CN206985594U - Unloaded quick lifting Horizontal hydraulic jack - Google Patents

Abstract

A kind of unloaded quick lifting Horizontal hydraulic jack, including pedestal, set oil storage chamber oil road, high-voltage oil cavity oil input channel, oil pump and enter oil road, safety valve draining road, high-voltage oil cavity back oil road, oil return valve back oil road and oil storage chamber back oil road thereon；Oil cylinder mechanism, it is located at the left side of pedestal；High-pressure oil pump, it is located at the right side of pedestal；Oil pump enters oil road control valve, is located on pedestal；Oil return valve, the right side of pedestal is located at, is communicated with high-voltage oil cavity back oil road and oil return valve back oil road；Safety valve, it is located on pedestal and enters oil road with oil pump and safety valve draining road communicates；Back oil road control valve, is located in pedestal, feature：The fuel-displaced repairing road of oil storage chamber and high-voltage oil cavity oil-feed repairing road are also set on pedestal, the fuel-displaced repairing road of oil storage chamber and high-voltage oil cavity oil-feed repairing road communicate with back oil road control valve, and oil cylinder mechanism repairing road fuel-displaced with oil storage chamber and high-voltage oil cavity oil-feed repairing road communicate.Improve operating efficiency；Ensure security；Embody good globality and concise effect.

Description

Unloaded quick lifting Horizontal hydraulic jack

Technical field

The utility model belongs to hydraulic jack technical field, and in particular to a kind of unloaded quick lifting horizontal hydraulic is very heavy Top.

Background technology

Horizontal hydraulic jack is no lack of in published Chinese patent literature to be seen in, slightly with enumerate as：Utility model It is rotatable horizontal that what horizontal hydraulic jack, the CN2396020Y of license notification number CN2344375Y recommendations were provided presses hand Adjustable hydraulic jack that Multifunction horizontal jack disclosed in hydraulic jack, CN2474513Y, CN2787634Y are disclosed, The public all hydraulic pressure thousand for showing load and overload warning of Horizontal lower-level jack, CN201520617U of CN2839233Y disclosures Jin top, a kind of Horizontal hydraulic jack with self-locking safety device of CN201756434U teachings, CN201737648U publicities The quick low level wheel type hydraulic jack of wallboard monoblock type a kind of, the CN202245915U horizontal hydraulic jacks introduced rise Horizontal hydraulic jack that weighing arm device and invention patent mandate notification number CN102275846B are recommended, etc..

Foregoing zero load is quickly lifted it was found from its word face lexical or textual analysis：Piston rod quickly stretches out the oil of oil cylinder in the unloaded state Cylinder sleeve drives crane arm（Also referred to as crane boom）Base portion fast rotation, make the free end i.e. load carrier of end positioned at crane arm Such as pallet or jacking block within the extremely short time and by lifting object such as vehicle contact, so as to shorten empty stroke time, raising Operating efficiency.

The technical information of the quick lifting Horizontal hydraulic jack of foregoing zero load equally can be in disclosed Chinese patent literature In be seen in, such as CN2516526Y（The hydraulic jack of unloaded high raising speed can be made by mechanical operation）And CN2652906Y（Three Lift device in the top of Duan Yangsheng speed）.Typical " the qigong hydraulic pressure with unloaded fast servo function recommended such as CN103466498B Jack ", although the patent formula can embody the realizing quick lifting in zero load of the 0015th section of its specification record and by With improve operating efficiency and in load realize jack at a slow speed and use improve security performance strong point.But by being said to it The description that the 0024th section of bright book is understood, because it is to realize unloaded fast servo by the qigong and the principle that hydraulic pressure mutually helps, because And pure hydraulic jack is not it.Especially, Horizontal hydraulic jack structure can not only be increased by the qigong and hydraulic pressure being had both Complexity and volume is significantly increased, and influence overall uniformity and concise effect.

For above-mentioned prior art, the applicant has made beneficial design, forms technology described below finally Scheme and in the case where taking secrecy provision through computer simulate deduce experiment be proved to be practicable.

The content of the invention

Task of the present utility model is that providing one kind helps only to need once-through operation that idle stroke can disappear in zero load Remove and use and improve operating efficiency, be advantageous to meet to jack at a slow speed and use and guarantee safety and be beneficial to abandon gas in load Work(booster and use the quick lifting Horizontal hydraulic jack of zero load for embodying good globality and concise effect.

What task of the present utility model was performed by, a kind of unloaded quick lifting Horizontal hydraulic jack, including one Pedestal, oil storage chamber oil road, high-voltage oil cavity oil input channel, oil pump are offered on the base and enters oil road, safety valve draining road, height Pumping cavity back oil road, oil return valve back oil road and oil storage chamber back oil road；One oil cylinder mechanism, the oil cylinder mechanism are arranged on the pedestal Left side and with described oil storage chamber oil road, high-voltage oil cavity oil input channel, safety valve draining road, high-voltage oil cavity back oil road and store oil Chamber back oil road communicates；One high-pressure oil pump, the high-pressure oil pump are arranged on the right side of the pedestal, and enter with described oil pump fuel-displaced Road communicates；One oil pump enters oil road control valve, the oil pump enter oil road control valve be arranged on the pedestal and with it is described Oil storage chamber oil road, high-voltage oil cavity oil input channel and oil pump enter oil road and communicated；One oil return valve, the oil return valve are arranged on the base The right side of seat and corresponding to the top of high-pressure oil pump, the oil return valve and the height in the state of parallel with the high-pressure oil pump Pumping cavity back oil road and oil return valve back oil road communicate；One safety valve, the safety valve be arranged on the pedestal and with it is described Oil pump enters oil road and safety valve draining road communicates；One back oil road control valve, the back oil road control valve is corresponding to described time Position between fuel tap back oil road and oil storage chamber back oil road is arranged in the pedestal, is characterised by also opening up on the pedestal There are the fuel-displaced repairing road of an oil storage chamber and a high-voltage oil cavity oil-feed repairing road, the fuel-displaced repairing road of the oil storage chamber and high-voltage oil cavity oil-feed are mended Oil duct communicates with described back oil road control valve, and described oil cylinder mechanism repairing road fuel-displaced with oil storage chamber and a high-voltage oil cavity enter Oily repairing road communicates.

In a specific embodiment of the present utility model, described oil cylinder mechanism includes outer cylinder sheath, inner cylinder liner, work Plug, oil cylinder post and cylinder cap, the left end outer wall sealing of the left end and inner cylinder liner of outer cylinder sheath are fixed, and the left side of right-hand member and the pedestal is close Sealing is determined, and inner cylinder liner is located in outer cylinder sheath, and left end and the cylinder cap sealing of the inner cylinder liner are fixed, and the left side of right-hand member and pedestal seals Fixed, the space between inside and outside cylinder sleeve is configured to oil storage chamber, the oil storage chamber and the oil storage chamber oil road, safety valve draining road, Oil storage chamber back oil road and the fuel-displaced repairing road of described oil storage chamber communicate, and piston is movably arranged on the inner cylinder liner of inner cylinder liner In plunger shaft, piston packing is provided with the outer wall of the piston, the piston packing and the cavity wall of inner cylinder liner plunger shaft are close Envelope coordinates, and oil cylinder post, which corresponds on the left of piston, to be arranged in inner cylinder liner plunger shaft and with being engaged on the left of piston, the oil cylinder The cylinder cap oil cylinder post pilot hole of middle position of the left end of post with being opened in cylinder cap is slidably matched, and is oriented in cylinder cap oil cylinder post Be embedded with oil cylinder column sealing circle on the hole wall in hole, oil cylinder post coordinates with oil cylinder column sealing circle sealing, the right side of the piston with Space between the pedestal is configured to high-voltage oil cavity, and the high-voltage oil cavity returns with described high-voltage oil cavity oil input channel, high-voltage oil cavity Oil duct and described high-voltage oil cavity oil-feed repairing road communicate, on the pedestal and in the position corresponding to the high-pressure oil pump Put and offer a push rod guide sleeve hole, the push rod guide sleeve hole communicates with the high-voltage oil cavity, and high-pressure oil pump is corresponding to push rod The position of guide sleeve hole is to the piston effect.

In another specific embodiment of the present utility model, described high-pressure oil pump include the pump housing, pump core, push rod, Pump core spring and push rod guide sleeve, the right side of the pump housing and the pedestal are fixed, and there is the pump housing pump core to be slidably matched chamber, at this Pump core, which is slidably matched in the cavity wall of chamber and offers a pump housing in the position for entering oil road corresponding to the oil pump, enters oil outlet, The pump housing, which enters oil outlet and enters oil road with oil pump, to be communicated, and pump core and the pump core chamber that is slidably matched are slidably matched, and the pump core is towards pump core The side of spring, which is formed, a pump core spring-loaded chamber, and push rod is arranged on pump core and is slidably matched intracavitary, and push rod guide sleeve is corresponding The left end of push rod is arranged in the position of the push rod guide sleeve hole, and is kept off by the guide sleeve for the left end end for being arranged on push rod Circle stops that pump core spring is nested with push rod, and the left end of the pump core spring is supported on side of the push rod guide sleeve towards pump core, and The right-hand member of pump core spring is supported on the bottom of chamber wall of pump core spring-loaded chamber, when direction displacement of the pump core to push rod guide sleeve, The push rod guide sleeve described in pump core makes push rod approach enters the high-voltage oil cavity and promotes the piston to make oil by piston to left dislocation Cylinder post stretches to outside the cylinder cap oil cylinder post pilot hole of the cylinder cap, and the fluid in the oil storage chamber is fuel-displaced through the oil storage chamber successively Road, oil pump enter oil road control valve and high-voltage oil cavity oil input channel enters the high-voltage oil cavity, meanwhile, the fluid in oil storage chamber is successively Enter high-voltage oil cavity through the fuel-displaced repairing road of the oil storage chamber, back oil road control valve and high-voltage oil cavity oil-feed repairing road.

In another specific embodiment of the present utility model, on described pedestal and corresponding to described oil The position that pump enters oil road control valve offers oil pump with longitudinal state and enters oil road control valve receiving hole, enters in the oil pump fuel-displaced The bottom of road control valve receiving hole is extended with the small steel of oil pump oil input channel that a diameter enters oil road control valve receiving hole less than oil pump Ball receiving hole, the oil pump, which enters oil road control valve, includes oily stifled, the high-voltage oil cavity oil input channel big steel ball bullet of high-voltage oil cavity oil input channel Spring, high-voltage oil cavity oil input channel big steel ball, high-voltage oil cavity oil input channel small ball spring and high-voltage oil cavity oil input channel small ball, hydraulic oil Chamber oil input channel small ball is arranged on the bottom of oil pump oil input channel small ball receiving hole, and high-voltage oil cavity oil input channel small ball spring is set In oil pump oil input channel small ball receiving hole, the upper end of the high-voltage oil cavity oil input channel small ball spring is supported on high-voltage oil cavity oil-feed On road big steel ball, and lower end is supported on high-voltage oil cavity oil input channel small ball, and high-voltage oil cavity oil input channel big steel ball is arranged on oil pump Enter the bottom of oil road control valve receiving hole, the upper end of high-voltage oil cavity oil input channel big steel ball spring is supported on high-voltage oil cavity oil input channel Oil is blocked, and lower end is nested with high-voltage oil cavity oil input channel big steel ball spring bearing housing, the high-voltage oil cavity oil input channel big steel ball bullet Spring fulcrum bearing is supported on high-voltage oil cavity oil input channel big steel ball, and high-voltage oil cavity oil input channel oil is stifled to enter oil road control valve appearance with oil pump Receiving the top orifice part position in hole is screwed, and described oil storage chamber oil road is under corresponding to high-voltage oil cavity oil input channel small ball The position of side communicates with the oil pump oil input channel small ball receiving hole, and the high-voltage oil cavity oil input channel enters oil road with the oil pump Control valve receiving hole communicates, and the oil pump enters oil road in the top corresponding to high-voltage oil cavity oil input channel small ball and high-voltage oil cavity Position between the lower section of oil input channel big steel ball communicates with the oil pump oil input channel small ball receiving hole.

In another specific embodiment of the present utility model, on described pedestal and corresponding to the oil return The position of valve offers oil return valve mounting hole with horizontality, and described oil return valve includes oil return valve body, oil return valve valve rod, returned Position spring, oil return valve steel ball, little spring, transition spring, spring base and supporting bead, the left end of oil return valve body probe into described return Fixed in fuel tap mounting hole with pedestal, the oil return valve body has an oil return valve valve-rod cavity, the left side corresponding to oil return valve valve-rod cavity One oil return valve steel ball chamber of side and corresponding to the spring-leaf retainer chamber on the left of oil return valve steel ball chamber, and at the middle part of oil return valve body An oil return inclined hole is offered, one end of the oil return inclined hole communicates with oil return valve valve-rod cavity, and the other end is with being formed in oil return valve body Middle part outer wall and the hole wall of oil return valve mounting hole between oil return valve body oil back chamber communicate, and the oil return valve body oil back chamber Communicate with described oil return valve back oil road, formed once between the left end of oil return valve body and the hole wall of oil return valve mounting hole Fuel tap valve body oil suction chamber, the oil return valve body oil suction chamber communicates with described high-voltage oil cavity back oil road, and oil return valve body enters Obstructed between oil pocket and the oil return valve body oil back chamber by spacer ring, oil return valve valve rod slides with oil return valve valve-rod cavity matches somebody with somebody Close, return spring is located in oil return valve valve-rod cavity and is nested with oil return valve valve rod, and oil return valve steel ball and little spring are set In oil return valve steel ball intracavitary, and little spring is located at the left side of oil return valve steel ball, and one end of the little spring is supported on supporting bead On, and the other end is supported on oil return valve steel ball, and spring base is arranged on described spring-leaf retainer intracavitary, supporting bead corresponding to The position in the left side of spring base is arranged on spring-leaf retainer intracavitary, and transition spring is corresponding to the position between spring base and supporting bead Put and be arranged on spring-leaf retainer intracavitary, one end of the transition spring is supported on spring base, and the other end is supported on supporting bead, institute The oil return valve body oil suction chamber stated is by connecting the oil canal between the spring base and supporting bead and described oil return valve steel Spherical cavity communicates, and the oil return valve steel ball chamber opens the state of oil return valve steel ball on the valve rod thimble top that the left end of oil return valve valve rod extends It is lower to be communicated with oil return valve valve-rod cavity.

In an also specific embodiment of the present utility model, on the pedestal and corresponding to the safety The position of valve offers a safety valve installation cavity with longitudinal state, and described safety valve includes safety valve steel ball, safety valve spring Blocked up with safe valve oil, safety valve steel ball is arranged on the bottom of safety valve installation cavity, and safe valve oil is got lodged in be installed corresponding to safety valve The position on the top of chamber coordinates with the base thread to be fixed, and safety valve spring is located at safety valve steel ball and blocks up it with safe valve oil Between, the upper end of the safety valve spring is supported on safe valve oil and blocked, and lower end is nested with safety valve spring fulcrum bearing, safety valve Spring bearing housing is supported on safety valve steel ball, and described oil pump enters oil road in the position of the bottom corresponding to safety valve steel ball Communicated with safety valve installation cavity, the safety valve draining road is installed in the position of the top corresponding to safety valve steel ball and safety valve Chamber communicates.

Of the present utility model more and in a specific embodiment, on the pedestal and corresponding to the oil return The position of road control valve offers a back oil road control valve installation cavity with longitudinal state, and in the back oil road control valve installation cavity Bottom be extended with the small ball chamber that a diameter is less than back oil road control valve installation cavity, described back oil road control valve includes oil return Small ball, oil return small ball spring, oil return big steel ball, pressure ball post and oil return oil are stifled, and oil return small ball is arranged on small ball chamber Bottom, oil return small ball spring are arranged on small ball intracavitary, and the upper end of the oil return small ball spring is supported on oil return big steel ball, And lower end is supported on oil return small ball, oil return big steel ball is arranged in back oil road control valve installation cavity, and oil return oil is got lodged in correspondingly Coordinate in the position on the top of back oil road control valve installation cavity and base thread and fix, it is stifled big with oil return that pressure ball post is located at oil return oil Between steel ball, the fuel-displaced repairing road of described oil storage chamber is in the position of the lower section corresponding to oil return small ball and the small ball chamber Bottom communicates, described high-voltage oil cavity oil-feed repairing road corresponding to the position between oil return small ball and oil return big steel ball with it is small Steel ball chamber communicates, and described oil return valve back oil road and described oil storage chamber back oil road are in the top corresponding to oil return big steel ball Position communicates with back oil road control valve installation cavity.

In an of the present utility model and then specific embodiment, it is embedded with and pushes away on the outer wall of the push rod guide sleeve Bar guide sleeve exterior seal ring, and push rod guide sleeve inner seal ring is embedded with the inwall of push rod guide sleeve, outside push rod guide sleeve Sealing ring coordinates with push rod guide sleeve hole sealing, and push rod guide sleeve inner seal ring coordinates with push rod seal.

Of the present utility model and more and in a specific embodiment, in the oil storage chamber oil road towards the store oil The port position of one end of chamber is provided with an oil storage chamber oil road oil cleaner screen.

It is of the present utility model and and then a specific embodiment in, in the oil return valve body oil suction chamber and The position in the left side of the spring base is provided with an oil canal oil screen pack.

Technical scheme provided by the utility model on pedestal due to being additionally arranged the store oil communicated with back oil road control valve The fuel-displaced repairing road of chamber and a high-voltage oil cavity oil-feed repairing road, thus high-voltage oil cavity oil-feed can be cooperateed with by high-voltage oil cavity oil-feed repairing road To the high-voltage oil cavity fuel feeding of oil cylinder mechanism, realize only needs once-through operation to eliminate idle stroke in zero load, efficiently contributes in road Improve operating efficiency；Because in load, high-pressure oil pump can meet fuel feeding requirement at a slow speed, it can thus be ensured that security；Due to abandoning Pneumatic booster in prior art, thus emerge from good globality and concise effect.

Brief description of the drawings

Fig. 1 is example structure of the present utility model and oil channel structures figure.

Fig. 2 is that oil cylinder mechanism, high-pressure oil pump, oil pump shown in Fig. 1 enter oil road control valve, oil return valve, safety valve and returned Oil duct control valve is arranged on the detailed structure view on pedestal.

Fig. 3 is the sectional view of the pedestal 1 shown in Fig. 2.

Fig. 4 is Fig. 3 A-A sectional views.

Fig. 5 is Fig. 4 A portions enlarged drawing.

Fig. 6 is Fig. 3 B-B sectional views.

Fig. 7 is Fig. 3 C-C sectional views.

Fig. 8 is schematic diagram of the operating mechanism to oil return valve action.

Fig. 9 is application examples schematic diagram of the present utility model.

Embodiment

In order to which the technical essence of the utility model and beneficial effect is more clearly understood, applicant is below with reality The mode for applying example elaborates, but the description to embodiment is not the limitation to the utility model, any foundation The made only formal rather than substantial equivalent transformation of the utility model design is regarded as of the present utility model Technical scheme category.

The concept of the every directionality for being related to left and right etc or directionality is all with shown in Fig. 4 in the following description Location status for, thus can not be understood as being particularly limited to technical scheme provided by the utility model.

Fig. 1 is referred to, shows a pedestal 1（Also can claim " base ", it is as follows）, oil storage chamber is offered on the pedestal 1 Oil road 11a, high-voltage oil cavity oil input channel 11b, oil pump enter oil road 11c, safety valve draining road 11d, high-voltage oil cavity back oil road 11e, oil return valve back oil road 11f and oil storage chamber back oil road 11g；An oil cylinder mechanism 2 is shown, the oil cylinder mechanism 2 is arranged on foregoing The left side of pedestal 1 and with foregoing oil storage chamber oil road 11a, high-voltage oil cavity oil input channel 11b, safety valve draining road 11d, high pressure Oil pocket back oil road 11e and oil storage chamber back oil road 11g, which is communicated, shows a high-pressure oil pump 3, and the high-pressure oil pump 3 is arranged on foregoing pedestal 1 right side, and enter oil road 11c with foregoing oil pump and communicate；Show that an oil pump enters oil road control valve 4, the oil pump enters Oil road control valve 4 be arranged on foregoing pedestal 1 and with foregoing oil storage chamber oil road 11a, high-voltage oil cavity oil input channel 11b with And oil pump enters oil road 11c and communicated；Show an oil return valve 5, the oil return valve 5 be arranged on the right side of foregoing pedestal 1 and with Correspond to the top of high-pressure oil pump 3, the oil return valve 5 and foregoing high-voltage oil cavity back oil road in the state of foregoing high-pressure oil pump 3 is parallel 11e and oil return valve back oil road 11f are communicated；Show a safety valve 6, the safety valve 6 be arranged on foregoing pedestal 1 and with it is preceding State that oil pump enters oil road 11c and safety valve draining road 11d is communicated；One back oil road control valve 7, the back oil road control valve 7 is right Position that should be between foregoing oil return valve back oil road 11f and oil storage chamber back oil road 11g is arranged in foregoing pedestal 1.

Continue to see Fig. 1, the technical essential as technical scheme provided by the utility model：Also opened up on foregoing pedestal 1 There are the fuel-displaced repairing road 12a of an oil storage chamber and a high-voltage oil cavity oil-feed repairing road 12b, the fuel-displaced repairing road 12a of the oil storage chamber and high pressure Oil pocket oil-feed repairing road 12b communicates with foregoing back oil road control valve 7, foregoing oil cylinder mechanism 2 and the fuel-displaced repairing of oil storage chamber Road 12a and a high-voltage oil cavity oil-feed repairing road 12b are communicated.

Refer to Fig. 2, Fig. 4, Fig. 6 and Fig. 7 and combine Fig. 1, foregoing oil cylinder mechanism 2 includes outer cylinder sheath 21, inner cylinder liner 22nd, piston 23, oil cylinder post 24 and cylinder cap 25, the left end of outer cylinder sheath 21 are fixed with the left end outer wall sealing of inner cylinder liner 22（It is preferred that adopt With welding）, the left side sealing fixation of the right-hand member of outer cylinder sheath 21 and foregoing pedestal 1（It is preferred that using welding or screw thread mating）, outside A plug cock 211 is equipped on cylinder sleeve 21（Fig. 4 shows）Inner cylinder liner 22 is located in outer cylinder sheath 21, and the left end of the inner cylinder liner 22 passes through screw thread Docked mode and the outer wall sealing of cylinder cap 25 are fixed, and the left side sealing of the right-hand member of inner cylinder liner 22 and pedestal 1 is fixed, inside and outside cylinder Space between set 21,22 is configured to oil storage chamber 26, the oil storage chamber 26 and foregoing oil storage chamber oil road 11a, safety valve draining road 11d, oil storage chamber back oil road 11g and the fuel-displaced repairing road 12a of foregoing oil storage chamber are communicated, and piston 23 is movably arranged on interior In the inner cylinder liner plunger shaft 221 of cylinder sleeve 22, piston packing 231 is provided with the outer wall of the piston 23, the piston packing 231 coordinate with the sealing of the cavity wall of inner cylinder liner plunger shaft 221, and guide ring 232 is additionally provided with the outer wall of piston 23（Fig. 4 shows）, The inwall of the guide ring 232 and inner cylinder liner 22 is to be slidably matched with the cavity wall of the inner cylinder liner plunger shaft 221 of inner cylinder liner 22, oil cylinder post 24, which correspond to the left side of piston 23, is arranged in inner cylinder liner plunger shaft 221 and is engaged with the left side of piston 23, the oil cylinder post 24 The cylinder cap oil cylinder post pilot hole 251 of middle position of the left end with being opened in cylinder cap 25 be slidably matched, and in cylinder cap oil cylinder post Oil cylinder column sealing circle 2511 is embedded with the hole wall of pilot hole 251, oil cylinder post 24 coordinates with the oil cylinder column sealing circle 2511 sealing, Also there is an oil cylinder column cap 241 in the left end of oil cylinder post 24, and between foregoing cylinder cap 25 and the left end end of inner cylinder liner 22 It is additionally provided with a cylinder cap sealing ring 252（Fig. 4 shows）, on the hole wall of the cylinder cap oil cylinder post pilot hole 251 of cylinder cap 25 and right An oil cylinder post guide ring 253, oil cylinder post 24 and the oil cylinder post should be also embedded with the position in the left side of oil cylinder column sealing circle 2511 Guide ring 253 is slidably matched.Space between the right side of foregoing piston 23 and foregoing pedestal 1 is configured to high-voltage oil cavity 27, the height Pumping cavity 27 and foregoing hydraulic oil oil input channel 11b, hydraulic oil back oil road 11e and foregoing hydraulic oil oil-feed repairing road 12b Communicate, a push rod guide sleeve hole 13 is offered on foregoing pedestal 1 and in the position corresponding to foregoing high-pressure oil pump 3, this is pushed away Bar guide sleeve hole 13 communicates with foregoing high-voltage oil cavity 27, and high-pressure oil pump 3 is in the position corresponding to push rod guide sleeve hole 13 to foregoing Piston 23 acts on.

As shown in Fig. 1 and Fig. 2, figure 2 illustrates it is being opened on pedestal 1 and communicated with foregoing oil storage chamber 26 one Oil storage chamber oil outlet 11i, an oil storage chamber spill port 11j, a safety valve oil leak hole 11k and an oil storage chamber oil road repairing oil outlet 11l, shoe cream room oil outlet 11i communicate with foregoing oil storage chamber oil road 11a, and oil storage chamber spill port 11j returns with foregoing oil storage chamber Oil duct 11g is communicated, and safety valve oil leak hole 11k communicates with foregoing safety valve draining road 11d, oil storage chamber oil road repairing oil outlet 11l communicates with the fuel-displaced repairing road 12a of foregoing oil storage chamber.Also show it is being opened on pedestal 1 and with foregoing high-voltage oil cavity A 27 high-voltage oil cavity fuel feed hole 11m, the high-voltage oil cavity spill port 11n communicated and a high-voltage oil cavity oil input channel repairing fuel feed hole 11p, high-voltage oil cavity fuel feed hole 11m communicate with foregoing hydraulic oil oil input channel 11b, high-voltage oil cavity spill port 11n and foregoing height Pumping cavity back oil road 11e is communicated, high-voltage oil cavity oil input channel repairing fuel feed hole 11p and foregoing high-voltage oil cavity oil-feed repairing road 12b Communicate.

Refer to Fig. 4, Fig. 5 and combine Fig. 1 to Fig. 2, on the foregoing right side of pedestal 1 and corresponding to foregoing hydraulic oil The position of pump 3 offers a high-pressure oil pump mounting hole 18（Fig. 4 shows）, foregoing high-pressure oil pump 3 includes the pump housing 31, pump core 32, pushes away Bar 33, pump core spring 34 and push rod guide sleeve 35, the right side of the pump housing 31 and foregoing pedestal 1 are and foregoing high-pressure oil pump mounting hole 18 screw threads, which coordinate, to be fixed, and there is the pump housing 31 pump core to be slidably matched chamber 311, left end and the high-pressure oil pump mounting hole 18 of the pump housing 31 Fixed, the left end outer wall of the pump housing 31 and the sealing of pump housing sealing ring 181 being embedded on the hole wall of high-pressure oil pump mounting hole 18 coordinate, It is slidably matched in the pump core in the cavity wall of chamber 311 and offers a pump in the position for entering oil road 11c corresponding to foregoing oil pump Body enters oil outlet 3111, and the pump housing, which enters oil outlet 3111 and enters oil road 11c with foregoing oil pump, to be communicated, and pump core 32 is slided with pump core Mating cavity 311 is slidably matched, and as shown in Figure 4, is slidably matched in foregoing pump core in the cavity wall of chamber 311 and is embedded with pump core sealing ring 3112, the sealing of pump core 32 and the pump core sealing ring 3112 coordinates, and pump core 32 is towards the left side that the side of pump core spring 34 is shown in Fig. 4 Side, which is formed, a pump core spring-loaded chamber 321, and push rod 33 is arranged on pump core and is slidably matched in chamber 311, and push rod guide sleeve 35 is right The left end of push rod 33 should be arranged in the position of foregoing push rod guide sleeve hole 13, and by being arranged on the left end end of push rod 33 Guide sleeve back-up ring 331 stops that pump core spring 34 is nested with push rod 33, and the left end of the pump core spring 34 is supported on push rod guide sleeve 35 towards the side of pump core 32, and the right-hand member of pump core spring 34 is supported on the bottom of chamber wall of pump core spring-loaded chamber 321, works as pump core During 32 direction displacement to push rod guide sleeve 35, push rod guide sleeve 35 enters the high pressure as described in pump core 32 makes the approach of push rod 33 Oil pocket 27 promotes foregoing piston 23 to drive oil cylinder post 24 to be oriented to the cylinder cap oil cylinder post of foregoing cylinder cap 25 from piston 23 to left dislocation Stretched outside hole 251, the fluid in foregoing oil storage chamber 26 enters oil road control valve 4 through foregoing oil storage chamber oil road 11a, oil pump successively Enter foregoing high-voltage oil cavity 27 with high-voltage oil cavity oil input channel 11b, meanwhile, the fluid in oil storage chamber 26 goes out through foregoing oil storage chamber successively Oily repairing road 12a, back oil road control valve 7 and high-voltage oil cavity oil-feed repairing road 12b enter high-voltage oil cavity 27.As shown in Figure 4, it is foregoing The right-hand member of the pump housing 31 leans out pedestal 1, and a rubber washer 312 is provided with the position of the right-hand member end face of the pump housing 1.

See Fig. 3 and Fig. 1 to Fig. 2 and Fig. 6 is combined, on foregoing pedestal 1 and corresponding to foregoing oil pump The position for entering oil road control valve 4 offers oil pump with longitudinal state and enters oil road control valve receiving hole 14, is passed in and out in the oil pump The bottom of oil duct control valve receiving hole 14 is extended with the oil pump oil-feed that a diameter enters oil road control valve receiving hole 14 less than oil pump Road small ball receiving hole 141, foregoing oil pump enter oil road control valve 4 and entered including the oily 41, high-voltage oil cavity that blocks up of high-voltage oil cavity oil input channel Oil duct big steel ball spring 42, high-voltage oil cavity oil input channel big steel ball 43, high-voltage oil cavity oil input channel small ball spring 44 and high-voltage oil cavity Oil input channel small ball 45, high-voltage oil cavity oil input channel small ball 45 are arranged on the bottom of oil pump oil input channel small ball receiving hole 141, high Pumping cavity oil input channel small ball spring 44 is arranged in oil pump oil input channel small ball receiving hole 141, and the high-voltage oil cavity oil input channel is small The upper end of steel ball and spring 44 is supported on high-voltage oil cavity oil input channel big steel ball 43, and lower end is supported on the small steel of high-voltage oil cavity oil input channel On ball 45, high-voltage oil cavity oil input channel big steel ball 43 is arranged on the bottom that oil pump enters oil road control valve receiving hole 14, high-voltage oil cavity The upper end of oil input channel big steel ball spring 42 is supported on high-voltage oil cavity oil input channel oil stifled 41, and lower end is nested with high-voltage oil cavity oil-feed On road big steel ball spring bearing housing 421, the high-voltage oil cavity oil input channel big steel ball spring bearing housing 421 is supported on high-voltage oil cavity oil-feed On road big steel ball 43, high-voltage oil cavity oil input channel oil stifled 41 enters the top orifice part position spiral shell of oil road control valve receiving hole 14 with oil pump Line is fixed, foregoing oil storage chamber oil road 11a the position of the lower section corresponding to high-voltage oil cavity oil input channel small ball 45 with it is foregoing Oil pump oil input channel small ball receiving hole 141 communicates, and foregoing high-voltage oil cavity oil input channel 11b enters oil road control valve appearance with foregoing oil pump Receiving hole 14 communicates, and foregoing oil pump enters oil road 11c in the top corresponding to high-voltage oil cavity oil input channel small ball 45 and high-voltage oil cavity Position between the lower section of oil input channel big steel ball 43 communicates with foregoing oil pump oil input channel small ball receiving hole 141.

Continue to see Fig. 1 to Fig. 5, with horizontality on foregoing pedestal 1 and in the position corresponding to foregoing oil return valve 5 Offer oil return valve mounting hole 15, foregoing oil return valve 5 include oil return valve body 51, oil return valve valve rod 52, return spring 53a, Oil return valve steel ball 53b, little spring 53c, transition spring 53d, spring base 54 and supporting bead 55, the left end of oil return valve body 51 are visited Enter with pedestal 1 with the screw thread of oil return valve mounting hole 15 to coordinate in foregoing oil return valve mounting hole 15 and fix, the oil return valve body 51 has Once fuel tap valve-rod cavity 511a, corresponding to oil return valve valve-rod cavity 511a left side an oil return valve steel ball chamber 511b and correspond to Spring-leaf retainer chamber 511c on the left of oil return valve steel ball chamber 511b, and an oil return inclined hole is offered at the middle part of oil return valve body 51 512, one end of the oil return inclined hole 512 communicates with oil return valve valve-rod cavity 511a, and the other end is with being formed in oil return valve body 51 Oil return valve body oil back chamber 513 between portion's outer wall and the hole wall of oil return valve mounting hole 15 communicates, and the oil return valve body oil return Chamber 513 communicates with foregoing oil return valve back oil road 11f, oil return valve body 51 left end and oil return valve mounting hole 15 hole wall it Between form fuel tap valve body oil suction chamber 514 once, the oil return valve body oil suction chamber 514 and foregoing high-voltage oil cavity back oil road 11e Communicate, and obstructed between oil return valve body oil suction chamber 514 and foregoing oil return valve body oil back chamber 513 by spacer ring 515, returned Fuel tap valve rod 52 is slidably matched with oil return valve valve-rod cavity 511a, and return spring 53 is located in oil return valve valve-rod cavity 511a and is nested with On oil return valve valve rod 52, oil return valve steel ball 53b and little spring 53c are arranged in oil return valve steel ball chamber 511b, and small bullet Spring 53c is located at oil return valve steel ball 53b left side, and little spring 53c one end is supported on supporting bead 55, and the other end supports On oil return valve steel ball 53b, spring base 54 is arranged in foregoing spring-leaf retainer chamber 511c, and supporting bead 55 is corresponding to spring The position in the left side of seat 54 is arranged in spring-leaf retainer chamber 511c, and transition spring 53d is corresponding to spring base 54 and supporting bead Position between 55 is arranged in spring-leaf retainer chamber 511c, and transition spring 53d one end is supported on spring base 54, the other end It is supported on supporting bead 55, foregoing oil return valve body oil suction chamber 514 is by connecting foregoing spring base 54 and supporting bead 55 Between oil canal 56 communicated with foregoing oil return valve steel ball chamber 511b, and oil return valve steel ball chamber 511b is in oil return valve valve rod 52 The top of valve rod thimble 521 of left end extension open and communicated with oil return valve valve-rod cavity 511a in the state of oil return valve steel ball 53b.

Please emphasis see Fig. 1 to Fig. 3, with longitudinal state on foregoing pedestal 1 and in the position corresponding to previous security valve 6 A safety valve installation cavity 16 is offered, foregoing safety valve 6 blocks up including safety valve steel ball 61, safety valve spring 62 and safe valve oil 63, safety valve steel ball 61 is arranged on the bottom of safety valve installation cavity 16, and safe valve oil stifled 63 is corresponding to safety valve installation cavity 16 Position and the foregoing screw thread of pedestal 1 on top coordinate and fix, safety valve spring 62 is located at safety valve steel ball 61 and blocked up with safe valve oil Between 63, the upper end of the safety valve spring 62 is supported on safe valve oil stifled 63, and lower end is nested with safety valve spring fulcrum bearing On 621, safety valve spring fulcrum bearing 621 is supported on safety valve steel ball 61, and foregoing oil pump enters oil road 11c corresponding to peace The position of the bottom of full valve steel ball 61 communicates with safety valve installation cavity 16, and previous security valve draining road 11d is corresponding to safety valve The position of the top of steel ball 61 communicates with safety valve installation cavity 16.

Please emphasis see Fig. 1 to Fig. 3 and Fig. 7, on foregoing pedestal 1 and corresponding to foregoing back oil road control valve 7 Position offers a back oil road control valve installation cavity 17 with longitudinal state, and in the bottom of the back oil road control valve installation cavity 17 The small ball chamber 171 that a diameter is less than back oil road control valve installation cavity 17 is extended with, foregoing back oil road control valve 7 includes oil return Small ball 71, oil return small ball spring 72, oil return big steel ball 73, pressure ball post 74 and oil return oil stifled 75, oil return small ball 71 is set In the bottom of small ball chamber 171, oil return small ball spring 72 is arranged in small ball chamber 171, the oil return small ball spring 72 Upper end is supported on oil return big steel ball 73, and lower end is supported on oil return small ball 71, and oil return big steel ball 73 is arranged on back oil road In control valve installation cavity 17, oil return oil stifled 75 is in the position on the top corresponding to back oil road control valve installation cavity 17 and the spiral shell of pedestal 1 Line, which coordinates, to be fixed, and pressure ball post 74 is located at oil return oil and blocked up between 75 and oil return big steel ball 73, the fuel-displaced repairing road 12a of foregoing oil storage chamber Communicated in the position of the lower section corresponding to oil return small ball 71 with the bottom of foregoing small ball chamber 171, foregoing high-voltage oil cavity enters Oily repairing road 12b is communicating corresponding to the position between oil return small ball 71 and oil return big steel ball 73 with small ball chamber 171, foregoing Oil return valve back oil road 11f and foregoing oil storage chamber back oil road 11g the position of the top corresponding to oil return big steel ball 73 with Back oil road control valve installation cavity 17 communicates.

As shown in Figure 4, it is embedded with push rod guide sleeve exterior seal ring 351 on the outer wall of foregoing push rod guide sleeve 35, and Push rod guide sleeve inner seal ring 352 is embedded with the inwall of push rod guide sleeve 35, push rod guide sleeve exterior seal ring 351 pushes away with foregoing The sealing of bar guide sleeve hole 13 coordinates, and push rod guide sleeve inner seal ring 352 coordinates with the sealing of push rod 33.

Preferably, the port position of one end of foregoing oil storage chamber 26 is provided with one in foregoing oil storage chamber oil road 11a Oil storage chamber oil road oil cleaner screen 11h（Fig. 4 shows）.

Preferably, in foregoing oil return valve body oil suction chamber 514 and in the position in the left side corresponding to foregoing spring base 54 Install and be equipped with an oil canal oil screen pack 5141（Fig. 4 shows）.

Refer to Fig. 8 and Fig. 9 and combine Fig. 3 and Fig. 4, figure 8 illustrates the operating mechanism having already mentioned above 8, because the structure of operating mechanism 8 belongs to known prior art, see, for example, in the superincumbent background technology column of applicant The patent document referred to, thus applicant is only briefly described below.

Operating mechanism 8 includes a pair of wallboards 81, presses hand lever seat 82, presses hand lever 83, oil return valve valve rod plate 84 and pedal 85, foregoing pedestal 1 together with the foregoing oil cylinder mechanism 2, high-pressure oil pump 3, oil pump being arranged on pedestal 1 enter oil road control valve 4, Oil return valve 5, safety valve 6 and back oil road control valve 7 are arranged between a pair of wallboards 81 and positioned at the right-hand member of a pair of wallboards 81 （By taking Fig. 4 and Fig. 9 location status as an example）, wallboard left wheel 811 is each provided with the bottom of the left end of a pair of wallboards 81（Fig. 9 Show）, the right roller 812 of wallboard is each provided with the bottom of the right-hand member of a pair of wallboards 81, presses the both sides of hand lever seat 82 and a pair of wallboards 81 is be hinged, the top that middle part corresponds between a pair of wallboards 81 and is extended with one and presses hand lever sleeve 821, and hand lever sleeve is pressed at this 821 bottom offers one and presses hand lever flange stopper slot 8211, presses hand lever 83 and is plugged on and press in hand lever sleeve 821, hand is pressed at this The bottom of bar 83 and corresponding to press hand lever flange stopper slot 8211 position form pressing hand lever rotational angle limit convex Edge 831, this, which is pressed hand lever rotational angle defining flange 831 and probeed into, presses in hand lever flange stopper slot 8211, oil return valve valve rod plate 84 By the hub setting of plate bearing pin screw 841 in a pair of wallboards 81 wherein on one piece of wallboard, by the oil return valve valve rod plate 84 The pawl adjusting screw 522 of the end of oil return valve valve rod 52 of 842 pairs of foregoing oil return valves 5 of oil return valve valve rod acts on.Specifically：Pressing Hand lever 83 by it acts on oil return valve valve rod plate 84 after rotating an angle, oil return valve valve rod is pawled and 842 spreads to adjustment spiral shell Nail 522, makes the left lateral of oil return valve valve rod 52（Fig. 4 states）, overcoming return spring 53a active force（Counter-force）Under by being moved to the left Valve rod thimble 521 top open oil return valve steel ball 53b, oil return valve body oil suction chamber 514 is through oil canal 56（Fig. 1 shows）With oil return valve steel Spherical cavity 511b is communicated, while oil return valve steel ball chamber 511b communicates with oil return valve valve-rod cavity 511a, then the height in high-voltage oil cavity 27 Force feed successively through high-voltage oil cavity back oil road 11e, oil return valve body oil suction chamber 514, oil canal 56, oil return valve steel ball chamber 511b, return Fuel tap valve-rod cavity 511a, oil return inclined hole 512, oil return valve body oil back chamber 513, oil return valve back oil road 11f, back oil road control valve 7, Oil storage chamber back oil road 11g and oil storage chamber spill port 11j enters oil storage chamber 26, is rotated conversely, hand lever 83 ought will be pressed round about During one angle, press hand lever 83 and oil return valve valve rod plate 84 is not acted on, oil return valve valve rod 842 pairs of adjusting screws 522 of pawling are released Put, the drainback passage between high-voltage oil cavity 27 and oil storage chamber 26 disconnects.Foregoing pedal 85 is by trampling board shaft 851（Fig. 4 Show）Up and down（Pass through spring）Hub setting is on a pair of wallboards 81, on the pedal 85 and corresponding to foregoing high pressure The position of the right-hand member end face of the pump core 32 of oil pump 3（By taking Fig. 4 location status as an example）Pedal roll sleeve axle 8521 is provided with one Pedal roll sleeve 852, it is end-acted to the right-hand member of pump core 32 by the pedal roll sleeve 852（Fig. 4 shows）.Specifically：By operator Pedal 85 is trampled in upper and lower samsara, can move back and forth pump core 32, with to the fuel feeding of high-voltage oil cavity 27（Pump oil）, due to oil return valve 5 and the operation principle of high-pressure oil pump 3 belong to known technology, thus applicant repeats no more.

And base portion hub setting being engaged with oil cylinder post 24 is also show in fig.9（It is be hinged）Rising on a pair of wallboards 81 Weighing arm 9, it is that free end is provided with pallet 91 in the end of crane arm 9（Also can claim " jacking block "）.When the oil cylinder post 24 illustrated from Fig. 4 to During left stretching, extension, the revolution of crane arm 9 is set to lift, vice versa.Because the lifting of crane arm 9 belongs to known technology, example with decline The patent document referred in the superincumbent background technology column of applicant is can be found in as same, thus has only been made briefly above It is bright.

Applicant is to unloaded, load（Load）, overload and oil return be respectively described below：

By taking Fig. 4 location status as an example, when unloaded, i.e., idle stroke when, namely crane arm 9 pallet 91 not with load such as Before vehicle contact, pedal 85 is stepped on by the pin of operator one, the left lateral of pump core 32 of high-pressure oil pump 3, promotes push rod 33 to move to left, by Push rod 33 promotes the piston 23 of the structural system of oil cylinder mechanism 2 to drive oil cylinder post 24 to make to left dislocation from piston 23 to left dislocation The base portion of crane arm 9 turns round clockwise, and the free end of crane arm 9 is the pallet 91 and load such as vehicle contact of end. In this process, cause to produce negative pressure in high-voltage oil cavity 27 due to moving to left for piston 23, then the fluid in oil storage chamber 26 is successively Pass through shoe cream room oil road repairing oil outlet 11l, the fuel-displaced repairing road 12a of oil storage chamber, back oil road control valve 7（It is small that oil return is opened on top In the state of steel ball 71）, hydraulic oil oil-feed repairing road 12b and hydraulic oil oil-feed repairing road oilhole 11p enter high-voltage oil cavity 27, really Guarantor makes pallet 91 be contacted with load i.e. load in the state of stepping on once.

During load, pedal 85 is trampled by upper and lower samsara under the operation to aforementioned operation mechanism 8（Step on sole）, make The pump core 32 of the structural system of high-pressure oil pump 3 horizontally slips, and when moving to right, under suction function, the fluid in oil storage chamber 26 is successively Enter oil road 11c, the pump housing through shoe cream room oil outlet 11i, oil storage chamber oil road 11a, high-voltage oil cavity oil input channel small ball 45, oil pump Enter oil outlet 3111 and pump core is slidably matched chamber 311（That is " pump core chamber "）, with moving to left for core pump 32, it is previously entered pump core cooperation Fluid in chamber 311 just enters oil road 11c, high-voltage oil cavity oil input channel big steel ball 43 through oil pump successively（State is opened in top）, it is high Pumping cavity oil input channel 11b and high-voltage oil cavity fuel feed hole 11m, into high-voltage oil cavity 27, promote piston 23 to move to left, drive oil cylinder post 24, so as to rise crane arm 9 by oil cylinder post 24, finally lift load.

When overload, pump core inner high voltage oil is that the hydraulic oil that pump core is slidably matched in chamber 311 enters oil outlet through the pump housing successively 3111st, oil pump enters oil road 11c, safe steel ball valve 61（It is opening in jack-up）, safety valve draining road 11d and safety valve Oil leak hole 11k enters oil storage chamber 26.

During oil return, an angle is turned over clockwise by pressing hand lever 83 Ru foregoing, oil return valve valve rod is pawled and 842 is pushed away And adjusting screw 522, oil return valve valve rod 52 move to left, valve rod thimble 521, which pushes up, opens oil return valve steel ball 53b, the height in high-voltage oil cavity 27 Force feed successively through high-voltage oil cavity spill port 11n, high-voltage oil cavity back oil road 11e, oil return valve body oil suction chamber 514, oil canal 56, return Valve ball chamber 511b, oil return valve valve-rod cavity 511a, oil return inclined hole 512, oil return valve body oil back chamber 513, oil return valve back oil road 11f, pressure ball post 74（With and phase corresponding with oil return valve back oil road 11f and oil storage chamber back oil road 11g respectively on pressure ball post 74 Logical pressure ball post oilhole）, oil storage chamber back oil road 11g and oil storage chamber spill port 11j enter in oil storage chamber 26.

In summary, technical scheme provided by the utility model compensate for the shortcoming in prior art, favorably accomplish Invention task, the technique effect referred in the superincumbent technique effect column of applicant is faithfully cashed.

Claims (10)

1. a kind of unloaded quick lifting Horizontal hydraulic jack, including a pedestal (1), oil storage chamber is offered on the pedestal (1) Oil road (11a), high-voltage oil cavity oil input channel (11b), oil pump enter oil road (11c), safety valve draining road (11d), high-voltage oil cavity Back oil road (11e), oil return valve back oil road (11f) and oil storage chamber back oil road (11g)；One oil cylinder mechanism (2), the oil cylinder mechanism (2) Be arranged on the left side of the pedestal (1) and with described oil storage chamber oil road (11a), high-voltage oil cavity oil input channel (11b), safety Valve draining road (11d), high-voltage oil cavity back oil road (11e) and oil storage chamber back oil road (11g) communicate；One high-pressure oil pump (3), the high pressure Oil pump (3) is arranged on the right side of the pedestal (1), and enters oil road (11c) with described oil pump and communicate；One oil pump enters fuel-displaced Road control valve (4), the oil pump enter oil road control valve (4) be arranged on it is on the pedestal (1) and fuel-displaced with described oil storage chamber Road (11a), high-voltage oil cavity oil input channel (11b) and oil pump enter oil road (11c) and communicated；One oil return valve (5), the oil return valve (5) It is arranged on the right side of the pedestal (1) and is corresponding to high-pressure oil pump (3) in the state of parallel with the high-pressure oil pump (3) Top, the oil return valve (5) communicate with the high-voltage oil cavity back oil road (11e) and oil return valve back oil road (11f)；One safety valve (6), the safety valve (6) is arranged on the pedestal (1) and enters oil road (11c) and safety valve draining road with the oil pump (11d) is communicated；One back oil road control valve (7), the back oil road control valve (7) corresponding to the oil return valve back oil road (11f) with Position between oil storage chamber back oil road (11g) is arranged in the pedestal (1), it is characterised in that is also opened on the pedestal (1) Provided with the fuel-displaced repairing road (12a) of an oil storage chamber and a high-voltage oil cavity oil-feed repairing road (12b), the fuel-displaced repairing road of the oil storage chamber (12a) and high-voltage oil cavity oil-feed repairing road (12b) communicate with described back oil road control valve (7), described oil cylinder mechanism (2) Repairing road (12a) fuel-displaced with oil storage chamber and a high-voltage oil cavity oil-feed repairing road (12b) communicate.

2. unloaded quick lifting Horizontal hydraulic jack according to claim 1, it is characterised in that described oil cylinder mechanism (2) include outer cylinder sheath (21), inner cylinder liner (22), piston (23), oil cylinder post (24) and cylinder cap (25), the left end of outer cylinder sheath (21) with The left end outer wall sealing of inner cylinder liner (22) is fixed, and the left side sealing of right-hand member and the pedestal (1) is fixed, and inner cylinder liner (22) is positioned at outer In cylinder sleeve (21), left end and cylinder cap (25) sealing of the inner cylinder liner (22) are fixed, and the left side sealing of right-hand member and pedestal (1) is solid Fixed, the space between inside and outside cylinder sleeve (21,22) is configured to oil storage chamber (26), the oil storage chamber (26) and the oil storage chamber oil road (11a), safety valve draining road (11d), oil storage chamber back oil road (11g) and the fuel-displaced repairing road (12a) of described oil storage chamber communicate, Piston (23) is movably arranged in the inner cylinder liner plunger shaft (221) of inner cylinder liner (22), on the outer wall of the piston (23) Piston packing (231) is provided with, the piston packing (231) and the cavity wall sealing of inner cylinder liner plunger shaft (221) coordinate, oil cylinder Post (24), which corresponds on the left of piston (23), to be arranged in inner cylinder liner plunger shaft (221) and with being engaged on the left of piston (23), The cylinder cap oil cylinder post pilot hole (251) of middle position of the left end of the oil cylinder post (24) with being opened in cylinder cap (25) is slidably matched, And oil cylinder column sealing circle (2511) is embedded with the hole wall of cylinder cap oil cylinder post pilot hole (251), oil cylinder post (24) and the oil Cylinder column sealing circle (2511) sealing coordinates, and the space between the right side of the piston (23) and the pedestal (1) is configured to high pressure Oil pocket (27), the high-voltage oil cavity (27) and described high-voltage oil cavity oil input channel (11b), high-voltage oil cavity back oil road (11e) and institute The high-voltage oil cavity oil-feed repairing road (12b) stated communicates, on the pedestal (1) and corresponding to the high-pressure oil pump (3) Position offers a push rod guide sleeve hole (13), and the push rod guide sleeve hole (13) communicates with the high-voltage oil cavity (27), hydraulic oil Pump (3) is acted on the piston (23) in the position corresponding to push rod guide sleeve hole (13).

3. unloaded quick lifting Horizontal hydraulic jack according to claim 2, it is characterised in that described high-pressure oil pump (3) include the pump housing (31), pump core (32), push rod (33), pump core spring (34) and push rod guide sleeve (35), the pump housing (31) with it is described The right side of pedestal (1) is fixed, and there is the pump housing (31) pump core to be slidably matched chamber (311), is slidably matched chamber (311) in the pump core Cavity wall on and offer a pump housing in the position for entering oil road (11c) corresponding to the oil pump and enter oil outlet (3111), should The pump housing, which enters oil outlet (3111) and enters oil road (11c) with oil pump, to be communicated, and pump core (32) and the pump core chamber (311) that is slidably matched are slided and matched somebody with somebody Close, the pump core (32) is formed towards the side of pump core spring (34) a pump core spring-loaded chamber (321), and push rod (33) is arranged on Pump core is slidably matched in chamber (311), and push rod guide sleeve (35) is arranged in the position corresponding to the push rod guide sleeve hole (13) The left end of push rod (33), and stopped by the guide sleeve back-up ring (331) for the left end end for being arranged on push rod (33), pump core spring (34) it is nested with push rod (33), the left end of the pump core spring (34) is supported on push rod guide sleeve (35) towards the one of pump core (32) Side, and the right-hand member of pump core spring (34) is supported on the bottom of chamber wall of pump core spring-loaded chamber (321), when pump core (32) is led to push rod To during the direction displacement for covering (35), push rod guide sleeve (35) enters the hydraulic oil as described in pump core (32) makes push rod (33) approach Chamber (27) promotes the piston (23) to make oil cylinder post (24) to the cylinder cap oil cylinder of the cylinder cap (25) from piston (23) to left dislocation Post pilot hole (251) stretches outside, and the fluid in the oil storage chamber (26) enters through the oil storage chamber oil road (11a), oil pump successively Oil road control valve (4) and high-voltage oil cavity oil input channel (11b) enter the high-voltage oil cavity (27), meanwhile, in oil storage chamber (26) Fluid is successively through the fuel-displaced repairing road (12a) of the oil storage chamber, back oil road control valve (7) and high-voltage oil cavity oil-feed repairing road (12b) Into high-voltage oil cavity (27).

4. unloaded quick lifting Horizontal hydraulic jack according to claim 3, it is characterised in that in described pedestal (1) Above and oil pump is offered with longitudinal state in the position for entering oil road control valve (4) corresponding to described oil pump and enter oil road control Valve receiving hole (14) processed, the bottom that oil road control valve receiving hole (14) is entered in the oil pump are extended with a diameter less than oil pump disengaging The oil pump oil input channel small ball receiving hole (141) of oil duct control valve receiving hole (14), the oil pump enter oil road control valve (4) bag Include high-voltage oil cavity oil input channel oil stifled (41), high-voltage oil cavity oil input channel big steel ball spring (42), high-voltage oil cavity oil input channel big steel ball (43), high-voltage oil cavity oil input channel small ball spring (44) and high-voltage oil cavity oil input channel small ball (45), high-voltage oil cavity oil input channel are small Steel ball (45) is arranged on the bottom of oil pump oil input channel small ball receiving hole (141), high-voltage oil cavity oil input channel small ball spring (44) It is arranged in oil pump oil input channel small ball receiving hole (141), the upper end supporting of the high-voltage oil cavity oil input channel small ball spring (44) On high-voltage oil cavity oil input channel big steel ball (43), and lower end is supported on high-voltage oil cavity oil input channel small ball (45), high-voltage oil cavity Oil input channel big steel ball (43) is arranged on the bottom that oil pump enters oil road control valve receiving hole (14), high-voltage oil cavity oil input channel big steel ball The upper end of spring (42) is supported on high-voltage oil cavity oil input channel oil stifled (41), and lower end is nested with high-voltage oil cavity oil input channel big steel ball On spring bearing housing (421), it is big that the high-voltage oil cavity oil input channel big steel ball spring bearing housing (421) is supported on high-voltage oil cavity oil input channel On steel ball (43), high-voltage oil cavity oil input channel oil stifled (41) enters the top orifice part position of oil road control valve receiving hole (14) with oil pump It is screwed, described oil storage chamber oil road (11a) is in the position of the lower section corresponding to high-voltage oil cavity oil input channel small ball (45) Communicated with the oil pump oil input channel small ball receiving hole (141), the high-voltage oil cavity oil input channel (11b) is entered fuel-displaced with the oil pump Road control valve receiving hole (14) communicates, and the oil pump enters oil road (11c) corresponding to high-voltage oil cavity oil input channel small ball (45) Top and high-voltage oil cavity oil input channel big steel ball (43) lower section between position and the oil pump oil input channel small ball receiving hole (141) communicate.

5. unloaded quick lifting Horizontal hydraulic jack according to claim 1, it is characterised in that in described pedestal (1) Oil return valve mounting hole (15), described oil return above and in the position corresponding to the oil return valve (5) are offered with horizontality Valve (5) includes oil return valve body (51), oil return valve valve rod (52), return spring (53a), oil return valve steel ball (53b), little spring (53c), transition spring (53d), spring base (54) and supporting bead (55), the left end of oil return valve body (51) probe into the oil return Fixed with pedestal (1) in valve mounting hole (15), the oil return valve body (51) has an oil return valve valve-rod cavity (511a), corresponding to returning The one oil return valve steel ball chamber (511b) in the left side of fuel tap valve-rod cavity (511a) and corresponding to oil return valve steel ball chamber (511b) on the left of Spring-leaf retainer chamber (511c), and an oil return inclined hole (512), the oil return inclined hole are offered in the middle part of oil return valve body (51) (512) one end communicates with oil return valve valve-rod cavity (511a), the other end and be formed in the middle part outer wall of oil return valve body (51) with Oil return valve body oil back chamber (513) between the hole wall of oil return valve mounting hole (15) communicates, and the oil return valve body oil back chamber (513) communicated with described oil return valve back oil road (11f), in left end and the oil return valve mounting hole (15) of oil return valve body (51) Fuel tap valve body oil suction chamber (514) once are formed between hole wall, the oil return valve body oil suction chamber (514) and described high-voltage oil cavity Back oil road (11e) communicates, and between oil return valve body oil suction chamber (514) and the oil return valve body oil back chamber (513) by every Obstructed from packing ring (515), oil return valve valve rod (52) is slidably matched with oil return valve valve-rod cavity (511a), and return spring (53a) is located at In oil return valve valve-rod cavity (511a) and it is nested with oil return valve valve rod (52), oil return valve steel ball (53b) and little spring (53c) It is arranged in oil return valve steel ball chamber (511b), and little spring (53c) is located at the left side of oil return valve steel ball (53b), the little spring The one end of (53c) is supported on supporting bead (55), and the other end is supported on oil return valve steel ball (53b), and spring base (54) is set Put in described spring-leaf retainer chamber (511c), supporting bead (55) is arranged in the position in the left side corresponding to spring base (54) In spring-leaf retainer chamber (511c), transition spring (53d) is set corresponding to the position between spring base (54) and supporting bead (55) Put in spring-leaf retainer chamber (511c), one end of the transition spring (53d) is supported on spring base (54), and the other end is supported on On rim circle (55), described oil return valve body oil suction chamber (514) is by connecting the spring base (54) and supporting bead (55) Between oil canal (56) communicated with described oil return valve steel ball chamber (511b), and the oil return valve steel ball chamber (511b) is in oil return valve Valve rod thimble (521) top of the left end extension of valve rod (52) open in the state of oil return valve steel ball (53b) with oil return valve valve-rod cavity (511a) is communicated.

6. unloaded quick lifting Horizontal hydraulic jack according to claim 1, it is characterised in that on the pedestal (1) And one safety valve installation cavity (16), described safety are offered with longitudinal state in the position corresponding to the safety valve (6) Valve (6) includes safety valve steel ball (61), safety valve spring (62) and safe valve oil and blocks up (63), and safety valve steel ball (61) is arranged on peace The bottom of full valve installation cavity (16), safe valve oil block up (63) the position on the top corresponding to safety valve installation cavity (16) with it is described Pedestal (1) screw thread, which coordinates, to be fixed, and safety valve spring (62) is located at safety valve steel ball (61) and safe valve oil is blocked up between (63), the peace The upper end of full valve spring (62) is supported on safe valve oil and blocked up on (63), and lower end is nested with safety valve spring fulcrum bearing (621), Safety valve spring fulcrum bearing (621) is supported on safety valve steel ball (61), and described oil pump enters oil road (11c) corresponding to peace The position of the bottom of full valve steel ball (61) communicates with safety valve installation cavity (16), the safety valve draining road (11d) corresponding to The position of the top of safety valve steel ball (61) communicates with safety valve installation cavity (16).

7. unloaded quick lifting Horizontal hydraulic jack according to claim 3, it is characterised in that on the pedestal (1) And one back oil road control valve installation cavity is offered with longitudinal state in the position corresponding to the back oil road control valve (7) (17), and in the bottom of the back oil road control valve installation cavity (17) it is extended with a diameter and is less than back oil road control valve installation cavity (17) small ball chamber (171), described back oil road control valve (7) include oil return small ball (71), oil return small ball spring (72), oil return big steel ball (73), pressure ball post (74) and oil return oil are stifled (75), and oil return small ball (71) is arranged on small ball chamber (171) bottom, oil return small ball spring (72) are arranged in small ball chamber (171), the oil return small ball spring (72) it is upper End is supported on oil return big steel ball (73), and lower end is supported on oil return small ball (71), and oil return big steel ball (73) is arranged on back In oil duct control valve installation cavity (17), oil return oil stifled (75) is in the position on the top corresponding to back oil road control valve installation cavity (17) Put to coordinate with pedestal (1) screw thread and fix, pressure ball post (74) is located at oil return oil and blocked up between (75) and oil return big steel ball (73), described The fuel-displaced repairing road (12a) of oil storage chamber is in the position of the lower section corresponding to oil return small ball (71) and the small ball chamber (171) Bottom communicates, and described high-voltage oil cavity oil-feed repairing road (12b) is corresponding to oil return small ball (71) and oil return big steel ball (73) Between position communicated with small ball chamber (171), described oil return valve back oil road (11f) and described oil storage chamber back oil road (11g) communicates in the position of the top corresponding to oil return big steel ball (73) with back oil road control valve installation cavity (17).

8. unloaded quick lifting Horizontal hydraulic jack according to claim 3, it is characterised in that be oriented in the push rod Cover and be embedded with push rod guide sleeve exterior seal ring (351) on the outer wall of (35), and be embedded with the inwall of push rod guide sleeve (35) Push rod guide sleeve inner seal ring (352), push rod guide sleeve exterior seal ring (351) are matched somebody with somebody with the push rod guide sleeve hole (13) sealing Close, push rod guide sleeve inner seal ring (352) coordinates with push rod (33) sealing.

9. unloaded quick lifting Horizontal hydraulic jack according to claim 2, it is characterised in that go out in the oil storage chamber Oil duct (11a) is provided with an oil storage chamber oil road oil cleaner screen (11h) towards the port position of one end of the oil storage chamber (26).

10. unloaded quick lifting Horizontal hydraulic jack according to claim 5, it is characterised in that in the oil return valve valve An oil canal oil screen pack is provided with body oil suction chamber (514) and in the position in the left side corresponding to the spring base (54) (5141)。