CN110077985A - A kind of jack - Google Patents
A kind of jack Download PDFInfo
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- CN110077985A CN110077985A CN201910411503.0A CN201910411503A CN110077985A CN 110077985 A CN110077985 A CN 110077985A CN 201910411503 A CN201910411503 A CN 201910411503A CN 110077985 A CN110077985 A CN 110077985A
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- auxiliary
- main
- hinged
- arm
- main body
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- 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
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Tents Or Canopies (AREA)
Abstract
The present invention provides a kind of jack, belong to technical field of crane equipment.It solves the problems, such as existing jack, and there are security risks.This jack, including main jacking frame, the main jacking frame includes main saddle, two Your Majesty's arms, two main body cradles, two main lower arms and main pedestal, operation screw rod is connected on two main body cradles, jack further includes two auxiliary jacking frames, auxiliary jacking frame includes auxiliary saddle, two auxiliary upper arm, two auxiliary body cradles, two auxiliary lower arms and auxiliary pedestal, the support rod that can be swung up and down is hinged on auxiliary body cradle, two opposite free end of support rod are hinged with a positioning plate on two auxiliary jacking frames, positioning plate is equipped with the locking piece being locked in positioning plate when two auxiliary pedestals are relatively distant from and enable two support rod levels on main body cradle.This jack guarantees safety when using while facilitating storage.
Description
Technical field
The invention belongs to technical field of crane equipment, are related to a kind of jack.
Background technique
Jack, which refers to, uses rigid top lift part as equipment, by the small stroke of top bracket or bottom claw
The light and small lifting equipment of weight is opened, jack is mainly used for the departments such as factories and miness, communications and transportation as Mechanical Help and other
The work such as weight, support, light structure is firm, flexibility and reliability, and a people can carry and operate, jack wide variety, including
Hydraulic jack, scissor-like jack etc., wherein scissor-like jack is called bracket jack, is domestic major using light and fast
With vehicle product, upper rack posts and lower fulcrum bar made of sheet metal are formed for automobile factory, are required to grasp when automobile needs to change tire
Make scissor-like jack and locally jack up vehicle, is single-point with ground and vehicle since scissor-like jack is integrally in flat
Effect, support are not sufficiently stable, and there are security risks.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of jack is proposed, this jack exists
Facilitate the safety guaranteed when using while storage.
Object of the invention can be realized by the following technical scheme: a kind of jack, including main jacking frame, the main top
Rising frame includes main saddle, two Your Majesty's arms, two main body cradles, two main lower arms and main pedestal, the upper end of two Your Majesty's arms with main saddle
It is hinged, lower end is hinged with two main body cradles respectively, and the upper end of two main lower arms is hinged with two main body cradles respectively, and lower end is equal
It is hinged on main pedestal, is connected on the two main body cradles and is able to drive the mobile operation spiral shell of two main body cradle synchronous backwards
Bar, which is characterized in that the jack further includes the two auxiliary jacking frames for being located at main jacking frame two sides, and the auxiliary jacking frame is equal
Including auxiliary saddle, two auxiliary upper arm, two auxiliary body cradles, two auxiliary lower arms and auxiliary pedestal, the upper end of two auxiliary upper arm is mutually cut with scissors with auxiliary saddle
It connects, lower end is hinged with two auxiliary body cradles respectively, and the upper end of two auxiliary lower arms is hinged with two auxiliary body cradles respectively, and lower end is hinged
On auxiliary pedestal, the connecting rod that two auxiliary pedestal synchronous backwards can be made mobile, institute are connected between the main pedestal and two auxiliary pedestals
State the support rod that is hinged with and can swing up and down on auxiliary body cradle, two opposite free end of support rod are with one on two auxiliary jacking frames
Positioning plate is hinged, and the positioning plate is equipped with positioning plate when two auxiliary pedestals are relatively distant from and enable two support rod levels
The locking piece being locked on main body cradle.
Two auxiliary jacking frames are moved when not in use, so that two auxiliary jacking frames are born against in the two sides of main jacking frame, at this time
Support rod is swung up to vertical state, and entire jack facilitates storage, when it is desired to be used, by two auxiliary jackings in flat
Frame is unfolded to two sides are mobile, and connecting rod can guarantee being symmetrical arranged for the relatively main jacking frame of two auxiliary jacking frames, with two auxiliary jacking frames
Expansion, support rod is to lower swing, and until support rod is in a horizontal state, auxiliary jacking frame is deployed under the limitation of support rod at this time
Position, and on the main body cradle that positioning plate lock by locking piece, manual rotary operation screw rod, two main hinges can be transferred by operating screw rod
Frame is connect to synchronize close to movement, so that main saddle is driven to rise, synchronous, main body cradle can be driven auxiliary hinged by support rod
Frame, so that auxiliary body cradle synchronizing moving, i.e., auxiliary saddle synchronizing moving, realize the jacking operation of jack, in operation only
An operation screw rod, which need to be rotated, can make main jacking frame and two auxiliary jacking frame synchronizations of jacking up, easy to operate, and due to two auxiliary bottoms
Seat with main pedestal in multi-point support on the ground, and main saddle and two auxiliary saddles also to vehicle formed multi-point support so that jacking
More stable, safety is higher.
In above-mentioned jack, two pairs of support rods are equipped on the two auxiliary jacking frames between two opposite auxiliary body cradles,
And it is hinged with positioning plate between the free end of a pair of support rods, the auxiliary body cradle when the two auxiliary pedestals are relatively close mobile
On a support rod be swung up, another support rod to lower swing, when the two auxiliary pedestals be relatively distant from it is mobile so that branch
Two positioning plates are locked on main body cradle when strut level.Since main body cradle needs to transmit auxiliary body cradle during jacking
Biggish load power, and two pairs of support rods are symmetrical arranged, so that load power transmitting is more stable, while a pair of branch when jack collapses
Strut is swung up, and another pair support rod is whole in flat to lower swing, facilitates storage.
In above-mentioned jack, the positioning plate is in U-shape plate, and the free end of two support rods is respectively hinged at positioning plate
Both ends on the inside of, be fixed with locating piece on the main body cradle, offer card slot in the upper and lower side of the locating piece, work as institute
Two positioning plates snap onto the two sides up and down of locating piece respectively when stating support rod level, and a side edge of positioning plate is connected to card slot
It is interior.When the expansion of two auxiliary jacking frames, two positioning plates are buckled in the two sides up and down of locating piece respectively, so that two positioning plates are symmetrical set,
Stress is more steady, while positioning plate is buckled in card slot, and the connection between locating piece is more stable.
In above-mentioned jack, the locking piece includes two knobs, and the knob all has stud, two positioning plates
Inner bottom surface on all have locking column, the locking column is provided in the axial direction with through hole, and through hole runs through positioning plate, two institutes
The stud for stating knob turns through the through hole of two locking columns respectively, offers lockhole in the upper and lower side of the locating piece,
Screw hole is offered on the bottom surface of the lockhole, two locking columns are plugged on two lockholes of locating piece respectively when the support rod level
It is interior, and the stud of two knobs is screwed onto respectively in two screw holes.When positioning plate is buckled on locating piece, locking column can be plugged on lock
Determine in hole, increases the bonding strength between positioning plate and locating piece, positioning plate is avoided deformation occur, and the stud on knob can
It is screwed onto screw hole, so that positioning plate be avoided to be detached from locating piece, while stud is threaded through in the through hole of locking column, can be by
The protection of locking column, thus in operation stud will not radial force, to avoid the occurrence of deformation or screw thread is destroyed.
In above-mentioned jack, the two main body cradles are in U-shape plate, the end part of Your Majesty's arm and main lower arm
It is not hinged on the inside of the both ends of main body cradle, the locating piece is fixed on the lateral surface of main body cradle, and the operation screw rod turns
On one main body cradle of dynamic connection, it is fixed with nut on the inside of another main body cradle, is offered on two locating pieces logical
Hole, and through-hole runs through main body cradle, the both ends of the operation screw rod are each passed through through-hole.Structure is more compact, stablizes.
In above-mentioned jack, the end of the auxiliary L-shaped plate of body cradle, the auxiliary upper arm and auxiliary lower arm is cut with scissors respectively
Connect the connection frame that U-board shape is fixed on the both ends of auxiliary body cradle medial surface, the lateral surface of the auxiliary body cradle, two branch
The end of strut is respectively hinged on the inside of the both ends of connection frame.The fixed setting of auxiliary body cradle and connection frame, so that whole knot
Structure intensity is higher.
In above-mentioned jack, the cross section of the auxiliary upper arm and auxiliary lower arm is in U-shape, and two auxiliary jacking frames it is auxiliary on
Arm recess is opposite, and the auxiliary lower arm recess of two auxiliary jacking frames is opposite, the two auxiliary jacking frames when two auxiliary pedestals lean with main pedestal
Auxiliary upper arm snap on Your Majesty's arm, and the edge of two auxiliary upper arm leans, the auxiliary lower arm of two auxiliary jacking frames snap onto it is main under
On arm, and the edge of two auxiliary lower arms leans.When two auxiliary jacking frames collapse, Your Majesty's arm is hidden in two auxiliary upper arm, and main lower arm is hidden
It ensconces in two auxiliary lower arms, so that the structure after collapsing is more compact, facilitates storage.
In above-mentioned jack, swing arm, the swing arm are hinged on the auxiliary upper arm upper side of one of them auxiliary jacking frame
Free end offer bayonet, on the auxiliary upper arm upper side of another auxiliary jacking frame have card column, when two auxiliary pedestals with main bottom
The bayonet of swing arm can be connected in card column when seat leans.Swing arm is rotated after two auxiliary jacking frames collapse, makes its free end
It snaps onto card column, so that two auxiliary jacking frames be tensed, guarantees compact-sized stabilization.
In above-mentioned jack, the bottom surface of the main pedestal has installation gap, and the connecting rod has two, and two connecting rods
Middle part it is arranged in a crossed manner, the crossover locations of two connecting rods is rotatably connected in the middle part of the installation gap of main pedestal by support column,
The both ends of two connecting rods all have connecting column, offer sliding slot along its length on the medial surface of the two auxiliary pedestals, described
Link slot is offered on sliding slot bottom surface along its length, the both ends of two connecting rods are inserted into respectively in the sliding slot of two auxiliary pedestals, and
In link slot, the lower end of the support column is further fixed on support base for connecting column sliding plug.By the setting of two connecting rods, so that
Two auxiliary jacking frame synchronous expansions, so that subject to when positioning plate and locating piece snapping precisely, can also make two auxiliary jacking frames same
Step collapses, easy to operate, and support column can guarantee structural stability to being supported in the middle part of main saddle with support base.
In above-mentioned jack, the outer side edges edge of the auxiliary saddle downside has articulated slab, the two auxiliary upper arm
End is respectively hinged at the both ends of articulated slab, is fixed with stiffening plate, and stiffening plate between the articulated slab and auxiliary saddle downside
Between the end of two auxiliary upper arm.Stiffening plate improves the structural strength of auxiliary saddle.
Compared with prior art, this jack has the advantage that
1, since two auxiliary jacking frames when not in use are born against in the two sides of main jacking frame, support rod is swung up at this time
To vertical state, entire jack facilitates storage in flat, and two auxiliary pedestals and main pedestal are in multi-point support on ground when in use
On face, and main saddle and two auxiliary saddles also form multi-point support to vehicle, so that jacking is more stable, safety is higher.
2, main jacking frame and two auxiliary jacking frames can be made same due to need to only rotate an operation screw rod in operation
Step jacking, it is easy to operate.
3, stud is threaded through in the through hole of locking column when due to jacking operation, can be by the protection of locking column, therefore
In operation stud will not radial force, to avoid the occurrence of deformation or screw thread is destroyed
Detailed description of the invention
Schematic perspective view when Fig. 1 is jack expansion.
Fig. 2 is schematic perspective view when jack collapses.
Fig. 3 is the schematic enlarged-scale view in Fig. 1 at A.
Structure top view when Fig. 4 is jack expansion.
Fig. 5 is the structure sectional view in Fig. 4 at B-B.
Fig. 6 is the schematic enlarged-scale view in Fig. 5 at C.
Fig. 7 is the structure sectional view in Fig. 4 at D-D.
