Internal combustion locomotive accessory air tightness detection tool

Abstract

The utility model relates to a diesel locomotive accessory air tightness detection tool, and belongs to the technical field of diesel locomotive accessory air tightness detection equipment in the metallurgical industry. According to the technical scheme, a supporting seat (4) is fixed to a base (1), an armorplate glass plate (5) is arranged on the supporting seat (4), a lower glass box (6) is fixed to the armorplate glass plate (5), an upper glass box (11) is sealed on the lower glass box (6), and a fixing table (12) matched with diesel locomotive accessories is arranged on the armorplate glass plate (5) in the lower glass box (6); one end of the exhaust pipe (13) and one end of the air inlet pipe (17) respectively penetrate through the tempered glass plate (5), the other end of the exhaust pipe (13) is connected with the vacuum pump (15), the vacuum pump (15) is connected with the exhaust pipe (16), and the other end of the air inlet pipe (17) is provided with a sealing valve (18). The beneficial effect of the utility model is that the internal combustion engine fitting can be prevented from being rusted due to water stain during air tightness detection.

Description

Technical Field

[0001] This utility model relates to a tool for testing the air tightness of internal combustion locomotive parts, belonging to the technical field of air tightness testing equipment for internal combustion locomotive parts in the metallurgical industry. Background Technology

[0002] An internal combustion engine is a type of power machinery. It is a heat engine that converts the heat energy released by burning fuel inside the machine into power. In a broad sense, internal combustion engines include not only reciprocating piston engines, rotary piston engines, and free piston engines, but also rotary impeller jet engines. However, the term "internal combustion engine" usually refers to piston engines, which were previously the most common type. Piston engines mix fuel and air and burn them in their cylinders. The heat energy released causes high-temperature, high-pressure gas to be generated in the cylinders. The gas expands and pushes the piston to do work. The mechanical work is then output through the crankshaft and connecting rod mechanism or other mechanisms to drive the driven machinery. Common examples include diesel engines and gasoline engines. By converting internal energy into mechanical energy, internal energy is changed through the doing of work.

[0003] However, most existing technologies for testing the airtightness of internal combustion engine parts use a water tank. The parts to be tested are placed in water, and the airtightness is judged based on the changes in water bubbles. This testing method will cause the internal combustion engine parts to become water-stained, leading to rust and affecting the service life of the engine. Utility Model Content

[0004] The purpose of this utility model is to provide a tool for testing the air tightness of internal combustion engine parts, which can prevent the parts from getting wet and rusting during air tightness testing, thus solving the problems existing in the background art.

[0005] The technical solution of this utility model is:

[0006] An airtightness testing tool for diesel locomotive parts includes a base, a support, a tempered glass plate, a lower glass box, an upper glass box, a fixing platform, an extraction pipe, a vacuum pump, an exhaust pipe, and an intake pipe. The support is fixed on the base, the tempered glass plate is placed on the support, the lower glass box is fixed on the tempered glass plate, and the upper glass box is sealed on the lower glass box. The tempered glass plate inside the lower glass box is provided with a fixing platform that mates with the diesel locomotive parts. One end of the extraction pipe and the intake pipe pass through the tempered glass plate, and the other end of the extraction pipe is connected to the vacuum pump. The vacuum pump is connected to the exhaust pipe, and the other end of the intake pipe is provided with a sealing valve.

[0007] A sealing gasket is provided between the upper glass box and the lower glass box.

[0008] The sealing gasket is fixed between the upper and lower glass boxes by connecting seat one and connecting seat two.

[0009] Connector 1 is fixed to the lower glass box, and connector 2 is fixed to the upper glass box. Connector 1 and connector 2 are embedded together.

[0010] A sealing strip is provided between the lower glass box and the tempered glass plate.

[0011] The vacuum pump is fixed on the base.

[0012] The gaps between the exhaust pipe and the tempered glass plate, as well as the gaps between the intake pipe and the tempered glass plate, are all equipped with sealing rings.

[0013] The beneficial effect of this utility model is that it can prevent internal combustion engine parts from getting rusted when they get wet during airtightness testing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an overall sectional view of the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0017] In the diagram: 1. Base, 2. Sealing structure, 3. Vacuum discharge structure, 4. Support base, 5. Tempered glass plate, 6. Lower glass box, 7. Sealing strip, 8. Connecting seat one, 9. Sealing gasket, 10. Connecting seat two, 11. Upper glass box, 12. Fixing platform, 13. Evacuation pipe, 14. Sealing ring, 15. Vacuum pump, 16. Exhaust pipe, 17. Inlet pipe, 18. Sealing valve. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] See attached document Figure 1-3 An airtightness testing tool for internal combustion locomotive parts includes a base 1, a support 4, a tempered glass plate 5, a lower glass box 6, an upper glass box 11, a fixed platform 12, an extraction pipe 13, a vacuum pump 15, an exhaust pipe 16, and an intake pipe 17. The support 4 is fixed on the base 1, the tempered glass plate 5 is placed on the support 4, the lower glass box 6 is fixed on the tempered glass plate 5, and the upper glass box 11 is sealed on the lower glass box 6. The tempered glass plate 5 inside the lower glass box 6 is provided with a fixed platform 12 that cooperates with the internal combustion locomotive parts. One end of the extraction pipe 13 and the intake pipe 17 respectively penetrate the tempered glass plate 5, the other end of the extraction pipe 13 is connected to the vacuum pump 15, the vacuum pump 15 is connected to the exhaust pipe 16, and the other end of the intake pipe 17 is provided with a sealing valve 18.

[0020] In this embodiment, refer to the appendix Figure 1-3 The testing tool includes a base 1, a sealing structure 2, and a vacuum discharge structure 3, wherein:

[0021] The sealing structure 2 includes a support base 4, a tempered glass plate 5, a lower glass box 6, a sealing strip 7, a connecting seat 1 8, a sealing gasket 9, a connecting seat 2 10, an upper glass box 11, and a fixing platform 12. The support base 4 is fixed to the base 1, the tempered glass plate 5 is fixed to the support base 4, the lower glass box 6 is sealed above the tempered glass plate 5 by the sealing strip 7, the lower glass box 6 is made of tempered glass, the connecting seat 1 8 is sealed on the edge of the lower glass box 6, the connecting seat 1 8 is made of stainless steel, the sealing gasket 9 is sealed in the groove of the connecting seat 1 8, the sealing gasket 9 is made of silicone, the connecting seat 2 10 is snapped onto the connecting seat 1 8, the heads of the connecting seat 1 8 and the connecting seat 2 10 can be interlocked, and the middle is connected and sealed by the sealing gasket 9, the lower edge of the upper glass box 11 is sealed on the connecting seat 2 10, the upper glass box 11 is made of tempered glass, and the fixing platform 12 is fixed on the bottom of the tempered glass plate 5 inside the lower glass box 6.

[0022] The vacuum discharge structure 3 includes a suction pipe 13, a sealing ring 14, a vacuum pump 15, an exhaust pipe 16, an intake pipe 17, and a sealing valve 18. The suction pipe 13 passes through the tempered glass plate 5. The sealing ring 14 seals the gap between the suction pipe 13 and the tempered glass plate 5. The vacuum pump 15 is connected to the sealing ring 14. The exhaust pipe 16 is connected to the vacuum pump 15. The intake pipe 17 passes through the tempered glass plate 5, and the sealing ring 14 seals the gap between the intake pipe 17 and the tempered glass plate 5. The sealing valve 18 is fixedly installed on the intake pipe 17.

[0023] In use, first inject colored gas into the sealed cavity of the car parts, then place the car parts on the fixed platform 12 and let them stand still. Then, the second connecting seat 10 on the upper glass box 11 is placed on the first connecting seat 8. At this time, the sealing gasket 9 seals between the first connecting seat 8 and the second connecting seat 10. Then, control the vacuum pump 15 to draw air from the sealed space formed by the lower glass box 6 and the upper glass box 11 and discharge it through the exhaust pipe 16, thereby forming a negative pressure. At this time, observe whether there is colored gas flowing out of the car parts through the upper glass box 11 to judge the sealing performance.

Claims

1. A tool for detecting air tightness of a locomotive component of an internal combustion engine, characterized by: The utility model relates to a kind of vacuum test chamber, including base (1), support seat (4), toughened glass plate (5), lower glass box (6), upper glass box (11), fixed platform (12), suction pipe (13), vacuum pump (15), exhaust pipe (16) and air inlet pipe (17), support seat (4) is fixed on base (1), toughened glass plate (5) is set on support seat (4), lower glass box (6) is fixed on toughened glass plate (5), upper glass box (11) is sealed on lower glass box (6), and fixed platform (12) is equipped on toughened glass plate (5) in lower glass box (6) and cooperates with internal combustion engine accessory;Suction pipe (13) and air inlet pipe (17) one end are respectively through toughened glass plate (5), the other end of suction pipe (13) is connected with vacuum pump (15), vacuum pump (15) is connected with exhaust pipe (16), and the other end of air inlet pipe (17) is equipped with sealing valve (18).

2. A tool for detecting air tightness of a component of an internal combustion engine vehicle according to claim 1, characterized in that: Sealing rubber pad (9) is arranged between upper glass box (11) and lower glass box (6).

3. A tool for detecting air tightness of a fitting of an internal combustion engine vehicle according to claim 2, characterized in that: The sealing rubber pad (9) is fixed between the upper glass box (11) and the lower glass box (6) through the connecting seat one (8) and the connecting seat two (10).

4. The tool for detecting air tightness of a component of an internal combustion engine vehicle according to claim 3, characterized in that: The connecting seat one (8) is fixed on the lower glass box (6), and the connecting seat two (10) is fixed on the upper glass box (11).

5. The tool for detecting air tightness of a locomotive accessory of claim 1, wherein: The lower glass box (6) is provided with a sealing rubber strip (7) between the toughened glass plate (5).

6. A tool for detecting air tightness of a locomotive component according to claim 1, wherein: The vacuum pump (15) is fixed on the base (1).

7. The tool of claim 1 wherein: The gap between the suction pipe (13) and the toughened glass plate (5) and the gap between the air inlet pipe (17) and the toughened glass plate (5) are both provided with a sealing rubber ring (14).

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