CN2615367Y - Hand-operated pump - Google Patents
Hand-operated pump Download PDFInfo
- Publication number
- CN2615367Y CN2615367Y CN 03219565 CN03219565U CN2615367Y CN 2615367 Y CN2615367 Y CN 2615367Y CN 03219565 CN03219565 CN 03219565 CN 03219565 U CN03219565 U CN 03219565U CN 2615367 Y CN2615367 Y CN 2615367Y
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- China
- Prior art keywords
- passage
- valve
- pilot operated
- directional control
- oil
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- Expired - Fee Related
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Abstract
The utility model discloses a hand-pump, belonging to the hydraulic machinery field, comprising a pump body which is provided with a hydraulic cylinder, a piston, an oil inlet valve, an oil outlet valve, an oil inlet and an oil outlet, wherein the pump body is further provided with a manual direction-changing valve and two pilot-controlled direction-changing valves, every valve, hydraulic cylinder, oil inlet and oil outlet in the pump body are communicated with each other via internal channels, and the utility model achieves inverting and bidirectional self-lock by arranging the manual direction-changing valve and the pilot-controlled directional-changing valves in the hand-pump, effectively saves conduit lines and reduces pipe connections, thereby having the advantages of compact structure, no-leak, service reliability, convenient management and low maintenance cost.
Description
Technical field
A kind of hand pump belongs to the hydraulic machinery field.
Background technique
In the existing hydraulic equipment, a kind of hand pump of normal employing, comprise the pump housing, be provided with oil cylinder in the pump housing, piston, oiling valve, outlet valve, filler opening and oil outlet, described piston is arranged in the oil cylinder, filler opening is connected with oil cylinder through oil inlet passage, oil outlet is connected with oil cylinder through oil discharge passage, described oiling valve and outlet valve are one-way valve, oiling valve is arranged in the oil inlet passage, outlet valve is arranged in the oil discharge passage, this hand pump does not have commutation function, realize commutation function as needs, just need the peripheral hardware selector valve, as peripheral hardware one hand-operated direction valve and two pilot operated directional control valves, this hand-operated direction valve is one two position four-way valve, and its four paths are respectively: a route oil pipe connects the hand pump oil outlet, one the tunnel connects fuel tank, two-way connects two pilot operated directional control valves by oil pipe respectively in addition, and pilot operated directional control valve also has two oil inlet and outlets in addition, realizes fuel feeding and oil return, in addition, have respectively also on each pilot operated directional control valve that the oil pipe from hand-operated direction valve communicates on one tunnel control oil pipe and another pilot operated directional control valve, this scheme has increased external pipe, has increased joint simultaneously, cause on the structure compact inadequately, easily leak, management is inconvenient, the maintenance cost height.
Summary of the invention
The utility model purpose is: a kind of technological scheme of hand pump is provided, pump can be commutated, but and bidirectional self-locking, and compact structure is difficult for leaking, convenient management, maintenance cost is low.
The purpose of this utility model is achieved in that a kind of hand pump, comprise the pump housing, be provided with oil cylinder 3 in the pump housing, piston 4, oiling valve 1, outlet valve 5, filler opening T and oil outlet, described piston 4 is arranged in the oil cylinder 3, filler opening T is connected with oil cylinder 3 through oil inlet passage, oil outlet is connected with oil cylinder 3 through oil discharge passage, described oiling valve 1 and outlet valve 5 are one-way valve, oiling valve 1 is arranged in the oil inlet passage, outlet valve 5 is arranged in the oil discharge passage, also be provided with a hand-operated direction valve 8 and two pilot operated directional control valves in the described pump housing, each valve in the pump housing, oil cylinder, filler opening, be connected by the inner passage between the oil outlet; Described two pilot operated directional control valves are respectively left side pilot operated directional control valve 6 that is arranged at pump housing left side and the right side pilot operated directional control valve 7 that is arranged at pump housing right side, and described oil inlet passage is communicated with a passage U, and the hand pump oil discharge passage is communicated with a passage R; The hand-operated direction valve 8 that is provided with in the described pump housing is one two position four-way valve, in hand-operated direction valve 8, be provided with passage O, passage Q, passage P, passage S, passage O communicates with the valve prepass of left side pilot operated directional control valve 6, passage P communicates with passage U, passage R communicates with passage Q, and passage S communicates with the valve prepass of right side pilot operated directional control valve 7; Left side pilot operated directional control valve 6 and right side pilot operated directional control valve 7 respectively are made of spool, valve seat, hydraulic control piston 9, spring, described spring is pressed in spool in the valve seat, the piston rod that is arranged at hydraulic control piston 9 ends stretches in the valve prepass of place one side pilot operated directional control valve along the axial direction of spring, the hydraulic control piston bottom of left side pilot operated directional control valve 6 is provided with a passage M, passage M and passage S connect, the hydraulic control piston top of right side pilot operated directional control valve 7 is provided with a passage L, and passage L and passage O connect; The spool upper channel of left side pilot operated directional control valve 6 communicates with oil inlet and outlet I; The spool lower passage of right side pilot operated directional control valve 7 communicates with another oil inlet and outlet J.
The utility model has reached the purpose that commutates by hand-operated direction valve and pilot operated directional control valve are set in hand pump, and has saved pipeline effectively, has reduced pipe joint, thereby has made its compact structure, is difficult for leaking, and is reliable, convenient management, and maintenance cost is low.
Description of drawings
Fig. 1: the utility model plan view;
The A-A of Fig. 2: Fig. 1 is to view;
The B-B of Fig. 3: Fig. 1 is to view;
The C-C of Fig. 4: Fig. 1 is to view;
Fig. 5: the utility model fundamental diagram.
Among the figure, 1 oiling valve; 2 rocking bars; 3 oil cylinders; 4 pistons; 5 outlet valves; 6 left side Pilot operated check valves; 7 right side Pilot operated check valves; 8 hand-operated direction valves; 9 hydraulic control pistons; I, J oil inlet and outlet; L, M, O, P, Q, R, S, U passage; T hand pump filler opening.
Embodiment
As figure, a kind of hand pump, comprise the pump housing, be provided with oil cylinder 3 in the pump housing, piston 4, oiling valve 1, outlet valve 5, oil inlet and outlet, described piston 4 is driven by rocking bar 2, also be provided with a hand-operated direction valve 8 and two pilot operated directional control valves in the described pump housing, be connected by the inner passage between each valve, oil cylinder, filler opening, the oil outlet in the pump housing.Described two pilot operated directional control valves are divided into left side pilot operated directional control valve 6 and right side pilot operated directional control valve 7, particularly, hand pump filler opening T one end is communicated with fuel tank, the other end is communicated with an oiling valve 1 and a passage U, in the hand pump oil discharge passage, is provided with an outlet valve 5 and a passage R; Hand-operated direction valve 8 is one two position four-way valve, is provided with passage O, passage Q, passage P, passage S in hand-operated direction valve 8, wherein, passage O communicates with left side pilot operated directional control valve 6, passage P communicates with oil suction chamber internal channel U, and passage R communicates with passage Q, and passage S communicates with right side pilot operated directional control valve 7; Left side pilot operated directional control valve 6 and right side pilot operated directional control valve 7 are made of spool, valve seat, hydraulic control piston 9, spring, spring is pressed in spool in the valve seat, the piston rod that is arranged at hydraulic control piston (9) end stretches in the valve prepass of place one side pilot operated directional control valve along the axial direction of spring, wherein a passage M is arranged at the hydraulic control piston bottom of left side pilot operated directional control valve 6, passage M and passage S connect, one passage L is arranged at the hydraulic control piston top of right side pilot operated directional control valve, and passage L and passage O connect; The spool upper channel of left side pilot operated directional control valve communicates with oil inlet and outlet I, and this hydraulic fluid port is connected a peripheral apparatus, and the spool lower passage of right side pilot operated directional control valve communicates with another oil inlet and outlet J, and this hydraulic fluid port is also connected described peripheral apparatus.
Manually during air pump inoperative, under the spring force effect, two Pilot operated check valves all are in closed condition, locking oil circuit, make peripheral apparatus stably be in a certain state, not influenced by external force.
During hand pump work, rotation manual selector valve 8 is connected passage O and passage P, and passage Q and passage S connect simultaneously; Press hand pump rocking bar 2 up and down, hand pump piston 4 is moved up and down, oil enters hand pump piston 4 lower space and process outlet valve 5 inlet passage R under pressure promotes from filler opening through oiling valve 1, again through R inlet passage Q, through passage Q inlet passage S, be divided into three the tunnel behind the pressure oil inlet passage S, one the tunnel enters the hydraulic control lower part of piston space of right side Pilot operated check valve, promote the hydraulic control piston stroking upward, the oil on hydraulic control piston top is pressed into passage L, and, making the hydraulic control piston reset by passage L inlet passage O, another road enters the hydraulic control lower part of piston space of left side Pilot operated check valve 6 through passage M, promote piston stroking upward, open left side Pilot operated check valve 6, the spring tension that also has one road hydraulic oil to overcome right side Pilot operated check valve 7 flows out from oil inlet and outlet J, drives peripheral apparatus work; The oil return of peripheral apparatus enters and through left side Pilot operated check valve 6 inlet passage O, inlet passage P is back to manual pump intake by P through passage U again from oil inlet and outlet I, presses rocking bar 2 repeatedly and drives peripheral apparatus and finish course of action one time.
When the counter rotation manual selector valve arrives the another location, passage O and passage Q connect, passage P and passage S connect simultaneously, press hand pump rocking bar 2 up and down, make the hand pump piston up-down, oil enters hand pump piston 4 lower space and process outlet valve 5 inlet passage R under pressure promotes from persuading pump filler opening T through oiling valve 1, again through R inlet passage Q, through passage Q inlet passage O, be divided into three the tunnel behind the pressure oil inlet passage O, one the tunnel enters the upper space of the hydraulic control piston of left side Pilot operated check valve, promote the hydraulic control descent of piston, the oil of hydraulic control piston bottom is pressed into passage M, and by passage M inlet passage S, make this hydraulic control piston reset, another road enters the upper space of the hydraulic control piston of right side Pilot operated check valve through passage L, promotes descent of piston, opens right side Pilot operated check valve 7, the spring tension that also has one road hydraulic oil to overcome left side Pilot operated check valve 6 enters peripheral apparatus from oil inlet and outlet I, promotes peripheral apparatus work; The oil return of peripheral apparatus is from oil inlet and outlet J and through right side Pilot operated check valve 7 inlet passage S, inlet passage P again, be back to manual pump intake by passage P through passage U, press rocking bar 2 repeatedly and drive peripheral apparatus, finish the counteragent process one time constantly to motion in the other direction.
During low on fuel, the oil in the fuel tank under the effect of hand pump, constantly replenishes the system that enters from filler opening T in the system.
