CN203095514U - Jack with adjustable angle - Google Patents

Jack with adjustable angle Download PDF

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Publication number
CN203095514U
CN203095514U CN 201320101629 CN201320101629U CN203095514U CN 203095514 U CN203095514 U CN 203095514U CN 201320101629 CN201320101629 CN 201320101629 CN 201320101629 U CN201320101629 U CN 201320101629U CN 203095514 U CN203095514 U CN 203095514U
Authority
CN
China
Prior art keywords
jack
screw rod
hold
down arm
block
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.)
Withdrawn - After Issue
Application number
CN 201320101629
Other languages
Chinese (zh)
Inventor
叶培玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO TIANYI SHAFT CO Ltd
Original Assignee
NINGBO TIANYI SHAFT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NINGBO TIANYI SHAFT CO Ltd filed Critical NINGBO TIANYI SHAFT CO Ltd
Priority to CN 201320101629 priority Critical patent/CN203095514U/en
Application granted granted Critical
Publication of CN203095514U publication Critical patent/CN203095514U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses a jack with an adjustable angle. The jack with the adjustable angle comprises a scissor jack, a supporting block is fixedly arranged and connected below the base of the scissor jack, the supporting block is in threaded connection with a second screw rod, the second screw rod is supported by a square frame, the square frame comprises two second supporting plates supporting the second screw rod and two third supporting plates parallel to the second screw rod, sliding grooves are respectively formed in the third supporting plates, and the supporting block is slidably arranged in the sliding grooves in a connecting mode. By utilizing the threaded connection mode of the screw rod, the second supporting plates and the third supporting plates, the jack can be aligned by slightly adjusting the screw rod. The shifting jack can be simply aligned by slightly adjusting the screw rod, complex ordinary procedures are reduced, and accuracy of the jack is guaranteed.

Description

A kind of jack of adjustable angle
Technical field
The utility model belongs to a kind of jack of adjustable angle.
Background technology
Jack is that a kind of the top with rigidity lifted part as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw.Can be divided into 3 kinds of rank-and-pinion jack, lifting screw and hydraulic jacks by architectural feature.Jack is the simplest weight-lifting equipment of a kind of lifting highly little (less than 1m).It has two kinds of mechanical type and fluid pressure types.The mechanical type jack has rack-and-pinion and spiral two kinds again, because hoisting capacity is little, the operation effort generally only is used for flight-line maintenance work, and is inapplicable in repairing the bridge process.Fluid pressure type jack structure compactness, stable working has self-locking action, so use extensively.Its shortcoming is that lifting is highly limited, and lifting velocity is slow.The kind of car jack can be divided into four kinds of rank-and-pinion jack, lifting screw and hydraulic jack and inflatable jacks.Car jack commonly used after the rising, jack out-of-position situation can occur in use once in a while, and usually, after this thing happens, the car owner had to lower under the jack earlier, again jack-up again.This method not only bothers very much, elapsed time, and can not guarantee skew once more of jack fully after the jack-up again.Needs are a kind of can be after jack be offset, the jack that need not rise again and just can align.
Summary of the invention
The utility model provides a kind of jack that can directly adjust deviation angle at the prior art deficiency.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of jack of adjustable angle, comprise first hold-down arm, second hold-down arm, the 3rd hold-down arm, the 4th hold-down arm, described first hold-down arm and the 3rd hold-down arm are flexibly connected by first active connection part, described second hold-down arm and the 4th hold-down arm are flexibly connected by second active connection part, first active connection part and second active connection part are all passed by a screw rod, described first hold-down arm and second hold-down arm support and connection place are provided with base, and described the 3rd hold-down arm and the 4th hold-down arm junction are provided with pallet.Described base below is fixedly connected with back-up block, described back-up block second screw rod that is threaded, described second screw rod is supported by square frame, described square frame comprises two No. two stay bearing plates supporting second screw rod and two No. three stay bearing plates of parallel second screw rod, respectively offer chute on described No. three stay bearing plates, described back-up block is slidingly connected in the chute.Utilize the mode that is threaded between screw rod and No. two stay bearing plates and No. three stay bearing plates, the fine setting screw rod just can be aligned jack.
In the technique scheme, described back-up block below is provided with pulley.Pulley makes things convenient for moving of back-up block on the one hand, has shared the part holding capacity of second screw rod on the other hand.
In the technique scheme, described second screw rod, one end is connected with handle, and conveniently second screw rod shakes.
The utility model compared with prior art has following beneficial effect: the utility model makes and the out-of-position jack takes place simply with its levelling by the fine setting screw rod, has deducted usual trivial step, and has guaranteed the accuracy of jack levelling.The back-up block below is provided with pulley, makes things convenient for moving of back-up block on the one hand, has shared the part holding capacity of second screw rod on the other hand.Second screw rod, one end is connected with handle, and conveniently second screw rod shakes.
Description of drawings
Fig. 1 is the scissors-type jack scheme drawing.
Fig. 2 is the utility model scheme drawing.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail: referring to Fig. 1 and Fig. 2, a kind of jack of adjustable angle, comprise first hold-down arm 1, second hold-down arm 2, the 3rd hold-down arm 3, the 4th hold-down arm 4, described first hold-down arm 1 and the 3rd hold-down arm 3 are flexibly connected by first active connection part 17, described second hold-down arm 2 and the 4th hold-down arm 4 are flexibly connected by second active connection part 18, first active connection part 17 and second active connection part 18 are all passed by a screw rod 7, described first hold-down arm 1 and 2 support and connection place of second hold-down arm are provided with base 5, and described the 3rd hold-down arm 3 and the 4th hold-down arm 4 junctions are provided with pallet 6.
Described base 5 belows are fixedly connected with back-up block 8, and back-up block 8 is thicker relatively, in order to adapt to the weight of jack.Described back-up block 8 second screw rod, 9, the second screw rods 9 that are threaded pass in the centre of back-up block 8, and back-up block 8 has screw thread at the position that second screw rod 9 passes, and 9 rotations of second screw rod drive back-up blocks 8 and move.Described second screw rod 9 is supported by square frame 10, and it is square that described square frame 10 comprises that 12, No. two stay bearing plates 11 of two No. three stay bearing plates of two No. two stay bearing plates 11 supporting second screw rod 9 and parallel second screw rod 9 and No. three stay bearing plates 12 are connected to each other one of formation.The two ends of described second screw rod 9 are passed 11, No. two stay bearing plates 11 of two No. two stay bearing plates respectively and are not exclusively fixed 9 of 11 pairs second screw rods of 9, No. two stay bearing plates of second screw rod and play a supportive role.Respectively offer chute 13 on described No. three stay bearing plates 12, described back-up block 8 is slidingly connected in the chute 13.The chute 13 of No. three stay bearing plates 12 also can play the effect of supported piece 8 to a certain extent.Utilize second screw rod 9 and the mode that back-up block 8 is threaded, finely tune second screw rod 9 and just jack can be aligned.
Described back-up block 8 belows are provided with pulley.Pulley makes things convenient for moving of back-up block 8 on the one hand, has shared the part holding capacity of second screw rod 9 on the other hand, because second screw rod 9 is also supporting back-up block 8 when passing back-up block 8.
Described second screw rod, 9 one ends are connected with handle 14, and conveniently second screw rod 9 shakes.
When using jack, still jack is risen, when after the rising jack out-of-position taking place, finely tune second screw rod 9, slowly back-up block 8 is moved, jack is aligned slowly with original mode.Method for needing before earlier jack to be descended and rises has not only deducted unnecessary step, saves time, and raises the efficiency, and has also guaranteed the validity of levelling jack, needn't worry to rise behind the jack, and jack still can be offset.

Claims (3)

1. the jack of an adjustable angle, comprise first hold-down arm (1), second hold-down arm (2), the 3rd hold-down arm (3), the 4th hold-down arm (4), described first hold-down arm (1) is flexibly connected by first active connection part (17) with the 3rd hold-down arm (3), described second hold-down arm (2) is flexibly connected by second active connection part (18) with the 4th hold-down arm (4), first active connection part (17) is all passed by a screw rod (7) with second active connection part (18), described first hold-down arm (1) is provided with base (5) with second hold-down arm (2) support and connection place, described the 3rd hold-down arm (3) is provided with pallet (6) with the 4th hold-down arm (4) junction, it is characterized in that: described base (5) below is fixedly connected with back-up block (8), described back-up block (8) second screw rod (9) that is threaded, described second screw rod (9) is supported by square frame (10), described square frame (10) comprises two No. two stay bearing plates (11) of support second screw rod (9) and two No. three stay bearing plates (12) of parallel second screw rod (9), respectively offer chute (13) on described No. three stay bearing plates (12), described back-up block (8) is slidingly connected in the chute (13).
2. the jack of a kind of adjustable angle as claimed in claim 1 is characterized in that: be provided with pulley below the described back-up block (8).
3. the jack of a kind of adjustable angle as claimed in claim 1, it is characterized in that: described second screw rod (9) one ends are connected with handle (14).
CN 201320101629 2013-03-06 2013-03-06 Jack with adjustable angle Withdrawn - After Issue CN203095514U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320101629 CN203095514U (en) 2013-03-06 2013-03-06 Jack with adjustable angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320101629 CN203095514U (en) 2013-03-06 2013-03-06 Jack with adjustable angle

Publications (1)

Publication Number Publication Date
CN203095514U true CN203095514U (en) 2013-07-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320101629 Withdrawn - After Issue CN203095514U (en) 2013-03-06 2013-03-06 Jack with adjustable angle

Country Status (1)

Country Link
CN (1) CN203095514U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103130145A (en) * 2013-03-06 2013-06-05 宁波天益齿轴齿轮有限公司 Angle-adjustable jack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103130145A (en) * 2013-03-06 2013-06-05 宁波天益齿轴齿轮有限公司 Angle-adjustable jack
CN103130145B (en) * 2013-03-06 2015-05-06 宁波天益齿轴齿轮有限公司 Angle-adjustable jack

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130731

Effective date of abandoning: 20150506

RGAV Abandon patent right to avoid regrant