CN110725784A - Ultrahigh pressure double-acting manual pump - Google Patents
Ultrahigh pressure double-acting manual pump Download PDFInfo
- Publication number
- CN110725784A CN110725784A CN201911036235.5A CN201911036235A CN110725784A CN 110725784 A CN110725784 A CN 110725784A CN 201911036235 A CN201911036235 A CN 201911036235A CN 110725784 A CN110725784 A CN 110725784A
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- China
- Prior art keywords
- double
- acting
- pressure
- acting valve
- oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/14—Pumps characterised by muscle-power operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Abstract
The invention relates to an ultrahigh pressure double-acting manual pump, belonging to the technical field of hydraulic boosting tools. The main technical scheme is as follows: the double-acting valve core is arranged in a double-acting valve core hole, and the double-acting piston is arranged in a double-acting oil cylinder; the top end of the double-acting valve block is provided with a two-stage oil cylinder, a handle positioning hole, a low-pressure limiting valve and a high-pressure limiting valve, and the side surface of the double-acting valve block is provided with a straight joint hole, a double-acting valve core hole and a hydraulic gauge hole; the double-acting valve core comprises a limiting table, a sealing groove A, an oil duct A, a sealing groove B, an oil duct B, a guide shaft and a sealing groove C which are connected in sequence. The double-oil-way switching valve can realize the switching of the inlet and outlet of double oil ways on the premise of ensuring that ultrahigh pressure can be output, the pressure maintaining performance is stable after the pressure reaches a target value, the two-stage piston structure ensures that low-pressure oil filling is rapid, high-pressure work is labor-saving, the work efficiency is greatly improved, the labor cost is saved, the structure is simple and light, and the material is firm and durable.
Description
Technical Field
The invention relates to the technical field of hydraulic boosting tools, in particular to an ultrahigh pressure double-acting manual pump.
Background
The hydraulic tool field has a class of products, the work process needs the function of two-way oil pressure access, such as a hydraulic wrench, a stretcher with hydraulic reset and the like, the work process needs to be equipped with double-acting pressure supply equipment (a double-acting manual pump and a double-acting electric pump), the maximum pressure of the double-acting manual pump on the market is generally 75MPa, and the form of a reversing valve is a toggle valve core structure; the pressure bearing capacity is weak, and the pressure is easy to leak after long-time pressure maintaining, so that the pressure is obviously reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention designs the ultrahigh pressure double-acting manual pump with a telescopic double-acting valve core, which has a more compact structure and stronger bearing capacity.
The technical scheme of the invention is as follows: the ultrahigh pressure double-acting manual pump comprises a double-acting structure, a working pressure rod, an oil tank and an ultrahigh pressure quick connector; one end of the working pressure rod is connected with a working pressure head, the working pressure head is connected with a double-acting valve block through a double-stage piston, one end of the double-acting valve block is connected with an oil tank, the other end of the double-acting valve block is connected with an ultrahigh pressure quick connector, and a manual needle valve is arranged on the side face of the double-acting valve block;
the double-acting structure comprises a double-acting valve block, a double-acting valve core and a double-stage piston, wherein the double-acting valve core is arranged in a double-acting valve core hole, and the double-stage piston is arranged in a double-stage oil cylinder; the double-acting valve core hole is adjusted through a handle;
the top end of the double-acting valve block is provided with a two-stage oil cylinder, a handle positioning hole, a low-pressure limiting valve and a high-pressure limiting valve, and the side surface of the double-acting valve block is provided with a straight joint hole, a double-acting valve core hole and a hydraulic gauge hole;
the double-acting valve core comprises a limiting table, a sealing groove A, an oil duct A, a sealing groove B, an oil duct B, a guide shaft and a sealing groove C which are connected in sequence, a combined sealing ring is arranged in the sealing groove A, the sealing groove B and the sealing groove C, and the combined sealing ring comprises an arched rubber ring and a check ring;
the double-stage piston comprises a handle fixing shaft, a low-pressure piston rod and a high-pressure piston rod which are connected in sequence.
Further, the base is arranged below the oil tank, and the oil tank is provided with an oil tank rear cover and an oil tank upper cover.
The invention has the following beneficial effects: compared with the original equipment, the double-oil-way oil-filling device has the greatest advantages that the double-oil-way oil-filling device can realize the switching of the inlet and the outlet of double oil ways on the premise of ensuring that the ultrahigh pressure can be output, the pressure maintaining performance is stable after the pressure reaches a target value, the double-stage piston structure ensures that the low-pressure oil filling is rapid, the high-pressure work is labor-saving, the work efficiency is greatly improved, the labor cost is saved, the structure is simple and.
Drawings
FIG. 1 is a schematic structural diagram 1 of the present invention;
FIG. 2 is a schematic structural diagram of the present invention 2;
FIG. 3 is a schematic structural view of a double acting valve block of the present invention;
FIG. 4 is a schematic structural view of a dual action valve cartridge of the present invention;
FIG. 5 is a schematic diagram of the structure of a double acting piston of the present invention;
FIG. 6 is an assembled cross-sectional view of a double acting valve block and a double acting valve spool;
FIG. 7 is a schematic structural diagram of the present invention 3;
FIG. 8 is an enlarged view of portion A of FIG. 7;
fig. 9 is a schematic structural view of the combined seal ring.
Wherein: 1. the hydraulic double-acting valve comprises a double-acting valve block, 2, a double-acting valve core, 3, a double-acting piston, 4, a working pressure head, 5, an ultrahigh pressure quick plug connector, 6, a manual needle valve, 7, an oil tank, 8, a base, 9, an oil tank rear cover, 10, an oil tank upper cover, 11, a working pressure rod, 12, a double-acting valve core hole, 13, a hydraulic gauge hole, 14, a double-acting oil cylinder, 15, a low-pressure limiting valve, 16, a straight joint hole, 17, a handle positioning hole, 18, a high-pressure limiting valve, 21, a limiting table, 22, a sealing groove A, 23, an oil duct A, 24, a sealing groove B, 25, an oil duct B, 26, a guide shaft, 27, a sealing groove C, 31, a handle fixing shaft, 32, a low-pressure.
Detailed Description
The present invention will be further described with reference to the following specific examples.
As shown in fig. 1-9, the ultrahigh pressure double-acting manual pump comprises a double-acting structure, a working pressure rod 11, an oil tank 7 and an ultrahigh pressure quick connector 5; one end of the working pressure rod 11 is connected with a working pressure head 4, the working pressure head 4 is connected with a double-acting valve block 1 through a double-stage piston 3, one end of the double-acting valve block 1 is connected with an oil tank 7, the other end of the double-acting valve block 1 is connected with an ultrahigh pressure quick connector, and a manual needle valve 6 is arranged on the side surface of the double-acting valve block 1; the double-acting structure comprises a double-acting valve block 1, a double-acting valve core 2 and a double-stage piston 3, wherein the double-acting valve core 2 is arranged in a double-acting valve core hole 12, and the double-stage piston 3 is arranged in a double-stage oil cylinder 14; the double-acting valve core hole 12 is adjusted through a handle 28, the top end of the double-acting valve block 1 is provided with a double-stage oil cylinder 14, a handle positioning hole 17, a low-pressure limiting valve 15 and a high-pressure limiting valve 18, and the side surface of the double-acting valve core hole is provided with a straight joint hole 16, a double-acting valve core hole 12 and a hydraulic gauge hole 13; the double-acting valve core 2 comprises a limiting table 21, a sealing groove A22, an oil passage A23, a sealing groove B24, an oil passage B25, a guide shaft 26 and a sealing groove C27 which are connected in sequence, a combined sealing ring is arranged in the sealing groove A22, the sealing groove B24 and the sealing groove C27, and the combined sealing ring comprises an arched rubber ring 35 and a retaining ring 34; the double-stage piston 3 comprises a handle fixing shaft 31, a low-pressure piston rod 32 and a high-pressure piston rod 33 which are connected in sequence. The lower part of the oil tank 7 is a base 8, and the oil tank 7 is provided with an oil tank rear cover 9 and an oil tank upper cover 10.
In order to solve the problem that the double-acting manual pump cannot pump high pressure of more than 150MPa, the invention redesigns a double-acting valve core structure and pertinently matches a combined sealing ring capable of bearing ultrahigh pressure, the combined sealing ring is formed by a retainer ring 34 and a rubber ring 35, the rubber ring is made of nitrile rubber, and the combined sealing ring is arranged in a sealing groove A22, a sealing groove B24 and a sealing groove C27.
When the pressure is higher than 3Mpa, the hydraulic oil is converted from the bypass flow of the low pressure of the large piston to the high pressure work of the small piston. The piston is designed to be used when the double-pole piston is large in low pressure and large in flow, the small piston is high in pressure and small in reaction force, and the large piston low pressure and the small piston high pressure are integrated. The two-stage piston 3 and the oil cylinder matched with the two-stage piston are designed into a two-stage structure, so that the hydraulic oil with large flow output at low pressure is ensured to realize quick oil charging, the small oil pressure area when the small flow piston acts at the pressure of 150MPa is ensured, and the manual force arm cannot exert too large force at the ultrahigh pressure pressurizing stage.
The double-acting valve block 1 is formed by punching holes with different sizes on one valve block to realize the effects of low pressure, high pressure and the like, so that the existence of structural functions of low pressure limiting, high pressure limiting, oil inlet non-return, low pressure and high pressure area isolation, high pressure output one-way valves and the like is ensured, the structure is small as possible, the weight is relatively light, and the manual carrying and operation are convenient. The double-acting valve core 2 switches the flow direction through a side handle; can bear the combined sealing of 150-200MPa pressure. The machining method of the double-acting valve block 1 has the difficulty of deep hole drilling machining in multi-hole penetration machining.
The main product components of the invention are:
1. double-acting valve block 1: the structural design of the ultrahigh pressure double-acting valve block and the processing method for innovatively processing the valve block have the difficulty of processing a deep hole drill in multi-hole penetration processing.
2. The double-acting valve core 2: the structural design of the double-acting valve core belongs to the original design that the flow direction is converted by a handle beside the double-acting valve core; can bear the combined sealing of 150-200MPa pressure.
3. A two-stage piston 3: the piston and the oil cylinder matched with the piston are designed into a double-stage structure, so that the hydraulic oil with large flow output at low pressure is ensured to realize quick oil charging, the small oil pressure area when the small-flow piston acts at the pressure of 150MPa is ensured, and the manual force arm can not exert too large force at the ultrahigh pressure stage.
4. Ultrahigh pressure combined sealing and double-acting reversing sealing; the combined sealing ring is a check ring and a self-grinding rubber ring, and can bear the combined sealing of the pressure of 150-200 MPa.
The foregoing examples are provided for illustration and description of the invention only and are not intended to limit the invention to the scope of the described examples. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed.
Claims (2)
1. The ultrahigh pressure double-acting manual pump is characterized by comprising a double-acting structure, a working pressure rod (11), an oil tank (7) and an ultrahigh pressure quick connector (5); one end of the working pressure rod (11) is connected with a working pressure head (4), the working pressure head (4) is connected with a double-acting valve block (1) through a double-stage piston (3), one end of the double-acting valve block (1) is connected with an oil tank (7), the other end of the double-acting valve block (1) is connected with an ultrahigh pressure quick connector, and a manual needle valve (6) is arranged on the side surface of the double-acting valve block (1);
the double-acting structure comprises a double-acting valve block (1), a double-acting valve core (2) and a double-stage piston (3), wherein the double-acting valve core (2) is arranged in a double-acting valve core hole (12), and the double-stage piston (3) is arranged in a double-stage oil cylinder (14); the double-acting valve core hole (12) is adjusted through a handle (28);
the top end of the double-acting valve block (1) is provided with a double-stage oil cylinder (14), a handle positioning hole (17), a low-pressure limiting valve (15) and a high-pressure limiting valve (18), and the side surface of the double-acting valve block is provided with a straight joint hole (16), a double-acting valve core hole (12) and a hydraulic gauge hole (13);
the double-acting valve core (2) comprises a limiting table (21), a sealing groove A (22), an oil duct A (23), a sealing groove B (24), an oil duct B (25), a guide shaft (26) and a sealing groove C (27) which are connected in sequence, a combined sealing ring is arranged in the sealing groove A (22), the sealing groove B (24) and the sealing groove C (27), and the combined sealing ring comprises an arched rubber ring (35) and a check ring (34);
the double-stage piston (3) comprises a handle fixing shaft (31), a low-pressure piston rod (32) and a high-pressure piston rod (33) which are connected in sequence.
2. Ultrahigh pressure double acting manual pump according to claim 1, characterized in that below the tank (7) is a base (8), the tank (7) being provided with a tank back cover (9) and a tank top cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911036235.5A CN110725784A (en) | 2019-10-29 | 2019-10-29 | Ultrahigh pressure double-acting manual pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911036235.5A CN110725784A (en) | 2019-10-29 | 2019-10-29 | Ultrahigh pressure double-acting manual pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110725784A true CN110725784A (en) | 2020-01-24 |
Family
ID=69222415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911036235.5A Pending CN110725784A (en) | 2019-10-29 | 2019-10-29 | Ultrahigh pressure double-acting manual pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110725784A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2183510A (en) * | 1937-11-01 | 1939-12-12 | Timken Roller Bearing Co | Fuel pump |
| CN206409373U (en) * | 2016-12-29 | 2017-08-15 | 太重煤机有限公司 | A kind of manual super-pressure pump |
| KR101940774B1 (en) * | 2018-09-20 | 2019-01-21 | (주)대진유압기계 | High and low pressure automatic interlocking Portable ultra high pressure hand hydraulic pump |
| CN109630372A (en) * | 2019-01-31 | 2019-04-16 | 浙江易普液压设备有限公司 | A kind of novel ultrahigh pressure type pilot hydraulic hand pump |
-
2019
- 2019-10-29 CN CN201911036235.5A patent/CN110725784A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2183510A (en) * | 1937-11-01 | 1939-12-12 | Timken Roller Bearing Co | Fuel pump |
| CN206409373U (en) * | 2016-12-29 | 2017-08-15 | 太重煤机有限公司 | A kind of manual super-pressure pump |
| KR101940774B1 (en) * | 2018-09-20 | 2019-01-21 | (주)대진유압기계 | High and low pressure automatic interlocking Portable ultra high pressure hand hydraulic pump |
| CN109630372A (en) * | 2019-01-31 | 2019-04-16 | 浙江易普液压设备有限公司 | A kind of novel ultrahigh pressure type pilot hydraulic hand pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200124 |
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| RJ01 | Rejection of invention patent application after publication |