Gas filter with pressure sensor

Abstract

The utility model relates to the technical field of gas filtration, in particular to a gas filter with a pressure sensor. The dust-proof filter comprises a filter body, two air pipes are communicated in the filter body, a pressure gauge is installed on the arc surface of the filter body, an exhaust port is communicated with the lower surface of the filter body, a dust-proof device is arranged on the arc surface of the filter body, the dust-proof device comprises two fixing blocks, and the fixing blocks are arranged on the arc surface of the filter body. The two fixing blocks are fixedly connected with the arc surface of the filter body, sliding rods are slidably connected into the fixing blocks, one end of each sliding rod is fixedly connected with a dustproof plate, fixing rods are fixedly connected to the upper surfaces of the fixing blocks, and an operation plate is slidably connected to the arc surface of each fixing rod. The problems that when the filter body is idle for a long time, a large amount of dust enters the gas pipe, the dust is accumulated in the gas pipe and pollutes the gas pipe, and fuel gas entering or exhausted from the gas pipe when the filter body is used is polluted are solved.

Description

Technical Field

[0001] This utility model relates to the field of gas filtration technology, and in particular to a gas filter with a pressure sensor. Background Technology

[0002] Gas filters are widely used in gas-consuming industries such as metallurgy, chemical engineering, petroleum, papermaking, pharmaceuticals, food processing, mining, power generation, urban construction, and household use. Gas filters are an indispensable device in pipelines transporting media, typically installed at the inlet of pressure reducing valves, relief valves, positioning valves, or other equipment. They are used to remove impurities from the media, protecting valves and equipment and reducing maintenance costs. With technological advancements, existing gas filters can often sense the pressure inside the filter using a pressure gauge.

[0003] Chinese patent application CN03221904.0 discloses a gas filter. The key technical points of the invention are: In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gas filter with simple structure, convenient assembly, good filtration effect and long service life.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when the filter body is idle for a long time, a large amount of dust enters the gas pipe, causing the dust to accumulate inside the gas pipe and contaminate the gas pipe, thereby causing the gas entering or exiting the filter body through the gas pipe to be contaminated when the filter body is in use; therefore, a gas filter with a pressure sensor is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where dust accumulates inside the gas pipe, contaminating the gas pipe and causing the gas entering or exiting the filter body during use to be contaminated. Therefore, this invention proposes a gas filter with a pressure sensor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas filter with a pressure sensor, comprising a filter body, two gas pipes connected within the filter body, a pressure device mounted on the arc surface of the filter body, an exhaust port connected to the lower surface of the filter body, a dustproof device provided on the arc surface of the filter body, the dustproof device comprising two fixing blocks, both of which are fixedly connected to the arc surface of the filter body, a sliding rod slidably connected within the fixing blocks, a dustproof plate fixedly connected to one end of the sliding rod, a fixing rod fixedly connected to the upper surface of the fixing blocks, an operating plate slidably connected to the arc surface of the fixing rod, an insertion rod fixedly connected to one side of the operating plate, an insertion hole opened on the arc surface of the sliding rod, and several flange holes opened on one side of the gas pipes.

[0007] The effect achieved by the above-mentioned components is as follows: by setting up a dustproof device, the gas pipe is protected from dust, which prevents a large amount of dust from entering the gas pipe when the filter body is idle for a long time, causing dust to accumulate inside the gas pipe and contaminate the gas pipe. This would result in the gas entering or exiting the filter body through the gas pipe being contaminated during use, thus improving the protective performance of the device.

[0008] Preferably, a limiting plate is fixedly connected to the end of the fixing rod away from the fixing block, and the size of the insertion rod is adapted to the size of the sliding rod insertion hole.

[0009] The effect achieved by the above components is that the limiting plate restricts the maximum sliding distance of the operating plate on the arc surface of the fixed rod, thus preventing the operating plate from detaching from the arc surface of the fixed rod due to excessive pulling force when the operator pulls the operating plate.

[0010] Preferably, a first spring is fitted onto the arc surface of the fixing rod, and the two ends of the first spring are fixedly connected to the fixing block and the operating plate, respectively.

[0011] The effect achieved by the above components is that the first spring improves the stability of the insertion rod in limiting the sliding rod, and at the same time achieves the stability when limiting the dustproof plate.

