CN2635305Y - Twin hand pressure valve for woodworking machinery - Google Patents
Twin hand pressure valve for woodworking machinery Download PDFInfo
- Publication number
- CN2635305Y CN2635305Y CN 03269408 CN03269408U CN2635305Y CN 2635305 Y CN2635305 Y CN 2635305Y CN 03269408 CN03269408 CN 03269408 CN 03269408 U CN03269408 U CN 03269408U CN 2635305 Y CN2635305 Y CN 2635305Y
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- China
- Prior art keywords
- spool
- oilhole
- valve
- valve pocket
- oil
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- Expired - Fee Related
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- Safety Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model provides a technical proposal of double-hand pressure valve for woodworking machinery. It is characterized in that a left and a right valve core are provided, the left valve core is in the inner cavity of the valve bush, the right valve core is in the inner cavity of the left valve core, a spring is provided between the inner cavity of the left valve core and the right valve core; an upper left oil hole is provided on the valve bush corresponding to the oil return channel of the oil cylinder, an upper central oil hole corresponding to the oil inlet channel of the oil cylinder, a lower central oil hole corresponding to the main oil inlet channel, a lower left oil hole corresponding to the main oil return channel, an upper right oil hole connected to an auxiliary upper oil return channel on the valve bush, and a lower right oil hole connected to an auxiliary lower oil return channel; a left oil hole of the left valve core upper is provided on the left valve core corresponding to the upper left oil hole of the valve bush, the upper right oil hole of the left valve core is corresponding to the upper right oil hole of the valve bush, the lower left oil hole of the left valve core is corresponding to the lower left oil hole of the valve bush, the lower right oil hole of the left valve core is corresponding to the lower central oil hole of valve bush; an upper left oil hole of the right valve core is provided on the right valve core corresponding to the left valve core upper left oil hole, the upper right oil hole of the right valve core is corresponding to the upper right oil hole of the left valve core, the lower left oil hole of the right valve core is corresponding to the lower left oil hole of the left valve core, the lower central oil hole of the right valve core is corresponding to the lower right oil hole of the left valve core, and a lower right oil hole and a core hole are also provided on the right valve core.
Description
Affiliated technical field:
The utility model relates to the part that a kind of woodworking machinery is used, especially a kind of woodworking machinery is with the hands pressed valve.
Background technology:
In the prior art, technique known is that the applicant applies for and is 02212965 No. 0 patents by the patent No. that State Intellectual Property Office is authorized, this patent disclosure a kind of control valve that adopts both hands to control the operation of wood-split machine in the woodworking machinery simultaneously, can realize both hands control effectively to wood-split machine, but this control valve is the structure that adopts two spools rotation control oil circuit to change, therefore, the operating space of joystick needs enough environment of size, so limited the application of control valve.
Summary of the invention:
The utility model is at the existing in prior technology deficiency, and provide a kind of woodworking machinery with the hands to press the technical scheme of valve, this scheme can realize with the hands voltage-controlled, does not need big operating space just can carry out both hands control to woodworking machinery, has enlarged the range of application of control valve.
This programme is realized by following technical measures: the valve pocket that mainly includes valve body and body cavity, spool is arranged in valve pocket, the oil cylinder oil inlet passage and the oil cylinder drainback passage that are connected with oil cylinder in addition in the valve body, and main oil inlet passage and main drainback passage, main oil inlet passage is connected with fuel tank by the outer oil pump of overflow valve in the valve body and valve body with main drainback passage, corresponding main oil inlet passage and main drainback passage and oil cylinder oil inlet passage and oil cylinder drainback passage have corresponding oilhole on valve pocket, the characteristics of this programme are that described spool has two of left spool and right spools, left side spool is at the valve pocket inner chamber, and can be parallel mobile in valve pocket, right spool is at the inner chamber of left spool, and can in left spool, relatively move with left spool, between left valve core cavity and right spool, there is spring to control the static position of left spool and right spool; On valve pocket corresponding oil cylinder drainback passage have left oilhole on the valve pocket, corresponding oil cylinder oil inlet passage have on the valve pocket in oilhole, corresponding main oil inlet passage have under the valve pocket in oilhole, corresponding main drainback passage valve pocket bottom left oilhole is arranged, right oilhole communicates with drainback passage on the pair on the valve pocket also having on the valve pocket, drainback passage then communicates with fuel tank on the pair, also having valve pocket bottom right oilhole to communicate with drainback passage under the pair on the valve pocket, secondary drainback passage down also communicates with fuel tank; Right oilhole on left oilhole on the left spool, the left spool, left spool bottom left oilhole and left spool bottom right oilhole are being arranged on the left spool, four oilholes, when static position, left oilhole on the corresponding valve pocket of left oilhole on the spool of a left side, right oilhole on the corresponding valve pocket of right oilhole on the spool of a left side, the corresponding valve pocket bottom left of left side spool bottom left oilhole oilhole, the down middle oilhole of the corresponding valve pocket of left spool bottom right oilhole; Oilhole and right spool bottom right oilhole on right spool, having under right oilhole on left oilhole on the right spool, the right spool, right spool bottom left oilhole, the right spool, and five oilholes are connected by right spool core hole, when static position, left oilhole on the corresponding left spool of left oilhole on the right spool, right oilhole on the corresponding left spool of right oilhole on the right spool, the corresponding left spool bottom left oilhole of right spool bottom left oilhole, the corresponding left spool bottom right oilhole of the down middle oilhole of right spool.The concrete characteristics of this programme also have, and have left spool stifled between described left spool and the valve body.There is right spool stifled between described right spool and the valve body.Also have the interior leakage of oil passage of oil leaking hole and valve body to communicate on the described left spool, the leakage of oil passage communicates with fuel tank.
The beneficial effect of this programme can be learnt according to the narration to such scheme, because spool has two of left spool and right spools in this scheme, left side spool is at the valve pocket inner chamber, and can be parallel mobile in valve pocket, right spool is at the inner chamber of left spool, and can in left spool, relatively move with left spool, between left valve core cavity and right spool, there is spring to control the static position of left spool and right spool; On valve pocket corresponding oil cylinder drainback passage have left oilhole on the valve pocket, corresponding oil cylinder oil inlet passage have on the valve pocket in oilhole, corresponding main oil inlet passage have under the valve pocket in oilhole, corresponding main drainback passage valve pocket bottom left oilhole is arranged, also having on the valve pocket right oilhole to communicate on the valve pocket and valve pocket bottom right oilhole communicates with drainback passage under the pair with drainback passage on the pair; When static position, left oilhole on the corresponding valve pocket of left oilhole on the spool of a left side, right oilhole on the corresponding valve pocket of right oilhole on the spool of a left side, the corresponding valve pocket bottom left of left side spool bottom left oilhole oilhole, the corresponding valve pocket of left side spool bottom right oilhole down in oilhole, and left oilhole on the corresponding left spool of left oilhole on the right spool, right oilhole on the corresponding left spool of right oilhole on the right spool, the corresponding left spool bottom left oilhole of right spool bottom left oilhole, the corresponding left spool bottom right oilhole of the down middle oilhole of right spool.This structure, when static position, the pressure oil that is come by oil pump passes through main oil inlet passage and the down middle oilhole of valve pocket, left side spool bottom right oilhole, the down middle oilhole of right spool enters right spool core hole, again through right spool bottom left oilhole, left side spool bottom left oilhole, valve pocket bottom left oilhole and main drainback passage flow back to fuel tank, while pressure oil is right oilhole on right spool also, right oilhole on the spool of a left side, right oilhole and the secondary drainback passage of going up flow back to fuel tank on the valve pocket, this moment in-oil cylinder pressure oil, left oilhole on oil cylinder drainback passage and valve pocket, left oilhole on the spool of a left side, left oilhole enters right spool core hole on the right spool, drainback passage and main drainback passage flow back to fuel tank on pair again, when in-oil cylinder pressure oil flows back to fuel tank, in-oil cylinder piston just will reset.When left spool and right spool are pressed into simultaneously, drainback passage, secondary drainback passage down and main drainback passage are sealed by left and right spool on oil cylinder drainback passage, the pair, pressure oil by main oil inlet passage and valve pocket down in oilhole, left spool bottom left oilhole, right spool bottom right oilhole enter right spool core hole, again on right spool on right oilhole, the left spool on left oilhole, the valve pocket in oilhole and oil cylinder oil inlet passage enter oil cylinder promotion piston mobile working.When left spool is pressed into, when right spool was in static position, oil cylinder drainback passage and oil cylinder oil inlet passage were sealed by left and right spool, and pressure oil can not pass in and out oil cylinder, and this moment, piston was motionless does not work, and pressure oil will flow back to fuel tank by drainback passage under pair; When right spool is pressed into, when left spool was in static position, same oil cylinder drainback passage and oil cylinder oil inlet passage were sealed by left and right spool, and pressure oil can not pass in and out oil cylinder, and in-oil cylinder piston is not worked, and pressure oil flows back to fuel tank through main drainback passage.So, this programme can be realized the with the hands operation of pressure control piston, has finished bimanualness and pressure controlled requirement, owing to adopt pressure control, so do not need big operating space just can carry out both hands control to woodworking machinery, this has just enlarged the range of application of control valve.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.
Description of drawings:
Fig. 1 is the part sectional structure schematic diagram of the utility model specific embodiment.
1 is valve body among the figure, and 2 is overflow valve, and 3 are the leakage of oil drainback passage, 4 is that left spool is stifled, and 5 is left spool, and 6 is spring, 7 is valve pocket, and 8 is left oilhole on the right spool, and 9 is left oilhole on the left spool, 10 is left oilhole on the valve pocket, and 11 is the oil cylinder drainback passage, and 12 is right spool bottom left oilhole, 13 is middle oilhole on the valve pocket, and 14 is middle oilhole under the right spool, and 15 is the oil cylinder oil inlet passage, 16 is the secondary drainback passage of going up, and 17 is right oilhole on the valve pocket, and 18 is right oilhole on the left spool, 19 is right oilhole on the right spool, and 20 is right spool core hole, and 21 is that right spool is stifled, 22 is right spool, and 23 is right spool bottom right oilhole, and 24 is valve pocket bottom right oilhole, 25 is secondary drainback passage down, 26 is left spool bottom right oilhole, and 27 are the down middle oilhole of valve pocket, and 28 is left spool bottom left oilhole, 29 is main oil inlet passage, 30 is valve pocket bottom left oilhole, and 31 is main drainback passage, and 32 is oil leaking hole.
The specific embodiment:
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by a specific embodiment.
By accompanying drawing as can be seen, the woodworking machinery of this programme is with the hands pressed valve, mainly include the valve pocket (7) of valve body (1) and valve body (1) inner chamber, in valve pocket (7), spool is arranged, the oil cylinder oil inlet passage (15) and the oil cylinder drainback passage (11) that are connected with oil cylinder in addition in the valve body (1), and main oil inlet passage (29) and main drainback passage (31), main oil inlet passage (29) is connected with fuel tank by overflow valve (2) in the valve body (1) and valve body (1) oil pump outward with main drainback passage (31), and corresponding main oil inlet passage (29) and main drainback passage (31) and oil cylinder oil inlet passage (15) and oil cylinder drainback passage (11) have corresponding oilhole on valve pocket (7).The described spool of this programme has (22) two of left spool (5) and right spools, left side spool (5) is at valve pocket (7) inner chamber, and can be parallel mobile in valve pocket (7), right spool (22) is at the inner chamber of left spool (5), and can in left spool (5), move with left spool (5) opposing parallel, between left spool (5) inner chamber and right spool (22), spring (6) is arranged, in order to control the static position of left spool (5) and right spool (22).Valve pocket (7) go up corresponding oil cylinder drainback passage (11) have left oilhole (10) on the valve pocket, corresponding oil cylinder oil inlet passage (15) have on the valve pocket in oilhole (13), corresponding main oil inlet passage (29) have that middle oilhole (27), corresponding main drainback passage (31) have valve pocket bottom left oilhole (30) under the valve pocket; Right oilhole (17) communicates with the secondary drainback passage (16) of going up on the last valve pocket in addition of valve pocket (7), and drainback passage on the pair (16) then communicates with fuel tank; Upward also have valve pocket bottom right oilhole (24) to communicate with drainback passage (25) under the pair at valve pocket (7), secondary drainback passage (25) down also communicates with fuel tank.Right oilhole (18), left spool bottom left oilhole (28) and (26) four oilholes of left spool bottom right oilhole on left oilhole (9), the left spool are being arranged on the left spool (5) on the left spool, when static position, left oilhole (10) on the corresponding valve pocket of left oilhole (9) on the spool of a left side, right oilhole (17) on the corresponding valve pocket of right oilhole (18) on the spool of a left side, left side spool bottom left oilhole (28) corresponding valve pocket bottom left oilhole (30), the down middle oilhole (27) of the corresponding valve pocket of left spool bottom right oilhole (26); When left spool (5) when being pressed into, middle oilhole (13) on the corresponding valve pocket of left oilhole (9) on the spool of a left side, the down middle oilhole (27) of the corresponding valve pocket of left side spool bottom left oilhole (28), left spool bottom right oilhole (26) corresponding valve pocket bottom right oilhole (24), right oilhole (18) sealing on the left spool.Oilhole (14) and right spool bottom right oilhole (23) on right spool (22), having on the right spool on left oilhole (8), the right spool under right oilhole (19), right spool bottom left oilhole (12), the right spool, and there is right spool core hole (20) that five oilholes are connected, when static position, left oilhole (9) on the corresponding left spool of left oilhole (8) on the right spool, right oilhole (18) on the corresponding left spool of right oilhole (19) on the right spool, right spool bottom left oilhole (12) corresponding left spool bottom left oilholes (28), the down middle corresponding left spool bottom right oilhole of oilhole (14) (26) of right spool; When right spool (22) when being pressed into, the down middle corresponding left spool bottom left oilhole of oilhole (14) (28) of right spool, right spool bottom right oilhole (23) corresponding left spool bottom right oilholes (26), on the right spool on left oilhole (8), the right spool right oilhole (18) and right spool bottom left oilhole (12) be closed.There is left spool to block up (4) between described left spool (5) and the valve body (1), is used to seal left spool (5), and the static position that can fix left spool (5).There is right spool to block up (21) between described right spool (22) and the valve body (1), is used to seal right spool (22), the static position of fixing right spool (22) simultaneously.Described left spool (5) is gone up also has the interior leakage of oil passage (3) of oil leaking hole (32) and valve body (1) to communicate, and leakage of oil passage (3) communicates with fuel tank, and the leakage of oil that this can spill right spool (22) leaks into fuel tank by oil leaking hole (32).
Claims (4)
1. a woodworking machinery is with the hands pressed valve, mainly include the valve pocket of valve body and body cavity, spool is arranged in valve pocket, the oil cylinder oil inlet passage and the oil cylinder drainback passage that are connected with oil cylinder in addition in the valve body, and main oil inlet passage and main drainback passage, main oil inlet passage is connected with fuel tank by the outer oil pump of overflow valve in the valve body and valve body with main drainback passage, corresponding main oil inlet passage and main drainback passage and oil cylinder oil inlet passage and oil cylinder drainback passage have corresponding oilhole on valve pocket, it is characterized in that: described spool has two of left spool and right spools, left side spool is at the valve pocket inner chamber, and can be parallel mobile in valve pocket, right spool is at the inner chamber of left spool, and can in left spool, relatively move with left spool, between left valve core cavity and right spool, there is spring to control the static position of left spool and right spool; On valve pocket corresponding oil cylinder drainback passage have left oilhole on the valve pocket, corresponding oil cylinder oil inlet passage have on the valve pocket in oilhole, corresponding main oil inlet passage have under the valve pocket in oilhole, corresponding main drainback passage valve pocket bottom left oilhole is arranged, right oilhole communicates with drainback passage on the pair on the valve pocket also having on the valve pocket, drainback passage then communicates with fuel tank on the pair, also having valve pocket bottom right oilhole to communicate with drainback passage under the pair on the valve pocket, secondary drainback passage down also communicates with fuel tank; Right oilhole on left oilhole on the left spool, the left spool, left spool bottom left oilhole and left spool bottom right oilhole are being arranged on the left spool, when static position, left oilhole on the corresponding valve pocket of left oilhole on the spool of a left side, right oilhole on the corresponding valve pocket of right oilhole on the spool of a left side, the corresponding valve pocket bottom left of left side spool bottom left oilhole oilhole, the down middle oilhole of the corresponding valve pocket of left spool bottom right oilhole; Oilhole and right spool bottom right oilhole on right spool, having under right oilhole on left oilhole on the right spool, the right spool, right spool bottom left oilhole, the right spool, and five oilholes are connected by right spool core hole, when static position, left oilhole on the corresponding left spool of left oilhole on the right spool, right oilhole on the corresponding left spool of right oilhole on the right spool, the corresponding left spool bottom left oilhole of right spool bottom left oilhole, the corresponding left spool bottom right oilhole of the down middle oilhole of right spool.
2. woodworking machinery according to claim 1 is with the hands pressed valve, it is characterized in that: have left spool stifled between described left spool and the valve body.
3. woodworking machinery according to claim 1 and 2 is with the hands pressed valve, it is characterized in that: have right spool stifled between described right spool and the valve body.
4. woodworking machinery according to claim 1 is with the hands pressed valve, it is characterized in that: also have the interior leakage of oil passage of oil leaking hole and valve body to communicate on the described left spool, the leakage of oil passage communicates with fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269408 CN2635305Y (en) | 2003-08-11 | 2003-08-11 | Twin hand pressure valve for woodworking machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03269408 CN2635305Y (en) | 2003-08-11 | 2003-08-11 | Twin hand pressure valve for woodworking machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635305Y true CN2635305Y (en) | 2004-08-25 |
Family
ID=34299953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03269408 Expired - Fee Related CN2635305Y (en) | 2003-08-11 | 2003-08-11 | Twin hand pressure valve for woodworking machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2635305Y (en) |
-
2003
- 2003-08-11 CN CN 03269408 patent/CN2635305Y/en not_active Expired - Fee Related
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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 |