In figure, 1, main jacking frame；11, main saddle；12, Your Majesty's arm；13, main body cradle；131, nut；14, main lower arm；
15, main pedestal；151, installation gap；152, support column；153, support base；2, auxiliary jacking frame；21, auxiliary saddle；211, articulated slab；
212, stiffening plate；22, auxiliary upper arm；23, auxiliary body cradle；231, connection frame；24, auxiliary lower arm；25, auxiliary pedestal；251, sliding slot；252,
Link slot；3, screw rod is operated；31, operation portion；311, jack；4, connecting rod；41, connecting column；5, support rod；51, positioning plate；52,
Locking column；521, through hole；6, locating piece；61, card slot；62, lockhole；63, screw hole；64, through-hole；7, knob；71, stud；8,
Swing arm；81, bayonet；9, card column.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of jack, including main jacking frame 1, main jacking frame 1 are main including main saddle 11, two
Upper arm 12, two main body cradles 13, two main lower arms 14 and main pedestal 15, the upper end of two Your Majesty's arms 12 are hinged with main saddle 11,
Lower end is hinged with two main body cradles 13 respectively, and the upper end of two main lower arms 14 is hinged with two main body cradles 13 respectively, and lower end is equal
It is hinged on main pedestal 15, is connected on two main body cradles 13 and is able to drive the mobile operation spiral shell of two main 13 synchronous backwards of body cradle
Bar 3, jack further include the two auxiliary jacking frames 2 for being located at main 1 two sides of jacking frame, and auxiliary jacking frame 2 includes auxiliary saddle 21, two
Auxiliary upper arm 22, two auxiliary body cradles 23, two auxiliary lower arms 24 and auxiliary pedestal 25, the upper end of two auxiliary upper arm 22 are cut with scissors with auxiliary 21 phase of saddle
It connects, lower end is hinged with two auxiliary body cradles 23 respectively, and the upper end of two auxiliary lower arms 24 is hinged with two auxiliary body cradles 23 respectively, lower end
It is hinged on auxiliary pedestal 25, being connected between main pedestal 15 and two auxiliary pedestals 25 can make two auxiliary 25 synchronous backwards of pedestal mobile
Connecting rod 4, be hinged with the support rod 5 that can be swung up and down on the auxiliary body cradle 23, two opposite supports on two auxiliary jacking frames 2
5 free end of bar is hinged with a positioning plate 51, and positioning plate 51 is equipped with when two auxiliary pedestals 25 are relatively distant from so that two support rods 5
The locking piece that positioning plate 51 can be locked in when horizontal on main body cradle 13.Two auxiliary jacking frames 2 are moved when not in use, so that
Two auxiliary jacking frames 2 are born against in the two sides of main jacking frame 1, and support rod 5 is swung up to vertical state at this time, entire jack
In flat, facilitate storage, when it is desired to be used, two auxiliary jacking frames 2 is unfolded to two sides are mobile, connecting rod 4 can guarantee that two is auxiliary
The relatively main jacking frame 1 of jacking frame 2 is symmetrical arranged, and with the expansion of two auxiliary jacking frames 2, support rod 5 is to lower swing, until support
Bar 5 is in a horizontal state, and auxiliary jacking frame 2 expands in place under the limitation of support rod 5 at this time, and positioning plate 51 is locked by locking piece
Main body cradle 13 on, manual rotary operation screw rod 3, operation screw rod 3 can transfer two main body cradles 13 and synchronize close to movement, from
And main saddle 11 is driven to rise, synchronous, main body cradle 13 can drive auxiliary body cradle 23 by support rod 5, so that auxiliary hinged
23 synchronizing moving of frame, i.e., auxiliary 21 synchronizing moving of saddle realize the jacking operation of jack, need to only rotate one in operation
Operation screw rod 3 can make main jacking frame 1 and two auxiliary 2 synchronizations of jacking up of jacking frame, easy to operate, and due to two auxiliary pedestals 25 and master
Pedestal 15 in multi-point support on the ground, and main saddle 11 and two auxiliary saddles 21 also to vehicle formed multi-point support so that jacking
More stable, safety is higher.
In conjunction with shown in Fig. 4, Fig. 5, Fig. 6, two pairs of support rods are equipped on two auxiliary jacking frames 2 between two opposite auxiliary body cradles 23
5, and with being hinged with positioning plate 51 between the free end of a pair of support rods 5, when the two auxiliary pedestals 25 are relatively close mobile
A support rod 5 on auxiliary body cradle 23 is swung up, and another support rod 5 is to lower swing, when two auxiliary pedestals 25 are relatively distant from
It moves so that two positioning plates 51 are locked on main body cradle 13 when support rod 5 is horizontal, due to main body cradle 13 during jacking
Need to transmit auxiliary body cradle 23 biggish load power, and two pairs of support rods 5 are symmetrical arranged, so that load power transmitting is more stable, together
When jack collapses a pair of support rods 5 be swung up, another pair support rod 5 is whole in flat to lower swing, conveniently deposits
It puts.Positioning plate 51 is in U-shape plate, and the free end of two support rods 5 is respectively hinged on the inside of the both ends of positioning plate 51, main body cradle 13
On be fixed with locating piece 6, offer card slot 61 in the upper and lower side of locating piece 6, two positioning plates 51 divide when support rod 5 is horizontal
The two sides up and down of locating piece 6 are not snapped onto, and a side edge of positioning plate 51 is connected in card slot 61, when two auxiliary jacking frames 2 are opened up
Two positioning plates 51 are buckled in the two sides up and down of locating piece 6 respectively when opening, so that two positioning plates 51 are symmetrical set, stress is more flat
Surely, while positioning plate 51 is buckled in card slot 61, and the connection between locating piece 6 is more stable.Locking piece includes two knobs 7, institute
It states knob 7 and all has stud 71, all have locking column 52 on the inner bottom surface of two positioning plates 51, locking column 52 is opened along axial direction
Equipped with through hole 521, and through hole 521 runs through positioning plate 51, and the stud 71 of two knobs 7 turns through two locking columns 52 respectively
Through hole 521 offers lockhole 62 in the upper and lower side of locating piece 6, screw hole 63 is offered on the bottom surface of lockhole 62, works as support
Two locking columns 52 are plugged on respectively in two lockholes 62 of locating piece 6 when bar 5 is horizontal, and the stud 71 of two knobs 7 is screwed onto respectively
In two screw holes 63, when positioning plate 51 is buckled on locating piece 6, locking column 52 can be plugged in lock hole, increase positioning plate 51 with
Bonding strength between locating piece 6 avoids positioning plate 51 from deformation occur, and the stud 71 on knob 7 can be screwed onto screw hole 63
Interior, so that positioning plate 51 be avoided to be detached from locating piece 6, while stud 71 is threaded through in the through hole 521 of locking column 52, can be by
The protection of locking column 52, thus in operation stud 71 will not radial force, to avoid the occurrence of deformation or screw thread quilt
It destroys.
Two main body cradles 13 are in U-shape plate, and the end of Your Majesty's arm 12 and main lower arm 14 is respectively hinged at main body cradle 13
Both ends on the inside of, locating piece 6 is fixed on the lateral surface of main body cradle 13, and operation screw rod 3 is rotatablely connected a main body cradle 13
On, the inside of another main body cradle 13 is fixed with nut 131, through-hole 64 is offered on two locating pieces 6, and through-hole 64 runs through
The both ends of main body cradle 13, operation screw rod 3 are each passed through through-hole 64, have operation far from one end of nut 131 in operation screw rod 3
Portion 31 offers the jack 311 for lever-like handle insertion on operation portion 31.The L-shaped plate of auxiliary body cradle 23, auxiliary 22 He of upper arm
The end of auxiliary lower arm 24 is respectively hinged at the both ends of auxiliary 23 medial surface of body cradle, is fixed with U-shaped on the lateral surface of auxiliary body cradle 23
The connection frame 231 of plate, the end of two support rods 5 are respectively hinged on the inside of the both ends of connection frame 231, auxiliary body cradle 23 with connect
The fixed setting of frame 231, so that whole structural strength is higher.The cross section of auxiliary upper arm 22 and auxiliary lower arm 24 is in U-shape, and two
22 recess of auxiliary upper arm of auxiliary jacking frame 2 is opposite, and 24 recess of auxiliary lower arm of two auxiliary jacking frames 2 is opposite, when two auxiliary pedestals 25 with master
The auxiliary upper arm 22 of two auxiliary jacking frames 2 snaps on Your Majesty's arm 12 when pedestal 15 leans, and the edge of two auxiliary upper arm 22 leans,
The auxiliary lower arm 24 of two auxiliary jacking frames 2 snaps on main lower arm 14, and the edge of two auxiliary lower arms 24 leans, when two auxiliary jacking frames
Your Majesty's arm 12 is hidden in two auxiliary upper arm 22 when 2 gathering, and main lower arm 14 is hidden in two auxiliary lower arms 24, so that the structure after collapsing
It is more compact, facilitate storage.Swing arm 8, the freedom of swing arm 8 are hinged on 22 upper side of auxiliary upper arm of one of them auxiliary jacking frame 2
End offer bayonet 81, on 22 upper side of auxiliary upper arm of another auxiliary jacking frame 2 have card column 9, when two auxiliary pedestals 25 with master
The bayonet 81 of swing arm 8 when pedestal 15 leans can be connected in card column 9, rotated swing arm 8 after two auxiliary jacking frames 2 collapse, made
The buckle of its free end snaps onto card column 9, so that two auxiliary jacking frames 2 be tensed, guarantees compact-sized stabilization.Under auxiliary saddle 21
For the outer side edges of side along having articulated slab 211, the end of two auxiliary upper arm 22 is respectively hinged at the both ends of articulated slab 211, articulated slab
Stiffening plate 212 is fixed between 211 and 21 downside of auxiliary saddle, and stiffening plate 212 is located between the end of two auxiliary upper arm 22, adds
Strong plate 212 improves the structural strength of auxiliary saddle 21.As shown in connection with fig. 7, the bottom surface of main pedestal 15 has installation gap 151, connecting rod 4
There are two, and the middle part of two connecting rods 4 is arranged in a crossed manner, the crossover location of two connecting rods 4 is rotatably connected on main pedestal by connecting column 41
15 middle part of installation gap 151, the both ends of two connecting rods 4 all have connecting column 41, along length on the medial surface of the two auxiliary pedestals 25
Degree direction offers sliding slot 251, offers link slot 252, the both ends difference of two connecting rods 4 on 251 bottom surface of sliding slot along its length
It is inserted into the sliding slot 251 of two auxiliary pedestals 25, and 41 sliding plug of connecting column, in link slot 252, the lower end of connecting column 41 is also solid
Surely there is support base 153, by the setting of two connecting rods 4, so that two auxiliary 2 synchronous expansions of jacking frame, so that positioning plate 51 and fixed
Subject to when 6 snapping of block of position precisely, it can also make two auxiliary jacking frames 2 are synchronous to collapse, it is easy to operate.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims, although herein more
The terms such as main jacking frame 1, main saddle 11, Your Majesty's arm 12 are used, but it does not exclude the possibility of using other terms.
Claims (10)
1. a kind of jack, including main jacking frame (1), the main jacking frame (1) include main saddle (11), two Your Majesty's arms (12),
Two main body cradles (13), two main lower arms (14) and main pedestal (15), the upper end of two Your Majesty's arms (12) are mutually cut with scissors with main saddle (11)
It connects, lower end is hinged with two main body cradles (13) respectively, and the upper end of two main lower arms (14) is mutually cut with scissors with two main body cradles (13) respectively
It connects, lower end is hinged on main pedestal (15), is connected on the two main body cradles (13) and is able to drive two main body cradles (13)
The mobile operation screw rod (3) of synchronous backward, which is characterized in that the jack further includes two being located at main jacking frame (1) two
The auxiliary jacking frame (2) of side, the auxiliary jacking frame (2) include auxiliary saddle (21), two auxiliary upper arm (22), two auxiliary body cradles (23),
The upper end of two auxiliary lower arms (24) and auxiliary pedestal (25), two auxiliary upper arm (22) is hinged with auxiliary saddle (21), and lower end is respectively with two
Auxiliary body cradle (23) is hinged, and the upper end of two auxiliary lower arms (24) is hinged with two auxiliary body cradles (23) respectively, and lower end is hinged on
On auxiliary pedestal (25), two auxiliary pedestal (25) synchronous backwards can be made by being connected between the main pedestal (15) and two auxiliary pedestals (25)
Mobile connecting rod (4), is hinged with the support rod (5) that can be swung up and down on the auxiliary body cradle (23), on two auxiliary jacking frames (2)
Opposite two support rods (5) free end is hinged with a positioning plate (51), and the positioning plate (51) is equipped with when two auxiliary pedestals
(25) be relatively distant from locking positioning plate (51) being locked in when enabling two support rods (5) horizontal on main body cradle (13)
Part.
2. jack according to claim 1, which is characterized in that opposite two is auxiliary hinged on the two auxiliary jacking frames (2)
It is equipped with two pairs of support rods (5) between frame (23), and is hinged with positioning plate (51) between the free end of same a pair of support rods (5),
A support rod (5) when the two auxiliary pedestals (25) are relatively close mobile on auxiliary body cradle (23) is swung up, Ling Yigen
Support rod (5) is to lower swing, two positioning plates when the two auxiliary pedestals (25) are relatively distant from movement so that support rod (5) is horizontal
(51) it is locked on main body cradle (13).
3. jack according to claim 2, which is characterized in that the positioning plate (51) is in U-shape plate, two support rods
(5) free end is respectively hinged on the inside of the both ends of positioning plate (51), is fixed with locating piece (6) on the main body cradle (13),
Card slot (61) are offered in the upper and lower side of the locating piece (6), two positioning plates (51) point when the support rod (5) level
The two sides up and down of locating piece (6) are not snapped onto, and a side of positioning plate (51) is interior along card slot (61) is connected to.
4. jack according to claim 3, which is characterized in that the locking piece includes two knobs (7), the knob
(7) it all has stud (71), is all had locking column (52) on the inner bottom surface of two positioning plates (51), the locking column (52) is equal
It is provided in the axial direction with through hole (521), and through hole (521) runs through positioning plate (51), the stud (71) point of two knobs (7)
The through hole (521) of two locking columns (52) is not turned through, offers lockhole in the upper and lower side of the locating piece (6)
(62), screw hole (63) are offered on the bottom surface of the lockhole (62), two locking columns (52) difference when the support rod (5) level
It is plugged in two lockholes (62) of locating piece (6), and the stud (71) of two knobs (7) is screwed onto respectively in two screw holes (63).
5. jack according to claim 4, which is characterized in that the two main body cradles (13) are in U-shape plate, described
The end of Your Majesty's arm (12) and main lower arm (14) is respectively hinged on the inside of the both ends of main body cradle (13), and the locating piece (6) is solid
It is scheduled on the lateral surface of main body cradle (13), the operation screw rod (3) is rotatablely connected on a main body cradle (13), another master
It is fixed with nut (131), is offered through-hole (64) on two locating pieces (6), and through-hole (64) on the inside of body cradle (13)
Through main body cradle (13), the both ends of operation screw rod (3) are each passed through through-hole (64).
6. the jack according to any one of claim 2~5, which is characterized in that the auxiliary body cradle (23) is L-shaped
The end of plate, the auxiliary upper arm (22) and auxiliary lower arm (24) is respectively hinged at the both ends of auxiliary body cradle (23) medial surface, described
The connection frame (231) of U-board shape is fixed on the lateral surface of auxiliary body cradle (23), the end of two support rods (5) is cut with scissors respectively
It connects on the inside of the both ends of connection frame (231).
7. the jack according to any one of claim 2~5, which is characterized in that the auxiliary upper arm (22) and it is auxiliary under
The cross section of arm (24) is in U-shape, and auxiliary upper arm (22) recess of two auxiliary jacking frames (2) is opposite, two auxiliary jacking frames (2) it is auxiliary under
Arm (24) recess is opposite, the auxiliary upper arm (22) of two auxiliary jacking frames (2) when two auxiliary pedestals (25) lean with main pedestal (15)
It snaps on Your Majesty's arm (12), and the edge of two auxiliary upper arm (22) leans, auxiliary lower arm (24) equal snapping of two auxiliary jacking frames (2)
On main lower arm (14), and the edge of two auxiliary lower arms (24) leans.
8. jack according to claim 7, which is characterized in that on the auxiliary upper arm (22) of one of them auxiliary jacking frame (2)
Be hinged on side swing arm (8), the free end of the swing arm (8) offers bayonet (81), another auxiliary jacking frame (2) it is auxiliary on
There are card column (9) on arm (22) upper side, the bayonet of swing arm (8) when two auxiliary pedestals (25) lean with main pedestal (15)
(81) it can be connected on card column (9).
9. the jack according to any one of claim 2~5, which is characterized in that the bottom surface of the main pedestal (15)
With installation gap (151), the connecting rod (4) has two, and the middle part of two connecting rods (4) is arranged in a crossed manner, two connecting rods (4)
Crossover location is rotatably connected in the middle part of the installation gap (151) of main pedestal (15) by support column (152), two connecting rods (4)
Both ends all have connecting column (41), offer sliding slot (251), institute along its length on the medial surface of the two auxiliary pedestals (25)
It states and is offered along its length link slot (252) on sliding slot (251) bottom surface, it is auxiliary that the both ends of two connecting rods (4) are inserted into two respectively
In the sliding slot (251) of pedestal (25), and connecting column (41) sliding plug is interior in link slot (252), under the support column (152)
End is further fixed on support base (153).
10. the jack according to any one of claim 2~5, which is characterized in that auxiliary saddle (21) downside
Outer side edges along having articulated slab (211), the end of the two auxiliary upper arm (22) is respectively hinged at the both ends of articulated slab (211),
It is fixed with stiffening plate (212) between the articulated slab (211) and auxiliary saddle (21) downside, and stiffening plate (212) is auxiliary positioned at two
Between the end of upper arm (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411503.0A CN110077985B (en) | 2019-05-17 | 2019-05-17 | Jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910411503.0A CN110077985B (en) | 2019-05-17 | 2019-05-17 | Jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110077985A true CN110077985A (en) | 2019-08-02 |
| CN110077985B CN110077985B (en) | 2020-08-28 |
Family
ID=67420686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910411503.0A Active CN110077985B (en) | 2019-05-17 | 2019-05-17 | Jack |
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| Country | Link |
|---|---|
| CN (1) | CN110077985B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055329A (en) * | 1976-07-19 | 1977-10-25 | Leisure Manufacturing Co., Inc. | Scissors jack |
| US6799749B1 (en) * | 2003-12-15 | 2004-10-05 | Dura Global Technologies, Inc. | Slim pantograph jack |
| CN2739052Y (en) * | 2004-05-09 | 2005-11-09 | 马金成 | Automatic lifting jack |
| US7073763B1 (en) * | 2004-09-14 | 2006-07-11 | Trout Kenneth R | Support rod for stabilizing an existing scissor jack |
| CN101966970A (en) * | 2009-07-08 | 2011-02-09 | 信孚产业股份有限公司 | Scissor jack |
| US8585017B2 (en) * | 2009-11-30 | 2013-11-19 | Norco Industries, Inc. | Low profile scissor jack |
| US20170369289A1 (en) * | 2016-06-22 | 2017-12-28 | James Alford Flippin | Expandable car jack |
| CN206955536U (en) * | 2017-03-30 | 2018-02-02 | 际华三五一三实业有限公司 | A kind of mobile screw lowering or hoisting gear |
-
2019
- 2019-05-17 CN CN201910411503.0A patent/CN110077985B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055329A (en) * | 1976-07-19 | 1977-10-25 | Leisure Manufacturing Co., Inc. | Scissors jack |
| US6799749B1 (en) * | 2003-12-15 | 2004-10-05 | Dura Global Technologies, Inc. | Slim pantograph jack |
| CN2739052Y (en) * | 2004-05-09 | 2005-11-09 | 马金成 | Automatic lifting jack |
| US7073763B1 (en) * | 2004-09-14 | 2006-07-11 | Trout Kenneth R | Support rod for stabilizing an existing scissor jack |
| CN101966970A (en) * | 2009-07-08 | 2011-02-09 | 信孚产业股份有限公司 | Scissor jack |
| US8585017B2 (en) * | 2009-11-30 | 2013-11-19 | Norco Industries, Inc. | Low profile scissor jack |
| US20170369289A1 (en) * | 2016-06-22 | 2017-12-28 | James Alford Flippin | Expandable car jack |
| CN206955536U (en) * | 2017-03-30 | 2018-02-02 | 际华三五一三实业有限公司 | A kind of mobile screw lowering or hoisting gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110077985B (en) | 2020-08-28 |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A jack Effective date of registration: 20230801 Granted publication date: 20200828 Pledgee: Zhejiang Fuyang Rural Commercial Bank Co.,Ltd. Dongqiao sub branch Pledgor: HANGZHOU FUYANG YONNGFU MACHINE Co.,Ltd. Registration number: Y2023980050546 |
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