CN106276685B - Jack and combination valve - Google Patents
Jack and combination valve Download PDFInfo
- Publication number
- CN106276685B CN106276685B CN201610745475.2A CN201610745475A CN106276685B CN 106276685 B CN106276685 B CN 106276685B CN 201610745475 A CN201610745475 A CN 201610745475A CN 106276685 B CN106276685 B CN 106276685B
- Authority
- CN
- China
- Prior art keywords
- valve
- jack
- feather
- combination
- unloading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
Abstract
The present invention relates to a kind of jack and combination valves.Jack, including jack matrix, jack matrix is equipped with piston mechanism, jack further includes combination valve, a part for jack matrix constitutes combination of valve body, the oil inlet passage that combination of valve body is equipped with combination valve valve chamber and communicates therewith, drainback passage and working oil channel, core assembly is equipped in combination valve valve chamber, core assembly includes the unloading valve core for coordinating the inner elements of check valve for constituting check valve with oil inlet passage and coordinating composition feather valve with drainback passage, the plunger shaft normal open in working oil channel and piston mechanism, combination valve is set to have both the function of check valve and feather valve in this way, in jack matrix, one combination valve valve chamber is set, keep jack structure compact, be conducive to use in the space of narrow complexity.
Description
Technical field
The present invention relates to a kind of jack and combination valves.
Background technology
Jack includes piston mechanism, plunger mechanism and oil cylinder, and the low pressure fluid in oil cylinder is under the action of plunger mechanism
Be converted to the high-voltage oil liquid for driving piston structure.To avoid the high-voltage oil liquid in piston from flowing back, need plunger mechanism with
Piston mechanism check valve is set on the oil circuit between piston mechanism, while the connection plunger shaft of piston mechanism and unloading for oil cylinder are set
Valve is carried, opening feather valve can be such that the high-voltage oil liquid in piston mechanism is back in oil cylinder, realize the unloading of jack.Existing skill
Piston mechanism check valve is provided separately with feather valve in art, needs the volume for increasing jack matrix to meet piston mechanism in this way
Check valve and feather valve installation space cause the bulky problem of jack in this way.
Invention content
The purpose of the present invention is to provide a kind of compact-sized jack；Meanwhile the present invention also provides a kind of combination valves.
To achieve the above object, the technical solution of jack of the invention is：Jack, including jack matrix, it is very heavy
It pushes up matrix and is equipped with piston mechanism, the jack further includes combination valve, and a part for the jack matrix constitutes combination valve
Valve body, oil inlet passage, drainback passage and the working oil channel that combination of valve body is equipped with combination valve valve chamber and communicates therewith, combination
Core assembly is equipped in valve valve chamber, core assembly includes coordinating the inner elements of check valve and and the oil return that constitute check valve with oil inlet passage
Channel cooperation constitutes the unloading valve core of feather valve, the plunger shaft normal open in the working oil channel and piston mechanism.
Be additionally provided with plunger pump and fuel tank on the jack matrix, plunger pump include be located at it is on jack matrix, with into
The lower end of the plunger cavity of oily channel connection, plunger cavity is equipped with check valve and the other end of check valve is connected to fuel tank.
The combination valve further includes feather valve valve rod and is located at the unloading valve base of combination valve valve chamber one end, described to unload
Valve rod and unloading valve core synchronous interaction are carried, flow control device is constituted.
Elastic component is equipped in the combination valve valve chamber, the elastic force of elastic component makes unloading valve core and feather valve valve base sealing
Cooperation, unloading valve base are equipped with relief passage, and the front end of feather valve valve rod extends in relief passage, and feather valve valve rod is to unloading
When carrying valve core movement its front end can pushing tow unloading valve core overcome the elastic force of elastic component to be detached from unloading valve base, and in movement
The gap for unloading valve core in the process and unloading between valve base gradually increases.
The unloading valve base further includes the feather valve drive shaft by helicitic texture spinning on jack matrix, described
Feather valve valve rod is relatively fixed with feather valve drive shaft and connect.
