Engine air tightness detection device

Abstract

An engine airtightness detection device is characterized in that a sliding plate is arranged on the upper end face of a bottom plate, a placement plate is arranged above the sliding plate, a fixing column is fixedly connected with the placement plate, an electric push rod and a ventilation plate are arranged on the lower end face of an upper fixing plate, the ventilation plate is fixedly connected with the electric push rod, and an airtight head is fixedly connected with the ventilation plate. The extending plate is fixedly connected with the rear end face of the sliding plate, the threaded telescopic device is fixedly connected with the extending plate, a stand column is arranged on the upper end face of the bottom plate, a nut is arranged at the upper end of the stand column, an air box is arranged on the upper end face of the upper fixing plate, a warning lamp is arranged on the upper end face of the air box, and an air pipe is arranged at the lower end of the air box. A limiting plate is arranged on the upper end face of the bottom plate, and a driving box is arranged on the rear end face of the sliding plate. The utility model has the advantages that the spring is arranged for damping, so that a buffering effect can be provided during accidental collision, the impact force to equipment and operators is reduced, and the risk of injury to the operators and the equipment when an accident occurs is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an engine air tightness detection device. Background Art

[0002] An engine is a device that converts fuel into mechanical energy and is widely used in vehicles such as automobiles, airplanes, and ships. It is an important support for the development of modern industry and one of the key technologies to promote social and economic development. The history of engines can be traced back to ancient times. The earliest gunpowder engine appeared in China in the 9th century AD. This simple device uses the pressure generated by the explosion of gunpowder to drive mechanical movement. With the advancement of science and technology, people began to study more efficient and reliable engines. From the late 19th century to the early 20th century, the development of internal combustion engines made a breakthrough. German engineer Nikolaus Otto invented the first four-stroke gasoline engine, which used a mixture of gasoline and air to burn in the cylinder to produce high-pressure gas to drive the piston movement, which was finally converted into mechanical energy. This invention laid the foundation for the modern internal combustion engine and is widely used in automobiles and industrial machinery. With the continuous advancement of technology, the performance and efficiency of the engine have been significantly improved. The application of advanced technologies such as fuel injection technology, turbochargers, and variable valve timing has made the engine more powerful, with lower fuel consumption and cleaner emissions.

[0003] The patent number CN216717746U in the prior art discloses an air tightness detection device for an engine oil pan, including a carrier assembly, an oil pan, a carrier plate, an inflation detection assembly, a pressing assembly, a horizontal connecting plate and a clamping assembly. The carrier assembly is used to place the oil pan, the carrier assembly includes a horizontally movable carrier plate, the inflation detection assembly is located at the lower end of the oil pan, the pressing assembly includes a vertically movable horizontal connecting plate, and the horizontal connecting plate is located above the oil pan, the clamping assembly is in contact with the oil pan, and the distance between the two groups of second adjusting devices can be adjusted according to the contour of the oil pan through the first adjusting device, so that the two groups of second adjusting devices can be moved to the edge to be pressed of the oil pan, the practicability is strong, each group of second adjusting devices can be adjusted separately, so that each group of clamping mechanisms can be aligned with the clamping point, the flexibility is strong, and it is suitable for various types of oil pans.

[0004] However, the air tightness detection device of the engine oil pan in the prior art still has the following disadvantages:

[0005] 1. The inflation detection device of the air tightness detection device of the engine oil pan in the above utility model is not provided with a spring, and cannot be buffered in the event of an accidental impact. Such disadvantages include: lack of safety protection: the inflation detection device without a spring cannot be buffered in the event of an accidental impact, which is easy to cause damage or rupture of the equipment, thereby bringing potential safety risks to the operator. Limited reliability: without a spring as a buffer device, the structure of the inflation detection device is prone to deformation, loosening or failure when subjected to external impact, thereby affecting the accuracy and reliability of its air tightness detection. Short equipment life: in the event of an accidental impact, the inflation detection device without a spring is prone to damage or rupture of parts. This will lead to frequent replacement of parts to maintain normal operation, increase maintenance and replacement costs, and shorten the service life of the equipment. Inaccurate test results: due to the lack of a spring for buffering, the internal structure of the inflation detection device may be displaced or deformed after being subjected to external impact, thereby affecting the accuracy of the air tightness test results. This will cause trouble to subsequent maintenance and repair work, and may lead to incorrect judgments and operations. Utility Model Content

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An engine air tightness detection device, comprising:

[0008] A bottom plate, wherein a sliding plate is provided on the upper end surface of the bottom plate, and the sliding plate is fixedly connected to the bottom plate;

[0009] A sliding plate, a placement plate is provided above the sliding plate, and the placement plate is slidably connected to the sliding plate;

[0010] A fixed column, wherein the fixed column is fixedly connected to the placement plate;

[0011] An upper fixed plate, wherein an electric push rod is provided on the lower end surface of the upper fixed plate, and the electric push rod is fixedly connected to the upper fixed plate;

[0012] A ventilation plate, wherein the ventilation plate is fixedly connected to the electric push rod;

[0013] An airtight head, the airtight head is fixedly connected to the ventilation plate;

[0014] An extension plate, the extension plate being fixedly connected to the rear end surface of the sliding plate;

[0015] A threaded telescopic device is fixedly connected to the extension plate.

[0016] Furthermore, a column is provided on the upper end surface of the base plate, the column is fixedly connected to the base plate, a nut is provided on the upper end of the column, the nut is threadedly connected to the column, the column is slidably connected to the upper fixing plate, and the nut limits the upper fixing plate.

[0017] Furthermore, an air box is provided on the upper end surface of the upper fixed plate, and the air box is fixedly connected to the upper fixed plate. A warning light is provided on the upper end surface of the air box, and the warning light is fixedly connected to the air box. An air pipe is provided at the lower end of the air box, and the lower end of the air pipe is fixedly connected to the ventilation plate.

[0018] Furthermore, a limit plate is provided on the upper end surface of the bottom plate, and the limit plate is fixedly connected to the bottom plate. A drive box is provided on the rear end surface of the sliding plate, and the drive box is fixedly connected to the sliding plate.

[0019] Further, the airtight head comprises:

[0020] A telescopic gas rod, wherein a spring is provided on the outside of the telescopic gas rod, and the spring is slidably connected to the telescopic gas rod;

[0021] A nozzle is fixedly connected to the telescopic gas rod.

[0022] The threaded expansion device comprises:

[0023] A rotating connecting shaft, wherein a threaded rod is provided at the upper end of the rotating connecting shaft;

[0024] A limiting ring 1, wherein the upper and lower end surfaces of the limiting ring 1 are fixedly connected to the rotating connecting shaft and the threaded rod;

[0025] A second limiting ring, wherein the second limiting ring is fixedly connected to the threaded rod;

[0026] A limiting ring three, wherein the limiting ring three is fixedly connected to the upper end of the threaded rod;

[0027] Empty tube one, the rotating connecting shaft penetrates the empty tube one;

[0028] Empty pipe 2, wherein the empty pipe 2 is threadedly connected to the threaded rod;

[0029] Empty pipe three, the empty pipe three being threadedly connected to the threaded rod;

[0030] The empty pipe one is slidably connected to the empty pipe two, and the empty pipe two is slidably connected to the empty pipe three.

[0031] The advantages of the utility model compared with the existing technology are:

[0032] 1. The advantages of the airtight head of the engine airtightness detection device of the utility model being provided with a spring for shock absorption include: increasing safety: the airtight head is provided with a spring for shock absorption, which can provide a buffering effect in the event of an accidental collision and reduce the impact force on the equipment and operators. This helps to reduce the risk of injury to personnel and equipment in the event of an accident and improve the safety of the working environment. Improving equipment reliability: the spring shock absorber can effectively reduce the impact of external impact on the airtight head, reduce the deformation and looseness of the structure, thereby improving the reliability and stability of the airtightness detection device. This helps to reduce the risk of equipment damage and extend the service life of the equipment. Improving detection accuracy: the spring shock absorber can eliminate the interference of external impact on the airtight head and maintain its original accurate position and shape. This ensures that the data and results of the airtightness detection are more accurate and reliable, and improves the accuracy and credibility of the detection. Convenient maintenance and repair: the spring shock absorber can reduce the impact and damage to the airtight head and reduce the possibility of wear and damage to parts. This makes maintenance and repair work more convenient and economical, reducing downtime and repair costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional engine air tightness detection device of the utility model. Figure 1 .

[0034] Figure 2 It is a three-dimensional engine air tightness detection device of the utility model. Figure 2 .

[0035] Figure 3 It is a stereoscopic diagram of the airtight head of the engine airtightness detection device of the utility model.

[0036] Figure 4 It is a half-section view of a threaded telescopic device of an engine air tightness detection device of the utility model.

[0037] As shown in the figure: 1. Base plate; 2. Sliding plate; 3. Placement plate; 4. Fixed column; 5. Vertical column; 6. Nut; 7. Upper fixed plate; 8. Air box; 9. Air pipe; 10. Electric push rod; 11. Airtight head; 1101. Telescopic air rod; 1102. Spring; 1103. Nozzle; 12. Extension plate; 13. Limit plate; 14. Drive box; 15. Threaded telescopic device; 1501. Rotating connecting shaft; 1502. Threaded rod; 1503. Limit ring one; 1504. Limit ring two; 1505. Limit ring three; 1506. Empty pipe one; 1507. Empty pipe two; 1508. Empty pipe three; 16. Warning light; 17. Ventilation plate. DETAILED DESCRIPTION

[0038] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0039] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0040] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0041] like Figures 1 to 4 As shown in the figure, the technical solution of the utility model is: an engine air tightness detection device, comprising: the upper end face of the base plate 1 is connected to the sliding plate 2, the sliding plate 2 is fixedly connected to the base plate 1, the upper side of the sliding plate 2 is connected to the placement plate 3, the placement plate 3 is slidably connected to the sliding plate 2, the placement plate 3 is used to place the engine, the fixing column 4 is fixedly connected to the placement plate 3, the fixing column 4 is used to fix the engine, the electric push rod 10 is fixedly connected to the upper fixing plate 7, the electric push rod 10 is used to press down the ventilation plate 17, the ventilation plate 17 is fixedly connected to the electric push rod 10, the airtight head 11 is fixedly connected to the ventilation plate 17, the airtight head 11 is used to monitor the engine, the extension plate 12 is fixedly connected to the rear end face of the sliding plate 2, and the threaded telescopic device 15 is fixedly connected to the extension plate 12.

[0042] like Figures 1 to 4 As shown in the figure, the upper end surface of the bottom plate 1 is connected to the column 5, the upper end of the column 5 is connected to the nut 6, the column 5 is used to support the upper fixed plate 7, the column 5 is slidably connected to the upper fixed plate 7, and the nut 6 limits the upper fixed plate 7.

[0043] like Figures 1 to 4 As shown in the figure, the upper end face of the upper fixed plate 7 is connected to the air box 8, and the air box 8 is fixedly connected to the upper fixed plate 7. The upper end face of the air box 8 is connected to the warning light 16, and the warning light 16 is fixedly connected to the air box 8. The warning light 16 is used to warn of the detection results. The lower end of the air box 8 is connected to the air pipe 9, and the lower end of the air pipe 9 is fixedly connected to the ventilation plate 17, and the ventilation plate 17 is used to diffuse the gas in the air box 8.

[0044] like Figures 1 to 4 As shown in the figure, the upper end face of the base plate 1 is connected to a limit plate 13, the limit plate 13 is fixedly connected to the base plate 1, the limit plate 13 can be used to limit the sliding plate 2, the rear end face of the sliding plate 2 is connected to a drive box 14, the drive box 14 is fixedly connected to the sliding plate 2, and the drive box 14 is used to provide power for the sliding of the sliding plate 2.

[0045] like Figures 1 to 4As shown in the figure, the airtight head 11 includes: a telescopic gas rod 1101, a spring 1102 connected to the outside of the telescopic gas rod 1101, the spring 1102 is slidably connected to the telescopic gas rod 1101, and the nozzle 1103 is fixedly connected to the telescopic gas rod 1101, and the spring 1102 is used to buffer when the telescopic gas rod 1101 is squeezed.

[0046] like Figures 1 to 4 As shown in the figure, the threaded telescopic device 15 includes: a rotating connecting shaft 1501, the upper end of the rotating connecting shaft 1501 is connected to the threaded rod 1502, the upper and lower end surfaces of the limiting ring 1503 are fixedly connected to the rotating connecting shaft 1501 and the threaded rod 1502, the limiting ring 1503 can prevent the empty tube 1506 from falling off, the limiting ring 2 1504 is fixedly connected to the threaded rod 1502, the limiting ring 3 1505 is fixedly connected to the upper end of the threaded rod 1502, the rotating connecting shaft 1501 penetrates the empty tube 1506, the empty tube 2 1507 is threadedly connected to the threaded rod 1502, the empty tube 3 1508 is threadedly connected to the threaded rod 1502, the empty tube 1506 is slidably connected to the empty tube 2 1507, and the empty tube 2 1507 is slidably connected to the empty tube 3 1508.

[0047] In specific use, the device is placed in a suitable position, and then the engine is placed on the placement plate 3, and the engine is fixed with the fixing column 4, and then the drive box 14 is started to drive the threaded rod 1502 to rotate, and the threaded rod 1502 drives the empty pipe 2 1507 and the empty pipe 3 1508 to rotate and rise, pushing and retracting the sliding plate 2, and after reaching the position, the extension plate 12 is limited, and then the electric push rod 10 is started to press the ventilation plate 17 down, and then the airtight head 11 is aligned with the engine sealing test port, and at the same time the spring 1102 can be used for buffering and shock absorption, and then the air box 8 is started for testing, and the warning light 16 can display different colors according to the test results.

[0048] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An engine air tightness detection device, characterized in that: include: A bottom plate (1), wherein a sliding plate (2) is provided on the upper end surface of the bottom plate (1), and the sliding plate (2) is fixedly connected to the bottom plate (1); A sliding plate (2), a placement plate (3) is provided above the sliding plate (2), and the placement plate (3) is slidably connected to the sliding plate (2); A fixed column (4), wherein the fixed column (4) is fixedly connected to the placement plate (3); An upper fixed plate (7), wherein an electric push rod (10) is provided on the lower end surface of the upper fixed plate (7), and the electric push rod (10) is fixedly connected to the upper fixed plate (7); A ventilation plate (17), wherein the ventilation plate (17) is fixedly connected to the electric push rod (10); An airtight head (11), wherein the airtight head (11) is fixedly connected to the ventilation plate (17); An extension plate (12), wherein the extension plate (12) is fixedly connected to the rear end surface of the sliding plate (2); A threaded telescopic device (15), wherein the threaded telescopic device (15) is fixedly connected to the extension plate (12).

2. The engine air tightness detection device according to claim 1, characterized in that: A column (5) is provided on the upper end surface of the base plate (1), the column (5) is fixedly connected to the base plate (1), a nut (6) is provided on the upper end of the column (5), the nut (6) is threadedly connected to the column (5), the column (5) is slidably connected to an upper fixing plate (7), and the nut (6) limits the upper fixing plate (7).

3. The engine air tightness detection device according to claim 1, characterized in that: An air box (8) is provided on the upper end surface of the upper fixed plate (7), and the air box (8) is fixedly connected to the upper fixed plate (7). A warning light (16) is provided on the upper end surface of the air box (8), and the warning light (16) is fixedly connected to the air box (8). An air pipe (9) is provided at the lower end of the air box (8), and the lower end of the air pipe (9) is fixedly connected to a ventilation plate (17).

4. The engine air tightness detection device according to claim 1, characterized in that: A limit plate (13) is provided on the upper end surface of the bottom plate (1), and the limit plate (13) is fixedly connected to the bottom plate (1). A drive box (14) is provided on the rear end surface of the sliding plate (2), and the drive box (14) is fixedly connected to the sliding plate (2).

5. The engine air tightness detection device according to claim 1, characterized in that: The airtight head (11) comprises: A telescopic gas rod (1101), wherein a spring (1102) is provided on the outside of the telescopic gas rod (1101), and the spring (1102) is slidably connected to the telescopic gas rod (1101); A nozzle (1103), wherein the nozzle (1103) is fixedly connected to the telescopic gas rod (1101).

6. The engine air tightness detection device according to claim 1, characterized in that: The threaded expansion and contraction device (15) comprises: A rotating connecting shaft (1501), wherein a threaded rod (1502) is provided at the upper end of the rotating connecting shaft (1501); A limiting ring (1503), wherein the upper and lower end surfaces of the limiting ring (1503) are fixedly connected to the rotating connecting shaft (1501) and the threaded rod (1502); A second limiting ring (1504), wherein the second limiting ring (1504) is fixedly connected to the threaded rod (1502); A third limiting ring (1505), wherein the third limiting ring (1505) is fixedly connected to the upper end of the threaded rod (1502); Empty tube one (1506), the rotating connecting shaft (1501) penetrates the empty tube one (1506); Empty pipe 2 (1507), the empty pipe 2 (1507) is threadedly connected to the threaded rod (1502); Empty pipe three (1508), the empty pipe three (1508) is threadedly connected to the threaded rod (1502); The empty tube one (1506) is slidably connected to the empty tube two (1507), and the empty tube two (1507) is slidably connected to the empty tube three (1508).

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