CN214471615U - Air tightness detection device of engine cylinder head cover - Google Patents
Air tightness detection device of engine cylinder head cover Download PDFInfo
- Publication number
- CN214471615U CN214471615U CN202120180412.3U CN202120180412U CN214471615U CN 214471615 U CN214471615 U CN 214471615U CN 202120180412 U CN202120180412 U CN 202120180412U CN 214471615 U CN214471615 U CN 214471615U
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- Prior art keywords
- engine cylinder
- cylinder head
- head cover
- fixedly connected
- plate
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- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000007547 defect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an air tightness detection device of engine cylinder head cover, the camera includes a supporting plate, two spacing posts of last fixed surface of backup pad are connected with, be provided with engine cylinder head cover between two spacing posts, engine cylinder head cover's bottom is provided with two through-holes, two the inside of through-hole is provided with front side gag lever post and rear side gag lever post respectively, front side gag lever post all is provided with airflow channel with the inside of rear side gag lever post, airflow channel's export fixedly connected with gasbag, the upside of backup pad is provided with the fixed plate, the sealed lid of lower fixed surface fixedly connected with of fixed plate. The utility model discloses in, seal up engine cylinder head cover through gasbag and sealing washer, can prevent when carrying out the leakproofness detection to engine cylinder head cover, gas in the housing is followed upside or downthehole the running out.
Description
Technical Field
The utility model relates to an air tightness detects technical field, especially relates to an air tightness detection device of engine cylinder head cover.
Background
The cylinder cover is a cover covering the engine cylinder body, can prevent external impurities from entering the engine and simultaneously plays a role in sealing. An oil baffle or filter in the cylinder head cover is used for preventing the oil from flowing to an air inlet channel as much as possible. Another function of the cylinder head cover is to serve as an oil filler port. This construction can be as simple as a hole into which the oil fill port cap is screwed; more complex filler pipes are also possible. The cylinder head cover may also act as a sensor mount, including camshaft position and camshaft timing sensors. Of course, whether these sensors are included depends on the complexity of the engine.
In the existing automobile engine cylinder head cover development and manufacturing process, the cylinder head cover is often provided with air holes due to casting defects, so that the air tightness detection of the cylinder head cover becomes a crucial link, and the accuracy of the air tightness detection of the existing engine cylinder head cover is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an air tightness detection device of an engine cylinder head cover.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an air tightness detection device of engine cylinder head cover, includes the backup pad, its characterized in that: the upper surface of the supporting plate is fixedly connected with two limiting columns, an engine cylinder cover is arranged between the two limiting columns, two through holes are formed in the bottom of the engine cylinder cover, a front side limiting rod and a rear side limiting rod are respectively arranged in the two through holes, airflow channels are respectively arranged in the front side limiting rod and the rear side limiting rod, and an air bag is fixedly connected to an outlet of each airflow channel;
the supporting plate is characterized in that a bottom plate is arranged on the lower side of the supporting plate, four guide pillars are evenly arranged on the upper surface of the bottom plate and are all in sliding connection with the supporting plate, a fixing plate is arranged on the upper side of the supporting plate and is in sliding connection with the guide pillars, and a sealing cover is fixedly connected to the lower surface of the fixing plate.
As a further description of the above technical solution: the front side limiting rod and the rear side limiting rod are fixedly connected with the upper surface of the bottom plate, and the lower surface of the bottom plate is fixedly connected with four bottom columns.
As a further description of the above technical solution: the upper surface of the guide pillar is fixedly connected with a top plate, and the upper surface of the top plate is provided with a hydraulic cylinder.
As a further description of the above technical solution: the middle part of the upper surface of the fixed plate is fixedly connected with a push rod, and the push rod is fixedly connected with the output end of the hydraulic cylinder.
As a further description of the above technical solution: the upper surface of fixed plate fixedly connected with air pump, the air pump is provided with two outputs.
As a further description of the above technical solution: the input ends of the two air flow channels are fixedly connected with a right air pipe, and the right air pipe is fixedly connected with the right output end of the air pump.
As a further description of the above technical solution: the outer side wall of the sealing cover is fixedly connected with a rubber ring, and the cross section of the sealing cover is matched with an engine cylinder head cover.
As a further description of the above technical solution: the lower surface of the sealing cover is provided with an air pressure sensor, and return springs are fixedly connected between the front side limiting rod and the bottom plate and between the rear side limiting rod and the bottom plate.
As a further description of the above technical solution: and electromagnetic valves are arranged at the lower side output end of the air pump and the tail end of the right air pipe.
The utility model discloses following beneficial effect has:
1. compared with the prior art, the air tightness detection device of the engine cylinder head cover seals the engine cylinder head cover through the air bag and the sealing ring, and can prevent gas in the cover from escaping from the upside or the hole to influence the air tightness detection effect when the air tightness detection is carried out on the engine cylinder head cover.
2. Compared with the prior art, the air tightness detection device of the engine cylinder head cover is provided with the return spring, and the return spring can prevent the cylinder head cover from being damaged due to overlarge pressure on the cylinder head cover when the sealing cover seals the engine cylinder head cover.
3. Compared with the prior art, the air tightness detection device of the engine cylinder head cover is provided with the air pressure sensor, and the air tightness of the engine head cover is detected by judging the pressure condition in the engine head cover in the detection process through the air pressure sensor.
Drawings
Fig. 1 is a schematic view of an air tightness detecting device of an engine cylinder head cover according to the present invention;
fig. 2 is a cross-sectional view of an air tightness detecting device of an engine cylinder head cover according to the present invention;
fig. 3 is a side view of an air tightness detecting device of an engine cylinder head cover according to the present invention;
fig. 4 is an enlarged schematic view of a portion a in fig. 2.
Illustration of the drawings:
1. a bottom pillar; 2. a base plate; 3. a support plate; 4. a guide post; 5. a fixing plate; 6. an air pump; 7. a top plate; 8. a hydraulic cylinder; 9. a push rod; 10. an engine cylinder head cover; 11. a limiting column; 12. the right trachea; 13. a front side stopper rod; 14. a rear side limit lever; 15. an air bag; 16. an air flow channel; 17. a return spring; 18. an electromagnetic valve; 19. a rubber ring; 20. a sealing cover; 21. an air pressure sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the utility model provides a pair of airtightness detection device of engine cylinder cover, including backup pad 3, two spacing posts 11 of fixed surface are connected with of backup pad 3, be provided with engine cylinder cover 10 between two spacing posts 11, the bottom of engine cylinder cover 10 is provided with two through-holes, the inside of two through-holes is provided with front side limiting rod 13 and rear side limiting rod 14 respectively, front side limiting rod 13 all is provided with airflow channel 16 with rear side limiting rod 14's inside, airflow channel 16's export fixedly connected with gasbag 15, front side limiting rod 13 all is connected with bottom plate 2's upper surface fixed with rear side limiting rod 14, bottom plate 2's four heels 1 of fixed surface fixed connection, guide pillar 4's upper surface fixed connection has roof 7, the upper surface of roof 7 is provided with pneumatic cylinder 8.
A bottom plate 2 is arranged on the lower side of a support plate 3, four guide posts 4 are uniformly arranged on the upper surface of the bottom plate 2, the four guide posts 4 are all connected with the support plate 3 in a sliding manner, a fixing plate 5 is arranged on the upper side of the support plate 3, the fixing plate 5 is connected with the guide posts 4 in a sliding manner, a sealing cover 20 is fixedly connected to the lower surface of the fixing plate 5, a rubber ring 19 is fixedly connected to the outer side wall of the sealing cover 20, the cross section of the sealing cover 20 is matched with an engine cylinder cover 10, an air pressure sensor 21 is arranged on the lower surface of the sealing cover 20, a reset spring 17 is fixedly connected between a front side limiting rod 13 and a rear side limiting rod 14 and the bottom plate 2, a push rod 9 is fixedly connected to the middle part of the upper surface of the fixing plate 5, the push rod 9 is fixedly connected with the output end of a hydraulic cylinder 8, an air pump 6 is fixedly connected to the upper surface of the fixing plate 5, the air pump 6 is provided with two output ends, and the input ends of two air flow channels 16 are fixedly connected with a right air pipe 12, the lower side output end of the air pump 6 penetrates through the fixing plate 5 and the sealing cover 20 to extend downwards, the right side air pipe 12 is fixedly connected with the right side output end of the air pump 6, and the lower side output end of the air pump 6 and the tail end of the right side air pipe 12 are both provided with an electromagnetic valve 18.
The working principle is as follows: firstly, a groove of the engine cylinder head cover 10 is placed between two limiting columns 11, the movement of the engine cylinder head cover 10 is limited by limiting the groove by the limiting columns 11, then the air pump 6 is started, the air pump 6 seals the engine cylinder head cover 10 through the right air pipe 12, at this time, the air bag 15 is inflated by the air flow, the lower side through hole of the engine head cover 10 is sealed, then, the hydraulic cylinder 8 is started, the fixed plate 5 is pushed downwards by the push rod 9 until the sealing cover 20 seals the engine cylinder cover 10, the air pressure sensor 21 and the electromagnetic valve 18 at the lower air pipe of the air pump 6 are opened, when the internal pressure of the engine cylinder head cover 10 reaches a set value, the electromagnetic valve 18 at the lower air pipe of the air pump 6 is closed, after waiting for a certain time, the sealing performance of the engine head cover 10 is judged by comparing the pressure of the air pressure sensor 21 with the set pressure.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (9)
1. An airtightness detection device for an engine cylinder head cover, comprising a support plate (3), characterized in that: the upper surface of the supporting plate (3) is fixedly connected with two limiting columns (11), an engine cylinder cover (10) is arranged between the two limiting columns (11), the bottom of the engine cylinder cover (10) is provided with two through holes, a front side limiting rod (13) and a rear side limiting rod (14) are respectively arranged inside the two through holes, airflow channels (16) are respectively arranged inside the front side limiting rod (13) and the rear side limiting rod (14), and air bags (15) are fixedly connected with outlets of the airflow channels (16);
the supporting plate is characterized in that a bottom plate (2) is arranged on the lower side of the supporting plate (3), four guide pillars (4) are uniformly arranged on the upper surface of the bottom plate (2), the four guide pillars (4) are all in sliding connection with the supporting plate (3), a fixing plate (5) is arranged on the upper side of the supporting plate (3), the fixing plate (5) is in sliding connection with the guide pillars (4), and a sealing cover (20) is fixedly connected to the lower surface of the fixing plate (5).
2. The airtightness detection apparatus for an engine cylinder head cover according to claim 1, wherein: the front side limiting rod (13) and the rear side limiting rod (14) are fixedly connected with the upper surface of the bottom plate (2), and the lower surface of the bottom plate (2) is fixedly connected with four bottom columns (1).
3. The airtightness detection apparatus for an engine cylinder head cover according to claim 1, wherein: the upper surface of the guide post (4) is fixedly connected with a top plate (7), and the upper surface of the top plate (7) is provided with a hydraulic cylinder (8).
4. The airtightness detection apparatus for an engine cylinder head cover according to claim 1, wherein: the upper surface middle part fixedly connected with push rod (9) of fixed plate (5), push rod (9) and the output fixed connection of pneumatic cylinder (8).
5. The airtightness detection apparatus for an engine cylinder head cover according to claim 1, wherein: the upper surface of fixed plate (5) is fixedly connected with air pump (6), air pump (6) are provided with two outputs.
6. The airtightness detection apparatus for an engine cylinder head cover according to claim 1, wherein: the input ends of the two air flow channels (16) are fixedly connected with a right air pipe (12), and the right air pipe (12) is fixedly connected with the right output end of the air pump (6).
7. The airtightness detection apparatus for an engine cylinder head cover according to claim 1, wherein: the outer side wall of the sealing cover (20) is fixedly connected with a rubber ring (19), and the cross section of the sealing cover (20) is matched with the engine cylinder head cover (10).
8. The airtightness detection apparatus for an engine cylinder head cover according to claim 1, wherein: the lower surface of the sealing cover (20) is provided with an air pressure sensor (21), and a return spring (17) is fixedly connected between the front side limiting rod (13), the rear side limiting rod (14) and the bottom plate (2).
9. The airtightness detection apparatus for the engine cylinder head cover according to claim 5, wherein: and electromagnetic valves (18) are arranged at the output end of the lower side of the air pump (6) and the tail end of the right air pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120180412.3U CN214471615U (en) | 2021-01-22 | 2021-01-22 | Air tightness detection device of engine cylinder head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120180412.3U CN214471615U (en) | 2021-01-22 | 2021-01-22 | Air tightness detection device of engine cylinder head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214471615U true CN214471615U (en) | 2021-10-22 |
Family
ID=78112919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120180412.3U Expired - Fee Related CN214471615U (en) | 2021-01-22 | 2021-01-22 | Air tightness detection device of engine cylinder head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214471615U (en) |
-
2021
- 2021-01-22 CN CN202120180412.3U patent/CN214471615U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |