A capsule pressure gauge with a damping mechanism

Abstract

The application provides a capsule pressure gauge with a damping mechanism, and belongs to the field of capsule pressure gauges, to solve the problem that the existing capsule pressure gauges cannot stably buffer and damp impact force or vibration force in all directions. The capsule pressure gauge comprises a protective shell, a connecting frame and a capsule pressure gauge body. A through groove is formed through the bottom of the protective shell. A sealing plate is fixedly connected in the through groove. A first sealing gasket is fixedly connected to the bottom of the protective shell. A second sealing gasket is fixedly connected to the top of the protective shell. A clamping groove is formed in the top side end of the protective shell. A first connecting spring is welded and fixed to the side end face of the connecting frame. The cooperation of the clamping rod and the clamping groove, combined with the connecting frame, can conveniently and stably complete the disassembly and installation between the protective shell and the capsule pressure gauge body. The protective shell is clamped and installed, so that the capsule pressure gauge body can be stably sealed, protected and damped.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm pressure gauges, and more specifically, to a diaphragm pressure gauge with a shock-absorbing mechanism. Background Technology

[0002] Diaphragm pressure gauges are important instruments used in industrial production, energy management, environmental monitoring, and other fields to measure minute or negative pressures. Their working principle is based on the elastic deformation of the diaphragm under pressure, which is converted into pointer rotation through a transmission mechanism, and then the pressure value is displayed intuitively on the dial. Due to their compact structure, high sensitivity, and ability to effectively measure non-corrosive gases or vapors, they are widely used in scenarios such as pressure monitoring of chemical reactors, gas pressure regulation of HVAC systems, and pressure control of gas pipelines.

[0003] Existing diaphragm pressure gauges have some problems in practical use. For example, an oil-filled shock-resistant diaphragm pressure gauge with publication number CN215338695U, although equipped with shock-resistant components, has a relatively singular direction for buffering and damping. Therefore, during transportation or outdoor operation, it cannot stably buffer and dampen impacts or vibrations from all directions. Furthermore, it cannot provide convenient and stable sealing and moisture protection during actual operation. As a result, when the diaphragm pressure gauge is used in a humid environment, the internal metal parts are prone to rust due to moisture, which in turn affects the normal operation of the diaphragm pressure gauge itself. Therefore, we have made improvements to this by proposing a diaphragm pressure gauge with a shock-absorbing mechanism. Utility Model Content

[0004] The purpose of this invention is to address the problems of existing diaphragm pressure gauges, which cannot stably buffer and reduce impacts or vibrations from all directions, and which cannot provide convenient and stable sealing and moisture protection.

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

[0006] A diaphragm pressure gauge with a shock-absorbing mechanism is used to improve the above-mentioned problems.

[0007] The application is as follows:

[0008] The device includes a protective housing, a connecting frame, and a diaphragm pressure gauge body. A through groove is formed at the bottom of the protective housing, and a sealing plate is fixedly connected within the groove. A first sealing gasket is fixedly connected to the bottom of the protective housing, and a second sealing gasket is fixedly connected to the top of the protective housing. A slot is formed at the top side of the protective housing. A first connecting spring is welded to the side face of the connecting frame, and a locking rod is welded to the first connecting spring. The locking rod is slidably connected to the connecting frame, and its end engages with the slot. A first fixing plate is welded to the inside of the protective housing, and a damping cylinder and a shock-absorbing spring are welded to the first fixing plate. The other ends of the damping cylinder and the shock-absorbing spring are welded to a connecting plate. A connecting rod is hinged to the connecting plate, and a guide block is hinged to the other end of the connecting rod. A connector is connected to the bottom of the diaphragm pressure gauge body, and a second fixing plate and a fixing mesh frame are welded to the diaphragm pressure gauge body.

[0009] As a preferred technical solution of this application, two protective shells are provided, which are symmetrically distributed on both sides of the diaphragm pressure gauge body. The cross-section of the protective shell and the sealing plate are both semi-circular, and the through groove is semi-circular.

[0010] As a preferred technical solution of this application, a limiting plate is welded and fixed inside the protective shell, and a third sealing gasket is fixedly connected to the limiting plate. The limiting plate is semi-circular and there are two sets of limiting plates. Each set of limiting plates has two plates. One set of limiting plates is symmetrically distributed on both sides of the front end cover, and the other set of limiting plates is symmetrically distributed on both sides of the rear end cover. The front end cover is made of transparent material, and both the front end cover and the rear end cover are in contact with the third sealing gasket.

[0011] As a preferred technical solution of this application, the second fixing plate is distributed at equal angles on the body of the diaphragm pressure gauge. A guide groove is provided in the second fixing plate. The guide groove is arc-shaped. The second fixing plate corresponds to the guide block one by one. The end of the guide block is hemispherical. The connecting rod is symmetrically distributed on both sides of the guide block. The connecting rod corresponds to the damping cylinder one by one through the connecting plate.

[0012] As a preferred technical solution of this application, the damping cylinder corresponds one-to-one with the shock-absorbing spring and the first fixed plate, and the shock-absorbing spring is sleeved on the damping cylinder.

[0013] As a preferred technical solution of this application, the fixed mesh frame is evenly distributed on the diaphragm pressure gauge body, and a storage mesh frame is slidably connected within the fixed mesh frame. A magnetic cover plate is magnetically attached to the end of the storage mesh frame. An extension plate is welded and fixed to the fixed mesh frame, and a second connecting spring is welded and fixed to the extension plate. A stop bar is welded and fixed to the second connecting spring, and the stop bar is slidably connected through the extension plate. The stop bar is in contact with the magnetic cover plate, and a desiccant is provided inside the storage mesh frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the scheme of this application:

[0016] 1. Through the cooperation of the set clamps and slots, combined with the connecting frame, the disassembly and installation between the protective shell and the diaphragm pressure gauge body can be completed conveniently and stably; by snapping the protective shell into place, the diaphragm pressure gauge body can be stably sealed and shock-absorbing; by disassembling the protective shell, the subsequent inspection and maintenance of the diaphragm pressure gauge body can be made convenient, increasing the safety and convenience of using the diaphragm pressure gauge.

[0017] 2. Through the guiding cooperation between the guide groove and the guide block, the vibration or impact force on the protective shell can be transmitted to the damping cylinder and shock-absorbing spring through the connecting rod. At this time, under the joint action of each damping cylinder and the corresponding shock-absorbing spring, the vibration or impact force on the protective shell in all directions can be buffered and protected, thereby realizing the shock absorption and protection of the diaphragm pressure gauge body, ensuring the stability and safety of the diaphragm pressure gauge body in outdoor working conditions.

[0018] 3. The desiccant in each storage frame can further dehumidify and protect the sealed diaphragm pressure gauge body, preventing internal metal parts from rusting due to moisture during operation in humid environments, which would affect the normal operation of the diaphragm pressure gauge body; and the cooperation of the fixed frame and the stop bar can easily complete the disassembly and assembly of the storage frame, thus ensuring the convenience of subsequent desiccant replacement. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall three-dimensional structure of the diaphragm pressure gauge with a shock-absorbing mechanism provided for this application;

[0020] Figure 2 A schematic diagram of the protective housing and through-slot connection structure of the diaphragm pressure gauge with shock absorption mechanism provided in this application;

[0021] Figure 3 The diaphragm pressure gauge with shock absorption mechanism provided in this application Figure 2Enlarged structural diagram at point A in the middle;

[0022] Figure 4 A schematic diagram of the overall main cross-sectional structure of the diaphragm pressure gauge with a shock-absorbing mechanism provided for this application;

[0023] Figure 5 The diaphragm pressure gauge with shock absorption mechanism provided in this application Figure 4 Enlarged structural diagram at point B;

[0024] Figure 6 The diaphragm pressure gauge with shock absorption mechanism provided in this application Figure 4 Enlarged structural diagram at point C;

[0025] Figure 7 A side view of the protective housing structure of the diaphragm pressure gauge with shock absorption mechanism provided in this application;

[0026] Figure 8 The diaphragm pressure gauge with shock absorption mechanism provided in this application Figure 7 Enlarged structural diagram at point D;

[0027] Figure 9 A side sectional view of the fixed grid frame structure of the diaphragm pressure gauge with a shock absorption mechanism provided in this application.

[0028] The diagram shows: 1. Protective outer shell; 2. Through groove; 3. Sealing plate; 4. First sealing gasket; 5. Second sealing gasket; 6. Limiting plate; 7. Third sealing gasket; 8. Front cover; 9. Rear cover; 10. Slot; 11. Connecting frame; 12. First connecting spring; 13. Locking rod; 14. First fixing plate; 15. Damping cylinder; 16. Shock-absorbing spring; 17. Connecting plate; 18. Connecting rod; 19. Guide block; 20. Diaphragm pressure gauge body; 21. Connector; 22. Second fixing plate; 23. Guide groove; 24. Fixing mesh frame; 25. Storage mesh frame; 26. Magnetic cover plate; 27. Extension plate; 28. Second connecting spring; 29. ​​Stop bar. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Example 1:

[0035] like Figures 1-9 As shown, this embodiment proposes a diaphragm pressure gauge with a shock-absorbing mechanism, including a protective shell 1, a connecting frame 11, and a diaphragm pressure gauge body 20. A through groove 2 is formed at the bottom of the protective shell 1, and a sealing plate 3 is fixedly connected within the through groove 2. A first sealing gasket 4 is fixedly connected to the bottom of the protective shell 1, and a second sealing gasket 5 is fixedly connected to the top of the protective shell 1. A slot 10 is formed at the top side of the protective shell 1. A first connecting spring 12 is welded and fixed to the side surface of the connecting frame 11, and a locking rod 13 is welded and fixed to the first connecting spring 12, allowing the locking rod 13 to slide through. Connected to the connecting frame 11, the end of the clamping rod 13 is engaged in the slot 10. A first fixing plate 14 is welded and fixed inside the protective shell 1. A damping cylinder 15 and a shock-absorbing spring 16 are welded and fixed on the first fixing plate 14. The other ends of the damping cylinder 15 and the shock-absorbing spring 16 are welded and fixed on the connecting plate 17. A connecting rod 18 is hinged on the connecting plate 17. A guide block 19 is hinged to the other end of the connecting rod 18. A connector 21 is connected to the bottom of the diaphragm pressure gauge body 20. A second fixing plate 22 and a fixing mesh frame 24 are welded and fixed on the diaphragm pressure gauge body 20.

[0036] Example 2:

[0037] The following section provides a further description of the scheme in Example 1, focusing on its specific working method. See the description below for details:

[0038] like Figure 1 and Figure 2As shown, in a preferred embodiment, based on the above method, there are two protective shells 1, which are symmetrically distributed on both sides of the diaphragm pressure gauge body 20. The cross-section of the protective shell 1 and the sealing plate 3 are both semi-circular, and the through groove 2 is semi-circular. Under the action of the sealing plate 3 inside the through groove 2, the seal between the connector 21 and the protective shell 1 can be completed.

[0039] like Figures 1-3 As shown, in a preferred embodiment, based on the above method, a limiting plate 6 is welded and fixed inside the protective shell 1. A third sealing gasket 7 is fixedly connected to the limiting plate 6. The limiting plate 6 is semi-circular and there are two sets of limiting plates 6. Each set of limiting plates 6 has two plates. One set of limiting plates 6 is symmetrically distributed on both sides of the front end cover 8, and the other set of limiting plates 6 is symmetrically distributed on both sides of the rear end cover 9. The front end cover 8 is made of transparent material. Both the front end cover 8 and the rear end cover 9 are in contact with the third sealing gasket 7. Under the action of the third sealing gasket 7, the limiting plate 6 can complete the sealing between the front end cover 8 and the rear end cover 9 and the protective shell 1.

[0040] like Figure 4 , Figure 6 and Figure 7 As shown, in a preferred embodiment, based on the above method, the second fixing plate 22 is further distributed at equal angles on the diaphragm pressure gauge body 20. A guide groove 23 is formed within the second fixing plate 22, and the guide groove 23 is arc-shaped. The second fixing plate 22 corresponds one-to-one with the guide block 19. The end of the guide block 19 is hemispherical. Connecting rods 18 are symmetrically distributed on both sides of the guide block 19. The connecting rods 18 correspond one-to-one with the damping cylinder 15 through the connecting plate 17. The damping cylinder 15 is connected to the shock-absorbing spring 16 and the second fixing plate 19 respectively. One fixed plate 14 corresponds to one, and the shock-absorbing spring 16 is sleeved on the damping cylinder 15. With the guiding cooperation between the guide groove 23 and the guide block 19, the vibration or impact force of the protective shell 1 is transmitted to the damping cylinder 15 and the shock-absorbing spring 16 through the connecting rod 18. At this time, under the joint action of each damping cylinder 15 and the corresponding shock-absorbing spring 16, the vibration or impact force received by the protective shell 1 in all directions can be buffered and protected, thereby realizing the shock absorption and protection of the diaphragm pressure gauge body 20.

[0041] like Figure 4 , Figure 5 and Figures 7-9As shown, in a preferred embodiment, based on the above method, the fixed mesh frames 24 are further distributed at equal angles on the diaphragm pressure gauge body 20. A storage mesh frame 25 is slidably connected within the fixed mesh frames 24. A magnetic cover plate 26 is magnetically attached to the end of the storage mesh frame 25. An extension plate 27 is welded and fixed to the fixed mesh frames 24. A second connecting spring 28 is welded and fixed to the extension plate 27. A stop rod 29 is welded and fixed to the second connecting spring 28. The stop rod 29 is slidably connected to the extension plate 27 and is in contact with the magnetic cover plate 26. A desiccant is provided inside the storage mesh frames 25. Using the desiccant in each storage mesh frame 25, the sealed diaphragm pressure gauge body 20 can be further dehumidified and protected. Furthermore, the cooperation between the fixed mesh frames 24 and the stop rod 29 allows for convenient assembly and disassembly of the storage mesh frames 25, thus ensuring convenient replacement of the desiccant.

[0042] Specifically, when using the diaphragm pressure gauge with shock absorption mechanism: First, the operator can pour the desiccant into the storage mesh frame 25. After pouring, the magnetic cover plate 26 can be placed on the port of the storage mesh frame 25 and fixed magnetically to close the port of the storage mesh frame 25. Then, the storage mesh frame 25 can be inserted into the fixed mesh frame 24 on the diaphragm pressure gauge body 20. Before insertion, the operator needs to pull the stop bar 29 on the extension plate 27 in advance to prevent the stop bar 29 from blocking the insertion of the storage mesh frame 25. After the storage mesh frame 25 is inserted into the fixed mesh frame 24, the stop bar 29 can be released. At this time, under the elastic action of the second connecting spring 28, the stop bar 29 can be driven to move and reset, blocking the storage mesh frame 25. Combined with the fixed mesh frame 24, the locking and installation of the storage mesh frame 25 is completed.

[0043] Through the same operation, the snap-fit ​​installation of each storage frame 25 can be completed. Then, the operator can align and splice the two protective shells 1 on both sides of the diaphragm pressure gauge body 20, and cover the diaphragm pressure gauge body 20. At the same time, the operator can place the front cover 8 between the two limiting plates 6 at the front of the protective shell 1 and place the rear cover 9 between the two limiting plates 6 at the rear of the protective shell 1. After the protective shells 1 are aligned and spliced, the limiting plates 6 can be used to simultaneously complete the limiting installation of the front cover 8 and the rear cover 9. At this time, the operator can pull the locking rod 13 on the connecting frame 11 outward, and at the same time snap the connecting frame 11 to the top of the protective shell 1. Then, the locking rod 13 can be released. Under the elastic action of the first connecting spring 12, the locking rod 13 can be driven to automatically snap into the slot 10 on the protective shell 1. Combined with the connecting frame 11, the snap-fit ​​installation of the two protective shells 1 can be completed, and the protective shells 1 can be installed and fixed on the diaphragm pressure gauge body 20.

[0044] After the protective housing 1 is installed, the first sealing gasket 4 and the second sealing gasket 5 can seal the connection between the two protective housings 1. Similarly, the third sealing gasket 7, combined with the limiting plate 6, can seal the front cover 8 and the rear cover 9 with the protective housing 1. Furthermore, the sealing plate 3 inside the through groove 2 can seal the joint 21 with the protective housing 1, thus providing stable sealing protection for the diaphragm pressure gauge body 20. During the operation of the diaphragm pressure gauge body 20, the desiccant inside each storage mesh frame 25 can further dehumidify the sealed diaphragm pressure gauge body 20, preventing the internal metal parts of the diaphragm pressure gauge body 20 from rusting due to moisture during operation in a humid environment, which would affect the normal operation of the diaphragm pressure gauge body 20.

[0045] Furthermore, after the protective housing 1 is installed, it can drive each guide block 19 to insert into the guide groove 23 on the corresponding second fixing plate 22. Therefore, when the diaphragm pressure gauge body 20 is transported or during outdoor operation, if the protective housing 1 is subjected to external vibration or impact, the protective housing 1 will vibrate. At this time, the protective housing 1 will shift relative to the diaphragm pressure gauge body 20. When the protective housing 1 shifts, it can gradually pass through the first fixing plate 14, damping cylinder 15, connecting plate 17 and connecting rod 18, driving the guide block 19 into the guide groove in the second fixing plate 22. The guide block 19 moves at 23 locations. During the movement of the guide block 19, the guide block 19 can be pushed towards the protective shell 1 by the guiding action of the arc surface of the guide groove 23. Then, the damping cylinder 15 can be squeezed by the connecting plate 17 on the connecting rod 18. At this time, under the joint action of each damping cylinder 15 and the corresponding shock-absorbing spring 16, the vibration or impact force received by the protective shell 1 in various directions can be buffered and protected, thereby realizing the shock absorption and protection of the diaphragm pressure gauge body 20, ensuring the stability and safety of the diaphragm pressure gauge body 20 during transportation or outdoor operation.

[0046] When it is necessary to disassemble and repair the diaphragm pressure gauge body 20, simply pull the lever 13 on the connecting frame 11 to disengage it from the slot 10 on the protective shell 1, and the protective shell 1 can be disassembled. Similarly, the staff only needs to pull the stop bar 29 on the extension plate 27 to disengage it from the magnetic cover plate 26, and then the staff can disassemble the storage mesh frame 25 to ensure the convenience of subsequent desiccant replacement.

[0047] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.

Claims

1. A diaphragm pressure gauge with a shock-absorbing mechanism, comprising a protective shell (1), a connecting frame (11), and a diaphragm pressure gauge body (20), characterized in that, The bottom of the protective shell (1) has a through groove (2), a sealing plate (3) is fixedly connected in the through groove (2), a first sealing gasket (4) is fixedly connected to the bottom of the protective shell (1), a second sealing gasket (5) is fixedly connected to the top of the protective shell (1), a slot (10) is provided on the top side of the protective shell (1), a first connecting spring (12) is welded and fixed to the side surface of the connecting frame (11), a locking rod (13) is welded and fixed to the first connecting spring (12), the locking rod (13) is slidably connected to the connecting frame (11), and the end of the locking rod (13) is engaged with the locking rod. Inside the groove (10), a first fixing plate (14) is welded and fixed inside the protective shell (1). A damping cylinder (15) and a shock-absorbing spring (16) are welded and fixed on the first fixing plate (14). The other end of the damping cylinder (15) and the other end of the shock-absorbing spring (16) are welded and fixed on the connecting plate (17). A connecting rod (18) is hinged on the connecting plate (17). A guide block (19) is hinged on the other end of the connecting rod (18). A connector (21) is connected to the bottom of the diaphragm pressure gauge body (20). A second fixing plate (22) and a fixing mesh frame (24) are welded and fixed on the diaphragm pressure gauge body (20).

2. A diaphragm pressure gauge with a shock-absorbing mechanism according to claim 1, characterized in that, There are two protective shells (1), which are symmetrically distributed on both sides of the diaphragm pressure gauge body (20). The cross-section of the protective shell (1) and the sealing plate (3) are both semi-circular, and the through groove (2) is semi-circular.

3. A diaphragm pressure gauge with a shock-absorbing mechanism according to claim 2, characterized in that, The protective shell (1) is welded and fixed with a limiting plate (6). A third sealing gasket (7) is fixedly connected to the limiting plate (6). The limiting plate (6) is semi-circular. There are two sets of limiting plates (6), and each set of limiting plates (6) has two plates. One set of limiting plates (6) is symmetrically distributed on both sides of the front end cover (8), and the other set of limiting plates (6) is symmetrically distributed on both sides of the rear end cover (9). The front end cover (8) is made of transparent material. Both the front end cover (8) and the rear end cover (9) are in contact with the third sealing gasket (7).

4. A diaphragm pressure gauge with a shock-absorbing mechanism according to claim 1, characterized in that, The second fixing plate (22) is evenly distributed on the diaphragm pressure gauge body (20). The second fixing plate (22) has a guide groove (23) inside. The guide groove (23) is arc-shaped. The second fixing plate (22) corresponds to the guide block (19) one by one. The end of the guide block (19) is hemispherical. The connecting rod (18) is symmetrically distributed on both sides of the guide block (19). The connecting rod (18) corresponds to the damping cylinder (15) one by one through the connecting plate (17).

5. A diaphragm pressure gauge with a shock-absorbing mechanism according to claim 4, characterized in that, The damping cylinder (15) corresponds one-to-one with the shock-absorbing spring (16) and the first fixed plate (14), and the shock-absorbing spring (16) is sleeved on the damping cylinder (15).

6. A diaphragm pressure gauge with a shock-absorbing mechanism according to claim 1, characterized in that, The fixed mesh frame (24) is evenly distributed on the diaphragm pressure gauge body (20). The fixed mesh frame (24) is slidably connected to the storage mesh frame (25). The storage mesh frame (25) is magnetically attached to the end of the magnetic cover plate (26). An extension plate (27) is welded and fixed on the fixed mesh frame (24). A second connecting spring (28) is welded and fixed on the extension plate (27). A stop bar (29) is welded and fixed on the second connecting spring (28). The stop bar (29) is slidably connected to the extension plate (27). The stop bar (29) is in contact with the magnetic cover plate (26). A desiccant is provided inside the storage mesh frame (25).

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