A new high purity pressure gauge

Abstract

The utility model discloses a novel high -purity pressure gauge relates to pressure gauge design field, including the shell, the assembly and the protection unit of assembly and protection, its characterized in that, the lower side of shell is equipped with round hole, the shell is provided with axial connector, the axial connector is connected with outer connecting rod on, the shell upside is provided with the protection unit, and the assembly and the protection unit contain organic core fixed plate, C type pipe, sealing piece, movement, dial, zero setting watch needle and steel ball, one organic core fixed plate is arranged in the shell, the dial is connected with the dial through dial screw in the shell, the dial and organic core fixed plate directly are provided with a C type pipe, the C type pipe is welded with sealing piece on, and the corrosion resistance is stronger, and the precision improves, and the movement can be protected, and the pollution resistance improves, and the sealing property is high, does not influence the device performance.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge design, and in particular to a novel high-purity 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 techniques, 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 the system pressure is necessary.

[0003] Pressure gauges are instruments that use elastic elements as sensing elements to measure and indicate pressures higher than ambient pressure. They are extremely common, found in almost all industrial processes and scientific research fields. They are ubiquitous in areas such as heat pipe networks, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. Especially in industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used due to the high mechanical strength and ease of manufacture of their elastic sensing elements.

[0004] Existing high-purity pressure gauges have weak corrosion resistance, low accuracy, lack of protection for the movement, weak resistance to contamination, poor sealing, and affect device performance. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a new type of high-purity pressure gauge with strong corrosion resistance, improved accuracy, protective mechanism, improved anti-pollution, high sealing performance, and no impact on device performance, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel high-purity pressure gauge, comprising a casing, an assembly unit, and a protective unit, characterized in that:

[0007] Watch case: A round hole is provided on the lower side, an axial joint is provided on the watch case, the axial joint is connected to an external connecting rod, and a protective unit is provided on the upper side of the watch case;

[0008] Assembly and use: Includes a movement fixing plate, C-shaped tube, sealing plate, movement, dial, zero-adjustment hand, and steel ball. A movement fixing plate is installed inside the watch case, and is connected to the dial via dial screws. A C-shaped tube is directly installed between the dial and the movement fixing plate, and the sealing plate is welded to the C-shaped tube. The axial joint is connected to the movement via movement bolts. The movement is mounted on the movement fixing plate. The movement connecting rod in the movement is riveted to the sealing plate via connecting rod rivets. The movement shaft on the movement passes through the dial and connects to the zero-adjustment hand. A steel ball is welded into the air intake chamber inside the axial joint.

[0009] The case is used for fixed protection; the external connecting rod is used for external connection, facilitating connection; the protective unit is used for protection; the movement fixing plate is used to fix and limit the movement; the movement is used to control the internal mechanism, facilitating the conversion of changes in the C-tube into the rotation of the zero-adjustment needle for pressure detection; the C-tube allows the external detection source to flow in, generating changes for pressure detection; the sealing plate seals one end of the C-tube and also connects to the movement; the dial displays the scale; the zero-adjustment needle rotates to display data for pressure detection; the steel ball is used to fix and seal the air intake chamber, improving the sealing effect and performance for protection; the movement uses a 50 movement, and the components are made of 316L stainless steel for corrosion resistance.

[0010] Furthermore, the assembly also includes a connector and an external threaded protective sleeve. The outer side of the external connecting rod is connected to the connector through the external threaded protective sleeve, and the connector is connected to the outside.

[0011] The connector and external threaded protective sleeve are used together to facilitate connection with the outside for external installation and use, thus making it convenient to use.

[0012] Furthermore, the assembly also includes an oil-filled plug, and a pressure relief hole is provided at the bottom of the watch case, with an oil-filled plug installed inside the pressure relief hole.

[0013] Oil-filled plugs are used for pressure relief and dust prevention to prevent contaminants from polluting the internal structure and increasing service life.

[0014] Furthermore, the protective unit includes a watch cover, an observation protective glass plate, and a sealing strip. The outer surface of the watch case is provided with external threads, and the inner side of the watch cover is provided with internal threads. The internal threads are threadedly connected to the external threads. The watch case is connected to the watch cover via the threads. An observation circular hole is opened on the watch cover, and an observation protective glass plate is placed inside the observation circular hole. The observation protective glass plate corresponds to the watch dial. A sealing strip is provided on the inner surface of the watch cover at the edge of the observation protective glass plate. A sealing groove is opened on the side of the watch case near the watch cover, and the sealing groove is engaged with the sealing strip.

[0015] The dial cover is used to fix and protect the dial, the observation protective glass plate is used for observation, and the sealing strip is used for sealing and protection to prevent dust from entering the device.

[0016] Furthermore, the protective unit also includes a luminous layer, and the zeroing needle and the scale on the dial are provided with a luminous layer.

[0017] The luminescent layer uses luminescent powder to facilitate the display of measurement results and make observation easier.

[0018] Furthermore, the protective unit also includes a protective film, which is provided on the outer surface of the observation protective glass plate.

[0019] Protective films are used to protect glass, thereby extending the lifespan of the device.

[0020] Furthermore, the zeroing assembly includes a connecting shaft, a connecting gear, a zeroing shaft, a zeroing gear, and an adjustment knob. A power gear is provided on the movement shaft in the movement. The dial is fixedly connected to the connecting shaft via a rotating seat on the side near the power gear. A connecting gear is fixedly sleeved on the connecting shaft. A circular hole is provided on the dial. The zeroing shaft is rotatably connected to the zeroing shaft via a bearing in the circular hole. The zeroing shaft is fixedly connected to the zeroing gear. An adjustment knob is provided at the front end of the zeroing shaft. The connecting gear is meshed with the zeroing gear and the power gear respectively.

[0021] The adjustment knob drives the zero-adjustment shaft to rotate, which in turn rotates the zero-adjustment gear. The zero-adjustment gear then rotates the connecting gear, which in turn rotates the connecting shaft, which in turn rotates the power gear, thus resetting the zero-adjustment needle for adjustment.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This new type of high-purity pressure gauge has the following advantages: It is equipped with an assembly for use. The movement fixing plate is used to fix the limiting movement. The movement is used to control the internal structure, which facilitates the conversion of changes in the C-shaped tube into the rotation of the zero-adjustment needle for pressure detection. The C-shaped tube is used to allow the external detection source to flow in and generate changes, which is convenient for pressure detection. The sealing plate is used to seal one end of the C-shaped tube and also connects to the movement. The dial is used to display the scale. The zero-adjustment needle is used for rotation. The connector and the external threaded protective sleeve cooperate to facilitate external connection and installation. The oil filling plug is used for pressure relief and dust prevention for pressure detection.

[0024] 2. This new type of high-purity pressure gauge has the following advantages: it is equipped with a protective unit, a cover for fixing and protecting the dial, a protective glass plate for observation, a sealing strip for sealing and protection, a luminous layer for easy display of measurement results, and a protective film for protecting the glass.

[0025] 3. This new type of high-purity pressure gauge has the following advantages: strong corrosion resistance, improved accuracy, protective mechanism, improved anti-pollution performance, high sealing performance, and does not affect the performance of the device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the front rectangular structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the back structure of the watch cover of this utility model;

[0030] Figure 5 This is a schematic diagram of the front cross-sectional structure of the watch cover of this utility model;

[0031] Figure 6 This is a schematic diagram of the zero-adjustment component of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Watch case, 2. External connecting rod, 3. Assembly assembly, 31. Movement fixing plate, 32. C-shaped tube, 33. Sealing plate, 34. Connector, 35. External thread protective sleeve, 36. Movement, 37. Dial, 38. Zero adjustment needle, 39. Steel ball, 310. Oil filling plug, 4. Protective unit, 41. Watch cover, 42. Observation protective glass plate, 43. Protective film, 44. Sealing strip, 45. Luminous layer, 5. Zero adjustment assembly, 51. Connecting shaft, 52. Connecting gear, 53. Zero adjustment shaft, 54. Zero adjustment gear, 55. Adjustment knob. Detailed Implementation

[0034] 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.

[0035] Please see Figure 1-6This embodiment provides a technical solution: a novel high-purity pressure gauge, comprising a casing 1, an assembly assembly 3, and a protective unit 4, characterized in that:

[0036] Case 1: A round hole is provided on the lower side. An axial joint is provided on the case 1. The axial joint is connected to the outer connecting rod 2. A protective unit 4 is provided on the upper side of the case 1.

[0037] Assembly 3 includes a movement fixing plate 31, a C-shaped tube 32, a sealing plate 33, a movement 36, a dial 37, a zero-adjustment needle 38, and a steel ball 39. A movement fixing plate 31 is installed inside the watch case 1. The watch case 1 is connected to the dial 37 by dial screws. A C-shaped tube 32 is directly installed between the dial 37 and the movement fixing plate 31. The sealing plate 33 is welded to the C-shaped tube 32. The axial joint is connected to the movement 36 by movement bolts. The movement 36 is set on the movement fixing plate 31. The movement connecting rod in the movement 36 is riveted to the sealing plate 33 by connecting rod rivets. The movement shaft on the movement 36 passes through the dial 37 and is connected to the zero-adjustment needle 38. A steel ball 39 is welded into the air intake chamber inside the axial joint.

[0038] The case 1 is used for fixed protection. The external connecting rod 2 is used for external connection for easy connection. The protective unit 4 is used for protection. The movement fixing plate 31 is used to fix the limiting movement 36. The movement 36 is used to control the internal movement, so that the change of the C-shaped tube 32 is converted into the rotation of the zeroing needle 38 for pressure detection. The C-shaped tube 32 is used to allow the external detection source to flow in and generate changes for pressure detection. The sealing plate 33 is used to seal one end of the C-shaped tube 32 and also connects to the movement. The dial 37 is used to display the scale. The zeroing needle 38 rotates to display data for pressure detection. The steel ball 39 is used to fix and seal the air intake chamber to improve the sealing effect of the air intake chamber, improve performance, and facilitate protection. The movement 36 uses a 50 movement, and the device is made of 316L stainless steel for corrosion resistance.

[0039] The assembly 3 also includes a connector 34 and an external threaded protective sleeve 35. The outer side of the outer connecting rod 2 is connected to the connector 34 through the external threaded protective sleeve 35, and the connector 34 is connected to the outside.

[0040] The connector 34 and the external threaded protective sleeve 35 are used together to facilitate connection with the outside for external installation and use, thus making it convenient to use.

[0041] The assembly 3 also includes an oil filling plug 310. A pressure relief hole is provided at the bottom of the housing 1, and an oil filling plug 310 is installed inside the pressure relief hole.

[0042] The oil-filled plug 310 is used for pressure relief and dust prevention to prevent contaminants from polluting the internal structure and increasing service life.

[0043] The protective unit 4 includes a cover 41, an observation protective glass plate 42, and a sealing strip 44. The outer surface of the watch case 1 is provided with an external thread, and the inner side of the cover 41 is provided with an internal thread. The internal thread and the external thread are threadedly connected. The watch case 1 is connected to the cover 41 through the thread. An observation circular hole is opened on the cover 41, and an observation protective glass plate 42 is placed in the observation circular hole. The observation protective glass plate 42 corresponds to the dial 37. A sealing strip 44 is provided on the inner surface of the cover 41 at the edge of the observation protective glass plate 42. A sealing groove is opened on the side of the watch case 1 near the cover 41. The sealing groove and the sealing strip 44 are correspondingly engaged.

[0044] The dial cover 41 is used to fix and protect the dial, the observation protective glass plate 42 is used for observation, and the sealing strip 44 is used for sealing and protection to prevent dust from entering the device.

[0045] The protective unit 4 also includes a luminous layer 45, and the zeroing hand 38 and the scale on the dial 37 are provided with the luminous layer 45.

[0046] The luminescent layer 45 uses luminescent powder to facilitate the display of measurement results and make observation easier.

[0047] The protective unit 4 also includes a protective film 43, which is provided on the outer surface of the protective glass plate 42.

[0048] The protective film 43 is used to protect the glass, thereby extending the lifespan of the device.

[0049] The zeroing assembly 5 includes a connecting shaft 51, a connecting gear 52, a zeroing shaft 53, a zeroing gear 54, and an adjustment knob 55. A power gear is provided on the movement shaft in the movement 36. The dial 37 is fixedly connected to the connecting shaft 51 via a rotating seat on the side near the power gear. A connecting gear 52 is fixedly sleeved on the connecting shaft 51. A circular hole is provided on the dial 37. The zeroing shaft 53 is rotatably connected to the zeroing shaft 53 via a bearing. The zeroing shaft 53 is fixedly connected to the zeroing gear 54. An adjustment knob 55 is provided at the front end of the zeroing shaft 53. The connecting gear 52 is meshed with the zeroing gear 54 and the power gear respectively.

[0050] Adjusting knob 55 drives zeroing shaft 53 to rotate, which in turn causes zeroing gear 54 to rotate. Zeroing gear 54 causes connecting gear 52 to rotate, which in turn causes connecting shaft 51 to rotate, which in turn causes power gear to rotate, thereby resetting zeroing needle 38 for reset adjustment.

[0051] The working principle of this novel high-purity pressure gauge is as follows: First, the movement fixing plate 31 is used to fix the limiting movement 36. The movement 36 controls the internal mechanism, facilitating the conversion of changes in the C-shaped tube 32 into the rotation of the zero-adjustment needle 38 for pressure detection. The C-shaped tube 32 allows external detection sources to flow in, generating changes for pressure detection. The sealing plate 33 seals one end of the C-shaped tube 32 and also connects to the movement. The dial 37 displays the scale, and the zero-adjustment needle 38 rotates. The connector 34 and the external threaded protective sleeve 35 cooperate to facilitate external connection and installation. Oil filling is then performed. The plug 310 is used for pressure relief and dust prevention, while the cover 41 is used to fix and protect the dial. The observation protective glass plate 42 is used for observation. The sealing strip 44 is used for sealing and protection. The luminous layer 45 uses luminous powder to facilitate the display of measurement results. The protective film 43 is used to protect the glass. When zeroing is required, the zeroing shaft 53 is rotated by adjusting the knob 55, which in turn rotates the zeroing gear 54. The zeroing gear 54 rotates the connecting gear 52, which in turn rotates the connecting shaft 51, which in turn rotates the power gear, so that the zeroing needle 38 is reset for zeroing and reset purposes.

[0052] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel high-purity pressure gauge, comprising a casing (1), an assembly assembly (3), and a protective unit (4), characterized in that: Watch case (1): A round hole is provided on the lower side. An axial joint is provided on the watch case (1). The axial joint is connected to an external connecting rod (2). A protective unit (4) is provided on the upper side of the watch case (1). Assembly and use (3): Includes a movement fixing plate (31), a C-shaped tube (32), a sealing piece (33), a movement (36), a dial (37), a zeroing needle (38), and a steel ball (39). A movement fixing plate (31) is provided inside the watch case (1). The watch case (1) is connected to the dial (37) by dial screws. A C-shaped tube (32) is directly provided between the dial (37) and the movement fixing plate (31). The axial joint is welded to the sealing plate (33) on the tube (32), and connected to the movement (36) by the movement bolt. The movement (36) is set on the movement fixing plate (31). The movement connecting rod in the movement (36) is riveted to the sealing plate (33) by the connecting rod rivet. The movement shaft on the movement (36) passes through the dial (37) and is connected to the zero adjustment needle (38). A steel ball (39) is welded into the air intake chamber inside the axial joint.

2. The novel high-purity pressure gauge according to claim 1, characterized in that: The assembly (3) also includes a connector (34) and an external threaded protective sleeve (35). The outer side of the external connecting rod (2) is connected to the connector (34) through the external threaded protective sleeve (35), and the connector (34) is connected to the outside.

3. The novel high-purity pressure gauge according to claim 1, characterized in that: The assembly and use (3) also includes an oil filling plug (310), and a pressure relief hole is provided at the bottom of the upper part of the watch case (1), and an oil filling plug (310) is provided in the pressure relief hole.

4. A novel high-purity pressure gauge according to claim 1, characterized in that: The protective unit (4) includes a watch cover (41), an observation protective glass plate (42), and a sealing strip (44). The outer surface of the watch case (1) is provided with an external thread, and the inner side of the watch cover (41) is provided with an internal thread. The internal thread and the external thread are threadedly connected. The watch case (1) is connected to the watch cover (41) through the thread. An observation circular hole is provided on the watch cover (41), and an observation protective glass plate (42) is provided in the observation circular hole. The observation protective glass plate (42) corresponds to the dial (37). A sealing strip (44) is provided on the inner surface of the watch cover (41) at the edge of the observation protective glass plate (42). A sealing groove is provided on the side of the watch case (1) near the watch cover (41), and the sealing groove is engaged with the sealing strip (44).

5. A novel high-purity pressure gauge according to claim 4, characterized in that: The protective unit (4) also includes a luminous layer (45), and the zeroing needle (38) and the scale on the dial (37) are provided with the luminous layer (45).

6. A novel high-purity pressure gauge according to claim 4, characterized in that: The protective unit (4) also includes a protective film (43), which is provided on the outer surface of the observation protective glass plate (42).

7. A novel high-purity pressure gauge according to claim 1, wherein the zeroing component (5) comprises a connecting shaft (51), a connecting gear (52), a zeroing shaft (53), a zeroing gear (54), and an adjusting knob (55), a power gear is provided on the movement shaft in the movement (36), the dial (37) is fixedly connected to the connecting shaft (51) on the side near the power gear via a rotating seat, a connecting gear (52) is fixedly sleeved on the connecting shaft (51), a circular hole is provided on the dial (37), the circular hole is rotatably connected to the zeroing shaft (53) via a bearing, the zeroing shaft (53) is fixedly connected to the zeroing gear (54), an adjusting knob (55) is provided at the front end of the zeroing shaft (53), and the connecting gear (52) is meshed with the zeroing gear (54) and the power gear respectively.

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