CN212458815U - Tightness detection device - Google Patents
Tightness detection device Download PDFInfo
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- CN212458815U CN212458815U CN202021551882.8U CN202021551882U CN212458815U CN 212458815 U CN212458815 U CN 212458815U CN 202021551882 U CN202021551882 U CN 202021551882U CN 212458815 U CN212458815 U CN 212458815U
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Abstract
The utility model provides a leakproofness detection device belongs to the leakproofness and detects technical field, has solved prior art and has gone up valve plate and the problem that valve plate leakproofness detected the difficulty down. The utility model discloses a frame is equipped with in the frame and is used for the measuring seat that meets with the valve plate under awaiting measuring, measures the seat top and is equipped with the push down device that is used for going up the valve plate to await measuring and carries out exerting pressure downwards, offers the gas pipeline who is used for external and await measuring lower valve plate intercommunication in the measuring seat, measures the inside roof pressure device that can pass that still is equipped with of seat the gas pipeline upwards exerts pressure to the valve plate that awaits measuring. The utility model detects whether the first easy-to-leak point is sealed or not by the pressing device matching with the gas pipeline and the barometer, and detects whether the second easy-to-leak point is sealed or not by the pressing device matching with the gas pipeline and the barometer; the valve plate is prevented from being damaged due to excessive extrusion through the first buffer mechanism and the second buffer mechanism; the connecting port matched with the top of the upper valve plate in shape is arranged, so that the valve plate is more stable in stress and high in detection accuracy.
Description
Technical Field
The utility model belongs to the technical field of the leakproofness detects, particularly, relate to a leakproofness detection device.
Background
The gate valve is one of the most commonly used shut-off valves, and is mainly used for connecting or shutting off a medium in a pipeline and is not used for regulating the flow of the medium. The applied pressure, temperature and diameter range is large, especially applied to medium and large diameter pipelines. The wedge type valve plate can be divided into a wedge type valve plate and a parallel type valve plate according to different structures of the valve plate, and the wedge type valve plate can be divided into a rigid single valve plate, an elastic single valve plate, a double valve plate and the like.
The leakproofness of valve plate is very important, and there are two easy leak sources that the leakproofness is relatively poor in current last valve plate and lower valve plate, needs a leakproofness detection device that can detect easy leak source of last valve plate and lower valve plate urgent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a convenient to use's leakproofness detection device to the above-mentioned problem that exists among the prior art.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a leakproofness detection device, includes the frame, the frame on be equipped with and be used for with the measuring seat that the valve plate meets under awaiting measuring, measuring seat top be equipped with and be used for going up the valve plate to await measuring and carry out the device that pushes down that exerts pressure downwards, the measuring seat in seted up and be used for the external world and await measuring the gas pipeline of valve plate intercommunication down, measuring seat inside still be equipped with and pass the gas pipeline carries out the roof pressure device that upwards exerts pressure to the valve plate that awaits measuring.
The measuring seat is used for measuring the sealing performance between the upper valve plate and the lower valve plate, the gas pipeline can introduce external gas to the joint of the lower valve plate and the measuring seat, a barometer can be used for testing the change of air pressure near the inlet of the gas pipeline to match the measuring seat to judge the sealing performance, the upper valve plate is pressed downwards through the pressing device, so that the upper valve plate is tightly attached to the lower valve plate, if the barometer displays that the air pressure is reduced, a first easy leakage point of the lower valve plate is proved to be unsealed, the gas can be leaked, and if the air pressure is displayed to be unchanged, the sealing performance of the lower valve plate is proved to be strong; when the upper valve plate and the lower valve plate are in a close-fitting state, the top pressing device is used for pressing the lower valve plate upwards, so that the lower valve plate and the valve core in the upper valve plate move upwards, whether the air pressure of the air pressure gauge is reduced or not is observed again, and whether the second easy-to-leak point is sealed or not is judged.
In the above-mentioned tightness detection device, the gas pipeline includes an air inlet pipe located at the side of the measuring base for communicating with the outside to introduce gas, and a connecting pipe located in the measuring base for connecting with the air inlet pipe and the lower valve plate to be measured respectively, and the jacking device can pass through the connecting pipe to apply pressure to the lower valve plate to be measured. The air inlet pipe is used for introducing outside air, and the connecting pipe is used for leading the introduced air to the lower valve plate.
In the sealing performance detecting device, the pressing device includes a pressing driving mechanism located at the top of the frame and a first buffer mechanism located below the pressing driving mechanism.
The downward pressing driving mechanism is used for driving the first buffer mechanism to move downwards to apply pressure to the upper valve plate, and the first buffer mechanism is used for preventing the upper valve plate from being damaged due to excessive extrusion.
In the sealing performance detecting apparatus, the pressing driving mechanism includes a first cylinder seat located at the top of the frame, a first cylinder located on the first cylinder seat, and a pressing rod located below the first cylinder and fixedly connected to the first cylinder.
The first cylinder seat is used for installing a first cylinder, the first cylinder is used for driving the pressing rod to move downwards, and the pressing rod is used for driving the first buffer mechanism to move downwards.
In the sealing performance detecting device, the first buffer mechanism includes a first spring seat located below the push-down driving mechanism and an upper spring located in the first spring seat and used for preventing the upper valve plate to be detected from being excessively squeezed and damaged.
The first spring seat is used for installing the upper spring, and the upper spring plays a role in buffering and can prevent the upper valve plate from being damaged due to excessive extrusion.
In the sealing performance detection device, a connection port for connecting with the upper valve plate to be detected is formed at the bottom of the first spring seat, and the section of the connection port is in an inverted T shape.
Through setting up the connector that matches with last valve plate top shape, can be so that the atress is more stable, hugs closely effectually, and the testing result is more accurate.
In the above sealing performance detecting device, the pressing device includes a pressing driving mechanism located in the measuring seat, a second buffering mechanism located on the pressing driving mechanism, a lower push rod located above the second buffering mechanism, and a pressing rod located above the lower push rod and fixedly connected to the lower push rod.
The jacking driving mechanism is used for driving the second buffer mechanism to move upwards, the second buffer mechanism can drive the lower push rod to move upwards, the lower push rod can drive the jacking rod to apply pressure to the lower valve plate, and the second buffer mechanism is used for preventing the lower valve plate from being damaged due to excessive extrusion.
In the above sealing performance detecting apparatus, the pressing driving mechanism includes a second cylinder block located in the measuring block, and a second cylinder located on the second cylinder block.
The second cylinder block is used for mounting a second cylinder, and the second cylinder is used for driving the second buffer mechanism to move upwards.
In the sealing performance detecting device, the second buffer mechanism includes a second spring seat located on the pressing and driving mechanism and a lower spring located on the second spring seat to prevent damage due to over-pressing.
The second spring holder is used for installing the lower spring, and the lower spring plays the effect of buffering, can prevent that lower valve plate from being damaged by excessive extrusion.
In the sealing performance detection device, a sealing ring for sealing is arranged at the top of the measuring seat.
Compared with the prior art, the utility model detects whether the first easy-to-leak point is sealed by the pressing device matching with the gas pipeline and the barometer, and detects whether the second easy-to-leak point is sealed by the pressing device matching with the gas pipeline and the barometer; the valve plate is prevented from being damaged due to excessive extrusion by arranging the first buffer mechanism and the second buffer mechanism; through setting up the connector that matches with last valve plate top shape, can be so that the atress is more stable, hugs closely effectually, and the testing result is more accurate.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the enlarged structure of the upper valve plate and the lower valve plate for detecting the present invention;
FIG. 3 is a view showing a state in which the sealing property between the lower valve plate and the valve body is detected;
FIG. 4 is a state diagram when the sealing property between the upper valve plate and the valve body is detected;
in the figure, 1, a frame; 2. a measuring seat; 3. a pressing device; 31. a push-down drive mechanism; 311. a first cylinder block; 312. a first cylinder; 313. a hold down bar; 32. a first buffer mechanism; 321. a first spring seat; 322. an upper spring; 323. a connecting port; 4. a gas conduit; 41. an air inlet pipe; 42. a connecting pipe; 5. a jacking device; 51. a jacking driving mechanism; 511. a second cylinder block; 512. a second cylinder; 52. a second buffer mechanism; 521. a second spring seat; 522. a lower spring; 53. a lower push rod; 54. a top pressure rod; 6. a seal ring; 7. an upper valve plate; 8. a lower valve plate; 9. a first easy leak point; 10. a second easy leak point; 11. an air outlet channel; 12. a valve core.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, the utility model discloses a frame 1, frame 1 on be equipped with and be used for with the measuring seat 2 that awaits measuring lower valve plate 8 meets, measuring seat 2 top be equipped with and be used for going up valve plate 7 to await measuring and carry out the device 3 that pushes down of exerting pressure downwards, measuring seat 2 in seted up and be used for the external world and await measuring the gas piping 4 of valve plate 8 intercommunication down, measuring seat 2 inside still be equipped with and can pass gas piping 4 carries out the roof pressure device 5 of exerting pressure upwards to the valve plate that awaits measuring.
The measuring seat 2 is used for measuring the sealing performance between the upper valve plate 7 and the lower valve plate 8, the gas pipeline 4 can introduce outside gas to the joint of the lower valve plate 8 and the measuring seat 2, a barometer can be used for testing the change of the air pressure near the inlet of the gas pipeline 4 to match the measuring seat 2 to judge the sealing performance, the upper valve plate 7 is pressed downwards through the pressing device 3, so that the upper valve plate 7 is tightly attached to the lower valve plate 8, if the barometer displays that the air pressure is reduced, the first easy-to-leak point 9 of the lower valve plate 8 is proved to be unsealed, the gas can be leaked, and if the displayed air pressure is unchanged, the sealing performance of the lower valve plate 8 is proved to be strong; when the upper valve plate 7 and the lower valve plate 8 are in a close-fitting state, the jacking device 5 is used for upwards pressing the lower valve plate 8, so that the lower valve plate 8 and the valve core 12 in the upper valve plate 7 move upwards, whether the air pressure of the air pressure gauge is reduced is observed again, and whether the second easy-to-leak point 10 is sealed is judged.
The gas pipeline 4 comprises a gas inlet pipe 41 which is positioned at the side part of the measuring base 2 and used for communicating with the outside to introduce gas, and a connecting pipe 42 which is positioned in the measuring base 2 and used for being respectively connected with the gas inlet pipe 41 and the lower valve plate 8 to be measured, and the jacking device 5 can penetrate through the connecting pipe 42 to apply pressure to the lower valve plate 8 to be measured. The intake pipe 41 is used to introduce outside air, and the connection pipe 42 is used to pass the introduced air to the lower valve plate 8.
The pressing device 3 comprises a pressing driving mechanism 31 positioned at the top of the frame 1 and a first buffer mechanism 32 positioned below the pressing driving mechanism 31. The downward pressing driving mechanism 31 is used for driving the first buffer mechanism 32 to move downward to press the upper valve plate 7, and the first buffer mechanism 32 is used for preventing the upper valve plate 7 from being damaged due to over-pressing.
The lower pressing driving mechanism 31 comprises a first cylinder 312 seat 311 located at the top of the frame 1, a first cylinder 312 located on the first cylinder seat 311, and a pressing rod 313 located below the first cylinder 312 and fixedly connected therewith. The first cylinder seat 311 is used for installing a first cylinder 312, the first cylinder 312 is used for driving the pressing rod 313 to move downwards, and the pressing rod 313 is used for driving the first buffer mechanism 32 to move downwards.
The first buffer mechanism 32 includes a first spring seat 321 located below the downward pressing driving mechanism 31 and an upper spring 322 located in the first spring seat 321 for preventing the upper valve plate 7 to be tested from being damaged by excessive pressing.
The first spring seat 321 is used for mounting the upper spring 322, and the upper spring 322 plays a role of buffering and can prevent the upper valve plate 7 from being damaged due to over-extrusion. The bottom of the first spring seat 321 is provided with a connecting port 323 used for connecting with the upper valve plate 7 to be tested, and the section of the connecting port 323 is in an inverted T shape.
Through setting up the connector 323 that matches with upper valve plate 7 top shape, can be so that the atress is more stable, hugs closely effectually, and the testing result is more accurate.
The jacking device 5 comprises a jacking driving mechanism 51 positioned in the measuring seat 2, a second buffer mechanism 52 positioned on the jacking driving mechanism 51, a lower push rod 53 positioned above the second buffer mechanism 52, and a jacking rod 54 positioned above the lower push rod 53 and fixedly connected with the lower push rod.
The jacking driving mechanism 51 is used for driving the second buffer mechanism 52 to move upwards, the second buffer mechanism 52 moves upwards to drive the lower push rod 53 to move upwards, the lower push rod 53 moves upwards to drive the jacking rod 54 to press the lower valve plate 8, and the second buffer mechanism 52 is used for preventing the lower valve plate 8 from being damaged due to excessive extrusion. The jacking driving mechanism 51 comprises a second cylinder 512 seat 511 located in the measuring seat 2, and a second cylinder 512 located on the second cylinder 511.
The second cylinder block 511 is used for mounting the second cylinder 512, and the second cylinder 512 is used for driving the second buffer mechanism 52 to move upwards. The second buffer mechanism 52 comprises a second spring seat 521 positioned on the top pressure driving mechanism 51 and a lower spring 522 positioned on the second spring seat 521 and used for preventing damage caused by over-pressing. The second spring seat 521 is used for mounting the lower spring 522, and the lower spring 522 plays a role of buffering, so that the lower valve plate 8 can be prevented from being excessively pressed and damaged.
And a sealing ring 6 for sealing is arranged at the top of the measuring seat 2.
The utility model discloses the theory of operation: preparing a barometer, placing the barometer near an air inlet pipe 41, placing an upper valve plate 7 and a lower valve plate 8 on a detection seat, firstly detecting the tightness of a first leak-prone point 9, starting a first air cylinder 312, driving a pressing rod 313 connected with the first air cylinder 312 to move downwards, driving a first spring seat 321 connected with the pressing rod 313 to move downwards by the downward movement of the pressing rod 313, sleeving the top of the upper valve plate 7 by an upper spring 322 on the first spring seat 321, contacting a connecting port 323 with the upper valve plate 7, the gradual close contact can be realized through the buffering of the upper spring 322, after the close contact, whether the air pressure near the air inlet pipe 41 changes or not is observed, if the first easy leakage point 9 is not sealed, the gas entering from the gas inlet pipe 41 will flow out from the first easy-to-leak point 9 upwards from the connecting pipe 42, which causes the gas pressure near the gas inlet pipe 41 to be reduced, and if the gas pressure is not changed, the first easy-to-leak point 9 is sealed; the second cylinder 512 is started, the second cylinder 512 drives the second spring seat 521 connected with the second cylinder to move upwards, the lower spring 522 on the second spring seat 521 drives the lower push rod 53 to move upwards stably, the lower push rod 53 moves upwards to drive the top pressure rod 54 connected with the lower push rod to push the valve core 12 to move upwards, whether the air pressure near the air inlet pipe 41 changes or not is observed, if the second easy-leakage point 10 is not sealed, air can flow out of the air outlet channel 11, so that the air pressure near the air inlet pipe 41 is reduced, and if the air pressure is not changed, the second easy-leakage point 10 is sealed.
The utility model detects whether the first easy leak point 9 is sealed or not by the pressing device 3 matching with the gas pipeline 4 and the barometer, and detects whether the second easy leak point 10 is sealed or not by the pressing device 5 matching with the gas pipeline 4 and the barometer; the valve plate is prevented from being damaged by being excessively pressed by providing the first damper mechanism 32 and the second damper mechanism 52; through setting up the connector 323 that matches with upper valve plate 7 top shape, can be so that the atress is more stable, hugs closely effectually, and the testing result is more accurate.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A leakproofness detecting device, includes frame (1), its characterized in that: frame (1) on be equipped with and be used for with the measuring seat (2) that valve plate (8) meet under awaiting measuring, measuring seat (2) top be equipped with and be used for going up valve plate (7) to await measuring and carry out pushing down device (3) of exerting pressure downwards, measuring seat (2) in seted up gas pipeline (4) that are used for the external world and await measuring valve plate (8) intercommunication down, measuring seat (2) inside still be equipped with and pass gas pipeline (4) carry out top pressure device (5) of upwards exerting pressure to the valve plate that awaits measuring.
2. A leak detection apparatus according to claim 1, wherein: gas pipeline (4) including being located measure seat (2) lateral part and be used for communicateing intake pipe (41) that the external world introduced gas, be located measure seat (2) in be used for with intake pipe (41) and the connecting pipe (42) of being connected respectively of valve plate (8) down that awaits measuring, roof pressure device (5) can pass connecting pipe (42) are pressed pressure to valve plate (8) down that awaits measuring.
3. A leak detection apparatus according to claim 1 or 2, wherein: the pressing device (3) comprises a pressing driving mechanism (31) positioned at the top of the rack (1) and a first buffer mechanism (32) positioned below the pressing driving mechanism (31).
4. A leak detection apparatus according to claim 3, wherein: the downward pressing driving mechanism (31) comprises a first cylinder seat (311) positioned at the top of the rack (1), a first cylinder (312) positioned on the first cylinder seat (311), and a pressing rod (313) positioned below the first cylinder (312) and fixedly connected with the first cylinder.
5. A leak detection apparatus according to claim 3, wherein: the first buffer mechanism (32) comprises a first spring seat (321) located below the pressing driving mechanism (31) and an upper spring (322) located in the first spring seat (321) and used for preventing the upper valve plate (7) to be tested from being excessively extruded and damaged.
6. A leak detection apparatus according to claim 5, wherein: the bottom of the first spring seat (321) is provided with a connecting port (323) used for being connected with the upper valve plate (7) to be tested, and the section of the connecting port (323) is in an inverted T shape.
7. A leak detection apparatus according to claim 1 or 2, wherein: the jacking device (5) comprises a jacking driving mechanism (51) positioned in the measuring seat (2), a second buffer mechanism (52) positioned on the jacking driving mechanism (51), a lower push rod (53) positioned above the second buffer mechanism (52) and a jacking rod (54) positioned above the lower push rod (53) and fixedly connected with the lower push rod.
8. A leak testing device according to claim 7, wherein: the jacking driving mechanism (51) comprises a second cylinder seat (511) positioned in the measuring seat (2) and a second cylinder (512) positioned on the second cylinder seat (511).
9. A leak testing device according to claim 7, wherein: the second buffer mechanism (52) comprises a second spring seat (521) positioned on the jacking driving mechanism (51) and a lower spring (522) positioned on the second spring seat (521) and used for preventing damage caused by over-extrusion.
10. A leak detection apparatus according to claim 1 or 2, wherein: and a sealing ring (6) for sealing is arranged at the top of the measuring seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021551882.8U CN212458815U (en) | 2020-07-30 | 2020-07-30 | Tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021551882.8U CN212458815U (en) | 2020-07-30 | 2020-07-30 | Tightness detection device |
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| Publication Number | Publication Date |
|---|---|
| CN212458815U true CN212458815U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021551882.8U Active CN212458815U (en) | 2020-07-30 | 2020-07-30 | Tightness detection device |
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| CN (1) | CN212458815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523766A (en) * | 2021-07-15 | 2021-10-22 | 浙江金麦特自动化系统有限公司 | Air gap press-fitting device for booster valve |
-
2020
- 2020-07-30 CN CN202021551882.8U patent/CN212458815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523766A (en) * | 2021-07-15 | 2021-10-22 | 浙江金麦特自动化系统有限公司 | Air gap press-fitting device for booster valve |
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