CN204594638U - A kind of fuel system air tightness test sampler - Google Patents
A kind of fuel system air tightness test sampler Download PDFInfo
- Publication number
- CN204594638U CN204594638U CN201520274952.2U CN201520274952U CN204594638U CN 204594638 U CN204594638 U CN 204594638U CN 201520274952 U CN201520274952 U CN 201520274952U CN 204594638 U CN204594638 U CN 204594638U
- Authority
- CN
- China
- Prior art keywords
- wireway
- chuck
- deck
- groove
- clamping arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000002828 fuel tank Substances 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
A kind of fuel system air tightness test sampler, comprise deck, the outer rim of deck is arranged with boosting-rod, the bottom surface of deck is provided with the groove that can hold fuel tank oiling end, wireway is provided with in deck center pit, wireway upper end exposes to outside deck, wireway outer surface is provided with multiple gas port, wireway lower end is fixed in groove by the baffle plate on it, ring groove is formed between baffle plate outer edge surface and groove wall, the sealing gasket be fixedly connected with is provided with in ring groove, on wireway lower end, cover has chuck, chuck is fixedly connected with baffle plate bottom surface, the bore dia of diameter of chuck and tank filler adapts, the outer rim of described chuck is evenly distributed in clamping arm, the bottom surface of chuck is evenly distributed in jump ring arc along limit place, clamping arm and jump ring arc alternative arrangement, described clamping arm upper surface is arcwall face.This device volume is little, quality light, good seal performance, simple to operation; Can efficient, quick, high-qualityly be connected with tank filler.
Description
Technical field
The utility model belongs to device for detecting sealability field, especially a kind of fuel system air tightness test sampler.
Background technology
Clamping arm in existing fuel system air tightness test sampler generally adopts thin has flexible steel disc, and its clamping force is from the dual distortion of shell fragment and cushion.Because the thin and rigidity of its clamping arm is inadequate, when exist in test macro comparatively atmospheric pressure time, clamping arm crushes easily, and easily leaks gas.Because of greatly stressed and dismounting back and forth, also exist and easily damage the problems such as the life-span is short.
Summary of the invention
The utility model provides a kind of fuel system air tightness test sampler, and it is convenient that this device has mounting or dismounting, the advantage that sealing is strong, and avoids the problem of damage tank filler.
In order to solve the problems of the technologies described above, technical solutions of the utility model are: a kind of fuel system air tightness test sampler, comprise deck, the outer rim of deck is arranged with boosting-rod, the bottom surface of deck is provided with the groove that can hold fuel tank oiling end, wireway is provided with in deck center pit, wireway upper end exposes to outside deck, wireway outer surface is provided with multiple gas port, it is characterized in that: wireway lower end is fixed in groove by the baffle plate on it, ring groove is formed between baffle plate outer edge surface and groove wall, the sealing gasket be fixedly connected with is provided with in ring groove, on wireway lower end, cover has chuck, chuck is fixedly connected with baffle plate bottom surface, the bore dia of diameter of chuck and tank filler adapts, the outer rim of described chuck is evenly distributed in clamping arm, the bottom surface of chuck is evenly distributed in jump ring arc along limit place, clamping arm and jump ring arc alternative arrangement, described clamping arm upper surface is arcwall face.
Further improve technique scheme, the central guiding pore of described wireway is blind hole, and blind hole aperture is positioned at wireway upper end, and the upper end of wireway and lower end outside surface are equipped with the gas port communicated with blind hole; This kind of structure avoids external air source and enters direct impact to fuel level after fuel tank, can prevent gas from entering fuel liquid inside and be sucked by fuel sucking pipe, decrease disturbing factor unnecessary in testing process.
Beneficial effect: 1. form ring groove between baffle plate outer edge surface and groove wall, is provided with the sealing gasket be fixedly connected with in ring groove; So both optimize the structure of this device, decrease technique, and improve the sealing of sealing gasket leakproof fuel cell oil filler.2. clamping arm upper surface is arcwall face, and this arcwall face structure effectively can protect detected member; Clamping arm upper surface directly contacts with tank filler arc-shaped step bottom surface, and structural compression during by rotating, passes to rubber blanket by pressure; The semicircle backing stop structure of arcwall face in tank filler better by property, can not cause weighing wounded to backing stop structure; In addition, during rotation arc-shaped step and arcwall face contact area less, the wearing and tearing caused during clamping are fewer.3. the side of jump ring arc and the arc-shaped step side in tank filler are that face contacts with face, and jump ring arc is circumference uniform distribution, are the clamping degree in order to strengthen jump ring arc and tank filler like this.4. this device volume is little, quality light, good seal performance, simple to operation; Can efficient, quick, high-qualityly be connected with tank filler.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is cartridge structure schematic diagram in the utility model.
Fig. 3 is chuck structure schematic diagram in the utility model.
Fig. 4 is fuel tank filler opening structure schematic diagram.
Fig. 5 is the utility model using state front view.
Fig. 6 is the utility model using state vertical view.
Embodiment
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of fuel system air tightness test sampler, comprise deck 1, the outer rim of deck 1 is arranged with boosting-rod 2, one end of boosting-rod 2 is threaded with the threaded hole on deck 1, deck 1 is rotated by boosting-rod 2, the bottom surface of deck 1 is provided with the groove that can hold fuel tank oiling end, the aperture of groove and fuel tank refuel holds external diameter to adapt, the center pit communicated with groove is provided with in deck 1, wireway 3 is provided with in center pit, wireway 3 upper end exposes to outside deck 1, the central guiding pore of wireway 3 is blind hole, blind hole aperture is positioned at wireway 3 upper end, the upper end of wireway 3 and lower end outside surface are equipped with symmetrical gas port 4, gas port 4 communicates with blind hole, wherein blind hole aperture place is provided with tensimeter 5, two gas port 4 places of wireway 3 upper end are equipped with valve switch 6, valve switch 6 other end is connected with sound suppressor 7, on wireway 3 lower end, cover has baffle plate 8, gas port on baffle plate 8 not shutoff wireway 3 lower end, wireway 3 lower end is fixed in groove by the baffle plate 8 on it and screw, ring groove 9 is formed between baffle plate 8 outer edge surface and groove wall, the sealing gasket 10 of clamping is provided with in ring groove 9, on wireway 3 lower end, cover has chuck 11, and chuck 11 is fixedly connected with baffle plate 8 bottom surface by screw, and the bore dia of chuck 11 diameter and tank filler adapts, the outer rim of described chuck 11 is evenly distributed in clamping arm 12, namely the outer rim place of chuck 11 is outward extended with clamping arm 12, clamping arm 12 upper surface is arcwall face, the bottom surface of chuck 11 is evenly distributed in jump ring arc 13 along limit place, clamping arm 12 and jump ring arc 13 alternative arrangement, chuck 11, clamping arm 12 and jump ring arc 13 three be integral type structure, wherein the jump ring arc 13 of circumference uniform distribution and tank filler snap-fit.
Tensimeter in fuel system air tightness test sampler is connected with pressure detecting system, two gas port places of wireway upper end are equipped with valve switch, the valve switch other end is connected with sound suppressor, one of them valve switch is purge valve, another valve switch is connected with air pressure automatic control system by sound suppressor and pipeline, and pressure detecting system connects and the connection of air pressure automatic control system is connected with complex control system jointly.
Pressure detecting system, this systemic effect is the atmospheric pressure value change detecting, monitor whole test gas circuit, for systematic analysis provides reliable data resource, is convenient to monitoring, analyzes and process further.Jointly form primarily of pressure transducer (proportioning valve) and the modular converter that matches thereof.Pressure transducer accepts pressure signal, and pressure signal is converted into electric signal and feeds back to complex control system by modular converter.
Air pressure automatic control system, it is primarily of electric proportional control valve and signal conversion module composition.Modular converter accepts the electric signal of complex control system output and is translated into air pressure control signal, and electric proportional control valve exports different detection air pressure according to the signal of conversion module.
Complex control system, this system is primarily of equipment compositions such as computer control system and relevant Control card, displays.This system is responsible for controlling the operation of whole testing process and is monitored detection case, comprises the on-off switch controlling test macro, the size detecting atmospheric pressure value according to technological requirement setting, the change of surveillance pressure, has detected release etc.By this system, operating personnel only need to follow according to the relevant parameter of technological requirement input, and system is monitored just individual test process automatically and made treatment and analysis.
As shown in Figure 4, Oiltank structure: comprise oil box, oil box is provided with tank filler tube 14, the oil filler wall of tank filler tube is evenly distributed in arc-shaped step 15 and semicircle retaining projection 16, arc-shaped step 15 and semicircle retaining projection 16 alternative arrangement, wherein the bottom surface of arc-shaped step is inclined-plane.
As shown in Figure 5 and Figure 6, during detection, get the fuel system air tightness test sampler assembled, insert in oil filler after its underpart jump ring arc is alignd with fuel tank filler.Press down this device, sealing gasket and oil filler end face are fitted, and jump ring arc can be in the position concordant with oil filler arc step, and namely the side of jump ring arc and the arc-shaped step side in tank filler are that face contacts with face.Rotate boosting-rod, the arc of this device bottom can move along the arc-shaped step in fuel tank filler; Clamping arm simultaneously on chuck coordinates with the bottom bevel on arc-shaped step, and the angle of chuck rotation is larger, sealing gasket and oil filler end clearance less, sealing gasket is compacted, and whole system seals up.After this device is clamped on oil filler, is arranged in air pressure automatic control system by complex control system and detect air pressure size, then control the break-make of associated solenoid valve in gas circuit, make detection gas enter in fuel system device by air pressure automatic control system; Whether pressure detecting system can meet the demands by pressure in automatic checkout system, and detected value is fed back to complex control system.Operating personnel are judged by the conclusion (whether qualified) provided in complex control system.After detection completes, control purge valve row pressure, then take off fuel system air tightness test sampler.
This device carries out centralized and unified control and management to whole signal piping, tested system, and simple to operation, efficiency is high, effectively can stop the economic loss because fuel system poor sealing performance causes.
Do not elaborate in literary composition part, is technology well known in the art.
Claims (2)
1. a fuel system air tightness test sampler, comprise deck, the outer rim of deck is arranged with boosting-rod, the bottom surface of deck is provided with the groove that can hold fuel tank oiling end, wireway is provided with in deck center pit, wireway upper end exposes to outside deck, wireway outer surface is provided with multiple gas port, it is characterized in that: wireway lower end is fixed in groove by the baffle plate on it, ring groove is formed between baffle plate outer edge surface and groove wall, the sealing gasket be fixedly connected with is provided with in ring groove, on wireway lower end, cover has chuck, chuck is fixedly connected with baffle plate bottom surface, the bore dia of diameter of chuck and tank filler adapts, the outer rim of described chuck is evenly distributed in clamping arm, the bottom surface of chuck is evenly distributed in jump ring arc along limit place, clamping arm and jump ring arc alternative arrangement, described clamping arm upper surface is arcwall face.
2. a kind of fuel system air tightness test sampler according to claim 1, it is characterized in that: the central guiding pore of described wireway is blind hole, blind hole aperture is positioned at wireway upper end, and the upper end of wireway and lower end outside surface are equipped with the gas port communicated with blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274952.2U CN204594638U (en) | 2015-04-30 | 2015-04-30 | A kind of fuel system air tightness test sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274952.2U CN204594638U (en) | 2015-04-30 | 2015-04-30 | A kind of fuel system air tightness test sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204594638U true CN204594638U (en) | 2015-08-26 |
Family
ID=53930783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520274952.2U Expired - Fee Related CN204594638U (en) | 2015-04-30 | 2015-04-30 | A kind of fuel system air tightness test sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204594638U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258883A (en) * | 2015-11-18 | 2016-01-20 | 江西洪都航空工业集团有限责任公司 | Universal auxiliary oil tank pressurization measuring device |
| CN112304776A (en) * | 2020-11-24 | 2021-02-02 | 重庆双五汽车零部件有限公司 | Testing device for static pressure test of oil tank chuck |
-
2015
- 2015-04-30 CN CN201520274952.2U patent/CN204594638U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258883A (en) * | 2015-11-18 | 2016-01-20 | 江西洪都航空工业集团有限责任公司 | Universal auxiliary oil tank pressurization measuring device |
| CN112304776A (en) * | 2020-11-24 | 2021-02-02 | 重庆双五汽车零部件有限公司 | Testing device for static pressure test of oil tank chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |