A combustible gas detector alarm suitable for industrial and commercial use

Abstract

This utility model discloses a combustible gas detector alarm suitable for industrial and commercial use, including a dustproof shell connected to a gas detector. The top of the dustproof shell has a connection port, and a connecting frame is fixedly connected inside the connection port. A filter shell is fixed inside the dustproof shell by two pin assemblies, and the top of the filter shell is in contact with the bottom of the connecting frame. The detection head of the gas detector is located inside the filter shell. The pin assembly includes two guide rods, which are slidably connected to one side of the dustproof shell. A locking block is fixedly connected between the ends of the two guide rods that extend into the dustproof shell. One side of the locking block has two corresponding upper and lower inclined surfaces. A spring is sleeved on the outer side of the guide rod. This utility model not only protects the detection end of the gas detector through the filter shell, but also facilitates the installation and removal of the filter shell by the staff through the pin assembly.

Description

Technical Field

[0001] This utility model relates to the field of gas detection technology, and in particular to a combustible gas detection alarm suitable for industrial and commercial use. Background Technology

[0002] A combustible gas detection alarm device is a device used to detect the content of combustible gas in the air in real time and to sound an alarm when the content of combustible gas in the air reaches a specified value. For example, Chinese Patent No. CN220397022U discloses a combustible gas detection alarm that is easy to install and remove, including a mounting plate. Two connecting plates are fixedly connected to one side of the mounting plate, which addresses the problem of low work efficiency for operators.

[0003] However, the existing technology does not take into account that dust and oil stains in industrial and commercial environments can fall onto the combustible gas detector and cover the detection head, thus reducing its detection efficiency. In order to better address the above problems, promote the development of industry technology, and improve core competitiveness, this application proposes a new composition structure that is different from the existing technology. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where dust and oil in industrial environments fall onto combustible gas detectors and cover the detection head. Therefore, this invention proposes a combustible gas detector suitable for industrial and commercial applications.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A combustible gas detector alarm suitable for industrial and commercial use includes a dustproof housing connected to a gas detector. The top of the dustproof housing has a connection port, and a connecting frame is fixedly connected inside the connection port. A filter shell is fixed inside the dustproof housing by two pin assemblies, and the top of the filter shell is in contact with the bottom of the connecting frame. The detection head of the gas detector is located inside the filter shell.

[0007] As a further embodiment of this utility model, the pin assembly includes two guide rods, which are slidably connected to one side of the dustproof shell. A locking block is fixedly connected between the ends of the two guide rods that extend into the dustproof shell. One side of the locking block has two corresponding upper and lower inclined surfaces. A spring is sleeved on the outer side of the guide rod, and the two ends of the spring are fixed to the dustproof shell and the locking block, respectively. Both outer walls of the filter shell are fixedly connected with protrusions, and grooves are formed in the protrusions. The locking block is inserted into the grooves.

[0008] As a further embodiment of this utility model, a connecting plate is fixedly connected between the ends of the two guide rods extending out of the dustproof shell.

[0009] As a further embodiment of this utility model, two second limiting plates are fixedly connected to the inner walls of both sides of the dustproof shell, and two first limiting plates are fixedly connected to the inner walls of the other two sides of the dustproof shell.

[0010] As a further improvement of this utility model, a first inclined surface is provided on one side of each of the two second limiting plates and the first limiting plate.

[0011] As a further embodiment of this utility model, the filter housing includes a base, which is a rigid rock wool board. An oil-resistant layer is provided on the outer side of the base, and an interlayer is formed inside the base, with polypropylene meltblown nonwoven fabric embedded between the interlayers.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model protects the detection end of the gas detector by using a filter shell, preventing dust and oil from adhering to the detection end of the gas detector and affecting the detection effect, thus improving the protection effect of the device.

[0014] 2. The pin assembly facilitates the installation and removal of the filter housing by staff, which in turn facilitates cleaning and maintenance of the filter housing, thus improving the convenience of the device.

[0015] 3. This utility model, by providing a first inclined surface on the first limiting plate and the second limiting plate, assists the operator in positioning and installing the filter housing, avoiding the time-consuming and labor-intensive process of repeatedly adjusting the installation position, and improving the installation efficiency of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a combustible gas detection alarm suitable for industrial and commercial use, as proposed in this utility model.

[0017] Figure 2 This is a partial cross-sectional view of a combustible gas detection alarm device suitable for industrial and commercial use proposed in this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the dustproof housing of a combustible gas detection alarm device suitable for industrial and commercial use, as proposed in this utility model.

[0019] In the diagram: 4. Dustproof shell; 5. Connecting frame; 6. First limiting plate; 7. Filter shell; 8. First inclined surface; 9. Second limiting plate; 10. Gas detector; 11. Connecting plate; 12. Guide rod; 13. Spring; 14. Protrusion; 15. Groove; 16. Locking block; 17. Second inclined surface. Detailed Implementation

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0021] Reference Figures 1-3 A combustible gas detector alarm suitable for industrial and commercial use includes a dust cover 4 threadedly connected to a gas detector 10. The gas detector 10 is model GTY-RT007 and can detect hydrocarbon gases such as methane.

[0022] The dust cover 4 is a bottomless frame structure. The top of the dust cover 4 has a connection port, and the connection frame 5 is fixed in the connection port by bolts. The filter shell 7 is fixed inside the dust cover 4 by two pin assemblies. The filter shell 7 uses a rigid rock wool board with a density of 100-200kg / m³ as the base. Its three-dimensional interwoven fiber structure can intercept dust particles (>10μm) and provide mechanical strength.

[0023] The oil-resistant coating can be selected from either fluorocarbon coating or sol-gel ceramic coating, which can reduce the amount of oil and dust deposits;

[0024] The oil-resistant layer can be made of PVC or PET rigid membrane. A PVC or PET rigid membrane with a thickness of 0.1-0.5mm is formed on the outer surface of the filter housing 7 using a vacuum forming process. Its oleophobic properties prevent oil from adhering.

[0025] Polypropylene meltblown nonwoven fabric with a pore size of 5-20 μm is embedded between the layers of the substrate. This fabric can absorb 10-20 times its own weight in oil and is non-absorbent. The interlayer has pre-reserved directional pores >0.5 μm to ensure that methane molecules (0.414 nm in diameter) can freely permeate, avoiding obstruction of gas detection.

[0026] A rubber pad is glued to the bottom of the connecting frame 5, and the top of the filter housing 7 contacts the bottom of the connecting frame 5. The rubber pad can prevent dust from entering. The detection head of the gas detector 10 is located inside the filter housing 7. The filter housing 7 protects the detection end of the gas detector 10 to prevent oil stains from adhering to the detection end of the gas detector 10 and affecting the detection effect.

[0027] It should be noted that the pin assembly includes two guide rods 12, which are slidably connected to one side of the dust cover 4. The pin assembly facilitates the installation and removal of the filter housing 7 by the staff. The two guide rods 12 are fixed with a locking block 16 by bolts between the ends of the two guide rods 12 that extend into the dust cover 4. The locking block 16 has two corresponding upper and lower inclined surfaces 17 on one side. A spring 13 is sleeved on the outside of the guide rods 12, and the two ends of the spring 13 are fixed to the dust cover 4 and the locking block 16 respectively. Both outer walls of the filter housing 7 are integrally formed with protrusions 14, and grooves 15 are formed in the protrusions 14. The locking block 16 is inserted into the grooves 15.

[0028] A connecting plate 11 is welded between the ends of the two guide rods 12 extending out of the dust cover 4. Pulling the connecting plate 11 causes the guide rods 12 to move the locking block 16 until it moves out of the groove 15, and the spring 13 contracts. Then, the filter shell 7 is pulled down to separate it from the connecting frame 5 until it is completely removed from the dust cover 4, thus completing the disassembly and facilitating subsequent cleaning and maintenance.

[0029] In particular, two second limiting plates 9 are integrally formed on both sides of the inner wall of the dust cover 4, and two first limiting plates 6 are integrally formed on the other two sides of the inner wall of the dust cover 4. A first inclined surface 8 is provided on one side of the two second limiting plates 9 and the first limiting plates 6. The positioning of the first limiting plates 6 and the second limiting plates 9 assists the staff in positioning and installing the filter shell 7 so that it is in the middle position.

[0030] Working principle: In use, connect the two ends of the gas detector 10 to the gas supply pipe and the gas stove connection pipe respectively, so that the gas detector 10 can detect combustible gas. When the concentration exceeds the preset threshold, an audible and visual alarm is triggered. The filter housing 7 protects the detection end of the gas detector 10 to prevent oil stains from adhering to the detection end of the gas detector 10 and affecting the detection effect. When it is necessary to disassemble the filter housing 7, pull the connecting plate 11, so that the guide rod 12 drives the locking block 16 to move until it moves out of the groove 15 and the spring 13 retracts. Then pull the filter housing 7 down to separate it from the connecting frame 5 until it is completely removed from the dust cover 4, thus completing the disassembly and facilitating subsequent cleaning and maintenance.

[0031] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combustible gas detection alarm suitable for commercial and industrial use comprising a dust tight housing (4) to which is connected a gas detector (10) characterised in that, The top of the dustproof shell (4) has a connection port, and a connecting frame (5) is fixedly connected inside the connection port. The filter shell (7) is fixed inside the dustproof shell (4) by two pin assemblies, and the top of the filter shell (7) is in contact with the bottom of the connecting frame (5). The detection head of the gas detector (10) is located inside the filter shell (7).

2. A combustible gas detection alarm for commercial and industrial use according to claim 1, wherein The pin assembly includes two guide rods (12), which are slidably connected to one side of the dust cover (4). A locking block (16) is fixedly connected between the ends of the two guide rods (12) that extend into the dust cover (4). Two corresponding second inclined surfaces (17) are provided on one side of the locking block (16). A spring (13) is sleeved on the outside of the guide rod (12), and the two ends of the spring (13) are fixed to the dust cover (4) and the locking block (16) respectively. Both sides of the filter shell (7) are fixedly connected to protrusions (14). A groove (15) is provided in the protrusion (14), and the locking block (16) is inserted into the groove (15).

3. A combustible gas detection alarm for commercial and industrial use according to claim 2, wherein A connecting plate (11) is fixedly connected between the ends of the two guide rods (12) that extend out of the dust cover (4).

4. A combustible gas detector alarm suitable for industrial and commercial use according to claim 1, characterized in that, Two second limiting plates (9) are fixedly connected to the inner walls of both sides of the dustproof shell (4), and two first limiting plates (6) are fixedly connected to the inner walls of the other two sides of the dustproof shell (4).

5. A combustible gas detection alarm for commercial and industrial use according to claim 4, wherein A first inclined surface (8) is provided on one side of each of the two second limiting plates (9) and the first limiting plate (6).

6. A combustible gas detection alarm for commercial and industrial use according to claim 1, wherein The filter housing (7) includes a base, which is a rigid rock wool board. An oil-proof layer is provided on the outside of the base, and an interlayer is provided inside the base, with polypropylene meltblown nonwoven fabric embedded between the interlayers.

Images