Composite gas detection device
By using anti-collision mechanism and protective mechanism in the composite gas detection device, the problems of insufficient pollution and applicability of the collection head are solved, and the stability and protection performance of the collection head are improved, ensuring the accuracy of gas detection and the device Long-lasting.
Patent Information
- Application Number
- CN202421308545.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing composite gas detection device is prone to bend and deformed in the gas inlet pipe, resulting in contamination of the collection head, and the limiting half-ring structure cannot be suitable for collection heads of different sizes, which reduces the practicality of the device.
Anti-collision mechanism is adopted, including arc-shaped plastic buckle plates, compression springs and balls, to ensure smooth movement of the collection head in the pipeline and avoid contact with the inner wall of the pipeline; at the same time, a protective mechanism is set up, including threaded covers, reinforcement layers, sealing layers, and moisture-absorbing layers. , fill layer and heat insulation layer to improve the protection effect and sealing of the device.
Effectively prevents contamination of the collection head, is suitable for pipes of different sizes, improves the gas collection effect, and improves the protective performance and sealing of the device through the protective layer, extending the service life.
Smart Images
Figure CN222212733U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas detection, and more specifically, to a composite gas detection device. Background Art
[0002] The composite gas detection device can detect the concentration of hydrogen sulfide, carbon monoxide, sulfur dioxide, oxygen and combustible gas. At the scene of leakage accident, occupational health site or chemical laboratory, a composite gas detection device is needed to detect whether there is oil-containing toxic and harmful gas. The existing composite gas detection device is easy to bend and deform in the gas introduction pipe, which makes it easy for the collection head to be contaminated by impurities on the inner wall of the pipe, and the impurities are sucked into the gas introduction pipe, resulting in contamination of the collection head, thereby causing errors in the detection data.
[0003] After searching, a Chinese patent with publication number CN111983139A discloses a composite gas detection device, which is elastically connected to a first limiting semi-ring or a second limiting semi-ring through a guide slider. The guide slider approaches or moves away from the collection head along the radial direction of the limiting ring, and a rolling surface is formed on the side of the guide slider away from the collection head. By setting an anti-collision structure, the collection head is prevented from contacting the inner wall of the pipeline to avoid contamination.
[0004] However, the above device may have the following problems during use: when the structure clamps the collection head, the connecting plate and the collection head cannot be fixed, and the external limiting half ring cannot be applied to collection heads of different sizes, which reduces the practicality of the device. Utility Model Content
[0005] In order to overcome the above defects of the prior art, the utility model provides a composite 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] A composite gas detection device comprises a gas detector, a display screen is arranged on one side of the gas detector, a button is arranged below the display screen, a gas inlet pipe is arranged on the top of the gas detector, a collection head is arranged at one end of the gas inlet pipe, a protective mechanism is arranged on the outside of the collection head, one end of the collection head is slidably connected with a pipeline, and an anti-collision mechanism is arranged inside the pipeline; the anti-collision mechanism comprises two buckled plastic buckle plates arranged in the pipeline, the plastic buckle plates are arc-shaped, an arc-shaped connecting plate is respectively arranged on both sides of the plastic buckle plates, a compression spring is arranged between the plastic buckle plates and the adjacent arc-shaped connecting plates, and the two ends of the compression spring are respectively fixed to the plastic buckle plates and the arc-shaped connecting plates; a ball is fixed on the outer side of the arc-shaped connecting plate, and the ball rests on the inner wall of the pipeline; a plurality of friction rods are arranged in the plastic buckle plate, and a rubber pad is arranged on the surface of the friction rod, and the two plastic buckle plates are fixed by fasteners; the above technical scheme is adopted to improve the effect of gas collection of the device.
[0008] As a further description of the above technical solution: the protection mechanism includes a threaded cover threadedly connected to the outside of the collection head 5, the interior of the threaded cover is provided with a reinforcement layer, and one side of the reinforcement layer is provided with a sealing layer; a protection tube is provided between the introduction tube and the collection head, and fixing plates are provided on both sides of the protection tube; the two fixing plates are threadedly connected to the introduction tube and the collection head respectively by bolts; the outside of the protection tube is provided with a moisture absorption layer and a filling layer in sequence, and the inside of the protection tube is provided with a heat insulation layer and a thermal insulation layer in sequence. The above technical solution is adopted to improve the protection effect of the device.
[0009] Technical effects and advantages of the utility model:
[0010] By setting an anti-collision mechanism, the collection head is installed inside the plastic buckle plate and connected and fixed by stud bolts to prevent the collection head from falling inside the plastic buckle. When the friction rod on the surface of the plastic buckle plate contacts the collection head, the friction between the collection head and the collection head can be increased, and then the plastic buckle plate is driven by the compression spring to be squeezed, so that it can be suitable for pipes of different sizes. After the collection head is subjected to force, the rolling ball rolls inside the pipe, driving the entire collection head to move smoothly in the pipe, so that the collection head will not contact the inner wall of the pipe when it is in the pipe, thereby avoiding contamination of the collection head;
[0011] By setting up a protective mechanism, when the collection head is not needed, the threaded cover is threadedly connected to the collection head to prevent the surface of the collection head from being contaminated when not in use, which will affect the use of the mechanism next time. The reinforcing layer and sealing layer inside the threaded cover can protect the shell to enhance the compressive strength, and can make the sealing effect of the device better, slow down the oxidation rate of the port, so that the protective shell is not easy to deform when under pressure and improve the protective effect. Then it can be protected by a protective tube, and the external filling layer can seal the protective tube; when in use, the hygroscopic layer can absorb water vapor outside the water pipe port, which can prevent the water pipe port from rust, and the heat insulation layer can reduce the influence of the external temperature on the water pipe port, thereby improving the protective effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0013] Figure 2 It is a schematic diagram of the anti-collision structure of the utility model.
[0014] Figure 3 This is a schematic diagram of the reinforcement layer structure of the utility model.
[0015] Figure 4 It is a schematic diagram of the moisture absorption layer structure of the utility model.
[0016] Figure 5 It is a side structural schematic diagram of the utility model.
[0017] The accompanying drawings are marked as follows: 1. gas detector; 2. display screen; 3. button; 4. gas inlet pipe; 5. collection head; 6. pipeline; 7. ball bearing; 8. connecting plate; 9. compression spring; 10. plastic buckle; 11. stud bolt; 12. insulation layer; 13. friction rod; 14. threaded cover; 15. reinforcement layer; 16. sealing layer; 17. protective tube; 18. fixing plate; 19. bolt; 20. moisture absorption layer; 21. filling layer; 22. insulation layer. DETAILED DESCRIPTION
[0018] 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 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 of 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.
[0019] Example 1
[0020] The present application embodiment discloses Figure 1 , Figure 2 and Figure 5 A composite gas detection device is shown, specifically comprising a gas detector 1, a display screen 2 is provided on one side of the gas detector 1, a button 3 is provided below the display screen 2, a gas inlet pipe 4 is provided on the top of the gas detector 1, a collection head 5 is provided at one end of the gas inlet pipe 4, a protective mechanism is provided on the outside of the collection head 5, a pipe 6 is slidably connected to one end of the collection head 5, and an anti-collision mechanism is provided inside the pipe 6; the anti-collision mechanism comprises two buckled plastic buckle plates 10 arranged in the pipe 6, the plastic buckle plates 10 are arc-shaped, and an arc is provided on each side of the plastic buckle plate 10. The arc-shaped connecting plate 8 is provided with a compression spring 9 between the plastic gusset plate 10 and the adjacent arc-shaped connecting plate 8, and the two ends of the compression spring 9 are respectively fixed on the plastic gusset plate 10 and the arc-shaped connecting plate 8; the outer side of the arc-shaped connecting plate 8 is fixed with a ball 7, and the ball 7 is against the inner wall of the pipe 6; a plurality of friction rods 13 are provided in the plastic gusset plate 10, and a rubber pad is provided on the surface of the friction rod 13. The two plastic gusset plates 10 are fixed by fasteners. In this embodiment, the two plastic gusset plates 10 are preferably fastened by stud bolts and nuts to prevent the collection head 5 from falling inside the plastic gusset plate 10. During the assembly process of the pipe 6, the inner wall squeezes the ball 7 set on the arc-shaped connecting plate 8 and the compression spring 9, so that the pipe 6 can be installed smoothly. During the collection process, pipes of different sizes can be replaced according to different environments to meet the collection needs. When the collection head 5 is in the pipe 6, it will not contact the inner wall of the pipe 6, thereby avoiding contamination of the collection head 5 and improving the effect of the device in collecting gas next time.
[0021] like Figure 3 and Figure 4 As shown, the protection mechanism includes a threaded cover 14 threadedly connected to the outside of the collection head 5.
[0022] The working principle of the utility model is as follows: when the collection head 5 of the device needs to be used, the threaded cover 14 is disassembled from the collection head 5, and the threaded cover 14 is threadedly connected to the collection head 5 to prevent the surface of the collection head 5 from being contaminated when not in use, which affects the use of the mechanism next time. Then the collection head 5 is installed inside the two plastic gusset plates 10, and the two plastic gusset plates 10 are connected and fixed by stud bolts 11, so that the collection head 5 is connected between the two plastic gusset plates 10 to prevent the collection head 5 from falling inside the plastic gusset plates 10. Then, when the friction rod 13 on the surface of the plastic gusset plates 10 contacts the collection head 5, the friction between the two plastic gusset plates 10 and the collection head 5 can be improved. The friction between them ensures the stability of the collection head 5, so that when the internal collection head 5 needs to be moved, one end of the collection head 5 is slowly pulled to move the position between the plastic buckle plates 10, and the position of the collection head 5 is adjusted. The arc-shaped connecting plate 8 is driven by the compression spring 9 to squeeze the pipe 6, so that it can be suitable for pipes 6 of different sizes. The ball 7 is installed on the arc-shaped connecting plate 8 to roll inside the pipe 6, which is convenient for smooth installation in the pipe 6. During the collection process, the collection head 5 will not contact the inner wall of the pipe 6 when it is in the pipe 6, thereby avoiding contamination of the collection head 5 and improving the effect of the device in collecting gas next time.
[0023] Example 2
[0024] like Figure 3 and Figure 4 As shown, the difference between this embodiment and embodiment 1 is that: a reinforcing layer 15 is provided inside the threaded cover 14, and a sealing layer 16 is provided on one side of the reinforcing layer 15; a protective tube 17 is provided between the introduction tube 4 and the collection head 5, and fixing plates 18 are provided on both sides of the protective tube 17; the two fixing plates 18 are threadedly connected to the introduction tube 4 and the collection head 5 respectively through bolts 19; a moisture absorption layer 20 and a filling layer 21 are provided on the outside of the protective tube 17 in sequence, and a heat insulation layer 22 and a thermal insulation layer 12 are provided on the inside of the protective tube 17 in sequence. The threaded cover 14 and the collection head 5 are disassembled, and the threaded cover 14 is threadedly connected to the collection head 5 to prevent the surface of the collection head 5 from being contaminated when not in use, which affects the use of the mechanism next time. The reinforcing layer 15 and the sealing layer 16 inside the threaded cover 14 can protect the shell to enhance the compressive strength, and can make the sealing effect of the device better, slow down the oxidation rate of the port, so that the protective shell is not easy to deform when under pressure and improve the protection effect. Then it can be protected by the protective tube 17, and the external filling layer 21 can seal the protective tube 17; when in use, the hygroscopic layer 20 can absorb the water vapor outside the water pipe port, which can prevent the water pipe port from rusting, and the heat insulation layer 22 can reduce the influence of the external temperature on the water pipe port, thereby improving the protection effect of the device.
[0025] When the collection head 5 and the gas introduction pipe 4 are not needed, the reinforcing layer 15 and the sealing layer 16 inside the threaded cover 14 can protect the shell to enhance the compressive strength, and can make the sealing effect of the device better, slow down the oxidation rate of the port, so that the protective shell is not easy to deform when under pressure and improve the protection effect, and then it can be protected by the protective tube 17, and the external filling layer 21 can seal the protective tube 17; when in use, the hygroscopic layer 20 can absorb water vapor outside the water pipe port, and can prevent the water pipe port from rust, and the heat insulation layer 22 can reduce the influence of the external temperature on the water pipe port, thereby improving the protection effect of the device.
[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A composite gas detection device, comprising a gas detector (1), Features: A display screen (2) is provided on one side of the gas detector (1), a button (3) is provided below the display screen (2), a gas introduction pipe (4) is provided on the top of the gas detector (1), a collection head (5) is provided at one end of the gas introduction pipe (4), a protective mechanism is provided on the outside of the collection head (5), a pipe (6) is slidably connected to one end of the collection head (5), and an anti-collision mechanism is provided inside the pipe (6).
2. The composite gas detection device according to claim 1, Features: The anti-collision mechanism comprises two buckled plastic buckle plates (10) arranged in the pipe (6); the plastic buckle plates (10) are arc-shaped; an arc-shaped connecting plate (8) is respectively provided on both sides of the plastic buckle plate (10); a compression spring (9) is provided between the plastic buckle plate (10) and the adjacent arc-shaped connecting plate (8); the two ends of the compression spring (9) are respectively fixed to the plastic buckle plate (10) and the arc-shaped connecting plate (8); a ball (7) is fixed to the outer side of the arc-shaped connecting plate (8); the ball (7) abuts against the inner wall of the pipe (6).
3. The composite gas detection device according to claim 2, Features: A plurality of friction rods (13) are arranged inside the plastic gusset plate (10), and rubber pads are arranged on the surfaces of the friction rods (13). The two plastic gusset plates (10) are fixed by fasteners.
4. The composite gas detection device according to claim 1, Features: The protection mechanism comprises a threaded cover (14) threadably connected to the outside of the collection head (5), a reinforcement layer (15) being provided inside the threaded cover (14), and a sealing layer (16) being provided on one side of the reinforcement layer (15).
5. The composite gas detection device according to claim 1, Features: A protective tube (17) is provided between the introduction tube (4) and the collection head (5), and fixing plates (18) are provided on both sides of the protective tube (17).
6. The composite gas detection device according to claim 5, Features: The two fixing plates (18) are respectively threadedly connected to the introduction pipe (4) and the collection head (5) via bolts (19).
7. The composite gas detection device according to claim 5, Features: The outside of the protection tube (17) is provided with a moisture absorbing layer (20) and a filling layer (21) in sequence, and the inside of the protection tube (17) is provided with a heat insulating layer (22) and a thermal insulation layer (12) in sequence.