The technical solution of combination valve of the present invention is：Combination valve, including combination of valve body, combination of valve body are equipped with combination
Valve valve chamber and oil inlet passage, drainback passage and the working oil channel communicated therewith are equipped with core assembly, spool in combination valve valve chamber
Component includes the unloading for coordinating the inner elements of check valve for constituting check valve with oil inlet passage and coordinating composition feather valve with drainback passage
Valve core.
Be additionally provided with plunger pump and fuel tank on the jack matrix, plunger pump include be located at it is on jack matrix, with into
The lower end of the plunger cavity of oily channel connection, plunger cavity is equipped with check valve and the other end of check valve is connected to fuel tank.
The combination valve further includes feather valve valve rod and is located at the unloading valve base of combination valve valve chamber one end, described to unload
Valve rod and unloading valve core synchronous interaction are carried, flow control device is constituted.
Elastic component is equipped in the combination valve valve chamber, the elastic force of elastic component makes unloading valve core and feather valve valve base sealing
Cooperation, unloading valve base are equipped with relief passage, and the front end of feather valve valve rod extends in relief passage, and feather valve valve rod is to unloading
When carrying valve core movement its front end can pushing tow unloading valve core overcome the elastic force of elastic component to be detached from unloading valve base, and in movement
The gap for unloading valve core in the process and unloading between valve base gradually increases.
The unloading valve base further includes feather valve drive shaft, feather valve drive shaft be equipped with for spinning corresponding
Helicitic texture on matrix, the feather valve valve rod is relatively fixed with feather valve drive shaft to be connect.
The beneficial effects of the invention are as follows：It is equipped with inner elements of check valve and unloading valve core in combination valve valve chamber, keeps combination valve simultaneous
Have the function of check valve and feather valve, one combination valve valve chamber is set in jack matrix in this way, keeps jack structure tight
It gathers, is conducive to use in the space of narrow complexity.
Description of the drawings
Fig. 1 is the structural schematic diagram of the specific embodiment of the jack of the present invention；
Fig. 2 is sectional views of the Fig. 1 along the directions B-B；
Fig. 3 is C direction views in Fig. 2；
Fig. 4 is D direction views in Fig. 2；
Fig. 5 is the partial enlarged view at F in Fig. 2；
Fig. 6 is the stereogram at the positive visual angle of Fig. 2；
The stereogram backwards to visual angle that Fig. 7 is Fig. 2.
In figure：1, jack matrix, 2, plunger driving mechanism, 3, plunger pump, 4, piston mechanism, 5, feel trim actuator, 6, peace
Full valve, 11, Magnetic filtration device pin, 12, ventilative bolt, 13, plunger pump one-way valve valve ball, 14, connecting hole, 101, fuel tank, 102, column
Fill in chamber, 103, plunger pump oil inlet passage, 104, feather valve oil discharge passage, 105, working oil channel, 106, combination valve valve chamber, 107,
Plunger cavity oil discharge passage, 21, lift, 22, lift pedestal, 23, lift connecting plate, 24, handle, 211, plunger articulated shaft, 221,
Lift pedestal articulated shaft, 231, lift articulated shaft, 31, plunger, 32, plunger cavity end cap, 41, piston/cylinder, 42, piston, 51, unload
Carry valve drive shaft, 52, operating shaft, 53, unloading handle, 54, feather valve drive shaft connector sleeve, 55, feather valve drive shaft connecting plate,
56, feather valve drive shaft intermediate plate, 57, operating shaft connecting plate, 501, feather valve valve rod, 502, unloading valve base, 503, unloading
Valve valve ball, 504, spring base, 505, combination valve spring, 506, piston Ball of Non-return, 511, feather valve drive shaft seal receptacle,
521, operating shaft resetting spring.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the jack of the present invention, as shown in Fig. 1 ~ 7, jack includes jack matrix 1, plunger actuation
Mechanism 2, plunger pump 3, piston mechanism 4, feel trim actuator 5 and safety valve 6.Piston mechanism 4 be located at the front end of jack matrix 1 and to
The rear end of preceding extension, jack matrix 1 extends back equipped with oil pocket, which forms fuel tank 101.It is left on the outer wall of fuel tank 101
Right to be set relatively there are two connecting hole 14, connecting hole 14 is used to connect with corresponding frame body, and Magnetic filtration device pin 11 is embedded on inner wall,
Iron filings in adsorbable fluid promote the cleannes of fluid.Plunger driving mechanism 2 is located at the top of jack matrix 1, unloader
Structure 5 is located at the left and right sides of jack matrix 1, and is realized and linked by operating shaft 52.
As shown in Fig. 1 ~ 7, feel trim actuator 5 includes feather valve and its operating mechanism, and operating mechanism includes being located at jack base
The feather valve drive shaft 51 on 1 right side of body, the front end of feather valve drive shaft 51 are equipped with the outer spiral shell being threadedly coupled with jack matrix 1
Line, when feather valve drive shaft 51 is rotated relative to jack matrix 1, feather valve drive shaft 51 will produce the displacement in axial direction.
Feather valve drive shaft 51 is arranged with seal receptacle 511 on the position close to its rear end, to be sealed to feather valve drive shaft 51.Operation
Axis 52 penetrates rotatably the lower section that jack matrix 1 is located at feather valve drive shaft 51, and the both ends of operating shaft 52 are across very heavy
Top matrix 1 simultaneously extends certain length to respective both sides.The both ends of operating shaft 52 are equipped with unloading handle 53, in this way from any one
Side can operate operating mechanism.Operating shaft 52 is equipped with operating shaft resetting spring 521, behaviour on the position close to right end
It is torsional spring to make axis resetting spring 521, and one end and the jack matrix 1 of the torsional spring are relatively fixed, and the other end passes through backing pin and operation
Axis 52 is fixed, and torsional spring can be such that operating shaft 52 resets, and is reduced installation space using torsional spring, is kept jack structure simple.
Rotation stop is equipped with feather valve drive shaft connector sleeve 54 on 51 follower head of feather valve drive shaft, and feather valve drives axis connection
Set 54 is fixed on by trip bolt rotation stop in feather valve drive shaft 51, and feather valve is installed on feather valve drive shaft connector sleeve 54
Drive shaft connecting plate 55, the rotation stop on position corresponding with about 55 connecting plate of feather valve drive shaft of operating shaft 52 turn equipped with operation
The free end of axis connection plate 57, operating shaft connecting plate 57 and feather valve drive shaft connecting plate 55 is in feather valve drive shaft 51 and behaviour
Make the same side of axis 52, and hinged by feather valve drive shaft intermediate plate 56, at this time feather valve drive shaft connecting plate 55, feather valve
Drive shaft intermediate plate 56, operating shaft connecting plate 57 and jack matrix constitute four-bar mechanism, the four-bar mechanism respectively with
Feather valve drive shaft 51 and operating shaft 52 are two axis, when operating shaft 52 rotates, are unloaded by above-mentioned four-bar mechanism drive
It carries valve drive shaft 51 to rotate, realizes the control to feather valve, cost is reduced using four-bar mechanism.
As shown in Figure 2 and Figure 5, spiral shell of the unloading valve base 502 by the external screw thread spinning of its periphery on jack matrix 1
In pit and fixed, which is same threaded hole, unloading with threaded hole of the feather valve drive shaft 51 on jack matrix
Valve base 502 is equipped with certain gap in the axial direction with feather valve drive shaft 51, so that feather valve drive shaft 51 can be with unloading
Valve base 502 generates the displacement in axial direction.It unloads valve base 502 and is equipped with coaxial centre bore, centre bore composition is unloaded
The relief passage of valve is carried, the front end of centre bore is equipped with the taper hole coordinated with feather valve valve ball 503, and feather valve valve ball 503 is steel ball,
When feather valve valve ball 503 coordinates with the taper hole on unloading valve base 502 in this way, feather valve valve ball 503 and feather valve valve are improved
The leakproofness of seat 502.Feather valve valve rod 501 is coaxially installed in the front end of feather valve drive shaft 51, and its front end extends to unloading
In the centre bore of valve base 502.The outer diameter of feather valve valve rod 501 is less than the internal diameter of the centre bore of unloading valve base 502, so that oily
Liquid can pass through from gap between the two.It is moved forward when under drive of the feather valve valve rod 501 in feather valve drive shaft 51
When, front end face can jack up feather valve valve ball 503, disengage it from unloading valve base 502, feather valve is opened.
Unload the mounting hole that useful installation spring base 504 is opened up on the jack matrix of the front end of valve base 502, the installation
Hole constitutes the combination valve valve chamber 106 of the combination valve of feather valve and piston check valve composition, i.e. feather valve valve chamber and piston check valve
Valve chamber has been integrally formed combination valve valve chamber 106, and feather valve valve ball 503 and piston Ball of Non-return 506 constitute the spool of combination valve
One end of component, combination valve valve chamber 106 is equipped with throat structure, which is constituted and the cooperation of piston Ball of Non-return 506
Piston one-way valve seat, the throat structure is cone structure in embodiment.Two spring bases 504 in combination valve valve chamber 106
Combination valve spring 505 is installed between feather valve valve ball 503 and piston Ball of Non-return 506, and between two spring bases,
Valve spring 505 is combined by two spring bases by above-mentioned two valve ball level pressure to respective valve seat, makes feather valve and piston list
It is closed to valve.The gap for fluid circulation is equipped between two spring bases and combination valve valve chamber.When feather valve valve rod 501 will unload
Carry valve valve ball 503 it is open-top when, piston closed check valve at this time, the fluid in working oil channel 105 enters combination valve valve chamber 106
In, it is flowed into fuel tank 101 after then entering feather valve oil discharge passage 104 by feather valve, realizes the unloading of jack, feather valve
Oil discharge passage 104 is the drainback passage of combination valve.Due to feather valve drive shaft 51 by helicitic texture spinning in jack base
On body, the different angle of rotation feather valve drive shaft 51, you can make feather valve drive shaft 51 screw in different in jack matrix
Depth, such feather valve valve rod 501 will drive feather valve valve ball 503 to make its space change between unloading valve base 502,
To which the oil mass for making the unit interval pass through feather valve is controlled, the discharge rate of such jack is also just controllable, avoids using
When because of the too fast generation safety accident of discharge rate.
Plunger cavity 102 is located on jack matrix 1, is connected to fuel tank 101 by plunger pump oil inlet passage 103, plunger cavity
102 lower end is equipped with plunger pump one-way valve, and 102 lower end of plunger cavity is equipped with throat structure, constitutes the valve ball of plunger pump one-way valve,
The throat structure is cone structure in the present embodiment.
When 31 uplink of plunger, for 101 low pressure oil liquid stream through plunger pump oil inlet passage 103, open-top plunger pump is unidirectional in fuel tank
Valve valve ball enters in plunger cavity；When 31 downlink of plunger, plunger pump one-way valve valve ball is closed at this time, and the fluid in plunger cavity is made to become
High-voltage oil liquid, when high-voltage oil liquid is by plunger cavity oil discharge passage 107, open-top piston Ball of Non-return 506, into piston mechanism 4
Piston cylinder in, plunger cavity oil discharge passage 107 be combination valve oil inlet passage.
The needs that mount that the jack of the present invention lifts formula or truss-like load hanging vehicle to adapt to arm design, in use,
Two connecting holes on the fuel tank outer wall of jack connect one end of jack and corresponding frame body, the piston of piston mechanism with
The other end of frame body connects, by pulling handle up and down, to drive plunger mechanism to provide high-voltage oil liquid as jack.Because of operation
When narrow space causes that handle can not be pulled, the plunger driving mechanism of jack is rotated, you can turn to handle easy to operation
Position；Need unloading when, rotational handle operating shaft, operating shaft by link mechanism drive feather valve drive shaft with jack
To screw-in on the inside of jack under the screw-thread fit effect of matrix, while feather valve valve rod being driven to open feather valve, realizes unloading.Behaviour
The both ends for making axis are mounted on unloading handle, when being awkward because of the narrow side in operating space, to the unloading handle of the other side
Operation, meanwhile, the size of the angle of the rotation by controlling unloading handle, you can realize the adjustment of discharge rate.
In the above embodiment of the present invention, feather valve valve ball constitutes unloading valve core, in other embodiments, unloading
Valve core can also be taper valve core, be connect at this point, the taper valve core is relatively fixed with feather valve valve rod, the movement of feather valve valve rod
When can synchronous drive taper valve core be detached from the valve seat that coordinates with it, by control taper valve core at a distance from the disengagement between valve seat
The adjusting of feather valve flow can be realized；What the spool of check valve can also be taper valve core or other shapes may be implemented list
The spool of row effect；The valve seat of piston check valve at this time can also pass through one-way valve seat with jack matrix split settings
Screw thread is connect with jack matrix.
The specific embodiment of the combination valve of the present invention, the combination valve and the combination valve knot in the embodiment of above-mentioned jack
Structure is identical, repeats no more.
Claims (2)
1. jack, including jack matrix, jack matrix is equipped with piston mechanism, it is characterised in that：The jack is also
Including combination valve, the jack matrix a part constitute combination of valve body, combination of valve body be equipped with combination valve valve chamber and
Oil inlet passage, drainback passage and the working oil channel communicated therewith, core assembly is equipped in combination valve valve chamber, and core assembly includes
Coordinate the inner elements of check valve for constituting check valve with oil inlet passage and coordinates the unloading valve core for constituting feather valve, institute with drainback passage
The plunger shaft normal open of working oil channel and piston mechanism is stated, the combination valve further includes feather valve valve rod and is located at the combination valve
The unloading valve base of valve chamber one end, the unloading valve rod and unloading valve core synchronous interaction, composition flow control device, described group
It closes and is equipped with elastic component in valve valve chamber, the elastic force of elastic component makes unloading valve core coordinate with feather valve valve base sealing, feather valve valve
Seat is equipped with relief passage, and the front end of feather valve valve rod extends in relief passage, and feather valve valve rod is moved to unloading valve core
When its front end can pushing tow unloading valve core overcome the elastic force of elastic component to be detached from unloading valve base, and the feather valve in moving process
Gap between spool and unloading valve base gradually increases, and the unloading valve base further includes by helicitic texture spinning very heavy
The feather valve drive shaft on matrix is pushed up, the feather valve valve rod is relatively fixed with feather valve drive shaft to be connect, and the jack is also
Including operating shaft, torsional spring is provided in the operating shaft, the one end is fixedly connected with jack matrix, the other end and behaviour
It is fixedly connected as axis, the operating shaft is connect with two axis of feather valve drive shaft by four-bar mechanism.
2. jack according to claim 1, it is characterised in that：It is additionally provided with plunger pump and oil on the jack matrix
Case, plunger pump include being located at plunger cavity on jack matrix, being connected to oil inlet passage, and the lower end of plunger cavity is equipped with check valve
And the other end of check valve is connected to fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745475.2A CN106276685B (en) | 2016-08-29 | 2016-08-29 | Jack and combination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745475.2A CN106276685B (en) | 2016-08-29 | 2016-08-29 | Jack and combination valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106276685A CN106276685A (en) | 2017-01-04 |
| CN106276685B true CN106276685B (en) | 2018-09-11 |
Family
ID=57676561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610745475.2A Active CN106276685B (en) | 2016-08-29 | 2016-08-29 | Jack and combination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106276685B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2136233Y (en) * | 1992-10-18 | 1993-06-16 | 陈海亮 | Fast oil jack |
| CN1123528C (en) * | 2000-03-06 | 2003-10-08 | 胡宣哲 | Fully automatic hydraulic jack |
| CN201221635Y (en) * | 2008-07-12 | 2009-04-15 | 赵寅 | Hydraulic spacing elevating valve for dump truck |
| CN101498380A (en) * | 2009-03-17 | 2009-08-05 | 马银良 | Two-position three-way electromagnetic valve |
| CN201882851U (en) * | 2010-12-10 | 2011-06-29 | 常熟通润汽车零部件股份有限公司 | Oil return structure of hydraulic jack |
| CN203230645U (en) * | 2013-03-20 | 2013-10-09 | 镇江华瑞液压机械有限公司 | Dual-energy-saving combination hydraulic valve |
| ES1083480Y (en) * | 2013-05-20 | 2013-09-23 | Melchor Gabilondo Sa | Bottle jack equipped with a telescopic drive lever assembly |
-
2016
- 2016-08-29 CN CN201610745475.2A patent/CN106276685B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106276685A (en) | 2017-01-04 |
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