Engine airtightness leakage test inspection plugging head

Abstract

The utility model relates to an engine airtightness leakage test inspection plugging head, which comprises a support frame, a first driving cylinder, a second driving cylinder, a third driving cylinder, a first oil cavity plug, a plurality of first air passage plugs and a plurality of second air passage plugs, and the first driving cylinder, the second driving cylinder and the third driving cylinder are all mounted on the support frame. When the engine airtightness leakage test inspection plugging head is used, the engine is arranged below the support frame, and then the first oil cavity plug, the plurality of first air channel plugs and the plurality of second air channel plugs are respectively driven by the first driving cylinder, the second driving cylinder and the third driving cylinder to move towards the engine. Then air pressure is injected into the cavity through the first air inlet and the second air inlet, whether the engine cylinder leaks air or not is observed, one-time detection is achieved, multiple devices are not needed, and the high manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine air tightness detection, and in particular relates to an engine air tightness leakage test plugging head. Background Art

[0002] The engine assembly of a car consists of an engine body, a crank-connecting rod mechanism, and a valve mechanism. In order to ensure the quality of the engine, after the engine is assembled, leakage detection inside the engine is a very important process in the assembly production process. However, current detection equipment generally seals multiple air ports of the engine separately to perform internal leakage detection, then seals the oil chamber for detection, injects air pressure into the cavity, and observes whether the engine cylinder is leaking. This requires multiple devices, has high manufacturing costs, and is not automated. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an engine airtight leak test plugging head, which can be tested at one time, does not require multiple devices, and reduces high manufacturing costs.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an engine airtight leak test plugging head, including a support frame, a first driving cylinder, a second driving cylinder, a third driving cylinder, a first oil chamber plug, a plurality of first air duct plugs and a plurality of second air duct plugs, the first driving cylinder, the second driving cylinder and the third driving cylinder are all installed on the support frame, the first oil chamber plug is installed on the output end of the first driving cylinder, and the first oil chamber plug is connected to a first air inlet, a plurality of the first air duct plugs are all installed on the output end of the second driving cylinder, and each first air duct plug is connected to a second air inlet, and a plurality of the second air duct plugs are installed on the output end of the third driving cylinder.

[0005] The first airway plug includes a first mounting seat, a first sliding rod and a first sealing head, one end of the first sliding rod slides on the first mounting seat, the other end of the first sliding rod is fixedly connected to the first sealing head, a first spring is sleeved on the first sliding rod, the first spring is located between the first mounting seat and the first sealing head, a first air outlet is provided on the fitting surface of the first sealing head and the engine, the first air inlet is mounted on the first sealing head and is connected to the first air outlet.

[0006] A first sealing ring is provided on the fitting surface between the first plugging head and the engine.

[0007] The output end of the second driving cylinder is equipped with a first mounting plate fixedly connected to a plurality of first airway plugs.

[0008] The second airway plug includes a second mounting seat, a second sliding rod and a second sealing head. One end of the second sliding rod slides on the second mounting seat, and the other end of the second sliding rod is fixedly connected to the second sealing head. A second spring is sleeved on the second sliding rod, and the second spring is located between the second mounting seat and the second sealing head. A second sealing ring is provided on the fitting surface of the second sealing head and the engine.

[0009] The output end of the third driving cylinder is equipped with a second mounting plate fixedly connected to a plurality of second airway plugs.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model discloses an engine airtight leak test plugging head. When in use, the engine is placed below a support frame, and then a first oil chamber plugging head, a plurality of first air passage plugging heads and a plurality of second air passage plugging heads are respectively driven by a first driving cylinder, a second driving cylinder and a third driving cylinder to move toward the engine, thereby plugging the oil port and the air port of the engine, and then air pressure is injected into the cavity through a first air inlet and a second air inlet to observe whether the engine cylinder is leaking, thereby realizing a one-time detection without the need for a plurality of devices, thereby reducing the high manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a plugging head for checking airtightness of an engine according to the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the first airway plug of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the second airway plug of the utility model.

[0015] Markings in the figure: 1. support frame; 2. first drive cylinder; 3. second drive cylinder; 4. third drive cylinder; 5. first oil chamber plug; 6. first airway plug; 7. second airway plug; 8. first air inlet; 9. second air inlet; 10. first mounting seat; 11. first sliding rod; 12. first sealing head; 13. first spring; 14. first sealing ring; 15. second mounting seat; 16. second sliding rod; 17. second sealing head; 18. second spring; 19. second sealing ring. DETAILED DESCRIPTION

