Mechanical structure of a pressure gauge movement suitable for high pressure environments

Abstract

The utility model discloses a pressure gauge movement mechanical structure suitable for high pressure environment belongs to pressure gauge technical field, and its technical key points include primary buffer subassembly, secondary buffer subassembly, main part subassembly and measurement component. The utility model, when detecting high pressure pipeline, can pass through the connection of primary buffer subassembly and pipeline, and at this moment, through the double buffering effect of primary buffer subassembly and secondary buffer subassembly, so that when carrying out pressure test, the measurement component in the main part subassembly will not be damaged because of higher pressure, thereby influence measurement accuracy, through setting up primary buffer subassembly and secondary buffer subassembly, and the mutual cooperation use of both, thereby can carry out double buffering protection to measurement component, thereby avoid when installing the device on high pressure pipeline, stronger pressure causes the damage of measurement component, thereby influence the precision of measurement component.

Description

Technical Field

[0001] This utility model belongs to the field of pressure gauge technology, specifically relating to the mechanical structure of a pressure gauge movement suitable for high-pressure environments. Background Technology

[0002] Pressure gauges are widely used in various fields. The accuracy of a pressure gauge often depends on its movement. The movement converts the linear displacement of the free end of the Bourdon tube into angular displacement to ensure that the pressure gauge has sufficient reading accuracy and makes it easy to observe the indicated value.

[0003] In the prior art, when measuring pressure in high-pressure pipelines, the high pressure of the pipeline can easily damage the pressure gauge's mechanism after the pressure gauge is connected to the pipeline. Therefore, we propose a pressure gauge mechanism mechanical structure suitable for high-pressure environments to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a mechanical structure for a pressure gauge movement suitable for high-pressure environments, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pressure gauge movement mechanical structure suitable for high-pressure environments includes a main body assembly, on which a secondary buffer assembly is provided for secondary buffering of high pressure in the pipeline, and a primary buffer assembly is provided on the secondary buffer assembly for primary buffering of high pressure in the pipeline. A measuring component is provided inside the main body assembly. The main component includes a main housing, a cover plate is provided on the main housing, and the gap between the main housing and the cover plate is sealed with sealant. A pressure relief component is provided on the main housing.

[0006] Preferably, the secondary buffer assembly includes a B buffer housing, which is disposed on the main housing. A limiting groove is formed on the inner wall of the B buffer housing. A B baffle is disposed inside the B buffer housing. A limiting block is disposed on the B baffle and disposed in the limiting groove. A transmission pipe is disposed on the B buffer housing and communicates with the B buffer housing.

[0007] Preferably, the secondary buffer assembly further includes a B spring, a B damping structure is provided inside the B buffer housing, and the telescopic end of the B damping structure is connected to the B baffle. The B spring is disposed inside the B buffer housing and sleeved on the B damping structure, and the B spring is connected to the B baffle.

[0008] Preferably, the primary buffer assembly includes a buffer housing A, a baffle A is disposed inside the buffer housing A, a spring A is disposed inside the buffer housing A, and the spring A is connected to the baffle A. The buffer housing A is connected to the transmission pipe.

[0009] Preferably, the primary buffer assembly further includes an A fixing member, which is disposed on an A baffle plate. A B fixing member is disposed inside the A buffer housing. The A fixing member and the B fixing member are hinged together by an A damping structure. An inlet tube is disposed on the A buffer housing.

[0010] Preferably, the measuring component includes a positioning element, which is disposed inside the A buffer housing and the B buffer housing is fixedly inserted through the positioning element, and a spring tube is disposed on the positioning element.

[0011] Preferably, the end of the spring tube is provided with an insert, the B buffer housing is provided with a discharge groove, the insert is disposed in the discharge groove, and the B buffer housing is in communication with the spring tube.

[0012] Preferably, the measuring component further includes a gear, which is disposed on the A buffer housing, and a pointer is disposed on the gear. The A buffer housing is provided with a deflector, which meshes with the gear. The deflector is hinged to the spring tube via a hinge shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are: When testing high-pressure pipelines, a primary buffer assembly can be connected to the pipeline. The dual buffering effect of the primary and secondary buffer assemblies prevents damage to the internal measuring components during pressure testing due to high pressure, thus ensuring measurement accuracy. By using the primary and secondary buffer assemblies in conjunction, double buffering protection is provided for the measuring components, preventing damage from strong pressure when the device is installed on the high-pressure pipeline, which could affect the accuracy of the measuring components. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a first partial exploded view of the present invention; Figure 4 This is a second partial exploded view of the present invention.

[0015] In the diagram: 1. Primary buffer assembly; 11. Buffer housing A; 12. Inlet tube; 13. Baffle A; 14. Spring A; 15. Fixing component A; 16. Fixing component B; 17. Damping structure A; 2. Secondary buffer assembly; 21. Buffer housing B; 22. Transmission tube; 23. Baffle B; 24. Spring B; 25. Damping structure B; 26. Limiting block; 27. Limiting groove; 28. Outlet groove; 29. ​​Insertion component; 3. Main assembly; 31. Main housing; 32. Cover plate; 33. Pressure relief component; 4. Measuring assembly; 41. Positioning component; 42. Bourdon tube; 43. Pointer; 44. Gear; 45. Deflection component; 46. Hinge shaft. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 This utility model provides a pressure gauge movement mechanical structure suitable for high-pressure environments, including a main body component 3, a secondary buffer component 2 on the main body component 3 for secondary buffering of high pressure in the pipeline, a primary buffer component 1 on the secondary buffer component 2 for primary buffering of high pressure in the pipeline, and a measuring component 4 inside the main body component 3. The main body component 3 includes a main housing 31, a cover plate 32 is provided on the main housing 31, and the gap between the main housing 31 and the cover plate 32 is sealed by sealant. A pressure relief component 33 is provided on the main housing 31.

[0018] Specifically, when testing high-pressure pipelines, the primary buffer component 1 can be connected to the pipeline. Through the dual buffering effect of the primary buffer component 1 and the secondary buffer component 2, the measuring component 4 inside the main component 3 will not be damaged due to high pressure during pressure testing, thus affecting the measurement accuracy.

[0019] In this embodiment, the secondary buffer assembly 2 includes a B buffer shell 21, which is disposed on the main shell 31. A limiting groove 27 is formed on the inner wall of the B buffer shell 21. A B baffle 23 is disposed inside the B buffer shell 21. A limiting block 26 is disposed on the B baffle 23 and disposed within the limiting groove 27. A transmission pipe 22 is disposed on the B buffer shell 21 and communicates with the B buffer shell 21. The secondary buffer assembly 2 also includes a B spring 24. A B damping structure 25 is disposed inside the B buffer shell 21 and its telescopic end is connected to the B baffle 23. The B spring 24 is disposed inside the B buffer shell 21 and sleeved on the B damping structure 25, and the B spring 24 is connected to the B baffle 23.

[0020] Specifically, during the secondary buffering process, the gas in the primary buffer assembly 1 is transported to the B buffer housing 21 through the primary buffer assembly 1. The gas pushes the B baffle 23 to move, and during the movement, it compresses the B spring 24. Meanwhile, the gas at the other end of the B baffle 23 is introduced into the spring tube 42 through the insert 29, causing the spring tube 42 to deform and thus enabling pressure measurement. When the device is removed, the B spring 24 releases its elastic force, pushing the B baffle 23 to move, causing the spring tube 42 to return to its original shape, and thus the pressure gauge returns to zero. To allow the B spring 24 to release its elastic force slowly, a B damping structure 25 can be installed inside the B buffer housing 21.

[0021] In this embodiment, the primary buffer assembly 1 includes an A buffer housing 11, an A baffle 13 is disposed inside the A buffer housing 11, an A spring 14 is disposed inside the A buffer housing 11 and connected to the A baffle 13, and the A buffer housing 11 is connected to the transmission pipe 22; the primary buffer assembly 1 also includes an A fixing member 15, which is disposed on the A baffle 13, a B fixing member 16 is disposed inside the A buffer housing 11, the A fixing member 15 and the B fixing member 16 are hinged together by an A damping structure 17, and an inlet pipe 12 is disposed on the A buffer housing 11.

[0022] Specifically, in practical use, in order to allow the gas in buffer shell 11 (A) to be introduced into buffer shell 21 (B) during the first-stage buffering, a transmission pipe 22 connects buffer shell 11 and buffer shell 21. During use, the gas or liquid in the pipe is introduced into buffer shell 11 through the inlet pipe 12. At this time, the gas or liquid will push baffle 13 (A) to move. When baffle 13 moves, it will compress spring 14 (A) and push the gas inside buffer shell 11 into buffer shell 21 (B) through the transmission pipe 22. During use, under the damping effect of damping structure 17 (A), baffle 13 moves relatively slowly, thus achieving the first-stage buffering effect. When no measurement is needed, spring 14 (A) can release its elastic force, and damping structure 17 (A) can make baffle 13 move slowly, thus avoiding damage to the device.

[0023] In this embodiment, the measuring component 4 includes a positioning member 41, which is disposed inside the A buffer housing 11, and the B buffer housing 21 is fixedly connected through the positioning member 41. A spring tube 42 is disposed on the positioning member 41. An insert 29 is disposed at the end of the spring tube 42. A guide groove 28 is opened on the B buffer housing 21, and the insert 29 is disposed in the guide groove 28. The B buffer housing 21 is connected to the spring tube 42. The measuring component 4 also includes a gear 44, which is disposed on the A buffer housing 11. A pointer 43 is disposed on the gear 44. A deflector 45 is disposed on the A buffer housing 11, and the deflector 45 meshes with the gear 44. The deflector 45 and the spring tube 42 are hinged through a hinge shaft 46.

[0024] Specifically, during measurement, when the Bourdon tube 42 deforms, it will cause the deflector 45 to rotate eccentrically, which in turn will drive the gear 44 to rotate. The rotation of the gear 44 can be indicated by the pointer 43, thereby measuring the pressure of the pipeline. In actual use, a torsion spring can be installed inside the buffer housing 11. After the measurement is completed, the elastic force of the torsion spring will drive the gear 44 to rotate in the opposite direction, thereby causing the pointer 43 to return to zero.

[0025] The working principle and usage process of this utility model are as follows: When testing a high-pressure pipeline, the primary buffer component 1 can be connected to the pipeline. Through the double buffering effect of the primary buffer component 1 and the secondary buffer component 2, the measuring component 4 inside the main component 3 will not be damaged due to high pressure during the pressure test, thus affecting the measurement accuracy.

[0026] During use, gas or liquid in the pipeline is introduced into the A buffer housing 11 through the inlet pipe 12. At this time, the gas or liquid will push the A baffle 13 to move. When the A baffle 13 moves, it will squeeze the A spring 14 and push the gas inside the A buffer housing 11 into the B buffer housing 21 through the transmission pipe 22. During use, under the damping action of the A damping structure 17, the movement of the A baffle 13 is relatively slow, thus achieving a first-level buffering effect. When no measurement is needed, the A spring 14 can release the elastic force, and the A damping structure 17 can make the A baffle 13 move slowly, thereby avoiding damage to the device.

[0027] During secondary buffering, the gas in the primary buffer assembly 1 is transported to the B buffer housing 21 through the primary buffer assembly 1. The gas pushes the B baffle 23 to move, and during the movement, it compresses the B spring 24. At the same time, the gas at the other end of the B baffle 23 is introduced into the Bourdon tube 42 through the insert 29, causing the Bourdon tube 42 to deform, thereby enabling pressure measurement. When the device is removed, the B spring 24 releases its elastic force, thereby pushing the B baffle 23 to move, causing the Bourdon tube 42 to return to its original shape, and thus the pressure gauge returns to zero. In order to allow the B spring 24 to release its elastic force slowly, a B damping structure 25 can be set inside the B buffer housing 21.

