High-sealing pressure gauge
By using a combination of back sealing shell, annular sealing ring, bolts and sealing rings in the pressure gauge, and using high-pressure gas, the problem that existing pressure gauge is difficult to achieve high sealing and earthquake resistance in extreme environments, achieving low-cost and high-sealing effect.
Patent Information
- Application Number
- CN202420655124.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-04-01
AI Technical Summary
When used in extreme environments, high sealing and shock resistance are difficult to achieve, and the use of single or multi-layer sealing components often leads to high costs or complexity.
A high-sealing pressure gauge is designed, using a combination of a back sealing shell, annular sealing ring, bolts and sealing rings to achieve low-cost and high-sealing effects through the action of high-pressure gas.
Through this design, the high sealing and shock resistance of the pressure gauge are achieved, which reduces costs, avoids complex sealing structures, and extends the service life of the equipment.
Smart Images
Figure CN222837718U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure gauges, in particular to a high-sealing pressure gauge. Background Art
[0002] The environment in which the pressure gauge is used is usually in a relatively extreme environment. Most pressure gauges are installed in a local safe environment, and the environment of some pressure gauges themselves is also relatively harsh. Therefore, some pressure gauges are required to have certain shock resistance and high sealing effects to increase their actual service life. Usually, the use of a single multiple sealing component or a multi-layer sealing component has the problem of high cost or high complexity.
[0003] Therefore, we propose a high-sealability pressure gauge to solve the above problems. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high-sealability pressure gauge.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A high-sealing pressure gauge comprises a case, a needle and a back sealing shell, wherein the needle is installed in the case, an opening is provided on the back of the case, and the opening is fixedly connected to the back sealing shell, an annular sealing ring is installed in the opening of the case, a cavity is left between the annular sealing ring and the inner wall of the opening, and the cavity is filled with high-pressure gas, an air hole connected to the cavity is provided on the side of the case, and a hole plug for sealing the air hole is provided on the annular sealing ring.
[0007] Preferably, the watch case and the back sealing case are fixedly connected by a plurality of bolts.
[0008] Preferably, the center of the back sealing shell is concave.
[0009] Preferably, the inner wall of the back sealing shell is serrated.
[0010] Preferably, a plurality of sealing rings are filled between the back sealing shell and the surface shell.
[0011] Preferably, a groove is provided on the side surface of the annular sealing ring, a plurality of springs are fixedly connected in the groove, the springs are fixedly connected to the hole plug, and the hole plug is inserted in the air hole.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] By cooperating with the back sealing shell, annular sealing ring, bolts and sealing ring, the back sealing shell is used to merge the watch case. At the same time, the back sealing shell is tightly fixed to the watch case through the annular sealing ring, bolts and sealing ring, and the high-pressure air pressure is used to achieve the effect of low cost and high sealing. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the back structure of a high-sealing pressure gauge proposed by the utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the front structure of
[0016] Figure 3 for Figure 1 Side perspective view.
[0017] In the figure: 1 watch case, 2 watch hands, 3 back sealing case, 4 annular sealing ring, 5 air hole, 6 hole plug, 7 bolt, 8 sealing ring, 9 spring. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] The environment in which the pressure gauge is used is usually in a relatively extreme environment. Most pressure gauges are placed in a local safe environment. The environment of some pressure gauges is also relatively harsh. Therefore, some pressure gauges need to have certain shock resistance and high sealing effects to increase their actual service life. Usually, the use of a single multiple sealing component or a multi-layer sealing component has the problem of high cost or high complexity. Therefore, refer to Figure 1-3 This scheme designs a high-sealing pressure gauge, including a case 1, a needle 2, and a back sealing case 3. The case 1 and the back sealing case 3 are made of high-strength aluminum alloy, and the needle 2 is installed in the case 1 for indication.
[0020] The specific sealing is as follows: an opening is provided on the back of the watch case 1, and the opening is fixedly connected to the back sealing shell 3. The opening is the only port in contact with the inside of the watch case 1. The back sealing shell 3 is used to open and close it. The center of the back sealing shell 3 is concave, and the protruding position is used to enhance the sealing effect. At the same time, a plurality of sealing rings 8 are filled between the back sealing shell 3 and the watch case 1. The watch case 1 and the back sealing shell 3 are fixedly connected by a plurality of bolts 7. The sealing ring 8 is used to perform the first sealing on the position where the watch case 1 and the back sealing shell 3 are in direct contact.
[0021] Subsequently, an annular sealing ring 4 is installed in the opening of the watch case 1. The inner wall of the back sealing shell 3 is serrated, so the annular sealing ring 4 can fit more closely with the back sealing shell 3. At the same time, a cavity is left between the annular sealing ring 4 and the inner wall of the opening, and the cavity is filled with high-pressure gas. One side of the annular sealing ring 4 is arc-shaped, and the thickness of the edge gradually becomes thinner. Therefore, after the high-pressure gas is filled, the annular sealing ring 4 will be squeezed with high intensity, thereby squeezing the back sealing shell 3, thereby achieving the effect of acquired enhanced sealing, without relying on multiple seals, and the sealing pressure can also be adjusted.
[0022] Specifically: the side of the watch case 1 is provided with an air hole 5 connected to the cavity, the annular sealing ring 4 is provided with a hole plug 6 for blocking the air hole 5, the side of the annular sealing ring 4 is provided with a groove, a plurality of springs 9 are fixedly connected in the groove, the spring 9 is fixedly connected to the hole plug 6, the hole plug 6 is inserted in the air hole 5, and the hole plug 6 is connected to the air hole 5 through an external air nozzle to compress the hole plug 6 to open the air hole 5, thereby performing the functions of inflation and deflation.
[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-sealing pressure gauge, characterized in that: The watch case (1) comprises a watch hand (2) and a back sealing shell (3), wherein the watch hand (2) is installed in the watch case (1), the back of the watch case (1) is provided with an opening, the opening is fixedly connected to the back sealing shell (3), an annular sealing ring (4) is installed in the opening of the watch case (1), a cavity is left between the annular sealing ring (4) and the inner wall of the opening, and the cavity is filled with high-pressure gas, the side of the watch case (1) is provided with an air hole (5) connected with the cavity, and the annular sealing ring (4) is provided with a hole plug (6) for blocking the air hole (5).
2. A high-tightness pressure gauge according to claim 1, characterized in that: The watch case (1) and the back sealing case (3) are fixedly connected via a plurality of bolts (7).
3. A high-tightness pressure gauge according to claim 2, characterized in that: The center of the back sealing shell (3) is concave.
4. A high-tightness pressure gauge according to claim 1, characterized in that: The inner wall of the back sealing shell (3) is serrated.
5. A high-tightness pressure gauge according to claim 1, characterized in that: A plurality of sealing rings (8) are filled between the back sealing shell (3) and the watch case (1).
6. A high-tightness pressure gauge according to claim 1, characterized in that: A groove is provided on the side of the annular sealing ring (4), and a plurality of springs (9) are fixedly connected in the groove. The springs (9) are fixedly connected to the hole plug (6), and the hole plug (6) is inserted in the air hole (5).