CN205781116U - Check valve is used in hydraulic oil pump - Google Patents
Check valve is used in hydraulic oil pump Download PDFInfo
- Publication number
- CN205781116U CN205781116U CN201620469002.XU CN201620469002U CN205781116U CN 205781116 U CN205781116 U CN 205781116U CN 201620469002 U CN201620469002 U CN 201620469002U CN 205781116 U CN205781116 U CN 205781116U
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- valve
- drainage screen
- spool
- valve body
- spring
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Abstract
nullThis utility model belongs to Hydraulic Elements，Check valve is used particularly in a kind of hydraulic oil pump，The excircle of valve body (1) is respectively equipped with outside sealing screw thread (1 2) and seal groove (1 4)，The inner chamber of valve body (1) is respectively equipped with inner sealing screw thread (1 3) and jump-ring slot (1 1)，The inner sealing screw thread (1 3) of valve body (1) lower end connects a valve gap (2)，Difference insert drainage screen one (6) and drainage screen two (8) in the endoporus of valve gap (2) bottom，Lower end one spring (5) of suit of spool (4)，The lower end of spring (5) is fitted on the lower shoulder of spool (4)，The upper end of spring (5) is fitted on the lower surface of flow guiding disc (3)，The interior one-way valve structures of hydraulic oil pump is simple，Volume is little，Stability in use can be good，Open highly sensitive，Install、Convenient disassembly，It is easy to maintenance.
Description
Technical field
This utility model belongs to Hydraulic Elements, uses check valve particularly in a kind of hydraulic oil pump.
Background technology
Inside a lot of hydraulic oil pumps, there is hydraulically-controlled one-way valve, and be to prevent fluid from flowing backwards and control the unlatching pressure of hydraulic oil pump.And along with people's improving constantly the requirement of hydraulic oil pump, the technology of hydraulically-controlled one-way valve requires to receive publicity the most more and more, general hydraulically-controlled one-way valve is all to process an inclined plane only promote ball valve or cone valve to contact with its inclined plane with compression spring in the position of the oil-out of hydraulic oil pump and reach the requirement sealed, and the position of the oil-out that the location of compression spring is proximate to oil pump processes a jump-ring slot, put into jump ring afterwards and be finally reached spacing purpose with its fixation pressure spring, but the check valve of this structure also exists processing, install, the problems such as dismounting inconvenience.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, it is provided that a kind of simple in construction, opens pressure stability, installs, uses check valve in the hydraulic oil pump of convenient disassembly.
nullThis utility model solves technical problem and the technical scheme is that the interior check valve of hydraulic oil pump includes valve body、Valve gap、Spool、Drainage screen one、Drainage screen two、O RunddichtringO、Jump ring，It is characterized in that the excircle of valve body is respectively equipped with outside sealing screw thread and seal groove，The inner chamber of valve body is respectively equipped with inner sealing screw thread and jump-ring slot，The threaded valve gap of inner sealing of valve body lower end，Difference insert drainage screen one and drainage screen two in endoporus bottom valve gap，Valve gap inner chamber bottom surface above drainage screen one and drainage screen two is provided with valve bonnet seal face，Seal between valve bonnet seal face and the lower surface of spool，Lower end one spring of suit of spool，The lower end of spring is fitted on the lower shoulder of spool，The upper end of spring is fitted on the lower surface of flow guiding disc，Flow guiding disc is sleeved on spool and spacing with jump ring，Jump ring is installed in jump-ring slot，The seal groove of valve body is built with O RunddichtringO.
The beneficial effects of the utility model are: simple by one-way valve structures in hydraulic oil pump, volume is little, and stability in use can be good, opens highly sensitive, installation, convenient disassembly, it is simple to maintenance.
Accompanying drawing explanation
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the structure sectional view of the interior check valve of hydraulic oil pump.
In figure, 1-valve body；1-1-jump-ring slot；1-2-is outside seals screw thread；1-3-inner sealing screw thread；1-4-seal groove；2-valve gap；2-1-valve bonnet seal face；3-flow guiding disc；4-spool；5-spring；6-drainage screen one；7-jump ring；8-drainage screen two；9-O RunddichtringO.
Detailed description of the invention
Embodiment, referring to the drawings 1, the excircle of valve body 1 is respectively equipped with outside sealing screw thread 1-2 and seal groove 1-4, and the inner chamber of valve body 1 is respectively equipped with inner sealing screw thread 1-3 and jump-ring slot 1-1.The threaded valve gap 2 of inner sealing screw thread 1-3 of valve body 1 lower end, difference insert drainage screen 1 and drainage screen 28 in endoporus bottom valve gap 2, valve gap 2 inner chamber bottom surface above drainage screen 1 and filtration 28 is provided with valve bonnet seal face 2-1, seals between the lower surface of valve bonnet seal face 2-1 and spool 4.Lower end one spring 5 of suit of spool 4, the lower end of spring 5 is contained on the lower shoulder of spool 4, the upper end of spring 5 is fitted on the lower surface of flow guiding disc 3, flow guiding disc 3 is sleeved on the upper end of spool 4 spacing with jump ring 7, jump ring 7 is installed in jump-ring slot 1-1, the seal groove 1-4 of valve body 1 is built with O RunddichtringO 9, the sealing between valve body 1 and oil pump oil-out inwall.
The operation principle of the interior check valve of hydraulic oil pump is: when the pressure produced when hydraulic oil pump works reaches the pressure designed by check valve, fluid can promote spool 4 separate with valve bonnet seal face 2-1 and upwards carry out axially-movable by drainage screen 28 with drainage screen 1, and flowed out by the tap hole of flow guiding disc 3, final outflow valve body 1.
Claims (1)
- null1. use check valve in a hydraulic oil pump，Including valve body (1)、Valve gap (2)、Spool (4)、Drainage screen one (6)、Drainage screen two (8)、O RunddichtringO (9)、Jump ring (7)，It is characterized in that the excircle of valve body (1) is respectively equipped with outside sealing screw thread (1-2) and seal groove (1-4)，The inner chamber of valve body (1) is respectively equipped with inner sealing screw thread (1-3) and jump-ring slot (1-1)，The inner sealing screw thread (1-3) of valve body (1) lower end connects a valve gap (2)，Difference insert drainage screen one (6) and drainage screen two (8) in the endoporus of valve gap (2) bottom，Valve gap (2) the inner chamber bottom surface of drainage screen one (6) and drainage screen two (8) top is provided with valve bonnet seal face (2-1)，Seal between the lower surface of valve bonnet seal face (2-1) and spool (4)，Lower end one spring (5) of suit of spool (4)，The lower end of spring (5) is fitted on the lower shoulder of spool (4)，The upper end of spring (5) is fitted on the lower surface of flow guiding disc (3)，It is upper and spacing with jump ring (7) that flow guiding disc (3) is sleeved on spool (4)，Jump ring (7) is installed in jump-ring slot (1-1)，The seal groove (1-4) of valve body (1) is built with O RunddichtringO (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469002.XU CN205781116U (en) | 2016-05-23 | 2016-05-23 | Check valve is used in hydraulic oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469002.XU CN205781116U (en) | 2016-05-23 | 2016-05-23 | Check valve is used in hydraulic oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781116U true CN205781116U (en) | 2016-12-07 |
Family
ID=58114888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620469002.XU Active CN205781116U (en) | 2016-05-23 | 2016-05-23 | Check valve is used in hydraulic oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738521A (en) * | 2022-04-06 | 2022-07-12 | 安徽士必达液压器材有限公司 | Check valve component and filtering mechanism thereof |
-
2016
- 2016-05-23 CN CN201620469002.XU patent/CN205781116U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114738521A (en) * | 2022-04-06 | 2022-07-12 | 安徽士必达液压器材有限公司 | Check valve component and filtering mechanism thereof |
| CN114738521B (en) * | 2022-04-06 | 2024-03-26 | 安徽士必达液压器材有限公司 | One-way valve assembly and filtering mechanism thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |