Leakage detection tool for multiple air pressure sensors

Abstract

The utility model relates to a multi-baroceptor leak hunting tool, which comprises a bottom plate, a sensor positioning seat group is arranged on the bottom plate, two sides of the sensor positioning seat group are respectively provided with an air inlet pipe assembly and a plugging assembly, the air inlet pipe assembly comprises an air exhaust, a plurality of air inlet pipes and a plurality of pressure gauges are arranged on the air exhaust, and a plurality of test air inlets are arranged on the air exhaust. The test air inlet communicates with an air inlet pipe; the plugging assembly comprises a cylinder fixing plate, a plurality of cylinders are mounted on the cylinder fixing plate, and piston ends of the cylinders extend out of the cylinder fixing plate, face the sensor positioning seat and are provided with sealing gaskets. The air pressure sensor leak detection device can perform leak detection on a plurality of air pressure sensors at the same time, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensor testing and relates to a leak detection tool for multiple air pressure sensors. Background Art

[0002] The air pressure sensor is an instrument used to measure the absolute pressure of gas. It is mainly suitable for physical experiments related to gas pressure, such as gas laws, etc. It can also measure the pressure of dry, non-corrosive gases in biological and chemical experiments.

[0003] The most basic requirement for an air pressure sensor is that it cannot leak. Existing leak detection tools for air pressure sensors can only be used individually, resulting in low work efficiency and unstable detection results. Summary of the invention

[0004] The utility model aims to provide a multi-air pressure sensor leak detection tool, which can solve the above-mentioned problems and improve the detection efficiency.

[0005] According to the technical solution provided by the utility model: a multi-pressure sensor leak detection tool, including a sensor positioning seat group installed on a bottom plate, an air intake pipe assembly and a plugging assembly are respectively provided on both sides of the sensor positioning seat group, the air intake pipe assembly includes an air exhaust, a plurality of air intake pipes and a plurality of pressure gauges are installed on the air exhaust, a plurality of test air inlets are opened on the air exhaust, and the test air inlets are connected to the air intake pipe; the plugging assembly includes a cylinder fixing plate, a plurality of cylinders are installed on the cylinder fixing plate, the cylinder piston end extends out of the cylinder fixing plate toward the sensor positioning seat and a sealing gasket is installed.

[0006] As a further improvement of the utility model, the sensor positioning seat group includes a plurality of parallel sensor positioning seats; and positioning grooves are provided on the sensor positioning seats.

[0007] As a further improvement of the utility model, several air exhaust ducts are provided in the air exhaust, and the air exhaust ducts include an air intake transmission duct and a detection duct that are connected; the outer end of the air intake transmission duct is a connecting screw hole; and the test air inlet is located at the inner end of the air intake transmission duct.

[0008] As a further improvement of the present invention, the connecting screw hole and the end of the air intake pipe are adapted to have a pipe thread structure, specifically RC1 / 8.

[0009] As a further improvement of the utility model, the detection airway is vertically arranged, the lower end of the detection airway is connected to the middle part of the air intake transmission airway, and a pressure gauge is installed at the upper end of the detection airway.

[0010] As a further improvement of the utility model, a protective sleeve is installed at the front end of the sealing gasket.

[0011] As a further improvement of the utility model, a limit block is installed between the sealing gasket and the piston end of the cylinder.

[0012] As a further improvement of the utility model, the test gas source is connected to the air inlet pipe through a series component; the series component includes a transition gas block and a tee, and the transition gas block is installed with a transition air inlet joint, a transition air outlet joint, and a pressure regulating valve that are connected to each other. The tee is connected to the air inlet pipe, and adjacent tees are connected. The outer end of the transition air inlet joint is connected to the test gas source, and the outer end of the transition air outlet joint is connected to one of the tees.

[0013] The positive effects of this application are:

[0014] The utility model can perform leak detection on a plurality of air pressure sensors at the same time, thus improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view of the utility model.

[0016] Figure 2 It is a front view of the utility model.

[0017] Figure 3 It is a cross-sectional view of the gas exhaust of the utility model.

[0018] Figure 1-Figure 3 It includes a base plate 1, a sensor positioning seat 2, an exhaust 3, an air intake transmission air duct 3-1, a detection air duct 3-2, a cylinder fixing plate 4, a limit block 5, a protective cover 6, a sealing gasket 7, an air pressure sensor 8, a pressure gauge 12, an air intake pipe 13, a cylinder 14, a tee 19, a pressure regulating valve 20, a transition air intake joint 22, a transition air outlet joint 23, etc. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the solution of the utility model, 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 of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described herein. In addition, similar terms such as "including" and "having" mean that in addition to those contents already listed in "including" and "having", other contents that have not been listed can also be "included" and "having"; for example, a process, method, system, product or device that can include a series of steps or units is not necessarily limited to those steps or units that have been clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] Due to the angle of the drawing, some components may not be drawn, but their positions and connection relationships can be partially understood based on the text expression.

[0023] like Figure 1-Figure 2 As shown, the utility model is a multi-pressure sensor leak detection tool, comprising a base plate 1, a sensor positioning seat group is installed on the base plate 1, and an air intake pipe component and a blocking component are respectively arranged on both sides of the sensor positioning seat group.

[0024] The sensor positioning seat group includes several parallel sensor positioning seats 2. The sensor positioning seat 2 is provided with a positioning groove for placing the air pressure sensor 8, the air inlet end of the air pressure sensor 8 faces the air inlet pipe assembly, and the air outlet end of the air pressure sensor 8 faces the blocking assembly.

[0025] The air intake pipe assembly includes an air exhaust 3 , on which are mounted a plurality of air intake pipes 13 and a plurality of pressure gauges 12 . The air exhaust 3 is provided with a plurality of test air intake ports which are connected to the air intake pipes 13 .

[0026] Several gas exhaust ducts are provided in the gas exhaust 3, such as Figure 3 As shown, the air exhaust duct includes an air intake transmission duct 3-1 and a detection duct 3-2 which are connected. The outer end of the air intake transmission duct 3-1 is a connecting screw hole for connecting one end of the air intake pipe 13; the test air inlet is located at the inner end of the air intake transmission duct 3-1, close to the sensor positioning seat 2.

[0027] The other end of the air inlet pipe 13 is connected to a test air source.

[0028] The connecting screw hole and the end of the air inlet pipe 13 are adapted pipe thread structures, specifically RC1 / 8.

[0029] The detection airway 3-2 is arranged vertically, the lower end of the detection airway 3-2 is connected to the middle of the air inlet transmission airway 3-1, and the pressure gauge 12 is installed at the upper end of the detection airway 3-2.

[0030] The blocking assembly includes a cylinder fixing plate 4 on which a plurality of cylinders 14 are mounted. The piston ends of the cylinders 14 extend out of the cylinder fixing plate 4 toward the sensor positioning seat 2 and are mounted with sealing pads 7 .

[0031] In order to protect the air inlet end of the air pressure sensor 8 , a protective sleeve 6 is installed at the front end of the sealing gasket 7 .

[0032] In order to prevent the sealing gasket 7 from shrinking into the cylinder fixing plate 4, a limiting block 5 is installed between the sealing gasket 7 and the piston end of the cylinder 14.

[0033] The test gas source is connected to the air inlet pipe 13 through a series assembly. The series assembly includes a transition gas block and a tee 19, on which a transition gas inlet joint 22, a transition gas outlet joint 23, and a pressure regulating valve 20 are installed. The tee 19 is connected to the air inlet pipe 13, and adjacent tees 19 are connected. The outer end of the transition gas inlet joint 22 is connected to the test gas source, and the outer end of the transition gas outlet joint 23 is connected to one of the tees 19.

[0034] The working process of the utility model is as follows:

[0035] The air pressure sensor 8 is placed on the sensor positioning seat 2, and the piston rod of the cylinder 11 extends, driving the sealing gasket 7 to move toward the air pressure sensor 8 until the air exhaust 3, the air pressure sensor 8, and the sealing gasket 7 are against each other, and the test air inlet is close to the air inlet end of the air pressure sensor 8, and the air inlet pipe 13 and the air pressure sensor 8 are connected. The test air source enters the air pressure sensor 8 through the transition air inlet joint 22, the transition air block, the transition air outlet joint 23, the tee 19, and the air inlet pipe 13 in sequence, and observes whether the value of the pressure gauge 12 is the same as that of the pressure regulating valve 20.

[0036] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A multi-pressure sensor leak detection tool, comprising a base plate (1), characterized in that: A sensor positioning seat assembly is mounted on the bottom plate (1), and an air intake pipe assembly and a sealing assembly are respectively arranged on both sides of the sensor positioning seat assembly. The air intake pipe assembly comprises an air exhaust (3), and a plurality of air intake pipes (13) and a plurality of pressure gauges (12) are mounted on the air exhaust (3). The air exhaust (3) is provided with a plurality of test air intake ports, and the test air intake ports are connected to the air intake pipes (13). The sealing assembly comprises a cylinder fixing plate (4), and a plurality of cylinders (14) are mounted on the cylinder fixing plate (4). The piston ends of the cylinders (14) extend out of the cylinder fixing plate (4) toward the sensor positioning seat (2) and are installed with sealing pads (7).

2. The multi-pressure sensor leak detection tool as claimed in claim 1, characterized in that: The sensor positioning seat group comprises a plurality of parallel sensor positioning seats (2); and positioning grooves are provided on the sensor positioning seats (2).

3. The multi-pressure sensor leak detection tool as claimed in claim 1, characterized in that: A plurality of air exhaust ducts are provided in the air exhaust (3), and the air exhaust ducts include an air intake transmission duct (3-1) and a detection duct (3-2) that are connected to each other; the outer end of the air intake transmission duct (3-1) is a connecting screw hole; and the test air intake port is located at the inner end of the air intake transmission duct (3-1).

4. The multi-pressure sensor leak detection tool as claimed in claim 3, characterized in that: The connecting screw hole and the end of the air inlet pipe (13) are adapted pipe thread structures, specifically RC1 / 8.

5. The multi-pressure sensor leak detection tool as claimed in claim 3, characterized in that: The detection airway (3-2) is arranged vertically, the lower end of the detection airway (3-2) is connected to the middle of the air inlet transmission airway (3-1), and a pressure gauge (12) is installed at the upper end of the detection airway (3-2).

6. The multi-pressure sensor leak detection tool as claimed in claim 1, characterized in that: The protective sleeve (6) is installed at the front end of the sealing gasket (7).

7. The multi-pressure sensor leak detection tool as claimed in claim 1, characterized in that: A stopper (5) is installed between the sealing gasket (7) and the piston end of the cylinder (14).

8. The multi-pressure sensor leak detection tool as claimed in claim 1, characterized in that: The test gas source is connected to the air inlet pipe (13) through a series assembly; the series assembly includes a transition gas block and a tee (19); the transition gas block is provided with a transition air inlet joint (22), a transition air outlet joint (23), and a pressure regulating valve (20) that are connected to each other; the tee (19) is connected to the air inlet pipe (13); adjacent tees (19) are connected; the outer end of the transition air inlet joint (22) is connected to the test gas source; and the outer end of the transition air outlet joint (23) is connected to one of the tees (19).

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