Flammable and explosive gas detection device with cleaning function

Abstract

The utility model relates to the technical field of gas detection devices, in particular to a flammable and explosive gas detection device with a cleaning function, which comprises a detector body, a gas inlet pipe is arranged at the top of the detector body, and a connecting frame is fixedly mounted on the outer wall of the gas inlet pipe. An external pipe is fixedly installed at the end, away from the air inlet pipe, of the connecting frame and located over the air inlet pipe, and symmetrically-distributed fixing holes are formed in one side of the connecting frame. According to the flammable and explosive gas detection device with the cleaning function, through cooperative use of the detector body, the gas inlet pipe, the external pipe, the filter pipe, the brush, the cleaning plate, the connecting frame, the first spring, the pressing plate, the push rod, the fixing hole and the filter screen, the filter pipe is constructed into an assembly unit which is independent and movable relative to the gas inlet pipe and the external pipe. And the cleaning process of the filter screen is simplified. When the filter screen needs to be cleaned, a user only needs to slightly press the pressing plate, and the position of the filter pipe can be easily changed.

Description

Technical Field

[0001] This utility model relates to the technical field of gas detection devices, specifically a flammable and explosive gas detection device with a cleaning function. Background Technology

[0002] Common flammable and explosive gases include hydrogen, carbon monoxide, methane, propane, ethylene, ethane, and acetylene. These gases pose a significant threat to the safety of the production environment, and effectively monitoring and eliminating them is an objective requirement for safe production. Flammable and explosive gases can be monitored using appropriate flammable and explosive gas detectors.

[0003] Traditional gas detectors typically use a filter installed in the intake pipe to remove impurities from the gas being tested. These impurities may come from dust, particulate matter, or other pollutants in the environment, which gradually accumulate on the surface of the filter, clogging its pores. When the filter becomes sufficiently clogged, gas flow is restricted, potentially affecting the detector's sensitivity and accuracy.

[0004] To maintain the gas detector properly, users must perform regular maintenance. This means disassembling the air intake pipe and cleaning the filter, which is time-consuming and laborious, inconvenient for users and seriously affects the efficiency and user experience of the gas detector.

[0005] Therefore, it is necessary to provide a flammable and explosive gas detection device with a cleaning function to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a flammable and explosive gas detection device with a cleaning function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A flammable and explosive gas detection device with a cleaning function, comprising:

[0009] The detector body has an air inlet pipe on its top. A connecting frame is fixedly installed on the outer wall of the air inlet pipe. An outer connecting pipe is fixedly installed at the end of the connecting frame away from the air inlet pipe, directly above the air inlet pipe. A symmetrically distributed fixing hole is opened on one side of the connecting frame. A symmetrically distributed push rod is slidably inserted into the connecting frame through the fixing hole.

[0010] A filter tube is fixedly installed at one end of the push rod, and the filter tube is located between the opposite ends of the outer pipe and the air inlet pipe. A pressing plate is fixedly installed at the other end of the push rod, and a first spring is sleeved on the outer wall of the push rod between the pressing plate and the connecting frame.

[0011] A cleaning plate is fixedly installed on the upper part of the connecting frame away from the pressing plate, a brush is fixedly installed on the bottom of the cleaning plate, and a filter screen is fixedly installed at the top end of the filter tube.

[0012] Preferably, the bottom of the connecting frame has a vertical hole that communicates with the interior of the fixing hole below. A limiting groove is provided on the inner wall of the vertical hole, and a slider is slidably installed on the limiting groove. A second spring is fixedly connected between the bottom of the slider and the bottom of the inner wall of the limiting groove inside the limiting groove. A positioning rod is fixedly installed on one side of the slider and is slidably connected to the vertical hole. A slot is provided on the outer wall of one of the push rods and engages with the positioning rod. A pull rope is fixedly connected to the bottom end of the positioning rod, and a pull ring is fixedly connected to the end of the pull rope away from the positioning rod.

[0013] Preferably, a hook is fixedly connected to the top of the detector body, directly below the pull ring.

[0014] Preferably, an arc-shaped limiting plate is fixedly installed on the outer wall of the outer pipe and the air inlet pipe on the side near the pressing plate.

[0015] Preferably, sealing gaskets are bonded to the opposite ends of the outer pipe and the air intake pipe, and the height of the filter pipe is adapted to the distance between the opposite ends of the air intake pipe and the outer pipe.

[0016] Preferably, a rubber pad is adhered to the side of the pressing plate away from the push rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model utilizes the combined use of the detector body, air inlet pipe, external pipe, filter pipe, brush, cleaning plate, connecting frame, first spring, pressing plate, push rod, fixing hole, and filter screen to construct the filter pipe as an independent and movable assembly unit relative to the air inlet pipe and external pipe. This simplifies the filter cleaning process. When the filter screen needs cleaning, the user simply presses the pressing plate to easily change the position of the filter pipe. Once the filter pipe is in the appropriate position, the brush automatically contacts the filter screen and begins cleaning. The soft yet tough bristles of the brush can penetrate deep into the pores of the filter screen, effectively removing accumulated impurities and restoring the filter screen's permeability. This automatic cleaning process eliminates the need for cumbersome disassembly of the filter pipe, greatly simplifying maintenance.

[0019] 2. This utility model utilizes the combined use of a pull ring, pull rope, second spring, slider, slot, vertical hole, positioning rod, and limiting groove. Under the elastic action of the second spring, the positioning rod can smoothly engage with the slot on the push rod, thus providing precise positioning for the push rod. This locking mechanism significantly enhances the stability of the filter tube between the outer pipe and the air inlet pipe, ensuring the filter tube is firmly positioned during use and preventing displacement caused by vibration or external interference. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partial frontal sectional view of the present invention.

[0022] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0023] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Detector body; 2. Air inlet pipe; 3. External pipe; 4. Filter pipe; 5. Arc-shaped limiting plate; 6. Brush; 7. Cleaning plate; 8. Connecting frame; 9. First spring; 10. Pressing plate; 11. Pull ring; 12. Hook; 13. Push rod; 14. Sealing gasket; 15. Pull rope; 16. Second spring; 17. Slider; 18. Fixing hole; 19. Slot; 20. Vertical hole; 21. Filter screen; 22. Positioning rod; 23. Limiting groove. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0028] 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.

[0029] Please see Figures 1-4 One embodiment provided by this utility model:

[0030] A flammable and explosive gas detection device with a cleaning function, comprising:

[0031] The detector body 1 has an air inlet pipe 2 on its top. A connecting frame 8 is fixedly installed on the outer wall of the air inlet pipe 2. An outer pipe 3 is fixedly installed on the end of the connecting frame 8 away from the air inlet pipe 2 directly above the air inlet pipe 2. A symmetrically distributed fixing hole 18 is opened on one side of the connecting frame 8. A symmetrically distributed push rod 13 is slidably inserted into the connecting frame 8 through the fixing hole 18.

[0032] A filter tube 4 is fixedly installed at one end of the push rod 13, and the filter tube 4 is located between the opposite ends of the outer pipe 3 and the air inlet pipe 2. A pressing plate 10 is fixedly installed at the other end of the push rod 13. A first spring 9 is sleeved on the outer wall of the push rod 13 between the pressing plate 10 and the connecting frame 8.

[0033] A cleaning plate 7 is fixedly installed on the upper part of the connecting frame 8 away from the pressing plate 10. A brush 6 is fixedly installed on the bottom of the cleaning plate 7. A filter screen 21 is fixedly installed at the top end of the filter tube 4.

[0034] The bottom of the connecting frame 8 has a vertical hole 20, which is connected to the interior of the fixing hole 18 below. A limiting groove 23 is provided on the inner wall of the vertical hole 20. A slider 17 is slidably installed on the limiting groove 23. A second spring 16 is fixedly connected between the bottom of the slider 17 and the bottom of the inner wall of the limiting groove 23. A positioning rod 22 is fixedly installed on one side of the slider 17 and is slidably connected to the vertical hole 20. A slot 19 is provided on the outer wall of a push rod 13 and is engaged with the positioning rod 22. A pull rope 15 is fixedly connected to the bottom end of the positioning rod 22, and a pull ring 11 is fixedly connected to the end of the pull rope 15 away from the positioning rod 22.

[0035] In one embodiment, a hook 12 is fixedly connected to the top of the detector body 1 directly below the pull ring 11. By hanging the pull ring 11 on the hook 12, the position of the positioning rod 22 can be actively positioned without manually pulling the pull ring 11 to limit the position of the positioning rod 22.

[0036] In one preferred embodiment, an arc-shaped limiting plate 5 is fixedly installed on the outer wall of the outer pipe 3 and the air inlet pipe 2 on the side near the pressing plate 10, which has the effect of resetting and blocking the filter pipe 4, ensuring the accurate resetting of the filter pipe 4.

[0037] In one embodiment, sealing gaskets 14 are bonded to the opposite ends of the outer pipe 3 and the air intake pipe 2. The height of the filter pipe 4 is adapted to the distance between the opposite ends of the air intake pipe 2 and the outer pipe 3, which improves the fit of the filter pipe 4 in the air intake pipe 2 and the outer pipe 3, and at the same time ensures the sealing of the connection between the filter pipe 4 and the air intake pipe 2 and the outer pipe 3.

[0038] In one preferred embodiment, a rubber pad is adhered to the side of the pressing plate 10 away from the push rod 13, which improves the user's comfort during operation of the pressing plate 10.

[0039] The working principle of this utility model is as follows: All parts not mentioned in this device are the same as or can be implemented using existing technology. During use, when the filter screen 21 needs cleaning, the user directly presses the pressing plate 10. The movement of the pressing plate 10 pushes the push rod 13 to slide on the connecting frame 8. Simultaneously, the movement of the pressing plate 10 compresses the first spring 9. As the push rod 13 pushes, the filter tube 4 located between the outer connecting pipe 3 and the air inlet pipe 2 is directly pushed out, causing the filter screen 21 located at the top end of the filter tube 4 to contact the brush 6. Through the elastic action of the first spring 9, the filter screen 21 can repeatedly contact the brush 6, allowing the brush 6 to quickly remove the impurities and dust clogging the filter screen 21. Once cleaning is complete, releasing the pressure on the pressing plate 10 allows the first spring 9 to reposition the pressing plate 10 and push rod 13, thereby repositioning the filter tube 4 between the air inlet pipe 2 and the outer pipe 3. At this point, the air inlet pipe 2 and the outer pipe 3 are connected through the filter tube 4. This device constructs the filter tube 4 as an independent and movable assembly relative to the air inlet pipe 2 and the outer pipe 3, simplifying the cleaning process for the filter screen 21. When the filter screen 21 needs cleaning, the user only needs to gently press the pressing plate 10 to easily change the position of the filter tube 4. Once the filter tube 4 is in the appropriate position, the brush 6 will automatically contact the filter screen 21 and begin cleaning. The soft yet resilient bristles of brush 6 can penetrate deep into the pores of filter 21, effectively removing accumulated impurities and restoring the permeability of filter 21. This automatic cleaning process eliminates the need for users to perform cumbersome disassembly of filter tube 4, greatly simplifying maintenance procedures.

[0040] During the cleaning of the filter screen 21 on the filter tube 4, the pull ring 11 can be pulled first. The pull ring 11 drives the positioning rod 22 downward through the pull rope 15. The movement of the positioning rod 22 causes the slider 17 to slide on the limiting groove 23 and squeeze the second spring 16. As the positioning rod 22 moves downward, it loses its engagement with the slot 19 on the push rod 13. At this time, the push rod 13 can slide freely laterally on the connecting frame 8. After cleaning the filter screen 21, the filter tube 4 is reset. The limiting of the pull ring 11 is released, allowing the positioning rod 22 to smoothly engage with the slot 19 on the push rod 13 under the elastic action of the second spring 16, thus providing precise positioning for the push rod 13. This locking mechanism significantly enhances the stability of the filter tube 4 between the outer pipe 3 and the air inlet pipe 2, ensuring that the filter tube 4 is firmly positioned during use and preventing displacement caused by vibration or external interference.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flammable and explosive gas detection device with a cleaning function, characterized in that, It includes: The detector body (1) has an air inlet pipe (2) on its top. A connecting frame (8) is fixedly installed on the outer wall of the air inlet pipe (2). An outer pipe (3) is fixedly installed on the end of the connecting frame (8) away from the air inlet pipe (2) directly above the air inlet pipe (2). A symmetrically distributed fixing hole (18) is opened on one side of the connecting frame (8). A symmetrically distributed push rod (13) is slidably inserted into the connecting frame (8) through the fixing hole (18). A filter tube (4) is fixedly installed at one end of the push rod (13), and the filter tube (4) is located between the opposite ends of the outer pipe (3) and the air inlet pipe (2). A pressing plate (10) is fixedly installed at the other end of the push rod (13). A first spring (9) is sleeved on the outer wall of the push rod (13) between the pressing plate (10) and the connecting frame (8). A cleaning plate (7) is fixedly installed on the upper side of the connecting frame (8) away from the pressing plate (10), a brush (6) is fixedly installed on the bottom of the cleaning plate (7), and a filter screen (21) is fixedly installed at the top end of the filter tube (4).

2. The flammable and explosive gas detection device with cleaning function according to claim 1, characterized in that: The bottom of the connecting frame (8) is provided with a vertical hole (20), and the vertical hole (20) is connected to the interior of the lower fixing hole (18). A limiting groove (23) is provided on the inner wall of the vertical hole (20). A slider (17) is slidably installed on the limiting groove (23). A second spring (16) is fixedly connected between the bottom of the slider (17) and the bottom of the inner wall of the limiting groove (23) inside the limiting groove (23). A positioning rod (22) is fixedly installed on one side of the slider (17), and the positioning rod (22) is slidably connected to the vertical hole (20). A slot (19) is provided on the outer wall of one of the push rods (13), and the slot (19) is engaged with the positioning rod (22). A pull rope (15) is fixedly connected to the bottom end of the positioning rod (22), and a pull ring (11) is fixedly connected to the end of the pull rope (15) away from the positioning rod (22).

3. The flammable and explosive gas detection device with cleaning function according to claim 2, characterized in that: The top of the detector body (1) is fixedly connected to a hook (12) directly below the pull ring (11).

4. A flammable and explosive gas detection device with a cleaning function according to claim 1, characterized in that: An arc-shaped limiting plate (5) is fixedly installed on the outer wall of the opposite end of the outer pipe (3) and the air inlet pipe (2) on the side near the pressing plate (10).

5. A flammable and explosive gas detection device with a cleaning function according to claim 1, characterized in that: The outer pipe (3) and the air inlet pipe (2) are both bonded with sealing gaskets (14), and the height of the filter pipe (4) is adapted to the distance between the opposite ends of the air inlet pipe (2) and the outer pipe (3).

6. A flammable and explosive gas detection device with a cleaning function according to claim 1, characterized in that: A rubber pad is attached to the side of the pressing plate (10) away from the push rod (13).

Images