rotates synchronously. Since the thread direction of the adjusting rod 402 is opposite to the left and right about the center line of the closing mechanism 4, the adjusting disk 403 can drive the first movable horizontal plate 404 and the second movable horizontal plate 405 to move to the left and right respectively, so that the first movable horizontal plate 404 and the second movable horizontal plate 405 can slide in the closing mechanism 4. After closing, the first movable horizontal plate 404 and the second movable horizontal plate 405 are engaged and connected through the rubber sealing block 406 bonded to the inner end to increase the sealing performance, and cooperate with the first movable horizontal plate 404 and the second movable horizontal plate 405 to pass through the traction rope 905 through the give way groove 407 to prevent the traction rope 905 from shaking and breaking, so that the cleaning box 1 is in a relatively sealed state, and during the cleaning process, the cleaning solution 3 is prevented from splashing and leaking everywhere due to the high-speed rotating inner box 2.

[0044] Embodiment 3

[0045] See also Figure 1 , Figure 2 and Figure 6The present invention provides a technical solution: a heating tube 501 is also arranged on the inner side of the inner end of the drying mechanism 5, a mounting frame 502 connected to the drying mechanism 5 is arranged on the outer side of the heating tube 501, a filter mesh hole 504 is arranged on the inner side of the outer end of the mounting frame 502, and a fan 505 is arranged inside the mounting frame 502; the heating tube 501 is arranged in a front-to-back staggered spiral arrangement on the inner side of the inner end of the drying mechanism 5, the mounting frame 502 and the drying mechanism 5 are snap-fitted and connected, and a threaded adjustment bolt 503 is arranged at the connection between the two, and the filter mesh hole 504 is evenly arranged on the inner side of the outer end of the mounting frame 502 for filtering dust; cleaning brushes 202 are arranged at equal intervals on the inner surface of the inner box body 2, the inner lower side of the cleaning box 1 is arranged in an inclined manner, and liquid stop plugs 101 are arranged on both sides of the lower end of the cleaning box 1.

[0046] Specifically, in combination with Embodiment 1 and Embodiment 2, after cleaning is completed, the closing mechanism 4 on the upper surface of the cleaning box 1 is opened, and the first movable horizontal plate 404 and the second movable horizontal plate 405 are moved to the left and right ends, so that the upper end of the cleaning box 1 is in an open state, and at this time, the traction rope 905 is driven to move upward again, so that the counterweight cover plate 906 drives the cleaning cabin 907 to move upward and lift it to the inner side of the drying mechanism 5, and then, the closing mechanisms 4 arranged at the upper and lower ends of the drying mechanism 5 are driven respectively, and the working principle of the closing mechanism 4 is the same as that of Embodiment 1, so that the drying mechanism 5 is in a relatively sealed state;

[0047] When the cleaning chamber 907 is in a suspended state, the excess cleaning solution 3 will drip under the action of gravity, and then penetrate into the cleaning box 1 along the give way groove 407 opened on the inner side of the first movable horizontal plate 404 and the second movable horizontal plate 405. At the same time, the fan 505 is turned on to rotate, and the external air is filtered and sucked in from the mounting frame 502 and blown out into the drying mechanism 5, and then the heating tube 501 is turned on for heating, so that the blown air flow can be heated and blown into the cleaning chamber 907, and enter the cleaning chamber 907 through the metal mesh 909 to dry the pressure gauge parts. After the treatment is completed, the heating tube 501 is turned off first and then the fan 505 is turned off, and the cold air blown by the fan 505 is used to cool the heating tube 501 to avoid damage, and the connection between the mounting frame 502 and the drying mechanism 5 is threadedly connected through the adjusting bolt 503, so as to facilitate the disassembly, maintenance or replacement of the mounting frame 502 as a whole at a later time;

[0048] Finally, open the closing mechanism 4 provided at the upper end of the drying mechanism 5. The upper end of the drying mechanism 5 is in an open state. Pull the traction rope 905 again to drive the counterweight cover plate 906 to lift the cleaning chamber 907 upward. Finally, suspend the cleaning chamber 907 inside the air extraction box 7. Then, close the closing mechanism 4 provided at the upper end of the drying mechanism 5 and the lower end of the air extraction box 7 again to make the air extraction box 7 in a relatively sealed state. Since vacuum pumps 8 are provided on both the left and right sides inside the air extraction box 7, the positive and negative air pressures created by the vacuum pumps 8 can collide to quickly remove the residual moisture in the cleaning chamber 907, ensuring the drying quality and effect of the entire device.

[0049] The above has described in detail an embodiment of the present invention, but the content is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A cleaning device for a pressure gauge, characterized in that: The invention comprises a cleaning box (1), wherein an inner box body (2) is arranged inside the cleaning box (1), a cleaning solution (3) is arranged outside the inner box body (2), a closing mechanism (4) is arranged above the cleaning box (1), a drying mechanism (5) is arranged above the closing mechanism (4), and another set of closing mechanisms (4) is arranged above the drying mechanism (5); An air suction box (7) is arranged above the other set of closing mechanisms (4), vacuum pumps (8) are arranged on both left and right sides of the air suction box (7), and a lifting mechanism (9) is arranged above the air suction box (7).

2. A cleaning device for a pressure gauge according to claim 1, characterized in that: Cleaning brushes (202) are arranged at equal intervals on the inner surface of the inner box body (2); the lower inner side of the cleaning box (1) is arranged in an inclined manner; and liquid stoppers (101) are arranged on both left and right sides of the lower end of the cleaning box (1).

3. A cleaning device for a pressure gauge according to claim 1, characterized in that: The closing mechanism (4) further comprises an adjusting rod (402) arranged on the inner sides of the front and rear ends, the inner surface of the adjusting rod (402) is connected to an adjusting disk (403), and the rear end of the adjusting disk (403) is respectively provided with a first movable horizontal plate (404) and a second movable horizontal plate (405) from left to right; The inner ends of the first movable horizontal plate (404) and the second movable horizontal plate (405) are both provided with rubber sealing blocks (406), and the middle parts of the first movable horizontal plate (404) and the second movable horizontal plate (405) are provided with clearance grooves (407).

4. A cleaning device for a pressure gauge according to claim 3, characterized in that: The thread direction of the adjusting rod (402) is opposite to the left and right sides of the center line of the closing mechanism (4), and the adjusting rod (402) and the adjusting disk (403) are connected in a meshing manner; The front and rear ends of the first movable horizontal plate (404) and the second movable horizontal plate (405) are both provided with convex structures, the first movable horizontal plate (404) and the second movable horizontal plate (405) are both connected to the adjustment disk (403) in a meshing manner, and the first movable horizontal plate (404) and the second movable horizontal plate (405) are both connected in a snap-fit ​​manner via a rubber sealing block (406); The first movable horizontal plate (404) and the second movable horizontal plate (405) form a fitting sliding structure on the inner side of the closing mechanism (4).

5. A cleaning device for a pressure gauge according to claim 2, characterized in that: Fastening connectors (6) are provided between the cleaning box (1) and the closing mechanism (4), between the closing mechanism (4) and the drying mechanism (5), and between the closing mechanism (4) and the air extraction box (7).

6. A cleaning device for a pressure gauge according to claim 5, characterized in that: A heating tube (501) is also provided on the inner side of the inner end of the drying mechanism (5); a mounting frame (502) connected to the drying mechanism (5) is provided on the outer side of the heating tube (501); a filter mesh hole (504) is provided on the inner side of the outer end of the mounting frame (502); and a fan (505) is provided inside the mounting frame (502).

7. A cleaning device for a pressure gauge according to claim 6, characterized in that: The heating tube (501) is arranged in a front-to-back staggered spiral arrangement on the inner side of the inner end of the drying mechanism (5); the mounting frame (502) and the drying mechanism (5) are snap-fitted and connected, and a threaded adjustment bolt (503) is provided at the connection between the two; the filter mesh holes (504) are evenly arranged on the inner side of the outer end of the mounting frame (502) for filtering dust.

8. A cleaning device for a pressure gauge according to claim 1, characterized in that: The upper left and right sides of the lifting mechanism (9) are both provided with linkage shaft blocks (902), the outer side of the linkage shaft block (902) is provided with an inner toothed belt (903), the outer end of the linkage shaft block (902) is provided with a winding shaft roller (904), and the outer surface of the winding shaft roller (904) is provided with a traction rope (905); The lower end of the traction rope (905) is connected to a counterweight cover plate (906), and a cleaning cabin (907) is arranged below the counterweight cover plate (906).

9. A cleaning device for a pressure gauge according to claim 8, characterized in that: The linkage shaft block (902) and the inner toothed belt (903) are connected in a meshing manner, the linkage shaft block (902) and the winding shaft roller (904) are fixedly connected, and the winding shaft roller (904) and the counterweight cover plate (906) are connected to the traction rope (905) in a winding manner; The traction rope (905) is connected to the first movable horizontal plate (404) and the second movable horizontal plate (405) respectively through the clearance groove (407) in a plug-in manner.

10. A cleaning device for a pressure gauge according to claim 8, characterized in that: A waterproof quick-release lock buckle (908) is provided at the connection between the counterweight cover plate (906) and the cleaning cabin (907), and a metal mesh (909) is provided on the outer surface of the cleaning cabin (907); A rubber sealing member (10) is provided at the lower edge of the lifting mechanism (9) and is snap-fitted and connected to the air extraction box (7).