Device based on empty box pressure gauge verification

Abstract

The utility model belongs to the technical field of empty box pressure gauges, and particularly relates to a device based on empty box pressure gauge verification, which comprises a base, a vertical plate, a connecting sleeve, a handle, an inserting plate, a sealing seat, a sealing cover and a pressurizing machine, and is characterized in that the vertical plate is fixedly connected to the top of the base, and the connecting sleeve is slidably connected to the outer wall of the vertical plate; the sealing cover is fixedly connected to the front side of the connecting sleeve, the sealing seat is fixedly connected to the top of the base and matched with the sealing cover, the pressurizing machine is movably connected to the top of the sealing cover, and the vertical plate is used for limiting the connecting sleeve so that the sealing cover can stably and vertically move. According to the utility model, the position of the sealing cover is adjusted or fixed through a simple structure, and the sealing cover is conveniently matched with a pressurizing machine, so that a plurality of empty box pressure gauges can be conveniently pressurized or decompressed at the same time, the effect of conveniently calibrating the plurality of empty box pressure gauges is achieved, and good practicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cavitation pressure gauge technology, and in particular to a device for calibrating cavitation pressure gauges. Background Technology

[0002] An aneroid pressure gauge (also known as an aneroid barometer or diaphragm barometer) is an instrument that measures the absolute pressure of a gas by utilizing the elastic deformation of a vacuum diaphragm. It is commonly used to measure atmospheric pressure. Its core component is a vacuum diaphragm (made of metal, with an interior close to a vacuum), whose shape expands or contracts with changes in external air pressure. The transmission mechanism amplifies the diaphragm's deformation through levers, gears, and other mechanical structures, driving the pointer to move on the dial. The dial is directly marked with the pressure unit (e.g., hPa, mmHg, or inHg), allowing direct reading of the current pressure value.

[0003] In practical use, existing cavity pressure gauges typically require individual pressurization and depressurization of each gauge during testing, which is cumbersome, inefficient, and inconvenient. Therefore, we propose a device for cavity pressure gauge testing to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, which typically involve individually pressurizing and depressurizing each empty pressure gauge during testing. This process is cumbersome, inefficient, and inconvenient to use. Therefore, this invention proposes a device for testing empty pressure gauges.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for calibrating an empty-cell pressure gauge, comprising:

[0007] The system comprises a base, an upright plate, a connecting sleeve, a handle, an insert plate, a sealing seat, a sealing cover, and a pressurizer. The upright plate is fixedly connected to the top of the base. The connecting sleeve is slidably connected to the outer wall of the upright plate. The sealing cover is fixedly connected to the front side of the connecting sleeve. The sealing seat is fixedly connected to the top of the base and is compatible with the sealing cover. The pressurizer is movably connected to the top of the sealing cover. The upright plate is used to limit the connecting sleeve so that the sealing cover can move vertically and stably. The sealing cover and the sealing seat are used to seal the empty pressure gauge to be tested. The pressurizer is used to control the air pressure inside the sealing cover. The insert plate is slidably connected to the outer wall of the connecting sleeve, and the front side of the insert plate extends into the interior of the connecting sleeve. The rear side of the upright plate has two symmetrical slots, and the insert plate engages with the slots.

[0008] A moving mechanism is connected to the insert plate, and the moving mechanism is used to move the insert plate to fix the sealing cover.

[0009] As a preferred embodiment of this utility model, the moving mechanism includes: a handle, a pressure plate, a push rod, and a push plate;

[0010] The handle is fixedly connected to the rear side of the connecting sleeve, the pressure plate is slidably connected to the side where the handle and the connecting sleeve are close to each other, the push rod is fixedly connected to the bottom of the pressure plate and passes through the handle, and the push plate is fixedly connected to the right side of the insert plate.

[0011] In a preferred embodiment of this utility model, a compression spring is fixedly connected to the top of the handle, and the bottom of the pressure plate is fixedly connected to the top of the compression spring.

[0012] As a preferred embodiment of this utility model, a limiting rod is fixedly connected to the front side of the handle, the front side of the limiting rod is fixedly connected to the rear side of the connecting sleeve, a limiting plate is slidably connected to the bottom of the handle, and the limiting rod passes through the limiting plate.

[0013] In a preferred embodiment of this utility model, a reset spring is fixedly connected to the front side of the limiting plate, and the front side of the reset spring is fixedly connected to the rear side of the connecting sleeve.

[0014] In a preferred embodiment of this utility model, a rotating wheel is rotatably connected to the right side of the push rod, and the outer wall of the rotating wheel is in contact with the outer wall of the push plate.

[0015] As a preferred embodiment of this utility model, the handle is a hollow structure, and a sliding hole is provided on the inner wall of the handle, and the outer wall of the push rod is slidably connected to the inner wall of the sliding hole.

[0016] Beneficial effects:

[0017] 1. The vertical plate facilitates the limiting of the connecting sleeve, allowing the connecting sleeve and the sealing cover to move stably. The cooperation between the sealing seat and the sealing cover facilitates the sealing of the empty box pressure gauge. The pressurizer facilitates the pressurization or depressurization of the empty box pressure gauge inside the sealing cover. The moving mechanism facilitates the movement of the insert plate to fix the sealing cover.

[0018] 2. By holding the handle and pushing the pressure plate down, the pressure plate will press the compression spring as it moves. At the same time, the pressure plate will move the push rod down, and the push rod will move the rotating wheel, which will push the push plate backward. At this time, the push plate will move the insert plate backward and the limit plate backward. When the limit plate moves, it will stretch the return spring. At the same time, the limit rod will limit the limit plate, so that the limit plate and the insert plate can move back and forth stably. The insertion plate will disengage from the slot below, thereby unlocking the connecting sleeve.

[0019] This invention uses a simple structure to adjust or fix the position of the sealing cover, which is convenient to cooperate with the pressurizer. This allows for the simultaneous pressurization or depressurization of multiple empty box pressure gauges, thus facilitating the calibration of multiple empty box pressure gauges and demonstrating good practicality. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a side sectional view of the present invention;

[0022] Figure 3 Appendix of this utility model Figure 2 A schematic diagram of the structure of part A;

[0023] Figure 4 This is a perspective view of the push plate, limiting plate and insert plate of this utility model.

[0024] In the diagram: 1. Base; 2. Vertical plate; 3. Connecting sleeve; 4. Handle; 5. Pressure plate; 6. Compression spring; 7. Push rod; 8. Push plate; 9. Limiting plate; 10. Return spring; 11. Limiting rod; 12. Insert plate; 13. Sealing seat; 14. Sealing cover; 15. Pressurizer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example

[0027] Reference Figures 1-4 A device for calibrating an empty-cell pressure gauge, comprising:

[0028] The system comprises a base 1, a vertical plate 2, a connecting sleeve 3, a handle 4, an insert plate 12, a sealing seat 13, a sealing cover 14, and a pressurizer 15. The vertical plate 2 is fixedly connected to the top of the base 1. The connecting sleeve 3 is slidably connected to the outer wall of the vertical plate 2. The sealing cover 14 is fixedly connected to the front side of the connecting sleeve 3. The sealing seat 13 is fixedly connected to the top of the base 1, and the sealing seat 13 and the sealing cover 14 are compatible. The pressurizer 15 is movably connected to the top of the sealing cover 14. The vertical plate 2 is used to limit the connecting sleeve 3 so that the sealing cover 14 can move stably and vertically. The sealing cover 14 and the sealing seat 13 are used to seal the empty pressure gauge that needs to be tested. The pressurizer 15 is used to control the air pressure inside the sealing cover 14. The insert plate 12 is slidably connected to the outer wall of the connecting sleeve 3, and the front side of the insert plate 12 extends into the interior of the connecting sleeve 3. The rear side of the vertical plate 2 has two symmetrical slots, and the insert plate 12 engages with the slots.

[0029] The moving mechanism is connected to the insert plate 12 and is used to move the insert plate 12 to fix the sealing cover 14.

[0030] Through the above mechanism: the vertical plate 2 can conveniently limit the connecting sleeve 3, so that the connecting sleeve 3 and the sealing cover 14 can move stably; the cooperation between the sealing seat 13 and the sealing cover 14 can conveniently seal the empty box pressure gauge; the pressurizer 15 can conveniently pressurize or depressurize the empty box pressure gauge in the sealing cover 14; and the moving mechanism can conveniently drive the insert plate 12 to move and fix the sealing cover 14.

[0031] As a preferred embodiment of the present invention, the moving mechanism includes: handle 4, pressure plate 5, push rod 7 and push plate 8;

[0032] The handle 4 is fixedly connected to the rear side of the connecting sleeve 3. The pressure plate 5 is slidably connected to the side where the handle 4 and the connecting sleeve 3 are close to each other. The push rod 7 is fixedly connected to the bottom of the pressure plate 5 and passes through the handle 4. The push plate 8 is fixedly connected to the right side of the insert plate 12. By holding the handle 4 and pushing the pressure plate 5 down, the pressure plate 5 will press the compression spring 6 when it moves. At the same time, the pressure plate 5 will move down and drive the push rod 7 down. When the push rod 7 moves, it will drive the rotating wheel to move, thereby pushing the push plate 8 to move backward. At this time, the push plate 8 will move the insert plate 12 to move backward and cause the limiting plate 9 to move backward. When the limiting plate 9 moves, it will stretch the return spring 10. At the same time, the limiting rod 11 will limit the limiting plate 9, so that the limiting plate 9 and the insert plate 12 can move back and forth stably. When the insert plate 12 moves, it will disengage from the slot below, thereby unlocking the connecting sleeve 3.

[0033] As a preferred embodiment of this utility model, a compression spring 6 is fixedly connected to the top of the handle 4, and the bottom of the pressure plate 5 is fixedly connected to the top of the compression spring 6. The pressure plate 5 can be easily pushed to reset by the elastic force of the compression spring 6.

[0034] As a preferred embodiment of this utility model, a limiting rod 11 is fixedly connected to the front side of the handle 4, the front side of the limiting rod 11 is fixedly connected to the rear side of the connecting sleeve 3, and a limiting plate 9 is slidably connected to the bottom of the handle 4. The limiting rod 11 passes through the limiting plate 9, and the limiting plate 9 is conveniently limited by the limiting rod 11, so that the limiting plate 9 can move stably.

[0035] As a preferred embodiment of this utility model, a reset spring 10 is fixedly connected to the front side of the limiting plate 9. The front side of the reset spring 10 is fixedly connected to the rear side of the connecting sleeve 3. The elastic force of the reset spring 10 facilitates the reset of the limiting plate 9.

[0036] As a preferred embodiment of this utility model, a rotating wheel is rotatably connected to the right side of the push rod 7. The outer wall of the rotating wheel is in movable contact with the outer wall of the push plate 8. The movement of the push rod 7 facilitates the movement of the rotating wheel, and the rotating wheel facilitates the movement of the push plate 8.

[0037] As a preferred embodiment of this utility model, the handle 4 has a hollow structure, and a sliding hole is provided on the inner wall of the handle 4. The outer wall of the push rod 7 is slidably connected to the inner wall of the sliding hole. The sliding hole facilitates the limiting of the push rod 7, so that the push rod 7 can move stably and vertically.

[0038] It should be noted that the specific models of sealing seat 13, sealing cover 14 and pressurizer 15 used shall be selected by those skilled in the art. Furthermore, the above-mentioned sealing seat 13, sealing cover 14 and pressurizer 15 are all existing technologies and will not be elaborated upon in this solution.

[0039] The working principle of this utility model is as follows: In actual use, when it is necessary to calibrate the empty box pressure gauge, first open the sealing cover 14, grasp the handle 4 and push the pressure plate 5 downward. When the pressure plate 5 moves, it will press the compression spring 6. At the same time, the downward movement of the pressure plate 5 will drive the push rod 7 downward. When the push rod 7 moves, it will drive the rotating wheel to move, thereby pushing the push plate 8 backward. At this time, the movement of the push plate 8 will drive the insert plate 12 backward and the limiting plate 9 backward. When the limiting plate 9 moves, it will stretch the return spring 10. At the same time, the limiting rod 11 limits the limiting plate 9, so that the limiting plate 9 and the insert plate 12 move back and forth stably. When the insert plate 12 moves, it will disengage from the slot below, thereby unlocking the connecting sleeve 3. At this time, the push plate 12 will move backward. The handle 4 can be moved to move the sealing cover 14 upward. When the insert plate 12 moves to the position corresponding to the slot above, the pressure plate 5 is released. The compression spring 6 will push the pressure plate 5 upward to reset. At the same time, the reset spring 10 will pull the limit plate 9 forward, so that the insert plate 12 and the slot are engaged to fix the sealing cover 14 at the current height. At this time, the empty box pressure gauge to be calibrated is placed on the top of the sealing seat 13. Then, the above steps are repeated to fix the sealing cover 14 and the sealing seat 13. Then, the pressurizer 15 is connected to the top of the sealing cover 14. By starting the pressurizer 15, the air in the sealing cover 14 is extracted, so that the air pressure in the sealing cover 14 changes, thereby calibrating the empty box pressure gauge.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for calibrating an empty-cell pressure gauge, characterized in that, include The system comprises a base (1), a vertical plate (2), a connecting sleeve (3), a handle (4), a insert plate (12), a sealing seat (13), a sealing cover (14), and a press (15). The vertical plate (2) is fixedly connected to the top of the base (1). The connecting sleeve (3) is slidably connected to the outer wall of the vertical plate (2). The sealing cover (14) is fixedly connected to the front side of the connecting sleeve (3). The sealing seat (13) is fixedly connected to the top of the base (1), and the sealing seat (13) and the sealing cover (14) are compatible. The press (15) is movably connected to the sealing plate (15). The top of the cover (14) has a vertical plate (2) for limiting the connecting sleeve (3) so that the cover (14) can move vertically and stably. The cover (14) and the sealing seat (13) are used to seal the empty box pressure gauge that needs to be tested. The pressurizer (15) is used to control the air pressure inside the cover (14). The insert plate (12) is slidably connected to the outer wall of the connecting sleeve (3), and the front side of the insert plate (12) extends into the interior of the connecting sleeve (3). The rear side of the vertical plate (2) is symmetrically provided with slots, and there are two slots. The insert plate (12) engages with the slots. The moving mechanism is connected to the insert plate (12) and is used to move the insert plate (12) to fix the sealing cover (14).

2. The device for calibrating an empty-cell pressure gauge according to claim 1, characterized in that, The moving mechanism includes: a handle (4), a pressure plate (5), a push rod (7), and a push plate (8); The handle (4) is fixedly connected to the rear side of the connecting sleeve (3), the pressure plate (5) is slidably connected to the side where the handle (4) and the connecting sleeve (3) are close to each other, the push rod (7) is fixedly connected to the bottom of the pressure plate (5) and the push rod (7) passes through the handle (4), and the push plate (8) is fixedly connected to the right side of the insert plate (12).

3. The device for calibrating an empty-cell pressure gauge according to claim 2, characterized in that, A compression spring (6) is fixedly connected to the top of the handle (4), and the bottom of the pressure plate (5) is fixedly connected to the top of the compression spring (6).

4. The device for calibrating an empty-cell pressure gauge according to claim 2, characterized in that, A limiting rod (11) is fixedly connected to the front side of the handle (4), and the front side of the limiting rod (11) is fixedly connected to the rear side of the connecting sleeve (3). A limiting plate (9) is slidably connected to the bottom of the handle (4), and the limiting rod (11) passes through the limiting plate (9).

5. The device for calibrating an empty-cell pressure gauge according to claim 4, characterized in that, A reset spring (10) is fixedly connected to the front side of the limiting plate (9), and the front side of the reset spring (10) is fixedly connected to the rear side of the connecting sleeve (3).

6. The device for calibrating an empty-cell pressure gauge according to claim 2, characterized in that, The push rod (7) is rotatably connected to a wheel on its right side, and the outer wall of the wheel is in contact with the outer wall of the push plate (8).

7. The device for calibrating an empty-cell pressure gauge according to claim 2, characterized in that, The handle (4) is a hollow structure, and a sliding hole is provided on the inner wall of the handle (4). The outer wall of the push rod (7) is slidably connected to the inner wall of the sliding hole.

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