CN106044612A - Double-speed jack and working method thereof - Google Patents
Double-speed jack and working method thereof Download PDFInfo
- Publication number
- CN106044612A CN106044612A CN201610672741.3A CN201610672741A CN106044612A CN 106044612 A CN106044612 A CN 106044612A CN 201610672741 A CN201610672741 A CN 201610672741A CN 106044612 A CN106044612 A CN 106044612A
- Authority
- CN
- China
- Prior art keywords
- double
- lifting
- support
- nut
- speed
- 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.)
- Pending
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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
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
Abstract
The invention relates to a double-speed jack and a working method thereof. The double-speed jack comprises a machine base, wherein a lifting screw rod is arranged in the machine base in an interpenetrating manner; a twist rod is arranged at the upper end of the lifting screw rod in an interpenetrating manner in the radial direction; an involutive nut matched with the lifting screw rod is arranged below the twist rod; first hinge pins are symmetrically arranged on the front and back sides of the involutive nut in an interpenetrating manner; the two ends of the first hinge pins penetrate through the machine base; concave holes are symmetrically formed in the lower surfaces of the left and right sides of the involutive nut; handles are symmetrically hinged to the left and right sides of the machine base; and the upper ends of the handles are embedded in the concave holes. According to the double-speed jack, the structure is simple, the design is reasonable, the lifting speed of the jack can be adjusted, and the working efficiency and adjusting accuracy of the jack are effectively improved.
Description
Technical field:
The present invention relates to a kind of double-speed jack and method of work thereof.
Background technology:
It is known that screw jack is by screw pair transmission by manpower, the self-locking action of screw thread is relied on to support weight, structure
Simply, but its rising or falling speed is single, when carrying out the lifting of big distance, needs to spend more non-cutting time, when carrying out narrow spacing
When lifting, its Adjustment precision is poor, it is impossible to meet existing use demand.
Summary of the invention:
It is an object of the invention to provide a kind of double-speed jack and method of work thereof, be not only simple in structure, reasonable in design, and
The rising or falling speed of jack can be adjusted.
To achieve these goals, the technical solution used in the present invention is: a kind of double-speed jack, including support, described
Being equipped with lifting screw in support, the upper end edge of described lifting screw is radially equipped with shed stick, the lower section of described shed stick be provided with
The involution nut that lifting screw coordinates, before and after described involution nut, lateral symmetry is equipped with the first bearing pin, described first bearing pin
Two ends be each passed through support, the left and right sides lower surface symmetry of described involution nut offers shrinkage pool, the left and right of described support
Lateral symmetry is hinged with handle, and the upper end of described handle embeds in shrinkage pool.
Further, above-mentioned first bearing pin is vertical with the opening of involution nut, is provided with between described involution nut and support
The gap being displaced outwardly in order to involution nut.
Further, the left and right sides symmetry of above-mentioned support is equipped with the second bearing pin, the middle part socket of described second bearing pin
There is handle, be connected through flat spring between described handle and support.
Further, above-mentioned first bearing pin and the second bearing pin are vertically arranged.
Further, above-mentioned involution nut be arranged over the dust cap chimeric with support upper end.
The method of work of a kind of double-speed jack of the present invention, comprises the steps of:
(1) lifting at a slow speed: be turned out handle so that involution nut compresses lifting screw, hand rotation shed stick drives lifting spiral shell
Bar lifts at a slow speed；
(2) fast lifting: inwardly turning handle so that involution nut unclamps lifting screw, hand rotation shed stick drives lifting spiral shell
Bar fast lifting.
Compared with prior art, the present invention has the effect that this double-speed jack simple in construction, easy to operate, adjustable
The rising or falling speed of joint lifting screw, is effectively improved work efficiency and the degree of regulation of jack.
Accompanying drawing illustrates:
Fig. 1 is the organigram of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the B-B sectional view of Fig. 1.
In figure:
1-support；2-lifting screw；3-shed stick；4-involution nut；5-handle；6-the first bearing pin；7-the second bearing pin；8-sheet bullet
Spring；9-dust cap；10-pushes up pad.
Detailed description of the invention:
The present invention will be further described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
As Figure 1-3, this bright double-speed jack, including support 1, in described support 1, it is equipped with lifting screw 2, described
The upper end edge of lifting screw 2 is radially equipped with shed stick 3, and the lower section of described shed stick 3 is provided with the involution nut coordinated with lifting screw 2
4, before and after described involution nut 4, lateral symmetry is equipped with the first bearing pin 6, and the two ends of described first bearing pin 6 are each passed through support
1, the left and right sides lower surface symmetry of described involution nut 4 offers shrinkage pool, and the left and right sides symmetry of described support 1 is hinged with hands
Handle 5, the upper end of described handle 5 embeds in shrinkage pool, i.e. by outwardly or inwardly turning handle 5, and then adjusts involution nut 4 and rises
The tightness of fall screw rod 2, is rotated further by shed stick 3, drives lifting screw 2 to lift with different rotating speeds via shed stick 3.
In the present embodiment, above-mentioned first bearing pin 6 is vertical with the opening of involution nut 4, described involution nut 4 and support 1 it
Between to be provided with the gap being displaced outwardly in order to involution nut 4, i.e. involution nut 4 inside along the first bearing pin 6 under the drive of handle 5
Or be displaced outwardly, change the tightness of involution nut 4 and lifting screw.
In the present embodiment, the left and right sides symmetry of above-mentioned support 1 is equipped with the second bearing pin 7, the middle part of described second bearing pin 7
It is socketed with handle 5, i.e. handle 5 to rotate around the second bearing pin 7, is connected through flat spring 8 between described handle 5 and support 1, with
Improve the bonding strength of handle 5.
In the present embodiment, above-mentioned first bearing pin 6 and the second bearing pin 7 are vertically arranged so that involution nut 4 and handle 5
The direction of motion is identical, it is ensured that the stationarity of involution nut 4 motion.In the present embodiment, being arranged over and machine of above-mentioned involution nut 4
The dust cap 9 that seat 1 upper end is chimeric, i.e. involution nut 4 is located at inside the upper end of support 1, avoids dust and other impurities by dust cap 9
Affect service behaviour and the operating accuracy of involution nut 4.
In the present embodiment, the top of above-mentioned lifting screw 2 is provided with top pad 10.
In the present embodiment, when lifting at a distance, the most inwardly turning handle 5, makes involution nut 4 unclamp lifting spiral shell
Bar 2, is rotated further by shed stick 3, it is achieved the fast lifting of lifting screw 2, improves work efficiency, shorten when ejecting when assisting in a large number
Between；When carrying out short distance lifting, in order to improve the precision of lifting, first it is turned out handle 5, makes involution nut 4 compress lifting
Screw rod 2, is rotated further by shed stick 3, it is achieved the lifting at a slow speed of lifting screw 2, improves lifting precision；The present invention efficiently solves tradition spiral shell
Rotation jack ejects the difficult problem that speed is single, and labor aptitude is strong.
The method of work of a kind of double-speed jack of the present invention, comprises the steps of:
(1) lifting at a slow speed: be turned out handle 5, the upper end of handle 5 acts on recess, and then promotes involution nut 4 along near rising
Fall screw rod 2 direction is moved so that involution nut 4 compresses lifting screw 2, hand rotation shed stick 3, drives lifting spiral shell by shed stick 3
Bar 2 is to lift at a slow speed；
(2) fast lifting: inwardly turning handle 5, the upper end of handle 5 acts on recess, and then promotes involution nut 4 along away from liter
Fall screw rod 2 direction is moved so that involution nut 4 unclamps lifting screw 2, hand rotation shed stick 3, drives lifting spiral shell by shed stick 3
Bar 2 is with fast lifting.
In the present embodiment, operator can regulate the pine of involution nut 4 and lifting screw 2 according to practical situation by handle 5
Tight degree, ejects realizing the double speed of jack, and labor aptitude is strong.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modify, all should belong to the covering scope of the present invention.
Claims (6)
1. a double-speed jack, it is characterised in that: include support, in described support, be equipped with lifting screw, described lifting spiral shell
The upper end edge of bar is radially equipped with shed stick, and the lower section of described shed stick is provided with the involution nut coordinated with lifting screw, described involutory
Before and after nut, lateral symmetry is equipped with the first bearing pin, and the two ends of described first bearing pin are each passed through support, described involution nut
Left and right sides lower surface symmetry offer shrinkage pool, the left and right sides symmetry of described support is hinged with handle, described handle upper
End embeds in shrinkage pool.
Double-speed jack the most according to claim 1, it is characterised in that: described first bearing pin hangs down with the opening of involution nut
Directly, the gap being displaced outwardly in order to involution nut it is provided with between described involution nut and support.
Double-speed jack the most according to claim 2, it is characterised in that: the left and right sides symmetry of described support is equipped with
Two bearing pins, the middle part of described second bearing pin is socketed with handle, is connected through flat spring between described handle and support.
Double-speed jack the most according to claim 3, it is characterised in that: described first bearing pin and the second bearing pin vertically set
Put.
Double-speed jack the most according to claim 4, it is characterised in that: described involution nut be arranged over on support
The dust cap that end is chimeric.
6. the method for work of a double-speed jack, it is characterised in that: include any one pair as described in claim 1 ~ 5
Speed jack, comprises the steps of:
(1) lifting at a slow speed: be turned out handle so that involution nut compresses lifting screw, hand rotation shed stick drives lifting spiral shell
Bar lifts at a slow speed；
(2) fast lifting: inwardly turning handle so that involution nut unclamps lifting screw, hand rotation shed stick drives lifting spiral shell
Bar fast lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672741.3A CN106044612A (en) | 2016-08-16 | 2016-08-16 | Double-speed jack and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610672741.3A CN106044612A (en) | 2016-08-16 | 2016-08-16 | Double-speed jack and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106044612A true CN106044612A (en) | 2016-10-26 |
Family
ID=57480518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610672741.3A Pending CN106044612A (en) | 2016-08-16 | 2016-08-16 | Double-speed jack and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106044612A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1134818B (en) * | 1954-09-23 | 1962-08-16 | Beka St Aubin A G | Telescopically extendable support for formwork, work scaffolding, etc. like |
| EP0349485B1 (en) * | 1988-06-28 | 1992-01-22 | Etablissement Nanicoba | Strut |
| EP0522230A1 (en) * | 1991-06-13 | 1993-01-13 | Shinwa Kabushiki Kaisha | Jack for supporting construction works |
| CN1117018A (en) * | 1994-08-18 | 1996-02-21 | 范朝来 | Rapid rising-falling jack |
| CN2220461Y (en) * | 1995-04-21 | 1996-02-21 | 田稼 | Quick lifting jack |
| CN2444082Y (en) * | 2000-10-27 | 2001-08-22 | 李向华 | Screw nut for body building apparatus |
| CN2511660Y (en) * | 2001-12-13 | 2002-09-18 | 李子阳 | Quick-speed jack |
| CN200960840Y (en) * | 2006-10-08 | 2007-10-17 | 科星（中山）汽车设备有限公司 | Tyre dismounting locking device |
| CN103818843A (en) * | 2014-03-21 | 2014-05-28 | 常熟市碧溪起重吊装设备制造厂 | Screw jack |
| CN205933045U (en) * | 2016-08-16 | 2017-02-08 | 福州大学 | Double speed jack |
-
2016
- 2016-08-16 CN CN201610672741.3A patent/CN106044612A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1134818B (en) * | 1954-09-23 | 1962-08-16 | Beka St Aubin A G | Telescopically extendable support for formwork, work scaffolding, etc. like |
| EP0349485B1 (en) * | 1988-06-28 | 1992-01-22 | Etablissement Nanicoba | Strut |
| EP0522230A1 (en) * | 1991-06-13 | 1993-01-13 | Shinwa Kabushiki Kaisha | Jack for supporting construction works |
| CN1117018A (en) * | 1994-08-18 | 1996-02-21 | 范朝来 | Rapid rising-falling jack |
| CN2220461Y (en) * | 1995-04-21 | 1996-02-21 | 田稼 | Quick lifting jack |
| CN2444082Y (en) * | 2000-10-27 | 2001-08-22 | 李向华 | Screw nut for body building apparatus |
| CN2511660Y (en) * | 2001-12-13 | 2002-09-18 | 李子阳 | Quick-speed jack |
| CN200960840Y (en) * | 2006-10-08 | 2007-10-17 | 科星（中山）汽车设备有限公司 | Tyre dismounting locking device |
| CN103818843A (en) * | 2014-03-21 | 2014-05-28 | 常熟市碧溪起重吊装设备制造厂 | Screw jack |
| CN205933045U (en) * | 2016-08-16 | 2017-02-08 | 福州大学 | Double speed jack |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |