Sealing device of gas monitor

Abstract

The utility model discloses a sealing device of a gas monitor, which belongs to the technical field of gas monitors and comprises a gas monitor, a gas inlet pipe is arranged at the top of the gas monitor, a sealing cover is hinged to the top of the gas inlet pipe, a fixing assembly is arranged on the outer wall of the gas inlet pipe, and the fixing assembly comprises rotating shafts connected to the left side wall and the right side wall of the gas inlet pipe through bearings. A spring is arranged at the bottom of the sliding plate, one end of the spring is connected with the inner bottom of the sleeve, a movable rod is arranged at the top of the sliding plate, and one end of the movable rod penetrates through the inner top of the sleeve and is connected with a pressing plate arranged outside; under the cooperation of the sealing cover, the sealing ring and the fixing assembly, the gas inlet pipe can be sealed when the gas monitor is not used, the sealing performance of the monitor is improved, external impurities and dust are prevented from entering the gas monitor through the gas inlet pipe, and the service life of the gas monitor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gas monitors, in particular to a sealing device for a gas monitor. Background Art

[0002] A gas monitor is an instrument tool for detecting gas leakage concentration. It mainly uses a gas sensor to detect the type of gas present in the environment. The gas sensor is a sensor used to detect the composition and content of the gas. When the gas monitor is in use, the gas enters the gas monitor through the intake pipe for detection. However, most of the existing intake pipes are exposed, so when the gas monitor is not in use, external dust and impurities can easily enter the monitor through the intake pipe, which can easily cause damage to the precision devices inside the monitor. Therefore, we propose a sealing device for a gas monitor. Utility Model Content

[0003] The purpose of the utility model is to provide a sealing device for a gas monitor to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing device for a gas monitor, including a gas monitor, an air inlet pipe is provided on the top of the gas monitor, a sealing cover is hingedly provided on the top of the air inlet pipe, a fixing component is provided on the outer wall of the air inlet pipe, the fixing component includes a rotating shaft connected to the left and right side walls of the air inlet pipe by bearings, a sleeve is provided at one end of each set of rotating shafts, a sliding plate is slidably connected inside the sleeve, a spring is provided at the bottom of the sliding plate, one end of the spring is connected to the bottom of the sleeve, a movable rod is provided on the top of the sliding plate, one end of the movable rod passes through the top of the sleeve and is connected to a pressure plate provided on the outside.

[0005] Furthermore, an anti-slip layer is provided at the bottom of the pressing plate.

[0006] Furthermore, guide grooves are provided on the left and right side walls of the sleeve, and guide blocks matching the guide grooves are provided on the left and right side walls of the sliding plate.

[0007] Furthermore, a sealing ring is provided on the front side wall of the sealing cover.

[0008] Furthermore, a handle is provided on the top of the pressing plate.

[0009] Compared with the prior art, the beneficial effect of the utility model is that the utility model can seal the air inlet pipe when the gas monitor is not in use with the cooperation of the sealing cover, the sealing ring and the fixing assembly, thereby improving the sealing performance of the monitor, preventing external impurities and dust from entering the gas monitor through the air inlet pipe, and increasing the service life of the gas monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure A of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure B of the utility model;

[0013] Figure 4 It is a schematic diagram of the internal structure of the sleeve of the utility model.

[0014] In the figure: 1. gas monitor; 2. air inlet pipe; 3. sealing cover; 4. sealing ring; 5. fixing assembly; 50. pressure plate; 51. movable rod; 52. sleeve; 53. rotating shaft; 54. anti-skid layer; 55. sliding plate; 56. spring. DETAILED DESCRIPTION

[0015] 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.

[0016] Embodiment 1:

[0017] See also Figure 1-4 The utility model provides a technical solution: a sealing device of a gas monitor, including a gas monitor 1, an air inlet pipe 2 is arranged on the top of the gas monitor 1, a sealing cover 3 is hingedly arranged on the top of the air inlet pipe 2, a sealing ring 4 is arranged on the front side wall of the sealing cover 3, and the sealing performance between the sealing cover 3 and the air inlet pipe 2 is better under the action of the sealing ring 4, a fixing component 5 is arranged on the outer wall of the air inlet pipe 2, and the fixing component 5 includes a rotating shaft 53 connected to the left and right side walls of the air inlet pipe 2 through a bearing, one end of each of the two sets of rotating shafts 53 is provided with a sleeve 52, a sliding plate 55 is slidably connected in the sleeve 52, and the left and right side walls of the sleeve 52 are provided with A guide groove and guide blocks matching the guide groove are arranged on the left and right side walls of the sliding plate 55. Under the action of the guide groove and the guide blocks, the sliding plate 55 can move up and down in the sleeve 52 more stably. A spring 56 is arranged at the bottom of the sliding plate 55. One end of the spring 56 is connected to the bottom of the sleeve 52. A movable rod 51 is arranged at the top of the sliding plate 55. One end of the movable rod 51 passes through the top of the sleeve 52 and is connected to the pressure plate 50 arranged outside. A handle is arranged on the top of the pressure plate 50. An anti-skid layer 54 is arranged at the bottom of the pressure plate 50. Under the action of the anti-skid layer 54, the pressure plate 50 is not easy to slide when in contact with the sealing cover 3, and has good stability.

[0018] Working principle: When the gas monitor 1 is in use, the gas enters the gas monitor 1 through the intake pipe 2 for detection, so that the composition and content of the gas can be detected. When the gas monitor 1 is not in use, the staff covers the intake pipe 2 with the sealing cover 3, and then the staff pulls the handle to drive the pressure plate 50 to move, the pressure plate 50 drives the movable rod 51 to move, and the movable rod 51 drives the sliding plate 55 and the spring 56 to stretch, and then rotates the pressure plate 50 to the top of the sealing cover 3, and then slowly releases the handle. Under the action of the elastic force of the spring 56, the pressure plate 50 can squeeze and tighten the sealing cover 3, so that the sealing ring 4 can better fit closely with the intake pipe 2, with good sealing, and can prevent external impurities and dust from entering the gas monitor 1 through the intake pipe 2.

[0019] 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. A sealing device for a gas monitor, comprising a gas monitor (1), wherein an air inlet pipe (2) is provided at the top of the gas monitor (1), and characterized in that: A sealing cover (3) is hingedly provided at the top of the air intake pipe (2), and a fixing assembly (5) is provided on the outer wall of the air intake pipe (2). The fixing assembly (5) includes a rotating shaft (53) connected to the left and right side walls of the air intake pipe (2) via bearings. One end of each set of rotating shafts (53) is provided with a sleeve (52), and a sliding plate (55) is slidably connected inside the sleeve (52). A spring (56) is provided at the bottom of the sliding plate (55), and one end of the spring (56) is connected to the inner bottom of the sleeve (52). A movable rod (51) is provided at the top of the sliding plate (55), and one end of the movable rod (51) passes through the inner top of the sleeve (52) and is connected to a pressure plate (50) provided outside.

2. The sealing device of the gas monitor according to claim 1, characterized in that: The bottom of the pressing plate (50) is provided with an anti-slip layer (54).

3. The sealing device of the gas monitor according to claim 1, characterized in that: The left and right side walls of the sleeve (52) are both provided with guide grooves, and the left and right side walls of the sliding plate (55) are both provided with guide blocks matching the guide grooves.

4. The sealing device of the gas monitor according to claim 1, characterized in that: The front side wall of the sealing cover (3) is provided with a sealing ring (4).

5. The sealing device of the gas monitor according to claim 1, characterized in that: A handle is provided on the top of the pressing plate (50).

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