Pressure instrument with built-in dust removal function

Abstract

The invention discloses a pressure instrument with a built-in dust removal function, and relates to the technical field of pressure instruments, the pressure instrument comprises a pressure instrument pedestal, the upper end of the pressure instrument pedestal is provided with a support center pillar, the inner side of the upper end of the pressure instrument pedestal is provided with a filter screen plate capable of filtering dust, the inner side of the support center pillar is provided with a membrane, and the membrane is provided with a dust removal device. A pressure instrument shell is fixedly connected to the upper portion of the supporting middle column, and a spring pipe is arranged on the inner side of the pressure instrument shell. And a front panel is arranged at the front end of the pressure instrument shell. The problems that in some large industrial processing factories, due to long-time operation, dust and other particulate matter in the environment in the factories are increased, along with continuous operation of pressure instruments, the dust and other particulate matter in the environment can enter the pressure instruments, parts are damaged and the like are solved, meanwhile, due to increase of the dust and other particulate matter, a dial of the instruments is blurred, and the working efficiency is improved are solved. And the pressure scales cannot be seen clearly.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure instruments, and in particular to a pressure instrument with a built-in dust removal function. Background Art

[0002] Pressure measuring instruments are industrial automation instruments used to measure gas or liquid pressure, also known as pressure gauges or manometers. Pressure instruments are installed in industry to monitor the operation of working media in pressurized containers or pipelines, so as to properly control the pressurized containers and protect production safety. In some special industrial environments, due to the high amount of dust and particulate matter in the environment, excessive dust accumulates inside the pressure instrument after long-term use, causing equipment damage.

[0003] Compared with existing pressure instruments, the following defects still exist: in some large industrial processing plants, due to long-term operation, the dust and other particulate matter in the factory environment increases. As the pressure instrument continues to operate, the dust and other particulate matter in the environment will enter the pressure instrument, causing damage to parts and components. At the same time, the increase in dust and other particulate matter will make the instrument dial blurred, making it difficult to read the pressure scale. Summary of the Invention

[0004] The purpose of the present invention is to provide a pressure instrument with a built-in dust removal function to solve the following technical problems: In some large industrial processing plants, due to long-term operation, the dust and other particulate matter in the factory environment increases. As the pressure instrument continues to operate, the dust and other particulate matter in the environment will enter the pressure instrument, causing damage to parts and components. At the same time, the increase in dust and other particulate matter will make the instrument dial blurred, making it difficult to read the pressure scale.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A pressure instrument with a built-in dust removal function, comprising: a pressure instrument stand, a supporting center column mounted on the upper end of the pressure instrument stand, a filter plate for filtering dust disposed on the inner side of the upper end of the pressure instrument stand, a diaphragm disposed on the inner side of the supporting center column, a pressure instrument housing fixedly connected to the upper side of the supporting center column, and a spring tube disposed on the inner side of the pressure instrument housing;

[0007] The front end of the pressure instrument housing is provided with a front panel, the rear surface of the front panel is provided with a brush, the rear end of the brush is provided with a support rod fixedly connected to a gear ring, and the upper end of the gear ring is connected to a worm gear.

[0008] As a further solution of the present invention: a filter frame located on the inner side of the upper end of the pressure instrument base is provided on the outer side of the filter screen plate, and the filter screen plates are equidistantly arranged on the upper and lower sides of the inner side of the filter frame for filtering and removing dust in the gas or liquid.

[0009] As a further solution of the present invention: the filter frame passes through the inner side of the pressure instrument base and the supporting center column respectively and is connected to the supporting center column by a threaded manner through the first adjusting bolt.

[0010] As a further solution of the present invention: a connecting rod is provided on the lower side of the right end of the spring tube, the lower end of the connecting rod is connected to a fan-shaped connecting rod, the left end of the fan-shaped connecting rod is provided with a gear plate, and the front end of the gear plate is provided with a pointer passing through the dial.

[0011] As a further solution of the present invention: the spring tube and the fan-shaped connecting rod both constitute a rotating structure on the connecting rod, the left end of the fan-shaped connecting rod is a semicircular gear plate, and the fan-shaped connecting rod and the gear plate are connected in a meshing manner.

[0012] As a further solution of the present invention: the gear plate and the pointer are fixedly connected, and the pointer runs through the middle of the dial, and the front end of the pointer is triangular and is used to point to the scale line set on the front surface of the dial.

[0013] As a further solution of the present invention: the upper end of the worm wheel is meshedly connected with a worm located inside a protective box, and the protective box is used to protect the worm and the worm wheel.

[0014] As a further solution of the present invention: the worm wheel and the gear ring are connected in a meshing manner, and the gear ring is hollow and located on the inner side of the front panel.

[0015] As a further solution of the present invention: the gear ring and the support rod are vertically fixedly connected, and the support rod and the brush are connected by bonding.

[0016] As a further solution of the present invention: the front surface of the brush is fitted with the rear surface of the high-definition glass panel, the high-definition glass panel is wrapped around the inner side of the front panel, and the front panel is connected to the pressure instrument housing by a threaded manner through a third adjusting bolt.

[0017] Beneficial effects of the present invention:

[0018] 1. The filter screen is evenly spaced up and down on the inner side of the filter frame. When impurities in the gas or liquid flow upward, they can be filtered and removed under the action of the filter screen to prevent them from entering the inner side of the pressure instrument housing and causing damage to the components. Rubber sealing rings are provided at the front edge of the back plate and the rear edge of the front panel. When the back plate and the front panel are threadedly connected to the pressure instrument housing, the seal can be adjusted to prevent dust from entering.

[0019] In addition, a brush is attached to the rear surface of the high-definition glass panel wrapped inside the front panel. When the worm rotates to drive the worm wheel to rotate, the worm wheel can drive the gear ring to rotate synchronously under the action of the meshing connection, so that the brush can be used to clean the fog and dust generated on the rear surface of the high-definition glass panel to achieve a clear and bright effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the connection between the pressure instrument base and the supporting center column of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the connection between the supporting center column and the diaphragm of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall exploded structure of the connection between the filter frame and the filter screen plate of the present invention;

[0024] Figure 4 This is a schematic diagram of the overall exploded structure of the connection between the spring tube and the connecting rod of the present invention;

[0025] Figure 5 This is a schematic diagram of the overall exploded structure of the connection between the front panel and the high-definition glass panel of the present invention;

[0026] Figure 6 It is a schematic diagram of the overall exploded structure of the connection between the worm gear and the gear ring of the present invention.

[0027] In the figure: 1. Pressure instrument base; 2. Support center column; 3. Diaphragm; 4. Filter frame; 5. Filter screen; 6. First adjusting bolt; 7. Pressure instrument housing; 8. Spring tube; 801. Connecting rod; 802. Fan-shaped connecting rod; 803. Gear plate; 804. Pointer; 9. Dial; 10. Back panel; 11. Second adjusting bolt; 12. Rubber sealing ring; 13. Front panel; 14. High-definition glass panel; 15. Third adjusting bolt; 16. Protective box; 17. Servo motor; 18. Worm; 19. Worm gear; 20. Gear ring; 21. Support rod; 22. Brush. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] See also Figure 1-6 As shown, the present invention is a pressure instrument with a built-in dust removal function.

[0030] Example 1

[0031] See also Figure 2 、 Figure 3 and Figure 5 The present invention provides a technical solution: a pressure instrument base 1, a supporting center column 2 is installed on the upper end of the pressure instrument base 1, a filter plate 5 for filtering dust is provided on the inner side of the upper end of the pressure instrument base 1, a diaphragm 3 is provided on the inner side of the supporting center column 2, a pressure instrument housing 7 is fixedly connected to the top of the supporting center column 2, and a spring tube 8 is provided on the inner side of the pressure instrument housing 7.

[0032] Furthermore, a filter frame 4 is provided on the outside of the filter screen plate 5 and is located inside the upper end of the pressure instrument stand 1. The filter screen plates 5 are equidistantly arranged on the upper and lower sides of the inner side of the filter frame 4 for filtering and removing dust in the gas or liquid.

[0033] Furthermore, the filter frame 4 passes through the inner sides of the pressure instrument stand 1 and the supporting center column 2 respectively and is connected to the supporting center column 2 through the first adjusting bolt 6 in a threaded manner.

[0034] Specifically, first, the pressure instrument stand 1 is fixedly installed in a specific position by means of building bolts, and then the filter frame 4 is sleeved and installed on the inner side of the upper end of the pressure instrument stand 1. Since the filter screen plates 5 are evenly distributed on the upper and lower sides of the inner side of the filter frame 4, the impurities in the circulating gas or liquid can be filtered and removed to prevent the impurities from flowing upward and entering the supporting column 2. At this time, the pressure instrument housing 7 fixedly connected to the supporting column 2 is placed on the upper end of the filter frame 4, and the first adjusting bolt 6 is used to penetrate the left and right ends of the supporting column 2 and then be threadedly connected to the filter frame 4, so as to facilitate the fastening connection and installation between the pressure instrument stand 1 and the supporting column 2.

[0035] Among them, fixed handles are provided on the upper sides of the left and right ends of the filter frame 4, which makes it convenient to take the filter frame 4 as a whole after removing the first adjusting bolt 6, and then the filter screen plate 5 can be disassembled and replaced to avoid long-term use and poor filtering effect. Finally, the filtered gas or liquid will flow upward and then enter the spring tube 8, so that the pointer 804 will rotate and point to the scale line set on the front surface of the dial 9 to facilitate checking the pressure value.

[0036] Example 2

[0037] See also Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The present invention provides a technical solution: a front panel 13 is provided at the front end of the pressure instrument housing 7, a brush 22 is provided on the rear surface of the front panel 13, a support rod 21 fixedly connected to a gear ring 20 is provided at the rear end of the brush 22, and a worm gear 19 is connected to the upper end of the gear ring 20.

[0038] Furthermore, the upper end of the worm wheel 19 is meshedly connected with the worm 18 located inside the protective box 16 , and the protective box 16 is used to protect the worm 18 and the worm wheel 19 .

[0039] Furthermore, the worm wheel 19 and the gear ring 20 are connected in a meshing manner. The gear ring 20 is hollow and located on the inner side of the front panel 13 .

[0040] Furthermore, the gear ring 20 and the support rod 21 are vertically fixedly connected, and the support rod 21 and the brush 22 are connected by bonding.

[0041] Furthermore, the front surface of the brush 22 is fitted to the rear surface of the high-definition glass panel 14 , and the high-definition glass panel 14 is wrapped around the inner side of the front panel 13 . The front panel 13 is connected to the pressure instrument housing 7 via a third adjustment bolt 15 in a threaded manner.

[0042] Specifically, in combination with the first embodiment, the front panel 13 is wrapped with the high-definition glass panel 14 and installed at the front end of the pressure instrument housing 7, and the third adjusting bolt 15 is penetrated through the outer edge of the front panel 13 and is threadedly connected to the pressure instrument housing 7. An annular rubber sealing ring 12 is provided at the rear end edge of the front panel 13 to ensure the sealing of the connection between the front panel 13 and the pressure instrument housing 7 to prevent dust from entering. During subsequent use, due to factors such as temperature difference, fog and other dust will be generated on the rear end surface of the high-definition glass panel 14. At this time, the servo motor 17 installed inside the protective box 16 is turned on. When the servo motor 17 is rotated, the worm 18 can be driven to rotate synchronously. The worm gear 19 meshing with the worm 18 rotates in conjunction with the worm gear 18. Since the worm gear 19 is meshingly connected to the gear ring 20, the gear ring 20 meshing with the worm gear 19 can perform a fitting circular rotation within the front panel 13. A support rod 21 is fixedly installed on the upper inner side of the gear ring 20. At this time, when the gear ring 20 rotates in a circle, the support rod 21 can rotate synchronously, so that the brush 22 bonded to the support rod 21 can rotate in contact with the rear end surface of the high-definition glass panel 14, so as to facilitate the scraping of fog or dust on the rear end surface of the high-definition glass panel 14, so as to avoid affecting the line of sight, resulting in insufficient clarity, and causing problems in checking the subsequent pressure values.

[0043] Example 3

[0044] See also Figure 2 、 Figure 4 and Figure 5 In the present invention, a technical solution is provided: a connecting rod 801 is provided on the lower side of the right end of the spring tube 8, the lower end of the connecting rod 801 is connected to a fan-shaped connecting rod 802, the left end of the fan-shaped connecting rod 802 is provided with a gear plate 803, and the front end of the gear plate 803 is provided with a pointer 804 that passes through the dial 9.

[0045] Furthermore, the spring tube 8 and the fan-shaped linkage rod 802 both form a rotating structure on the connecting rod 801. The left end of the fan-shaped linkage rod 802 is a semicircular gear plate, and the fan-shaped linkage rod 802 and the gear plate 803 are connected in a meshing manner.

[0046] Furthermore, the gear plate 803 and the pointer 804 are fixedly connected, and the pointer 804 passes through the middle of the dial 9 , and the front end of the pointer 804 is triangular and is used to point to the scale line set on the front surface of the dial 9 .

