CN102562512B - A kind of hydraulic hand-pump - Google Patents
A kind of hydraulic hand-pump Download PDFInfo
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- CN102562512B CN102562512B CN201010596616.1A CN201010596616A CN102562512B CN 102562512 B CN102562512 B CN 102562512B CN 201010596616 A CN201010596616 A CN 201010596616A CN 102562512 B CN102562512 B CN 102562512B
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Abstract
The present invention relates to a kind of hydraulic hand-pump, by pump assembly, suppressing mechanism, exhaust valve component and decompression mechanism and form, suppressing mechanism by being provided with, this mechanism comprises connecting rod and handle, forms crankrocker mechanism, by hand mode to system voltage supply, flexible operation, convenience, upper pressure is rapid, and voltage supply oil duct is provided with outlet valve, is giving the starting stage of system voltage supply, can by pressing valve rod, excessive gas in system is discharged, prevents fluid from occurring a large amount of foam, improve system effectiveness; Be provided with decompression mechanism in outlet port, mechanism can when system overpressure, and by pressure release bolt by one-way valve opens, rapid pressure release, ensures system safety operation, each executive component in available protecting system.The present invention has compact structure, and volume is little, lightweight, and be easy to carry movement, simple to operate, long service life, working efficiency advantages of higher, is applicable to the units such as middle-size and small-size oil depot, gas station, engineering machinery, test room and uses.
Description
Technical field
The present invention relates to a kind of hydraulic hand-pump.
Background technique
Hydraulic hand-pump for using to hydraulic system voltage supply comprises pump assembly, suppresses assembly, exhaust valve component, decompression mechanism, oil cylinder, piston.When system overload, can pass through decompression mechanism quick pressure releasing, guarantee system works under safety pressure.But existing hydraulic hand-pump exists oil impregnate and oil leakage phenomenon, when system overload, can not quick pressure releasing, operate light not, flexible, mobile, carry inconvenience.
Summary of the invention
The object of the invention is to provide a kind of hydraulic hand-pump, which solves the technical problem of existing hydraulic hand-pump oil impregnate and leakage of oil, can realize quick overload decompression protection, flexible operation, light, mobile, easy to carry.
Technical solution of the present invention is:
A kind of hydraulic hand-pump, by pump assembly, suppresses mechanism, exhaust valve component and decompression mechanism and forms;
Its special way is:
The described mechanism that suppresses comprises handle 6, the pin joint connecting rod 7 on pump assembly, oil cylinder 2, the piston 3 be arranged in oil cylinder 2, an end of described handle 6 and connecting rod 7 pin joint, the middle part of described handle 6 and piston 3 pin joint;
Described pump assembly comprises the pump housing 1, the oil duct be arranged in the pump housing 1, be arranged on entrance steel ball 17 in oil duct and outlet steel ball 18;
Described oil duct comprises entrance oil duct 21, cavity 20, exhaust cavity 22, outlet oil duct 23, pressure-releasing chamber 24 and pressure release oil duct; One end of described entrance oil duct 21 is entrance P1, and the other end communicates with cavity 20 lower end; Described entrance steel ball 17 is arranged in cavity 20 for sealed entry oil duct 21; The middle part of described cavity 20 communicates with oil cylinder 2, and the upper end of described cavity 20 communicates with exhaust cavity 22; The middle part of described exhaust cavity 22 communicates with outlet oil duct 23; Described outlet steel ball 18 is arranged on the upper end for sealed cavity in exhaust cavity 22; The other end of described outlet oil duct 23 communicates with outlet P2; The middle part of described outlet oil duct 23 communicates with the middle part of pressure-releasing chamber 24, and one end of described pressure-releasing chamber 24 communicates with pressure relief opening P3;
Described exhaust valve component comprises and is arranged on exhaust cavity 22 upper end outlet place and exhaust port 26, the stepped shape valve rod 13 be arranged in exhaust port 26, the Packing spring 14 be arranged in exhaust cavity 22 of the bleed screw 11 be threaded with the pump housing 1, axially through plug screw 11 center, the upper end diameter of described valve rod 3 is less than the diameter of exhaust port 26, the lower end diameter of described valve rod 3 is greater than the diameter of exhaust port 26, valve rod underpart is withstood in one end of described Packing spring, and the other end withstands outlet steel ball 18; The O shape circle for sealing is provided with between the underpart of described valve rod 3 and exhaust port;
Described exhaust valve component comprise one end communicate with outlet P2 and the other end be opened on pump housing surface exhaust cavity, be arranged on pump housing surface; Described outlet steel ball is pressed in cavity exit place exhaust cavity and cavity by Packing spring
Described decompression mechanism comprises and is arranged on pressure release spring 15 in pressure-releasing chamber 24 and pressure release steel ball 19, the pressure release bolt 9 be arranged in pressure-releasing chamber, the plug screw that the upper end of described pressure release spring 15 is screwed onto pressure-releasing chamber 24 upper end withstands, pressure release steel ball 19 is pressed in the upper end of pressure release passage 25 by its lower end, the upper end of described pressure release bolt extend into the below of pressure release steel ball 19, and lower end and the pump housing of described pressure release bolt are spirally connected and sealing gasket 10 is provided therebetween.
