Combustible gas alarm detector

Abstract

The utility model relates to the technical field of alarm detectors, in particular to a combustible gas alarm detector. The alarm detector comprises an alarm detector body, an air inlet pipe and a shell, the air inlet pipe is installed at the bottom of the alarm detector body, a screw groove is formed in the bottom of the air inlet pipe, a screw head is fixed to the top of the shell, the screw head is in threaded connection with the interior of the screw groove, and a through opening is formed in the bottom of the shell in a penetrating mode. According to the detector, dust in air entering the detector can be filtered in a multi-layer mode, the filtering effect is good, dust entering the detector can be effectively reduced, meanwhile, the filtering assembly can be conveniently and rapidly assembled and disassembled, a user can conveniently disassemble and clean the filtering assembly, the detection effect on combustible gas is improved, and the detection efficiency is improved. According to the combustible gas alarm detector, the problem that the combustible gas detection effect is reduced due to the fact that a filtering assembly of an existing combustible gas alarm detector is inconvenient to disassemble and clean by a user is solved.

Description

Technical Field

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

[0002] An alarm detector is an instrument used to detect gas leaks. When flammable or toxic gases leak in industrial environments, the gas alarm detects that the gas concentration has reached the critical point set by the explosion or poisoning alarm. The alarm will then emit audible and visual alarm signals to remind workers to take safety measures. It will also activate exhaust, power cuts, and sprinkler systems to prevent explosions, fires, and poisoning accidents, thereby ensuring safe production.

[0003] When current alarm detectors detect combustible gases, they enhance the detection effect of combustible gases in the air by improving air circulation. For example, the existing Chinese patent application number: CN201721046422.8 discloses a high-sensitivity combustible gas alarm detector. This solution can improve air circulation and adopt a buffer pump to provide sufficient detection time, thereby enhancing detection efficiency. At the same time, a filtering device is also provided to isolate most of the dust, thereby increasing the service life of the detector. At the same time, the operator does not need to clean the detector frequently, saving labor costs.

[0004] Current combustible gas alarm detectors are generally of an integrated design, and are usually equipped with a filter device inside to block dust. Since the filter device is installed inside the detector housing, it is inconvenient for users to disassemble and clean the filter component. When the alarm detector is used for a long time, a large amount of dust is likely to adhere to the filter component inside it. This dust will affect the normal circulation of the gas, thereby reducing the detection effect of combustible gas. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the current combustible gas alarm detector is inconvenient for users to disassemble and clean the filter assembly, thereby reducing the combustible gas detection effect, and to propose a combustible gas alarm detector.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A combustible gas alarm detector is designed, comprising an alarm detector body, an air intake pipe, and a housing. The air intake pipe is mounted at the bottom of the alarm detector body. A screw groove is provided at the bottom of the air intake pipe. A screw head is fixed to the top of the housing, and the screw head is threadedly connected to the inner thread of the screw groove. A through opening is provided through the bottom of the housing, and a filter mechanism for blocking dust is provided inside the housing.

[0008] The filtering mechanism includes a metal ring, a connecting rod, a filter screen and a magnetic ring. There are two metal rings. The filter screen is fixed inside the metal ring. The connecting rod is fixed between the two metal rings. The magnetic ring is fixed inside the shell. The metal ring is magnetically connected to the magnetic ring.

[0009] Furthermore, pull rods are fixed on both sides of the top of the metal ring, and the two pull rods are symmetrically designed.

[0010] By adopting the above technical solution, when the filter assembly needs to be taken out for cleaning, the setting of the pull rod can facilitate the user to apply force to take out the filter assembly.

[0011] Furthermore, mounting plates are fixed in pairs on both sides of the alarm detector body, and mounting holes are formed through the surfaces of the mounting plates.

[0012] By adopting the above technical solution and arranging the mounting plate and the mounting holes, the combustible gas alarm detector can be easily installed.

[0013] Furthermore, an anti-slip cover is fixed on the shell, and the surface of the anti-slip cover is a rough surface.

[0014] By adopting the above technical solution, the anti-slip sleeve can play a protective role, so that the user can apply force to rotate the shell, thereby facilitating the removal of the shell and the filter assembly installed therein from the air intake pipe.

[0015] Furthermore, a protective film is provided on the display screen on the surface of the alarm detector body, and the protective film is made of PVC material.

[0016] By adopting the above technical solution and setting a protective film, the display screen of the alarm detector can be protected to prevent the screen surface from being scratched by foreign objects. At the same time, the PVC material has good light transmittance, ensuring the clarity of users when viewing the display screen.

[0017] Furthermore, the inner diameter of the shell is larger than the outer diameter of the metal ring, and the metal ring is movably connected to the inner wall of the shell.

[0018] By adopting the above technical solution, the inner diameter of the shell is slightly larger than the outer diameter of the metal ring, so that the metal ring can be placed inside the shell.

[0019] In summary, the present application includes at least one of the following beneficial effects:

[0020] 1. This application can perform multi-layer filtration on the dust in the air entering the detector through the arrangement of the shell, screw groove, screw head and filtering mechanism. Compared with the traditional single-layer filtration, the filtering effect is good, and the dust can be effectively reduced from entering the interior of the detector, indirectly improving the service life of the combustible gas alarm detector. At the same time, it can also facilitate users to quickly install and disassemble the filter component, thereby facilitating users to disassemble and clean the filter component. The operation is simple and easy to use, which brings great convenience to users and prevents a large amount of dust from adhering to the filter component, causing the gas to be unable to flow smoothly in the alarm detector, thereby improving the detection effect of combustible gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the combustible gas alarm detector in the present utility model;

[0022] Figure 2 This is a schematic structural diagram of the air intake pipe in the present invention;

[0023] Figure 3 This is a schematic structural diagram of the screw head in the utility model;

[0024] Figure 4 This is a schematic structural diagram of the housing in the present invention;

[0025] Figure 5 It is a structural diagram of the filtering mechanism in the present utility model.

[0026] In the figure: 1. Alarm detector body; 2. Air inlet pipe; 3. Shell; 4. Screw groove; 5. Screw head; 6. Through port; 7. Filter mechanism; 71. Metal ring; 72. Connecting rod; 73. Filter screen; 74. Magnetic ring; 8. Pull rod; 9. Mounting plate; 10. Mounting hole; 11. Anti-slip sleeve; 12. Protective film. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figure 1-5 A combustible gas alarm detector includes an alarm detector body 1, an air inlet pipe 2, and a shell 3. The air inlet pipe 2 is installed at the bottom of the alarm detector body 1. A screw groove 4 is provided at the bottom of the air inlet pipe 2. A screw head 5 is fixed to the top of the shell 3. The screw head 5 is connected to the internal thread of the screw groove 4. A through hole 6 is provided at the bottom of the shell 3. A filter mechanism 7 for blocking dust is provided inside the shell 3.

[0029] The filter mechanism 7 includes a metal ring 71, a connecting rod 72, a filter screen 73 and a magnetic ring 74. There are two metal rings 71. The filter screen 73 is fixed inside the metal ring 71. The connecting rod 72 is fixed between the two metal rings 71. The magnetic ring 74 is fixed inside the shell 3. The metal ring 71 is magnetically connected to the magnetic ring 74. The combustible gas alarm detector can perform multi-layer filtration on the dust in the air entering the detector through the arrangement of the shell 3, the screw groove 4, the screw head 5 and the filter mechanism 7. The filtering effect is good, and the dust can be effectively reduced from entering the interior of the detector, indirectly improving the service life of the combustible gas alarm detector. At the same time, it can also facilitate users to quickly assemble and disassemble the filter assembly, thereby facilitating users to disassemble and clean the filter assembly. The operation is simple and easy to use, which brings great convenience to users and prevents a large amount of dust from adhering to the filter assembly, causing the gas to be unable to flow smoothly in the alarm detector, thereby improving the detection effect of combustible gas.

[0030] Reference Figure 4 Pull rods 8 are fixed on both sides of the top of the metal ring 71, and the two pull rods 8 are symmetrically designed. More specifically, when the filter assembly needs to be removed for cleaning, the setting of the pull rods 8 can facilitate the user to apply force to remove the filter assembly.

[0031] Reference Figure 1 Mounting plates 9 are fixed in pairs on both sides of the alarm detector body 1, and mounting holes 10 are opened through the surface of the mounting plates 9. More specifically, the arrangement of the mounting plates 9 and the mounting holes 10 facilitates the installation of the combustible gas alarm detector.

[0032] Reference Figure 1 A non-slip cover 11 is fixed on the shell 3, and the surface of the non-slip cover 11 is a rough surface. More specifically, the setting of the non-slip cover 11 can play a protective role, so that the user can apply force to rotate the shell 3, thereby facilitating the removal of the shell 3 and the filter assembly installed therein from the intake pipe 2.

[0033] Reference Figure 1 A protective film 12 is provided on the display screen on the surface of the alarm detector body 1, and the protective film 12 is made of PVC material. More specifically, through the setting of the protective film 12, the display screen of the alarm detector can be protected to prevent the screen surface from being scratched by foreign objects. At the same time, the PVC material has good light transmittance, ensuring the clarity of the user when viewing the display screen.

[0034] Reference Figure 4 The inner diameter of the shell 3 is larger than the outer diameter of the metal ring 71, and the metal ring 71 is movably connected to the inner wall of the shell 3. More specifically, the inner diameter of the shell 3 is slightly larger than the outer diameter of the metal ring 71, so that the metal ring 71 can be placed into the interior of the shell 3.

[0035] Working principle: During use, the metal ring 71, the connecting rod 72 and the filter screen 73 are set to perform multi-layer filtration on the dust in the air entering the detector. The filtering effect is good, which can effectively reduce the dust from entering the detector, and indirectly improve the service life of the combustible gas alarm detector. When the filter assembly on the combustible gas alarm detector needs to be cleaned, the anti-slip sleeve 11 can be rotated to drive the shell 3 and the screw head 5 to rotate. Under the action of the thread, the screw head 5 is disengaged from the inside of the screw groove 4, thereby removing the shell 3 and the filter mechanism 7 from the air inlet pipe 2, and then the pull rod 8 is pulled upward to disengage the metal ring 71 from the fixation of the magnetic ring 74, thereby removing the metal ring 71, the connecting rod 72 and the filter screen 73 from the shell. The interior of the body 3 is taken out and cleaned. After cleaning, the filter assembly is put back into the interior of the shell 3, and then the shell 3 is rotated. Under the action of the thread, the screw head 5 enters the interior of the screw groove 4, thereby installing the shell 3 and the filter mechanism 7 on the air inlet pipe 2, which can facilitate users to quickly install and disassemble the filter assembly, thereby facilitating users to disassemble and clean the filter assembly. It is simple to operate and easy to use, which brings great convenience to users and prevents a large amount of dust from adhering to the filter assembly, causing the gas to be unable to flow smoothly in the alarm detector, thereby improving the detection effect of combustible gas, and solving the current combustible gas alarm detector. It is inconvenient for users to disassemble and clean the filter assembly, thereby reducing the problem of combustible gas detection effect.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combustible gas alarm detector, comprising an alarm detector body (1), an air inlet pipe (2) and a housing (3), characterized in that: The air inlet pipe (2) is installed at the bottom of the alarm detector body (1), a screw groove (4) is provided at the bottom of the air inlet pipe (2), a screw head (5) is fixed at the top of the housing (3), the screw head (5) is connected to the inner thread of the screw groove (4), a through opening (6) is provided through the bottom of the housing (3), and a filter mechanism (7) for blocking dust is provided inside the housing (3); The filtering mechanism (7) comprises a metal ring (71), a connecting rod (72), a filter screen (73) and a magnetic ring (74); the number of the metal rings (71) is two; the filter screen (73) is fixed inside the metal ring (71); the connecting rod (72) is fixed between the two metal rings (71); the magnetic ring (74) is fixed inside the housing (3); and the metal ring (71) and the magnetic ring (74) are magnetically connected.

2. A combustible gas alarm detector according to claim 1, characterized in that: Pull rods (8) are fixed on both sides of the top of the metal ring (71), and the two pull rods (8) are symmetrically designed.

3. The combustible gas alarm detector according to claim 1, characterized in that: Mounting plates (9) are fixed in pairs on both sides of the alarm detector body (1), and mounting holes (10) are provided through the surfaces of the mounting plates (9).

4. The combustible gas alarm detector according to claim 1, characterized in that: An anti-slip sleeve (11) is fixed on the housing (3), and the surface of the anti-slip sleeve (11) is a rough surface.

5. The combustible gas alarm detector according to claim 1, characterized in that: A protective film (12) is provided on the display screen on the surface of the alarm detector body (1), and the protective film (12) is made of PVC material.

6. The combustible gas alarm detector according to claim 1, characterized in that: The inner diameter of the housing (3) is greater than the outer diameter of the metal ring (71), and the metal ring (71) is movably connected to the inner wall of the housing (3).

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