[0012] Preferably, a sealing gasket is fixedly connected to the surface of the dustproof plate, the sealing gasket is slidably connected to the surface of the air pipe, and a plurality of rubber plugs are fixedly connected to the surface of the dustproof plate, the arc surface of the rubber plugs being slidably connected to the flange hole of the air pipe.

[0013] The effects achieved by the above components are as follows: the sealing gasket increases the sealing performance of the gap between the air pipe and the dustproof plate, and the rubber plug prevents dust from entering the air pipe flange hole and affecting the normal connection between the air pipe and the equipment.

[0014] Preferably, the arc surface of the filter body is provided with a support device, the support device includes a support plate, the support plate is slidably connected to the arc surface of the filter body, the two sides of the support plate are fixedly connected to support frames, two drive rods are threaded into the support frames, and one end of the drive rod is rotatably connected to a clamping block.

[0015] The effect achieved by the above-mentioned components is as follows: by setting up the support device, the filter body is supported, which avoids the situation where the filter body is not properly supported after installation, causing the weight of the filter body to be concentrated at the exhaust port or the connection between the air pipe and the equipment, thus causing the exhaust port to break and affecting the use, thereby improving the practicality of the device.

[0016] Preferably, an anti-slip pad is fixedly connected to the side of the clamping block away from the drive rod, and the anti-slip pad abuts against the arc surface of the filter body.

[0017] The effect achieved by the above components is that the anti-slip pads achieve an anti-slip effect, preventing the filter body from being hit by excessive force, which could cause the filter body to fall over.

[0018] Preferably, a positioning rod is fixedly connected to the side of the clamping block near the drive rod, and the arc surface of the positioning rod is slidably connected to the support frame.

[0019] The effect achieved by the above components is that the positioning rod restricts the clamping block from rotating with the drive rod, so as to achieve precise guidance of the clamping block.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] 1. In this utility model, by setting a dustproof device, the effect of dustproofing the air pipe is achieved, which avoids the large amount of dust entering the air pipe when the filter body is idle for a long time, causing the dust to accumulate inside the air pipe and contaminate the air pipe. This would result in the gas entering or exiting the filter body through the air pipe being contaminated when the filter body is in use, thus improving the protective performance of the device.

[0022] 2. In this utility model, by setting a support device, the filter body is supported, which avoids the situation where the filter body is not properly supported after installation, causing the weight of the filter body to be concentrated at the exhaust port or the connection between the air pipe and the equipment, thus causing the exhaust port to break and affecting the use, thereby improving the practicality of the device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the dustproof device in this utility model;

[0025] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0026] Figure 4 This is a partial structural schematic diagram of the dustproof device in this utility model;

[0027] Figure 5 This is a schematic diagram of the support device in this utility model.

[0028] Legend: 1. Filter body; 2. Air pipe; 3. Pressure device; 4. Exhaust port; 5. Dustproof device; 6. Support device; 501. Fixing block; 502. Sliding rod; 503. Dustproof plate; 504. Fixing rod; 505. Operation panel; 506. Insert rod; 507. Limiting plate; 508. First spring; 509. Sealing gasket; 510. Rubber plug; 61. Support plate; 62. Support frame; 63. Drive rod; 64. Clamping block; 65. Anti-slip pad; 66. Positioning rod. Detailed Implementation

[0029] Reference Figure 1 As shown, this utility model provides a technical solution: a gas filter with a pressure sensor, including a filter body 1, two gas pipes 2 connected inside the filter body 1, a pressure device 3 installed on the arc surface of the filter body 1, an exhaust port 4 connected to the lower surface of the filter body 1, and a dustproof device 5 provided on the arc surface of the filter body 1. By setting the dustproof device 5, the gas pipes 2 are protected from dust, preventing a large amount of dust from entering the gas pipes 2 when the filter body 1 is idle for a long time, causing dust to accumulate inside the gas pipes 2 and contaminating them. This would result in the gas entering or exiting the filter body 1 through the gas pipes 2 being contaminated, thus improving the protective performance of the device. A support device 6 is provided on the arc surface of the filter body 1, which provides support for the filter body 1. This prevents the filter body 1 from being unsupported after installation, causing the weight of the filter body 1 to be concentrated at the exhaust port 4 or the connection between the gas pipes 2 and the device, thus preventing the exhaust port 4 from breaking and affecting its use, thus improving the practicality of the device.

[0030] The specific setup and function of its dustproof device 5 and support device 6 will be explained below.

[0031] Reference Figure 2 , Figure 3 and Figure 4As shown in this embodiment: the dustproof device 5 includes two fixing blocks 501, both of which are fixedly connected to the arc surface of the filter body 1. A sliding rod 502 is slidably connected inside the fixing block 501. A dustproof plate 503 is fixedly connected to one end of the sliding rod 502. A fixing rod 504 is fixedly connected to the upper surface of the fixing block 501. An operating plate 505 is slidably connected to the arc surface of the fixing rod 504. An insertion rod 506 is fixedly connected to one side of the operating plate 505. An insertion hole is opened on the arc surface of the sliding rod 502. One side of the air pipe 2 The device has several flange holes. A limiting plate 507 is fixedly connected to the end of the fixing rod 504 away from the fixing block 501. The size of the insertion rod 506 matches the size of the insertion hole of the sliding rod 502. When the operator pulls the operating plate 505, the operating plate 505 slides on the arc surface of the fixing rod 504. At this time, the limiting plate 507 effectively limits the maximum sliding distance of the operating plate 505 on the arc surface of the fixing rod 504, preventing the operating plate 505 from sliding off the fixing rod 504 due to excessive pulling force. When the arc surface of the fixed rod 504 detaches, a first spring 508 is fitted onto the arc surface of the fixed rod 504. The two ends of the first spring 508 are fixedly connected to the fixed block 501 and the operating plate 505, respectively. When the operator releases the operating plate 505, the rebound force of the first spring 508 causes the operating plate 505 to slide on the arc surface of the fixed rod 504. Simultaneously, the operating plate 505 drives the insertion rod 506 to move until the insertion rod 506 is inserted into the insertion hole of the sliding rod 502. At this point, the first spring 508 raises the insertion rod 506 to limit the sliding rod 502. The stability of the dustproof plate 503 is achieved, and the stability of the dustproof plate 503 is also achieved when it is limited. A sealing gasket 509 is fixedly connected to the surface of the dustproof plate 503. The sealing gasket 509 is slidably connected to the surface of the air pipe 2. Several rubber plugs 510 are fixedly connected to the surface of the dustproof plate 503. The arc surface of the rubber plug 510 is slidably connected to the flange hole of the air pipe 2. At this time, the sealing gasket 509 achieves the effect of increasing the sealing of the gap between the air pipe 2 and the dustproof plate 503. The rubber plugs 510 achieve the effect of preventing dust from entering the flange hole of the air pipe 2 and affecting the normal connection between the air pipe 2 and the equipment.

[0032] Reference Figure 5As shown, specifically, the support device 6 includes a support plate 61, which is slidably connected to the arc surface of the filter body 1. Support frames 62 are fixedly connected to both sides of the support plate 61. Two drive rods 63 are threaded into the support frames 62. A clamping block 64 is rotatably connected to one end of each drive rod 63. An anti-slip pad 65 is fixedly connected to the side of the clamping block 64 away from the drive rod 63. The anti-slip pad 65 abuts against the arc surface of the filter body 1, achieving an anti-slip effect and preventing the filter body 1 from being subjected to excessive force during collisions. This causes the filter body 1 to fall over. A positioning rod 66 is fixedly connected to the side of the clamping block 64 near the drive rod 63. The arc surface of the positioning rod 66 is slidably connected to the support frame 62. When the operator rotates the drive rod 63, the drive rod 63 moves in the threaded motion of the support frame 62. At the same time, the drive rod 63 drives the clamping block 64 to move. The clamping block 64 drives the positioning rod 66 to slide in the support frame 62. At this time, the positioning rod 66 achieves the effect of restricting the clamping block 64 from rotating with the drive rod 63, so as to achieve precise guidance of the clamping block 64.

[0033] Working principle: When the operator needs to dustproof the air pipe 2 on the idle filter body 1, they pull the operating plate 505. The operating plate 505 slides on the arc surface of the fixed rod 504, stretching the first spring 508. At the same time, the operating plate 505 drives the insertion rod 506 to move until the insertion rod 506 moves upward to a certain height and no longer obstructs the sliding rod 502 from inserting into the fixed block 501. At this time, the dustproof plate 503 is pressed, and the dustproof plate 503 drives the sliding rod 502 to pass through the flange hole at the top of the air pipe 2. At the same time, the dustproof plate 503 drives the rubber plug 510 to insert into the flange hole of the remaining air pipe 2. Inside, when the operating plate 505 is released, the rebound force of the first spring 508 causes the operating plate 505 to slide on the arc surface of the fixed rod 504. At the same time, the operating plate 505 drives the insertion rod 506 to move until the insertion rod 506 is inserted into the insertion hole of the sliding rod 502. At this time, the dustproof effect of the air pipe 2 is achieved, which avoids the filter body 1 from being idle for a long time, causing a large amount of dust to enter the air pipe 2, resulting in the accumulation of dust in the air pipe 2 and contamination of the air pipe 2. This would cause the gas entering or exiting the filter body 1 through the air pipe 2 to be contaminated during use, thus improving the protection of the device.

[0034] When the staff needs to support the filter body 1, the filter body 1 is placed on the support plate 61. At this time, the support frame 62 placed on the ground supports the support plate 61, and the support plate 61 supports the filter body 1. Then, the drive rod 63 is rotated, and the drive rod 63 moves threadedly within the support frame 62. At the same time, the drive rod 63 drives the clamping block 64 to move. The clamping block 64 drives the positioning rod 66 to slide within the support frame 62. Simultaneously, the clamping block 64 drives the anti-slip pad 65 to move until the anti-slip pad 65 abuts and clamps against the arc surface of the filter body 1. At this time, the filter body 1 is supported. This avoids the situation where the filter body 1 is not properly supported after installation, which would cause the weight of the filter body 1 to be concentrated at the exhaust port 4 or the connection between the air pipe 2 and the equipment, thus causing the exhaust port 4 to break and affecting the use. This improves the practicality of the device.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A gas filter with a pressure sensor, comprising a filter body (1), characterized in that: The filter body (1) is connected to two air pipes (2). A pressure device (3) is installed on the arc surface of the filter body (1). An exhaust port (4) is connected to the lower surface of the filter body (1). A dustproof device (5) is provided on the arc surface of the filter body (1). The dustproof device (5) includes two fixing blocks (501). Both fixing blocks (501) are fixedly connected to the arc surface of the filter body (1). The fixing blocks (501) slide within the arc surface. A sliding rod (502) is connected, and a dustproof plate (503) is fixedly connected to one end of the sliding rod (502). A fixing rod (504) is fixedly connected to the upper surface of the fixing block (501). An operating plate (505) is slidably connected to the arc surface of the fixing rod (504). An insertion rod (506) is fixedly connected to one side of the operating plate (505). An insertion hole is opened on the arc surface of the sliding rod (502). Several flange holes are opened on one side of the air pipe (2).

2. A gas filter with a pressure sensor according to claim 1, characterized in that: The end of the fixed rod (504) away from the fixed block (501) is fixedly connected to the limiting plate (507), and the size of the insertion rod (506) is adapted to the size of the insertion hole of the sliding rod (502).

3. A gas filter with a pressure sensor according to claim 1, characterized in that: The arc surface of the fixing rod (504) is fitted with a first spring (508), and the two ends of the first spring (508) are fixedly connected to the fixing block (501) and the operating plate (505) respectively.

4. A gas filter with a pressure sensor according to claim 1, characterized in that: A sealing gasket (509) is fixedly connected to the surface of the dustproof plate (503), and the sealing gasket (509) is slidably connected to the surface of the air pipe (2). Several rubber plugs (510) are fixedly connected to the surface of the dustproof plate (503), and the arc surface of the rubber plugs (510) is slidably connected to the flange hole of the air pipe (2).

5. A gas filter with a pressure sensor according to claim 1, characterized in that: The filter body (1) has a support device (6) on its arc surface. The support device (6) includes a support plate (61). The support plate (61) is slidably connected to the arc surface of the filter body (1). Support frames (62) are fixedly connected to both sides of the support plate (61). Two drive rods (63) are threaded into the support frame (62). One end of the drive rod (63) is rotatably connected to a clamping block (64).

6. A gas filter with a pressure sensor according to claim 5, characterized in that: An anti-slip pad (65) is fixedly connected to the side of the clamping block (64) away from the drive rod (63), and the anti-slip pad (65) abuts against the arc surface of the filter body (1).

7. A gas filter with a pressure sensor according to claim 5, characterized in that: A positioning rod (66) is fixedly connected to the side of the clamping block (64) near the drive rod (63), and the arc surface of the positioning rod (66) is slidably connected to the support frame (62).

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