Air tightness detection device of primary air inlet valve

Abstract

The utility model belongs to the field of air valve detection, and particularly relates to an air tightness detection device of a primary air inlet valve, which comprises an assembly block, an air delivery pipe is fixed at the bottom of the assembly block, a quick connector is fixedly mounted on one side of the assembly block, and a sealing ring is fixedly mounted in the quick connector. An air inlet pipe is fixedly installed in the quick connector, a pressure gauge is fixedly installed on one side of the air inlet pipe, and a one-way valve is fixedly installed at one end of the air inlet pipe. Through the structural design of the assembly block, the gas conveying pipe, the quick connector, the sealing ring, the gas inlet pipe, the pressure gauge and the one-way valve and through mutual cooperation of the structures, the function of detecting airtightness through high-pressure gas is achieved, the problem that the failure rate is increased due to a built-in sensor is solved, and therefore tiny gas leakage points can be found through gas; high-precision detection is carried out on the air tightness of the air inlet valve, the air tightness of the first-stage air inlet valve is ensured, and the air inlet valve cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the field of gas valve detection, in particular to an air tightness detection device for a first-stage air intake valve. Background Art

[0002] Intake valves are widely used in mechanical equipment in various fields. The quality of their air tightness affects the working efficiency and safety of mechanical equipment. The air tightness of the intake valve has an important influence on the compressor exhaust volume, volumetric specific energy, inter-stage compression ratio and exhaust temperature. During the compressor exhaust process, if the air tightness of the intake valve is poor, the gas leaks out of the compressor through the intake valve, which reduces the exhaust volume, increases energy consumption, and increases the corrosion of the valve plate and valve seat sealing surface. During the expansion and intake process, if the air tightness of the intake valve is poor, the gas leaks from the exhaust chamber through the exhaust valve into the cylinder, which not only reduces the exhaust volume and increases energy consumption, but also leads to an increase in the temperature of the gas in the cylinder, causing carbon accumulation on the valve surface and reducing the gas flow area. Therefore, the air tightness detection of the intake valve is the most important process to check whether the product is qualified.

[0003] However, according to the prior art, in order to improve the detection accuracy, a variety of sensors need to be installed inside the detection device, which increases the failure rate of the detection device and increases the investment and maintenance costs of the device. The accuracy of the detection device may also be affected by environmental factors, equipment wear or inaccurate calibration, resulting in a decrease in the accuracy of the detection results. Different types of intake valves may require different types of airtightness detection devices, which may result in the need for multiple detection equipment on the production line, further increasing the initial investment and maintenance costs.

[0004] Therefore, in order to solve the above problem, an airtightness detection device for a first-stage air intake valve is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art, the problem of increased failure rate caused by the built-in sensor of the device, the utility model provides an airtight detection device for a first-stage air intake valve.

[0006] The technical solution adopted by the utility model to solve its technical problem is: an airtight detection device for a first-stage air intake valve, comprising an assembly block, a gas delivery pipe is fixed to the bottom of the assembly block, a quick connector is fixedly installed on one side of the assembly block, a sealing ring is fixedly installed inside the quick connector, an air intake pipe is fixedly installed inside the quick connector, a pressure gauge is fixedly installed on one side of the air intake pipe, and a one-way valve is fixedly installed on one end of the air intake pipe.

[0007] Preferably, a rubber pad is fixedly mounted on the surface of the gas delivery pipe, and a fixing plate is fixedly mounted on the top of the assembly block.

[0008] Preferably, a connecting plate is threadedly connected to the top of the fixing plate, and a telescopic rod is threadedly connected to the top of the connecting plate.

[0009] Preferably, a cylinder is fixedly mounted on the top of the telescopic rod, and a mounting seat is fixedly mounted on the bottom of the cylinder.

[0010] Preferably, a bracket is fixedly mounted on the bottom of the mounting seat, and a workbench is fixedly mounted on the bottom of the bracket.

[0011] Preferably, a positioning seat is threadedly connected to the middle portion of the top of the workbench, and a plurality of positioning holes are formed on the top of the positioning seat.

[0012] Preferably, legs are fixedly mounted on both sides of the bottom of the workbench.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model realizes the function of detecting airtightness by using high-pressure gas through the structural design of the assembly block, the gas pipe, the quick connector, the sealing ring, the air intake pipe, the pressure gauge and the one-way valve, and through the mutual cooperation between the structures, and solves the problem of increased failure rate caused by the built-in sensor. Thus, the gas can be used to find tiny leakage points, and the airtightness of the air intake valve can be detected with high precision, thereby ensuring the airtightness of the first-stage air intake valve and not causing damage to the air intake valve.

[0015] 2. The utility model realizes the function of sealing the air inlet of the intake valve through the structural design of the rubber pad, thereby avoiding the possibility of gas leakage at the connection between the intake valve and the device when detecting air tightness, further increasing the accuracy of detection, and through the setting of the cylinder, it realizes automatic lifting and lowering of the gas pipe position, thereby increasing the application scope of the device and making it suitable for different types of intake valves. Through the structural design of the positioning seat and the positioning hole, the function of fixing the first-stage intake valve is realized, thereby further increasing the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0019] Figure 3 It is a partial bottom view structural diagram of the utility model;

[0020] Figure 4 It is a partial enlarged structural schematic diagram of the utility model.

[0021] In the figure: 1. Assembly block; 2. Air pipe; 3. Quick connector; 4. Sealing ring; 5. Inlet pipe; 6. Pressure gauge; 7. Check valve; 8. Rubber pad; 9. Fixing plate; 10. Connecting plate; 11. Telescopic rod; 12. Cylinder; 13. Mounting seat; 14. Bracket; 15. Workbench; 16. Positioning seat; 17. Positioning hole; 18. Leg. DETAILED DESCRIPTION

[0022] 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.

[0023] The following is combined with Figure 1-4 To further explain this application in detail,

[0024] The embodiment of the present application discloses an airtight detection device for a first-stage air intake valve, comprising an assembly block 1, a gas supply pipe 2 is fixed to the bottom of the assembly block 1, a quick connector 3 is fixedly installed on one side of the assembly block 1, a sealing ring 4 is fixedly installed inside the quick connector 3, an air intake pipe 5 is fixedly installed inside the quick connector 3, a pressure gauge 6 is fixedly installed on one side of the air intake pipe 5, and a one-way valve 7 is fixedly installed at one end of the air intake pipe 5.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 Through the structural design of the assembly block 1, the gas pipe 2, the quick connector 3, the sealing ring 4, the intake pipe 5, the pressure gauge 6, and the one-way valve 7, and through the mutual cooperation between the structures, the function of using high-pressure gas to detect air tightness is realized, and the problem of increased failure rate caused by the built-in sensor is solved. Therefore, the gas can be used to find tiny leaks and perform high-precision detection of the air tightness of the intake valve, ensuring the air tightness of the first-stage intake valve without causing damage to the intake valve.

[0026] A rubber pad 8 is fixedly mounted on the surface of the gas delivery pipe 2 , and a fixing plate 9 is fixedly mounted on the top of the assembly block 1 .

[0027] Reference Figure 3 and Figure 4Through the structural design of the rubber pad 8, the function of sealing the air inlet of the air inlet valve is achieved, thereby avoiding the possibility of gas leakage at the connection between the air inlet valve and the device when testing the air tightness, and further increasing the accuracy of the detection.

[0028] The top of the fixing plate 9 is threadedly connected to a connecting plate 10 , and the top of the connecting plate 10 is threadedly connected to a telescopic rod 11 .

[0029] Reference Figure 3 and Figure 4 Through the structural design of the connecting plate 10, it is convenient to cooperate with the fixing plate 9 to realize the function of connecting the connecting plate 10 and the telescopic rod 11, thereby realizing automated work and improving the detection efficiency.

[0030] A cylinder 12 is fixedly mounted on the top of the telescopic rod 11 , and a mounting seat 13 is fixedly mounted on the bottom of the cylinder 12 .

[0031] Reference Figure 1 and Figure 2 By setting the cylinder 12, the position of the gas pipe 2 can be automatically raised and lowered, thereby increasing the scope of application of the device and making it suitable for different types of intake valves, avoiding the large-scale deployment of detection devices, thereby reducing the initial investment and later maintenance costs. By setting the mounting seat 13, the function of modular design of the device is realized, so that it can be combined and matched according to needs, thereby realizing airtight detection devices of different specifications and functions, and improving the flexibility and customizability of the device.

[0032] A bracket 14 is fixedly mounted on the bottom of the mounting seat 13 , and a workbench 15 is fixedly mounted on the bottom of the bracket 14 .

[0033] Reference Figure 1 and Figure 2 By setting the bracket 14, the functions of supporting the cylinder 12 and the mounting seat 13 are realized, thereby ensuring the stability of the cylinder 12 during operation, thereby increasing the accuracy of the detection. By setting the workbench 15, it is convenient to support the positioning seat 16.

[0034] A positioning seat 16 is threadedly connected to the middle part of the top of the workbench 15. A plurality of positioning holes 17 are provided on the top of the positioning seat 16, which provide a safe working area and increase the safety of the device during operation.

[0035] Reference Figure 1 Through the structural design of the positioning seat 16 and the positioning hole 17, and through the mutual cooperation between the structures, the function of fixing the first-stage air intake valve is achieved, thereby the air intake valve can be quickly positioned so that its position is compatible with the air delivery pipe 2, further increasing the detection efficiency.

[0036] Support legs 18 are fixedly mounted on both sides of the bottom of the workbench 15 .

[0037] Reference Figure 1 and Figure 2 By setting the legs 18, the function of stabilizing the workbench 15 is achieved, thereby ensuring the stability of the device during operation and further increasing the safety of the device.

[0038] Working principle: When using this device, set the closed state of the air intake valve to the maximum resistance state, support the air intake valve through the positioning seat 16, fix the air intake valve through the positioning hole 17, and the cylinder 12 drives the air pipe 2 to descend through the telescopic rod 11, and lowers the air pipe 2 to the inside of the air inlet of the air intake valve. The sealing of the air inlet outlet is ensured by compressing the rubber pad 8, and a proper amount of high-pressure gas is released into the air intake valve through the air intake pipe 5. The pressure change of the pressure gauge 6 is observed to achieve the purpose of detecting the air tightness of the air intake valve. The detection time and pressure change are recorded, the high-pressure gas backflow is prevented by the one-way valve 7, and the sealing of the quick connector 3 is ensured by the sealing ring 4.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An airtightness detection device for a first-stage air intake valve, characterized in that: The invention comprises an assembly block (1); a gas delivery pipe (2) is fixed at the bottom of the assembly block (1); a quick connector (3) is fixedly installed on one side of the assembly block (1); a sealing ring (4) is fixedly installed inside the quick connector (3); an air intake pipe (5) is fixedly installed inside the quick connector (3); a pressure gauge (6) is fixedly installed on one side of the air intake pipe (5); and a one-way valve (7) is fixedly installed on one end of the air intake pipe (5).

2. The airtightness detection device for a primary air intake valve according to claim 1, characterized in that: A rubber pad (8) is fixedly mounted on the surface of the gas delivery pipe (2), and a fixing plate (9) is fixedly mounted on the top of the assembly block (1).

3. The airtightness detection device for a primary air intake valve according to claim 2, characterized in that: The top of the fixing plate (9) is threadedly connected to a connecting plate (10), and the top of the connecting plate (10) is threadedly connected to a telescopic rod (11).

4. The airtightness detection device for a primary air intake valve according to claim 3, characterized in that: A cylinder (12) is fixedly mounted on the top of the telescopic rod (11), and a mounting seat (13) is fixedly mounted on the bottom of the cylinder (12).

5. The airtightness detection device for a primary air intake valve according to claim 4, characterized in that: A bracket (14) is fixedly mounted on the bottom of the mounting seat (13), and a workbench (15) is fixedly mounted on the bottom of the bracket (14).

6. The airtightness detection device for a primary air intake valve according to claim 5, characterized in that: A positioning seat (16) is threadedly connected to the middle portion of the top of the workbench (15), and a plurality of positioning holes (17) are formed on the top of the positioning seat (16).

7. The airtightness detection device for a primary air intake valve according to claim 5, characterized in that: Support legs (18) are fixedly mounted on both sides of the bottom of the workbench (15).

Images