CN203584936U - Hand guided rice transplanter pump valve - Google Patents
Hand guided rice transplanter pump valve Download PDFInfo
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- CN203584936U CN203584936U CN201320594463.6U CN201320594463U CN203584936U CN 203584936 U CN203584936 U CN 203584936U CN 201320594463 U CN201320594463 U CN 201320594463U CN 203584936 U CN203584936 U CN 203584936U
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Abstract
The utility model relates to a hand guided rice transplanter pump valve which is composed of a pump body, a pump cover and a valve body, wherein the valve body is provided with a reversing oil chamber, an overflow valve chamber, an oil inlet/outlet opening, and a channel A and a channel B both connected with an external cylinder for reversing, wherein a three-position four-way reversing valve assembly is arranged in the reversing oil chamber, the reversing valve assembly comprises a lifting valve core capable of switching oil channels, and one end of the lifting valve core extends out of the valve body; an overflow valve assembly comprising a pressure regulating valve core is arranged in the overflow valve chamber; the pump body comprises a pump chamber and a pump assembly, and the oil outlet of the pump chamber is communicated with the oil inlets of the reversing oil chamber and the overflow valve chamber in the valve body. Such a structure is designed so that the pump, the overflow valve and the reversing valve are integrated, and manual reversing can be realized by virtue of the end portion of the lifting valve core which extends out of the valve body; the hand guided rice transplanter pump valve is convenient in reversing operation, compact and rational in structure, low in weight, small in space occupation, small and beautiful in appearance, good in self-suction performance, convenient to maintain and overhaul, and the like.
Description
Technical field
The utility model relates to a kind of transplanter, especially relates to the hand-held transplanter pump valve that a kind of transplanter is used.
Background technique
For transplanter, especially hand transplanting machine, floats in order effectively to reduce rice shoot, guarantees that transplanting depth is consistent, adopts automatic profiling, lifting function more.The lifting function of transplanter is hydraulic lifting control device mostly, for example be called " the fully hydraulic driven system of rise-fall type transplanter " (publication No.: public technology CN103010013A), it comprises fuel tank, oil pump, some solenoid valves and some motors, it comprises front-wheel drive oil circuit, rear wheel drive oil circuit, transplanting oil circuit and jacking oil circuit, described front-wheel drive oil circuit is connected with two front-wheel drive motors, between two front-wheel drive motors, be provided with a synchronous valve, described rear wheel drive oil circuit is connected with two rear wheel drive motors, between two rear wheel drive motors, be also provided with synchronous valve, described transplanting oil circuit is connected with a transplanting motor, it comprises and turns to oil circuit, described jacking oil circuit is connected with one or several jacking cylinders.But this hydraulic system structure is complicated, profile takes up room more greatly, and increase the defects such as complete machine weight, Maintenance and Repair inconvenience.
Summary of the invention
The utility model main purpose is to provide that a kind of compact structure, profile are little, Maintenance and Repair hand-held transplanter pump valve easily.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of hand-held transplanter pump valve, comprise that the pump housing, pump cover, valve body form, and is characterized in that: A channel and B passage that valve body is established commutation oil pocket, overflow valve pocket, oil inlet and outlet and is connected commutation with outer inside casing; In commutation oil pocket, establish three position four-way directional control valve assembly, reversing valve assembly comprises the lifting spool of changeable oil circuit, and this lifting spool one end stretches out in outside valve body; In overflow valve pocket, establish the spill valve that comprises adjusting pressuring valve core; The pump housing is pump chamber and pump assembly, and the oil outlet of pump chamber is communicated with the filler opening of valve body interior commutation oil pocket and overflow valve pocket.This structure, adopts pump, relief valve, the design of selector valve integral type, can stretch out in the end manual reverse of direction outside valve body by lifting spool, switch operation is convenient, compact structure, reasonable, lightweight, take up room little, small and exquisite attractive in appearance, the advantage such as self-priming performance good, Maintenance and Repair are convenient of profile.
As preferably, the pump assembly in the pump housing comprises driving gear, the driven gear of engagement, and the axle head of driving gear stretches out in pump housing Wai Yu external drive mechanism and is connected.Adopt gear pump, more applicable many dusts, many weeds, the field conditions that temperature variation is large, be not subject to environmental disturbances, all the time service behaviour preferably.
As preferably, described spill valve comprises pressure regulation plug screw and pressure adjusting spring, and pressure regulation plug screw is cavity body, and pressure adjusting spring one end is resisted against adjusting pressuring valve core, the other end is resisted against the bottom that pressure regulation plug screw is cavity; Overflow valve pocket is cylindrical cavity, and adjusting pressuring valve core can be fixed in overflow valve pocket axially slidably, and the position that overflow valve pocket closes on adjusting pressuring valve core end arranges the overflow ducts that leads to valve body outside.This structure, pressure regulation is convenient, and overall structure is little.
As preferably, the middle part of described lifting spool arranges the through hole radially connecting, these through hole two ends can be communicated with commutation valve pocket filler opening and oil drain out respectively, on the lifting spool outer peripheral surface of these through hole both sides, respectively establish a groove, and two grooves align respectively the outlet of A channel and B passage; The center angle at each place, groove both sides is not less than 90 °, and when changeover valve core rotates 90 °, groove valve pocket filler opening that will commutate is communicated with A channel, another groove will commutate valve pocket oil outlet and B channel connection.This structure, valve core rotation commutation is switched stable, reliable, and convenient, overall structure is little.
Therefore, the utlity model has commutation, pressure regulation is easy to operate, compact structure, lightweight, take up room little, small and exquisite attractive in appearance, the beneficial effect such as self-priming performance good, Maintenance and Repair are convenient of profile.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Accompanying drawing 2 is side views of accompanying drawing 1.
Accompanying drawing 3 is side views of accompanying drawing 2.
Accompanying drawing 4 is A-A sectional views of accompanying drawing 3.
Accompanying drawing 5 is sectional views of commutation valve pocket.
Accompanying drawing 6 is sectional views of changeover valve core.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the utility model hand-held transplanter pump valve, as shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 and accompanying drawing 5, it comprises that the pump housing 1, pump cover 2, valve body 3 form, A channel and B passage that valve body 3 is established commutation oil pocket, overflow valve pocket, oil inlet and outlet and is connected commutation with outer inside casing; In commutation oil pocket, establish three position four-way directional control valve assembly, reversing valve assembly comprises the lifting spool 7 of changeable oil circuit, and these lifting spool 7 one end stretch out in outside valve body 3; In overflow valve pocket, establish the spill valve that comprises adjusting pressuring valve core 8; The pump housing 1 is pump chamber and pump assembly, and the oil outlet of pump chamber is communicated with the filler opening of the interior commutation oil pocket of valve body 3 and overflow valve pocket.Between the pump housing 1, pump cover 2, setting sleeve 6 is set.
Because the many dusts of field conditions of transplanter, many weeds, temperature variation are large, adopt gear pump, the more applicable environmental disturbances that is not subject to, all the time service behaviour preferably.Pump assembly in the pump housing 1 comprises driving gear, the driven gear of engagement, and the axle head of driving gear stretches out in pump housing Wai Yu external drive mechanism and is connected.
Relief valve can be used for adjusting selector valve output oil pressure power.Spill valve comprises pressure regulation plug screw 11 and pressure adjusting spring 9, and pressure regulation plug screw 11 is cavity body, and pressure adjusting spring 9 one end are resisted against adjusting pressuring valve core 8, the other end is resisted against pressure regulation plug screw 11 for the bottom of cavity; Overflow valve pocket is cylindrical cavity, and adjusting pressuring valve core 8 can be fixed in overflow valve pocket axially slidably, and the position that overflow valve pocket closes on adjusting pressuring valve core 8 ends arranges the overflow ducts that leads to valve body 3 outsides.
Selector valve can manual reverse of direction operation.As shown in accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, the middle part of lifting spool 7 arranges the through hole 72 radially connecting, these through hole 72 two ends can be communicated with commutation valve pocket filler opening and oil drain out respectively, on lifting spool 7 outer peripheral surfaces of these through hole 72 both sides, respectively establish 71, two grooves 71 of a groove and align respectively the outlet of A channel and B passage; The center angle at each groove 71 place, both sides is not less than 90 °, and when changeover valve core rotates 90 °, groove 71 valve pocket filler opening that will commutate is communicated with A channel, another groove 72 will commutate valve pocket oil outlet and B channel connection.Commutation valve pocket oil outlet is communicated with fuel tank.
The utility model adopts the valve integrated formula design of pump (gear pump), has compact structure, small and exquisite attractive in appearance, the advantage such as self-priming performance good, Maintenance and Repair are convenient of profile.Make transplanter there is automatic profiling, hydraulic lifting function, effectively reduce rice shoot and float, guarantee that transplanting depth is consistent.
The pump housing adopts aluminum alloy material, have lightweight, be difficult for getting rusty, can precise forming, the advantage such as good heat dissipation.But mechanical strength, impact fatigue-resistant intensity, ratio of rigidity cast iron are little, therefore inlay DU bearing (3-layer composite material Nonlubricated bearing) in the pump housing and pump cover, have well solved the problem of aluminum component wear resistance deficiency.Valve body adopts high strength cast iron, and its mechanical strength, rigidity, wear resistance, impact fatigue-resistant intensity are good, can well guarantee the working life of valve body.
During use, the filler opening of gear pump connects oil sources, and the A channel of commutation oil pocket and B passage are connected respectively the oil inlet and outlet of outside oil cylinder.Control selector valve, can be by coupled oil cylinder by complete machine in three kinds of states, body fixes that (nature), body rise, body declines, and is described below:
A, changeover valve core are in home position when (being meta), and as shown in accompanying drawing 4, accompanying drawing 5, the A channel of selector valve and B passage are all in closed state, and body maintains static;
B, rotate changeover valve core, A channel or B channel connection that the filler opening of the oil pocket that makes to commutate is communicated with oil cylinder rising chamber, actuate cylinder, body rising;
C, contrary with the operation of body rising, counterrotating changeover valve core, forms body and declines.
Claims (4)
1. a hand-held transplanter pump valve, comprises that the pump housing (1), pump cover (2), valve body (3) form, and is characterized in that: A channel and B passage that valve body (3) is established commutation oil pocket, overflow valve pocket, oil inlet and outlet and is connected commutation with outer inside casing; In commutation oil pocket, establish three position four-way directional control valve assembly, reversing valve assembly comprises the lifting spool (7) of changeable oil circuit, and this lifting spool (7) one end stretches out in outside valve body (3); In overflow valve pocket, establish the spill valve that comprises adjusting pressuring valve core (8); The pump housing (1) is pump chamber and pump assembly, and the oil outlet of pump chamber is communicated with the filler opening of valve body (3) interior commutation oil pocket and overflow valve pocket.
2. hand-held transplanter pump valve according to claim 1, is characterized in that: the pump assembly in the pump housing (1) comprises driving gear, the driven gear of engagement, and the axle head of driving gear stretches out in pump housing Wai Yu external drive mechanism and is connected.
3. hand-held transplanter pump valve according to claim 1, it is characterized in that: described spill valve comprises pressure regulation plug screw (11) and pressure adjusting spring (9), pressure regulation plug screw (11) is cavity body, and pressure adjusting spring (9) one end is resisted against adjusting pressuring valve core (8), the other end is resisted against pressure regulation plug screw (11) for the bottom of cavity; Overflow valve pocket is cylindrical cavity, and adjusting pressuring valve core (8) can be fixed in overflow valve pocket axially slidably, and the position that overflow valve pocket closes on adjusting pressuring valve core (8) end arranges the overflow ducts that leads to valve body (3) outside.
4. according to the hand-held transplanter pump valve described in claim 1 or 2 or 3, it is characterized in that: the middle part of described lifting spool (7) arranges the through hole (72) radially connecting, this through hole (72) two ends can be communicated with commutation valve pocket filler opening and oil drain out respectively, on lifting spool (7) outer peripheral surface of this through hole (72) both sides, respectively establish a groove (71), two grooves (71) align respectively the outlet of A channel and B passage; The center angle at each groove (71) place, both sides is not less than 90 °, and when changeover valve core rotates 90 °, a groove (71) the valve pocket filler opening that will commutate is communicated with A channel, another groove (72) will commutate valve pocket oil outlet and B channel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594463.6U CN203584936U (en) | 2013-09-25 | 2013-09-25 | Hand guided rice transplanter pump valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594463.6U CN203584936U (en) | 2013-09-25 | 2013-09-25 | Hand guided rice transplanter pump valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584936U true CN203584936U (en) | 2014-05-07 |
Family
ID=50582866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320594463.6U Expired - Lifetime CN203584936U (en) | 2013-09-25 | 2013-09-25 | Hand guided rice transplanter pump valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635889A (en) * | 2021-11-22 | 2022-06-17 | 浙江华章科技有限公司 | Automatic reciprocating cylinder assembly |
-
2013
- 2013-09-25 CN CN201320594463.6U patent/CN203584936U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635889A (en) * | 2021-11-22 | 2022-06-17 | 浙江华章科技有限公司 | Automatic reciprocating cylinder assembly |
| CN114635889B (en) * | 2021-11-22 | 2024-01-30 | 浙江华章科技有限公司 | Automatic reciprocating cylinder assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |