CN2318628Y - Buffer for pressure gage - Google Patents
Buffer for pressure gage Download PDFInfo
- Publication number
- CN2318628Y CN2318628Y CN 98200099 CN98200099U CN2318628Y CN 2318628 Y CN2318628 Y CN 2318628Y CN 98200099 CN98200099 CN 98200099 CN 98200099 U CN98200099 U CN 98200099U CN 2318628 Y CN2318628 Y CN 2318628Y
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- CN
- China
- Prior art keywords
- pressure
- damper
- hole
- valve core
- buffer
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- 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
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Abstract
The utility model discloses a buffer for pressure gages, belonging to the field of hydraulic technique. The buffer for a pressure gage is mainly composed of a casing and a valve core. A hole is arranged on the casing, and the outer surface of the valve core is provided with a spiral groove; the valve core is arranged in the hole of the casing, the outer surface of the valve core is closely matched with the hole, and a spiral channel is formed by the spiral groove on the valve core and the wall of the hole. The buffer for pressure gages can be arranged on the oil inlet pipeline of a pressure gage, so that effect of pulse impact oil pressures on the pressure gage can be effectively alleviated, and the pressure gage can be avoided from being damaged. The buffer has various modes of installation and manufacture, and can satisfy the requirements of different working environment.
Description
The utility model discloses a kind of pressure ga(u)ge damper, belong to the hydraulic technique field.
In hydraulic system, set up and put the pressure in a certain pipeline in the gauge measurement hydraulic system.Generally speaking, tensimeter directly communicates with pipeline in the hydraulic system by pressure meter switch.When hydraulic work system, the oil pressure in the hydraulic system often changes, and amplitude of variation is very big sometimes, during as pump start, or reversal valve when work, all can cause several MPas to change to the pressure of tens MPas, this oil pressure acute variation often makes the tensimeter that is installed in the hydraulic system damage.Capillary buffer commonly used at present, the kapillary difficulty of processing is big, and used capillary pipe length is longer, and buffering effect is bad, and it is many to consume copper material.
The purpose of this utility model is a kind of pressure ga(u)ge damper of design, the damage that causes to tensimeter when reducing the oil pressure acute variation.
The designed pressure ga(u)ge damper of the utility model mainly is made up of housing and spool, have a hole on the housing, valve core outer surface has helicla flute, and spool is packed in the hole of housing, valve core outer surface and hole closely cooperate, and helicla flute on the spool and hole wall form helical duct.
The sectional area of helical duct is 0.1～0.3mm
2, the length of helical duct is 100～400mm.
The helicla flute both sides have chamfering.
The housing of pressure ga(u)ge damper can with tensimeter or integrated valve body, the tensimeter connection seat is made one.
Pressure ga(u)ge damper has silk screen.
The designed pressure ga(u)ge damper of the utility model has following advantage:
1. the helicla flute on the spool can accurately be processed according to the size of buffering needs, thus the good buffer effect of impact damper, reliable operation.
2. spool, housing handling ease are easy for installation.
3. simple in structure, not fragile.
4. can be integral with tensimeter, tensimeter connection seat, pile-up valve system, adapt to the different operating environment requirement.
5. can before tensimeter, use this impact damper separately, pressure meter switch is not set.
Fig. 1 is a kind of structural representation of pressure ga(u)ge damper.
Fig. 2 is the structural representation of another kind of pressure ga(u)ge damper.
Fig. 3 is the structural representation of the third pressure ga(u)ge damper.
Fig. 4 is the structural representation of the 4th kind of pressure ga(u)ge damper.
Below in conjunction with drawings and Examples the utility model is elaborated.
Embodiment 1
Fig. 1 is a kind of structural representation of pressure ga(u)ge damper.
Pressure ga(u)ge damper mainly is made up of housing 4 and spool 1, and a circular hole is arranged on the housing 4, has helicla flute on the spool 1, and spool 1 is packed in the hole of housing 4, and spool 1 closely cooperates with the hole, helicla flute and hole surface formation helical duct, and its sectional area is 0.1mm
2, helicla flute length is 100mm; Collar 2 and silk screen 3 also are housed on pressure ga(u)ge damper.
On the two ends cylindrical of pressure ga(u)ge damper connecting thread is arranged, during work, with screw thread pressure ga(u)ge damper is connected on the manometric pipeline of hydraulic system, can make to enter manometric oil shock power and slow down, the protection tensimeter does not damage.
Fig. 2 is the structural representation of another kind of pressure ga(u)ge damper.
The structure of the pressure ga(u)ge damper of present embodiment is substantially the same manner as Example 1, and difference one is that the housing 5 of pressure ga(u)ge damper is made the tensimeter Connection Block, and the 2nd, the helical duct sectional area is 0.2mm
2, helical duct length is 170mm.
The structure of present embodiment can make things convenient for manometric installation, and all the other advantages are identical with embodiment 1.
Fig. 3 is the structural representation of the third pressure ga(u)ge damper.
The structure of the pressure ga(u)ge damper of present embodiment and embodiment's 1 is basic identical, and difference one is that pressure ga(u)ge damper housing 6 is made one with tensimeter, and the 2nd, the helical duct sectional area is 0.25mm
2, helical duct length is 260mm.
Tensimeter and impact damper are made as one in the present embodiment, and be easy to install and use, and all the other advantages are identical with embodiment 1.
Fig. 4 is the structural representation of the 4th kind of pressure ga(u)ge damper.
The structure of the pressure ga(u)ge damper of present embodiment and embodiment's 1 is basic identical, and difference one is that pressure ga(u)ge damper housing 7 is integral with the pile-up valve system, and the 2nd, the helical duct sectional area is 0.3mm
2, helical duct length is 400mm.
Tensimeter and impact damper are installed in the integrated valve body in the present embodiment, can make the pile-up valve function many, and the integrated level height is easy to use, and all the other advantages are identical with embodiment 1.
Claims (5)
1. a pressure ga(u)ge damper is characterized in that: mainly be made up of housing and spool, have a hole on the housing, valve core outer surface has helicla flute, spool is packed in the hole of housing, and valve core outer surface and hole closely cooperate, and helicla flute on the spool and hole wall form helical duct.
2. pressure ga(u)ge damper according to claim 1 is characterized in that: the sectional area of helical duct is 0.1～0.3mm
2, the length of helical duct is 100～400mm.
3. pressure ga(u)ge damper according to claim 1 is characterized in that: the helicla flute both sides have chamfering.
4. pressure ga(u)ge damper according to claim 1 is characterized in that: the housing of pressure ga(u)ge damper can be made one with tensimeter or integrated valve body, tensimeter connection seat.
5. pressure ga(u)ge damper according to claim 1, it is characterized in that: pressure ga(u)ge damper has silk screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98200099 CN2318628Y (en) | 1998-01-14 | 1998-01-14 | Buffer for pressure gage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98200099 CN2318628Y (en) | 1998-01-14 | 1998-01-14 | Buffer for pressure gage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318628Y true CN2318628Y (en) | 1999-05-12 |
Family
ID=33957691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98200099 Expired - Fee Related CN2318628Y (en) | 1998-01-14 | 1998-01-14 | Buffer for pressure gage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318628Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121486A (en) * | 2011-02-25 | 2011-07-13 | 广东工业大学 | Energy-saving high-speed switch valve for hydraulic transmission |
| CN107024319A (en) * | 2017-05-19 | 2017-08-08 | 青岛华青自动化仪表有限公司 | A kind of pressure ga(u)ge damper |
-
1998
- 1998-01-14 CN CN 98200099 patent/CN2318628Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121486A (en) * | 2011-02-25 | 2011-07-13 | 广东工业大学 | Energy-saving high-speed switch valve for hydraulic transmission |
| CN102121486B (en) * | 2011-02-25 | 2013-04-10 | 广东工业大学 | Energy-saving high-speed switch valve for hydraulic transmission |
| CN107024319A (en) * | 2017-05-19 | 2017-08-08 | 青岛华青自动化仪表有限公司 | A kind of pressure ga(u)ge damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |