CN2798142Y - Elevating mechanism - Google Patents
Elevating mechanism Download PDFInfo
- Publication number
- CN2798142Y CN2798142Y CN 200520055331 CN200520055331U CN2798142Y CN 2798142 Y CN2798142 Y CN 2798142Y CN 200520055331 CN200520055331 CN 200520055331 CN 200520055331 U CN200520055331 U CN 200520055331U CN 2798142 Y CN2798142 Y CN 2798142Y
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- CN
- China
- Prior art keywords
- nut
- screw
- thread
- internal
- internal threaded
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- Expired - Fee Related
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Abstract
The utility model discloses an elevating mechanism which comprises an internal screw-thread screw nut, a screw rod, an internal screw-thread sphere screw nut, and a thread sleeve, wherein the internal screw-thread sphere screw nut and a thread sleeve are matched with the screw rod; the outer surface of the internal screw-thread screw nut is provided with spiral teeth, one part of the internal cavity of the internal screw-thread screw nut is wide and the other part is narrow, and screw threads of the internal screw-thread screw nut are positioned on the end of the wide part; the internal screw-thread sphere screw nut is arranged on the position of the wide part of the internal cavity of the internal screw-thread screw nut where the wide part is not provided with screw threads; the outer surface of the thread sleeve is provided with screw threads, and the end of the wide part provided with screw threads of the internal screw-thread screw nut is screwed and sheathed with the thread sleeve which clogs the internal screw-thread sphere screw nut in the cavity body of the internal screw-thread sphere screw. The utility model has the advantages that the sphere screw nut is added to the screw nut of a common elevating mechanism, when the screw nut and the screw rod of the elevating mechanism with the structure are used cooperatively, the screw nut can tilt towards various directions on the screw rod and the angle between the screw nut and the screw rod can be properly adjusted at a definite range. The elevating mechanism which can flexibly adjust trajectory can be used in broad fields and can adapt the requirements of lifting inclination under a plurality of conditions.
Description
Technical field
The utility model relates to a kind of elevating mechanism, particularly relates to the elevating mechanism that is used for adjustment rack of the universal inclination of a kind of energy.
Background technology
A kind of elevating mechanism that is used for adjustment rack, be mainly used in fields such as projector, it mainly is made up of internal threaded nut, screw rod, and the outside surface of described internal threaded nut is provided with helical tooth, makes gear and internal threaded nut assemble one, when its nut-screw of the elevating mechanism of this structure is used, nut can only be on screw rod vertical moving, the angle between nut and the screw rod is fixed basically, with this kind elevating mechanism, object can only move on fixing track, can not adjust vergence direction.This elevating mechanism that can not adjust movement locus flexibly uses face narrower, can not adapt to the lifting demand under the more susceptible condition.
The utility model content
The purpose of this utility model is to overcome the defective that exists in the above-mentioned prior art, but the elevating mechanism of universal adjustment vergence direction between a kind of nut and the screw rod is provided.
The purpose of this utility model is achieved by the following technical programs:
A kind of elevating mechanism of the present utility model, it comprises internal threaded nut and screw rod, the outside surface of described internal threaded nut is provided with helical tooth, it is characterized in that: it also has internal thread spheroid nut and the swivel nut that is complementary with screw rod, a described internal threaded nut inner chamber part is wide, another part is narrow, the internal threaded nut screw thread is positioned at the end of wide part, described internal thread spheroid nut is installed in wide of internal threaded nut inner chamber not to be had on the position of screw thread, described swivel nut appearance mask screw thread, its rotation set is in wide threaded end of internal threaded nut, with the shutoff of spheroid nut in the internal threaded nut cavity.
For the spheroid nut that is positioned at internal threaded nut can freely be rotated, described internal threaded nut inner chamber wall contacts with the spheroid nut and partly is camber.
For the spheroid nut can be rotated freely further, described swivel nut and the contacted internal chamber wall of spheroid nut are camber.
Can drive internal threaded nut in order to ensure the spheroid nut rotates together, the outside wall surface of described spheroid nut is offered a groove vertically, and between internal threaded nut and spheroid nut groove, establish a pin, and pin one end is positioned at groove, and an end inserts in the internal threaded nut wall.
Advantage of the present utility model is: added the spheroid nut in the nut of common elevating mechanism, when its nut-screw of the elevating mechanism of this structure is used, nut can universal inclination on screw rod, angle between nut and the screw rod can be done suitable adjustment within the specific limits, this elevating mechanism that can adjust movement locus flexibly uses the field extensive, can adapt to the lifting inclination demand under the more susceptible condition.
