CN202575851U - Bidirectional lifting jack - Google Patents
Bidirectional lifting jack Download PDFInfo
- Publication number
- CN202575851U CN202575851U CN 201220121923 CN201220121923U CN202575851U CN 202575851 U CN202575851 U CN 202575851U CN 201220121923 CN201220121923 CN 201220121923 CN 201220121923 U CN201220121923 U CN 201220121923U CN 202575851 U CN202575851 U CN 202575851U
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- China
- Prior art keywords
- connecting device
- screw mandrel
- way jack
- utility
- model
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- Expired - Lifetime
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Abstract
The utility model relates to a bidirectional lifting jack. The bidirectional lifting jack comprises a shell, wherein the shell is internally provided with a screw rod, the upper end of the screw rod is in threaded connection with a guide sleeve, the lower end of the screw rod is connected with a bearing, the upper end of the guide sleeve is fixedly connected with a first connecting device, and the lower end of the shell is provided with a second connecting device. According to the bidirectional lifting jack disclosed by the utility model, the defect that the traditional lifting jack just can be used for lifting a load is overcome, and the use is convenient.
Description
Technical field
The utility model relates to a kind of jack, particularly a kind of two-way jack.
Background technology
Jack is the simplest weight-lifting equipment of a kind of lifting highly little (less than 1m); Jack commonly used generally only is used for jacking load; When work in some place, for example in switching mechanism or the supporting mechanism, both needed jacking load; Need identical after the jacking or cooresponding load be retracted again, jack commonly used can not satisfy this kind needs.
The utility model content
The goal of the invention of the utility model is: to the problem that prior art exists, a kind of two-way jack that can jacking can retract again is provided.
To achieve these goals, the technical scheme of the utility model employing is:
A kind of two-way jack comprises housing, is provided with screw mandrel in the said housing, the orienting sleeve that is threaded on the said screw mandrel, and said screw mandrel lower end connection bearing, said orienting sleeve upper end captive joint first connecting device, said housing lower end is provided with second connecting device.During work, said first connecting device and second connecting device are connected respectively on two devices, rotary screw rod, and the cooperation rotation through screw thread makes the orienting sleeve jacking that makes progress, and in the time of need retracting, the contrarotation screw mandrel gets final product.
Preferably, said first connecting device is provided with connecting bore.
Preferably, said bearing is two-way bearing, and two-way bearing can bear the effect of rightabout power, and is when this two-way jack is worked, not fragile.
Preferably, said second connecting device is a flange, said flange connection sleeve.
Preferably, said screw mandrel lower end bonded assembly bearing connects bevel gear through coupler, and said bevel gear is positioned at sleeve inner.Bevel gear is used for manually auxiliary rotary screw, easy to use and maintenance.
Above-mentioned two-way jack also comprises displacement pickup or scale, said displacement pickup or scale between the said housing and first connecting device,
Above-mentioned two-way jack also comprises coder, and described coder is installed in the rotating shaft of coupler or bevel gear.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
When the two-way jack of the utility model is worked; Said first connecting device and second connecting device are connected respectively on two devices, and rotary screw rod is through the cooperation rotation of screw thread; Make the orienting sleeve jacking that makes progress; In the time of need retracting, the contrarotation screw mandrel gets final product, and has overcome the shortcoming that traditional jack can only be used for jacking load; Through coder or displacement pickup load jacking or the displacement that retracts are transferred on the exterior display device and show, be convenient to accuracy control.
Description of drawings
Fig. 1 is the contour structures scheme drawing of the utility model;
Fig. 2 is the structural representation of two-way jack among the utility model embodiment 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the right elevation of Fig. 2;
Fig. 5 is the structural representation of two-way jack among the utility model embodiment 2.
Mark among the figure: 1-screw mandrel, 2-housing, 3-orienting sleeve, 4-first connecting device, 5-bearing, 6-second connecting device, 7-sleeve, 8-bevel gear, 9-connecting bore, 10-coupler, 11-coder, 12-displacement pickup.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment 1
To shown in Figure 4, the two-way jack of present embodiment comprises housing 2 like Fig. 1; Be provided with screw mandrel 1 in the said housing 2, the said screw mandrel 1 upper end orienting sleeve 3 that is threaded; Said screw mandrel 1 lower end is connected with bearing 5, and said bearing 5 is two-way bearing, can bear the effect of rightabout power; Said orienting sleeve 3 upper end captive joints first connecting device 4, said housing 2 lower ends are provided with second connecting device 6.During work, said first connecting device 4 and second connecting device 6 are connected respectively on two devices, and rotary screw rod 1 through the cooperation rotation of screw thread, makes orienting sleeve 3 upwards jackings, and in the time of need retracting, contrarotation screw mandrel 1 gets final product.Wherein, said first connecting device is provided with connecting bore 9, connecting device when easy to use, and said second connecting device 6 is a flange, said flange connection sleeve 7.Said screw mandrel 1 lower end bonded assembly bearing 5 connects bevel gear 8 through coupler 10, and said bevel gear 8 is positioned at said sleeve 7 inside.Said bevel gear 8 is used for manually auxiliary rotary screw 1, easy to use and maintenance.As a kind of improvement, the two-way jack of present embodiment also comprises coder 11, and described coder 11 is installed in the rotating shaft of bevel gear 8, is used for load jacking or the displacement that retracts be transferred on the exterior display device showing, is convenient to accuracy control.In other embodiment of the utility model, said coder 11 also can be installed in the rotating shaft of coupler 10.
As shown in Figure 5; Present embodiment is similar with embodiment 1; Its difference is: present embodiment adopts displacement pickup 12 replacement coders 11, load jacking or the displacement that retracts is transferred on the exterior display device show, is convenient to accuracy control; Said displacement pickup 12 also can use scale through human eye observation load jacking or the displacement that retracts between the said housing 2 and first connecting device 4.
When the two-way jack of the utility model is worked; Said first connecting device and second connecting device are connected respectively on two devices, and rotary screw rod is through the cooperation rotation of screw thread; Make the orienting sleeve jacking that makes progress; In the time of need retracting, the contrarotation screw mandrel gets final product, and has overcome the shortcoming that traditional jack can only be used for jacking load; Through the setting of coder or displacement pickup, load jacking or the displacement that retracts be transferred on the exterior display device show, be convenient to accuracy control.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. a two-way jack comprises housing, is provided with screw mandrel in the said housing; The said screw mandrel upper end orienting sleeve that is threaded is characterized in that said screw mandrel lower end connection bearing; Said orienting sleeve upper end captive joint first connecting device, said housing lower end is provided with second connecting device.
2. two-way jack according to claim 1 is characterized in that, said first connecting device is provided with connecting bore.
3. two-way jack according to claim 1 is characterized in that, said bearing is two-way bearing.
4. two-way jack according to claim 1 is characterized in that, said second connecting device is a flange, said flange connection sleeve.
5. two-way jack according to claim 4 is characterized in that, said screw mandrel lower end bonded assembly bearing connects bevel gear through coupler, and said bevel gear is positioned at said sleeve inner.
6. according to each described two-way jack of claim 1 to 5, it is characterized in that also comprise displacement pickup or scale, said displacement pickup or scale are between the housing and first connecting device.
7. according to each described two-way jack of claim 1 to 5, it is characterized in that also comprise coder, said coder is installed in the rotating shaft of coupler or bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121923 CN202575851U (en) | 2012-03-28 | 2012-03-28 | Bidirectional lifting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121923 CN202575851U (en) | 2012-03-28 | 2012-03-28 | Bidirectional lifting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202575851U true CN202575851U (en) | 2012-12-05 |
Family
ID=47245287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220121923 Expired - Lifetime CN202575851U (en) | 2012-03-28 | 2012-03-28 | Bidirectional lifting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202575851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318800A (en) * | 2013-04-27 | 2013-09-25 | 兖矿东华建设有限公司 | Jack sensor and corresponding hydraulic sliding module digital control system |
| CN104609330A (en) * | 2015-01-21 | 2015-05-13 | 巨隆液压设备(集团)有限公司 | Bidirectional hydraulic jack |
-
2012
- 2012-03-28 CN CN 201220121923 patent/CN202575851U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318800A (en) * | 2013-04-27 | 2013-09-25 | 兖矿东华建设有限公司 | Jack sensor and corresponding hydraulic sliding module digital control system |
| CN103318800B (en) * | 2013-04-27 | 2015-04-29 | 兖矿东华建设有限公司 | Jack sensor and corresponding hydraulic sliding module digital control system |
| CN104609330A (en) * | 2015-01-21 | 2015-05-13 | 巨隆液压设备(集团)有限公司 | Bidirectional hydraulic jack |
| CN104609330B (en) * | 2015-01-21 | 2017-02-22 | 巨隆液压设备(集团)有限公司 | Bidirectional hydraulic jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |