Detection mechanism for fixed gas detector

Abstract

The utility model discloses a detection mechanism for a fixed gas detector, and relates to the technical field of gas detection. Comprising a fixing plate, a gas detector main body, a probe, a detection cover, a mounting mechanism, a testing mechanism and a connecting mechanism, wherein the probe is mounted on one side of the outer wall of the fixing plate; the detection cover is mounted at the bottom of the outer wall of the gas detector main body; the outer wall of the probe is wrapped by the detection cover; the gas detector is arranged between the gas detector main body and the detection cover. According to the detection mechanism for the fixed gas detector, the detection cover is matched with the test mechanism, so that test gases with different concentrations can be accurately filled into the detection cover, the gas concentration in the cover can be detected in real time, and the working performance of the gas detector under the condition of gases with different concentrations can be accurately evaluated; and whether the gas detector can work normally and whether the sensitivity of the gas detector meets requirements can be effectively detected.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, specifically a detection mechanism for a fixed gas detector. Background Technology

[0002] A gas detector is an instrument used to detect the concentration of leaked gases. It includes portable gas detectors, handheld gas detectors, stationary gas detectors, and online gas detectors. It mainly uses gas sensors to detect the types of gases present in the environment. Gas sensors are used to detect the composition and content of gases.

[0003] Fixed gas detectors can monitor the concentration of various gases in the environment in real time, providing key data support for safe production and environmental protection. In order to ensure the safety of the working environment in mines, it is necessary to install fixed gas detectors to monitor for leaks of toxic and harmful gases. After the fixed gas detectors are installed, it is not convenient to test whether they can work properly and whether their sensitivity meets the requirements. Utility Model Content

[0004] This invention provides a detection mechanism for a fixed gas detector. Through the cooperation of the detection hood and the testing mechanism, different concentrations of test gas can be precisely injected into the detection hood, and the gas concentration inside the hood can be detected in real time. This allows for accurate evaluation of the gas detector's performance under different gas concentration conditions, effectively detecting whether the gas detector can function normally and whether its sensitivity meets requirements. The connecting mechanism ensures a sealed connection between the gas detector body and the detection hood, forming a closed detection space that effectively prevents external gas interference and avoids test gas leakage, thus ensuring the accuracy of the detection results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detection mechanism for a fixed gas detector, comprising:

[0006] Fixing plate;

[0007] The main body of the gas detector is installed on one side of the outer wall of the fixed plate;

[0008] The probe is installed on the bottom outer wall of the gas detector body;

[0009] A detection cover is installed on the bottom of the outer wall of the gas detector body, and the detection cover wraps around the outer wall of the probe;

[0010] The mounting mechanism is located on the fixed plate;

[0011] The testing mechanism is located on the installation mechanism;

[0012] The connecting mechanism is located between the main body of the gas detector and the detection cover.

[0013] Furthermore, the installation mechanism includes a connecting plate, a telescopic cylinder, and a mounting plate. The connecting plate is fixedly disposed on one side of the outer wall of the fixed plate, the telescopic cylinder is installed on the top of the outer wall of the connecting plate, the mounting plate is fixedly disposed on the output end of the telescopic cylinder, and the detection cover is fixedly disposed on the top of the outer wall of the mounting plate.

[0014] Furthermore, the testing mechanism includes a sealed injection nozzle, an air inlet pipe, a concentration sensor, and an air outlet pipe. The sealed injection nozzle is fixedly disposed on one side of the outer wall of the detection hood, the air inlet pipe is installed on one side of the outer wall of the sealed injection nozzle, the concentration sensor is fixedly disposed on the inner wall of the detection hood, and the air outlet pipe is fixedly disposed on one side of the outer wall of the detection hood.

[0015] Furthermore, the connecting mechanism includes a connecting frame, a mounting frame, a limiting plate, a sealing ring, and a fixing component. The connecting frame is fixedly disposed on the bottom of the outer wall of the gas detector body, the mounting frame is fixedly sleeved on the outer wall of the detection cover, the limiting plate is fixedly disposed on the inner wall of the detection cover, the fixing component is disposed inside the mounting frame, and the sealing ring is fixedly disposed on the top of the outer wall of the limiting plate.

[0016] Furthermore, the fixing component includes a bidirectional threaded rod, a forward and reverse motor, two L-shaped rods, and two fixing holes. The forward and reverse motors are bolted to one side of the outer wall of the mounting frame. The bidirectional threaded rod is fixedly disposed at the output end of the forward and reverse motors. Each L-shaped rod is threaded to the outer wall of the bidirectional threaded rod. Each fixing hole is opened on both sides of the outer wall of the mounting frame. Each L-shaped rod is slidably embedded in the inner wall of the fixing hole.

[0017] Furthermore, a dust cover is installed on the bottom of the outer wall of the gas detector body, and a brush ring is installed on the inner wall of the detection cover.

[0018] This invention provides a detection mechanism for a stationary gas detector. It offers the following advantages:

[0019] (1) The detection mechanism for the fixed gas detector, through the cooperation of the detection hood and the testing mechanism, can accurately inject test gas of different concentrations into the detection hood and detect the gas concentration in the hood in real time. It can accurately evaluate the working performance of the gas detector under different gas concentration conditions, and effectively detect whether the gas detector can work normally and whether its sensitivity meets the requirements.

[0020] (2) The detection mechanism for the fixed gas detector ensures a sealed connection between the gas detector body and the detection cover through the connection mechanism, so that the detection cover and the gas detector body form a closed detection space, effectively preventing external gas interference and avoiding leakage of test gas, thus ensuring the accuracy of the detection results. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is a partial sectional view of the present invention;

[0023] Figure 3 This is a sectional view of the mounting frame of this utility model;

[0024] Figure 4 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0025] In the diagram: 1. Fixing plate; 2. Gas detector body; 3. Probe; 4. Detection cover; 5. Mounting mechanism; 501. Connecting plate; 502. Telescopic cylinder; 503. Mounting plate; 6. Testing mechanism; 601. Sealed injection nozzle; 602. Inlet pipe; 603. Concentration sensor; 604. Outlet pipe; 7. Connecting mechanism; 701. Connecting frame; 702. Mounting frame; 703. Limiting plate; 704. Bidirectional threaded rod; 705. Forward and reverse motor; 706. L-shaped rod; 707. Fixing hole; 708. Sealing ring; 8. Dust cover; 9. Brush ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a detection mechanism for a fixed gas detector, comprising:

[0028] Fixing plate 1;

[0029] The main body 2 of the gas detector is installed on one side of the outer wall of the fixing plate 1;

[0030] Probe 3 is installed on the bottom of the outer wall of the gas detector body 2;

[0031] The detection cover 4 is installed on the bottom of the outer wall of the gas detector body 2, and the detection cover 4 is wrapped around the outer wall of the probe 3.

[0032] Mounting mechanism 5 is mounted on fixing plate 1;

[0033] The testing mechanism 6 is mounted on the installation mechanism 5;

[0034] The connecting mechanism 7 is located between the gas detector body 2 and the detection cover 4.

[0035] In this implementation scheme: the fixing plate 1 is used for the installation and placement of the gas detector body 2. The gas detector body 2 can detect and analyze the gas concentration in the environment. The probe 3 is used to directly contact the gas being detected to obtain a gas sample. The detection cover 4 cooperates with the gas detector body 2 to form a closed detection space to prevent external gas interference and ensure the accuracy of the detection. The detection cover 4 is made of transparent material. The installation mechanism 5 is used to install and adjust the position of the detection cover 4. The testing mechanism 6 is used to simulate gas environments of different concentrations and conduct tests to detect whether the gas detector body 2 is working properly. The connecting mechanism 7 achieves a sealed connection between the gas detector body 2 and the detection cover 4.

[0036] Specifically, the installation mechanism 5 includes a connecting plate 501, a telescopic cylinder 502, and a mounting plate 503. The connecting plate 501 is fixedly installed on one side of the outer wall of the fixing plate 1, the telescopic cylinder 502 is installed on the top of the outer wall of the connecting plate 501, the mounting plate 503 is fixedly installed at the output end of the telescopic cylinder 502, and the detection cover 4 is fixedly installed on the top of the outer wall of the mounting plate 503.

[0037] In this embodiment: the connecting plate 501 is used to install and place the telescopic cylinder 502. The telescopic cylinder 502 drives the mounting plate 503 to rise and fall, thereby adjusting the position of the detection cover 4.

[0038] Specifically, the testing mechanism 6 includes a sealed filling nozzle 601, an air inlet pipe 602, a concentration sensor 603, and an air outlet pipe 604. The sealed filling nozzle 601 is fixedly installed on one side of the outer wall of the detection cover 4, the air inlet pipe 602 is installed on one side of the outer wall of the sealed filling nozzle 601, the concentration sensor 603 is fixedly installed on the inner wall of the detection cover 4, and the air outlet pipe 604 is fixedly installed on one side of the outer wall of the detection cover 4.

[0039] In this embodiment: the sealed filling nozzle 601 allows for the injection of test gases of different concentrations into the detection chamber 4. One end of the inlet pipe 602 is connected to a gas supply device, which introduces the test gas into the detection chamber 4. The concentration sensor 603 is used to detect the concentration of the test gas in the detection chamber 4, providing a reference for the calibration and testing of the gas detector. The outlet pipe 604 is used to discharge the test gas in the detection chamber 4, avoiding gas residue that could cause environmental pollution. One end of the outlet pipe 604 is connected to a gas recovery device. Both the gas supply device and the gas recovery device can be installed on the fixed plate 1.

[0040] Specifically, the connecting mechanism 7 includes a connecting frame 701, a mounting frame 702, a limiting plate 703, a sealing ring 708, and a fixing component. The connecting frame 701 is fixedly installed on the bottom of the outer wall of the gas detector body 2, the mounting frame 702 is fixedly sleeved on the outer wall of the detection cover 4, the limiting plate 703 is fixedly installed on the inner wall of the detection cover 4, the fixing component is located inside the mounting frame 702, and the sealing ring 708 is fixedly installed on the top of the outer wall of the limiting plate 703.

[0041] In this embodiment: the limiting plate 703 is located below the connecting frame 701. The limiting plate 703 facilitates the installation and placement of the sealing ring 708. The sealing ring 708 contacts the connecting frame 701 to achieve a seal between the detection cover 4 and the gas detector body 2, preventing gas leakage.

[0042] Specifically, the fixing components include a bidirectional threaded rod 704, a forward and reverse motor 705, two L-shaped rods 706, and two fixing holes 707. The forward and reverse motor 705 is bolted to one side of the outer wall of the mounting frame 702. The bidirectional threaded rod 704 is fixedly set at the output end of the forward and reverse motor 705. Each L-shaped rod 706 is threaded to the outer wall of the bidirectional threaded rod 704. Each fixing hole 707 is opened on both sides of the outer wall of the mounting frame 702. Each L-shaped rod 706 is slidably embedded in the inner wall of the fixing hole 707.

[0043] In this embodiment: the forward and reverse motors 705 provide power for the rotation of the bidirectional threaded rod 704. When the forward and reverse motors 705 are energized, they drive the bidirectional threaded rod 704 to rotate, which can drive the two L-shaped rods 706 to move simultaneously to the middle or both sides. By the L-shaped rods 706 entering or leaving the fixing holes 707, the mounting frame 702 and the connecting frame 701 can be fixed and loosened, thereby facilitating the installation and disassembly of the detection cover 4. Each L-shaped rod 706 has a sliding fit with the mounting frame 702.

[0044] Specifically, a dust cover 8 is installed on the bottom of the outer wall of the gas detector body 2, and a brush ring 9 is installed on the inner wall of the detection cover 4.

[0045] In this embodiment: the dust cover 8 is wrapped around the outer wall of the probe 3, which can prevent dust and debris from adhering to the outer wall of the probe 3 and affecting its normal operation. As the detection cover 4 rises and falls, it can drive the brush ring 9 to move on the surface of the dust cover 8, so that the brush ring 9 can clean the dust adhering to the surface of the dust cover 8.

[0046] In use, the telescopic cylinder 502 first drives the mounting plate 503 to rise and fall, causing the detection cover 4 to enclose the probe 3. Simultaneously, the connecting frame 701 contacts the sealing ring 708. Then, the forward and reverse motor 705 is activated, driving the bidirectional threaded rod 704 to rotate. This drives two L-shaped rods 706 to move simultaneously towards the center, allowing them to enter the fixing hole 707. This fixes the mounting frame 702 to the connecting frame 701, increasing the sealing effect and creating a closed detection space between the detection cover 4 and the gas detector body 2. Different concentrations of test gas are injected into the detection cover 4 through the sealed injection nozzle 601. The concentration sensor 603 detects the gas concentration inside the detection cover 4 in real time. The gas detector body 2 monitors the gas concentration inside the detection cover 4. The gas is tested. If the fixed gas detector alarms normally, it means that the fixed gas detector is in normal working condition. If the fixed gas detector does not alarm, it means that the fixed gas detector has a fault and needs to be repaired. This test checks whether the fixed gas detector can work. At the same time, by comparing the detection value of the concentration sensor 603 and the output value of the gas detector body 2, it can be determined whether the sensitivity of the gas detector meets the requirements. After the test is completed, the test gas in the detection cover 4 is discharged through the gas outlet pipe 604. The forward and reverse motor 705 drives the bidirectional threaded rod 704 to rotate in the opposite direction, removing the detection cover 4 from the gas detector body 2. The telescopic cylinder 502 drives the mounting plate 503 and the detection cover 4 to return to their original positions.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A detection mechanism for a stationary gas detector, characterized in that, include: Fixing plate (1); The main body (2) of the gas detector is installed on one side of the outer wall of the fixing plate (1); The probe (3) is installed on the bottom of the outer wall of the gas detector body (2); The detection cover (4) is installed on the bottom of the outer wall of the gas detector body (2), and the detection cover (4) is wrapped around the outer wall of the probe (3); The mounting mechanism (5) is mounted on the fixing plate (1); The testing mechanism (6) is mounted on the installation mechanism (5); The connecting mechanism (7) is located between the main body (2) of the gas detector and the detection cover (4).

2. The detection mechanism for a stationary gas detector according to claim 1, characterized in that: The installation mechanism (5) includes a connecting plate (501), a telescopic cylinder (502), and a mounting plate (503). The connecting plate (501) is fixedly disposed on one side of the outer wall of the fixing plate (1). The telescopic cylinder (502) is installed on the top of the outer wall of the connecting plate (501). The mounting plate (503) is fixedly disposed on the output end of the telescopic cylinder (502). The detection cover (4) is fixedly disposed on the top of the outer wall of the mounting plate (503).

3. The detection mechanism for a stationary gas detector according to claim 2, characterized in that: The testing mechanism (6) includes a sealed injection nozzle (601), an air inlet pipe (602), a concentration sensor (603), and an air outlet pipe (604). The sealed injection nozzle (601) is fixedly disposed on one side of the outer wall of the detection cover (4). The air inlet pipe (602) is installed on one side of the outer wall of the sealed injection nozzle (601). The concentration sensor (603) is fixedly disposed on the inner wall of the detection cover (4). The air outlet pipe (604) is fixedly disposed on one side of the outer wall of the detection cover (4).

4. The detection mechanism of claim 3, wherein: The connecting mechanism (7) includes a connecting frame (701), a mounting frame (702), a limiting plate (703), a sealing ring (708), and a fixing component. The connecting frame (701) is fixedly installed on the bottom of the outer wall of the gas detector body (2). The mounting frame (702) is fixedly sleeved on the outer wall of the detection cover (4). The limiting plate (703) is fixedly installed on the inner wall of the detection cover (4). The fixing component is located inside the mounting frame (702). The sealing ring (708) is fixedly installed on the top of the outer wall of the limiting plate (703).

5. The detection mechanism of claim 4, wherein: The fixing component includes a bidirectional threaded rod (704), a forward and reverse motor (705), two L-shaped rods (706), and two fixing holes (707). The forward and reverse motor (705) is bolted to one side of the outer wall of the mounting frame (702). The bidirectional threaded rod (704) is fixedly disposed at the output end of the forward and reverse motor (705). Each L-shaped rod (706) is threaded to the outer wall of the bidirectional threaded rod (704). Each fixing hole (707) is opened on both sides of the outer wall of the mounting frame (702). Each L-shaped rod (706) is slidably embedded in the inner wall of the fixing hole (707).

6. The detection mechanism of claim 5, wherein: A dust cover (8) is installed on the bottom of the outer wall of the gas detector body (2), and a brush ring (9) is installed on the inner wall of the detection cover (4).

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