[0016] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0017] like Figure 1-Figure 3As shown, this embodiment provides an engine airtight leak test plugging head, including a support frame 1, a first driving cylinder 2, a second driving cylinder 3, a third driving cylinder 4, a first oil chamber plug 5, a plurality of first airway plugs 6 and a plurality of second airway plugs 7, the first driving cylinder 2, the second driving cylinder 3 and the third driving cylinder 4 are all installed on the support frame 1, the first oil chamber plug 5 is installed on the output end of the first driving cylinder 2, and the first oil chamber plug 5 is connected to a first air inlet 8, the plurality of first airway plugs 6 are all installed on the output end of the second driving cylinder 3, and each first airway plug 6 is connected to a second air inlet 9, and the plurality of second airway plugs 7 are installed on the output end of the third driving cylinder 4. When in use, the engine is placed under the support frame 1, and the first oil chamber plug 5, multiple first air duct plugs 6 and multiple second air duct plugs 7 are driven toward the engine by the first drive cylinder 2, the second drive cylinder 3 and the third drive cylinder 4 respectively, thereby blocking the oil port and air port of the engine, and then air pressure is injected into the cavity through the first air inlet 8 and the second air inlet 9 to observe whether the engine cylinder is leaking, thereby realizing a one-time detection without the need for multiple devices, reducing the high manufacturing cost.

[0018] Further, the first airway plug 6 includes a first mounting seat 10, a first sliding rod 11 and a first plugging head 12, one end of the first sliding rod 11 slides on the first mounting seat 10, the other end of the first sliding rod 11 is fixedly connected to the first plugging head 12, a first spring 13 is sleeved on the first sliding rod 11, the first spring 13 is located between the first mounting seat 10 and the first plugging head 12, a first air outlet is provided on the fitting surface of the first plugging head 12 and the engine, and the first air inlet 8 is installed on the first plugging head 12 and communicated with the first air outlet. Specifically, a first sealing ring 14 is provided on the fitting surface of the first plugging head 12 and the engine. The output end of the second driving cylinder 3 is installed with a first mounting plate fixedly connected to a plurality of first airway plugs 6. The plugging is performed by the first plugging head 12, and the first spring 13 is provided so that the first sliding rod 11 can move on the first mounting seat 10, so that the first plugging head 12 performs adaptive plugging, and the first sealing ring 14 increases the sealing performance.

[0019] Further, the second airway plug 7 includes a second mounting seat 15, a second sliding rod 16 and a second plugging head 17, one end of the second sliding rod 16 slides on the second mounting seat 15, the other end of the second sliding rod 16 is fixedly connected to the second plugging head 17, a second spring 18 is sleeved on the second sliding rod 16, the second spring 18 is located between the second mounting seat 15 and the second plugging head 17, and a second sealing ring 19 is provided on the fitting surface of the second plugging head 17 and the engine. Specifically, a second mounting plate fixedly connected to a plurality of second airway plugs 7 is installed at the output end of the third driving cylinder 4. The plugging is performed by the second plugging head 17, and the second spring 18 is provided to enable the second sliding rod 16 to move on the second mounting seat 15, so that the second plugging head 17 performs adaptive plugging, and the second sealing ring 19 increases the sealing performance.

[0020] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. An engine airtight leak test plugging head, characterized in that: It includes a support frame, a first driving cylinder, a second driving cylinder, a third driving cylinder, a first oil chamber plug, a plurality of first air duct plugs and a plurality of second air duct plugs. The first driving cylinder, the second driving cylinder and the third driving cylinder are all installed on the support frame. The first oil chamber plug is installed on the output end of the first driving cylinder, and the first oil chamber plug is connected to a first air inlet. The plurality of the first air duct plugs are all installed on the output end of the second driving cylinder, and each first air duct plug is connected to a second air inlet. The plurality of the second air duct plugs are installed on the output end of the third driving cylinder.

2. The engine airtight leak test plugging head according to claim 1, characterized in that: The first airway plug includes a first mounting seat, a first sliding rod and a first sealing head, one end of the first sliding rod slides on the first mounting seat, the other end of the first sliding rod is fixedly connected to the first sealing head, a first spring is sleeved on the first sliding rod, the first spring is located between the first mounting seat and the first sealing head, a first air outlet is provided on the fitting surface of the first sealing head and the engine, the first air inlet is mounted on the first sealing head and is connected to the first air outlet.

3. The engine airtight leak test plugging head according to claim 2, characterized in that: A first sealing ring is provided on the fitting surface between the first plugging head and the engine.

4. The engine airtight leak test plugging head according to claim 1, characterized in that: The output end of the second driving cylinder is equipped with a first mounting plate fixedly connected to a plurality of first airway plugs.

5. The engine airtight leak test plugging head according to claim 1, characterized in that: The second airway plug includes a second mounting seat, a second sliding rod and a second sealing head. One end of the second sliding rod slides on the second mounting seat, and the other end of the second sliding rod is fixedly connected to the second sealing head. A second spring is sleeved on the second sliding rod, and the second spring is located between the second mounting seat and the second sealing head. A second sealing ring is provided on the fitting surface of the second sealing head and the engine.

6. The engine airtight leak test plugging head according to claim 1, characterized in that: The output end of the third driving cylinder is equipped with a second mounting plate fixedly connected to a plurality of second airway plugs.

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