High purity dry reed electrical contact pressure gauge

Abstract

The utility model discloses a high -purity dry reed tube electric contact pressure gauge, including watch case and watch cover still include: movement, the movement sets up in the inside of watch case, the axial joint sets up in the inside of watch case, C type pipe, C type pipe sets up in the inside of watch case, and one end of C type pipe with the axial joint one end intercommunication. The novel dry reed tube electric contact device in the utility model, contact package, glass fills with inert gas, and the arc will not be started when gas protection when contact, greatly prolongs the service life, reaches 100 million times or more, the structure design is more exquisite, reasonable, can install very conveniently, utilizes dry reed tube electric contact device and can set up single -pole double -throw, double -pole double -throw, and the customer is conveniently switched to rise alarm, falling alarm, and the surface finish of all the parts of medium contact is Ra 0.5um, effectively protects the medium in high -purity system from being contaminated, and is completely suitable for ultrahigh -purity field environment use.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge technology, and in particular to a high-purity reed switch electric contact pressure gauge. Background Technology

[0002] Integrated engineering systems for the production, transport, and control of high-purity media (such as gases, liquids, or chemicals) are applied in industrial fields with stringent purity requirements. Their core function is to control impurity concentrations at the ppb (parts per billion) to ppt (parts per trillion) level through precision design and manufacturing technology, ensuring the media remains uncontaminated during transport and use. The need for an ultra-high purity environment permeates the entire production process, far exceeding the stringency of ordinary industrial standards. With the rapid development of integrated engineering systems for high-purity media, the precision requirements for the high-purity environment in the manufacturing process have increased accordingly, thus demanding high-cleanliness manufacturing processes. These manufacturing processes require ultra-high purity environments and specific process gas environments. To achieve stable system media pressure, real-time monitoring of system pressure and conversion into electrical signal output are necessary. Existing reed switch devices, such as conventional magnetic column type reed switches, have the disadvantage of being unable to handle small ranges, relying on single-pole single-throw operation. Approaching the set value can easily lead to loose connections, arcing, and reduced lifespan, resulting in a lifespan of only 20,000 cycles. Utility Model Content

[0003] The purpose of this invention is to provide a high-purity reed switch electric contact pressure gauge in order to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-purity reed switch electric contact pressure gauge includes a gauge case and a gauge cover, and further includes:

[0006] The movement is located inside the watch case;

[0007] An axial joint, wherein the axial joint is disposed inside the case;

[0008] A C-shaped tube is disposed inside the watch case, and one end of the C-shaped tube is connected to one end of the axial connector.

[0009] A sealing sheet, wherein the sealing sheet is disposed at one end of the C-shaped tube;

[0010] A connecting rod, one end of which is connected to the mechanism drive, and the other end of which is fixedly connected to the sealing piece by a first rivet;

[0011] The dial is fixedly installed inside the watch case;

[0012] The hands of the watch are rotatably connected to the dial.

[0013] An oil flushing plug is provided on the bottom side of the watch case.

[0014] Preferably, the mechanism further includes a reed switch, a magnet, a dial pin, and a circuit board, with a second rivet on the mechanism and the circuit board mounted on the second rivet.

[0015] Preferably, a second washer is provided between the dial and the circuit board, a first washer is provided on the second rivet, and a butterfly washer is provided between the first washer and the circuit board.

[0016] Preferably, a gate is provided on the side of the watch case, and an adjustment shaft is provided on the outer side of the gate.

[0017] Preferably, a fixing plate is provided on the bottom side of the watch case, and the fixing plate is fixedly connected to the watch case by a first screw. One end of the axial joint extends to the outside of the watch case and is connected to a connecting rod. A movable joint is provided on the outside of the connecting rod, and a threaded protective sleeve is provided on the outside of the movable joint.

[0018] Preferably, a protective film is provided on the side of the watch cover.

[0019] Preferably, the movement is fixedly connected to the watch case by a third screw, and the dial is fixedly connected to the watch case by a second screw.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0021] In this application, a novel reed switch electrical contact device is provided. The contacts are encapsulated, and the glass is filled with inert gas. When the contacts come into contact, the gas protection prevents arcing and greatly extends the service life to more than 1 million cycles. The structural design is more sophisticated and reasonable, and it is very easy to install. The reed switch electrical contact device can be set to single-pole double-throw or double-pole double-throw, allowing customers to switch between rising and falling alarms at will. The surface finish of all parts in contact with the medium is Ra≤0.5μm, which effectively protects the medium in the high-purity system from contamination and is fully suitable for use in ultra-high purity environments. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of a pressure gauge provided according to an embodiment of the present invention is shown;

[0023] Figure 2 A cross-sectional structural schematic diagram of a pressure gauge provided according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of the fixing plate structure provided according to an embodiment of the present utility model is shown;

[0025] Figure 4 A schematic diagram of a connecting rod structure according to an embodiment of the present invention is shown;

[0026] Figure 5 A side view of the axial joint structure according to an embodiment of the present invention is shown;

[0027] Figure 6 A schematic diagram of a sealing sheet structure according to an embodiment of the present invention is shown.

[0028] Legend:

[0029] 1. Watch case; 2. Axial joint; 3. Fixing plate; 4. First screw; 5. Dial; 6. Sealing plate; 7. Second screw; 8. Hand; 9. Movable joint; 10. First rivet; 11. C-tube; 12. Watch cover; 13. Movement; 14. First washer; 15. Second rivet; 16. Second washer; 17. Reed switch; 18. Circuit board; 19. Connecting rod; 20. Third screw; 21. Gland; 22. Adjusting shaft; 23. Protective film; 24. Oil filler plug; 25. Setting pin; 26. Butterfly washer; 27. Threaded protective sleeve; 28. Magnet; 29. ​​Connecting rod. Detailed Implementation

[0030] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-6 This utility model provides a technical solution:

[0032] A high-purity reed switch electric contact pressure gauge includes a case 1 and a cover 12, and further includes: a movement 13 disposed inside the case 1; an axial connector 2 disposed inside the case 1; a C-tube 11 disposed inside the case 1, one end of the C-tube 11 being connected to one end of the axial connector 2; a sealing plate 6 disposed at one end of the C-tube 11; a connecting rod 29, one end of which is connected to the movement 13, and the other end of which is fixedly connected to the sealing plate 6 by a first rivet 10; a dial 5 fixedly disposed inside the case 1; a pointer 8 rotatably connected to the dial 5; an oil filler 24 disposed on the bottom side of the case 1; and the case 1 being filled with inert gas.

[0033] Specifically, such as Figure 3 , Figure 4 and Figure 5 As shown, it also includes a reed switch 17, a magnet 28, a dial pin 25, and a circuit board 18. A second rivet 15 is provided on the movement 13, and the circuit board 18 is provided on the second rivet 15. The dial 5, circuit board 18, reed switch 17, magnet 28, and other parts are integrated into a whole, and the alarm point can be freely set by moving the dial pin 25 through the second rivet 15. A second gasket 16 is provided between the dial 5 and the circuit board 18, a first gasket 14 is provided on the second rivet 15, and a butterfly gasket 26 is provided between the first gasket 14 and the circuit board 18.

[0034] Specifically, such as Figure 1 As shown, a clock face 21 is provided on the side of the watch case 1, and an adjustment shaft 22 is provided on the outer side of the clock face 21.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, a fixing plate 3 is provided on the bottom side of the watch case 1. The fixing plate 3 is fixedly connected to the watch case 1 by the first screw 4. One end of the axial joint 2 extends to the outside of the watch case 1 and is connected to the connecting rod 19. A movable joint 9 is provided on the outside of the connecting rod 19, and a threaded protective sleeve 27 is provided on the outside of the movable joint 9. The connecting rod 19 and the axial joint 2 are interconnected.

[0036] Specifically, such as Figure 1 As shown, a protective film 23 is provided on the side of the watch cover 12; the movement 13 is fixedly connected to the watch case 1 by the third screw 20, and the dial 5 is fixedly connected to the watch case 1 by the second screw 7.

[0037] Working Principle: The working principle of a single-pole double-throw switch is based on its unique mechanical structure. Circuit control is achieved by switching the moving contact between two stationary contacts. The basic structure of a single-pole double-throw switch consists of a moving contact (pole) and two stationary contacts (throw). The moving contact connects to the power input, and the two stationary contacts correspond to different circuit outputs (the stationary contacts are specified by the customer to set circuit A / B). In the initial state, the moving contact is not in contact with any stationary contact. In short, when the pressure rises or falls to the set point (indicated by the toggle switch), a signal is output to control the circuit. A double-pole double-throw switch consists of two moving contacts (pole) and two stationary contacts (throw). Control of the circuit is achieved by simultaneously switching the output electrical signals of two sets of circuits through a toggle action.

[0038] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high purity dry reed electrical contact pressure gauge comprising a gauge case (1) and a gauge cover (12), characterised in that, Also includes: Movement (13), said movement (13) being disposed inside the case (1); Axial connector (2), the axial connector (2) being disposed inside the case (1); C-shaped tube (11), the C-shaped tube (11) is disposed inside the case (1), and one end of the C-shaped tube (11) is connected to one end of the axial connector (2); A sealing piece (6) is disposed at one end of the C-shaped tube (11); Link (29), one end of which is connected to the mechanism (13) for transmission, and the other end of which is fixedly connected to the sealing piece (6) by the first rivet (10); The dial (5) is fixedly installed inside the case (1); The hands (8) are rotatably connected to the dial (5); Oil flushing plug (24) is provided on the bottom side of the watch case (1).

2. The high-purity reed switch electric contact pressure gauge according to claim 1, characterized in that, It also includes a reed switch (17), a magnet (28), a dial pin (25) and a circuit board (18), with a second rivet (15) provided on the mechanism (13) and the circuit board (18) provided on the second rivet (15).

3. A high-purity reed switch electric contact pressure gauge according to claim 2, characterized in that, A second gasket (16) is provided between the dial (5) and the circuit board (18), a first gasket (14) is provided on the second rivet (15), and a butterfly gasket (26) is provided between the first gasket (14) and the circuit board (18).

4. A high-purity reed switch electric contact pressure gauge according to claim 3, characterized in that, The watch case (1) has a gimbal (21) on its side, and an adjustment shaft (22) is provided on the outside of the gimbal (21).

5. A high-purity reed switch electric contact pressure gauge according to claim 4, characterized in that, A fixing plate (3) is provided on the bottom side of the watch case (1). The fixing plate (3) is fixedly connected to the watch case (1) by a first screw (4). One end of the axial joint (2) extends to the outside of the watch case (1) and is connected to a connecting rod (19). A movable joint (9) is provided on the outside of the connecting rod (19). A threaded protective sleeve (27) is provided on the outside of the movable joint (9).

6. A high-purity reed switch electric contact pressure gauge according to claim 1, characterized in that, The side of the cover (12) is provided with a protective film (23).

7. A high-purity reed switch electric contact pressure gauge according to claim 1, characterized in that, The movement (13) is fixedly connected to the case (1) by a third screw (20), and the dial (5) is fixedly connected to the case (1) by a second screw (7).

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