Gas detector with filter

Abstract

The gas detector comprises a shell and a sensor module arranged at the bottom of the shell, a filter plate is arranged at the bottom of the sensor module, a filter hole used for preventing dust from entering the sensor module is formed in the middle of the filter plate, a connecting sleeve is arranged at the bottom of the sensor module in a sleeved mode, and the filter plate is connected with the connecting sleeve in a sleeved mode. And a fixing assembly for fixing the position of the filter plate is arranged at the joint of the filter plate and the connecting sleeve. Through the design of the filter plate, the filter holes, the connecting sleeve, the sliding groove, the sliding block and the fixing assembly, when air enters the sensor module, the air is blocked by dust through the filter holes in the filter plate, when the filter holes are blocked, the filter plate is pushed up and down, the filter plate drives the connecting sleeve and the sliding block to move up and down, and the air is prevented from entering the sensor module. The sliding blocks collide with the inner walls of the top ends or the bottom ends of the sliding grooves, the sliding blocks are collided to generate vibration, the connecting sleeves and the filter plates are driven to vibrate, and dust accumulated at the bottoms of the filter holes is shaken off.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a gas detector with a filter. Background Art

[0002] A gas detector is a device used to detect the concentration of specific gases in the air.

[0003] When detecting gas in the air, the detector is first installed on the wall, and then the concentration of specific gas in the air is detected through the sensor module on the detector. In order to prevent dust from entering the sensor module, a dust net for filtering dust in the air is set at the air inlet of the sensor module. However, after long-term use, a large amount of dust will accumulate at the bottom of the dust net, so that the mesh of the dust net is blocked by the dust, and the gas cannot pass through the dust net to enter the sensor module. In this case, the dust net needs to be removed for cleaning, which wastes a lot of time in disassembling, cleaning and installing the dust net. Utility Model Content

[0004] The purpose of the utility model is to provide a gas detector with a filter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas detector with a filter, comprising a shell and a sensor module arranged at the bottom of the shell, the bottom of the sensor module is provided with a filter plate, the middle of the filter plate is provided with a filter hole for blocking dust from entering the sensor module, the bottom of the sensor module is sleeved with a connecting sleeve, the connection between the filter plate and the connecting sleeve is provided with a fixing component for fixing the position of the filter plate, the inner walls on both sides of the connecting sleeve are symmetrically fixedly connected with sliders, the inner walls on both sides of the sensor module are symmetrically provided with sliding grooves, and the sliders are inserted and connected inside the sliding grooves.

[0006] Preferably, a buffer block is fixedly connected to the bottom end of the sensor module.

[0007] Preferably, the fixing assembly comprises a threaded sleeve fixedly connected to the top of the filter plate, a first thread is formed at the bottom of the connecting sleeve, and the threaded sleeve is threadably sleeved on the outer wall of the first thread.

[0008] Preferably, a fixing ring is sleeved on the top of the connecting sleeve, a sealing ring is provided on the top of the threaded sleeve, and the sealing ring is fixedly connected to the bottom end of the fixing ring.

[0009] Preferably, pressing grooves for rotating the threaded sleeve are symmetrically provided on both sides of the threaded sleeve, and the cross-section of the pressing groove is set to be trapezoidal.

[0010] Preferably, a fixing block is fixedly connected to the top of the shell, and a fixing hole for fixing the position of the shell is opened in the middle of the fixing block.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model adopts the design of filter plate, filter hole, connecting sleeve, slide groove, slider and fixing assembly. When air enters the sensor module, the air is blocked by dust through the filter hole on the filter plate. When the filter hole is blocked, the filter plate is pushed up and down, and the filter plate drives the connecting sleeve and the slider to move upward or downward, so that the slider collides with the inner wall of the top end or the bottom end of the slide groove. The slider vibrates due to the collision, and drives the connecting sleeve and the filter plate to vibrate, and shakes off the dust accumulated at the bottom of the filter hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 It is a front sectional structural schematic diagram of the utility model.

[0015] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of part A.

[0016] In the figure: 1. housing; 2. sensor module; 3. filter plate; 4. connecting sleeve; 5. slide groove; 6. slider; 7. filter hole; 8. buffer block; 9. threaded sleeve; 10. first thread; 11. fixing ring; 12. sealing ring; 13. fixing block; 14. fixing hole; 15. pressing groove. DETAILED DESCRIPTION

[0017] 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 embodiments of 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 in 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.

[0018] The utility model provides Figure 1-3The gas detector with a filter shown includes a shell 1 and a sensor module 2 arranged at the bottom of the shell 1, a filter plate 3 is arranged at the bottom of the sensor module 2, a filter hole 7 for blocking dust from entering the sensor module 2 is opened in the middle of the filter plate 3, a connecting sleeve 4 is sleeved on the bottom of the sensor module 2, a fixing component for fixing the position of the filter plate 3 is arranged at the connection between the filter plate 3 and the connecting sleeve 4, sliders 6 are symmetrically fixedly connected to the inner walls on both sides of the connecting sleeve 4, and slide grooves 5 are symmetrically opened on the inner walls on both sides of the sensor module 2, and the sliders 6 are inserted and connected inside the slide grooves 5.

[0019] It should be noted that the housing 1 and sensor module 2 are gas detectors of model LR8600. When in use, the sensor module 2 is used to detect the content of special gases in the air. When the detection result is higher than the set value, an alarm is sounded through the alarm arranged on one side of the housing 1 to remind the staff. The filter plate 3 is arranged in a flat cylindrical shape, and a filter hole 7 for air circulation and dust blocking is opened in the middle of the cylinder. The filter hole 7 is a hole of 200 to 150 mesh; the number of the sliders 6 and the chute 5 is at least two, and the number is the same. When in use, the slider 6 slides inside the chute 5. The design of the slider 6 is used to limit the moving distance of the connecting sleeve 4. When the connecting sleeve 4 moves, the slider 6 is driven to slide inside the chute 5. When the slider 6 moves to fit the inner wall of the top end or the inner wall of the bottom end of the chute 5, the slider 6 will not be able to continue to move in the current direction, thereby limiting the moving distance of the connecting sleeve 4 fixedly connected thereto by limiting the moving distance of the slider 6.

[0020] Furthermore, when air enters the sensor module 2, it is blocked by dust through the filter hole 7 on the filter plate 3. When the filter hole 7 is blocked, the filter plate 3 is pushed up and down, and the filter plate 3 drives the connecting sleeve 4 and the slider 6 to move upward or downward, so that the slider 6 collides with the inner wall of the top or bottom end of the slide groove 5. The slider 6 vibrates due to the collision, and drives the connecting sleeve 4 and the filter plate 3 to vibrate, and shakes off the dust accumulated at the bottom of the filter hole 7.

[0021] Specifically, a buffer block 8 is fixedly connected to the bottom end of the sensor module 2 .

[0022] It should be noted that the buffer block 8 is made of rubber material, which is elastic. When the filter plate 3 is moved upward, the buffer block 8 contacts the filter plate 3 and the impact force of the filter plate 3 is absorbed by the deformation of the buffer block 8 .

[0023] Specifically, the fixing assembly includes a threaded sleeve 9 fixedly connected to the top of the filter plate 3 , a first thread 10 is formed at the bottom of the connecting sleeve 4 , and the threaded sleeve 9 is threadedly sleeved on the outer wall of the first thread 10 .

[0024] Specifically, a fixing ring 11 is sleeved on the top of the connecting sleeve 4 , and a sealing ring 12 is provided on the top of the threaded sleeve 9 . The sealing ring 12 is fixedly connected to the bottom end of the fixing ring 11 .

[0025] It should be noted that the sealing ring 12 is made of rubber material, which has the characteristic of being deformable. When in use, the threaded sleeve 9 is threadedly sleeved on the outer wall of the connecting sleeve 4 through the first thread 10. When the threaded sleeve 9 moves to the bottom of the sealing ring 12, the position of the threaded sleeve 9 continues to be moved, and the sealing ring 12 is squeezed and deformed. Through the deformation of the sealing ring 12, the gap at the connection between the sealing ring 12 and the threaded sleeve 9 is filled, thereby sealing the connection between the sealing ring 12 and the threaded sleeve 9 to prevent dust from entering the interior of the threaded sleeve 9 through the sealing ring 12 and the threaded sleeve 9.

[0026] Specifically, pressing grooves 15 for rotating the threaded sleeve 9 are symmetrically provided on both sides of the threaded sleeve 9 , and the cross section of the pressing groove 15 is set to be trapezoidal.

[0027] It should be noted that the outer wall of the threaded sleeve 9 is cylindrical. When the threaded sleeve 9 needs to be rotated, the finger is inserted into the inside of the pressing groove 15, and the friction between the finger and the threaded sleeve 9 is increased by the pressing groove 15, so as to avoid the situation that the finger slips on the threaded sleeve 9 when the threaded sleeve 9 is rotated, resulting in the inability to rotate the threaded sleeve 9.

[0028] Specifically, a fixing block 13 is fixedly connected to the top of the housing 1 , and a fixing hole 14 for fixing the position of the housing 1 is provided in the middle of the fixing block 13 .

[0029] It should be noted that when fixing the position of the gas detector, the gas detector is first moved to the desired position, and then bolts are passed through the fixing holes 14 to fix the position of the fixing block 13, and the position of the gas detector is fixed by the fixing block 13 at the fixed position.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas detector with a filter, comprising a housing (1) and a sensor module (2) arranged at the bottom of the housing (1), characterized in that: The bottom of the sensor module (2) is provided with a filter plate (3), the middle of the filter plate (3) is provided with a filter hole (7) for blocking dust from entering the sensor module (2), the bottom of the sensor module (2) is sleeved with a connecting sleeve (4), the connection between the filter plate (3) and the connecting sleeve (4) is provided with a fixing component for fixing the position of the filter plate (3), the inner walls on both sides of the connecting sleeve (4) are symmetrically fixedly connected with sliders (6), the inner walls on both sides of the sensor module (2) are symmetrically provided with sliding grooves (5), and the sliders (6) are inserted and connected inside the sliding grooves (5).

2. The gas detector with a filter according to claim 1, characterized in that: A buffer block (8) is fixedly connected to the bottom end of the sensor module (2).

3. The gas detector with a filter according to claim 1, characterized in that: The fixing assembly comprises a threaded sleeve (9) fixedly connected to the top of the filter plate (3); a first thread (10) is provided at the bottom of the connecting sleeve (4); and the threaded sleeve (9) is threadedly sleeved on the outer wall of the first thread (10).

4. The gas detector with a filter according to claim 3, characterized in that: A fixing ring (11) is sleeved on the top of the connecting sleeve (4), a sealing ring (12) is arranged on the top of the threaded sleeve (9), and the sealing ring (12) is fixedly connected to the bottom end of the fixing ring (11).

5. The gas detector with a filter according to claim 4, characterized in that: Pressing grooves (15) for rotating the threaded sleeve (9) are symmetrically provided on both sides of the threaded sleeve (9), and the cross section of the pressing groove (15) is arranged to be trapezoidal.

6. The gas detector with a filter according to claim 1, characterized in that: A fixing block (13) is fixedly connected to the top of the housing (1), and a fixing hole (14) for fixing the position of the housing (1) is provided in the middle of the fixing block (13).

Images