[0047] Specifically, in combination with Example 1 and Example 2, after the gas or liquid is filtered through the filter screen plate 5 installed on the inner side of the filter frame 4, the air pressure will be introduced upward through the diaphragm 3. At this time, the measured medium will enter the spring tube 8. Since the pressure instrument stand 1, the supporting column 2 and the spring tube 8 form a connecting structure, the spring tube 8 will be deformed under the pressure of the measured medium. The spring tube 8 and the fan-shaped connecting rod 802 both form a rotating structure on the connecting rod 801. When the spring tube 8 is deformed due to the pressure, it will drive the connecting rod 801 to rotate. Since the middle part of the sector-shaped linkage rod 802 forms a rotating structure in the pressure instrument housing 7, the connecting rod 801 will pull the sector-shaped linkage rod 802 to displace and rotate, and the sector-shaped linkage rod 802 and the gear plate 803 are meshed and connected, which will cause the gear plate 803 to rotate in a circle with the center point as the center, so that the pointer 804 passes through the middle part of the dial 9 and does not rotate with the front end of the dial 9, and points to the scale line set on the front surface of the dial 9, thereby performing scale pointing, so as to achieve the effect of numerical display, so as to view the pressure value;

[0048] Among them, the rear end of the pressure instrument housing 7 is threadedly connected to the back plate 10 through the second adjusting bolt 11, and a ring-mounted rubber sealing ring 12 is provided at the front end edge of the back plate 10, which can ensure a tight connection and installation between the back plate 10 and the pressure instrument housing 7 and achieve a sealing effect. This arrangement also facilitates timely disassembly and replacement of parts in the pressure instrument housing 7 when they are damaged in the future, so as to avoid affecting subsequent use.

[0049] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A pressure meter with built-in dust removal function, characterized in that: The invention comprises a pressure instrument stand (1), wherein a supporting center column (2) is installed at the upper end of the pressure instrument stand (1), a filter screen (5) capable of filtering dust is provided on the inner side of the upper end of the pressure instrument stand (1), a diaphragm (3) is provided on the inner side of the supporting center column (2), a pressure instrument housing (7) is fixedly connected to the upper side of the supporting center column (2), and a spring tube (8) is provided on the inner side of the pressure instrument housing (7); The front end of the pressure instrument housing (7) is provided with a front panel (13), the rear surface of the front panel (13) is provided with a brush (22), the rear end of the brush (22) is provided with a support rod (21) fixedly connected to a gear ring (20), and the upper end of the gear ring (20) is connected to a worm gear (19).

2. A pressure meter with built-in dust removal function according to claim 1, characterized in that: A filter frame (4) located inside the upper end of the pressure instrument stand (1) is provided on the outside of the filter screen plate (5). The filter screen plate (5) is equidistantly arranged above and below the inner side of the filter frame (4) for filtering and removing dust in gas or liquid.

3. A pressure meter with built-in dust removal function according to claim 2, characterized in that: The filter frame (4) respectively passes through the inner sides of the pressure instrument stand (1) and the supporting center column (2) and is connected to the supporting center column (2) via a first adjusting bolt (6) in a threaded manner.

4. The pressure meter with built-in dust removal function according to claim 1 is characterized in that: A connecting rod (801) is provided at the lower side of the right end of the spring tube (8), the lower end of the connecting rod (801) is connected to a fan-shaped connecting rod (802), the left end of the fan-shaped connecting rod (802) is provided with a gear plate (803), and the front end of the gear plate (803) is provided with a pointer (804) that passes through the scale plate (9).

5. The pressure meter with built-in dust removal function according to claim 4 is characterized in that: The spring tube (8) and the fan-shaped connecting rod (802) both form a rotating structure on the connecting rod (801). The left end of the fan-shaped connecting rod (802) is a semicircular gear plate. The fan-shaped connecting rod (802) and the gear plate (803) are connected in a meshing manner.

6. The pressure meter with built-in dust removal function according to claim 4 is characterized in that: The gear plate (803) and the pointer (804) are fixedly connected, and the pointer (804) passes through the middle of the scale plate (9). The front end of the pointer (804) is triangular and is used to point to the scale line set on the front surface of the scale plate (9).

7. The pressure meter with built-in dust removal function according to claim 1 is characterized in that: The upper end of the worm wheel (19) is meshedly connected with a worm (18) located inside a protection box (16), and the protection box (16) is used to protect the worm (18) and the worm wheel (19).

8. The pressure meter with built-in dust removal function according to claim 1 is characterized in that: The worm wheel (19) and the gear ring (20) are connected in a meshing manner, and the gear ring (20) is hollow and located on the inner side of the front panel (13).

9. The pressure meter with built-in dust removal function according to claim 8, characterized in that: The toothed ring (20) and the support rod (21) are vertically fixedly connected, and the support rod (21) and the brush (22) are connected in an adhesive manner.

10. The pressure meter with built-in dust removal function according to claim 9, characterized in that: The front surface of the brush (22) is fitted to the rear surface of the high-definition glass panel (14), the high-definition glass panel (14) is wrapped around the inner side of the front panel (13), and the front panel (13) is connected to the pressure instrument housing (7) in a threaded manner via a third adjustment bolt (15).

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