Filtering device for soft connection of sampling tube of gas detector

Abstract

The utility model relates to the technical field of gas detectors, and provides a filtering device of a gas detector sampling tube flexible joint, which comprises a shell, a control panel is fixedly connected to the left side of the shell, a handle is fixedly connected to the top of the shell, a gas inlet fixedly connected with the top of the shell is arranged on one side of the handle, and a gas outlet fixedly connected with the top of the shell is arranged on the other side of the handle. A filter mechanism is arranged in the air inlet and comprises a filter assembly and a fastening assembly, the filter assembly comprises a connecting pipe, a limiting ring, a dust removal filter element, a connecting ring and a filter screen, and the connecting pipe is fixedly connected to the top of the air inlet. The filter screen can preliminarily filter impurities in the gas, the filtered gas continues to move forwards, and dust in the air can be further filtered under the action of the dust removal filter element, so that the clean gas enters the equipment, and the situation that the interior of the equipment is blocked due to the fact that the dust exists in the gas is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detectors, in particular to a filtering device for a flexible connection of a sampling tube of a gas detector. Background Art

[0002] Gas detector is an instrument tool for detecting gas leakage concentration, including portable gas detector, handheld gas detector, fixed gas detector, online gas detector, etc. Gas sensors are mainly used to detect the types of gases in the environment. Gas sensors are sensors used to detect the composition and content of gases.

[0003] In the prior art, in order to prevent dust in the gas from entering the interior of the equipment, filter cotton is generally placed in the hose that transmits the gas. However, filtering the gas through the filter cotton will cause poor gas circulation, resulting in slow gas transmission and easily causing blockage of the transmission pipe.

[0004] In view of this, the utility model provides a filtering device for a flexible connection of a gas detector sampling tube. Utility Model Content

[0005] The utility model provides a filtering device for a gas detector sampling tube flexible connection, which solves the problem that filtering gas through filter cotton in the related technology will lead to poor gas circulation, resulting in slow gas transmission and easy clogging of the transmission tube.

[0006] The technical solution of the utility model is as follows: a filtering device for a flexible connection of a gas detector sampling tube, comprising a shell, a control panel fixedly connected to the left side of the shell, a handle fixedly connected to the top of the shell, an air inlet fixedly connected to the top of the shell is provided on one side of the handle, and a filtering mechanism is provided inside the air inlet.

[0007] Preferably, the filtering mechanism includes a filtering assembly and a fastening assembly.

[0008] Preferably, the filter assembly includes a connecting pipe, a limiting ring, a dust removal filter element, a connecting ring and a filter screen.

[0009] Preferably, the connecting tube is fixedly connected to the top of the air inlet, the inner wall of the connecting tube is fixedly connected to a limiting ring, the top of the limiting ring is affixed with a dust filter element, the top of the dust filter element is fixedly connected to the connecting ring, and the inside of the connecting ring is fixedly connected to a filter screen.

[0010] Preferably, the fastening assembly comprises a mounting ring and a fixing rod.

[0011] Preferably, the assembly ring is threadedly connected to the surface of the connecting pipe, and the inner wall of the assembly ring is fixedly connected to a fixing rod located above the connecting ring.

[0012] Preferably, the filter screen completely fills the inner wall of the connecting ring.

[0013] Preferably, when the assembly ring is tightened on the surface of the connecting tube, the fixing rod and the connecting ring fit tightly together, and the connecting ring forms a fixing structure inside the connecting tube through the fixing rod.

[0014] Preferably, a rubber ring is fixedly connected to the top of the assembly ring, and two groups of mounting plates fixedly connected to the assembly ring are provided on the side of the rubber ring, one side of the two groups of mounting plates are fixedly connected to springs, the tails of the two groups of springs are fixedly connected to clamping rings, and a transmission tube is inserted into the interior of the assembly ring.

[0015] Preferably, the transmission tube is tightly fitted to the inner wall of the rubber ring, and the clamping ring forms a clamping structure for the transmission tube through a spring.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. In the utility model, by providing a rubber ring and a clamping ring, under the elastic force of the rubber ring, a tightening force can be applied to the transmission tube, so that it cannot be easily fallen off from the inside of the assembly ring, and under the action of the spring, the clamping ring can be controlled to clamp and fix the transmission tube, further improving the stability of the transmission tube and preventing gas leakage;

[0018] 2. In the utility model, a dust removal filter is provided. When the gas is transmitted, it will pass through the filter screen, and the filter screen will preliminarily filter the impurities in the gas. The filtered gas continues to move forward. At this time, under the action of the dust removal filter element, the dust in the air can be further filtered, so that clean gas can enter the interior of the equipment, avoiding the presence of dust in the gas causing blockage inside the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the fixing rod structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the connecting ring structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the dust removal filter structure of the utility model;

[0025] Figure 6 It is a schematic diagram of the rubber ring structure of the utility model.

[0026] In the figure: 1. Shell; 2. Control panel; 3. Handle; 4. Air inlet; 5. Filter mechanism; 51. Filter assembly; 511. Connecting pipe; 512. Limiting ring; 513. Dust filter element; 514. Connecting ring; 515. Filter; 52. Fastening assembly; 521. Assembly ring; 522. Fixing rod; 6. Rubber ring; 7. Mounting plate; 8. Spring; 9. Clamp ring; 10. Transmission pipe. DETAILED DESCRIPTION

[0027] The following will be combined with 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 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.

[0028] Example 1

[0029] The preferred embodiment of the filter device for the flexible connection of the gas detector sampling tube provided by the utility model is as follows: Figures 1 to 6 As shown: a filtering device for a flexible connection of a gas detector sampling tube comprises a shell 1, a control panel 2 is fixedly connected to the left side of the shell 1, a handle 3 is fixedly connected to the top of the shell 1, one side of the handle 3 is provided with an air inlet 4 fixedly connected to the top of the shell 1, and a filtering mechanism 5 is provided inside the air inlet 4.

[0030] In this embodiment, the filter mechanism 5 includes a filter assembly 51 and a fastening assembly 52. ​​By providing the filter mechanism 5, dust in the gas can be filtered out.

[0031] In this embodiment, the filter assembly 51 includes a connecting tube 511, a limiting ring 512, a dust removal filter element 513, a connecting ring 514 and a filter screen 515. By setting the filter assembly 51, dust can be prevented from being present in the gas, and dust can be prevented from entering the equipment and causing damage to the equipment.

[0032] In this embodiment, the connecting tube 511 is fixedly connected to the top of the air inlet 4, the inner wall of the connecting tube 511 is fixedly connected to the limiting ring 512, the top of the limiting ring 512 is affixed with a dust removal filter element 513, the top of the dust removal filter element 513 is fixedly connected to the connecting ring 514, and the inside of the connecting ring 514 is fixedly connected to the filter screen 515.

[0033] In this embodiment, the fastening assembly 52 includes an assembly ring 521 and a fixing rod 522 . By providing the fastening assembly 52 , the limiting ring 512 can be fixed, thereby fixing the dust filter element 513 and the filter screen 515 .

[0034] In this embodiment, the assembly ring 521 is threadedly connected to the surface of the connecting tube 511 , and the inner wall of the assembly ring 521 is fixedly connected with a fixing rod 522 located above the connecting ring 514 .

[0035] In this embodiment, the filter 515 completely fills the inner wall of the connecting ring 514. By setting the dust removal filter element 513, when the gas is transmitted, it will pass through the filter 515. The filter 515 will preliminarily filter the impurities in the gas. The filtered gas continues to move forward. At this time, under the action of the dust removal filter element 513, the dust in the air can be further filtered, so that clean gas can enter the interior of the equipment.

[0036] In this embodiment, when the assembly ring 521 is tightened on the surface of the connecting tube 511, the fixing rod 522 is tightly fitted with the connecting ring 514, and the connecting ring 514 forms a fixed structure inside the connecting tube 511 through the fixing rod 522. The assembly ring 521 is rotated to be removed from the connecting tube 511. At this time, the fixing rod 522 located inside the assembly ring 521 no longer applies a fixing force to the assembly ring 521, and the dust filter element 513 can be removed from the limiting ring 512.

[0037] Example 2

[0038] Based on Example 1, a preferred embodiment of the filter device for the flexible connection of the gas detector sampling tube provided by the utility model is as follows: Figures 1 to 6 As shown: a rubber ring 6 is fixedly connected to the top of the assembly ring 521, two sets of mounting plates 7 fixedly connected to the assembly ring 521 are arranged on the side of the rubber ring 6, springs 8 are fixedly connected to one side of the two sets of mounting plates 7, and the tails of the two sets of springs 8 are fixedly connected to clamping rings 9, and a transmission tube 10 is inserted into the interior of the assembly ring 521.

[0039] In this embodiment, the transmission tube 10 fits tightly against the inner wall of the rubber ring 6, and the clamp ring 9 forms a clamping structure for the transmission tube 10 through the spring 8. Under the elastic force of the rubber ring 6, a tightening force can be applied to the transmission tube 10, so that it cannot easily fall off from the inside of the assembly ring 521. Under the action of the spring 8, the clamp ring 9 can be controlled to clamp and fix the transmission tube 10, thereby further improving the stability of the transmission tube 10 and preventing gas leakage.

[0040] The working principle and use process of the utility model are as follows: first, the transmission tube 10 is inserted into the assembly ring 521 through the rubber ring 6 and extended to the air inlet 4 to transmit the gas. Under the elastic force of the rubber ring 6, a tightening force can be applied to the transmission tube 10, so that it cannot easily fall off from the inside of the assembly ring 521, and under the action of the spring 8, the clamping ring 9 can be controlled to clamp and fix the transmission tube 10, thereby further improving the stability of the transmission tube 10 and preventing gas leakage.

[0041] By setting up the dust filter 513, when the gas is transmitted, it will pass through the filter 515, and the filter 515 will preliminarily filter the impurities in the gas. The filtered gas continues to move forward. At this time, under the action of the dust filter 513, the dust in the air can be further filtered, so that the clean gas can enter the interior of the equipment, avoiding the dust in the gas causing blockage inside the equipment. As time goes by, the filter 515 and the dust filter 513 will be blocked and affect the gas transmission. When the filter 515 and the dust filter 513 need to be replaced, when the equipment is not working, it is only necessary to rotate the assembly ring 521 to remove it from the connecting pipe 511. At this time, the fixing rod 522 located inside the assembly ring 521 no longer applies a fixing force to the assembly ring 521. At this time, the dust filter 513 can be removed from the limiting ring 512 for replacement.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 filtering device for a gas detector sampling tube flexible connection, comprising a housing (1), characterized in that: A control panel (2) is fixedly connected to the left side of the shell (1), a handle (3) is fixedly connected to the top of the shell (1), an air inlet (4) fixedly connected to the top of the shell (1) is provided on one side of the handle (3), and a filtering mechanism (5) is provided inside the air inlet (4).

2. A filter device for a gas detector sampling tube flexible connection according to claim 1, characterized in that: The filtering mechanism (5) comprises a filtering component (51) and a fastening component (52).

3. A filter device for a gas detector sampling tube flexible connection according to claim 2, characterized in that: The filter assembly (51) comprises a connecting pipe (511), a limiting ring (512), a dust removal filter element (513), a connecting ring (514) and a filter screen (515).

4. A filter device for a gas detector sampling tube flexible connection according to claim 3, characterized in that: The connecting tube (511) is fixedly connected to the top of the air inlet (4); the inner wall of the connecting tube (511) is fixedly connected to a limiting ring (512); the top of the limiting ring (512) is fitted with a dust filter element (513); the top of the dust filter element (513) is fixedly connected to a connecting ring (514); and the interior of the connecting ring (514) is fixedly connected to a filter screen (515).

5. A filter device for a gas detector sampling tube flexible connection according to claim 2, characterized in that: The fastening assembly (52) comprises a mounting ring (521) and a fixing rod (522).

6. A filter device for a gas detector sampling tube flexible connection according to claim 5, characterized in that: The assembly ring (521) is threadedly connected to the surface of the connecting pipe (511), and the inner wall of the assembly ring (521) is fixedly connected to a fixing rod (522) located above the connecting ring (514).

7. A filter device for a gas detector sampling tube flexible connection according to claim 4, characterized in that: The filter screen (515) completely fills the inner wall of the adapter ring (514).

8. A filter device for a gas detector sampling tube flexible connection according to claim 6, characterized in that: When the assembly ring (521) is tightened on the surface of the connecting tube (511), the fixing rod (522) and the connecting ring (514) are tightly fitted, and the connecting ring (514) forms a fixed structure inside the connecting tube (511) through the fixing rod (522).

9. A filter device for a gas detector sampling tube flexible connection according to claim 6, characterized in that: A rubber ring (6) is fixedly connected to the top of the assembly ring (521); two groups of mounting plates (7) fixedly connected to the assembly ring (521) are arranged on the side of the rubber ring (6); springs (8) are fixedly connected to one side of the two groups of mounting plates (7); the tails of the two groups of springs (8) are fixedly connected to clamping rings (9); and a transmission tube (10) is inserted into the interior of the assembly ring (521).

10. A filter device for flexible connection of a gas detector sampling tube according to claim 9, characterized in that: The transmission tube (10) is tightly fitted to the inner wall of the rubber ring (6), and the clamping ring (9) forms a clamping structure for the transmission tube (10) through the spring (8).

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