CN211398100U - Direct-acting valve core type double-acting manual pump - Google Patents
Direct-acting valve core type double-acting manual pump Download PDFInfo
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- CN211398100U CN211398100U CN201921831628.0U CN201921831628U CN211398100U CN 211398100 U CN211398100 U CN 211398100U CN 201921831628 U CN201921831628 U CN 201921831628U CN 211398100 U CN211398100 U CN 211398100U
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- acting valve
- pressure
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 229920001971 elastomer Polymers 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000007306 turnover Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 36
- 238000010586 diagram Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model relates to a two effect hand pumps of direct action spool formula belongs to hydraulic pressure class instrument technical field that steps up. 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 utility model discloses can realize guaranteeing to realize the switching of realizing two oil circuit business turn over under the prerequisite that can export the superhigh pressure, pressurize stable performance after pressure reaches the target value, doublestage piston structure guarantees that the low pressure oil charge is rapid, and high pressure work is laborsaving has improved work efficiency greatly, practices thrift the human cost, and simple structure is light and handy, and the material is durable.
Description
Technical Field
The utility model relates to a hydraulic pressure class instrument technical field that steps up, concretely relates to direct acting valve core formula double-acting hand 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.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model relates to a structure is compacter, and the bearing capacity is stronger, the two effect hand pumps of direct action spool formula of telescopic two effect spools.
The technical scheme of the utility model as follows: a direct-acting valve core type double-acting manual pump comprises a double-acting structure, a working pressure rod and an oil tank; 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 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 utility model has the advantages as follows: the utility model discloses for original equipment, the biggest advantage lies in realizing guaranteeing to export the switching that realizes two oil circuits business turn over under the prerequisite of superhigh pressure, and pressure reaches the pressurize stable performance after the target value, and doublestage piston structure guarantees that the low pressure oil charge is rapid, and high-pressure work is laborsaving to have improved work efficiency greatly, practices thrift the human cost, and simple structure is light and handy, and the material is durable.
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 embodiments.
As shown in fig. 1-9, a direct-acting valve core type double-acting manual pump comprises a double-acting structure, a working pressure rod 11 and an oil tank 7; 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 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 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 unable high pressure of beating more than 150MPa of two effect hand pumps, the utility model discloses redesigned one set of two effect case structures and pertinence arrange one set of combined seal who can bear the superhigh pressure, combined seal is retaining ring 34 and rubber circle 35, rubber circle material be butadiene acrylonitrile rubber, combined seal arranges seal groove A, seal groove B, seal groove C in.
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 28; 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 utility model discloses a major product part divide into:
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 embodiments are provided for illustration and description of the invention and are not intended to limit the invention to the described embodiments. 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 more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed.
Claims (2)
1. A direct-acting valve core type double-acting manual pump is characterized by comprising a double-acting structure, a working pressure rod (11) and an oil tank (7); 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 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. Direct-acting spool double-acting manual pump according to claim 1, characterized in that below said tank (7) is a base (8), said tank (7) being provided with a tank rear cover (9) and a tank upper cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921831628.0U CN211398100U (en) | 2019-10-29 | 2019-10-29 | Direct-acting valve core type double-acting manual pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921831628.0U CN211398100U (en) | 2019-10-29 | 2019-10-29 | Direct-acting valve core type double-acting manual pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398100U true CN211398100U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921831628.0U Active CN211398100U (en) | 2019-10-29 | 2019-10-29 | Direct-acting valve core type double-acting manual pump |
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| Country | Link |
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| CN (1) | CN211398100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117227967A (en) * | 2023-11-14 | 2023-12-15 | 清航空天(北京)科技有限公司 | Method and device for controlling an aircraft, medium and aircraft |
-
2019
- 2019-10-29 CN CN201921831628.0U patent/CN211398100U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117227967A (en) * | 2023-11-14 | 2023-12-15 | 清航空天(北京)科技有限公司 | Method and device for controlling an aircraft, medium and aircraft |
| CN117227967B (en) * | 2023-11-14 | 2024-05-24 | 清航空天(北京)科技有限公司 | Method and device for controlling an aircraft, medium and aircraft |
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