Automobile valve cover leakage detection device

Abstract

The present application relates to the technical field of automobile parts detection, and provides an automobile valve cover leakage detection device, which includes: a vibration part, which is used to vibrate the valve cover when detecting the valve cover, and obtain the pressure of the valve cover when being detected; a detection part, which is used to detect the valve cover, and the detection part includes multiple detection frames and multiple detection devices, and the detection devices are used to contact the valve cover so that the valve cover contacts the vibration part, and seal the spark plug hole on the valve cover, and when sealing the spark plug hole, increase the pressure in the closed pressurized space formed between the valve cover and the vibration part. The automobile valve cover leakage detection device provided by the present application can improve the technical problem existing in the related art that when detecting the edge sealing performance of different types of valve covers, the spark plug holes at different positions on different types of valve covers cannot be completely sealed, thereby affecting the accuracy of the detection result.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts detection, and in particular to an automobile valve cover leakage detection device. Background Art

[0002] The automobile valve cover leakage detection device is a device specially used to detect the sealing performance of the automobile engine valve cover.

[0003] When the automobile valve cover leakage detection device in the related technology detects the sealing performance of the edges of different types of valve covers, the spark plug holes (holes on the valve cover for the spark plug to pass through the valve cover and enter the engine cylinder) on different types of valve covers may not be completely sealed by the automobile valve cover leakage detection device, thereby affecting the accuracy of the detection results. Summary of the invention

[0004] An embodiment of the present application provides an automobile valve cover leakage detection device, which can improve the technical problem existing in the related art that when detecting the edge sealing performance of different types of valve covers, the spark plug holes at different positions on different types of valve covers cannot be completely sealed, thereby affecting the accuracy of the detection results.

[0005] The embodiment of the present application provides a vehicle valve cover leakage detection device, comprising:

[0006] a vibrating unit, configured to vibrate the valve cover when the valve cover is detected, and obtain a pressure of the valve cover when the valve cover is detected; and

[0007] A detection unit is used to detect the valve cover, the detection unit includes a plurality of detection frames and a plurality of detection devices, the detection frame is arranged on the vibration part, the detection device is movably arranged on the detection frame, the detection device is used to abut against the valve cover so that the valve cover abuts against the vibration part, and to block the spark plug hole on the valve cover when the valve cover abuts against the vibration part, and to increase the pressure in a closed pressurized space formed between the valve cover and the vibration part when the spark plug hole is blocked, the closed pressurized space being the space inside the valve cover when the valve cover abuts against the vibration part.

[0008] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0009] The automobile valve cover leakage detection device provided in the embodiment of the present application first adjusts the position of the detection part so that the detection part is located above the spark plug hole of the valve cover, and then uses the detection part to press the valve cover against the vibration part, so that the edge of the valve cover presses against the vibration part and blocks the spark plug hole at the same time, so that a closed pressurized space is formed between the valve cover and the vibration part, thereby avoiding the problem of being unable to completely block the spark plug hole due to the different positions of the spark plug holes on different types of valve covers, and then pressurizes the closed pressurized space through the detection part. After the pressure in the closed pressurized space reaches a preset pressure, the valve cover is continuously vibrated by the vibration part, simulating the operation of the automobile engine while monitoring the pressure in the closed pressurized space in real time, so as to assist the user in determining whether the valve cover is leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1 A schematic diagram of the structure of a vehicle valve cover leakage detection device provided in an embodiment of the present application;

[0012] Figure 2 A schematic diagram of the structure of a detection device provided in an embodiment of the present application;

[0013] Figure 3 A schematic diagram of the structure of the blocking portion provided in an embodiment of the present application;

[0014] Figure 4 A schematic structural diagram of a first sealing portion provided in an embodiment of the present application;

[0015] Figure 5 for Figure 4 A schematic structural diagram of another form of the first sealing portion;

[0016] Figure 6 for Figure 5 A schematic cross-sectional view of the first sealing portion;

[0017] Figure 7 This is a schematic structural diagram of the first sealing portion provided in an embodiment of the present application.

[0018] Among them, the reference numerals in the figure are:

[0019] 100. Automobile valve cover leakage detection device; 10. Vibration part; 11. Vibration disk; 12. Vibration plate; 13. Barometer; 14. Vibration drive member; 20. Detection part; 21. Detection frame; 22. Detection device; 221. Rotation part; 2211. First rotation member; 2212. Telescopic drive member; 2213. Second rotation member; 222. Detection drive member; 223. Blocking member; 224. Blocking part; 2241. Blocking drive member; 22411. Drive housing; 22412. Rotating driving member; 22413, driving gear; 22414, driving rod; 2242, blocking mechanism; 22421, first sealing part; 224211, sealing shell; 224212, sealing frame; 224213, sealing assembly; 2242131, sealing driving member; 2242132, sealing plate; 2242133, sealing mechanism; 2242133a, sealing rotating member; 2242133b, sealing block; 22422, second sealing part; 225, boosting member. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and 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 therefore should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0026] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] The automobile valve cover leakage detection device is a device specially used to detect the sealing performance of the automobile engine valve cover.

[0028] When the automobile valve cover leakage detection device in the related technology detects the sealing performance of the edges of different types of valve covers, the spark plug holes (holes on the valve cover for the spark plug to pass through the valve cover and enter the engine cylinder) on different types of valve covers may not be completely sealed by the automobile valve cover leakage detection device, thereby affecting the accuracy of the detection results.

[0029] Based on this, in order to improve the technical problem in the related art that when detecting the sealing performance of the edges of different types of valve covers, the spark plug holes at different positions on different types of valve covers cannot be completely sealed, thereby affecting the accuracy of the detection results, the embodiments of the present application provide the following solution.

[0030] See also Figure 1The embodiment of the present application provides a vehicle valve cover leakage detection device 100, the vehicle valve cover leakage detection device 100 comprises a vibration part 10 and a detection part 20, wherein:

[0031] The vibration unit 10 is used to vibrate the valve cover when the valve cover is inspected, and to obtain the pressure of the valve cover when the valve cover is inspected.

[0032] The detection part 20 is used to detect the valve cover. The detection part 20 includes multiple detection frames 21 and multiple detection devices 22. The detection frames 21 are arranged on the vibration part 10. The detection devices 22 are movably arranged on the detection frames 21. The detection devices 22 are used to contact the valve cover so that the valve cover and the vibration part 10 are in conflict, and the spark plug holes on the valve cover are blocked when the valve cover is in conflict with the vibration part 10, and the closed pressurized space formed between the valve cover and the vibration part 10 is pressurized when the spark plug holes are blocked. The closed pressurized space is the space formed between the valve cover and the vibration part 10 when the valve cover and the vibration part 10 are in conflict.

[0033] It can be understood that the vibration part 10 is a device that can continuously generate vibrations. For example, the vibration part 10 can be an electro-hydraulic vibration table, an unbalanced weight vibration table, etc., but is not limited thereto.

[0034] The detection unit 20 is a device capable of detecting whether the valve cover is leaking. For example, the detection unit 20 can be a valve cover leak detection device for an automobile engine, an engine valve seal leak detector, etc., but is not limited thereto. The detection frame 21 is a rod-shaped structure. For example, the detection frame 21 can be an aluminum rod, a plastic rod, etc., but is not limited thereto. The detection device 22 is a device capable of blocking the spark plug hole on the valve cover when the valve cover is in contact with the vibration unit 10, and pressurizing the closed pressurized space formed between the valve cover and the vibration unit 10 when blocking the spark plug hole. For example, the detection device 22 can include a driving cylinder and a plug, etc., but is not limited thereto. Among them, the driving cylinder is used to drive the plug to approach and contact the spark plug hole on the valve cover. For example, the driving cylinder can be a guide rod cylinder, a double-axis cylinder, etc., but is not limited thereto. The plug is used to block the spark plug hole. The diameter of the plug can be larger than the aperture of the spark plug hole. For example, the plug can be a rubber plug, a plastic plug, etc., but is not limited thereto.

[0035] From the above, it can be seen that the automobile valve cover leakage detection device 100 provided in the embodiment of the present application first adjusts the position of the detection part 20 so that the detection part 20 is located above the spark plug hole of the valve cover, and then uses the detection part 20 to press the valve cover against the vibration part 10, so that the edge of the valve cover presses against the vibration part 10 and blocks the spark plug hole at the same time, so that a sealed closed pressurized space is formed between the valve cover and the vibration part 10, thereby avoiding the problem of being unable to completely seal the spark plug hole due to the different positions of the spark plug holes on different types of valve covers, and then pressurizes the closed pressurized space through the detection part 20 to make the pressure in the closed pressurized space reach a preset pressure, and then continuously vibrates the valve cover through the vibration part 10 to simulate the operation of the automobile engine while monitoring the pressure in the closed pressurized space in real time, so as to assist the user in determining whether the valve cover is leaking.

[0036] In some embodiments, see Figure 1 The vibration part 10 includes a vibration disk 11 , a vibration plate 12 , a barometer 13 and a plurality of vibration driving members 14 .

[0037] The vibration plate 11 is provided with a vibration groove.

[0038] The vibration plate 12 is disposed on the vibration plate 11 in a translationally movable manner and is in frictional contact with the vibration plate 11 .

[0039] The barometer 13 is disposed on the vibration plate 12 , and is used to obtain the pressure of the valve cover when being tested.

[0040] A plurality of vibration driving members 14 are arranged on the vibration disk 11 and are located in the vibration groove. One end of the vibration driving member 14 is rotatably connected to the inner wall of the vibration groove, and the other end of the vibration driving member 14 is rotatably connected to the vibration plate 12. The vibration driving member 14 is used to drive the vibration disk 11 to translate.

[0041] Among them, the detection frame 21 is arranged on the vibration plate 12, and the detection device 22 is used to contact the valve chamber cover so that the valve chamber cover and the vibration plate 12 are in conflict. When the valve chamber cover and the vibration plate 12 are in conflict, a closed pressurized space is formed between the valve chamber cover and the vibration plate 12. When the valve chamber cover and the vibration plate 12 are in conflict, the barometer 13 is located in the closed pressurized space.

[0042] It can be understood that the vibration disk 11 is a structure that plays a supporting role. The vibration disk 11 can be fixedly connected to the ground. For example, the material of the vibration disk 11 can be aluminum, plastic, etc., but not limited to this. The vibration plate 12 is a plate-like structure. For example, the vibration plate 12 can be a rubber plate, an aluminum plate, etc., but not limited to this. The barometer 13 is a device that can monitor the air pressure value in a closed pressurized space in real time. For example, the barometer 13 can be a small barometer sensor module, a portable digital barometer, etc., but not limited to this. The vibration drive 14 is a device that can drive the vibration plate 12 to vibrate. For example, the vibration drive 14 can be a hydraulic drive cylinder, a pneumatic pump, etc., but not limited to this.

[0043] In this arrangement, the vibration plate 12 is supported by the vibration disk 11, and the vibration plate 12 is driven by the vibration driving member 14 to reciprocate close to or away from the vibration driving member 14 to achieve the vibration of the vibration plate 12, thereby simulating the vibration environment of the automobile engine when it is running when testing the valve cover, thereby enhancing the reliability of the test results.

[0044] In some embodiments, see Figure 2 The detection device 22 includes a rotating part 221, a detection driving part 222, a blocking member 223, a blocking part 224 and a pressurizing member 225.

[0045] The rotating portion 221 is rotatably disposed on the detection frame 21 .

[0046] The detection driving part 222 is disposed at one end of the rotating part 221 away from the detection frame 21 , and a detection channel is defined in a power output rod of the detection driving part 222 .

[0047] The blocking member 223 is disposed on the power output rod, and is used to abut against the valve cover and block the side of the spark plug hole away from the vibration part 10 .

[0048] The blocking portion 224 is movably disposed on the power output rod, and the blocking portion 224 has a driving accommodating space, a sealing accommodating space and a second sealing space, and the driving accommodating space, the sealing accommodating space and the second sealing space are respectively connected to the detection channel, and the sealing accommodating space is connected to the closed pressurized space, and the blocking portion 224 is used to block the side of the spark plug hole close to the vibration portion 10.

[0049] The booster 225 is arranged on the power output rod and is located above the sealing member 223. The booster 225 has a boosting space, which is connected to the detection channel. The booster 225 is used to pressurize the enclosed pressurized space through the detection channel and the sealed accommodating space and drive the sealing part 224 to seal the spark plug hole through the detection channel and the second sealed space.

[0050] Among them, the rotating part 221 is used to drive the detection driving part 222 to rotate with the detection frame 21 as the axis, and drive the detection driving part 222 to approach or move away from the detection frame 21; the detection driving part 222 is used to drive the sealing part 223 and the sealing part 224 to approach the valve chamber cover so that the sealing part 223 contacts the valve chamber cover and blocks the spark plug hole, and makes the sealing part 224 partially located in the closed pressurized space, and makes the spark plug hole located between the sealing part 223 and the sealing part 224, or drives the sealing part 223 and the sealing part 224 away from the valve chamber cover so that the sealing part 223 is separated from the valve chamber cover, and makes the sealing part 224 located outside the closed pressurized space.

[0051] It can be understood that the rotating part 221 is a device that can drive the detection driving part 222 to rotate and make the detection driving part 222 approach or move away from the detection frame 21. For example, the rotating part 221 can be a straight rod type rotating telescopic arm, a folding rotating telescopic arm, etc., but is not limited thereto.

[0052] The detection drive unit 222 is a drive device that can drive the blocking member 223 and the blocking portion 224 to approach the valve cover. For example, the detection drive unit 222 can be a guide rod cylinder, a double-axis cylinder, etc., but is not limited thereto.

[0053] The sealing member 223 is a cylindrical component that can seal the side of the spark plug hole away from the vibration part 10. The diameter of the sealing member 223 can be larger than the aperture of the spark plug hole. For example, the sealing member 223 can be a rubber plug, an elastic sealing plug, etc., but is not limited thereto.

[0054] The blocking part 224 is a device capable of blocking the side of the spark plug hole close to the vibration part 10. For example, the blocking part 224 may include a driving cylinder and an expansion airbag, but is not limited thereto. The expansion airbag is used to expand in a closed pressurized space so that the size of the expansion airbag is larger than the size of the spark plug hole. The driving cylinder is used to drive the expansion airbag to approach and abut against the side of the spark plug hole close to the vibration part 10 to block the side of the spark plug hole close to the vibration part 10.

[0055] The booster 225 is a device that can increase the pressure in a closed pressurized space. For example, the booster 225 can be an air booster pump, an air compressor, etc., but is not limited thereto.

[0056] In this way, the detection drive part 222 is moved to the position directly above the spark plug hole by the rotating part 221, and then the detection drive part 222 drives the sealing part 223 to approach and abut the spark plug hole on the valve cover, so that the sealing part 223 blocks the side of the spark plug hole away from the vibration part 10, so that the valve cover abuts against the vibration plate 12 to form a closed pressurized space, and the sealing part 224 is located in the closed pressurized space, and then the pressurization part 225 is used to increase the pressure in the closed pressurized space, and the sealing part 224 is driven to seal the side of the spark plug hole close to the vibration part 10, so as to further avoid pressure leakage from the spark plug hole and affect the accuracy of the detection result.

[0057] In some embodiments, see Figure 2 The rotating part 221 includes a first rotating member 2211 , a telescopic driving member 2212 and a second rotating member 2213 .

[0058] The first rotating member 2211 is rotatably disposed on the detection frame 21 , and a rotating accommodation space is defined in the first rotating member 2211 .

[0059] The telescopic driving member 2212 is disposed on the first rotating member 2211 and is located at a side of the rotating accommodation space close to the detection frame 21 .

[0060] The second rotating member 2213 is movably disposed on the first rotating member 2211 and is partially located in the rotating accommodation space, and one end of the second rotating member 2213 is connected to the power output end of the telescopic driving member 2212 .

[0061] The detection driving part 222 is connected to the other end of the second rotating member 2213 , and the telescopic driving member 2212 is used to drive the second rotating member 2213 to move closer to or away from the first rotating member 2211 along the rotating accommodation space.

[0062] It can be understood that the first rotating member 2211 is a rod-shaped structure. For example, the first rotating member 2211 can be a rotating telescopic arm, a hydraulic telescopic arm, etc., but not limited thereto. The telescopic driving member 2212 is a driving device that can drive the second rotating member 2213 to move closer to or away from the first rotating member 2211 along the rotating accommodation space. For example, the telescopic driving member 2212 can be a guide rod cylinder, a double-axis cylinder, etc., but not limited thereto. The second rotating member 2213 is a rod-shaped structure. For example, the second rotating member 2213 can be an aluminum rod, a plastic rod, etc., but not limited thereto.

[0063] In this way, the first rotating member 2211 drives the detection drive part 222 to rotate, so that in the projection along the direction of gravity, the driving direction of the telescopic drive member 2212 can pass through the spark plug hole, and then the telescopic drive member 2212 drives the second rotating member 2213 to approach or move away from the first rotating member 2211 so that the detection drive part 222 is located directly above the spark plug hole, thereby avoiding the problem of difficulty in sealing the spark plug hole due to the different positions of the spark plug holes on different valve chamber covers.

[0064] In some embodiments, see Figure 3 A plurality of movable grooves are provided on the outer wall of one end of the power output rod close to the valve cover along the length direction of the power output rod, and the blocking portion 224 includes a blocking driving portion 2241 and a blocking mechanism 2242 .

[0065] The blocking driving part 2241 is disposed on the power output rod and is located above the blocking member 223 . The blocking driving part 2241 has a driving accommodating space.

[0066] The sealing mechanism 2242 is movably arranged on one end of the power output rod close to the vibration part 10, and is partially located in the movable groove. The sealing mechanism 2242 has a sealed accommodating space and a second sealed space. The sealing mechanism 2242 is connected to the sealing driving part 2241, and the sealing mechanism 2242 is used to seal the spark plug hole.

[0067] Among them, the sealing drive part 2241 is used to drive the sealing mechanism 2242 along the moving groove to approach or move away from the valve cover, the booster 225 is used to drive the sealing mechanism 2242 to seal the spark plug hole close to the vibration part 10 through the detection channel and the second sealed space, and the detection drive part 222 is used to drive the sealing part 223 and the sealing mechanism 2242 close to the valve cover so that the sealing part 223 contacts the valve cover and seals the spark plug hole, and the sealed mechanism 2242 is located in the closed pressurized space, and the spark plug hole is located between the sealing part 223 and the sealing mechanism 2242, or drive the sealing part 223 and the sealing mechanism 2242 away from the valve cover so that the sealing part 223 is separated from the valve cover, and the sealing mechanism 2242 is located outside the closed pressurized space.

[0068] It can be understood that the blocking drive part 2241 is a driving mechanism that can drive the blocking mechanism 2242 to move closer to or away from the valve cover. For example, the blocking drive part 2241 can be a driving cylinder, a driving motor, etc., but is not limited thereto.

[0069] The blocking mechanism 2242 is a device capable of blocking the side of the spark plug hole close to the vibration part 10. For example, the blocking mechanism 2242 may include a driving cylinder and an expansion airbag, but is not limited thereto. The expansion airbag is used to expand in a closed pressurized space so that the size of the expansion airbag is larger than the size of the spark plug hole, and the driving cylinder is used to drive the expansion airbag to approach and abut against the side of the spark plug hole close to the vibration part 10 to block the side of the spark plug hole close to the vibration part 10.

[0070] In this arrangement, when the sealing mechanism 2242 is located in the closed pressurized space, the booster 225 drives the sealing mechanism 2242 to seal the side of the spark plug hole close to the vibration part 10, and then the sealing drive part 2241 drives the sealing mechanism 2242 away from the vibration part 10 to make the sealing mechanism 2242 conflict with the side of the spark plug hole close to the vibration part 10, thereby further sealing the spark plug hole.

[0071] In some embodiments, see Figure 3 The blocking driving part 2241 includes a driving shell 22411 , a rotating driving member 22412 , a driving gear 22413 and a driving rod 22414 .

[0072] The drive shell 22411 is arranged on the power output rod and is located above the blocking member 223 and partially located in the detection channel. The portion of the drive shell 22411 located in the detection channel is provided with a receiving groove parallel to the length direction of the power output rod, and the drive shell 22411 has a drive receiving space.

[0073] The rotary driving member 22412 is disposed on the driving shell 22411 , and the power output end of the rotary driving member 22412 is located in the driving accommodation space.

[0074] The driving gear 22413 is located in the driving accommodation space and is connected to the power output end of the rotating driving member 22412 .

[0075] The driving rod 22414 is movably disposed on the driving shell 22411 and is partially located in the accommodating groove and partially located in the detection channel. The moving direction of the driving rod 22414 is parallel to the length direction of the power output rod. A rack portion is provided on one side of the driving rod 22414, and the rack portion is meshed with the driving gear 22413.

[0076] Among them, the blocking mechanism 2242 is connected to the driving rod 22414, the driving gear 22413 is in contact with the driving rod 22414 so that the driving rod 22414 is in contact with the bottom of the accommodating groove, and the rotating driving member 22412 is used to drive the driving gear 22413 to rotate to drive the driving rod 22414 meshing with the driving gear 22413 to move closer to or away from the blocking member 223.

[0077] It can be understood that the drive shell 22411 is a shell, for example, the drive shell 22411 can be an aluminum shell, a plastic shell, etc., but not limited thereto. The rotating drive member 22412 is a driving device, for example, the rotating drive member 22412 can be a servo motor, a stepper motor, etc., but not limited thereto. The driving gear 22413 is a gear, for example, the driving gear 22413 can be a spur gear, a helical gear, etc., but not limited thereto. The driving rod 22414 is a rod-shaped structure, for example, the driving rod 22414 can be a spur rack, a helical rack, etc., but not limited thereto.

[0078] In this configuration, the driving gear 22413 is driven to rotate by the rotating driving member 22412 to drive the driving rod 22414 meshed with the driving gear 22413 to move closer to or away from the blocking member 223 , thereby driving the blocking mechanism 2242 connected to the driving rod 22414 to move closer to or away from the blocking member 223 .

[0079] In some embodiments, see Figure 2 and Figure 7 The sealing mechanism 2242 includes a first sealing portion 22421 and a second sealing portion 22422 .

[0080] The first sealing portion 22421 is movably disposed on one end of the power output rod close to the valve cover and connected to the driving rod 22414, and is partially located in the movable groove. The first sealing portion 22421 has a sealed accommodating space.

[0081] The second sealing portion 22422 is deformably disposed on the power output rod and is located between the first sealing portion 22421 and the blocking member 223 . The second sealing portion 22422 has a second sealed space therein, and the second sealed space is communicated with the detection channel.

[0082] Among them, the booster 225 is used to increase pressure into the second sealed space through the detection channel to drive the second sealing part 22422 to expand; the rotating driving part 22412 is used to drive the driving gear 22413 to rotate to drive the first sealing part 22421 connected to the driving rod 22414 meshing with the driving gear 22413 to approach the blocking part 223 along the moving groove, thereby driving the expanded second sealing part 22422 to approach the blocking part 223 and abut against the side of the spark plug hole close to the vibration part 10 to block the side of the spark plug hole close to the vibration part 10.

[0083] It can be understood that the first sealing part 22421 is a device that can drive the second sealing part 22422 to approach the blocking member 223. For example, the first sealing part 22421 can be a guide rod cylinder, a slide cylinder, etc., but not limited thereto. The second sealing part 22422 is an airbag that can expand or contract. The diameter of the second sealing part 22422 when not expanded can be smaller than the aperture of the spark plug hole. For example, the second sealing part 22422 can be a round rubber inflatable airbag, an octagonal rubber inflatable airbag, etc., but not limited thereto.

[0084] In this arrangement, when the first sealing portion 22421 and the second sealing portion 22422 are located in a closed pressurized space, the booster 225 boosts the pressure in the closed pressurized space while driving the second sealing portion 22422 to expand, so that the size of the second sealing portion 22422 is larger than the size of the spark plug hole, and then the first sealing portion 22421 is driven to approach the blocking portion 223 by the rotating driving member 22412, thereby driving the expanded second sealing portion 22422 to approach the blocking portion 223 and abut against the side of the spark plug hole close to the vibration portion 10, so as to block the side of the spark plug hole close to the vibration portion 10.

[0085] In some embodiments, see Figures 3 to 7 A plurality of guide grooves are provided on the outer wall of one end of the power output rod close to the valve cover along the length direction of the power output rod, and the guide grooves are located between two adjacent movable grooves. The first sealing part 22421 includes a sealing shell 224211, a sealing frame 224212 and a sealing assembly 224213.

[0086] The sealing shell 224211 is movably arranged on one end of the power output rod close to the valve chamber cover and connected to the driving rod 22414. The sealing shell 224211 has a sealed accommodating space.

[0087] The sealing frame 224212 is arranged on one side of the sealing shell 224211 close to the blocking member 223, is connected to the driving rod 22414, and is partially located in the moving groove.

[0088] The sealing assembly 224213 is located in the sealing accommodating space and is movably disposed on the sealing shell 224211 and corresponds to the position of the guide groove.

[0089] Among them, the rotating driving member 22412 is used to drive the driving gear 22413 to rotate so as to drive the sealing frame 224212 connected to the driving rod 22414 meshing with the driving gear 22413 to approach or move away from the blocking member 223 along the moving groove, thereby making the sealing shell 224211 and the sealing assembly 224213 approach or move away from the blocking member 223, and the sealing assembly 224213 can be partially located in the guide groove when approaching or moving away from the blocking member 223.

[0090] It can be understood that the sealing shell 224211 is a shell, and the size of the sealing shell 224211 can be smaller than the size of the spark plug hole. For example, the sealing shell 224211 can be a plastic shell, an aluminum shell, etc., but not limited to this. The sealing frame 224212 is a cross-like support frame. For example, the sealing frame 224212 can be a plastic frame, an aluminum frame, etc., but not limited to this.

[0091] The sealing component 224213 is a device that can switch freely between a contracted state (most of the sealing component 224213 is located in the sealed accommodation space) and an extended state (most of the sealing component 224213 is located outside the sealed accommodation space). For example, the sealing component 224213 may include a driving cylinder and a driven plate, but is not limited thereto. The driving cylinder is used to drive the driven plate to approach or move away from the sealed accommodation space.

[0092] In such a configuration, because the sealing component 224213 is to be located in a closed pressurized space, the size of the sealing component 224213 is smaller than the size of the spark plug hole, and the size of the second sealing portion 22422 after expansion is larger than the size of the spark plug hole. If the sealing component 224213, which is smaller than the spark plug hole, is directly used to drive the expanded second sealing portion 22422 to contact one side of the spark plug hole, only the central part of the second sealing portion 22422 can be driven to contact the spark plug hole, resulting in a poor sealing effect. Therefore, when the second sealing portion 22422 is After the part 22422 expands, the sealing component 224213 switches from the contracted state to the extended state, and then the sealing component 224213 which is arranged on the sealing shell 224211 and is in the extended state is driven by the rotating driving member 22412 to approach the blocking member 223, so that the expanded second sealing part 22422 located between the spark plug hole and the sealing component 224213 is pressed against the side of the spark plug hole close to the vibration part 10 as a whole, so as to block the side of the spark plug hole close to the vibration part 10, thereby achieving a better blocking effect.

[0093] In some embodiments, see Figures 3 to 7 The sealing assembly 224213 includes a sealing drive member 2242131, a sealing plate 2242132 and multiple sealing mechanisms 2242133.

[0094] The sealing driving member 2242131 is located in the sealed accommodation space and is arranged at one end of the sealing shell 224211 away from the blocking member 223 .

[0095] The sealing plate 2242132 is located in the sealed accommodation space and is connected to the power output end of the sealing driving member 2242131 .

[0096] A plurality of sealing mechanisms 2242133 are located in the sealed accommodation space, and are rotatably disposed on the sealing plate 2242132 , and are movably disposed on one end of the sealing shell 224211 close to the blocking member 223 .

[0097] Among them, the sealing driving member 2242131 is used to drive the sealing plate 2242132 to approach or move away from the blocking member 223, and drive the sealing mechanism 2242133 to approach or move away from the blocking member 223. The sealing mechanism 2242133 corresponds to the position of the guide groove. The sealing mechanism 2242133 can be partially located in the guide groove when approaching or moving away from the blocking member 223.

[0098] It can be understood that the sealing drive member 2242131 is a driving mechanism, for example, the sealing drive member 2242131 can be a guide cylinder, a micro cylinder, etc., but not limited thereto. The sealing plate 2242132 is a plate-like structure, for example, the sealing plate 2242132 can be an aluminum plate, a plastic plate, etc., but not limited thereto.

[0099] The sealing mechanism 2242133 is a movable floor-like structure, for example, the sealing mechanism 2242133 may include a movable member and a movable plate, but is not limited thereto. The movable member is rotatably disposed on the sealing shell 224211 and corresponds to the position of the guide groove, one end of the movable plate is rotatably disposed on the sealing plate 2242132, and the other end of the movable plate is movably disposed on the movable member.

[0100] In this way, when the sealing mechanism 2242133 is mostly located in the sealed accommodating space, the sealing assembly 224213 is in a contracted form, and when the sealing mechanism 2242133 is mostly located outside the sealed accommodating space, the sealing assembly 224213 is in an extended form; when the sealing mechanism 2242133 is transformed from the contracted form to the extended form, the sealing driving member 2242131 drives the sealing plate 2242132 to approach the blocking member 223, thereby driving the sealing mechanism 2242133 away from the sealed accommodating space; when the sealing mechanism 2242133 is transformed from the extended form to the contracted form, the sealing driving member 2242131 drives the sealing plate 2242132 to move away from the blocking member 223, thereby driving the sealing mechanism 2242133 to approach the sealed accommodating space.

[0101] In some embodiments, see Figure 4 and Figure 5 The sealing mechanism 2242133 includes a sealing rotating member 2242133a and a sealing block 2242133b.

[0102] The sealing rotating member 2242133a is rotatably disposed on one end of the sealing shell 224211 close to the blocking member 223, and the sealing rotating member 2242133a has a rotating channel.

[0103] The sealing block 2242133b is partially located in the sealing accommodating space, and is rotatably disposed on the sealing plate 2242132, and is movably disposed in the rotating channel.

[0104] The sealing block 2242133b corresponds to the position of the guide groove, and the sealing driving member 2242131 is used to drive the sealing plate 2242132 to approach or move away from the blocking member 223, and drive the sealing block 2242133b to approach or move away from the blocking member 223, and the sealing block 2242133b can be partially located in the guide groove when approaching or moving away from the blocking member 223; when the sealing driving member 2242131 drives the sealing plate 2242132 to make the sealing block 2242133b approach the blocking member 223, the sealing block 2242133b approaches the sealing plate When one end of 2242132 approaches the sealing piece 223, the end of the sealing block 2242133b away from the sealing plate 2242132 also moves away from the driving rod 22414; when the sealing driving piece 2242131 drives the sealing plate 2242132 to make the sealing block 2242133b move away from the sealing piece 223, when the end of the sealing block 2242133b close to the sealing plate 2242132 moves away from the sealing piece 223, the end of the sealing block 2242133b away from the sealing plate 2242132 also moves towards the driving rod 22414.

[0105] It can be understood that the sealing rotating member 2242133a is a device capable of limiting the moving direction of the sealing block 2242133b. For example, the sealing rotating member 2242133a can be a sliding sleeve, a rotating sleeve, etc., but is not limited thereto. The sealing block 2242133b is a plate-like structure. The width of the sealing block 2242133b can be smaller than the width of the guide groove. For example, the sealing block 2242133b can be a plastic plate, an aluminum plate, etc., but is not limited thereto.

[0106] In this way, when the sealing block 2242133b is mostly located in the sealing accommodation space, the sealing assembly 224213 is in a contracted state, and when the sealing block 2242133b is mostly located outside the sealing accommodation space, the sealing assembly 224213 is in an extended state; when the sealing driving member 2242131 drives the sealing plate 2242132 to make the sealing block 2242133b close to the blocking member 223, the end of the sealing block 2242133b close to the sealing plate 2242132 is close to the blocking member 223, while the sealing block 2242133b is away from the sealing plate 2242132. One end of 242132 is away from the driving rod 22414 at the same time, so that the sealing block 2242133b is away from the sealed accommodating space; when the sealing driving member 2242131 drives the sealing plate 2242132 to make the sealing block 2242133b away from the blocking member 223, the end of the sealing block 2242133b close to the sealing plate 2242132 is away from the blocking member 223, and the end of the sealing block 2242133b away from the sealing plate 2242132 is close to the driving rod 22414 at the same time, so that the sealing block 2242133b is close to the sealed accommodating space.

[0107] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automobile valve cover leakage detection device, characterized in that: include: a vibration unit, used to vibrate the valve cover when detecting the valve cover, and obtain the pressure of the valve cover when being detected; as well as a detection unit for detecting the valve cover, the detection unit comprising a plurality of detection racks and a plurality of detection devices, the detection racks being arranged on the vibration unit, the detection devices being movably arranged on the detection racks, the detection devices being used to abut against the valve cover so that the valve cover abuts against the vibration unit, and to block a spark plug hole on the valve cover when the valve cover abuts against the vibration unit, and to increase pressure in a closed pressurized space formed between the valve cover and the vibration unit when the spark plug hole is blocked, the closed pressurized space being a space formed between the valve cover and the vibration unit when the valve cover abuts against the vibration unit; The detection device comprises: A rotating part, rotatably disposed on the detection frame; A detection drive unit is arranged at one end of the rotating unit away from the detection frame, and a detection channel is provided in a power output rod of the detection drive unit; A blocking member, disposed on the power output rod, for contacting the valve cover and blocking a side of the spark plug hole away from the vibration part; a blocking portion movably disposed on the power output rod, the blocking portion comprising a driving accommodating space, a sealing accommodating space and a second sealing space, wherein the driving accommodating space, the sealing accommodating space and the second sealing space are respectively connected to the detection channel, and the sealing accommodating space is connected to the enclosed pressurizing space, and the blocking portion is used to block a side of the spark plug hole close to the vibration portion; and A booster, disposed on the power output rod and located above the blocking member, the booster having a boost space, the boost space being in communication with the detection channel, the booster being used to pressurize the enclosed pressurized space through the detection channel and the sealed accommodating space and drive the blocking portion to block the spark plug hole through the detection channel and the second sealed space; The rotating part is used to drive the detection driving part to rotate with the detection frame as the axis, and drive the detection driving part to approach or move away from the detection frame; the detection driving part is used to drive the blocking member and the blocking part to approach the valve chamber cover so that the blocking member contacts the valve chamber cover and blocks the spark plug hole, and the blocking part is partially located in the closed pressurized space, and the spark plug hole is located between the blocking member and the blocking part, or drive the blocking member and the blocking part to move away from the valve chamber cover so that the blocking member is separated from the valve chamber cover, and the blocking part is located outside the closed pressurized space; A plurality of movable grooves are provided on the outer side wall of one end of the power output rod close to the valve cover along the length direction of the power output rod, and the blocking portion includes: a blocking driving part, which is arranged on the power output rod and located above the blocking member, and has the driving accommodation space; and A blocking mechanism is movably disposed on one end of the power output rod close to the vibration part and is partially located in the movable groove, the blocking mechanism has the sealed accommodation space and the second sealed space, the blocking mechanism is connected to the blocking driving part, the blocking mechanism is used to block the spark plug hole, and the blocking mechanism can partially deform and expand so that the size of the blocking mechanism is larger than the size of the spark plug hole; wherein the blocking drive unit is used to drive the blocking mechanism along the movable groove to approach or move away from the valve cover, the pressurizing member is used to drive the blocking mechanism to block the side of the spark plug hole close to the vibration member through the detection channel and the second sealed space, the detection drive unit is used to drive the blocking member and the blocking mechanism close to the valve cover so that the blocking member contacts the valve cover and blocks the spark plug hole, and the blocking mechanism is located in the closed pressurized space, and the spark plug hole is located between the blocking member and the The plugging mechanism is driven between the plugging member and the plugging mechanism, or the plugging member and the plugging mechanism are driven away from the valve cover so that the plugging member is separated from the valve cover and the plugging mechanism is located outside the closed pressurized space; when the plugging mechanism is located in the closed pressurized space, the booster member drives the plugging mechanism to plug the side of the spark plug hole close to the vibration part, and then the plugging drive unit drives the plugging mechanism away from the vibration part so that the plugging mechanism conflicts with the side of the spark plug hole close to the vibration part, thereby further plugging the spark plug hole; The blocking driving unit comprises: A drive housing is arranged on the power output rod and is located above the blocking member and is partially located in the detection channel. The portion of the drive housing located in the detection channel is provided with a receiving groove parallel to the length direction of the power output rod, and the drive housing has a drive receiving space; A rotary driving member is disposed on the driving housing, and a power output end of the rotary driving member is located in the driving accommodation space; a driving gear, located in the driving accommodation space and connected to the power output end of the rotating driving member; and A driving rod is movably disposed on the driving housing and is partially located in the receiving groove and partially located in the detection channel. The moving direction of the driving rod is parallel to the length direction of the power output rod. A rack portion is provided on one side of the driving rod, and the rack portion is meshed with the driving gear. The blocking mechanism is connected to the driving rod, the driving gear contacts the driving rod so that the driving rod contacts the bottom of the receiving groove, and the rotating driving member is used to drive the driving gear to rotate so as to drive the driving rod meshing with the driving gear to move closer to or away from the blocking member; The blocking mechanism comprises: A first sealing portion is movably disposed on one end of the power output rod close to the valve cover and connected to the drive rod, and is partially located in the movable groove, the first sealing portion having the sealing accommodation space; and A second sealing portion is deformably disposed on the power output rod and is located between the first sealing portion and the blocking member, wherein the second sealing portion has a second sealed space therein, and the second sealed space is communicated with the detection channel; The pressurizing member is used to pressurize the second sealed space through the detection channel to drive the second sealing part to expand; the rotating driving member is used to drive the driving gear to rotate to drive the first sealing part connected to the driving rod meshing with the driving gear to approach the blocking member along the moving groove, thereby driving the expanded second sealing part to approach the blocking member and abut against the side of the spark plug hole close to the vibration part to block the side of the spark plug hole close to the vibration part; A plurality of guide grooves are provided on the outer side wall of one end of the power output rod close to the valve cover along the length direction of the power output rod, and the guide grooves are located between two adjacent movable grooves, and the first sealing portion includes: A sealing shell is movably arranged on one end of the power output rod close to the valve chamber cover and connected to the driving rod, and the sealing shell has a sealed accommodation space; A sealing frame, which is arranged on a side of the sealing shell close to the blocking member, is connected to the driving rod, and is partially located in the moving groove; a sealing assembly, located in the sealing accommodation space and movably disposed on the sealing shell, and corresponding to the position of the guide groove, wherein the sealing assembly can freely switch between a contracted state and an extended state, wherein the contracted state is a state in which most of the sealing assembly is located in the sealing accommodation space, and the extended state is a state in which most of the sealing assembly is located outside the sealing accommodation space; Wherein, the rotating driving member is used to drive the driving gear to rotate so as to drive the sealing frame connected to the driving rod meshing with the driving gear to approach or move away from the sealing member along the movable groove, so that the sealing shell and the sealing assembly are close to or away from the sealing member, and the sealing assembly can be partially located in the guide groove when approaching or moving away from the sealing member; when the second sealing part expands, the sealing assembly switches from the contracted form to the extended form, and then the sealing assembly arranged on the sealing shell and in the extended form is driven by the rotating driving member to approach the sealing member, so that the expanded second sealing part located between the spark plug hole and the sealing assembly is pressed against the side of the spark plug hole close to the vibration part as a whole to block the side of the spark plug hole close to the vibration part.

2. The vehicle valve cover leakage detection device according to claim 1, characterized in that: The vibration unit comprises: A vibration plate, wherein the vibration plate is provided with a vibration groove; a vibration plate, which is translationally arranged on the vibration disk and is in frictional contact with the vibration disk; a barometer, disposed on the vibration plate, the barometer being used to obtain the pressure of the valve cover when being tested; and A plurality of vibration driving members are arranged on the vibration plate and located in the vibration groove, one end of the vibration driving member is rotatably connected to the inner wall of the vibration groove, and the other end of the vibration driving member is rotatably connected to the vibration plate, and the vibration driving member is used to drive the vibration plate to translate; Wherein, the detection frame is arranged on the vibration plate, the detection device is used to contact the valve chamber cover so that the valve chamber cover contacts the vibration plate, and when the valve chamber cover contacts the vibration plate, the closed pressurized space is formed between the valve chamber cover and the vibration plate, and when the valve chamber cover contacts the vibration plate, the barometer is located in the closed pressurized space.

3. The vehicle valve cover leakage detection device according to claim 1, characterized in that: The rotating part comprises: A first rotating member is rotatably disposed on the detection frame, and a rotating accommodation space is provided in the first rotating member; a telescopic driving member, which is disposed on the first rotating member and is located on a side of the rotating accommodation space close to the detection frame; and A second rotating member is movably disposed on the first rotating member and is partially located in the rotating accommodation space, and one end of the second rotating member is connected to the power output end of the telescopic driving member; The detection drive part is connected to the other end of the second rotating member, and the telescopic drive member is used to drive the second rotating member to approach or move away from the first rotating member along the rotating accommodating space.

4. The vehicle valve cover leakage detection device according to claim 1, characterized in that: The sealing assembly comprises: A sealing driving member, located in the sealing accommodation space and arranged at an end of the sealing shell away from the blocking member; a sealing plate, located in the sealing accommodation space and connected to a power output end of the sealing driving member; and A plurality of sealing mechanisms are located in the sealing accommodation space and are rotatably disposed on the sealing plate and movably disposed on one end of the sealing shell close to the blocking member; Among them, the sealing drive is used to drive the sealing plate to approach or move away from the sealing member, and drive the sealing mechanism to approach or move away from the sealing member. The sealing mechanism corresponds to the position of the guide groove, and the sealing mechanism can be partially located in the guide groove when approaching or moving away from the sealing member.

5. The vehicle valve cover leakage detection device according to claim 4, characterized in that: The sealing mechanism comprises: A sealing rotating member, rotatably disposed on one end of the sealing shell close to the blocking member, the sealing rotating member having a rotating channel; and A sealing block, partly located in the sealing accommodation space, rotatably disposed on the sealing plate, and movably disposed in the rotating channel; In which, the sealing block corresponds to the position of the guide groove, and the sealing driving member is used to drive the sealing plate to approach or move away from the blocking member, and drive the sealing block to approach or move away from the blocking member, and the sealing block can be partially located in the guide groove when approaching or moving away from the blocking member; when the sealing driving member drives the sealing plate to make the sealing block approach the blocking member, the end of the sealing block close to the sealing plate approaches the blocking member while the end of the sealing block away from the sealing plate moves away from the driving rod; when the sealing driving member drives the sealing plate to make the sealing block away from the blocking member, the end of the sealing block close to the sealing plate moves away from the blocking member while the end of the sealing block away from the sealing plate approaches the driving rod.

Images