CN207163679U - A kind of air-tightness detection device for clutch master cylinder - Google Patents
A kind of air-tightness detection device for clutch master cylinder Download PDFInfo
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- CN207163679U CN207163679U CN201720641360.9U CN201720641360U CN207163679U CN 207163679 U CN207163679 U CN 207163679U CN 201720641360 U CN201720641360 U CN 201720641360U CN 207163679 U CN207163679 U CN 207163679U
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Abstract
The utility model provides a kind of air-tightness detection device for clutch master cylinder, including main part, malleation detecting system and detection of negative pressure system.Wherein, main part includes horizontal workbench, the master cylinder detent mechanism being vertically installed in above workbench, the first detection unit and the second detection unit；Malleation detecting system is connected to oil supplying hole by the first detection unit, to provide positive air pressure for first chamber；Detection of negative pressure system is connected to oil outlet by the second detection unit, to provide negative pressure for second chamber.Air-tightness detection device of the present utility model leads to manufactures malleation and the next disposable air-tightness for detecting master cylinder different chamber and piston of subnormal ambient respectively in master cylinder different chamber, further to improve detection efficiency and accuracy rate.
Description
Technical field
Vehicle production field is the utility model is related to, more particularly to a kind of air-leakage test for clutch master cylinder fills
Put.
Background technology
Clutch master cylinder is the major part for forming clutch, and the air-tightness of the master cylinder is bad to cause clutch using
During there are the problems such as failure, operation exception, efficiency reduction, the lost of life, environmental pollution.Therefore master cylinder is before dispatching from the factory
Need most important to air-leakage test.The height of air-leakage test technical merit can directly affect production efficiency, operating personnel
Labor intensity and product final mass.Generally use applies the gases at high pressure of certain pressure to measured piece in the prior art
Mode carries out the detection of air-tightness, but because clutch master cylinder is generally divided into two chambers by piston, single experiment can not
The detection of different chamber and plug part air-tightness is realized simultaneously, and repeated detection can then cause the increase of manual operation intensity
And the reduction of detection efficiency.Therefore it is badly in need of all high air-leakage test dress of a kind of cheap cost, detection efficiency and accuracy
Put.
Utility model content
The defects of in order to overcome in the presence of prior art, the utility model provide a kind of for the airtight of clutch master cylinder
Property detection means, manufacture malleation and subnormal ambient respectively in master cylinder different chamber disposably to detect master cylinder different chamber to lead to
And the air-tightness of piston, further to improve detection efficiency and accuracy rate.
A kind of air-tightness detection device for clutch master cylinder of the present utility model, the clutch master cylinder include cylinder body,
Oil supplying hole, oil outlet, push rod and the piston for being connected to push rod one end, push rod promote piston to be slided in cylinder interior, and this is airtight
Property detection means includes main part, malleation detecting system and detection of negative pressure system, wherein,
Main part includes horizontal workbench, the master cylinder detent mechanism being vertically installed in above workbench, the first detection
Unit and the second detection unit；
Master cylinder detent mechanism is used to clutch master cylinder being positioned above workbench, wherein piston be located in oil supplying hole and
Isolating seal position between oil outlet, so that oil supplying hole and oil outlet connect with first chamber and second chamber respectively；
Malleation detecting system includes aerating device and by inflation inlet, the first standard chamber, the first detection tabs, first pressure
The loop that sensor and gas outlet are made up of pipeline, and malleation detecting system is connected to fuel feeding by the first detection unit
Hole, to provide positive air pressure for first chamber；And
Detection of negative pressure system malleation detecting system includes aerating device and by bleeding point, the second standard chamber, the second detection
The loop that joint, second pressure sensor and air inlet are made up of pipeline, and detection of negative pressure system is single by the second detection
Member is connected to oil outlet, to provide negative pressure for second chamber.