[0028] When the Bourdon tube 42 deforms, it will cause the deflector 45 to rotate eccentrically, which in turn will drive the gear 44 to rotate. The rotation of the gear 44 can be indicated by the pointer 43, thereby measuring the pressure of the pipeline. In actual use, a torsion spring can be installed inside the buffer housing 11. After the measurement is completed, the elastic force of the torsion spring will drive the gear 44 to rotate in the opposite direction, thereby causing the pointer 43 to return to zero.

[0029] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure gauge movement mechanical structure suitable for high-pressure environments, comprising a main component (3), characterized in that: The main component (3) is provided with a secondary buffer component (2) for secondary buffering of the high pressure in the pipeline. The secondary buffer component (2) is provided with a primary buffer component (1) for primary buffering of the high pressure in the pipeline. The main component (3) is provided with a measuring component (4). The main component (3) includes a main housing (31), a cover plate (32) is provided on the main housing (31), and the gap between the main housing (31) and the cover plate (32) is sealed by sealant. A pressure relief component (33) is provided on the main housing (31).

2. The pressure gauge movement mechanical structure suitable for high-pressure environments according to claim 1, characterized in that: The secondary buffer assembly (2) includes a B buffer shell (21), which is disposed on the main shell (31). A limiting groove (27) is formed on the inner wall of the B buffer shell (21). A B baffle (23) is disposed inside the B buffer shell (21). A limiting block (26) is disposed on the B baffle (23) and the limiting block (26) is disposed in the limiting groove (27). A transmission pipe (22) is disposed on the B buffer shell (21) and the transmission pipe (22) is connected to the B buffer shell (21).

3. The pressure gauge movement mechanical structure suitable for high-pressure environments according to claim 2, characterized in that: The secondary buffer assembly (2) also includes a B spring (24). A B damping structure (25) is provided inside the B buffer shell (21), and the telescopic end of the B damping structure (25) is connected to the B baffle (23). The B spring (24) is provided inside the B buffer shell (21) and sleeved on the B damping structure (25), and the B spring (24) is connected to the B baffle (23).

4. The pressure gauge movement mechanical structure suitable for high-pressure environments according to claim 2, characterized in that: The primary buffer assembly (1) includes an A buffer housing (11), an A baffle (13) is provided inside the A buffer housing (11), an A spring (14) is provided inside the A buffer housing (11), and the A spring (14) is connected to the A baffle (13). The A buffer housing (11) is connected to the transmission pipe (22).

5. The pressure gauge movement mechanical structure suitable for high-pressure environments according to claim 4, characterized in that: The primary buffer assembly (1) further includes an A fixing member (15), which is disposed on an A baffle (13). A B fixing member (16) is disposed inside the A buffer shell (11). The A fixing member (15) and the B fixing member (16) are hinged together by an A damping structure (17). An inlet tube (12) is disposed on the A buffer shell (11).

6. The pressure gauge movement mechanical structure suitable for high-pressure environments according to claim 2, characterized in that: The measuring component (4) includes a positioning element (41), which is disposed inside the A buffer shell (11) and the B buffer shell (21) is fixedly connected through the positioning element (41). A spring tube (42) is provided on the positioning element (41).

7. The pressure gauge movement mechanical structure suitable for high-pressure environments according to claim 6, characterized in that: The end of the spring tube (42) is provided with an insert (29), and the B buffer shell (21) is provided with a discharge groove (28). The insert (29) is disposed in the discharge groove (28), and the B buffer shell (21) is connected to the spring tube (42).

8. The pressure gauge movement mechanical structure suitable for high-pressure environments according to claim 6, characterized in that: The measuring component (4) also includes a gear (44), which is disposed on the A buffer housing (11). A pointer (43) is disposed on the gear (44). A deflector (45) is disposed on the A buffer housing (11), and the deflector (45) meshes with the gear (44). The deflector (45) is hinged to the spring tube (42) through a hinge shaft (46).

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