Claims (1)
1, a kind of hand pump, comprise the pump housing, be provided with oil cylinder (3) in the pump housing, piston (4), oiling valve (1), outlet valve (5), filler opening (T) and oil outlet, described piston (4) is arranged in the oil cylinder (3), filler opening (T) is connected with oil cylinder (3) through oil inlet passage, oil outlet is connected with oil cylinder (3) through oil discharge passage, described oiling valve (1) and outlet valve (5) are one-way valve, oiling valve (1) is arranged in the oil inlet passage, outlet valve (5) is arranged in the oil discharge passage, it is characterized by: also be provided with a hand-operated direction valve (8) and two pilot operated directional control valves in the described pump housing, each valve in the pump housing, oil cylinder, filler opening, be connected by the inner passage between the oil outlet; Described two pilot operated directional control valves are respectively left side pilot operated directional control valve (6) that is arranged at pump housing left side and the right side pilot operated directional control valve (7) that is arranged at pump housing right side, and described oil inlet passage is communicated with a passage (U), and the hand pump oil discharge passage is communicated with a passage (R); The hand-operated direction valve (8) that is provided with in the described pump housing is one two position four-way valve, in hand-operated direction valve (8), be provided with passage (O), passage (Q), passage (P), passage (S), passage (O) communicates with the valve prepass of left side pilot operated directional control valve (6), passage (P) communicates with passage (U), passage (R) communicates with passage (Q), and passage (S) communicates with the valve prepass of right side pilot operated directional control valve (7); Each is made of left side pilot operated directional control valve (6) and right side pilot operated directional control valve (7) spool, valve seat, hydraulic control piston (9), spring, described spring is pressed in spool in the valve seat, the piston rod that is arranged at hydraulic control piston (9) end stretches in the valve prepass of place one side pilot operated directional control valve along the axial direction of spring, the hydraulic control piston bottom of left side pilot operated directional control valve (6) is provided with a passage (M), passage (M) is connected with passage (S), the hydraulic control piston top of right side pilot operated directional control valve (7) is provided with a passage (L), and passage (L) is connected with passage (O); The spool upper channel of left side pilot operated directional control valve (6) communicates with oil inlet and outlet (I); The spool lower passage of right side pilot operated directional control valve (7) communicates with another oil inlet and outlet (J).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03219565 CN2615367Y (en) | 2003-01-22 | 2003-01-22 | Hand-operated pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03219565 CN2615367Y (en) | 2003-01-22 | 2003-01-22 | Hand-operated pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2615367Y true CN2615367Y (en) | 2004-05-12 |
Family
ID=34244236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03219565 Expired - Fee Related CN2615367Y (en) | 2003-01-22 | 2003-01-22 | Hand-operated pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2615367Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727295A (en) * | 2014-01-23 | 2014-04-16 | 特福隆集团有限公司 | Emergency hydraulic manual operation module for gas-liquid linkage actuator |
| CN105822757A (en) * | 2016-05-26 | 2016-08-03 | 江苏兰格特自动化设备有限公司 | Balanced piston type hydraulic hand pump with functions of manual reversing and automatic reset |
| CN106799616A (en) * | 2017-03-14 | 2017-06-06 | 成都中电锦江信息产业有限公司 | A kind of manual hydraulic device for having a fast absorbing oil function |
-
2003
- 2003-01-22 CN CN 03219565 patent/CN2615367Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727295A (en) * | 2014-01-23 | 2014-04-16 | 特福隆集团有限公司 | Emergency hydraulic manual operation module for gas-liquid linkage actuator |
| CN103727295B (en) * | 2014-01-23 | 2015-12-02 | 特福隆（上海）科技有限公司 | For the emergency hydraulic manual operation module of gas-liquid linkage actuator |
| CN105822757A (en) * | 2016-05-26 | 2016-08-03 | 江苏兰格特自动化设备有限公司 | Balanced piston type hydraulic hand pump with functions of manual reversing and automatic reset |
| CN105822757B (en) * | 2016-05-26 | 2017-12-19 | 江苏兰格特自动化设备有限公司 | A kind of balanced type piston hydraulic hand pump with manual reverse of direction and auto-reset function |
| CN106799616A (en) * | 2017-03-14 | 2017-06-06 | 成都中电锦江信息产业有限公司 | A kind of manual hydraulic device for having a fast absorbing oil function |
| CN106799616B (en) * | 2017-03-14 | 2018-08-24 | 成都中电锦江信息产业有限公司 | A kind of manual hydraulic device having fast absorbing oil function |
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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: 20040512 |