Further, master cylinder detent mechanism includes the base above workbench, the support perpendicular to base, is arranged at
Positioning cylinder directly over support and ram seat, hold-down support and the adjustable seats set gradually from bottom to up along support, its
In
Diameter is provided with hold-down support less than cylinder body and more than the hole of push rod, to support the bottom of cylinder body；
The position of adjustable seats can be adjusted along the direction of support, and it is adjustable that diameter is provided with adjustable seats
Hole, to accommodate cylinder body and to limit the horizontal level of cylinder body；
The position of ram seat can vertically be adjusted；
The output end of positioning cylinder is pointed to cylinder body and set, and the lock for locking cylinder body tip position is provided with output end
Head, to coordinate hold-down support to limit the upright position of cylinder body.
Further, the first detection unit includes the first column perpendicular to workbench, to be adjustably fixed on first vertical
The first cylinder on post and be fixed on the first cylinder output end the first connector, the first detection tabs pass through first and connect
Fitting is connected to oil supplying hole, to provide positive air pressure for first chamber.
Further, the second detection unit includes the second column perpendicular to workbench, to be adjustably fixed on second vertical
The second cylinder on post and be fixed on the second cylinder output end the second connector, the second detection tabs pass through second and connect
Fitting is connected to oil supplying hole, to provide positive air pressure for second chamber.
Further, inflation inlet is connected to aerating device by gas tube, is provided with and fills between inflation inlet and aerating device
Air valve；Gas outlet is connected by escape pipe with outside air, and outlet valve is provided with escape pipe.
Further, first pressure contrast sensor, inflation inlet are provided between the first standard chamber and the first detection tabs
The first standard chamber control valve is provided between the first standard chamber, and first is provided between the first detection tabs and gas outlet
Master cylinder control valve.
Further, bleeding point is connected to air extractor by exhaust tube, is provided with and takes out between bleeding point and air extractor
Air valve；Air inlet is connected by air inlet pipe with outside air, and air intake valve is provided with air inlet pipe.
Further, second pressure contrast sensor, bleeding point are provided between the second standard chamber and the second detection tabs
The second standard chamber control valve is provided between the second standard chamber, and second is provided between the second detection tabs and air inlet
Master cylinder control valve.
A kind of clutch master cylinder air-tightness detection method, is comprised the steps of：
Step 1：Clutch master cylinder is fixed on master cylinder detent mechanism, the piston of wherein clutch master cylinder is located in confession
Isolating seal position between oilhole and oil outlet, so that oil supplying hole and oil outlet connect with first chamber and second chamber respectively
It is logical；
Step 2：Malleation detecting system is connected to oil supplying hole by the first detection unit, and detection of negative pressure system is passed through
Second detection unit is connected to oil outlet；
Step 3：Open inflation inlet and close gas outlet and inflate the first predetermined amount of time for first chamber, pass through first pressure
Whether pressure value is in the first preset range in sensor detection first chamber；Open bleeding point simultaneously and close air inlet and be
Second chamber is evacuated the first predetermined amount of time, detects whether pressure value in second chamber is in second by second pressure sensor
In preset range；
Step 4：Opening gas outlet and air inlet makes to recover normal barometric pressure in the first cup and in second chamber, detection knot
Beam.
Further, this method also includes：
Step 3 between step 3 and step 4 '：Close the first standard chamber control valve and the first master cylinder control valve is kept
Second predetermined amount of time, whether pressure difference value is in the 3rd preset range shown in detection first pressure contrast sensor；Simultaneously
Close the second standard chamber control valve and the second master cylinder control valve keeps the second predetermined amount of time, detection second pressure contrast sensor
Whether shown pressure difference value is in the 3rd preset range.
Due to being used in upper technical scheme, the utility model has the following advantages that compared with prior art：
1. air-tightness detection device of the present utility model manufactures malleation and negative pressure ring respectively in master cylinder different chamber simultaneously
Border, the air-leakage test of different chamber, oil supplying hole, oil outlet and piston can be disposably completed, further improve detection effect
Rate；
2. piston both sides draught head significantly increases, the air-tightness defect of piston is just easily detected, detection accuracy is higher；
3. detection process is divided into inflation/pumping detection-phase and pressurize detection-phase, testing result is further increased
Accuracy.
Brief description of the drawings
Fig. 1 is the schematic diagram of clutch master cylinder；
Fig. 2 is the schematic diagram of the main part according to air-tightness detection device of the present utility model；
Fig. 3 is the schematic diagram of the malleation detecting system according to air-tightness monitoring device of the present utility model；
Fig. 4 is the schematic diagram of the detection of negative pressure system according to air-tightness detection device of the present utility model.
Description of reference numerals：
100 master cylinders, 110 cylinder bodies, 111 first chambers, 112 second chambers, 120 oil supplying holes, 130 oil outlets, 140 push rods,
150 pistons, 200 main parts, 210 workbench, 220 master cylinder detent mechanisms, 221 bases, 222 supports, 223 ram seats, 224 is solid
Determine bearing, 225 adjustable seats, 226 positioning cylinders, 227 tapered ends, 228 connecting rods, 230 first detection units, 231 first columns,
232 first cylinders, 233 first connectors, 240 second detection units, 241 second columns, 242 second cylinders, 243 second connections
Part, 300 malleation detecting systems, 310 inflation inlets, 311 gas tubes, 312 charging valves, 320 first standard chambers, 330 first detections
Joint, 340 first pressure sensors, 350 gas outlets, 351 escape pipes, 352 outlet valves, 360 first pressures contrast sensor,
370 first standard chamber control valves, 380 first master cylinder control valves, 400 detection of negative pressure systems, 410 bleeding points, 411 exhaust tubes, 412
Evacuating valve, 420 second standard chambers, 430 second detection tabs, 440 second pressure sensors, 450 air inlets, 451 air inlet pipe,
452 air intake valves, 460 second pressures contrast sensor, 470 second standard chamber control valves, 480 second master cylinder control valves.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, with reference to embodiment, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining that this practicality is new
Type, it is not used to limit the utility model.
The schematic diagram for the clutch master cylinder 100 that Fig. 1 is applicable by the utility model.There is master cylinder 100 traditional master cylinder to be total to
Some features, it includes cylinder body 110, oil supplying hole 120, oil outlet 130, push rod 140 and the piston for being connected to the one end of push rod 140
150, wherein push rod 140 can promote piston 150 that the space inside cylinder body 110 is divided into two in the internal slide of cylinder body 110
Individual different chamber, i.e. first chamber 111 and second chamber 112.In detection process of the present utility model, it is desirable to pass through push rod
140 are pushed into piston 150 the isolating seal position between oil supplying hole 120 and oil outlet 130, even if oil supplying hole 120 and oil outlet
130 connect with first chamber 111 and second chamber 112 respectively.
Clutch master cylinder air-tightness detection device of the present utility model is overall by main part 200, malleation detecting system 300
Formed with detection of negative pressure system 400, Fig. 2-4 respectively illustrates the specific composition of above three parts.Wherein, main part 200 is used
Clutch master cylinder 100 to be measured is supported and positions, and by for providing positive air pressure for first chamber 111 and detecting its air-tightness
Malleation detecting system 300 and divide for providing negative pressure for second chamber 112 and detecting the detection of negative pressure system 400 of its air-tightness
Oil supplying hole 120 and oil outlet 130 are not connected to.
As shown in Fig. 2 main part 200 includes horizontal workbench 210, is vertically installed in the master of the top of workbench 210
Cylinder positioning mechanism 220, the first detection unit 230 and the second detection unit 240.Wherein, master cylinder detent mechanism 220 be used for support and
Clutch master cylinder 100 to be measured is positioned, the first detection unit 230 and the second detection unit 240 are then respectively used to detect malleation
System 300 and detection of negative pressure system 400 are connected to oil supplying hole 120 and oil outlet 130.
Master cylinder detent mechanism 220 include the base 221 positioned at the top of workbench 210, the support 222 perpendicular to base 221,
The positioning cylinder 226 being arranged at directly over support 222 and the ram seat 223 set gradually from bottom to up along support 222, fix
Bearing 224 and adjustable seats 225.Diameter is wherein provided with hold-down support 224 less than cylinder body 110 and is more than the hole of push rod 150,
For supporting the bottom of cylinder body 110.The position of adjustable seats 225 can be adjusted along the direction of support 222, and adjustable supporting
The adjustable hole of diameter is provided with seat 225, to accommodate the cylinder body 110 of different size and to limit the horizontal level of cylinder body 110.Push away
The position of pole socket 223 can vertically be adjusted, to limit the position of push rod 140.The output end of positioning cylinder 226 refers to
Set to cylinder body 110, the tapered end for locking the top of cylinder body 110 is provided with the output end, to coordinate hold-down support 224
Limit the upright position of cylinder body 110.During operation, temporarily appropriate location can will be moved in adjustable seats 225, by master cylinder 100 to be measured
Push rod is inserted in the hole of hold-down support 224 down, then adjustable seats 225 are moved down and are fixed to the position close to the middle part of cylinder body 110
Put, the size in hole in adjustable seats 225 is adjusted, to fetter cylinder body 110 to prevent it from producing any horizontal position in measurement process
Move.The position of the output end of positioning cylinder 226 is further adjusted, makes the top of tapered end locking cylinder body 110, cylinder body 110 is existed
It is defined in vertical direction between hold-down support 224 and tapered end, prevents it from producing displacement in vertical direction.Positioning cylinder 226
Itself it can be fixed on support 222 or any part fixed relative to workbench 210.Finally, ram seat 223 is adjusted
Vertical height, the isolating seal position that piston 150 is positioned between oil supplying hole 120 and oil outlet 130.
In embodiment of the present utility model, the first detection unit 230 includes standing perpendicular to the first of the workbench 210
Post 231, the first cylinder 232 being adjustably fixed on the first column 231 and the output end for being fixed on the first cylinder 232
The first connector 233.During operation, the first cylinder 232 can be adjusted to appropriate location along the first column about 231 and be consolidated
It is fixed, so that the output end of the first cylinder 232 is easy to implement malleation detecting system 300 and oil supplying hole 120 close to oil supplying hole 120
Connection.Likewise, the second detection unit 240 includes the second column 241 perpendicular to the workbench 210, adjustably fixed
In the second cylinder 242 on the second column 241 and the second connector 243 of the output end for being fixed on the second cylinder 242.Its
Operating principle is similar to malleation detection unit 230.
As shown in figure 3, malleation detecting system 300 includes aerating device (not shown) and at least by inflation inlet 310, first
The loop that standard chamber 320, the first detection tabs 330, first pressure sensor 340 and gas outlet 350 are made up of pipeline.Its
In, aerating device is connected to inflation inlet 310 by gas tube 311, it is preferable that can be between inflation inlet 310 and aerating device
It is provided for the charging valve 312 for controlling aerating device to open and close.First detection tabs 330 can be fixed on the first detection unit
On 230 the first connector 233, to access the oil supplying hole 120 of master cylinder 100, first chamber 111 is set to be closed as gases at high pressure
The part in loop.The gases at high pressure that aerating device is provided enter loop by inflation inlet 310, and circulation flows through standard chamber 320
With first chamber 111, now first pressure sensor 340 can show in closed circuit --- i.e. in first chamber 111 ---
Air pressure, operator can be by the way that the measured value be contrasted with preset range, to show whether first chamber air-tightness good
It is good.Gas outlet 350 is connected by escape pipe 351 with outside air, can be provided for opening and closing gas outlet on the escape pipe 351
352 outlet valve, outlet valve 352 can be opened after end to be tested, to recover the air pressure in first chamber 111.
Preferably, first pressure can be set to contrast sensor between the first standard chamber 320 and the first detection tabs 330
360, the first standard chamber control valve 370 is set between the standard chamber 320 of inflation inlet 310 and first, and in the first detection tabs
First master cylinder control valve 380 is set between 330 and gas outlet 350.It is so designed that after being full of gases at high pressure in the loop and leads to
Cross and simultaneously close off the first standard chamber control valve 370 and the first master cylinder control valve 380 to keep the first standard chamber 320 and first chamber
Pressure in 111, once first chamber 111 leaks air, then first pressure contrast sensor 360 will show gases at high pressure by
First standard chamber 320 flows to first chamber 111.Operator can be by judging that first pressure contrasts pressure shown in sensor 360
Whether difference is in preset range to determine whether the air-tightness of first chamber 111 is good.
Fig. 4 is the schematic diagram of detection of negative pressure system 400.As illustrated, detection of negative pressure system 400 can include air extractor
(not shown) and at least by bleeding point 410, the second standard chamber 420, the second detection tabs 430, the and of second pressure sensor 440
The loop that air inlet 450 is made up of pipeline.Wherein, air extractor is connected to bleeding point 410 by exhaust tube 411, it is preferable that
The evacuating valve 412 for controlling air extractor to open and close can be provided between bleeding point 410 and air extractor.Second detection connects
First 430 can be fixed on the second connector 243 of the second detection unit 240, to access the oil outlet 130 of master cylinder 100,
Second chamber 112 is set to turn into a part for negative-pressure gas closed-loop path.The operating principle of detection of negative pressure system 400 detects with malleation
System 300 is similar, and its specific difference is that detection of negative pressure system 400 extracts the air in closed circuit by air extractor, is
Second chamber 112 manufactures environment under low pressure.It is also preferable that it can be set between the second standard chamber 420 and the second detection tabs 430
Second pressure contrast sensor 460 is put, the second standard chamber control valve is set between the standard chamber 420 of bleeding point 310 and second
470, and the first master cylinder control valve 480 is set between the second detection tabs 430 and air inlet 450.To close at the same time
By judging that second pressure contrasts sensor in the case of the pressurize of second standard chamber control valve 470 and the first master cylinder control valve 480
Whether the pressure difference value shown in 460 is in preset range to determine whether the air-tightness of second chamber 112 is good.
The air-tightness of clutch master cylinder is detected using air-tightness detection device of the present utility model, following step can be passed through
It is rapid to implement：
Step 1：Clutch master cylinder 100 is fixed on master cylinder detent mechanism 220, it is ensured that the piston of clutch master cylinder 100
150 are located in the isolating seal position between oil supplying hole 120 and oil outlet 130, so that oil supplying hole 120 and oil outlet 130 divide
Do not connected with first chamber 111 and second chamber 112.
Step 2：Malleation detecting system 300 is connected to oil supplying hole 120 by the first detection unit 230, and negative pressure is examined
Examining system 400 is connected to oil outlet 130 by the second detection unit 240.Alternatively, also can be by malleation detecting system 300
Oil outlet 130 is connected to by the first detection unit 230, and detection of negative pressure system 400 is connected by the second detection unit 240
To oil supplying hole 120, to provide negative pressure for first chamber 111, malleation is provided for second chamber 112.
Step 3：Open inflation inlet 310 and close gas outlet 350 and inflate the first predetermined amount of time for first chamber 111, lead to
Cross first pressure sensor 340 and detect whether pressure value in first chamber 111 is in the first preset range；Open pumping simultaneously
Mouth 410 simultaneously closes air inlet 450 as the first predetermined amount of time of pumping of second chamber 112, is detected by second pressure sensor 440
Whether pressure value is in the second preset range in second chamber 112.If first pressure sensor 340 and/or second pressure pass
Pressure value shown in sensor 440 then shows that detected master cylinder air-tightness is bad, can be immediately finished not in its corresponding preset range
Detection process.In embodiment of the present utility model, 4s may be selected in the first predetermined amount of time and the second predetermined amount of time, and first is pre-
Determining scope and the second preset range can come according to detected master cylinder capacity and aerating device, the carrying out practically parameter of air extractor
It is determined that.
