CN204649358U - Ball valve air-tight test end cover mechanism - Google Patents
Ball valve air-tight test end cover mechanism Download PDFInfo
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- CN204649358U CN204649358U CN201520371802.3U CN201520371802U CN204649358U CN 204649358 U CN204649358 U CN 204649358U CN 201520371802 U CN201520371802 U CN 201520371802U CN 204649358 U CN204649358 U CN 204649358U
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- end cover
- slide
- ball valve
- center pillar
- plate
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Abstract
The utility model discloses a kind of ball valve air-tight test end cover mechanism, when being intended to overcome ball valve air-tight test of the prior art, the deficiency of plugging structure installing/dismounting inconvenience.It comprises columniform front end end cover, center pillar, limiting plate, columniform slide, elastic seal ring, snap ring, location-plate, pushing plate, drive motor and screw rod, center pillar one end vertically connects the center of circle of front end end cover, the other end vertically connects limiting plate, the air filling and exhausting hole running through center pillar and front end end cover is provided with in center pillar, limiting plate is by some connecting link connected positioning plates, the parallel center pillar of screw rod is rotationally connected location-plate, and slide to be coaxially slidably located on center pillar and between front end end cover and limiting plate.The beneficial effects of the utility model are: (1) stretches formula end cover designs in adopting improves shutoff sealing effectiveness, ensures measuring accuracy; (2) easy installation and removal between plugging mechanism and ball valve, carries and does air-leakage test efficiency; (3) temperature sensor is provided with, when facilitating control and measuring, the temperature variation in ball valve.
Description
Technical field
The utility model relates to ball valve air tightness test field, particularly relates to a kind of plugging mechanism for ball valve air tightness test machine.
Background technology
Ball valve makes opening and closing element with the spheroid of band manhole, and spheroid rotates with valve rod, to realize the valve of switching motion.Ball valve is mainly used as cut-out, distributes and change the flow direction of medium.Before ball valve uses, require with pressure gas to be that medium carries out experiments of sealing performance.
When prior art is tested ball valve, usual employing sealing gasket or O-ring seal are placed in the outside of ball valve two ends fitting structure, join with feed arrangements such as the cylinders of air tightness test machine simultaneously and be clamped in ball valve two ends with structures such as clamping plate, thus sealing gasket or O-ring seal and ball valve two ends are formed seal, then pass into pressure gas toward ball valve inside and check its sealing property.The program has the following disadvantages: lack special ball valve plugging mechanism, and ball valve plugging operations process is complicated, and the sealing contact surface of plugging structure is end face or the outside surface of fitting structure, and structure precision is not high, causes sealing effectiveness poor; And hermetically-sealed construction dismounting also comparatively inconvenience after a test article has detected, again need to reinstall sealing gasket or seals and other component during test, be difficult to carry out high-efficiency and continuous test, and have impact on test efficiency.
Utility model content
When the utility model is to overcome ball valve air-tight test of the prior art, plugging mechanism sealing effectiveness is poor, and the deficiency of installing/dismounting inconvenience, provide and can realize quick blocking and dismounting, effectively improve a kind of ball valve air-tight test end cover mechanism of ball valve air-leakage test efficiency.
To achieve these goals, the utility model is by the following technical solutions:
A kind of ball valve air-tight test end cover mechanism of the present utility model, comprise columniform front end end cover, center pillar, limiting plate, columniform slide, elastic seal ring, snap ring, location-plate, pushing plate, drive motor and screw rod, center pillar one end vertically connects the center of circle of front end end cover, the other end vertically connects limiting plate, the air filling and exhausting hole running through limiting plate, center pillar and front end end cover is provided with in center pillar, limiting plate is by some connecting link connected positioning plates, the parallel center pillar of screw rod is rotationally connected location-plate, and drive motor to be arranged on location-plate and drive screw; Slide is coaxially slidably located on center pillar and between front end end cover and limiting plate, slide connects pushing plate by some pushing rams through limiting plate, and pushing plate is between limiting plate and location-plate, and pushing plate center is provided with the screw of engagement screws; Slide is coaxially arranged with round platform seat towards one end of front end end cover, front end end cover is provided with the cavity holding described round platform seat near a side end face of slide, snap ring is slidably located in slide side, elastic seal ring is set in round platform seat side, snap ring and front end end cover clamping elastic seal ring, be provided with the top laminated structure to top, elastic seal ring direction pressure snap ring between snap ring and slide.
The utility model is arranged on the feed arrangements such as the cylinder of air tightness test machine by location-plate.When detecting, the feed arrangement of air tightness test machine advances limiting plate, makes the structure such as center pillar and front end end cover push the fitting structure at ball valve two ends, and static slide and the center pillar of making of screw rod is synchronized with the movement simultaneously.After feeding puts in place, drive motor drive screw rotates, and pushing plate makes slide continue to advance by pushing ram, and round platform seat struts elastic seal ring from inside, makes elastic seal ring outer rim near the inwall of ball valve two ends fitting structure and front end end cover, realizes the shutoff to ball valve.Then by air filling and exhausting hole, air-leakage test test is started to inflation in ball valve.After having tested, drive motor again drive screw direction rotates withdrawal slide, and resilient seal loop-shaped is recovered and depressurization effect, and now between plugging mechanism and ball valve, friction force weakens and just can be regained by plugging mechanism easily.Thus realize Fast Installation and the dismounting of impermeability plugging structure, greatly improve the efficiency of air-tight test.And sealing station is positioned at the inwall of fitting structure, general machining precision is higher herein, ensures better sealing effectiveness.
As preferably, top laminated structure comprises the spacing ring, slide bar and the spring that arrange and arrange along slide side ring week, the parallel center pillar of described slide bar is arranged, its one end is passed spacing ring and is provided with limited block, the slide bar other end is fixedly connected with snap ring, described spring housing is located on described slide bar, and spring one end connects spacing ring other end Joining clasp.Elastic seal ring is subject to the clamping action of snap ring and front end end cover and holding position opposed front end lid is fixed, and both ensure that the sealing effectiveness between elastic seal ring and front end end cover, ejects simultaneously and come off and affect sealing property when also preventing elastic seal ring from strutting.
As preferably, elastic seal ring is set to part pyramid like configuration near a side end face of front end end cover, makes elastic seal ring inner thickness be greater than outside thickness; Along front end end cover towards the edge ring of slide one side end face week being provided with the inclined-plane coordinating elastic seal ring part pyramid like configuration.The part pyramid like configuration of elastic seal ring and the ramp structure of front end end cover, both ensure that the sealing effectiveness between elastic seal ring and front end end cover, ejects simultaneously and come off and affect sealing property when also preventing elastic seal ring from strutting.
As preferably, the diameter on round platform seat top is less than the diameter connecting slide one end, is provided with limited step along the apical margin of round platform seat side and root edge.Limited step can prevent elastic seal ring from coming off from round platform seat.
As preferably, front end end cover is provided with away from center pillar one side end face the temperature sensor that is measured cavity temperature in ball valve.When facilitating control and measuring, the temperature variation in ball valve.
The beneficial effects of the utility model are: (1) stretches formula end cover designs in adopting improves shutoff sealing effectiveness, ensures measuring accuracy; (2) easy installation and removal between end cover mechanism and ball valve, carries and does air-leakage test efficiency; (3) temperature sensor is provided with, when facilitating control and measuring, the temperature variation in ball valve.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present utility model.
Fig. 2 is the cross-sectional schematic of the utility model sealed condition.
In figure: 1 front end end cover; 11 center pillars; 12 air filling and exhausting holes; 13 cavitys; 14 temperature sensors; 15 limiting plates; 16 connecting links; 17 location-plates; 2 slides; 21 round platform seats; 22 limited steps; 23 screw rods; 24 pushing rams; 25 pushing plates; 26 spacing rings; 27 drive motor; 3 elastic seal rings; 4 snap rings; 41 slide bars; 42 springs; 43 limited blocks; 5 fitting structures; 6 feed arrangements.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, a kind of ball valve air-tight test end cover mechanism of the present utility model, comprise columniform front end end cover 1, center pillar 11, limiting plate 15, columniform slide 2, elastic seal ring 3, snap ring 4, location-plate 17, pushing plate 25, drive motor 27 and screw rod 23, center pillar 11 one end vertically connects the center of circle of front end end cover 1, the other end vertically connects limiting plate 15, be provided with in center pillar 11 and run through limiting plate 15, the air filling and exhausting hole 12 of center pillar 11 and front end end cover 1, limiting plate 15 is by some connecting link 16 connected positioning plates 17, the parallel center pillar 11 of screw rod 23 is rotationally connected location-plate 17, drive motor 27 to be arranged on location-plate 17 and drive screw 23, slide 2 to be coaxially slidably located on center pillar 11 and between front end end cover 1 and limiting plate 15, slide 2 connects pushing plate 25 by some pushing rams 24 through limiting plate 15, pushing plate 25 is between limiting plate 15 and location-plate 17, and pushing plate 25 center is provided with the screw of engagement screws 23.
