Fuel gas detector debugging tool

Abstract

The utility model discloses a fuel gas detector debugging tool, which belongs to the field of debugging tools and comprises an adjusting assembly, a testing assembly and a fuel gas detector main body, the testing assembly and the fuel gas detector main body are arranged on the adjusting assembly and used in a matched mode, and the adjusting assembly comprises mounting blocks arranged on the opposite sides of the testing assembly and the fuel gas detector main body. A driving screw rod is rotationally inserted into one side between the two mounting blocks, and a self-locking mechanism connected with the driving screw rod is arranged on one mounting block; the self-locking mechanism comprises a mounting shell, a worm gear fixedly arranged outside the end of the driving lead screw in a sleeving mode is rotationally mounted in the mounting shell, and a worm connected with the worm gear in an engaged mode is rotationally arranged in the mounting shell. Self-locking can be formed through meshing of the worm gear and the worm, it is ensured that the position of the gas detector body can be kept stable after being adjusted by the driving lead screw, and the phenomenon that the position of the gas detector body is changed due to the fact that the driving lead screw rotates under the influence of external vibration force is prevented.

Description

Technical Field

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

[0002] A combustible gas detector is an instrument used to monitor the presence of combustible gases in order to detect possible gas leaks or fire risks in a timely manner. The installation height of a combustible gas detector is specified as follows: when detecting gases such as hydrogen, natural gas, and city gas, which are lighter than air by weight, it is installed at a height of about one meter above the roof. When calibrating a combustible gas detector, the standard gas calibration method is usually adopted. A standard gas sample cylinder with a known concentration is placed at the sensor of the combustible gas detector, the combustible gas detector is started to work, the change in the reading of the combustible gas detector is monitored, and the detector is debugged and maintained according to the change in the reading.

[0003] It is found that a Chinese utility model patent with the publication number of CN220913090U discloses a debugging tool for a combustible gas detector, which includes a combustible gas detector main body and an installation connecting block fixedly installed at the rear side of the combustible gas detector main body; an adjusting mechanism is arranged on one side of the combustible gas detector main body to adjust the installation height of the installation connecting block. The adjusting mechanism includes two groups of installation blocks, and a guide rod is fixedly connected to the side of the two groups of installation blocks close to each other. By setting the adjusting mechanism, the device can adjust the height of the installation connecting block by rotating the rotating block on one side of the installation block, select a suitable working height for the combustible gas detector main body installed on the installation connecting block, make the installation more convenient, and can lower the combustible gas detector main body during debugging, so as to facilitate the maintenance and testing of subsequent functions. However, the threaded rod is connected to the installation connecting block through a bearing, and the threaded rod itself does not have a self-locking function. Although the height of the gas detector main body can be adjusted through the threaded rod, it is easy for the threaded rod to rotate under the influence of external vibration force, and then the adjusted gas detector changes, and the position of the adjusted gas detector main body cannot be fixed, affecting the later use.

[0004] Therefore, the utility model provides a debugging tool for a gas detector to solve the above problems. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The present utility model provides a debugging tool for a gas detector, aiming to solve the problems in the background technology that the existing threaded rod itself does not have a self-locking function. Although the height of the gas detector main body can be adjusted through the threaded rod, under the influence of external vibration force, the threaded rod is prone to rotate, resulting in a change in the adjusted gas detector and being unable to fix the position of the adjusted gas detector main body, etc.

[0007] (II) Technical solution

[0008] To achieve the above object, the present utility model provides the following technical solution: A debugging tool for a gas detector, including an adjustment component and a test component and a gas detector main body which are arranged on the adjustment component and used in cooperation;

[0009] Different from the existing debugging tools for gas detectors: The adjustment component includes a mounting block arranged on the opposite side of the test component and the gas detector main body. A driving lead screw is rotatably inserted on one side between the two mounting blocks, and a guide rod is fixedly connected on the other side between the two mounting blocks. A self-locking mechanism connected to the driving lead screw is arranged on one of the mounting blocks; The self-locking mechanism includes a mounting housing. A worm gear fixedly sleeved outside the end of the driving lead screw is rotatably installed inside the mounting housing. A worm meshed with the worm gear is rotatably arranged inside the mounting housing. A hand wheel is fixedly connected to the end of the worm; Self-locking can be formed through the meshing of the worm gear and the worm, ensuring that the position of the gas detector main body after being adjusted by the driving lead screw can be kept stable, preventing the phenomenon that the driving lead screw rotates automatically under the influence of external vibration force, resulting in a change in the position of the gas detector main body; At the same time, by utilizing the self-locking characteristic of the worm gear and worm mechanism, there is no need to additionally install an electromagnetic brake or other complex electronic braking systems to ensure the position fixation during shutdown, thereby simplifying the complexity and cost of the control system.

[0010] Preferably, the test component includes a test bottle, and a movable block sleeved outside the driving lead screw and the guide rod through a through hole is arranged at the bottom end of the test bottle.

[0011] Preferably, a locking screw in threaded connection with the outer wall of the guide rod is threadedly inserted on the movable block.

[0012] Preferably, an installation connecting block threadedly sleeved outside the driving lead screw through a thread groove is arranged at the bottom end of the gas detector main body, and the installation connecting block is sleeved outside the guide rod through a through hole.

[0013] Preferably, the mounting block is provided with a fixing component for fixing the position of the gas detector body, the fixing component includes a positioning plate fixedly connected to the mounting block and a movable clamping plate movably provided on the mounting block, a second fixing plate in contact with the positioning plate is fixedly connected to the gas detector body, a second clamping groove is provided at one end of the movable clamping plate facing the gas detector body, and a first fixing plate fixedly connected to the gas detector body is inserted into the second clamping groove; the fixing component can be used to realize rapid installation and disassembly of the gas detector body, facilitate replacement of the gas detector body, improve installation and disassembly efficiency, simplify installation and disassembly steps, and save a lot of time.

[0014] Preferably, a first clamping groove is formed at one end of the second fixing plate facing the positioning plate, and a clamping rod fixedly connected to the positioning plate is movably clamped in the first clamping groove.

[0015] Preferably, a baffle is fixedly connected to the top end of the positioning plate.

[0016] Preferably, the top of the installation connecting block is slidably sleeved with a limit rod fixedly connected to the bottom end of the movable clamping plate through a guide groove, and the inside of the installation connecting block is slidably sleeved with a limit slider fixedly connected to the bottom end of the limit rod through a limit groove, and a traction spring is fixedly connected between the end of the limit slider facing the gas detector body and the limit groove.

[0017] (III) Beneficial effects

[0018] The present application sets a self-locking mechanism, and the meshing of the worm gear and the worm can form a self-locking, thereby ensuring that the position of the gas detector body after the drive screw is adjusted can remain stable, and preventing the driving screw from rotating due to the influence of external vibration force, causing the position of the gas detector body to change; at the same time, by utilizing the self-locking characteristics of the worm gear mechanism, there is no need to install an additional electromagnetic brake or other complex electronic braking system to ensure the fixed position when the machine is stopped, thereby simplifying the complexity and cost of the control system;

[0019] The present application sets up a fixing component, which can be used to quickly install and disassemble the gas detector body, facilitate replacement of the gas detector body, improve installation and disassembly efficiency, simplify installation and disassembly steps, and save a lot of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a gas detector debugging tool;

[0021] Figure 2 This is a schematic diagram of the internal structure of the installation shell;

[0022] Figure 3 A side cross-sectional view of the internal structure of the installation block;

[0023] Figure 4 Schematic diagram of the connection structure between the gas detector main body and the first fixing plate and the second fixing plate;

[0024] Figure 5 Schematic diagram of the connection structure between the positioning plate, the clamping rod and the baffle plate;

[0025] Figure 6 Schematic diagram of the connection structure between the movable limiting rod, the limiting slider and the movable clamping plate.

[0026] In the figure:

[0027] 1. Adjusting assembly; 11. Mounting block; 12. Driving lead screw; 13. Guide rod; 14. Self-locking mechanism; 141. Mounting housing; 142. Worm gear; 143. Worm; 2. Testing assembly; 21. Testing bottle; 22. Movable block; 23. Locking screw; 3. Gas detector main body; 4. Mounting connecting block; 5. Fixing assembly; 51. First fixing plate; 52. Second fixing plate; 521. First card slot; 53. Positioning plate; 531. Clamping rod; 532. Baffle plate; 54. Movable clamping plate; 541. Second card slot; 55. Limiting rod; 56. Limiting slider; 57. Traction spring. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] The present invention provides a gas detector debugging tool, as Figure 1-6 shown, the debugging tool includes an adjusting assembly 1 and a testing assembly 2 and a gas detector main body 3 which are arranged on the adjusting assembly 1 and cooperate with each other;

[0031] The adjustment assembly 1 includes a mounting block 11 arranged on the opposite side of the test assembly 2 and the main body 3 of the gas detector. On one side between the two mounting blocks 11, a driving lead screw 12 is rotatably inserted. On the other side between the two mounting blocks 11, a guide rod 13 is fixedly connected. A self-locking mechanism 14 connected to the driving lead screw 12 is arranged on one of the mounting blocks 11; the self-locking mechanism 14 includes a mounting housing 141. Inside the mounting housing 141, a worm gear 142 fixedly sleeved on the outer end of the driving lead screw 12 is rotatably installed. Inside the mounting housing 141, a worm 143 meshed with the worm gear 142 is rotatably arranged. The end of the worm 143 is fixedly connected with a hand wheel; self-locking can be formed through the meshing of the worm gear 142 and the worm 143, ensuring that the position of the main body 3 of the gas detector after being adjusted by the driving lead screw 12 can be kept stable, preventing the phenomenon that the driving lead screw 12 rotates automatically under the influence of external vibration force, resulting in the change of the position of the main body 3 of the gas detector; at the same time, by utilizing the self-locking characteristic of the worm gear 142 and worm 143 mechanism, there is no need to additionally install an electromagnetic brake or other complex electronic braking systems to ensure the position fixation during shutdown, thus simplifying the complexity and cost of the control system.

[0032] During use, when it is necessary to adjust the position of the main body 3 of the gas detector, first hold the hand wheel, and then drive the worm 143 to rotate through the hand wheel, and the worm gear 142 and the driving lead screw 12 rotate. Since the main body 3 of the gas detector is threadedly connected to the driving lead screw 12, the main body 3 of the gas detector can be driven to move up and down through the cooperation of the driving lead screw 12 and the guide rod 13, and then the position of the main body 3 of the gas detector can be adjusted; when the worm 143 is rotated clockwise, the worm gear 142 drives the driving lead screw 12 to rotate clockwise, and at this time the main body 3 of the gas detector descends; when the worm 143 is rotated counterclockwise, the worm gear 142 drives the driving lead screw 12 to rotate counterclockwise, and at this time the main body 3 of the gas detector ascends.

[0033] Specifically, the test assembly 2 includes a test bottle 21. At the bottom end of the test bottle 21, a movable block 22 sleeved outside the driving lead screw 12 and the guide rod 13 through a through hole is arranged; during debugging, the main body 3 of the gas detector is moved down to the upper part of the test bottle 21 through the adjustment assembly 1. The test bottle 21 releases gas and enters the main body 3 of the gas detector, and then the dial indication and the alarm situation of the main body 3 of the gas detector are observed to test the main body 3 of the gas detector.

[0034] Furthermore, a locking screw 23 in threaded connection with the outer wall of the guide rod 13 is inserted into the movable block 22; through the cooperation of the locking screw 23 and the guide rod 13, it is convenient to move and lock the position of the movable block 22 on the adjustment assembly, and locking by means of threads can ensure the stability of the position of the test bottle 21 after adjustment.

[0035] At the bottom end of the gas detector main body 3, there is an installation connecting block 4 which is threadedly sleeved outside the driving lead screw 12 through a threaded groove, and the installation connecting block 4 is sleeved outside the guide rod 13 through a through hole.

[0036] Embodiment 2

[0037] Refer to the appendix Figure 3 , appendix Figure 4 , appendix Figure 5 and appendix Figure 6 As shown in the figures, a fixing component 5 for fixing the position of the gas detector main body 3 is arranged on the installation connecting block 4. The fixing component 5 includes a positioning plate 53 fixedly connected to the installation connecting block 4 and a movable clamping plate 54 movably arranged on the installation connecting block 4. A second fixing plate 52 in contact with the positioning plate 53 is fixedly connected to the gas detector main body 3. A second clamping groove 541 is formed at one end of the movable clamping plate 54 facing the gas detector main body 3, and a first fixing plate 51 fixedly connected to the gas detector main body 3 is inserted into the second clamping groove 541. A first clamping groove 521 is formed at one end of the second fixing plate 52 facing the positioning plate 53, and a clamping rod 531 fixedly connected to the positioning plate 53 is movably clamped in the first clamping groove 521. Through the cooperation of the clamping rod 531 and the first clamping groove 521, the position of the gas detector main body 3 can be guided and installed to ensure that the probe of the gas detector main body 3 always faces the direction of the mouth of the test bottle 21. A baffle 532 is fixedly connected to the top end of the positioning plate 53. Through the baffle 532, a slot can be formed between the baffle 532 and the positioning plate 53 to ensure that the second fixing plate 52 is stably inserted between the baffle 532 and the positioning plate 53. The top end of the installation connecting block 4 is slidably sleeved with a limiting rod 55 fixedly connected to the bottom end of the movable clamping plate 54 through a guiding groove, and the inside of the installation connecting block 4 is slidably sleeved with a limiting slider 56 fixedly connected to the bottom end of the limiting rod 55 through a limiting groove. A traction spring 57 is fixedly connected between one end of the limiting slider 56 facing the gas detector main body 3 and the limiting groove. The traction spring 57 is initially in a stretched and energy-storing state, and through the elastic force of the spring, the movable clamping plate 54 can be stably clamped outside the first fixing plate 51 to ensure the stability of the installation position of the gas detector body 1. The fixing component 5 can be used to quickly install and disassemble the gas detector main body 3, which is convenient for replacing the gas detector main body 3, improves the installation and disassembly efficiency, simplifies the installation and disassembly steps, and saves a lot of time.

[0038] Wherein, the limiting rod 55 is square-shaped, and all four edges are polished into arc-shaped surfaces. The movable clamping plate 54, the limiting rod 55 and the limiting slider 56 can be processed integrally to form an "I"-shaped plate.

[0039] In use, when the gas detector main body 3 needs to be disassembled, first hold the gas detector main body 3 and then move the gas detector main body 3 in a direction away from the test component 2. At this time, the gas detector main body 3 pushes the movable clamping plate 54 to move. The movable clamping plate 54 stretches the traction spring 57 through the limit rod 55 and the limit slider 56 to stretch and store energy. When the second fixed plate 52 on the gas detector main body 3 disengages from the positioning plate 53 and the baffle 532, at this time, the side of the gas detector main body 3 close to the positioning plate 53 is tilted up, and the gas detector main body 3 can be disassembled;

[0040] When the gas detector main body 3 needs to be installed, first insert the first fixed plate 51 on the gas detector main body 3 into the second card slot 541, and then move the gas detector main body 3 in a direction away from the test component 2. At this time, the gas detector main body 3 pushes the movable clamping plate 54 to move. The movable clamping plate 54 stretches the traction spring 57 through the limit rod 55 and the limit slider 56 to stretch and store energy. When the second fixed plate 52 on the gas detector main body 3 moves past the baffle 532, at this time, push the gas detector main body 3 in a direction close to the installation connecting block 4 to make the combustible gas detector main body 3 contact the installation connecting block 4. At this time, release the gas detector main body 3. At this time, under the contraction force of the traction spring 57, the gas detector main body 3 is pushed to move in a direction close to the test component 2, and then the second fixed plate 52 is inserted between the positioning plate 53 and the baffle 532 to complete the fixed installation of the gas detector main body 3.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A gas detector debugging tool, comprising an adjusting component (1), and a testing component (2) and a gas detector main body (3) which are arranged on the adjusting component (1) and used in cooperation; It is characterized in that: The adjusting component (1) includes a mounting block (11) arranged on the opposite side of the testing component (2) and the gas detector main body (3). One side between the two mounting blocks (11) is rotatably inserted with a driving lead screw (12), and the other side between the two mounting blocks (11) is fixedly connected with a guide rod (13). A self-locking mechanism (14) connected to the driving lead screw (12) is arranged on one of the mounting blocks (11); The self-locking mechanism (14) includes a mounting shell (141). Inside the mounting shell (141), a worm gear (142) fixedly sleeved outside the end of the driving lead screw (12) is rotatably installed. Inside the mounting shell (141), a worm (143) meshed with the worm gear (142) is rotatably arranged. The end of the worm (143) is fixedly connected with a hand wheel.

2. The gas detector debugging tool according to claim 1, wherein: The testing component (2) includes a testing bottle (21). At the bottom end of the testing bottle (21), a movable block (22) sleeved outside the driving lead screw (12) and the guide rod (13) through a through hole is arranged.

3. The gas detector debugging tool according to claim 2, characterized in that: A locking screw (23) in threaded connection with the outer wall of the guide rod (13) is inserted into the movable block (22).

4. The gas detector debugging tool according to claim 1, characterized in that: At the bottom end of the gas detector main body (3), a mounting connecting block (4) threadedly sleeved outside the driving lead screw (12) through a thread groove is arranged. The mounting connecting block (4) is sleeved outside the guide rod (13) through a through hole.

5. The gas detector debugging tool according to claim 4, wherein: A fixing component (5) for fixing the position of the gas detector main body (3) is arranged on the mounting connecting block (4). The fixing component (5) includes a positioning plate (53) fixedly connected to the mounting connecting block (4) and a movable clamping plate (54) movably arranged on the mounting connecting block (4). A second fixing plate (52) in contact with the positioning plate (53) is fixedly connected to the gas detector main body (3). A second clamping groove (541) is formed at one end of the movable clamping plate (54) facing the gas detector main body (3). A first fixing plate (51) fixedly connected to the gas detector main body (3) is inserted into the second clamping groove (541).

6. The gas detector debugging tool according to claim 5, characterized in that: A first clamping groove (521) is formed at one end of the second fixing plate (52) facing the positioning plate (53). A clamping rod (531) fixedly connected to the positioning plate (53) is movably clamped in the first clamping groove (521).

7. The gas detector debugging tool according to claim 5, characterized in that: A baffle (532) is fixedly connected to the top end of the positioning plate (53).

8. The gas detector debugging tool according to claim 5, characterized in that: At the top end of the mounting connecting block (4), a limiting rod (55) fixedly connected to the bottom end of the movable clamping plate (54) is slidably sleeved through a guiding groove. Inside the mounting connecting block (4), a limiting slider (56) fixedly connected to the bottom end of the limiting rod (55) is slidably sleeved through a limiting groove. A traction spring (57) is fixedly connected between one end of the limiting slider (56) facing the gas detector main body (3) and the limiting groove.

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