When detection means includes pressure comparison sensor, pressurize and pressure comparison can be carried out after the completion of above-mentioned detection
Test, specially step 3 '：Close the first standard chamber control valve 370 and the first master cylinder control valve 380 is kept for second scheduled time
Section, whether pressure difference value is in the 3rd preset range shown in detection first pressure contrast sensor 360；Simultaneously close off the second mark
The quasi- master cylinder control valve 480 of chamber control valve 470 and second keeps the second predetermined amount of time, detection second pressure contrast sensor 460
Whether shown pressure difference value is in the 3rd preset range.If first pressure contrasts sensor 360 and/or second pressure contrast passes
Pressure value shown in sensor 460 then shows that detected master cylinder air-tightness is bad, can be immediately finished not in its corresponding preset range
Detection process.In embodiment of the present utility model, 2s may be selected in the 3rd predetermined amount of time and the 4th predetermined amount of time, and the 3rd is pre-
Determining scope and the 4th preset range can then determine according to specific test status.
Step 4：Opening gas outlet and air inlet makes to recover normal barometric pressure in the first cup and in second chamber, detection knot
Beam.
Air-tightness detection device of the present utility model is entered to the two chambers of master cylinder simultaneously by using two groups of detecting systems
Row detection, effectively increases operating efficiency.Malleation and negative pressure and two chambers are respectively adopted using malleation/negative in two groups of detecting systems
Pressure makes testing result more accurate compared to the air-tightness that can more accurately detect piston.
Above example only expresses embodiment of the present utility model, and its description is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the utility model patent scope.It should be pointed out that for one of ordinary skill in the art
For, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this practicality
New protection domain.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (8)
1. a kind of air-tightness detection device for clutch master cylinder, the clutch master cylinder includes cylinder body, oil supplying hole, fuel-displaced
Hole, push rod and the piston for being connected to described push rod one end, the push rod promote the piston to be slided in the cylinder interior, its
It is characterised by, the air-tightness detection device includes main part, malleation detecting system and detection of negative pressure system, wherein,
The main part includes horizontal workbench, the master cylinder detent mechanism being vertically installed in above the workbench, first
Detection unit and the second detection unit；
The master cylinder detent mechanism is used to the clutch master cylinder being positioned above the workbench, wherein the piston is determined
Isolating seal position between the oil supplying hole and the oil outlet so that the oil supplying hole and the oil outlet respectively with
First chamber connects with second chamber；
The malleation detecting system includes aerating device and by inflation inlet, the first standard chamber, the first detection tabs, first pressure
The loop that sensor and gas outlet are made up of pipeline, and the malleation detecting system is connected by first detection unit
To the oil supplying hole, to provide positive air pressure for the first chamber；And
Malleation detecting system described in the detection of negative pressure system includes aerating device and by bleeding point, the second standard chamber, second
The loop that detection tabs, second pressure sensor and air inlet are made up of pipeline, and the detection of negative pressure system passes through institute
State the second detection unit and be connected to the oil outlet, to provide negative pressure for the second chamber.
2. the air-tightness detection device according to claim 1 for clutch master cylinder, it is characterised in that the master cylinder is determined
Position mechanism includes the base above the workbench, the support perpendicular to the base, is arranged at directly over the support
Positioning cylinder and the ram seat, hold-down support and the adjustable seats that are set gradually from bottom to up along the support, wherein
Diameter is provided with the hold-down support less than the cylinder body and more than the hole of the push rod, to support the bottom of the cylinder body
Portion；
The position of the adjustable seats can be adjusted along the direction of the support, and be provided with diameter in the adjustable seats
Adjustable hole, to accommodate the cylinder body and to limit the horizontal level of the cylinder body；
The position of the ram seat can vertically be adjusted；
The output end of the positioning cylinder is set towards the cylinder body, is provided with the output end for locking the cylinder body top
The tapered end of portion position, to coordinate the hold-down support to limit the upright position of the cylinder body.
3. the air-tightness detection device according to claim 1 for clutch master cylinder, it is characterised in that first inspection
Survey unit include perpendicular to the workbench the first column, be adjustably fixed on first column the first cylinder,
And the first connector of the output end of first cylinder is fixed on, first detection tabs pass through first connector
The oil supplying hole is connected to, to provide positive air pressure for the first chamber.
4. the air-tightness detection device according to claim 1 for clutch master cylinder, it is characterised in that second inspection
Survey unit include perpendicular to the workbench the second column, be adjustably fixed on second column the second cylinder,
And the second connector of the output end of second cylinder is fixed on, second detection tabs pass through second connector
The oil supplying hole is connected to, to provide positive air pressure for the second chamber.
5. the air-tightness detection device according to claim 1 for clutch master cylinder, it is characterised in that the inflation inlet
The aerating device is connected to by gas tube, charging valve is provided between the inflation inlet and the aerating device；It is described
Gas outlet is connected by escape pipe with outside air, and outlet valve is provided with the escape pipe.
6. the air-tightness detection device according to claim 1 for clutch master cylinder, it is characterised in that first mark
First pressure contrast sensor, the inflation inlet and the first standard chamber are provided between quasi- chamber and first detection tabs
Between be provided with the first standard chamber control valve, and be provided with the first master cylinder between first detection tabs and the gas outlet
Control valve.
7. the air-tightness detection device according to claim 1 for clutch master cylinder, it is characterised in that the bleeding point
Air extractor is connected to by exhaust tube, evacuating valve is provided between the bleeding point and the air extractor；The air inlet
Mouth is connected by air inlet pipe with outside air, and air intake valve is provided with the air inlet pipe.
8. the air-tightness detection device according to claim 1 for clutch master cylinder, it is characterised in that second mark
Second pressure contrast sensor, the bleeding point and the second standard chamber are provided between quasi- chamber and second detection tabs
Between be provided with the second standard chamber control valve, and be provided with the second master cylinder between second detection tabs and the air inlet
Control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720641360.9U CN207163679U (en) | 2017-06-05 | 2017-06-05 | A kind of air-tightness detection device for clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720641360.9U CN207163679U (en) | 2017-06-05 | 2017-06-05 | A kind of air-tightness detection device for clutch master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163679U true CN207163679U (en) | 2018-03-30 |
Family
ID=61711333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720641360.9U Active CN207163679U (en) | 2017-06-05 | 2017-06-05 | A kind of air-tightness detection device for clutch master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207163679U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969891A (en) * | 2017-06-05 | 2017-07-21 | 福缔汽车（太仓）有限公司 | A kind of air-tightness detection device and method for clutch master cylinder |
| CN109282952A (en) * | 2018-08-29 | 2019-01-29 | 西北工业大学 | Positive and negative constant pressure sealing property detection system and method |
| CN114264427A (en) * | 2020-09-16 | 2022-04-01 | 阿文美驰技术有限责任公司 | System and method for checking the sealing of a brake caliper housing |
-
2017
- 2017-06-05 CN CN201720641360.9U patent/CN207163679U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969891A (en) * | 2017-06-05 | 2017-07-21 | 福缔汽车（太仓）有限公司 | A kind of air-tightness detection device and method for clutch master cylinder |
| CN109282952A (en) * | 2018-08-29 | 2019-01-29 | 西北工业大学 | Positive and negative constant pressure sealing property detection system and method |
| CN114264427A (en) * | 2020-09-16 | 2022-04-01 | 阿文美驰技术有限责任公司 | System and method for checking the sealing of a brake caliper housing |
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