Gas detector

Abstract

The utility model provides a gas detector, which relates to the technical field of gas detectors and comprises a first shell, a second shell is arranged at the bottom of the first shell, a plurality of uniformly distributed connecting rods are fixedly mounted on the inner wall of the second shell, and first threaded grooves are formed in the tops of the plurality of connecting rods. And a plurality of waterproof grooves which are uniformly distributed are formed in the top of the first shell. During installation, a worker inserts a bolt into the threaded hole and then rotates the bolt until the bolt enters the first threaded groove, at the moment, the first shell and the second shell are fixed together, then the worker inserts a threaded rod into the second threaded groove and rotates a rotating rod, the threaded rod rotates, and the first shell and the second shell are fixed together. And at the moment, the second sealing ring completely enters the connecting groove, the second sealing ring and the protective cover can reduce the probability that outside water enters the second threaded groove, and then the probability that the bolt is corroded is reduced.

Description

Technical Field

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

[0002] In many fields such as modern industrial production, environmental monitoring, and public safety, the accurate detection of gases is crucial. As a device for detecting and measuring the concentration or composition of specific gases, gas detectors have gone through multiple development stages. Types include combustible gas detectors: used to detect combustible gases (such as natural gas, coal gas, etc.), usually using catalytic combustion or infrared technology. Toxic gas detectors: used to detect toxic gases (such as carbon monoxide, ammonia, etc.), and common sensor types are electrochemical and infrared sensors. Oxygen detectors: used to measure the oxygen concentration in the environment, usually used in confined spaces or potentially oxygen-deficient environments.

[0003] In the prior art, gas detectors usually need to work in different environments according to their uses. Some traditional gas detectors are often used in humid environments, which can cause the internal circuit boards to mildew and be damaged, greatly reducing the service life of the equipment. And some gas detectors usually use bolts to install the housing. The bolts may corrode when used in a humid environment, which may lead to unstable fixing of the housing, and further may cause external moisture to enter the housing, further damaging the internal circuit board. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that in the prior art, some gas detectors usually use bolts to install the housing, and the bolts may corrode when used in a humid environment, which may lead to unstable fixing of the housing, and to propose a gas detector.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A gas detector includes a first housing, a second housing is arranged at the bottom of the first housing, a plurality of uniformly distributed connecting rods are fixedly installed on the inner wall of the second housing, first threaded grooves are opened at the tops of the plurality of connecting rods, a plurality of uniformly distributed waterproof grooves are opened at the top of the first housing, second threaded grooves are opened on the inner walls of the waterproof grooves, threaded holes are penetrated through the inner walls of the second threaded grooves, bolts are threadedly connected to the inner walls of the threaded holes, connecting grooves are opened on the inner walls of the waterproof grooves, threaded rods are threadedly connected to the inner walls of the second threaded grooves, a protective cover is fixedly installed at the top of the threaded rod, a second sealing ring is fixedly installed at the bottom of the protective cover, the second sealing ring is slidably connected to the connecting groove, and a rotating rod is fixedly installed at the top of the protective cover.

[0006] Preferably, a connecting ring is fixedly installed at the bottom of the first housing, and a first sealing ring is fixedly installed at the bottom of the connecting ring.

[0007] Preferably, a protective groove is formed at the top of the second housing, and the protective groove is slidably connected to the connecting ring and the first sealing ring.

[0008] Preferably, a plurality of circuit boards are fixedly installed on the inner wall of the second housing.

[0009] Preferably, a display screen and four evenly distributed buttons are provided at the top of the first housing.

[0010] Preferably, a hose is fixedly installed on the outer wall of the second housing, and an array sensor is fixedly installed at one end of the hose away from the second housing.

[0011] Preferably, the outer walls of the plurality of protective covers are respectively fitted with the inner walls of the plurality of waterproof grooves, the outer wall of the first sealing ring is fitted with the inner wall of the protective groove, and the outer wall of the second sealing ring is fitted with the inner wall of the connecting groove.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0013] 1. In the present utility model, during installation, the worker inserts the bolt into the threaded hole and then rotates the bolt until the bolt enters the first threaded groove. At this time, the first housing and the second housing are fixed together. Then, the worker inserts the threaded rod into the second threaded groove and rotates the rotating rod. The threaded rod rotates until the threaded rod completely enters the second threaded groove. At this time, the second sealing ring completely enters the connecting groove, and the second sealing ring and the protective cover can reduce the probability of external moisture entering the second threaded groove, thereby reducing the probability of corrosion of the bolt.

[0014] 2. In the present utility model, during installation, the worker inserts the first sealing ring and the connecting ring into the protective groove at the top of the second housing. When the bottom of the first sealing ring is in contact with the inner wall of the protective groove and the connecting ring completely enters the protective groove, the first housing and the second housing are in contact with each other. The first sealing ring can reduce the entry of external moisture from between the first housing and the second housing into the inside of the first housing and the second housing, affecting the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an overall three-dimensional view of a gas detector proposed by the present utility model;

[0016] Figure 2 is a three-dimensional view of the internal structure of the second housing of a gas detector proposed by the present utility model;

[0017] Figure 3 is a three-dimensional view of the first housing of a gas detector proposed by the present utility model;

[0018] Figure 4 is a cross-sectional view of the first housing of a gas detector proposed by the present utility model.

[0019] Legend: 1. First housing; 2. Second housing; 3. Hose; 4. Array sensor; 5. Display screen; 6. Button; 7. Circuit board; 8. Protection groove; 9. Connecting rod; 10. First thread groove; 11. Connecting ring; 12. First sealing ring; 13. Waterproof groove; 14. Connecting groove; 15. Second thread groove; 16. Thread hole; 17. Bolt; 18. Threaded rod; 19. Protection cover; 20. Second sealing ring; 21. Rotating rod. Detailed implementation

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment 1, as Figures 1-4 shown, the present utility model provides a gas detector, including a first housing 1, a second housing 2 is arranged at the bottom of the first housing 1, a plurality of uniformly distributed connecting rods 9 are fixedly installed on the inner wall of the second housing 2, and a first thread groove 10 is opened at the top of each of the plurality of connecting rods 9. A plurality of uniformly distributed waterproof grooves 13 are opened at the top of the first housing 1. A second thread groove 15 is opened on the inner wall of the waterproof groove 13. A thread hole 16 is penetrated through the inner wall of the second thread groove 15. A bolt 17 is threadedly connected to the inner wall of the thread hole 16. A connecting groove 14 is opened on the inner wall of the waterproof groove 13. A threaded rod 18 is threadedly connected to the inner wall of the second thread groove 15. A protection cover 19 is fixedly installed at the top of the threaded rod 18. A second sealing ring 20 is fixedly installed at the bottom of the protection cover 19. The second sealing ring 20 is slidably connected to the connecting groove 14. A rotating rod 21 is fixedly installed at the top of the protection cover 19.

[0023] The effect achieved by the entire Embodiment 1 is that during installation, the worker inserts the bolt 17 into the thread hole 16, and then rotates the bolt 17 until the bolt 17 enters the first thread groove 10. At this time, the first housing 1 and the second housing 2 are fixed together. Then the worker inserts the threaded rod 18 into the second thread groove 15 and rotates the rotating rod 21. The threaded rod 18 rotates until the threaded rod 18 completely enters the second thread groove 15. At this time, the second sealing ring 20 completely enters the connecting groove 14. The second sealing ring 20 and the protection cover 19 can reduce the probability of external moisture entering the second thread groove 15, thereby reducing the probability of corrosion of the bolt 17.

[0024] Embodiment 2, as Figures 1-4 shown, further, a connecting ring 11 is fixedly installed at the bottom of the first housing 1, and a first sealing ring 12 is fixedly installed at the bottom of the connecting ring 11.

[0025] Further, a protective groove 8 is formed at the top of the second housing 2, and the protective groove 8 is slidably connected to the connecting ring 11 and the first sealing ring 12.

[0026] Further, a plurality of circuit boards 7 are fixedly installed on the inner wall of the second housing 2.

[0027] Further, a display screen 5 and four evenly distributed buttons 6 are arranged at the top of the first housing 1.

[0028] Further, a hose 3 is fixedly installed on the outer wall of the second housing 2, and an array sensor 4 is fixedly installed at one end of the hose 3 away from the second housing 2.

[0029] Further, the outer walls of the plurality of protective covers 19 are respectively fitted with the inner walls of the plurality of waterproof grooves 13, the outer wall of the first sealing ring 12 is fitted with the inner wall of the protective groove 8, which reduces the probability of moisture entering the second threaded groove 15, and the outer wall of the second sealing ring 20 is fitted with the inner wall of the connecting groove 14, which can reduce the probability of external moisture entering the interiors of the first housing 1 and the second housing 2 from between the first housing 1 and the second housing 2.

[0030] The effect achieved by the entire Embodiment 2 is that during installation, the staff inserts the first sealing ring 12 and the connecting ring 11 into the protective groove 8 at the top of the second housing 2. When the bottom of the first sealing ring 12 is in contact with the inner wall of the protective groove 8 and the connecting ring 11 completely enters the protective groove 8, the first housing 1 and the second housing 2 are fitted together. The first sealing ring 12 can reduce the probability of external moisture entering the interiors of the first housing 1 and the second housing 2 from between the first housing 1 and the second housing 2 and affecting the circuit board 7.

[0031] Working principle: During installation, the staff inserts the first sealing ring 12 and the connecting ring 11 into the protective groove 8 at the top of the second housing 2. When the bottom of the first sealing ring 12 fits against the inner wall of the protective groove 8 and the connecting ring 11 is completely inside the protective groove 8, the first housing 1 and the second housing 2 are joined together. The first sealing ring 12 can reduce the probability of external moisture entering the interiors of the first housing 1 and the second housing 2 between the first housing 1 and the second housing 2, which may affect the circuit board 7. Then, the staff inserts the bolt 17 into the threaded hole 16 and then rotates the bolt 17 until the bolt 17 enters the first threaded groove 10. At this time, the first housing 1 and the second housing 2 are fixed together. Then, the staff inserts the threaded rod 18 into the second threaded groove 15 and rotates the rotating rod 21. The threaded rod 18 rotates until the threaded rod 18 is completely inside the second threaded groove 15. At this time, the second sealing ring 20 is completely inside the connecting groove 14. The second sealing ring 20 and the protective cover 19 can reduce the probability of external moisture entering the second threaded groove 15, thereby reducing the probability of corrosion of the bolt 17. When in use, the operator long-presses the up and down buttons 6, and the gas detector system is powered on. The array sensor 4 is used to detect the current gas, automatically identify and analyze the gas content, and the remote end receives the feedback and generates a detection report. In addition, this device can be placed in the detection environment for a long time to input data to the remote client in real time.

[0032] The above are only the preferred embodiments of the present invention, and do not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A gas detector, comprising a first housing (1), characterized in that: A second shell (2) is arranged at the bottom of the first shell (1); a plurality of evenly distributed connecting rods (9) are fixedly mounted on the inner wall of the second shell (2); a first threaded groove (10) is provided on the top of each of the connecting rods (9); a plurality of evenly distributed waterproof grooves (13) are provided on the top of the first shell (1); a second threaded groove (15) is provided on the inner wall of the waterproof groove (13); a threaded hole (16) is provided through the inner wall of the second threaded groove (15); a bolt (17) is threadedly connected to the inner wall of the threaded hole (16); a connecting groove (14) is provided on the inner wall of the waterproof groove (13); a threaded rod (18) is threadedly connected to the inner wall of the second threaded groove (15); a protective cover (19) is fixedly mounted on the top of the threaded rod (18); a second sealing ring (20) is fixedly mounted on the bottom of the protective cover (19); the second sealing ring (20) is slidably connected to the connecting groove (14); and a rotating rod (21) is fixedly mounted on the top of the protective cover (19).

2. A gas detector according to claim 1, characterized in that: A connecting ring (11) is fixedly mounted on the bottom of the first shell (1), and a first sealing ring (12) is fixedly mounted on the bottom of the connecting ring (11).

3. A gas detector according to claim 1, characterized in that: A protection groove (8) is provided on the top of the second shell (2), and the protection groove (8) is slidably connected to the connecting ring (11) and the first sealing ring (12).

4. A gas detector according to claim 1, characterized in that: A plurality of circuit boards (7) are fixedly mounted on the inner wall of the second shell (2).

5. A gas detector according to claim 1, characterized in that: A display screen (5) and four evenly distributed buttons (6) are arranged on the top of the first housing (1).

6. A gas detector according to claim 1, characterized in that: A hose (3) is fixedly mounted on the outer wall of the second shell (2), and an array sensor (4) is fixedly mounted on one end of the hose (3) away from the second shell (2).

7. A gas detector according to claim 1, characterized in that: The outer walls of the plurality of protective covers (19) are respectively fitted with the inner walls of the plurality of waterproof grooves (13); the outer wall of the first sealing ring (12) is fitted with the inner wall of the protective groove (8); and the outer wall of the second sealing ring (20) is fitted with the inner wall of the connecting groove (14).

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