Portable combustible gas detection device

Abstract

The utility model relates to the technical field of gas detection, and specifically discloses a portable combustible gas detection device, including a detector and a sampling probe; a shoulder strap with adjustable length is connected to the detector, and a connecting tube used in conjunction with the sampling probe is connected to the bottom of the detector; the sampling probe includes a telescopic rod and a bell-shaped cover connected to the bottom of the telescopic rod, the top of the telescopic rod is connected to a rotating seat, the rotating seat is rotatably connected to a handle, and a positioning piece for fixing the handle position is provided on the rotating seat; a storage for storing the connecting tube is provided at the bottom of the detector; the setting of the shoulder strap in the utility model makes it convenient to place the detector on one side of the person's body, which is conducive to timely viewing of detection data and convenient use, and the shoulder strap can be specifically adjusted according to the person's use situation, and the device with an adjustable handle angle, in conjunction with the telescopic adjustment of the telescopic rod, can be adjusted according to the convenience of operation of the person and then used, thereby improving practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a portable combustible gas detection device. Background Art

[0002] In the detection of leaks in natural gas pipelines or other methane leaks in the air, in order to prevent explosions caused by leakage and accumulation and to ensure the safety of personnel and equipment, corresponding detectors are usually used, such as laser detection, which uses the absorption characteristics of molecules to laser to measure the absorption of molecules. Timely detection of combustible gas at the target location facilitates timely treatment.

[0003] The portable infrared gas detection and analysis device disclosed in the existing patent announcement number CN216718195U includes a gas analyzer, a shoulder strap, a protective box and a telescopic bracket. The gas analyzer includes an instrument body, an infrared sensor and a connecting line, and the connecting line is connected to the infrared sensor and the instrument body respectively; the shoulder strap includes a first shoulder strap and a second shoulder strap, and the two ends of the first shoulder strap are respectively connected to one side of the back of the instrument body, and the two ends of the second shoulder strap are respectively connected to the other side of the back of the instrument body; the protective box includes a box body and a protective plate, the instrument body is placed in the box body, and the protective plate is slidably connected to the box body; the telescopic bracket is connected to one side of the box body, and the telescopic bracket is provided with a receiving slot, and the infrared sensor is placed in the receiving slot; it is easy to carry and can be used for collection and detection in different corners of the detection site.

[0004] The above detection and analysis device can be carried and detect the gas at the target location in time, but it is not convenient to view the data on the instrument in time during the detection, and the above device has many accessories, and its practicality still needs to be improved. In view of the above problems, a portable combustible gas detection device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a portable combustible gas detection device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Portable combustible gas detection device, including a detector and a sampling probe;

[0008] The detector is connected to a shoulder strap with adjustable length, and the bottom of the detector is connected to a connecting tube used in conjunction with the sampling probe;

[0009] The sampling probe comprises a telescopic rod and a bell-shaped cover connected to the bottom of the telescopic rod, the top of the telescopic rod is connected to a rotating seat, the rotating seat is rotatably connected to a handle, and a positioning piece for fixing the position of the handle is provided on the rotating seat;

[0010] A receiving piece for receiving the connecting tube is provided at the bottom of the detector.

[0011] In an optional solution: both ends of the detector are provided with holes for the shoulder strap to pass through, and the end of the shoulder strap is connected with a Japanese buckle that can be worn on the shoulder strap body.

[0012] In an optional solution: a protective pad is provided on one side of the shoulder strap, and two sets of fixing rings are connected to the protective pad, and the fixing rings are passed through the shoulder strap.

[0013] In an optional solution: a mounting groove for mounting a positioning member is provided at the bottom of the detector, and a groove for a connecting pipe to pass through is provided on one side of the mounting groove.

[0014] In an optional solution: the storage component includes a limit plate and a sleeve fixedly connected to one side of the limit plate, a fixing ring is fixedly connected in the installation groove, the inner wall of the sleeve is slidably matched with the outer wall of the fixing ring, a spring is connected in the fixing ring, and the spring passes through the sleeve to connect to the limit plate.

[0015] In an optional solution: the length of the limiting plate is greater than the length of the sleeve, the width of the limiting plate is greater than the width of the sleeve, and the outer wall of the limiting plate is provided with a recess.

[0016] In an optional solution: the positioning member includes a positioning bolt threadedly connected to one side of the rotating seat, the handle side wall is provided with a plurality of screw holes arranged in a circular array, the screw holes correspond to the positioning bolts, and the rotating seat is provided with positioning holes corresponding to the screw holes.

[0017] In an optional solution: a joint connected to the connecting pipe is provided on one side of the telescopic rod, and a suction pipe connected to the joint is provided inside the telescopic rod.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The setting of the shoulder strap in the utility model makes it convenient to place the detector on the side of the person's body, which is conducive to timely viewing of the detection data and convenient to use. The shoulder strap can be specifically adjusted according to the use of the person, thereby improving practicality.

[0020] The sampling probe in the utility model is convenient for personnel to operate and use; the bell-shaped cover can be set at the detection location to facilitate detection; the handle can adjust the angle of the device, and the telescopic adjustment of the telescopic rod can be adjusted according to the convenience of personnel operation and then used, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2It is a schematic diagram of the structure of the sampling probe in the utility model.

[0023] Figure 3 It is a schematic diagram of the structure of the detector and the shoulder strap in the utility model.

[0024] Figure 4 It is a structural schematic diagram of the bottom of the detector in the utility model.

[0025] Figure 5 It is a schematic diagram of the partial disassembly structure of the detector in the utility model.

[0026] In the figure: 11, detector; 12, shoulder strap; 13, connecting tube; 14, sampling probe; 15, telescopic rod; 16, bell-shaped cover; 17, rotating seat; 18, handle; 19, positioning bolt; 20, positioning hole; 21, Japanese buckle; 22, belt threading hole; 23, protective pad; 24, fixing ring; 25, mounting groove; 26, groove; 27, limit plate; 28, sleeve; 29, spring; 30, fixing ring. DETAILED DESCRIPTION

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 5In this embodiment, the portable combustible gas detection device includes a detector 11 and a sampling probe 14; the detector 11 can be an existing laser detector, that is, the principle of tunable laser spectroscopy (TDLAS) is applied, and the instrument has a built-in tunable laser diode, which emits a laser beam with a wavelength of 1653nm. This wavelength is the same as the maximum absorption wavelength of methane molecules. When encountering methane molecules during detection, part of the laser will be absorbed by the methane molecules, and the concentration of methane can be known by measuring the laser absorption rate. The laser sensor replaces traditional flame ionization (FID), catalytic combustion, semiconductor and other sensors, and selectively detects the presence of methane from other hydrocarbon gases without generating false alarms for other carbon oxides;

[0030] The detector 11 is connected to a shoulder strap 12 of adjustable length, and the bottom of the detector 11 is connected to a connecting tube 13 used in conjunction with a sampling probe 14;

[0031] The sampling probe 14 includes a telescopic rod 15 and a bell-shaped cover 16 connected to the bottom of the telescopic rod 15. The top of the telescopic rod 15 is connected to a rotating seat 17. The rotating seat 17 is rotatably connected to a handle 18. A positioning piece for fixing the position of the handle 18 is provided on the rotating seat 17.

[0032] The bottom of the detector 11 is provided with a receiving piece for receiving the connecting tube 13;

[0033] In this embodiment, the connecting tube 13 is connected to the telescopic rod 15, the shoulder strap 12 is hung around the person's neck or carried diagonally, the shoulder strap 12 is adjusted to a suitable length, the handle 18 is adjusted to a suitable angle, the telescopic rod 15 is telescopically adjusted, the sampling probe 14 can be operated for sampling, and the bell hood 16 is covered at the target sampling point to detect gas.

[0034] In another embodiment, both ends of the detector 11 are provided with strap holes 22 for the strap 12 to pass through, and the end of the strap 12 is connected with a Japanese buckle 21 that can be worn on the strap body of the strap 12; by adjusting the Japanese buckle 21 on the strap 12, the length of the strap 12 can be adjusted, and actual adjustment can be made according to the needs of the user.

[0035] In another embodiment, a protective pad 23 is provided on one side of the shoulder strap 12, and two sets of fixing rings 24 are connected to the protective pad 23, and the fixing ring 24 is passed through the shoulder strap 12; when a person hangs the shoulder strap 12 around the neck, the protective pad 23 can contact the back of the neck, and when the person uses the shoulder strap 12 diagonally, the protective pad 23 can contact the person's shoulder. In actual use, the position of the protective pad 23 can be adjusted. When the position of the protective pad 23 is adjusted, the fixing ring 24 slides on the shoulder strap 12. The setting of the protective pad 23 can disperse the pressure and increase the comfort.

[0036] In another embodiment, a mounting groove 25 for mounting a positioning member is provided at the bottom of the detector 11 , and a groove 26 for the connecting tube 13 to pass through is provided on one side of the mounting groove 25 ; the connecting tube 13 can pass through the groove 26 into the mounting groove 25 .

[0037] In another embodiment, the storage member includes a limit plate 27 and a sleeve 28 fixedly connected to one side of the limit plate 27, a fixing ring 30 is fixedly connected in the mounting groove 25, the inner wall of the sleeve 28 is slidably matched with the outer wall of the fixing ring 30, a spring 29 is connected in the fixing ring 30, and the spring 29 passes through the sleeve 28 and is connected to the limit plate 27;

[0038] When the connecting tube 13 needs to be wound and stored, the limiting plate 27 can be pulled to wind the connecting tube 13 around the sleeve 28. At this time, the spring 29 is in a stretched state. The limiting plate 27 is loosened, and the sleeve 28 is sleeved on the outside of the fixing ring 30 under the tension of the spring 29, and the connecting tube 13 can be stored in the installation groove 25.

[0039] In another embodiment, the length of the limit plate 27 is greater than the length of the sleeve 28, the width of the limit plate 27 is greater than the width of the sleeve 28, and a recess is provided on the outer wall of the limit plate 27; the setting of the recess facilitates the insertion of fingers to pull the limit plate 27.

[0040] In another embodiment, the positioning member includes a positioning bolt 19 threadedly connected to one side of the rotating seat 17, and the side wall of the handle 18 is provided with a plurality of screw holes arranged in a circular array, and the screw holes correspond to the positioning bolts 19. The rotating seat 17 is provided with positioning holes 20 corresponding to the screw holes; by screwing the positioning bolts 19 into the corresponding positioning holes 20, the rotation position of the handle 18 can be fixed, thereby limiting the angle of the handle 18 after adjustment.

[0041] In another embodiment, a joint connected to the connecting pipe 13 is provided on one side of the telescopic rod 15, and a suction pipe connected to the joint is provided inside the telescopic rod 15; an existing suction pump can be installed at the bottom end of the telescopic rod 15 to assist in air extraction or air delivery.

[0042] The working principle of the utility model is: the connecting tube 13 is connected with the telescopic rod 15, the shoulder strap 12 is hung on the neck of the person or carried diagonally, the shoulder strap 12 is adjusted to a suitable length, the handle 18 is adjusted to a suitable angle, the telescopic rod 15 is telescopically adjusted, the sampling probe 14 can be operated to sample, the bell jar 16 is covered at the target sampling point, the gas is detected, and the gas is sent to the detector 11 for detection. It can be used in municipal buried pipeline detection, courtyard pipeline detection, household pipeline detection, station detection, and long-distance pipeline detection.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A portable combustible gas detection device, comprising a detector (11) and a sampling probe (14); Features: The detector (11) is connected to a shoulder strap (12) of adjustable length, and the bottom of the detector (11) is connected to a connecting tube (13) for use with a sampling probe (14); The sampling probe (14) comprises a telescopic rod (15) and a bell-shaped cover (16) connected to the bottom of the telescopic rod (15); the top of the telescopic rod (15) is connected to a rotating seat (17); the rotating seat (17) is rotatably connected to a handle (18); and a positioning member for fixing the position of the handle (18) is provided on the rotating seat (17); The bottom of the detector (11) is provided with a receiving piece for receiving the connecting tube (13).

2. The portable combustible gas detection device according to claim 1, characterized in that: Both ends of the detector (11) are provided with belt holes (22) for the shoulder strap (12) to pass through, and the ends of the shoulder strap (12) are connected with Japanese-style buckles (21) that can be worn on the belt body of the shoulder strap (12).

3. The portable combustible gas detection device according to claim 1, characterized in that: A protective pad (23) is provided on one side of the shoulder strap (12), and two groups of fixing rings (24) are connected to the protective pad (23), and the fixing rings (24) are passed through the shoulder strap (12).

4. The portable combustible gas detection device according to claim 1, characterized in that: The bottom of the detector (11) is provided with a mounting groove (25) for mounting a positioning member, and one side of the mounting groove (25) is provided with a groove (26) for the connecting pipe (13) to pass through.

5. The portable combustible gas detection device according to claim 4, characterized in that: The storage component comprises a limiting plate (27) and a sleeve (28) fixedly connected to one side of the limiting plate (27); a fixing ring (30) is fixedly connected inside the installation groove (25); an inner wall of the sleeve (28) is slidably matched with an outer wall of the fixing ring (30); a spring (29) is connected inside the fixing ring (30); and the spring (29) passes through the sleeve (28) and is connected to the limiting plate (27).

6. The portable combustible gas detection device according to claim 5, characterized in that: The length of the limiting plate (27) is greater than the length of the sleeve (28), the width of the limiting plate (27) is greater than the width of the sleeve (28), and a recess is provided on the outer wall of the limiting plate (27).

7. The portable combustible gas detection device according to claim 1, characterized in that: The positioning member comprises a positioning bolt (19) threadedly connected to one side of the rotating seat (17); a side wall of the handle (18) is provided with a plurality of screw holes arranged in a circular array, the screw holes corresponding to the positioning bolt (19); and the rotating seat (17) is provided with a positioning hole (20) corresponding to the screw hole.

8. The portable combustible gas detection device according to claim 1, characterized in that: A joint connected to the connecting pipe (13) is provided on one side of the telescopic rod (15), and a suction pipe connected to the joint is provided inside the telescopic rod (15).

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