Miniaturized portable gas detector

Abstract

The utility model relates to the technical field of gas detectors, and discloses a miniaturized portable gas detector which comprises a gas detector main body, a gas inlet hole is formed in the front surface of the gas detector main body, and a supporting frame is installed on the front surface of the gas detector main body and located outside the gas inlet hole. The exterior of the supporting frame is in threaded connection with a supporting ring, a filter screen is mounted in the supporting ring, and a cleaning mechanism is arranged on the front surface of the filter screen; according to the gas detector, the filter screen is arranged and is used for protecting the gas inlet hole, so that the gas inlet hole is prevented from being blocked by external dust and impurities, the normal use of the gas detector is ensured, a mounting plate in the rotary cleaning mechanism can drive bristles to clean the filter screen, and the dust and the impurities on the surface of the filter screen are cleaned; the filter screen is prevented from being blocked, so that a user does not need to frequently detach the filter screen for cleaning, and the operation pressure of the user is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detectors, in particular to a miniaturized portable gas detector. Background Art

[0002] With the acceleration of industrialization and urbanization, the risk of leakage of various harmful gases, flammable gases and toxic vapors is increasing. These gas leaks not only pollute the environment, but may also cause serious accidents such as fire and explosion, posing a huge threat to personal safety. Therefore, real-time monitoring and early warning of gas concentration have become an important means to ensure production safety, environmental protection and personnel health. When the existing portable gas detector is in use, the gas sensor is located in the hole of the operation panel, and there is a sounder in the long hole. During use, external dust and impurities can easily enter the holes and the long holes on the operation panel. Over time, it is easy to cause blockage in the holes where the gas sensors are installed and in the long holes where the sounders are installed, reducing the amount of external gas received by the gas sensor, affecting the accuracy of the gas sensor in use, and after the long holes are blocked, the sound intensity emitted by the sounder will be reduced, affecting the alarm performance of the sounder, reducing the gas detection accuracy and performance of the gas detector.

[0003] A Chinese patent discloses a portable gas detector (authorization announcement number CN219201523U). This patented technology, through a designed filtering mechanism, prevents external dust and impurities from entering the holes and elongated holes during use, thus avoiding blockage in the holes and elongated holes. This does not affect the effectiveness of the gas sensor and sounder, thereby improving the performance of the gas detector.

[0004] However, it has certain disadvantages: as time goes by, more and more dust and impurities will accumulate on the surface of the dust screen. If not cleaned in time, these accumulations will gradually clog the dust screen, affecting the normal circulation of gas, and thus affecting the accuracy and sensitivity of gas detection; in order to keep the dust screen unobstructed, the user needs to regularly disassemble the dust screen for cleaning, which not only increases the user's operating burden, but may also cause damage or loosening of the dust screen or related components due to frequent disassembly and installation, affecting the overall performance and life of the equipment. Utility Model Content

[0005] The purpose of the present utility model is to provide a miniaturized portable gas detector to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A miniaturized portable gas detector comprises a gas detector body, wherein an air inlet is provided on the front surface of the gas detector body, and an operation screen is embedded and connected to the front surface of the gas detector body below the air inlet; a support frame is installed on the front surface of the gas detector body outside the air inlet, a support ring is connected to the outside of the support frame through threads, a filter is installed inside the support ring, a cleaning mechanism is provided on the front surface of the filter, the cleaning mechanism comprises a connecting mechanism and a mounting plate, a cleaning plate is embedded and connected to the rear surface of the mounting plate, mounting bolts are movably penetrated and connected at both upper and lower ends of the rear surface of the cleaning plate, and a plurality of bristles are installed on the rear surface of the cleaning plate between the two mounting bolts.

[0008] As a further solution of the present invention: a hanging ring is installed on the upper surface of the gas detector body.

[0009] As a further solution of the present invention: the connecting mechanism includes a connecting column, a block is installed at the front end of the connecting column, and a threaded rod is installed at the rear end of the connecting column, the outer part of the threaded rod is movably connected to a retaining ring, and the rear end of the threaded rod is threadedly connected to a connecting seat.

[0010] As a further solution of the present invention: the front end of the mounting bolt is threadedly connected to the inside of the mounting plate, and the rear end of the bristles is attached to the filter screen.

[0011] As a further solution of the present invention: the upper end of the mounting plate is movably sleeved on the outside of the connecting column, the front surface of the retaining ring is fitted to the connecting column, and the rear surface of the retaining ring is fitted to the connecting seat, and the rear end of the connecting seat is installed on the front surface of the filter screen.

[0012] As a further solution of the present invention: the diameter of the stop block is the same as the outer diameter of the stop ring, and the diameter of the threaded rod is the same as the inner diameter of the stop ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a filter screen, which protects the air inlet, avoids the blockage of the air inlet caused by external dust and impurities, and ensures the normal use of the gas detector.

[0015] 2. The utility model is provided with a cleaning mechanism. Rotating the mounting plate in the cleaning mechanism can drive the bristles to clean the filter, remove dust and impurities on its surface, avoid clogging of the filter, and make the user do not need to frequently disassemble the filter for cleaning, thereby reducing the user's operating pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a miniaturized portable gas detector;

[0017] Figure 2 The figure is an exploded view of a miniaturized portable gas detector;

[0018] Figure 3 This is a schematic diagram of the structure of a cleaning mechanism in a miniaturized portable gas detector;

[0019] Figure 4 An exploded view of a cleaning mechanism in a miniaturized portable gas detector;

[0020] Figure 5 A rear view of the mounting plate in a miniaturized portable gas detector.

[0021] In the figure: 1. Gas detector body; 2. Air inlet; 3. Operation screen; 4. Support frame; 5. Support ring; 6. Filter; 7. Hanging ring; 8. Cleaning mechanism; 9. Connecting mechanism; 10. Connecting column; 11. Block; 12. Threaded rod; 13. Blocking ring; 14. Connecting seat; 15. Mounting plate; 16. Cleaning plate; 17. Mounting bolt; 18. Brush. DETAILED DESCRIPTION

[0022] See also Figure 1 and Figure 2 In an embodiment of the present utility model, a miniaturized portable gas detector includes a gas detector body 1, an air inlet 2 is formed on the front surface of the gas detector body 1, and an operation screen 3 is embedded and connected to the front surface of the gas detector body 1 below the air inlet 2, a support frame 4 is installed on the front surface of the gas detector body 1 outside the air inlet 2, a support ring 5 is threadedly connected to the outside of the support frame 4, and a filter 6 is installed inside the support ring 5;

[0023] The gas detector body 1 can be picked up and operated by hand, and is small in size and easy to carry;

[0024] The gas detector body 1 is equipped with a gas sensor that can sense specific components in the gas entering through the air inlet 2. When the components in the gas react with the sensor, the sensor generates corresponding electrical signals. These electrical signals are amplified, filtered, and converted by the signal processing circuit, and then converted into recognizable digital or analog signals, which are finally displayed on the operation screen 3.

[0025] The gas inlet 2 is the passage for gas to enter the gas detector body 1. It allows the gas sample to be detected to enter the device and react with the sensor, thereby realizing gas detection;

[0026] The operation screen 3 is the interface for users to interact with the gas detector. It has a touch function and is used to display detection results, set detection parameters, control equipment operation, etc. Through the operation screen 3, users can intuitively understand the gas concentration in the current environment and perform corresponding operations as needed;

[0027] The filter 6 prevents dust and impurities in the external air from clogging the air inlet 2 .

[0028] exist Figure 1 Middle: A hanging ring 7 is installed on the upper surface of the gas detector body 1; the hanging ring 7 can hang the gas detector body 1 at a designated position.