Technique effect of the present invention is:
1, the present invention is provided with and suppresses mechanism, and this mechanism comprises connecting rod and handle, and form a crankrocker mechanism, this mechanism is by hand mode to system voltage supply, flexible operation, convenience, and upper pressure is rapid.
2, voltage supply oil duct of the present invention is provided with outlet valve, is giving the starting stage of system voltage supply, by pressing valve rod, can be discharged by the excessive gas in system, can prevent fluid from occurring a large amount of foam, improve system effectiveness.
3, outlet port of the present invention is provided with decompression mechanism; one-way valve (pressure release steel ball) when system overpressure, can be opened by pressure release bolt, rapid pressure release by this mechanism; guarantee system is run under the pressure of safety, each executive component in available protecting system.
4, in decompression mechanism, rubber gasket is housed, prevents fluid from leaking outside.
5, the present invention has compact structure, and volume is little, lightweight, and be easy to carry movement, simple to operate, long service life, working efficiency advantages of higher, is applicable to the units such as middle-size and small-size oil depot, gas station, engineering machinery, test room and uses.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention suppresses mechanism and the pump housing;
Fig. 2 is the A-A sectional view of Fig. 1, the i.e. structural representation of pump assembly of the present invention, exhaust valve component and decompression mechanism;
Reference character is: the 1-pump housing, 2-oil cylinder, 3-piston, 4-dust ring, and 5-O shape is enclosed, 6-handle, 7-connecting rod, 8-pivot pin, 9-pressure release bolt, 10-sealing gasket, 11-bleed screw, 12-O shape is enclosed, 13-valve rod, 14-Packing spring, 15-pressure release spring, 16-plug screw, 17-entrance steel ball, 18-exports steel ball, 19-pressure release steel ball, 20-cavity, 21-entrance oil duct, 22-exhaust cavity, 23-exports oil duct, 24-pressure-releasing chamber, 25-pressure release oil duct, 26-exhaust port, P1-entrance, P2-exports, P3-pressure relief opening.
Embodiment
As shown in Figures 1 and 2, a kind of hydraulic hand-pump, comprise pump assembly and dress thereon suppress mechanism, exhaust valve component and decompression mechanism.Packing spring 14 compresses steel ball 18 and valve rod 13, and it is entrance that pressure release spring 15 compresses pressure release steel ball 19, P1 by plug screw 16, and P2 is outlet, and P3 is pressure relief opening, and they are communicated by the oil duct in the pump housing.Suppress mechanism to be connected with the pump housing 1 by pivot pin 8, wherein handle 6 is connected by pivot pin 8 with connecting rod 7, and handle 6 is connected by pivot pin 8 with piston 3.Exhaust valve component is connected with the pump housing 1 by the screw thread of bleed screw 11, and valve rod 13 compresses O shape circle 12 by Packing spring 14, ensures the sealing between valve rod 13 and bleed screw 11.Decompression mechanism is connected with the pump housing 1 by the screw thread of pressure release bolt 9, between the pressure release oil duct of pressure release bolt 9 and the pump housing 1, sealing gasket 10 is housed, prevents fluid from leaking.
Working procedure of the present invention: during hand-hydraulic pump work, P1 mouth connected tank, P2 mouth connects the hydraulic system needing voltage supply, the oil return of P3 mouth connected tank, and ensures that pressure release bolt 9 is in the position making the one-way valve of pressure release passage be in closed condition.Handle 6 is lifted, piston 3 Synchronous lifting in oil cylinder 2, makes oil cylinder and cavity form a negative pressure, the hydraulic oil in fuel tank under barometric pressure effect by steel ball 17 jack-up, enter this cavity, depression of handle 6, this cavity volume reduces gradually, and entrance steel ball 17 is compacted, seal with step, outlet steel ball 18 is by pressure oil jack-up, and pressure oil arrives outlet P2 place, completes a work cycle.Lift and so forth, depression of handle 6, just can continual give system voltage supply.If system pressure exceeds safety range, by pressure release bolt 9 by pressure release steel ball 19 jack-up, outlet P2 is just communicated with pressure relief opening P3, and guarantee system is run under the pressure of safety, each executive component in available protecting system.
Claims (1)
1. a hydraulic hand-pump, by pump assembly, suppresses mechanism, exhaust valve component and decompression mechanism and forms;
It is characterized in that:
The described mechanism that suppresses comprises handle (6), is enclosed (5) by the connecting rod of pivot pin (8) pin joint on pump assembly (7), oil cylinder (2), the piston (3) be arranged in oil cylinder (2), the O shape be arranged on piston (3), be arranged on the dust ring (4) of oil cylinder (2) upper end, described O shape circle (5) is installed on piston (3) bottom, one end of described handle (6) and connecting rod (7) pin joint, the middle part of described handle (6) and piston (3) pin joint
Described pump assembly comprises the pump housing (1), the oil duct be arranged in the pump housing (1), be arranged on entrance steel ball (17) in oil duct and outlet steel ball (18);
Described oil duct comprises entrance oil duct (21), cavity (20), exhaust cavity (22), outlet oil duct (23), pressure-releasing chamber (24) and pressure release oil duct (25); One end of described entrance oil duct (21) is entrance (P1), and the other end communicates with cavity (20) lower end; Described entrance steel ball (17) is arranged in cavity (20) for sealed entry oil duct (21); The middle part of described cavity (20) communicates with oil cylinder (2), and the upper end of described cavity (20) communicates with exhaust cavity (22); Described exhaust cavity (22) communicates with outlet oil duct (23); Described outlet steel ball (18) is arranged on the upper end for sealed cavity (20) in exhaust cavity (22); The other end of described outlet oil duct (23) communicates with outlet (P2); The middle part of described outlet oil duct (23) communicates with the middle part of pressure-releasing chamber (24), and described pressure-releasing chamber (24) communicates with pressure relief opening (P3);
Described exhaust valve component comprises and is arranged on exhaust cavity (22) upper end outlet place and the bleed screw (11) be threaded with the pump housing (1), the axially exhaust port (26) at through bleed screw (11) center, be arranged on the stepped shape valve rod (13) in exhaust port (26), be arranged on the Packing spring (14) in exhaust cavity (22), the upper end diameter of described valve rod (13) is less than the diameter of exhaust port (26), the lower end diameter of described valve rod (13) is greater than the diameter of exhaust port (26), valve rod (13) underpart is withstood in one end of described Packing spring (14), the other end withstands outlet steel ball (18), O shape circle (12) for sealing is provided with between the underpart of described valve rod (13) and exhaust port,
Described decompression mechanism comprises and is arranged on pressure release spring (15) in pressure-releasing chamber (24) and pressure release steel ball (19), pressure release bolt (9), the plug screw (16) that the upper end of described pressure release spring (15) is screwed onto pressure-releasing chamber (24) upper end withstands, pressure release steel ball (19) is pressed in the upper end of pressure release passage (25) by its lower end, the upper end of described pressure release bolt (9) is stretched in the mounting hole of the pump housing (1), head on the below of pressure release steel ball (19), the bottom of described pressure release bolt (9) and the pump housing are spirally connected and sealing gasket (10) are provided therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596616.1A CN102562512B (en) | 2010-12-20 | 2010-12-20 | A kind of hydraulic hand-pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596616.1A CN102562512B (en) | 2010-12-20 | 2010-12-20 | A kind of hydraulic hand-pump |
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| Publication Number | Publication Date |
|---|---|
| CN102562512A CN102562512A (en) | 2012-07-11 |
| CN102562512B true CN102562512B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010596616.1A Active CN102562512B (en) | 2010-12-20 | 2010-12-20 | A kind of hydraulic hand-pump |
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| CN (1) | CN102562512B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670993A (en) * | 2013-11-29 | 2014-03-26 | 南通高盛机械制造有限公司 | Manual pump |
| CN105240238B (en) * | 2015-10-13 | 2017-04-19 | 沈阳恒屹实业有限公司 | Manual hydraulic pump with safety device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201306286Y (en) * | 2008-11-25 | 2009-09-09 | 天津市瑞德螺杆泵制造技术有限公司 | Double-screw liquefied gas pump by-pass valve |
| CN202017591U (en) * | 2010-12-20 | 2011-10-26 | 西安航天远征流体控制股份有限公司 | Manual hydraulic pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6840270B2 (en) * | 2002-10-09 | 2005-01-11 | Visteon Global Technologies, Inc. | Low deviation pressure relief valve for fuel pumps |
| US7195070B2 (en) * | 2004-07-15 | 2007-03-27 | Weatherford/Lamb, Inc. | Method and apparatus for downhole artificial lift system protection |
| CN101243272B (en) * | 2005-08-09 | 2012-01-04 | 斯泰克普尔有限公司 | Pressure relief valve |
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2010
- 2010-12-20 CN CN201010596616.1A patent/CN102562512B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201306286Y (en) * | 2008-11-25 | 2009-09-09 | 天津市瑞德螺杆泵制造技术有限公司 | Double-screw liquefied gas pump by-pass valve |
| CN202017591U (en) * | 2010-12-20 | 2011-10-26 | 西安航天远征流体控制股份有限公司 | Manual hydraulic pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102562512A (en) | 2012-07-11 |
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