CN201739597U - Multi-way valve sealing device - Google Patents
Multi-way valve sealing device Download PDFInfo
- Publication number
- CN201739597U CN201739597U CN2010202722584U CN201020272258U CN201739597U CN 201739597 U CN201739597 U CN 201739597U CN 2010202722584 U CN2010202722584 U CN 2010202722584U CN 201020272258 U CN201020272258 U CN 201020272258U CN 201739597 U CN201739597 U CN 201739597U
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- pressure area
- oil
- oil line
- pressure
- valve body
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Abstract
The utility model discloses a multi-way valve sealing device, which comprises valve bodies with high-pressure area inlet oil lines and low-pressure area return oil lines, wherein a high-pressure area seal groove is formed on the valve body corresponding to each high-pressure area inlet oil line, an inlet oil line high-pressure seal ring is arranged on the high-pressure area seal groove, a low-pressure area seal groove is formed on the valve body corresponding to each lower-pressure area return oil line, and a return oil line low-pressure seal ring is arranged on the low-pressure area seal groove. The utility model has simple and reasonable structure and easy processing, two independent seal grooves are respectively processed on the high-pressure area inlet oil line and the low-pressure area return oil line of the inlet oil and return oil of the valve body of the multi-way valve, and the inlet oil line high-pressure seal ring and the return oil line low-pressure seal ring are mounted, so that the inlet oil line and the return oil line are sealed independently and can be operated independently under the working state without oil-pouring phenomenon, at the same time, the seepage phenomenon at the junction of a plurality of valve bodies is prevented, and the working pressure of the system is ensured.
Description
Technical field
The utility model relates to the multi-way valve of using in a kind of medial and small construction machinery hydraulic system, relates in particular to the sealing configuration in the multi-way valve.
Background technique
The multi-way valve of using in the existing medial and small construction machinery hydraulic system generally all is that the valve body by a plurality of sheets joins and forms, the structure of multi-way valve as shown in Figure 1 in the prior art: have zone of high pressure oil-feed oil circuit 4 and low pressure area oil return circuit 3 on the valve body 1, boss 2 is set on valve body 1, boss 2 surface Machining are become the plane, by on boss 2, attachment hole being set, using bolt device to pass attachment hole multi-disc valve body 1 is fitted together.But, only be provided with a circular seal groove 5 on the valve body 1 of existing multi-way valve, though circular seal groove 5 is provided with seal ring, can prevent the seepage phenomenon at 1 junction plane place of valve body, yet, because the zone of high pressure oil-feed oil circuit 4 of zone of high pressure in-line and the low pressure area oil return circuit of low pressure area oil circuit 3 unified being sealed in the seal groove, when being in the working procedure under the high pressure, oil in the in-line of zone of high pressure might be gone here and there oil in the low pressure area oil circuit, cause the system pressure instability, thereby cause the instability of working state of system.
The model utility content
At above-mentioned the deficiencies in the prior art part, the purpose of this utility model is: a kind of multi-way valve is provided, its zone of high pressure in-line and low pressure area oil circuit seal separately, thereby guarantee multi-way valve following pressure stability in working order, effectively solve the problem of above-mentioned prior art existence.
To achieve these goals, the technical solution adopted in the utility model is: disclose a kind of multi-way valve seal arrangement, it comprises the valve body of band zone of high pressure oil-feed oil circuit and low pressure area oil return circuit, with the corresponding valve body of zone of high pressure oil-feed oil circuit on offer the zone of high pressure seal groove, on the seal groove of zone of high pressure, be provided with oil-feed oil circuit high-pressure seal ring, with the corresponding valve body of low pressure area oil return circuit on offer the low pressure area seal groove, be provided with oil return circuit low pressure seal circle at the low pressure area seal groove.
As preferably, valve body is provided with the boss that surface Machining becomes the plane.
Compared with prior art, the beneficial effect that this model utility is brought is: this model utility is simple in structure, rationally, be easy to processing, in advancing of multi-way valve valve body, two independent seal grooves have been processed on the zone of high pressure oil-feed oil circuit of oil return and the low pressure area oil return circuit respectively, oil-feed oil circuit high-pressure seal ring and oil return circuit low pressure seal circle are installed respectively, thereby will advance, the sealing that oil return circuit is independent, advancing under having guaranteed in working order, oil return circuit works independently, can not go here and there oily phenomenon, simultaneously, can prevent the seepage phenomenon at junction plane place between a plurality of valve bodies, guarantee the pressure stability of system works.