The utility model can use in the adjustment rack of instruments such as projector.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation after Fig. 1 removes screw rod;
Fig. 3 is the exploded view of Fig. 2;
Fig. 3 a is the nut among Fig. 3;
Fig. 3 b is the spheroid nut among Fig. 3;
Fig. 3 c is the swivel nut among Fig. 3;
Fig. 3 d is the pin among Fig. 3;
Fig. 4 is that Fig. 1 uses the user mode figure in the projector adjustment rack.
Embodiment
Below in conjunction with specific embodiment this practicality newly is further described.
As Fig. 1,2,3, structure shown in 4 is one of embodiment of the present utility model, a kind of elevating mechanism of the present utility model, it comprises internal threaded nut 1, matching used screw rod 2, the internal thread spheroid nut 3 and the swivel nut 4 that are complementary with screw rod 2, the outside surface of described internal threaded nut 1 is provided with helical tooth 11, described internal threaded nut 1 an inner chamber part is wide, another part is narrow, the screw thread of internal threaded nut 1 is positioned at the end of wide part, described spheroid nut 3 is installed in wide of internal threaded nut 1 inner chamber not to be had on the position of screw thread, described swivel nut 4 appearance mask screw threads, its rotation set is in 1 wide threaded end of internal threaded nut, with 3 shutoff of spheroid nut in internal threaded nut 1 cavity; Described internal threaded nut 1 inner chamber wall contacts with spheroid nut 3 and partly is camber, so that spheroid nut 3 can freely rotate; The outside wall surface of described spheroid nut 3 is offered a groove 31 vertically, and between internal threaded nut 1 and spheroid nut groove 31, establish a pin 5, pin 5 one ends are positioned at groove 31, one ends and insert in the internal threaded nut wall, to guarantee that spheroid nut 3 can drive internal threaded nut 1 and rotate together.
Claims (5)
1. elevating mechanism, it comprises internal threaded nut and screw rod, the outside surface of described internal threaded nut is provided with helical tooth, it is characterized in that: it also has internal thread spheroid nut and the swivel nut that is complementary with screw rod, a described internal threaded nut inner chamber part is wide, another part is narrow, the internal threaded nut screw thread is positioned at the end of wide part, described internal thread spheroid nut is installed in wide of internal threaded nut inner chamber not to be had on the position of screw thread, described swivel nut appearance mask screw thread, its rotation set is in wide threaded end of internal threaded nut, with the shutoff of spheroid nut in the internal threaded nut cavity.
2. a kind of elevating mechanism according to claim 1 is characterized in that: described internal threaded nut inner chamber wall contacts with the spheroid nut and partly is camber.
3. a kind of elevating mechanism according to claim 1 and 2 is characterized in that: described swivel nut and the contacted internal chamber wall of spheroid nut are camber.
4. a kind of elevating mechanism according to claim 1 and 2, it is characterized in that: the outside wall surface of described spheroid nut is offered a groove vertically, and between internal threaded nut and spheroid nut groove, establish a pin, and pin one end is positioned at groove, and an end inserts in the internal threaded nut wall.
5. a kind of elevating mechanism according to claim 3, it is characterized in that: the outside wall surface of described spheroid nut is offered a groove vertically, and between internal threaded nut and spheroid nut groove, establish a pin, and pin one end is positioned at groove, and an end inserts in the internal threaded nut wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055331 CN2798142Y (en) | 2005-03-07 | 2005-03-07 | Elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055331 CN2798142Y (en) | 2005-03-07 | 2005-03-07 | Elevating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2798142Y true CN2798142Y (en) | 2006-07-19 |
Family
ID=36869390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520055331 Expired - Fee Related CN2798142Y (en) | 2005-03-07 | 2005-03-07 | Elevating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2798142Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764738A (en) * | 2017-10-26 | 2018-03-06 | 吉林建筑大学 | Steel fibre draw-off gear in a kind of concrete |
| CN109305391A (en) * | 2018-08-08 | 2019-02-05 | 上海宇航系统工程研究所 | Compress relieving mechanism and its method |
-
2005
- 2005-03-07 CN CN 200520055331 patent/CN2798142Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764738A (en) * | 2017-10-26 | 2018-03-06 | 吉林建筑大学 | Steel fibre draw-off gear in a kind of concrete |
| CN107764738B (en) * | 2017-10-26 | 2021-02-02 | 吉林建筑大学 | Steel fiber drawing device in concrete |
| CN109305391A (en) * | 2018-08-08 | 2019-02-05 | 上海宇航系统工程研究所 | Compress relieving mechanism and its method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060719 |