[0029] exist Figures 2 to 5 Middle: The front surface of the filter 6 is provided with a cleaning mechanism 8, which includes a connecting mechanism 9 and a mounting plate 15. The connecting mechanism 9 includes a connecting column 10, a stopper 11 is installed at the front end of the connecting column 10, and a threaded rod 12 is installed at the rear end of the connecting column 10. The outer part of the threaded rod 12 is movably connected to a retaining ring 13. The diameter of the stopper 11 is the same as the outer diameter of the retaining ring 13, and the diameter of the threaded rod 12 is the same as the inner diameter of the retaining ring 13. The rear end of the threaded rod 12 is threadedly connected to a connecting seat 14, and the front surface of the retaining ring 13 is attached to the connecting column 10. , and the rear surface of the retaining ring 13 is fitted to the connecting seat 14, the rear end of the connecting seat 14 is installed on the front surface of the filter 6, the upper end of the mounting plate 15 is movably sleeved on the outside of the connecting column 10, and the rear surface of the mounting plate 15 is embedded with a cleaning plate 16, and the upper and lower ends of the rear surface of the cleaning plate 16 are movably penetrated and connected with mounting bolts 17, the front end of the mounting bolt 17 is threadedly connected to the inside of the mounting plate 15, and the rear surface of the cleaning plate 16 is located between the two mounting bolts 17. A plurality of bristles 18 are installed, and the rear end of the bristles 18 is fitted to the filter 6;

[0030] The mounting plate 15 can rotate outside the connecting column 10, thereby driving the bristles 18 to clean the filter 6, thereby avoiding clogging of the filter 6 and eliminating the need for frequent disassembly and cleaning.

[0031] The bristles 18 exert a certain pressure on the filter screen 6, and the cleaning effect is better.

[0032] The working principle of the present utility model is: when in use, the user adjusts the parameters through the operation screen 3, and then performs detection, the gas enters the interior of the gas detector body 1 through the air inlet 2, and the detection data is displayed on the operation screen 3; the filter 6 protects the air inlet 2 to avoid clogging of the air inlet 2 by dust and impurities; the user can rotate the mounting plate 15 to drive the bristles 18 to clean the filter 6 to avoid clogging of the filter 6; when the bristles 18 need to be replaced, the user can rotate the block 11 to remove it, thereby removing the mounting plate 15, and then loosen the mounting bolt 17 to remove the cleaning plate 16 for replacement.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A miniaturized portable gas detector, comprising a gas detector body (1), wherein an air inlet (2) is provided on the front surface of the gas detector body (1), and an operation screen (3) is embedded and connected to the front surface of the gas detector body (1) below the air inlet (2), and a support frame (4) is installed on the front surface of the gas detector body (1) outside the air inlet (2), a support ring (5) is connected to the outside of the support frame (4) by a thread, and a filter (6) is installed inside the support ring (5), characterized in that: The front surface of the filter (6) is provided with a cleaning mechanism (8), the cleaning mechanism (8) comprising a connecting mechanism (9) and a mounting plate (15), the rear surface of the mounting plate (15) being embedded with a cleaning plate (16), the upper and lower ends of the rear surface of the cleaning plate (16) being movably penetrated by mounting bolts (17), and the rear surface of the cleaning plate (16) being located between the two mounting bolts (17) and having a plurality of bristles (18) mounted thereon.

2. A miniaturized portable gas detector according to claim 1, characterized in that: A hanging ring (7) is installed on the upper surface of the gas detector body (1).

3. A miniaturized portable gas detector according to claim 1, characterized in that: The connecting mechanism (9) comprises a connecting column (10), a stopper (11) is installed at the front end of the connecting column (10), and a threaded rod (12) is installed at the rear end of the connecting column (10), a retaining ring (13) is movably connected to the outside of the threaded rod (12), and a connecting seat (14) is threadedly connected to the rear end of the threaded rod (12).

4. A miniaturized portable gas detector according to claim 1, characterized in that: The front end of the mounting bolt (17) is threadedly connected to the inside of the mounting plate (15), and the rear end of the bristles (18) is attached to the filter screen (6).

5. The miniaturized portable gas detector according to claim 3, characterized in that: The upper end of the mounting plate (15) is movably sleeved on the outside of the connecting column (10), the front surface of the retaining ring (13) is in contact with the connecting column (10), and the rear surface of the retaining ring (13) is in contact with the connecting seat (14), and the rear end of the connecting seat (14) is mounted on the front surface of the filter screen (6).

6. A miniaturized portable gas detector according to claim 3, characterized in that: The diameter of the stop block (11) is the same as the outer diameter of the stop ring (13), and the diameter of the threaded rod (12) is the same as the inner diameter of the stop ring (13).

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