Description of drawings
Fig. 1 is the structural representation of multi-way valve in the prior art;
Fig. 2 is the structural representation of the utility model multi-way valve after improving.
Valve body-1; Boss-2; Low pressure area oil return circuit-3; Zone of high pressure oil-feed oil circuit-4 circular seal groove-5; Zone of high pressure seal groove-6; Low pressure area seal groove-7; Oil-feed oil circuit high-pressure seal ring-8; Oil return circuit low pressure seal circle-9.
Embodiment
Technique scheme of the present utility model and advantage thereof are not difficult to obtain to understand in depth from following selected embodiment's detailed description and accompanying drawing.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 2, as a kind of embodiment of the present utility model, this multi-way valve seal arrangement, it comprises the valve body 1 of band zone of high pressure oil-feed oil circuit 4 and low pressure area oil return circuit 3, on valve body 1, be provided with the boss 2 that surface Machining becomes the plane, boss 2 surface Machining are become the plane,, use bolt device to pass attachment hole multi-disc valve body 1 is fitted together by on boss 2, attachment hole being set.With zone of high pressure oil-feed oil circuit 4 corresponding valve bodies 1 on offer zone of high pressure seal groove 6, on zone of high pressure seal groove 6, be provided with oil-feed oil circuit high-pressure seal ring 8, with low pressure area oil return circuit 3 corresponding valve bodies 1 on offer low pressure area seal groove 7, be provided with oil return circuit low pressure seal circle 9 at low pressure area seal groove 7.
On the zone of high pressure oil-feed oil circuit 4 of the advancing of multi-way valve valve body 1, oil return and low pressure area oil return circuit 3, two independent seal grooves have been processed respectively, oil-feed oil circuit high-pressure seal ring 8 and oil return circuit low pressure seal circle 9 are installed respectively, thereby the sealing of will advance, oil return circuit is independent, advancing under having guaranteed in working order, oil return circuit work independently, can not go here and there oily phenomenon, simultaneously, can prevent the seepage phenomenon at 1 junction plane place of a plurality of valve bodies, guarantee the pressure stability of system works.
The above only is the detailed description of the utility model preferred embodiment and graphic, is not to be used for limiting the utility model, and the embodiment or the approximate construction of all similar variations of doing according to creation spirit of the present utility model all should be contained among the utility model.
Claims (2)
1. multi-way valve seal arrangement, the valve body (1) that comprises band zone of high pressure oil-feed oil circuit (4) and low pressure area oil return circuit (3), it is characterized in that: with the corresponding valve body of zone of high pressure oil-feed oil circuit (4) (1) on offer zone of high pressure seal groove (6), on zone of high pressure seal groove (6), be provided with oil-feed oil circuit high-pressure seal ring (8), with the corresponding valve body of low pressure area oil return circuit (3) (1) on offer low pressure area seal groove (7), be provided with oil return circuit low pressure seal circle (9) at low pressure area seal groove (7).
2. a kind of multi-way valve seal arrangement according to claim 1 is characterized in that: valve body (1) is provided with the boss (2) that surface Machining becomes the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202722584U CN201739597U (en) | 2010-07-27 | 2010-07-27 | Multi-way valve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202722584U CN201739597U (en) | 2010-07-27 | 2010-07-27 | Multi-way valve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739597U true CN201739597U (en) | 2011-02-09 |
Family
ID=43554872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202722584U Expired - Fee Related CN201739597U (en) | 2010-07-27 | 2010-07-27 | Multi-way valve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570223A (en) * | 2016-02-26 | 2016-05-11 | 龙工（上海）精工液压有限公司 | Sealing structure for preventing combination surfaces of chip type multi-way valves from leaking oil |
-
2010
- 2010-07-27 CN CN2010202722584U patent/CN201739597U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570223A (en) * | 2016-02-26 | 2016-05-11 | 龙工（上海）精工液压有限公司 | Sealing structure for preventing combination surfaces of chip type multi-way valves from leaking oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110727 |