CN108007647B - plugging device for crankcase gas tightness test board - Google Patents
plugging device for crankcase gas tightness test board Download PDFInfo
- Publication number
- CN108007647B CN108007647B CN201711222707.7A CN201711222707A CN108007647B CN 108007647 B CN108007647 B CN 108007647B CN 201711222707 A CN201711222707 A CN 201711222707A CN 108007647 B CN108007647 B CN 108007647B
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- China
- Prior art keywords
- crankcase
- air inlet
- inlet cylinder
- connecting pipe
- disc
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a plugging device for a crankcase gas tightness test board, which comprises a pressing part disc, a guide rod, a small spring, an extrusion part, a sealing ring, a connecting rod, a large spring, an air inlet cylinder, a connecting pipe, a sealing gasket, a sliding fastener, a mounting flange, a connecting nozzle, a filter screen and an adsorption magnet. The invention has the beneficial effects that: the extruded article can slide on the guide bar under the drive of little spring, the guide bar inserts and plays the guide effect in waiting to detect the mounting hole of crankcase, the extruded article makes the guide bar more convenient when breaking away from the crankcase, the middle part of casting die dish is fixed with the proud rubber seal of round, make casting die dish with wait to detect that the crankcase is connected inseparabler of laminating, it has sealed pad to paste on the preceding terminal surface of connecting pipe, make the connecting pipe can not leak gas for waiting to detect the inside gas of crankcase when aerifing, the slip fastener can remove on the connecting rod and be provided with big spring between slip fastener and the casting die dish, can make the automatic resetting of air inlet cylinder after detecting the completion.
Description
Technical Field
The invention relates to a plugging device, in particular to a plugging device for a crankcase gas tightness test board, and belongs to the field of detection equipment.
Background
The tightness test is applied to the quality control application developed for improving the tightness of vehicles, aircrafts, ships and the like in the transportation department, the military department and the basic industry by the tightness evaluation of an internal container, the lower part of a cylinder body is called as a crankcase, the crankcase is divided into an upper crankcase and a lower crankcase, the upper crankcase and the cylinder body are cast into a whole, the lower crankcase is used for storing lubricating oil and sealing the upper crankcase, so the crankcase is also called as an oil pan, so the tightness test must be carried out when the crankcase of the automobile is delivered, the existing plugging device of the crankcase test bench still has certain defects when in use, the existing plugging device cannot be freely and conveniently mounted and dismounted, and is inconvenient to use, and some plugging devices can cause gas leakage when plugging is too simple.
Disclosure of Invention
The invention aims to solve the problems and provide a plugging device for a crankcase gas tightness test bench.
The invention realizes the purpose through the following technical scheme: a plugging device for a crankcase gas tightness test board comprises a pressing part disc, a guide rod, a small spring, an extrusion part, a sealing ring, a connecting rod, a large spring, an air inlet cylinder, a connecting pipe, a sealing gasket, a sliding fastener, a mounting flange, a connecting nozzle, a filter screen and an adsorption magnet; the front end face of the compression part disc is fixedly provided with a guide rod, a small spring and an extrusion part are sleeved on the guide rod, the extrusion part can slide on the guide rod under the driving of the small spring, one end of the small spring is connected to the compression part disc, the other end of the small spring is connected to the extrusion part, the middle of the compression part disc is fixedly provided with a circle of forward convex rubber sealing ring, the rear end face of the compression part disc is connected with two connecting rods, the connecting rods are sleeved with large springs, the front end of the air inlet cylinder is connected with a connecting pipe, a sliding fastener is fixed on the air inlet cylinder and sleeved on the connecting rods, the sliding fastener can move on the connecting rods, a large spring is arranged between the sliding fastener and the compression part disc, and the front end face of the connecting pipe is adhered with; the air inlet cylinder is characterized in that a sealing gasket is arranged on the front end face, corresponding to the pressing part disc, of the air inlet cylinder, a mounting flange is arranged on the air inlet cylinder, a connecting nozzle is arranged on the back face of the air inlet cylinder, a layer of arc-shaped filter screen is arranged inside the air inlet cylinder, and two circles of adsorption magnets are arranged inside the air inlet cylinder close to one end of the connecting pipe.
Further, in order to make the guide rod more easy and convenient when the guide rod is separated from the crankcase, the extrusion piece can slide on the guide rod under the driving of a small spring.
Furthermore, in order to enable the pressing member disc and the crankcase to be detected to be connected and attached more tightly, a circle of forward-convex rubber sealing ring is fixed in the middle of the pressing member disc.
Furthermore, in order to prevent the connecting pipe from leaking air when the interior of the crankcase to be detected is inflated, a layer of rubber sealing gasket is attached to the front end face of the connecting pipe.
Furthermore, in order to enable the crankcase to be detected to be sealed more, a sealing gasket is mounted on the front end face of the air inlet cylinder corresponding to the pressing piece disc.
Further, in order to enable the air inlet cylinder to automatically reset after detection is completed, the sliding fastener can move on the connecting rod, and a large spring is arranged between the sliding fastener and the pressing piece disc.
Furthermore, in order to prevent impurities from being blown into the interior of the crankcase to be detected, an arc-shaped filter screen is arranged in the air inlet cylinder.
Furthermore, in order to suck out the iron slag in the crankcase to be detected, two circles of adsorption magnets are arranged in the air inlet cylinder close to one end of the connecting pipe.
The invention has the beneficial effects that: the plugging device is compact in structural connection and reasonable in design, an extrusion piece can slide on a guide rod under the drive of a small spring, the guide rod is inserted into a mounting hole of a crankcase to be detected to play a role in guiding, the extrusion piece enables the guide rod to be more easily and conveniently separated from the crankcase, a circle of rubber sealing ring protruding forwards is fixed in the middle of a pressing piece disc, the pressing piece disc and the crankcase to be detected are connected and attached more tightly, the crankcase to be detected can not be abraded by the pressing piece disc due to the sealing ring, a layer of rubber sealing gasket is attached to the front end face of a connecting pipe, the connecting pipe can not leak gas when the crankcase to be detected is inflated, a sealing gasket is installed on the front end face of an air inlet cylinder corresponding to the pressing piece disc, the air inlet cylinder and the pressing piece disc can be abutted against the pressing piece disc to play a role in preventing gas leakage, further, the crankcase can be more, can make the automatic resetting of an air inlet section of thick bamboo after detecting the completion, convenient to detach during the detection, air inlet section of thick bamboo internally mounted has the curved filter screen of one deck, prevents that impurity from being blown into to wait to detect inside the crankcase, and air inlet section of thick bamboo has two rings of adsorption magnet near the internally mounted of connecting pipe one end, can will wait to detect the inside scum suction of crankcase, plays clear effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the intake barrel of the present invention;
In the figure: 1. casting die dish, 2, guide bar, 3, little spring, 4, extruded article, 5, sealing washer, 6, connecting rod, 7, big spring, 8, an air inlet section of thick bamboo, 9, connecting pipe, 10, sealed pad, 11, slide fastener, 12, mounting flange, 13, coupling nozzle, 14, filter screen, 15, adsorption magnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a plugging device for a crankcase gas tightness test platform comprises a compression piece disc 1, a guide rod 2, a small spring 3, an extrusion piece 4, a sealing ring 5, a connecting rod 6, a large spring 7, an air inlet cylinder 8, a connecting pipe 9, a sealing gasket 10, a sliding fastener 11, a mounting flange 12, a connecting nozzle 13, a filter screen 14 and an adsorption magnet 15; a guide rod 2 is fixed on the front end surface of the casting die disc 1, a small spring 3 and a casting die 4 are sleeved on the guide rod 2, the extrusion part 4 can slide on the guide rod 2 under the driving of a small spring 3, one end of the small spring 3 is connected with the extrusion part disc 1, the other end is connected with the extrusion part 4, a circle of rubber sealing ring 5 which is convex in front is fixed at the middle part of the pressing part disc 1, two connecting rods 6 are connected on the rear end surface of the pressing part disc 1, the connecting rod 6 is sleeved with a large spring 7, the front end of the air inlet cylinder 8 is connected with a connecting pipe 9, a sliding fastener 11 is fixed on the air inlet cylinder 8, the sliding fastener 11 is sleeved on the connecting rod 6, the sliding fastener 11 can move on the connecting rod 6, a large spring 7 is arranged between the sliding fastener 11 and the pressing piece disc 1, and a layer of rubber sealing gasket 10 is attached to the front end face of the connecting pipe 9; the front end face, corresponding to the pressing piece disc 1, of the air inlet cylinder 8 is provided with a sealing gasket 10, the air inlet cylinder 8 is provided with a mounting flange 12, the back face of the air inlet cylinder 8 is provided with a connecting nozzle 13, a layer of arc-shaped filter screen 14 is arranged inside the air inlet cylinder 8, and two circles of adsorption magnets 15 are arranged inside one end, close to the connecting pipe 9, of the air inlet cylinder 98.
The invention is a technical optimization scheme: the extrusion part 4 can slide on the guide rod 2 under the driving of the small spring 3; a circle of forward convex rubber sealing ring 5 is fixed in the middle of the pressing member disc 1; a layer of rubber sealing gasket 11 is attached to the front end face of the connecting pipe 9; a sealing gasket 10 is arranged on the front end surface of the air inlet cylinder 8 corresponding to the compression die plate 1; the sliding fastener 11 can move on the connecting rod 6, and a large spring 7 is arranged between the sliding fastener 11 and the pressing piece disc 1; a layer of arc-shaped filter screen 14 is arranged in the air inlet cylinder 8; two circles of adsorption magnets 15 are arranged inside the air inlet cylinder 8 close to one end of the connecting pipe 9.
When the crankcase pressure-bearing device is used, the mounting flange is firstly mounted on the corresponding stroke cylinder, the connecting nozzle is connected with the air pipe, the crankcase to be detected is mounted on the corresponding clamp, then the stroke cylinder is started, then the whole plugging device moves forwards, the guide rod enters the crankcase to be detected to play a role in guiding and positioning, then the pressure casting plate firstly contacts the crankcase to be detected, then the connecting pipe continuously moves forwards to contact with an air inlet of the crankcase to be detected to play a role in sealing, the air inlet cylinder and the pressure casting plate are squeezed together to play a role in double sealing, and during operation, air is input into the connecting pipe through the guide pipe and then enters the inside of the crankcase to be detected.
it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a plugging device that crankcase gas tightness testboard was used which characterized in that: the device comprises a pressing part disc (1), a guide rod (2), a small spring (3), an extrusion part (4), a sealing ring (5), a connecting rod (6), a large spring (7), an air inlet cylinder (8), a connecting pipe (9), a sealing gasket (10), a sliding fastener (11), a mounting flange (12), a connecting nozzle (13), a filter screen (14) and an adsorption magnet (15); the guide rod (2) is fixed on the front end face of the pressing part disc (1), the guide rod (2) is sleeved with a small spring (3) and an extrusion part (4), one end of the small spring (3) is connected to the pressing part disc (1) while the other end is connected to the extrusion part (4), a sealing ring (5) is fixed in the middle of the pressing part disc (1), two connecting rods (6) are connected to the rear end face of the pressing part disc (1), a large spring (7) is sleeved on each connecting rod (6), a connecting pipe (9) is connected to the front end of the air inlet cylinder (8), a sliding fastener (11) is fixed on the air inlet cylinder (8), the sliding fastener (11) is sleeved on the connecting rods (6), a sealing gasket (10) is installed on the end face of the connecting pipe (9) and the end face of the air inlet cylinder (8) connected with the connecting pipe (9), a mounting flange (12) is installed on the air, the back of the air inlet cylinder (8) is provided with a connecting nozzle (13), a filter screen (14) is arranged in the air inlet cylinder (8), and an adsorption magnet (15) is arranged in the air inlet cylinder (8);
the guide rod (2) enters a crankcase to be detected to play a role in guiding and positioning, the pressing piece disc (1) firstly contacts the crankcase to be detected, then the connecting pipe (9) continues to move forwards to contact with an air inlet of the crankcase to be detected to play a role in sealing, the air inlet cylinder (8) and the pressing piece disc (1) are squeezed together to play a role in double sealing, and during operation, gas is input into the connecting pipe through the guide pipe and then enters the inside of the crankcase to be detected.
2. The plugging device for the crankcase gas tightness test bench according to claim 1, wherein: the extrusion piece (4) can slide on the guide rod (2) under the driving of the small spring (3).
3. The plugging device for the crankcase gas tightness test bench according to claim 1, wherein: and a circle of forward convex rubber sealing ring (5) is fixed in the middle of the pressing member disc (1).
4. A plugging device for a crankcase gas tightness test stand according to claim 3, characterized in that: a layer of rubber sealing gasket (10) is attached to the front end face of the connecting pipe (9).
5. The plugging device for the crankcase gas tightness test bench according to claim 1, wherein: and a sealing gasket (10) is arranged on the front end surface of the air inlet cylinder (8) corresponding to the pressing piece disc (1).
6. The plugging device for the crankcase gas tightness test bench according to claim 1, wherein: the sliding fastener (11) can move on the connecting rod (6), and a large spring (7) is arranged between the sliding fastener (11) and the pressing piece disc (1).
7. The plugging device for the crankcase gas tightness test bench according to claim 1, wherein: and a layer of arc-shaped filter screen (14) is arranged in the air inlet cylinder (8).
8. The plugging device for the crankcase gas tightness test bench according to claim 1, wherein: and two circles of adsorption magnets (15) are arranged in the air inlet cylinder (8) close to one end of the connecting pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222707.7A CN108007647B (en) | 2017-11-29 | 2017-11-29 | plugging device for crankcase gas tightness test board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222707.7A CN108007647B (en) | 2017-11-29 | 2017-11-29 | plugging device for crankcase gas tightness test board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108007647A CN108007647A (en) | 2018-05-08 |
| CN108007647B true CN108007647B (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711222707.7A Active CN108007647B (en) | 2017-11-29 | 2017-11-29 | plugging device for crankcase gas tightness test board |
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| Country | Link |
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| CN (1) | CN108007647B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020113684A1 (en) | 2020-05-20 | 2021-11-25 | Bayerische Motoren Werke Aktiengesellschaft | Pressure test device for an internal combustion engine, internal combustion engine with a pressure test device and method for performing a pressure test |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1137890A (en) * | 1997-07-17 | 1999-02-12 | Honda Motor Co Ltd | Pressure leakage inspector |
| CN203551218U (en) * | 2013-10-14 | 2014-04-16 | 津伦（天津）精密机械股份有限公司 | Leak hunting clamp with multilayer plugging surface in one direction |
| CN203717907U (en) * | 2013-12-20 | 2014-07-16 | 浙江吉利控股集团有限公司 | Inner hole plugging device for leakage testing |
| CN105021358A (en) * | 2015-07-07 | 2015-11-04 | 奇瑞汽车股份有限公司 | Engine crankshaft oil seal leakage detection device |
| CN106404293A (en) * | 2016-10-17 | 2017-02-15 | 大连现代辅机开发制造有限公司 | Crankcase leakage test sealing method and sealing device |
| CN206132317U (en) * | 2016-10-09 | 2017-04-26 | 上海智钊自动化有限公司 | Pipeline leakproofness detects plugging device of usefulness |
-
2017
- 2017-11-29 CN CN201711222707.7A patent/CN108007647B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1137890A (en) * | 1997-07-17 | 1999-02-12 | Honda Motor Co Ltd | Pressure leakage inspector |
| CN203551218U (en) * | 2013-10-14 | 2014-04-16 | 津伦（天津）精密机械股份有限公司 | Leak hunting clamp with multilayer plugging surface in one direction |
| CN203717907U (en) * | 2013-12-20 | 2014-07-16 | 浙江吉利控股集团有限公司 | Inner hole plugging device for leakage testing |
| CN105021358A (en) * | 2015-07-07 | 2015-11-04 | 奇瑞汽车股份有限公司 | Engine crankshaft oil seal leakage detection device |
| CN206132317U (en) * | 2016-10-09 | 2017-04-26 | 上海智钊自动化有限公司 | Pipeline leakproofness detects plugging device of usefulness |
| CN106404293A (en) * | 2016-10-17 | 2017-02-15 | 大连现代辅机开发制造有限公司 | Crankcase leakage test sealing method and sealing device |
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| Publication number | Publication date |
|---|---|
| CN108007647A (en) | 2018-05-08 |
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