Moisture-proof pressure gauge
By using sealing rings and sealant sealing interfaces in the pressure gauge and filling in inert gas, the problem of unstable performance of traditional pressure gauge in humid environments is solved, and accurate and reliable measurements are achieved in humid environments.
Patent Information
- Application Number
- CN202421959279.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-14
AI Technical Summary
The performance and reliability of traditional pressure gauges in high humidity or humid environments are affected, resulting in measurement errors, corrosion of parts, and even failures.
A moisture-proof pressure gauge is designed, which uses a sealing ring and sealant to seal all interfaces, and is filled with inert gas inside, combining a waterproof breathable valve and a sealing box to protect the pressure detection device and prevent moisture from entering.
Effectively extend the service life of the pressure gauge in humid environments, ensuring measurement accuracy and reliability.
Smart Images
Figure CN223122394U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pressure measurement, and particularly relates to a moisture-proof pressure gauge. Background Art
[0002] In industrial production, pressure is a key parameter used to monitor and control various technological processes. For example, in industries such as chemical, petroleum, and power, accurate pressure measurement is crucial for ensuring the safe operation of equipment, optimizing production efficiency, and ensuring product quality. With the development of technology, mechanical pressure gauges have gradually become popular, such as Bourdon tube pressure gauges and diaphragm box pressure gauges. They measure pressure by using the deformation of elastic elements, with high accuracy and reliability, but there are still certain challenges in adaptability and long-term stability in harsh environments.
[0003] Nowadays, a part of industrial production is carried out in a high-humidity or humid environment, and high-humidity or humid environments often have an adverse impact on the performance and reliability of traditional pressure gauges, resulting in errors in pressure measurement, corrosion of the components of the pressure gauge, and even pressure gauge failures. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to specifically design this moisture-proof pressure gauge to meet the requirements of accurate and reliable pressure measurement in a humid environment.
[0005] To solve the above technical problem, the technical solution provided by the utility model is: a moisture-proof pressure gauge, including a cylindrical case with openings on the left and right sides. A transparent glass cover is provided at the left opening of the case, and a case cover is provided at the right opening of the case. A first sealing ring is adhesively bonded to the edges on the left side of the glass cover and the right side of the case cover. A second sealing ring is adhesively bonded to the connection between the right side of the glass cover and the left edge of the case cover and the inside of the case. A sealed box is arranged inside the case, and a pressure detection device is arranged inside the sealed box. A waterproof breathable valve is arranged above the pressure detection device and penetrates through the sealed box and the case. A third sealing ring is adhesively bonded to the connection between the waterproof breathable valve and the case. A adapter is arranged below the pressure detection device and penetrates through the sealed box and the case. An inflation tube penetrates through the case on the outside of the adapter. A fourth sealing ring is adhesively bonded to the connection between the inflation tube and the case. A sealing plug adapted to the inflation tube is arranged at the lower opening of the inflation tube.
[0006] Further, a fixed seat is rotatably connected to the center on the left side of the pressure detection device and penetrates through the sealed box. The left end of the fixed seat is connected with a pointer, and a dial is arranged on the right side of the pointer. A scale groove is formed on the left surface of the dial.
[0007] Further, the first sealing ring is in the shape of a semi-circular ring, and the cross-section of the first sealing ring is attached to the left side surfaces of the watch case and the glass cover.
[0008] Further, the second sealing ring is in the shape of a quarter-circular ring, and the two cross-sections of the second sealing ring are respectively attached to the inner wall of the watch case and the right side surface of the glass cover.
[0009] Further, the third sealing ring is in the shape of a quarter-circular ring, and the two cross-sections of the third sealing ring are respectively attached to the upper and lower surfaces of the watch case and the outer wall of the waterproof and breathable valve.
[0010] Further, the fourth sealing ring is in the shape of a quarter-circular ring, and the two cross-sections of the fourth sealing ring are respectively attached to the upper and lower surfaces of the watch case and the outer wall of the charging pipe.
[0011] Further, the watch case, the watch cover, the waterproof and breathable valve and the adapter are all made of stainless steel.
[0012] Further, the glass cover is made of high-strength glass with an anti-fog treatment on the surface.
[0013] Further, the materials of the first sealing ring, the second sealing ring, the third sealing ring, the fourth sealing ring and the sealing plug are nitrile rubber.
[0014] Further, the sealing plug is a circular ring with a U-shaped cross-section, and the outer wall of the side of the sealing plug close to the adapter is attached to the outer wall of the adapter.
[0015] The advantages of the present utility model compared with the prior art are as follows:
[0016] 1. All interfaces and connections are sealed by using sealing rings in combination with sealant. Inert gas is filled into the watch case through the charging pipe to prevent substances such as liquid and moisture from entering the pressure gauge, making the pressure gauge more effective in moisture-proof in a humid environment.
[0017] 2. The pressure detection device, namely devices such as the elastic element and the movement, is sealed in a sealed box, and in combination with the waterproof and breathable valve and the sealing rings inside and outside the watch case, it further prevents substances such as liquid and moisture from affecting the operation of the pressure gauge, and can effectively extend the service life of the pressure gauge in a humid environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is the overall structure diagram of a moisture-proof pressure gauge of the present utility model.
[0019] Figure 2 It is the partial structure diagram of a moisture-proof pressure gauge of the present utility model.
[0020] Figure 3This is the overall sectional view of a moisture-proof pressure gauge of the present utility model.
[0021] As shown in the figure: 1. Case; 2. Glass cover; 3. Cover; 4. First sealing ring; 5. Second sealing ring; 6. Dial; 7. Scale groove; 8. Fixed seat; 9. Pointer; 10. Sealing box; 11. Pressure detection device; 12. Waterproof and breathable valve; 13. Third sealing ring; 14. Adapter; 15. Inflatable tube; 16. Fourth sealing ring; 17. Sealing plug. Specific embodiments
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] In the description of the utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0024] Embodiment 1:
[0025] As shown in the specification appendix Figures 1-3 As shown, a moisture-proof pressure gauge includes a cylindrical case 1 with openings on the left and right sides. A transparent glass cover 2 is provided at the left opening of the case 1, and a cover 3 is provided at the right opening of the case 1. A first sealing ring 4 is adhesively bonded to the edges on the left side of the glass cover 2 and the right side of the cover 3. The first sealing ring 4 is in the shape of a semi-circular ring, and the section of the first sealing ring 4 fits the left side surfaces of the case 1 and the glass cover 2. A second sealing ring 5 is adhesively bonded to the connection between the right side of the glass cover 2 and the left edge of the cover 3 and the inner wall of the case 1. The second sealing ring 5 is in the shape of a quarter-circular ring, and the two sections of the second sealing ring 5 respectively fit the inner wall of the case 1 and the right side surface of the glass cover. A sealing box 10 is provided inside the case 1, and a pressure detection device 11 is provided inside the sealing box 10. The center of the left side of the pressure detection device 11 penetrates through the sealing box 10 and is rotatably connected to a fixed seat 8. The left end of the fixed seat 8 is connected to a pointer 9. A dial 6 is provided on the right side of the pointer 9, and a scale groove 7 is opened on the left surface of the dial 6;
[0026] Above the pressure detection device 11, a waterproof and breathable valve 12 penetrates through the sealed box 10 and the watch case 1. A third sealing ring 13 is adhesively bonded at the connection between the waterproof and breathable valve 12 and the watch case 1. The third sealing ring 13 is in the shape of a quarter circle, and the two cut surfaces of the third sealing ring 13 are respectively in contact with the upper and lower surfaces of the watch case 1 and the outer wall of the waterproof and breathable valve 12. Below the pressure detection device 11, a connector 14 penetrates through the sealed box 10 and the watch case 1. An inflation tube 15 penetrates through the watch case 1 on the outside of the connector 14. A fourth sealing ring 16 is adhesively bonded at the connection between the inflation tube 15 and the watch case 1. The fourth sealing ring 16 is in the shape of a quarter circle, and the two cut surfaces of the fourth sealing ring 16 are respectively in contact with the upper and lower surfaces of the watch case 1 and the outer wall of the inflation tube 15. At the lower opening of the inflation tube 15, a sealing plug 17 adapted to the inflation tube 15 is provided. The sealing plug 17 is a ring with a U-shaped cut surface. The outer wall of the side of the sealing plug 17 close to the connector 14 is in contact with the outer wall of the connector 14. The watch case 1, the watch cover 3, the waterproof and breathable valve 12, and the connector 14 are all made of stainless steel. The glass cover 2 is made of high-strength glass with an anti-fog treatment on the surface. The materials of the first sealing ring 4, the second sealing ring 5, the third sealing ring 13, the fourth sealing ring 16, and the sealing plug 17 are nitrile rubber.
[0027] In the specific implementation of the present utility model, the cut surface of the first sealing ring 4 is used for sealing between the watch case 1 and the left side surface of the glass cover 2. The two cut surfaces of the second sealing ring 5 are respectively used for sealing between the inner wall of the watch case 1 and the right side surface of the glass cover. The two cut surfaces of the fourth sealing ring 16 are respectively used for sealing between the upper and lower surfaces of the watch case 1 and the outer wall of the inflation tube 15. Inert gas is filled into the inside of the watch case 1 through the inflation tube 15. After the inflation tube 15 is covered with the sealing plug 17, and the upper end of the watch case 1 is inserted into the waterproof and breathable valve 12, the two cut surfaces of the third sealing ring 13 are respectively used for sealing between the upper and lower surfaces of the watch case 1 and the outer wall of the waterproof and breathable valve 12. After all interfaces and connections are sealed by using sealing rings in cooperation with sealant, the pressure gauge is connected to the object whose pressure needs to be measured through the connector 14. All interfaces and connections of the pressure gauge of the present utility model are sealed by using sealing rings in cooperation with sealant. The inside of the watch case 1 is filled with inert gas. The pressure detection device, namely the elastic element and the movement, etc., are placed in the sealed box, making the pressure gauge more effective in moisture-proof in a humid environment, and cooperating with the waterproof and breathable valve can effectively extend the service life of the pressure gauge in a humid environment.
[0028] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the specific implementation manners is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design a structural manner and an embodiment similar to the technical solution without creative work without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.
Claims
1. A moisture-proof pressure gauge, comprising a cylindrical case (1) with openings on the left and right sides, characterized in that: A transparent glass cover (2) is provided at the left opening of the watch case (1), and a watch cover (3) is provided at the right opening of the watch case (1). A first sealing ring (4) is adhesively bonded to the edges of the left side of the glass cover (2) and the right side of the watch cover (3). A second sealing ring (5) is adhesively bonded to the connection between the right side of the glass cover (2) and the left edge of the watch cover (3) and the inner part of the watch case (1). A sealed box (10) is arranged inside the watch case (1), and a pressure detection device (11) is arranged inside the sealed box (10). A waterproof breathable valve (12) is arranged above the pressure detection device (11) and penetrates through the sealed box (10) and the watch case (1). A third sealing ring (13) is adhesively bonded to the connection between the waterproof breathable valve (12) and the watch case (1). A adapter (14) is arranged below the pressure detection device (11) and penetrates through the sealed box (10) and the watch case (1). An inflation tube (15) penetrates through the watch case (1) on the outside of the adapter (14). A fourth sealing ring (16) is adhesively bonded to the connection between the inflation tube (15) and the watch case (1). A sealing plug (17) adapted to the inflation tube (15) is arranged at the lower opening of the inflation tube (15).
2. The moisture-proof pressure gauge according to claim 1, characterized in that: A fixed seat (8) is rotatably connected to the left center of the pressure detection device (11) and penetrates through the sealed box (10). The left end of the fixed seat (8) is connected with a pointer (9). A dial (6) is arranged on the right side of the pointer (9). A scale groove (7) is formed on the left surface of the dial (6).
3. A moisture-proof pressure gauge according to claim 1, characterized in that: The first sealing ring (4) is in the shape of a semi-circular ring, and the cross-section of the first sealing ring (4) fits the left side surfaces of the watch case (1) and the glass cover (2).
4. The moisture-proof pressure gauge according to claim 1, characterized in that: The second sealing ring (5) is in the shape of a quarter-circular ring, and the two cross-sections of the second sealing ring (5) respectively fit the inner wall of the watch case (1) and the right side surface of the glass cover.
5. A moisture-proof pressure gauge according to claim 1, characterized in that: The third sealing ring (13) is in the shape of a quarter-circular ring, and the two cross-sections of the third sealing ring (13) respectively fit the upper and lower surfaces of the watch case (1) and the outer wall of the waterproof breathable valve (12).
6. A moisture-proof pressure gauge according to claim 1, characterized in that: The fourth sealing ring (16) is in the shape of a quarter-circular ring, and the two cross-sections of the fourth sealing ring (16) respectively fit the upper and lower surfaces of the watch case (1) and the outer wall of the inflation tube (15).
7. A moisture-proof pressure gauge according to claim 1, characterized in that: The watch case (1), the watch cover (3), the waterproof breathable valve (12) and the adapter (14) are all made of stainless steel.
8. A moisture-proof pressure gauge according to claim 1, characterized in that: The glass cover (2) is made of high-strength glass with an anti-fog treatment on the surface.
9. The moisture-proof pressure gauge according to claim 1, characterized in that: The materials of the first sealing ring (4), the second sealing ring (5), the third sealing ring (13), the fourth sealing ring (16) and the sealing plug (17) are nitrile rubber.
10. A moisture-proof pressure gauge according to claim 1, characterized in that: The sealing plug (17) is a circular ring with a U-shaped cross-section, and the outer wall of the side of the sealing plug (17) close to the adapter (14) fits the outer wall of the adapter (14).