CN105822757A - Balanced piston type hydraulic hand pump with functions of manual reversing and automatic reset - Google Patents
Balanced piston type hydraulic hand pump with functions of manual reversing and automatic reset Download PDFInfo
- Publication number
- CN105822757A CN105822757A CN201610363299.6A CN201610363299A CN105822757A CN 105822757 A CN105822757 A CN 105822757A CN 201610363299 A CN201610363299 A CN 201610363299A CN 105822757 A CN105822757 A CN 105822757A
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- Prior art keywords
- hand pump
- piston
- reversing valve
- valve core
- hydraulic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/0221—Selector apparatus for selecting modes, i.e. input device
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a balanced piston type hydraulic hand pump with functions of manual reversing and automatic reset. The balanced piston type hydraulic hand pump comprises a balanced piston type hydraulic hand pump body and a reversing valve. The hand pump body is provided with a balanced piston. The reversing valve may be regarded as an integrated structure composed of two two-position four-way reversing valve bodies, a guiding piston and a hand pump balance pressure relief valve body. According to the balanced piston type hydraulic hand pump with the functions of manual reversing and automatic reset, the design of the balanced piston is adopted, the area of the upper end surface and the area of the lower end surface of the piston are the same, and internal seal leakage of the reversing valve is avoided; pressure is introduced and guided into the hand pump through hydraulic oil, and the uncontrolled movement problem of the hand pump piston and a connecting rod is caused due to the fact that the stressed area of the upper end surface and the stressed area of the lower end surface of the hand pump piston are different; the design of the reversing valve guiding piston is also adopted, so that the reversing valve has the automatic reset function, that is, the reversing valve is automatically switched to an automatic gear under the command of a remote control system, and the defect that the valve cannot be remotely and automatically opened and closed due to the fact that the reversing valve is forgotten to be placed in the automatic gear is overcome; and the integrated design of the reversing valve bodies and the hand pump balance pressure relief valve body is further adopted, the hand pump piston can still move up and down when the reversing valve is in the automatic gear, and thus resetting of the hand pump and a hand pump operating handle is facilitated.
Description
Technical field
The present invention relates to a kind of hydraulic hand pump, more precisely, be the equilibrated type piston hydraulic hand pump of a kind of band manual reverse of direction and auto-reset function.
Background technology
Using the gas-liquid linkage actuator application scenario as valve actuator, needs possess using hydraulic hand pump as power source, thus realize the function of valve switch operation, to guarantee in the case of gas-liquid linkage actuator does not has external power supply, remain to operate valve switch.Meanwhile, this executor can also accept the instruction from remote automatic control system, automatically performs controlled valve operation.
For realizing the above-mentioned operation requirement to valve, need to realize manually, oil circuit switching when being automatically brought into operation, and need to realize the oil circuit switching of open and close valve.The major technique used at present is that changement (reversal valve operated with rotary handle) adds the mode of locking device and switches oil circuit；When needs use hand pump to carry out open and close valve, extract reversal valve handle, handle is rotated to corresponding manual valve opening from automatically controlling position or manually closes the gear of valve, again handle is advanced, i.e. complete the hands of oil circuit, the automatic and selection switching of open and close valve, then use the handle of hand pump to carry out the action of open and close valve to operate hand pump.The form of hand pump is generally piston pump.
Above-mentioned technology is disadvantageous in that:
1., when oil circuit is placed in the gear of manual valve opening or manual pass valve by reversal valve, remote automatic control system cannot operate valve closing (or opening).Particularly needing the occasion of urgent interlocking close valve, safety instrumented systems will be caused to lose efficacy, valve cannot be closed, and causes huge economic loss and security incident.
2. when oil circuit is placed in the gear of manual valve opening or manual pass valve by reversal valve, due to the operational order from remote automatic control system, make whole oil circuit with pressure, hydraulic oil will may conduct the lower chamber to hand pump by oil circuit, cause Hand pump piston and uncontrolled the moving up such as connecting rod, handle, cause security incident.
3. when reversal valve inner sealing leaks, pressure is conducted into hand pump by hydraulic oil, owing to Hand pump piston upper and lower end face lifting surface area is different, causes the uncontrolled movement of Hand pump piston and connecting rod.
Summary of the invention
The present invention mainly solves the technical problem existing for prior art, thus provides the equilibrated type piston hydraulic hand pump of a kind of band manual reverse of direction and auto-reset function.
The above-mentioned technical problem of the present invention is mainly addressed by following technical proposals:
A kind of equilibrated type piston hydraulic hands pump of band manual reverse of direction and auto-reset function, including equilibrated type piston hydraulic hand pump (hereinafter referred to as hand pump) and a reversal valve, hand pump is provided with hand pump first inlet port, one hand pump the second inlet port and proficiency pump out hydraulic fluid port, hand pump is connected with reversal valve by described suction/oil-out, hand pump is provided with a Hand pump piston, Hand pump piston upper and lower end face area identical and and size, on the identical piston of shape, connecting rod is connected with piston lower link, pump pressure lid on the other hand it is additionally provided with on hand pump, hand pump gland is provided with a pivoting lever, a clevis it is provided with movably on pivoting lever, in clevis and piston, connecting rod is flexibly connected；Reversal valve includes two groups of reversing valve cores of horizontal symmetry, hydraulic oil inlet, hydraulic oil outlet, reversing valve core manual gear runner, reversing valve core automatic transmission bit stream road and the runner that automatically resets；
Extracting reversing valve core is automatic gear, and hydraulic oil enters from hydraulic oil inlet under external power supply drives, and is flowed out from hydraulic oil outlet by reversing valve core automatic transmission bit stream road；Propelling reversing valve core is manual gear, by lifting the handle being connected with clevis, hydraulic oil is made to enter reversal valve from hydraulic oil inlet, it is inhaled into hand pump through inner flow passage, hand pump the second inlet port and hand pump the first inlet port, it is pressed downward against handle, hydraulic oil is handled and is pumped out hydraulic fluid port entrance reversal valve, through inner flow passage and reversing valve core manual gear runner, flows out from hydraulic oil outlet；
The top of reversal valve is additionally provided with a balance pressure releasing valve core, extract handle can make hand pump bypass so that hand pump returns to initial position, release handle automatically reset back balance pressure releasing valve core automatically fall off with cut off balance pressure release oil circuit；
The centre of reversing valve core is provided with a guide piston, guide piston can laterally free movement, in the case of reversing valve core is placed in manual gear, when the order that remote automatic control system sends makes oil circuit connect with external power supply thus be with pressure, high pressure liquid force feed enters commutation valve body from hydraulic oil inlet, through automatically reseting, runner enters the runner between guide piston and reversing valve core, and under the effect of oil pressure, the reversing valve core that will be located in manual gear is extrapolated to automatic gear.
As preferred embodiment of the present invention, described hand pump gland and piston are additionally provided with between connecting rod a hand pump stuffing-box.
As preferred embodiment of the present invention, the bottom of described piston lower link is additionally provided with a lower link protective cap.
As preferred embodiment of the present invention, connected by single ended bolt between described hand pump and reversal valve.
As preferred embodiment of the present invention, described Hand pump piston and piston are threaded between connecting rod, connect for resilient key between Hand pump piston and piston lower link.
As preferred embodiment of the present invention, the handle of described balance pressure releasing valve core passes through spring automatic reset.
The band manual reverse of direction of the present invention and the equilibrated type piston hydraulic hand pump of auto-reset function have the advantage that
1, make reversal valve when remote automatic control system sends operational order, automatically reset (being automatically returned to automatic gear by manual operation gear), it is to avoid make the valve cannot emergency shutdown owing to forgetting reversal valve is switched to automatic gear.
2, uncontrolled upwards (or downward) of the piston and connecting rod thereof that avoid hand pump moves.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the equilibrated type piston hydraulic hand pump of the band manual reverse of direction of the present invention and auto-reset function；
Fig. 2 is the sectional view in Fig. 1 along AA direction；
Fig. 3 is the sectional view in Fig. 1 along BB direction；
Fig. 4 is the sectional view in Fig. 1 along CC direction.
null[the 1. hand pump pump housing，2. hand pump gland，3. hand pump stuffing-box，4. clevis，5. pivoting lever，6. Hand pump piston，7. connecting rod on piston，8. piston lower link，9. lower link protective cap，10. hand pump the first inlet port (10A)、Hand pump oil-out (10B)，11. hand pump the second inlet ports，12. reversal valves，13. first reversing valve cores，14. second reversing valve cores，15. guide pistons，16. first hydraulic oil inlet，17. first hydraulic oil outlet，18. second hydraulic oil inlet，19. second hydraulic oil outlet，20. first automatically reset runner，21. second automatically reset runner，22. first reversing valve core manual gear runners，23. first reversing valve core automatic transmission bit stream roads，24. hand pump balance relief valves，25. second reversing valve core manual gear runners，26. second reversing valve core automatic transmission bit stream roads]
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention are made apparent clear and definite defining.
As Figure 1-Figure 4, a kind of equilibrated type piston hydraulic hands pump of band manual reverse of direction and auto-reset function, it is characterized in that, including equilibrated type piston hydraulic hand pump 1 and a reversal valve 12, hand pump 1 is provided with hand pump the first inlet port 10A, one hand pump the second inlet port 11 and proficiency pump out hydraulic fluid port 10B, hand pump 1 is connected with reversal valve 12 by described suction/oil-out, hand pump 1 is provided with a Hand pump piston 6, Hand pump piston 6 upper and lower end face area identical and and size, on the identical piston of shape, connecting rod 7 is connected with piston lower link 8, pump pressure lid 2 on the other hand it is additionally provided with on hand pump 1, hand pump gland 2 is provided with a pivoting lever 5, a clevis 4 it is provided with movably on pivoting lever 5, in clevis 4 and piston, connecting rod 7 is flexibly connected；Reversal valve 12 includes that first the 23, second reversing valve core automatic transmission bit stream road, reversing valve core the 13, second reversing valve core the 14, first hydraulic oil inlet the 16, second hydraulic oil inlet the 18, first hydraulic oil outlet the 17, second hydraulic oil outlet the 19, first reversing valve core manual gear runner the 22, second reversing valve core manual gear runner the 25, first reversing valve core automatic transmission bit stream road 26, first of horizontal symmetry runner 20 and second that automatically resets automatically resets runner 21；
Extract the first reversing valve core 13 and the second reversing valve core 14 is automatic gear, hydraulic oil enters from the first hydraulic oil inlet 16 or the second hydraulic oil inlet 18 under external power supply drives, and is flowed out from the first hydraulic oil outlet 17 or the second hydraulic oil outlet 19 by the first reversing valve core automatic transmission bit stream road 23 or the second reversing valve core automatic transmission bit stream road 26；Advancing the first reversing valve core 13 or the second reversing valve core 14 is manual gear, by lifting the handle being connected with clevis 4, hydraulic oil is made to enter reversal valve 12 from the first hydraulic oil inlet 16 or the second hydraulic oil inlet 18, it is inhaled into hand pump 1 through inner flow passage, hand pump the second inlet port 11 and hand pump the first inlet port 10A, it is pressed downward against handle, hydraulic oil is handled and is pumped out hydraulic fluid port 10B entrance reversal valve 12, through inner flow passage and the first reversing valve core manual gear runner 22 or the second reversing valve core manual gear runner 25, flow out from the first hydraulic oil outlet 17 or the second hydraulic oil outlet 19；
The top of reversal valve 12 is additionally provided with a balance pressure releasing valve core 24, extract handle can make hand pump bypass so that hand pump returns to initial position, release handle automatically reset back balance pressure releasing valve core automatically fall off with cut off balance pressure release oil circuit；
The centre of the first reversing valve core 13 and the second reversing valve core 14 is provided with a guide piston 15, guide piston 15 can laterally free movement, in the case of the first reversing valve core 13 or the second reversing valve core 14 are placed in manual gear, when the order that remote automatic control system sends makes oil circuit connect with external power supply thus be with pressure, high pressure liquid force feed enters commutation valve body 12 from the first hydraulic oil inlet 16 or the second hydraulic oil inlet 18, the runner between guide piston 15 and the first reversing valve core 13 or the second reversing valve core 14 is entered through first runner 20 or the second runner 21 that automatically resets that automatically resets, under the effect of oil pressure, the first reversing valve core 13 or the second reversing valve core 14 that will be located in manual gear are extrapolated to automatic gear.
As to further improvement of the present invention, described hand pump gland 2 and piston are additionally provided with between connecting rod 7 a hand pump stuffing-box 3.
As to further improvement of the present invention, the bottom of described piston lower link 8 is additionally provided with a lower link protective cap 9.
As to further improvement of the present invention, connected by single ended bolt between described hand pump 1 and reversal valve 12.
As to further improvement of the present invention, described Hand pump piston 6 and piston are threaded between connecting rod 7, connect for resilient key between Hand pump piston 6 and piston lower link 8.
As to further improvement of the present invention, the handle of described balance pressure releasing valve core 24 passes through spring automatic reset.
The band manual reverse of direction of this invention and the equilibrated type piston hydraulic hand pump of auto-reset function have the advantage that
1, make reversal valve when remote automatic control system sends operational order, automatically reset (being automatically returned to automatic gear by manual operation gear), it is to avoid make the valve cannot emergency shutdown owing to forgetting reversal valve is switched to automatic gear.
2, uncontrolled upwards (or downward) of the piston and connecting rod thereof that avoid hand pump moves.
The mentality of designing of the present invention is below described the most in one embodiment, and in the case of system allows, the present invention can expand to the most external more functional module, thus extends its function to greatest extent.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any change expected without creative work or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims are limited.
Claims (6)
- null1. the equilibrated type piston hydraulic hand pump of a band manual reverse of direction and auto-reset function，It is characterized in that，Including equilibrated type piston hydraulic hand pump (1) and a reversal valve (12),Hand pump (1) is provided with a hand pump the first inlet port (10A)、One hand pump the second inlet port (11) and proficiency pump out hydraulic fluid port (10B)，Hand pump (1) is connected with reversal valve (12) by described suction/oil-out，Hand pump (1) is provided with a Hand pump piston (6)，Hand pump piston (6) upper and lower end face area is identical and and size、On the identical piston of shape, connecting rod (7) is connected with piston lower link (8)，Pump pressure lid (2) on the other hand it is additionally provided with on hand pump (1)，Hand pump gland (2) is provided with a pivoting lever (5)，A clevis (4) it is provided with movably on pivoting lever (5)，In clevis (4) and piston, connecting rod (7) is flexibly connected；Reversal valve (12) includes the reversing valve core (13,14) of horizontal symmetry, hydraulic oil inlet (16,18), hydraulic oil outlet (17,19), reversing valve core manual gear runner (22,25), reversing valve core automatic transmission bit stream road (23,26) and the runner that automatically resets (20,21)；Extracting reversing valve core (13,14) is automatic gear, and hydraulic oil enters from hydraulic oil inlet (16,18) under external power supply drives, and is flowed out from hydraulic oil outlet (17,19) by reversing valve core automatic transmission bit stream road (23,26)；Advance reversing valve core (13,14) it is manual gear, by lifting the handle being connected with clevis (4), make hydraulic oil from hydraulic oil inlet (16,18) reversal valve (12) is entered, it is inhaled into hand pump (1) through inner flow passage, hand pump the second inlet port (11) and hand pump the first inlet port (10A), it is pressed downward against handle, hydraulic oil is handled and is pumped out hydraulic fluid port (10B) entrance reversal valve (12), through inner flow passage and reversing valve core manual gear runner (22,25), flow out from hydraulic oil outlet (17,19)；The top of reversal valve (12) is additionally provided with a balance pressure releasing valve core (24), extract handle can make hand pump bypass so that hand pump returns to initial position, release handle automatically reset back balance pressure releasing valve core automatically fall off with cut off balance pressure release oil circuit；Reversing valve core (13, 14) centre is provided with a guide piston (15), guide piston (15) can laterally free movement, at reversing valve core (13, 14) in the case of being placed in manual gear, when the order that remote automatic control system sends makes oil circuit connect with external power supply thus be with pressure, high pressure liquid force feed is from hydraulic oil inlet (16, 18) commutation valve body (12) is entered, through the runner (20 that automatically resets, 21) guide piston (15) and reversing valve core (13 are entered, 14) runner between, under the effect of oil pressure, will be located in the reversing valve core (13 of manual gear, 14) extrapolated to automatic gear.
- The equilibrated type piston hydraulic hand pump of band manual reverse of direction the most according to claim 1 and auto-reset function, it is characterised in that be additionally provided with a hand pump stuffing-box (3) on described hand pump gland (2) and piston between connecting rod (7).
- The equilibrated type piston hydraulic hand pump of band manual reverse of direction the most according to claim 2 and auto-reset function, it is characterised in that the bottom of described piston lower link (8) is additionally provided with a lower link protective cap (9).
- The equilibrated type piston hydraulic hand pump of band manual reverse of direction the most according to claim 3 and auto-reset function, it is characterised in that connected by single ended bolt between described hand pump (1) and reversal valve (12).
- The equilibrated type piston hydraulic hand pump of band manual reverse of direction the most according to claim 4 and auto-reset function, it is characterized in that, it is threaded between connecting rod (7) on described Hand pump piston (6) and piston, connects for resilient key between Hand pump piston (6) and piston lower link (8).
- The equilibrated type piston hydraulic hand pump of band manual reverse of direction the most according to claim 5 and auto-reset function, it is characterised in that the handle of described balance pressure releasing valve core (24) passes through spring automatic reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363299.6A CN105822757B (en) | 2016-05-26 | 2016-05-26 | A kind of balanced type piston hydraulic hand pump with manual reverse of direction and auto-reset function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363299.6A CN105822757B (en) | 2016-05-26 | 2016-05-26 | A kind of balanced type piston hydraulic hand pump with manual reverse of direction and auto-reset function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822757A true CN105822757A (en) | 2016-08-03 |
| CN105822757B CN105822757B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610363299.6A Active CN105822757B (en) | 2016-05-26 | 2016-05-26 | A kind of balanced type piston hydraulic hand pump with manual reverse of direction and auto-reset function |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204350U (en) * | 1986-06-18 | 1987-08-05 | 江苏省煤矿机械制造公司 | Manual hydraulic oil pump |
| CN2237737Y (en) * | 1994-12-28 | 1996-10-16 | 西安仪表厂 | Hand-hydraulic pump |
| CN2615367Y (en) * | 2003-01-22 | 2004-05-12 | 扬州威斯特机电有限公司 | Hand-operated pump |
| US20050180806A1 (en) * | 2004-02-12 | 2005-08-18 | Lawrence Green | Manual pump mechanism and delivery system |
| CN201420729Y (en) * | 2009-05-15 | 2010-03-10 | 上海贺菩机械制造有限公司 | Electric hydraulic torque wrench pump |
| CN103203709A (en) * | 2013-04-18 | 2013-07-17 | 重庆鼎誉机电有限公司 | Hydraulic wrench |
| CN205654852U (en) * | 2016-05-26 | 2016-10-19 | 江苏兰格特自动化设备有限公司 | Take balanced type piston hydraulic hand pump of manual switching -over and automatic re -setting function |
-
2016
- 2016-05-26 CN CN201610363299.6A patent/CN105822757B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204350U (en) * | 1986-06-18 | 1987-08-05 | 江苏省煤矿机械制造公司 | Manual hydraulic oil pump |
| CN2237737Y (en) * | 1994-12-28 | 1996-10-16 | 西安仪表厂 | Hand-hydraulic pump |
| CN2615367Y (en) * | 2003-01-22 | 2004-05-12 | 扬州威斯特机电有限公司 | Hand-operated pump |
| US20050180806A1 (en) * | 2004-02-12 | 2005-08-18 | Lawrence Green | Manual pump mechanism and delivery system |
| CN201420729Y (en) * | 2009-05-15 | 2010-03-10 | 上海贺菩机械制造有限公司 | Electric hydraulic torque wrench pump |
| CN103203709A (en) * | 2013-04-18 | 2013-07-17 | 重庆鼎誉机电有限公司 | Hydraulic wrench |
| CN205654852U (en) * | 2016-05-26 | 2016-10-19 | 江苏兰格特自动化设备有限公司 | Take balanced type piston hydraulic hand pump of manual switching -over and automatic re -setting function |
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| Publication number | Publication date |
|---|---|
| CN105822757B (en) | 2017-12-19 |
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