Explosion-proof combustible gas detector

Abstract

The utility model belongs to the technical field of combustible gas detectors, and discloses an explosion-proof combustible gas detector, which comprises a connecting main body, a protective shell, a filter screen, a detection main body and a cleaning assembly, the connecting main body is fixedly arranged below a display main body, the detection main body is fixedly arranged below the connecting main body, and the cleaning assembly is fixedly arranged below the display main body. According to the utility model, the pressure ball, the air pipe, the nozzle and the like are arranged, during use, an operator repeatedly presses the pressure ball, so that external air quickly enters the air pipe through the pressure ball, and the air pipe is prevented from being blocked by the nozzle; the filter screen is simultaneously impacted from multiple directions through a plurality of nozzles, the filter screen is repeatedly impacted by high-speed airflow, the cleaning purpose is achieved, the filter screen and the protective shell do not need to be disassembled, and the problems that the maintenance steps are complicated, the efficiency is low and the overall consumed time is long when the filter screen is cleaned currently are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of combustible gas detectors, and in particular relates to an explosion-proof combustible gas detector. Background Art

[0002] In order to ensure the accuracy of detection, the currently used explosion-proof combustible gas detectors often have a filter fixedly installed on the periphery of the bottom detection end to reduce dust adhesion. At the same time, the protective shell is fixed to the periphery of the detection end by a spiral connection to reduce the problem of the detection end being contaminated by splashing liquid or being hit. However, the above method requires the operator to disassemble the protective shell and the filter one by one during the subsequent maintenance process before cleaning the filter with a small brush and reinstalling it after cleaning. The maintenance steps are complicated, inefficient, and time-consuming overall. Therefore, an explosion-proof combustible gas detector is designed to solve the problem that the current maintenance steps when cleaning the filter are complicated, inefficient, and time-consuming overall. Utility Model Content

[0003] The utility model aims to provide an explosion-proof combustible gas detector to solve the problem in the above-mentioned background technology that the maintenance steps for cleaning the filter are complicated, inefficient and time-consuming.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof combustible gas detector includes a connecting body, a protective shell, a filter, a detection body and a cleaning component, the connecting body is fixedly arranged below the display body, the detection body is fixedly installed below the connecting body, and a filter is sleeved on the outer wall of the detection body, the protective shell wraps the detection body, and the protective shell is sleeved and fixed on the periphery of the connecting body, the cleaning component is arranged in the protective shell, and the cleaning component is used to increase the air flow speed inside the protective shell.

[0005] Preferably, the cleaning component includes an air pipe, a nozzle and a pressure ball. A placement groove is provided on the inner wall of the protective shell, an air pipe is fixedly installed in the placement groove, and small holes are provided on the inner wall of the placement groove. The air pipe is annular, and nozzles are symmetrically installed at equal intervals on the inner wall of the air pipe. The pressure ball is arranged outside the protective shell, and the pressure ball and the air pipe are connected by a pipe, and the pipe passes through the protective shell through the small hole.

[0006] Preferably, auxiliary plates are symmetrically installed outside the protective shell and on both sides of the pressure ball, and glue is applied to both ends of the pressure ball, and the glue is used to adhere the pressure ball to the auxiliary plates.

[0007] Preferably, plastic protrusions are symmetrically installed at equal intervals on the upper inner wall of the protective shell, positioning holes are symmetrically opened at equal intervals on the periphery of the connecting body, the plastic protrusions are embedded in the positioning holes, and ventilation holes are symmetrically opened on the protective shell and located between the plastic protrusions and the placement grooves.

[0008] Preferably, the auxiliary plate is located at the rear end of the protective shell, and an auxiliary groove is provided on the outer wall surface of the auxiliary plate.

[0009] Preferably, the height of the auxiliary plate is smaller than the height of the protective shell, and the thickness of the display body is greater than the distance between the rear end surface of the auxiliary plate and the front end surface of the protective shell.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) The utility model is provided with a pressure ball, an air pipe and a nozzle, etc. When in use, the operator will repeatedly press the pressure ball to allow external air to quickly enter the air pipe through the pressure ball and simultaneously impact the filter from multiple directions through multiple nozzles. The high-speed airflow is used to repeatedly impact the filter to achieve the cleaning purpose without removing the filter and the protective shell, thereby solving the problem that the maintenance steps for cleaning the filter are complicated, inefficient and time-consuming.

[0012] (2) The utility model is provided with an auxiliary plate, a pressure ball and an auxiliary groove, etc. The installed auxiliary plate protects both sides of the pressure ball, thereby increasing the stability of the pressure ball and reducing the problem of the pressure ball contacting with external sharp objects and causing damage. The auxiliary groove can greatly facilitate the operator to directly pull down the protective shell and complete the disassembly with the help of the plastic protrusion and the positioning hole, thereby shortening the time required for disassembly of the traditional threaded connection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a side view of the utility model;

[0016] In the figure: 1. pressure ball; 2. auxiliary groove; 3. air pipe; 4. nozzle; 5. detection body; 6. filter screen; 7. placement groove; 8. protective shell; 9. glue; 10. auxiliary plate; 11. connection body; 12. plastic bump; 13. positioning hole. 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] See also Figure 1-Figure 3 As shown, the utility model provides the following technical solutions: an explosion-proof combustible gas detector includes a connecting body 11, a protective shell 8, a filter 6, a detection body 5 and a cleaning component, the connecting body 11 is fixedly arranged below the display body, the detection body 5 is fixedly installed below the connecting body 11, and the filter 6 is sleeved on the outer wall of the detection body 5, the protective shell 8 wraps the detection body 5, and the protective shell 8 is sleeved and fixed on the periphery of the connecting body 11, the cleaning component is arranged in the protective shell 8, and the cleaning component is used to increase the air flow speed inside the protective shell 8, and the cleaning component includes The air pipe 3, the nozzle 4 and the pressure ball 1, the protective shell 8 is provided with a placement groove 7 on the inner wall, the air pipe 3 is fixedly arranged in the placement groove 7, and the placement groove 7 is provided with small holes on the inner wall of the placement groove 7, the air pipe 3 is annular, and the nozzles 4 are symmetrically installed on the inner wall of the air pipe 3 at equal intervals, the pressure ball 1 is arranged outside the protective shell 8, and the pressure ball 1 and the air pipe 3 are connected by a pipeline, and the pipeline passes through the protective shell 8 through the small holes, and auxiliary plates 10 are symmetrically installed on the outside of the protective shell 8 and on both sides of the pressure ball 1, and glue 9 is applied to both ends of the pressure ball 1, and the glue 9 is used to adhere the pressure ball 1 to the auxiliary plates 10.

[0019] Through the above technical solution: when in use, the operator repeatedly presses the pressure ball 1 to allow external air to quickly enter the trachea 3 after passing through the pressure ball 1 and the pipeline, and simultaneously impacts the filter 6 from multiple directions through multiple nozzles 4, and utilizes high-speed airflow to repeatedly impact the filter 6 to achieve the cleaning purpose without removing the filter 6 and the protective shell 8, thereby solving the problem of complicated maintenance steps, low efficiency and overall long time consumption when cleaning the filter 6. The installation of the auxiliary plate 10 and the application of glue 9 make the pressure ball 1 firmly adhered and fixed between the auxiliary plates 10, eliminating the problem of shaking of the pressure ball 1 and achieving the purpose of increasing the connection stability of the pressure ball 1.

[0020] See also Figure 2-Figure 3As shown, plastic protrusions 12 are symmetrically installed at equal intervals on the upper part of the inner wall of the protective shell 8, and the protective shell 8 is made of plastic. Positioning holes 13 are symmetrically opened at equal intervals on the outer periphery of the connecting body 11, and the plastic protrusions 12 are embedded in the positioning holes 13. Air holes are symmetrically opened on the protective shell 8 and located between the plastic protrusions 12 and the placement grooves 7. The auxiliary plate 10 is located at the rear end of the protective shell 8, and an auxiliary groove 2 is opened on the outer wall surface of the auxiliary plate 10. The height of the auxiliary plate 10 is less than the height of the protective shell 8, and the thickness of the display body is greater than the distance between the rear end face of the auxiliary plate 10 and the front end face of the protective shell 8.

[0021] Through the above technical solution: by limiting the height of the auxiliary plate 10, even if the explosion-proof combustible gas detector is installed against the wall, the operator can directly contact the pressure ball 1 for cleaning operations due to the height difference, and use the installed auxiliary plate 10 to protect both sides of the pressure ball 1, while increasing the stability of the pressure ball 1, reducing the problem of the pressure ball 1 contacting with external sharp objects and causing damage. The auxiliary groove 2 opened can greatly facilitate the operator to directly pull down the protective shell 8 when removing the protective shell 8, forcing the plastic protective shell 8 to deform, and then drive the plastic protrusion 12 to move to the positioning outside, and then the protective shell 8 can be quickly removed without long-term rotation, so as to shorten the time required for disassembly of the traditional threaded connection method. During installation, the protective shell 8 is continuously pushed from bottom to top to be sleeved on the connecting body 11, so that after the protective shell 8 is deformed, it drives the plastic protrusion 12 to be re-embedded into the positioning hole to complete the installation.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof combustible gas detector, characterized in that: The invention comprises a connecting body (11), a protective shell (8), a filter (6), a detection body (5) and a cleaning component, wherein the connecting body (11) is fixedly arranged below the display body, the detection body (5) is fixedly installed below the connecting body (11), and a filter (6) is sleeved on the outer wall of the detection body (5), the protective shell (8) wraps the detection body (5), and the protective shell (8) is sleeved and fixed on the outer periphery of the connecting body (11), and the cleaning component is arranged in the protective shell (8), and the cleaning component is used to increase the air flow speed inside the protective shell (8).

2. The explosion-proof combustible gas detector according to claim 1, characterized in that: The cleaning component comprises an air pipe (3), a nozzle (4) and a pressure ball (1); a placement groove (7) is provided on the inner wall of the protective shell (8); the air pipe (3) is fixedly arranged in the placement groove (7), and a small hole is provided on the inner wall of the placement groove (7); the air pipe (3) is annular, and nozzles (4) are symmetrically installed at equal intervals on the inner wall of the air pipe (3); the pressure ball (1) is arranged outside the protective shell (8), and the pressure ball (1) and the air pipe (3) are connected by a pipeline, and the pipeline passes through the protective shell (8) through the small hole.

3. The explosion-proof combustible gas detector according to claim 2, characterized in that: Auxiliary plates (10) are symmetrically installed outside the protective shell (8) and on both sides of the pressure ball (1). Glue (9) is applied to both ends of the pressure ball (1) to bond the pressure ball (1) to the auxiliary plates (10).

4. The explosion-proof combustible gas detector according to claim 3, characterized in that: The upper inner wall of the protective shell (8) is symmetrically provided with plastic protrusions (12) at equal intervals, the outer periphery of the connecting body (11) is symmetrically provided with positioning holes (13) at equal intervals, the plastic protrusions (12) are embedded in the positioning holes (13), and the protective shell (8) is symmetrically provided with ventilation holes at equal intervals between the plastic protrusions (12) and the placement groove (7).

5. The explosion-proof combustible gas detector according to claim 4, characterized in that: The auxiliary plate (10) is located at the rear end of the protective shell (8), and an auxiliary groove (2) is provided on the outer wall surface of the auxiliary plate (10).

6. The explosion-proof combustible gas detector according to claim 4, characterized in that: The height of the auxiliary plate (10) is smaller than the height of the protective shell (8), and the thickness of the display body is greater than the distance between the rear end surface of the auxiliary plate (10) and the front end surface of the protective shell (8).

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