Gas detector equipment

Abstract

The utility model relates to the field of gas detection, and provides gas detector equipment which comprises a pump body unit for extracting and discharging sample gas, a gas chamber unit for providing a gas flow path and a gas chamber, a detection unit for detecting the concentration content of the gas and a display unit for displaying various parameters of the gas, the pump body unit and the detection unit are installed on the air chamber unit, and the detection unit and the display unit are both electrically connected with the signal processing mainboard. The pump body unit and the detection unit are integrally and compactly mounted on the air chamber main body, so that the size of the equipment is reduced, various parts of the product are prepared from plastic, the overall weight is effectively reduced, and an effective space is provided for the expansion of subsequent products. And meanwhile, the diaphragm pump is transformed by utilizing an electromagnetic driving principle, so that noise is eliminated and reduced, the application scene of the equipment is expanded, and the product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the field of gas detection, and specifically, to a gas detector device. Background Art

[0002] Gas detection technology is an important technology in the fields of environmental monitoring, public safety, medical and health, food safety, military aerospace, etc. With the development of technology, gas detection technology has evolved from the application of a single sensor to the application of an integrated and intelligent system. Gas detection technology is developing in the direction of miniaturization, integration, and intelligence. With the development of the Internet of Things, micro-nano processing technology, and artificial intelligence technology, the application of gas sensors will be more extensive, realizing the transformation from single function to comprehensive performance improvement and then to intelligence.

[0003] At present, although some existing devices can achieve the extraction and detection of sampled gas, the separated installation has a large volume and heavy weight, which is not conducive to the subsequent function expansion of the product. At the same time, the vibration and noise generated by the operation of the pump in the existing device driven by the motor are too large, which is not conducive to the application in semiconductor workshops and laboratories. Summary of the Utility Model

[0004] The utility model provides a gas detector device, which solves the problems that the separated installation of the existing device has a large volume and heavy weight, is not conducive to the subsequent function expansion of the product, and the vibration and noise generated by the operation of the pump in the existing device driven by the motor are too large, which is not conducive to the application in semiconductor workshops and laboratories.

[0005] The technical solution of the utility model is as follows: A gas detector device includes a pump body unit for completing the extraction and discharge of sampled gas, a gas chamber unit providing a gas flow path and a gas chamber, a detection unit for detecting the gas concentration content, and a display unit for displaying various parameters of the gas. The pump body unit and the detection unit are installed on the gas chamber unit, and both the detection unit and the display unit are electrically connected to the signal processing main board;

[0006] The gas chamber unit includes a gas chamber main body with a gas path, and a chamber cover plate and an air inlet / outlet connector are heat-melted on the gas chamber main body;

[0007] The pump body unit includes a plastic fixing frame body. One end of the plastic fixing frame body is snap-connected with a stacked silicon steel sheet. A metal wire coil wound around the plastic fixing frame body is arranged below the stacked silicon steel sheet. The plastic fixing frame body is bolted to a pump base. A circular through groove is opened at the bottom of the pump base, and a movable rotating plate is installed on the upper part. A permanent magnet is installed at one end of the rotating plate close to the stacked silicon steel sheet. The rotating plate is connected to a diaphragm pump through a hexagon nut. The diaphragm pump is fixedly connected to the pump base, and the air port of the diaphragm pump passes through the circular through groove of the pump base;

[0008] The detection unit includes a lower cover and an upper cover. The upper cover has a circular detection port, and the circular detection port is docked with the chamber cover plate.

[0009] The display unit has a display circuit board, and the display circuit board is electrically connected to the signal processing main board.

[0010] Preferably, the air chamber body and the chamber cover plate form a gas chamber. The chamber cover plate is provided with an air outlet and is close to the circular detection port of the upper cover. The gas path of the air chamber body is communicated with the gas path of the diaphragm pump, and the pump body unit is installed in the air chamber body.

[0011] Preferably, the air chamber body is connected with a protection member, and the protection member serves to isolate the pump body unit and the detection unit.

[0012] Preferably, the diaphragm pump includes a pump diaphragm. A pressure ring is connected to the outer periphery of the pump diaphragm, and the pressure ring is clamped by a pump base buckle. A one-way valve upper cover plate is installed below the top of the pump diaphragm, and the one-way valve upper cover plate abuts against a one-way membrane to form a one-way valve.

[0013] Preferably, a silica gel ring is installed at one end of the rotating plate away from the metal wire coil, and the silica gel ring is installed in a corresponding slot of the pump base.

[0014] Preferably, the lower cover is connected to the upper cover by a bayonet. A detection circuit board is installed on the inner surface of the lower cover. A signal port is installed on the detection circuit board, and the signal port penetrates through the corner of the upper cover and is electrically connected to the signal processing main board.

[0015] Preferably, the display circuit board is electrically connected to a light guide column, a key, and a display screen.

[0016] Preferably, the display unit further includes a display cover body. The display cover body is hinged to the housing of the gas detector device, and the light guide column, the key, and the display screen are all sleeved in the display cover body.

[0017] The working principle and beneficial effects of the present utility model are as follows: By integrally and compactly installing the pump body unit and the detection unit in the air chamber body, the volume of the device is reduced. Using plastics to prepare various components of this product effectively reduces the overall weight, providing effective space for the expansion of subsequent products. At the same time, the present invention reforms the diaphragm pump using the electromagnetic drive principle, eliminating noise and reducing noise, expanding the applicable scenarios of this device and improving the product competitiveness. Description of the Drawings

[0018] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0019] Figure 1A perspective view of a gas detector device of the present utility model;

[0020] Figure 2 An assembly drawing of a gas detector device of the present utility model;

[0021] Figure 3 A schematic structural diagram of the pump body unit of the present utility model;

[0022] Figure 4 A schematic structural diagram of the gas chamber unit of the present utility model;

[0023] Figure 5 A schematic structural diagram of the detection unit of the present utility model;

[0024] Figure 6 A schematic structural diagram of the display unit of the present utility model;

[0025] Figure 7 A sectional structural diagram of the display unit of the present utility model.

[0026] In the figure: 1. Pump body unit; 2. Gas chamber unit; 201. Protective part; 3. Detection unit; 4. Display unit; 5. Stacked silicon steel sheets; 6. Metal wire coil; 7. Plastic fixing frame; 8. Pump base; 9. Permanent magnet; 10. Hexagonal nut; 11. Rotating plate; 12. Pump diaphragm; 13. Check valve; 14. Silicone ring; 15. Upper cover of check valve; 16. Compression ring; 17. Gas chamber main body; 18. Chamber cover plate; 19. Inlet and outlet connection part; 20. Upper cover; 21. Lower cover; 22. Signal port; 23. Light guide column; 24. Display screen; 25. Button; 26. Display cover body; 27. Display circuit board. Specific implementation manners

[0027] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] As Figures 1 to 2 shown, this embodiment proposes a gas detector device, including a pump body unit 1 for completing the extraction and discharge of the sample gas, a gas chamber unit 2 providing a gas flow path and a gas chamber, a detection unit 3 for detecting the gas concentration content, and a display unit 4 for displaying various parameters of the gas. The pump body unit 1 and the detection unit 3 are installed on the gas chamber unit 2, and both the detection unit 3 and the display unit 4 are electrically connected to the signal processing main board;

[0029] As Figure 4As shown, the air chamber unit 2 includes an air chamber body 17 with an air path, the air chamber body 17 is hot-melt with a chamber cover 18 and an air inlet and outlet connector 19, the air chamber body 17 and the chamber cover 18 form a gas chamber, the chamber cover 18 is provided with an air outlet and a circular detection port close to the upper cover 20, the air path of the air chamber body 17 is connected with the air path of the diaphragm pump, and the pump body unit 1 is installed in the air chamber body 17.

[0030] It should be particularly noted that the air chamber body 17 has multiple sections of air paths, some of which are connected by means of a diaphragm pump and a flow meter; in addition, the chamber cover 18 is provided with a reflux hole.

[0031] like Figure 3 As shown, the pump unit 1 includes a plastic fixed frame 7, one end of the plastic fixed frame 7 is clamped with a stacked silicon steel sheet 5, a metal wire coil 6 wound around the plastic fixed frame 7 is arranged below the stacked silicon steel sheet 5, the plastic fixed frame 7 is bolted to a pump base 8, a circular through groove is provided at the bottom of the pump base 8 and a movable rotating plate 11 is installed on the upper part, a permanent magnet 9 is installed at one end of the rotating plate 11 close to the stacked silicon steel sheet 5, and the rotating plate 11 is connected to a diaphragm pump through a hexagonal nut 10 The diaphragm pump is fixedly connected to the pump base 8 and the air port of the diaphragm pump passes through the circular groove of the pump base 8; the diaphragm pump includes a pump diaphragm 12, the outer periphery of the pump diaphragm 12 is connected to a pressure ring 16, the pressure ring 16 is clamped by the pump base 8, a one-way valve upper cover plate 15 is installed under the top of the pump diaphragm 12, the one-way valve upper cover plate 15 is abutted against a one-way membrane 13 to form a one-way valve, and a silicone ring 14 is installed at the end of the rotating plate 11 away from the metal wire coil 6, and the silicone ring 14 is installed in the corresponding notch of the pump base 8.

[0032] It should be noted that the diaphragm pump is not driven by a traditional motor, but by using the change of the magnetic field of the stacked silicon steel sheets 5 to move the permanent magnet 9, so that the rotating plate 11 drives the pump diaphragm 12 to move. In addition, the one-way valve upper cover plate 15 corresponds to the one-way valve lower cover plate, which respectively form an air inlet pipe and an air outlet pipe, and both docking interfaces have a trapezoidal section.

[0033] like Figure 5 As shown, the detection unit 3 includes a lower cover 21 and an upper cover 20. The upper cover 20 has a circular detection port, which is connected to the chamber cover 18. The lower cover 21 is connected to the upper cover 20 by a bayonet. A detection circuit board is installed on the inner surface of the lower cover 21. A signal port 22 is installed on the detection circuit board. The signal port 22 passes through the corners of the upper cover 20 and is electrically connected to the signal processing main board.

[0034] It should be particularly noted that the circular detection port is sealed and connected to the chamber cover 18 .

[0035] like Figures 6 - 7As shown in the figure, the display unit 4 has a display circuit board 27, which is electrically connected to the signal processing main board. The display unit 4 further includes a display cover 26, which is hinged to the housing of the gas detector device. The light guide column 23, the button 25, and the display screen 24 are all sleeved in the display cover 26, and the display circuit board 27 is electrically connected to the light guide column 23, the button 25, and the display screen 24.

[0036] As Figure 2 shown in the figure, the air chamber main body 17 is connected with a protection part 201, and the protection part 201 functions to isolate the pump body unit 1 and the detection unit 3.

[0037] It should be particularly noted that one end of the protection part 201 is clamped with the air chamber main body 17, and the other end is rotatably connected to the air chamber main body 17.

[0038] It should be particularly noted that the air chamber main body, the plastic fixing frame, the protection part, the pump base, the diaphragm pump, etc. are all plastic products.

[0039] Working principle: The pump body unit 1 works to generate negative pressure, and extracts the sampled gas from the inlet of the air inlet and outlet connector 19 to the outlet of the chamber cover 18. The detection unit 3 detects the sampled gas, and conducts the detected signal to the signal processing main board through the signal port 22 on the detection circuit board for analysis and calculation. Finally, the measurement result is displayed on the display unit 4. At the same time, the negative pressure generated by the operation of the pump body unit 1 causes the detected gas to continue to flow through the gas path in the air chamber main body 17 to the pump body unit 1, and then the measured gas is discharged from the outlet of the air inlet and outlet connector 19 through another gas path in the air chamber main body 17, forming a complete extraction and detection process.

[0040] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas detector device, characterized in that, It includes a pump body unit (1) for completing the extraction and discharge of the sample gas, a gas chamber unit (2) providing a gas flow path and a gas chamber, a detection unit (3) for detecting the gas concentration content, and a display unit (4) for displaying various parameters of the gas. The pump body unit (1) and the detection unit (3) are installed on the gas chamber unit (2), and both the detection unit (3) and the display unit (4) are electrically connected to the signal processing main board; The gas chamber unit (2) includes a gas chamber body (17) having a gas path, and a chamber cover plate (18) and an air inlet / outlet connector (19) are heat-melted on the gas chamber body (17); The pump body unit (1) includes a plastic fixing frame (7). One end of the plastic fixing frame (7) is snap-connected with stacked silicon steel sheets (5). A metal wire coil (6) wound around the plastic fixing frame (7) is arranged below the stacked silicon steel sheets (5). The plastic fixing frame (7) is bolted to a pump base (8). A circular through groove is formed at the bottom of the pump base (8), and a movable rotating plate (11) is installed on the upper part. A permanent magnet (9) is installed at one end of the rotating plate (11) close to the stacked silicon steel sheets (5). The rotating plate (11) is connected to a diaphragm pump through a hexagonal nut (10). The diaphragm pump is fixedly connected to the pump base (8), and the gas port of the diaphragm pump passes through the circular through groove of the pump base (8); The detection unit (3) includes a lower cover (21) and an upper cover (20). The upper cover (20) has a circular detection port, and the circular detection port is docked with the chamber cover plate (18); The display unit (4) has a display circuit board (27), and the display circuit board (27) is electrically connected to the signal processing main board.

2. The gas detector device according to claim 1, characterized in that, The gas chamber body (17) and the chamber cover plate (18) form a gas chamber. An air outlet is formed on the chamber cover plate (18) and is close to the circular detection port of the upper cover (20). The gas path of the gas chamber body (17) is communicated with the gas path of the diaphragm pump. The pump body unit (1) is installed in the gas chamber body (17).

3. A gas detector device according to claim 2, characterized in that, The gas chamber body (17) is connected with a protection member (201), and the protection member (201) functions to isolate the pump body unit (1) and the detection unit (3).

4. A gas detector device according to claim 1, characterized in that, The diaphragm pump includes a pump diaphragm (12). A pressure ring (16) is connected to the outer periphery of the pump diaphragm (12). The pressure ring (16) is clamped tightly by a buckle of the pump base (8). A one-way valve upper cover plate (15) is installed below the top of the pump diaphragm (12). The one-way valve upper cover plate (15) abuts against a one-way membrane (13) to form a one-way valve.

5. A gas detector device according to claim 4, characterized in that, A silica gel ring (14) is installed at one end of the rotating plate (11) away from the metal wire coil (6), and the silica gel ring (14) is installed in a corresponding slot of the pump base (8).

6. The gas detector device according to claim 1, characterized in that, The lower cover (21) is connected to the upper cover (20) by a bayonet. A detection circuit board is installed on the inner surface of the lower cover (21). A signal port (22) is installed on the detection circuit board. The signal port (22) penetrates through the corner of the upper cover (20) and is electrically connected to the signal processing main board.

7. A gas detector device according to claim 1, characterized in that, The display circuit board (27) is electrically connected to a light guide column (23), a button (25), and a display screen (24).

8. A gas detector device according to claim 7, characterized in that, The display unit (4) further includes a display cover body (26). The display cover body (26) is hinged to the housing of the gas detector device, and the light guide column (23), the button (25), and the display screen (24) are all sleeved in the display cover body (26).

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