Slide 2 is coaxially arranged with round platform seat 21 towards one end of front end end cover 1, front end end cover 1 is provided with the cavity 13 holding described round platform seat 21 near a side end face of slide 2, snap ring 4 is slidably located in slide 2 side, elastic seal ring 3 is set in round platform seat 21 side, snap ring 4 and front end end cover 1 clamp elastic seal ring 3, are provided with the top laminated structure to top, elastic seal ring 3 direction pressure snap ring 4 between snap ring 4 and slide 2.
Top laminated structure comprises the spacing ring 26, slide bar 41 and the spring 42 that arrange and arrange along slide 2 side ring week, the parallel center pillar 11 of described slide bar 41 is arranged, its one end is passed spacing ring 26 and is provided with limited block 43, slide bar 41 other end is fixedly connected with snap ring 4, described spring 42 is set on described slide bar 41, and spring 42 one end connects spacing ring 26 other end Joining clasp 4.Elastic seal ring 3 is subject to the clamping action of snap ring 4 and front end end cover 1 and holding position opposed front end lid 1 is fixed, and both ensure that the sealing effectiveness between elastic seal ring 3 and front end end cover 1, ejects simultaneously and come off and affect sealing property when also preventing elastic seal ring 3 from strutting.
Elastic seal ring 3 is set to part pyramid like configuration near a side end face of front end end cover 1, makes elastic seal ring 3 inner thickness be greater than outside thickness; Along front end end cover 1 towards the edge ring of slide 2 one side end face week being provided with the inclined-plane coordinating elastic seal ring 3 part pyramid like configuration.The part pyramid like configuration of elastic seal ring 3 and the ramp structure of front end end cover 1, both ensure that the sealing effectiveness between elastic seal ring 3 and front end end cover 1, ejects simultaneously and come off and affect sealing property when also preventing elastic seal ring 3 from strutting.
The diameter on round platform seat 21 top is less than the diameter connecting slide 2 one end, is provided with limited step 22 along the apical margin of round platform seat 21 side and root edge.Limited step 22 can prevent elastic seal ring 3 from coming off from round platform seat 21.
Front end end cover 1 is provided with away from center pillar 11 1 side end face the temperature sensor 14 that is measured cavity temperature in ball valve.When facilitating control and measuring, the temperature variation in ball valve.
As shown in Figure 2, the utility model is arranged on by location-plate 17 on the feed arrangements 6 such as the cylinder of air tightness test machine.Feed arrangement 6 is herein this area common technology, does not repeat them here.When detecting, the feed arrangement 6 of air tightness test machine advances limiting plate 15, makes the structure such as center pillar 11 and front end end cover 1 push the fitting structure 5 at ball valve two ends, and static slide 2 and the center pillar 11 of making of screw rod 23 is synchronized with the movement simultaneously.After feeding puts in place, drive motor 27 drive screw 23 rotates, and pushing plate 25 makes slide 2 continue to advance by pushing ram 24, and round platform seat 21 struts elastic seal ring 3 from inside, make elastic seal ring 3 outer rim near the inwall of ball valve two ends fitting structure 5 and front end end cover 1, realize the shutoff to ball valve.Then air-leakage test test is started by inflation in air filling and exhausting hole 12 pairs of ball valves.After having tested, drive motor 27 again drive screw 23 direction rotates and regains slide 2, and elastic seal ring 3 shape is recovered and depressurization effect, and now between plugging mechanism and ball valve, friction force weakens and just can be regained by plugging mechanism easily.Thus realize Fast Installation and the dismounting of impermeability plugging structure, greatly improve the efficiency of air-tight test.
Claims (5)
1. a ball valve air-tight test end cover mechanism, it is characterized in that, comprise columniform front end end cover, center pillar, limiting plate, columniform slide, elastic seal ring, snap ring, location-plate, pushing plate, drive motor and screw rod, center pillar one end vertically connects the center of circle of front end end cover, the other end vertically connects limiting plate, the air filling and exhausting hole running through limiting plate, center pillar and front end end cover is provided with in center pillar, limiting plate is by some connecting link connected positioning plates, the parallel center pillar of screw rod is rotationally connected location-plate, and drive motor to be arranged on location-plate and drive screw; Slide is coaxially slidably located on center pillar and between front end end cover and limiting plate, slide connects pushing plate by some pushing rams through limiting plate, and pushing plate is between limiting plate and location-plate, and pushing plate center is provided with the screw of engagement screws; Slide is coaxially arranged with round platform seat towards one end of front end end cover, front end end cover is provided with the cavity holding described round platform seat near a side end face of slide, snap ring is slidably located in slide side, elastic seal ring is set in round platform seat side, snap ring and front end end cover clamping elastic seal ring, be provided with the top laminated structure to top, elastic seal ring direction pressure snap ring between snap ring and slide.
2. ball valve air-tight test end cover mechanism according to claim 1, it is characterized in that, top laminated structure comprises the spacing ring, slide bar and the spring that arrange and arrange along slide side ring week, the parallel center pillar of described slide bar is arranged, its one end is passed spacing ring and is provided with limited block, the slide bar other end is fixedly connected with snap ring, and described spring housing is located on described slide bar, and spring one end connects spacing ring other end Joining clasp.
3. ball valve air-tight test end cover mechanism according to claim 1, is characterized in that, elastic seal ring is set to part pyramid like configuration near a side end face of front end end cover, makes elastic seal ring inner thickness be greater than outside thickness; Along front end end cover towards the edge ring of slide one side end face week being provided with the inclined-plane coordinating elastic seal ring part pyramid like configuration.
4. the ball valve air-tight test end cover mechanism according to claim 1 or 3, is characterized in that, the diameter on round platform seat top is less than the diameter connecting slide one end, is provided with limited step along the apical margin of round platform seat side and root edge.
5. the ball valve air-tight test end cover mechanism according to claim 1 or 2 or 3, is characterized in that, front end end cover is provided with away from center pillar one side end face the temperature sensor that is measured cavity temperature in ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371802.3U CN204649358U (en) | 2015-06-02 | 2015-06-02 | Ball valve air-tight test end cover mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371802.3U CN204649358U (en) | 2015-06-02 | 2015-06-02 | Ball valve air-tight test end cover mechanism |
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| CN204649358U true CN204649358U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520371802.3U Active CN204649358U (en) | 2015-06-02 | 2015-06-02 | Ball valve air-tight test end cover mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422905A (en) * | 2015-12-22 | 2016-03-23 | 中国计量学院 | Sealing end cover with retaining function |
| CN109029870A (en) * | 2018-08-22 | 2018-12-18 | 邹凯 | A kind of end cap of ball valve |
| CN113281033A (en) * | 2021-06-18 | 2021-08-20 | 安徽国钦智能科技有限公司 | Automatic detection device and detection method for ball valve |
-
2015
- 2015-06-02 CN CN201520371802.3U patent/CN204649358U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422905A (en) * | 2015-12-22 | 2016-03-23 | 中国计量学院 | Sealing end cover with retaining function |
| CN105422905B (en) * | 2015-12-22 | 2017-08-25 | 中国计量大学 | A kind of end cover with stopping function |
| CN109029870A (en) * | 2018-08-22 | 2018-12-18 | 邹凯 | A kind of end cap of ball valve |
| CN113281033A (en) * | 2021-06-18 | 2021-08-20 | 安徽国钦智能科技有限公司 | Automatic detection device and detection method for ball valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Patentee after: Ningbo Yuhua Industrial Co.,Ltd. Address before: 315414 No. 71, West Road, Hemudu Town, Yuyao City, Ningbo City, Zhejiang Province Patentee before: NINGBO YUHUA ELECTRIC APPLIANCE Co.,Ltd. |