CN2835973Y - High hydraulic pressure tester - Google Patents
High hydraulic pressure tester Download PDFInfo
- Publication number
- CN2835973Y CN2835973Y CN 200520141876 CN200520141876U CN2835973Y CN 2835973 Y CN2835973 Y CN 2835973Y CN 200520141876 CN200520141876 CN 200520141876 CN 200520141876 U CN200520141876 U CN 200520141876U CN 2835973 Y CN2835973 Y CN 2835973Y
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- China
- Prior art keywords
- tensimeter
- liquid
- connection block
- pressure
- screw rod
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- Expired - Lifetime
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Abstract
The utility model discloses a high hydraulic pressure checking instrument, which comprises a liquid reservoir, a hydraulic pump connected with the liquid reservoir, a connecting seat for a first pressure meter, a pressure cutoff valve, a connecting seat for a second pressure meter, a liquid pressure regulator, and a pressure relief valve, wherein one end of the pressure cutoff valve is connected with the hydraulic pump by a pipe passage, and the other end is connected with the connecting seat for a first pressure meter; the connecting seat for a second pressure meter is connected with the connecting seat for a first pressure meter by the pipe passage, and the liquid pressure regulator is connected to the connecting seat for a second pressure meter; the pressure relief valve is connected with the connecting seat for a second pressure meter by the pipe passage. Because the utility model uses a compression mode of directly pulling and pressing a piston rod in a piston cylinder to extract liquid by a compression rod, the operation time of extracting liquid at one time is shorter, and even if the number of times of repeatedly extracting liquid is larger, compared with a traditional pressure device, the utility model also saves plenty of time.
Description
Technical field
The utility model relates to the pressure checking field of instrument and meter, particularly relates to a kind of fluid pressure tester that is applicable to high pressure.
Background technology
Employed tensimeter in fields such as commercial production, pressure survey in use for some time, all will carry out verification to it, to determine whether this tensimeter is accurate.The traditional liquid pressure testers that the verification tensimeter is used, mostly use a liquid to make press pump, the one end connects liquid memory, the other end connects the pressure gauge stand, make press pump by liquid and extract liquid in the liquid memory, compressed liquid produces pressure then, offers whole pressure checking system, and it mostly is that the straight-line displacement campaign of adopting screw mechanism to form sealing-plug comes compressed liquid to produce pressure that present liquid is made press pump.In addition, also need be in the liquid memory exit and inflow point of pressure checking system respectively establish a valve, when extracting liquid, the valve of closing presure check system inflow point, open the valve in liquid memory exit, rotate screw mechanism and drive the operation that liquid is extracted in the sealing-plug straight-line displacement, when when the pressure checking system applies liquid, the valve in closing liquid reservoir exit, the valve of opening pressure check system inflow point, rotate screw mechanism and drive the sealing-plug straight-line displacement, liquid is released into the pressure checking system, and applies the generation preload pressure.It is longer that the pre-press pump of traditional liquid, the helical motion during operation make the sealing-plug single extract time of liquid, and if liquid requirement when many, back and forth the number of times that extracts is many, causes the T.T. of extracting liquid longer.
In addition, the regulator in traditional fluid pressure tester also directly adopts above-mentioned liquid to make press pump, utilizes its screw mechanism to form the straight-line displacement of sealing-plug, reaches the purpose of regulating fluid pressure.Yet, if when sealing-plug and screw rod rotate simultaneously, when producing normal direction friction force, will inevitably produce tangent friction force, and tangent friction force and circumferential force friction easily cause the wearing and tearing of packoff, be unfavorable for realizing the high-pressure adjusting.If when a sealing-plug does not rotate simultaneously with screw rod, sealing-plug is connected with the sphere that screw rod adopts, and easily causes the spherical wearing and tearing that connect, and the wearing and tearing of the metal fillings aggravation packoff of wearing and tearing are unfavorable for the sealing to highly pressurised liquid.
In addition, traditional liquid memory does not filter measure, if in a single day greasy dirt or impurity infiltrate tester, will the contaminated liquid actuating medium, and the blockage pressure tester makes it cisco unity malfunction.
The utility model content
The purpose of this utility model provides a kind of simple in structure, easy and simple to handle, fluid pressure tester of being applicable to high pressure.
For achieving the above object, the utility model is taked technical scheme: a kind of s tester, and it includes: a liquid memory is provided with a flow export; One liquid pressure pump, it includes a feed liquor retaining valve, a fluid retaining valve, a piston rod that is provided with and a depression bar that is connected with this piston rod in a piston cylinder, and this feed liquor retaining valve is connected with the flow export of described liquid memory; One first tensimeter Connection Block, it is provided with a tensimeter jointing; One pressure stop valve, the one end is connected with the fluid retaining valve of described liquid pressure pump by pipeline, and its other end is connected with the first tensimeter Connection Block by pipeline; One second tensimeter Connection Block, it is provided with a tensimeter jointing, and this second tensimeter Connection Block is connected with the described first tensimeter Connection Block by pipeline; One liquid pressure regulator, it is connected on the described second tensimeter Connection Block; One blowdown valve, it is connected with the described second power table Connection Block by pipeline.
In the above-mentioned s tester, described liquid pressure pump specifically includes: a housing, and it is provided with inlet opening, a fluid hole and a turn of tidal stream hole, and described inlet opening, fluid hole and turn of tidal stream hole communicate with each other; One feed liquor retaining valve, it is arranged on the inlet opening place of described housing, and described feed liquor retaining valve is provided with an inlet; One fluid retaining valve, it is arranged on the fluid hole place of described housing, and described fluid retaining valve is provided with a liquid outlet; One piston cylinder, it is connected the place, turn of tidal stream hole of described housing; One piston rod, it is arranged in the described piston cylinder, and the rear portion of described piston rod is provided with a storage tank; One depression bar, what its front end rotated is connected on the described housing, and described depression bar is provided with a slide bar, and described slide bar is arranged in the described storage tank.
In the above-mentioned s tester, described liquid pressure regulator specifically includes: a hydraulic cylinder, be cylindric, and its inside center is disposed with a pod apertures and a piston cylinder from left to right; One piston rod, it is contained in the described piston cylinder, and the outer wall of piston rod is close to the inwall of piston cylinder; One sleeve is cylindric, its inner hollow, and this sleeve is connected the right side of described hydraulic cylinder; One screw rod, it passes the right-hand member of described sleeve and is arranged in the sleeve, and the left end of this screw rod is connected with the right-hand member of described piston rod; The cylindrical of described screw rod is provided with external thread, and the interior circle of described sleeve right-hand member and screw rod junction is provided with internal thread; One handle, its connection is arranged on the right-hand member of described screw rod.
In the above-mentioned s tester, described liquid memory also is provided with a liquid return hole; One end of described blowdown valve, it is connected with the second tensimeter Connection Block by pipeline, the other end of described blowdown valve, it is connected with the liquid return hole of described liquid memory by pipeline.
In the above-mentioned s tester, set up one the 3rd tensimeter Connection Block on the pipeline between described second tensimeter Connection Block and the blowdown valve, the 3rd tensimeter Connection Block is provided with a tensimeter jointing.
The utility model is owing to take above design, it has the following advantages: 1, the utility model is owing to adopt the pressuring method of the piston rod extraction liquid in the direct tension and compression piston cylinder of depression bar, this just makes that the running time of single extraction liquid is shorter, even when back and forth the number of times that extracts is many, still will save many times than traditional pressue device.2, the utility model is answered the liquid pressure regulator, can realize the meticulous pressure of pressure checking is regulated, and makes the result of verification very accurate.3, the utility model can not infiltrate in the instrument greasy dirt or impurity by the setting of filtrator, guarantees normally carrying out of verification.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of liquid pressure pump in the utility model.
Fig. 3 is the A-A cut-open view among Fig. 2.
Fig. 4 is the structural representation of liquid pressure regulator in the utility model.
Embodiment
As shown in Figure 1, be a kind of s tester provided by the utility model, it includes:
One liquid memory 1 is provided with a flow export 11;
One liquid pressure pump 2, it includes a piston rod 24 and a depression bar 25 that is connected with this piston rod 24 of a feed liquor retaining valve 21, a fluid retaining valve 22, setting in a piston cylinder 23, and this feed liquor retaining valve 21 is connected with the flow export 11 of liquid memory 1;
One first tensimeter Connection Block 3, it is provided with a tensimeter jointing 31;
One pressure stop valve 4, the one end is connected with the fluid retaining valve 22 of liquid pressure pump 2 by pipeline 5, and its other end is connected with the first tensimeter Connection Block 3 by pipeline 5;
One second tensimeter Connection Block 6, it is provided with a tensimeter jointing 61, and this second tensimeter Connection Block 6 is connected with the first tensimeter Connection Block 3 by pipeline 5;
One liquid pressure regulator 7, it is connected on the second tensimeter Connection Block 6;
One blowdown valve 8, it is by the pipeline 5 and the second tensimeter Connection Block 6.
One housing 26, it is provided with inlet opening 261, a fluid hole 262 and a turn of tidal stream hole 263, and inlet opening 261, fluid hole 262 and turn of tidal stream hole 263 communicate with each other;
One feed liquor retaining valve 21, it is arranged on inlet opening 261 places of housing 26, and feed liquor retaining valve 21 is provided with an inlet 211;
One fluid retaining valve 22, it is arranged on fluid hole 262 places of housing 26, and fluid retaining valve 22 is provided with a liquid outlet 221;
One piston cylinder 23, it is connected 263 places, turn of tidal stream hole of housing 26;
One piston rod 24, it is arranged in the piston cylinder 23, and the rear portion of piston rod 24 is provided with a storage tank 241;
One depression bar 25, what its front end rotated is connected on the housing 26, and depression bar 25 is provided with a slide bar 251, and slide bar 251 is arranged in the storage tank 241.
One hydraulic cylinder 71 is cylindric, and its inside center is disposed with a pod apertures 711 and a piston cylinder 712 from left to right;
One piston rod 72, it is contained in the piston cylinder 712, and the outer wall of piston rod 72 is close to the inwall of piston cylinder 712;
One sleeve 73 is cylindric, its inner hollow, and this sleeve 73 is connected with the right side of hydraulic cylinder 71;
One screw rod 74, it passes the right-hand member of sleeve 73 and is arranged in the sleeve 73, and the left end of this screw rod 74 is connected with the right-hand member of piston rod 72; The cylindrical of screw rod 74 is provided with external thread 741, and the interior circle of sleeve 73 right-hand members and screw rod 74 junctions is provided with internal thread 731, by the engagement of external thread 741 and internal thread 731, finishes being connected of screw rod 74 and sleeve 73;
One handle 75, its connection is arranged on the right-hand member of screw rod 74.
In the foregoing description pressure stop valve 4 and blowdown valve 8, all belong to the category of prior art, it can directly obtain from market, does not do too much giving unnecessary details at this.
The utility model when in use, at first close blowdown valve 8, open pressure stop valve 4, the tensimeter of tensimeter to be measured and standard is placed on first, second tensimeter Connection Block 3,6, then, the operator grips on the rear portion of depression bar 25 and draws, depression bar 25 is that rotate in the center of circle with the tie point of itself and housing 26 just, and slide bar 251 is that rotate in the center of circle with the tie point of depression bar 25 and housing 26 along with depression bar 25 together also, and moves on when rotating; Because slide bar 251 is arranged in the storage tank 241, therefore slide bar 251 drives storage tanks 241 and moves on together in the process of moving on it, storage tank 241 drives piston rod 24 again and moves on together, because piston rod about 24 is limited the position, so it is only with along piston cylinder 23 upper and lower displacements; After moving on the piston rod 24, because feed liquor retaining valve 21 just can make liquid pass through on the feed liquor direction, and fluid retaining valve 22 just can make liquid pass through on the direction of fluid, like this, the liquid in the liquid memory 1 flow in the piston cylinder 23 by feed liquor retaining valve 21, inlet opening 261 and turn of tidal stream hole 263 successively; The operator descends moulded rod 25 again, according to above-mentioned identical principle, piston rod 24 moves down, because feed liquor retaining valve 21 just can make liquid pass through on the feed liquor direction, and fluid retaining valve 22 just can make liquid pass through on the direction of fluid, like this, liquid in the piston cylinder 23 is successively by behind turn of tidal stream hole 263, fluid hole 262 and the fluid retaining valve 22, flowing into need provide in the check of the fluid pressure loop, if the flowing fluid ratio that needs in the loop more for a long time, then draw on repeatedly, the aforesaid operations of moulded rod 25 down, through till the required pressure that provides.
When liquid is enough in the loop, then can closing presure stop valve 4, regulate liquid pressure regulator 7, the handle 75 of forward rotation liquid pressure regulator 7,75 on handle drives screw rod 74 and rotates, since between screw rod 74 and the sleeve 73 by being threaded, so screw rod 74 when rotating, can produce to left dislocation, piston rod 72 along with screw rod 74 to left, at this moment, volume in the piston cylinder 712 reduces, and liquid is compressed, thereby can improve the fluid pressure in the whole pressure circuit; When backward rotation handle 75,75 on handle drives screw rod 74 and rotates, since between screw rod 74 and the gland 73 by being threaded, so screw rod 74 can produce displacement to the right in rotation, piston rod 72 along with screw rod 74 to right translation, at this moment, the volumes in the piston cylinder 712 increase, liquid no longer is compressed, thereby reduces the fluid pressure in the whole pressure circuit.
Through the above, just can be by traditional method of calibration, according to the manometric reading of standard tensimeter to be measured has been carried out verification, supercharging or decompression can realize by regulating liquid pressure regulator 7.After verification is finished, open blowdown valve 8, pressure release is got final product.
In addition, the utility model is for can be for two tensimeters to be measured of while verification, setting up one the 3rd tensimeter Connection Block, 9, the three tensimeter Connection Blocks 9 on the pipeline 5 between the second tensimeter Connection Block 6 and the blowdown valve 8 is provided with a tensimeter jointing 91 especially.By such setting, just can two tensimeters to be measured of a verification, the method for its verification, with consistent in the foregoing description, and if think the more testing pressure table of a verification, then corresponding pressure boost table Connection Block gets final product.
In addition, in the above embodiments, in order to save employed liquid pressure medium in pressure checking, liquid memory 1 is provided with a liquid return hole (figure does not show) especially, so embodiment can also be improved to: an end of blowdown valve 8 is connected with the second tensimeter Connection Block 6; The other end of blowdown valve 8 is connected with the liquid return hole of liquid memory 1 by pipeline 5, and the liquid pressure medium that uses after the verification just can be back in the liquid memory 1 like this, has not only saved resource, has more protected environment.In addition, flow export 11 places of liquid memory 1 of the present utility model can also be provided with a filtrator (figure does not show), by the setting of filtrator, greasy dirt or impurity can not infiltrated in the instrument, guarantee normally carrying out of verification.
Claims (10)
1, a kind of s tester is characterized in that it includes:
One liquid memory is provided with a flow export;
One liquid pressure pump, it includes a feed liquor retaining valve, a fluid retaining valve, a piston rod that is provided with and a depression bar that is connected with this piston rod in a piston cylinder, and this feed liquor retaining valve is connected with the flow export of described liquid memory;
One first tensimeter Connection Block, it is provided with a tensimeter jointing;
One pressure stop valve, the one end is connected with the fluid retaining valve of described liquid pressure pump by pipeline, and its other end is connected with the first tensimeter Connection Block by pipeline;
One second tensimeter Connection Block, it is provided with a tensimeter jointing, and this second tensimeter Connection Block is connected with the described first tensimeter Connection Block by pipeline;
One liquid pressure regulator, it is connected on the described second tensimeter Connection Block;
One blowdown valve, it is connected with the described second power table Connection Block by pipeline.
2, s tester according to claim 1 is characterized in that, described liquid pressure pump specifically includes:
One housing, it is provided with inlet opening, a fluid hole and a turn of tidal stream hole, and described inlet opening, fluid hole and turn of tidal stream hole communicate with each other;
One feed liquor retaining valve, it is arranged on the inlet opening place of described housing, and described feed liquor retaining valve is provided with an inlet;
One fluid retaining valve, it is arranged on the fluid hole place of described housing, and described fluid retaining valve is provided with a liquid outlet;
One piston cylinder, it is connected the place, turn of tidal stream hole of described housing;
One piston rod, it is arranged in the described piston cylinder, and the rear portion of described piston rod is provided with a storage tank;
One depression bar, what its front end rotated is connected on the described housing, and described depression bar is provided with a slide bar, and described slide bar is arranged in the described storage tank.
3, s tester according to claim 1 is characterized in that, described liquid pressure regulator specifically includes:
One hydraulic cylinder is cylindric, and its inside center is disposed with a pod apertures and a piston cylinder from left to right;
One piston rod, it is contained in the described piston cylinder, and the outer wall of piston rod is close to the inwall of piston cylinder;
One sleeve is cylindric, its inner hollow, and this sleeve is connected the right side of described hydraulic cylinder;
One screw rod, it passes the right-hand member of described sleeve and is arranged in the sleeve, and the left end of this screw rod is connected with the right-hand member of described piston rod; The cylindrical of described screw rod is provided with external thread, and the interior circle of described sleeve right-hand member and screw rod junction is provided with internal thread;
One handle, its connection is arranged on the right-hand member of described screw rod.
4, s tester according to claim 2 is characterized in that, described liquid pressure regulator specifically includes:
One hydraulic cylinder is cylindric, and its inside center is disposed with a pod apertures and a piston cylinder from left to right;
One piston rod, it is contained in the described piston cylinder, and the outer wall of piston rod is close to the inwall of piston cylinder;
One sleeve is cylindric, its inner hollow, and this sleeve is connected the right side of described hydraulic cylinder;
One screw rod, it passes the right-hand member of described sleeve and is arranged in the sleeve, and the left end of this screw rod is connected with the right-hand member of described piston rod; The cylindrical of described screw rod is provided with external thread, and the interior circle of described sleeve right-hand member and screw rod junction is provided with internal thread;
One handle, its connection is arranged on the right-hand member of described screw rod.
5, according to claim 1 or 2 or 3 or 4 described s testers, it is characterized in that: described liquid memory also is provided with a liquid return hole; One end of described blowdown valve, it is connected with the described second tensimeter Connection Block by pipeline, the other end of described blowdown valve, it is connected with the liquid return hole of described liquid memory by pipeline.
6, according to claim 1 or 2 or 3 or 4 described s testers, it is characterized in that: set up one the 3rd tensimeter Connection Block on the pipeline between described second tensimeter Connection Block and the blowdown valve, the 3rd tensimeter Connection Block is provided with a tensimeter jointing.
7, s tester according to claim 5, it is characterized in that: set up one the 3rd tensimeter Connection Block on the pipeline between described second tensimeter Connection Block and the blowdown valve, the 3rd tensimeter Connection Block is provided with a tensimeter jointing.
8, according to claim 1 or 2 or 3 or 4 or 7 described s testers, it is characterized in that: the flow export place of described liquid memory is provided with filtrator.
9, s tester according to claim 5 is characterized in that: the flow export place of described liquid memory is provided with filtrator.
10, s tester according to claim 6 is characterized in that: the flow export place of described liquid memory is provided with filtrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520141876 CN2835973Y (en) | 2005-11-24 | 2005-11-24 | High hydraulic pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520141876 CN2835973Y (en) | 2005-11-24 | 2005-11-24 | High hydraulic pressure tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2835973Y true CN2835973Y (en) | 2006-11-08 |
Family
ID=37300626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520141876 Expired - Lifetime CN2835973Y (en) | 2005-11-24 | 2005-11-24 | High hydraulic pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2835973Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403360A (en) * | 2015-07-15 | 2016-03-16 | 北京康斯特仪表科技股份有限公司 | Portable liquid pressure calibrator |
-
2005
- 2005-11-24 CN CN 200520141876 patent/CN2835973Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403360A (en) * | 2015-07-15 | 2016-03-16 | 北京康斯特仪表科技股份有限公司 | Portable liquid pressure calibrator |
| CN105403360B (en) * | 2015-07-15 | 2018-08-17 | 北京康斯特仪表科技股份有限公司 | Portable liquid pressure checker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING CONST INSTRUMENTS TECHNOLOGY INC. Free format text: FORMER NAME: BEIJING CONST INSTRUMENTS TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100085, D, block 05A, block 28, information road, Beijing, Haidian District Patentee after: Beijing ConST Instruments Technology Inc. Address before: 100085, Beijing, Haidian District on the road No. 2, 1, international pioneer park, building 7 Patentee before: Beijing CONST Instruments Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061108 |
|
| EXPY | Termination of patent right or utility model |