CN202789813U - Plug-in mounting type mass flow one-way valve - Google Patents
Plug-in mounting type mass flow one-way valve Download PDFInfo
- Publication number
- CN202789813U CN202789813U CN 201220499658 CN201220499658U CN202789813U CN 202789813 U CN202789813 U CN 202789813U CN 201220499658 CN201220499658 CN 201220499658 CN 201220499658 U CN201220499658 U CN 201220499658U CN 202789813 U CN202789813 U CN 202789813U
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- CN
- China
- Prior art keywords
- plug
- mounting
- cover plate
- bolt
- flow
- Prior art date
- 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 plug-in mounting type mass flow one-way valve which is installed inside a hydraulic manifold block of return oil of a hydraulic system through upper threads (11) of a plug-in mounting valve body (9). The plug-in mounting type mass flow one-way valve comprises the plug-in mounting valve body (9) connected with the hydraulic manifold block, wherein the plug-in mounting valve body (9) is provided with a cover plate (6), a spring (3) and a support sleeve (4), and the cover plate (6), the spring (3) and the support sleeve (4) are strung together through a bolt (5). Opening pressure is regulated and adjusted by a locknut (2). A cotter pin (1) is installed on the end portion of the bolt (5) for preventing falling off of the locknut (2). The plug-in mounting type mass flow one-way valve has the advantages of being novel and practical in structure (number of connection pipelines is reduced due to the plug-in mounting method), small is size, convenient to install, pressure drop of flow is small, strong in oil transporting capacity, and capable of keeping stability of the flow in a cooler and effectively preventing the cooler from cracking due to big flow.
Description
Technical field
The utility model relates to the cooling system in the construction machinery hydraulic system, the one-way valve that specifically uses in a kind of hydraulic system.
Background technique
Hydraulic fluid flow rate in the construction machinery hydraulic system depends on pump delivery, engine revolution and oil cylinder two ends Area Ratio, (1000 rev/mins～2500 rev/mins) and oil cylinder two ends area ratio are larger greatly because engine revolution changes and changes with operation, so changes in flow rate is very large.And the cooler requirement is requirement stability of flow and general flow configuration less (considering Cost reduction and mounting point).At present, cooling system in the construction machinery hydraulic system adopts traditional one-way valve to shunt, because the pressure drop of traditional one-way valve flow is large and profile is huge, is not easy to install, and causes by the flowed fluctuation of cooler greatlyr, the cooler explosion therefore often occurs; And because traditional one-way valve profile is huge, be not easy to install and take over.
Summary of the invention
The purpose of this utility model is exactly the defective that exists for above-mentioned existing one-way valve, and a kind of novel structure, the flow pressure drop of exploitation are little, the large flow check valve of the plug-in type that oil filling capacity is strong.
The technical solution adopted in the utility model is as follows:
The large flow check valve of a kind of plug-in type, it is characterized in that it comprises the plug-in mounting valve body, plug-in mounting valve body one side is provided with filler opening, opposite side is provided with oil outlet, on the described oil outlet cover plate is housed, and bolt is installed on the cover plate, be set with spring and supporting sleeve on the bolt, described spring one end pushes up on the cover board, and the other end is positioned at supporting sleeve inside, and the lock nut of adjustable springs pressure also is installed on bolt.
The circumferential side wall of described plug-in mounting valve body is provided with screw thread and is used for the O type circle of sealing.
Described cover plate one side cover is on oil outlet, and opposite side is pushed down by spring.
The end of described bolt also is provided with the cotter pin that prevents that lock nut from coming off.
The beneficial effects of the utility model have:
Novel structure practical (adopt plug-in type, reduced connecting pipeline), profile is little, and is easy for installation, and the flow pressure drop is little, and oil filling capacity is strong, can keep the steady of cooler flow, can effectively prevent cooler explosion owing to flow is large.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is further described below in conjunction with accompanying drawing:
As shown in Figure 1, it comprises plug-in mounting valve body 9 the utility model, and plug-in mounting valve body 9 one sides are provided with filler opening 10, and opposite side is provided with oil outlet 7.Cover plate 6 is housed on the oil outlet 7, and cover plate 6 one side covers are on oil outlet 7, and opposite side is pushed down by spring 3.The center of cover plate 6 is equipped with bolt 5, pocketed springs 3 and supporting sleeve 4 on the bolt 5.Spring 3 one ends withstand on the cover plate 6, and the other end is positioned at supporting sleeve 4 inside, can make the location comparison of spring 3 stable.The lock nut 2 of adjustable springs 3 pressure also is installed on bolt 6, is used for fixing and the adjusting cracking pressure.The circumferential side wall of plug-in mounting valve body 9 is provided with screw thread 11 and is used for sealing O type circle 8.Also be provided with the cotter pin 1 that prevents that lock nut 2 from coming off in the end of bolt 5.
The utility model is that to utilize screw thread 11 on the plug-in mounting valve body 9 to be installed on the integrated valve block of hydraulic system oil return inner, and in parallel with oil return cooler, in the hydraulic work system process, when oil return flow less (less than the rated flow of cooler), this closed check valve, oil return fluid passes through (cooling) from cooler, when oil return flow large (greater than the rated flow of cooler), cover plate 6 is backed down, and one-way valve is opened, and an oil return fluid part is passed through (cooling) from cooler, unnecessary fluid is from the filler opening 10 of this one-way valve, oil outlet 7, cover plate 6 passes through, make the stability of flow by cooler, reduce the pressure of cooler, prevent the cooler explosion.
The utility model can also be connected with cooler, uses as back pressure valve, improves the reliability of system.Other undeclared part that the utility model relates to is same as the prior art.
Claims (4)
1. large flow check valve of plug-in type, it is characterized in that it comprises plug-in mounting valve body (9), plug-in mounting valve body (9) one sides are provided with filler opening (10), opposite side is provided with oil outlet (7), cover plate (6) is housed on the described oil outlet (7), bolt (5) is installed on the cover plate (6), be set with spring (3) and supporting sleeve (4) on the bolt (5), described spring (3) one ends withstand on the cover plate (6), the other end is positioned at supporting sleeve (4) inside, and the lock nut (2) of adjustable springs (3) pressure also is installed on bolt (6).
2. the large flow check valve of plug-in type according to claim 1, the circumferential side wall that it is characterized in that described plug-in mounting valve body (9) are provided with screw thread (11) and are used for the O type circle (8) of sealing.
3. the large flow check valve of plug-in type according to claim 1 is characterized in that described cover plate (6) one side covers on oil outlet (7), and opposite side is pushed down by spring (3).
4. the large flow check valve of plug-in type according to claim 1 is characterized in that the end of described bolt (5) also is provided with the cotter pin (1) that prevents that lock nut (2) from coming off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220499658 CN202789813U (en) | 2012-09-28 | 2012-09-28 | Plug-in mounting type mass flow one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220499658 CN202789813U (en) | 2012-09-28 | 2012-09-28 | Plug-in mounting type mass flow one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789813U true CN202789813U (en) | 2013-03-13 |
Family
ID=47817079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220499658 Expired - Fee Related CN202789813U (en) | 2012-09-28 | 2012-09-28 | Plug-in mounting type mass flow one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829033A (en) * | 2012-09-28 | 2012-12-19 | 南京讯联液压件有限公司 | Plug-in type large-flow check valve |
-
2012
- 2012-09-28 CN CN 201220499658 patent/CN202789813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829033A (en) * | 2012-09-28 | 2012-12-19 | 南京讯联液压件有限公司 | Plug-in type large-flow check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |