CN203641424U - Novel screw stem component - Google Patents
Novel screw stem component Download PDFInfo
- Publication number
- CN203641424U CN203641424U CN201320675540.0U CN201320675540U CN203641424U CN 203641424 U CN203641424 U CN 203641424U CN 201320675540 U CN201320675540 U CN 201320675540U CN 203641424 U CN203641424 U CN 203641424U
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- CN
- China
- Prior art keywords
- sleeve
- center hole
- screw
- screwed pipe
- nut
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- Expired - Fee Related
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Abstract
The utility model discloses a novel screw stem component. The novel screw stem component comprises a screw stem, a middle screw tube and a sleeve, wherein the lower end part of the screw stem is embedded in a screw tube center hole of a middle screw stem; the lower end part of the middle screw tube is embedded in a sleeve center hole of the sleeve; a middle sleeve nut is screwed in the upper end part of the screw tube center hole, a first outer screw tooth on the periphery wall of the screw stem is meshed with a first inner screw tooth of a nut center hole at the core part of the middle sleeve nut, the upper end part of the sleeve is matched with a connecting jacket, and a second outer screw tooth on the periphery wall of the middle screw tube is meshed with a second inner screw tooth of the connecting jacket center hole at the core part of the connecting jacket. While in work, the screw stem rotates and drives the middle sleeve nut and the middle screw tube to move up and down, and when the middle sleeve nut and the middle screw tube move to a limit position, the connecting jacket and the sleeve continue to move up and down. The novel screw stem component adopts the design of a double-stroke structure. The novel screw stem component has the advantages of novel structure design and long stroke.
Description
Technical field
The utility model relates to screw technique field, relates in particular to a kind of new-type screw arbor assembly.
Background technique
Existing screw arbor assembly is generally made up of a screw rod and a nut matching with screw rod, and the in the situation that of bolt rotary, nut moves along screw rod.
But the nut of existing screw arbor assembly can only be realized one-stroke motion, stroke is shorter.
Summary of the invention
The purpose of this utility model is to provide a kind of new-type screw arbor assembly for the deficiencies in the prior art, and this new-type screw arbor assembly structural design novelty and stroke are long.
For achieving the above object, the utility model is achieved through the following technical solutions.
A kind of new-type screw arbor assembly, include the screw rod of vertical extension, the lower end side of screw rod is equiped with the middle screwed pipe of vertical extension, the core of middle screwed pipe offers the screwed pipe center hole running through completely up and down, the underpart of screw rod can relatively vertically be flush-mounted in screwed pipe center hole actively, the lower end side of middle screwed pipe is equiped with the sleeve pipe of vertical extension, and the core of sleeve pipe offers the sleeve pipe center hole running through completely up and down, and the underpart of middle screwed pipe can relatively vertically be flush-mounted in sleeve pipe center hole actively; The periphery wall of screw rod is provided with the first external screw thread, the screwed pipe center hole upper end portion of middle screwed pipe is screwed with middle sleeve nut, the core of middle sleeve nut offers the nut center hole running through completely up and down, the inner circle wall of nut center hole is provided with the first internal screw thread, and the first external screw thread engages with the first internal screw thread; The upper end portion of sleeve pipe is fitted with connecting sleeve, the core of connecting sleeve offers the connecting sleeve center hole running through completely up and down, the inner circle wall of connecting sleeve center hole is provided with the second internal screw thread, and the periphery wall of middle screwed pipe is provided with the second external screw thread, and the second external screw thread engages with the second internal screw thread.
Wherein, described connecting sleeve is embedded in the upper end portion of described sleeve pipe center hole.
Wherein, the screwed pipe center hole underpart of described middle screwed pipe is screwed with fixed base.
Wherein, the underpart of described screw rod is screwed with stop nut in the lower end side of described the first external screw thread.
The beneficial effects of the utility model are: the new-type screw arbor assembly of one described in the utility model, it comprises screw rod, middle screwed pipe and sleeve pipe, screw rod underpart is flush-mounted in the screwed pipe center hole of middle screw rod, middle screwed pipe underpart is flush-mounted in the sleeve pipe center hole of sleeve pipe, screw rod periphery wall arranges the first external screw thread, screwed pipe center hole upper end portion spiral shell dress middle sleeve nut, the nut center hole inner circle wall of middle sleeve nut core arranges the first internal screw thread, sleeve pipe upper end portion is equipped with connecting sleeve, the connecting sleeve center hole inner circle wall of connecting sleeve core arranges the second internal screw thread, the periphery wall of middle screwed pipe arranges the second external screw thread.In the time of bolt rotary, by the first external screw thread, relative screw rod moves up and down middle sleeve nut with the first internal screw thread cooperation, and middle screwed pipe is along with the relative screw rod of middle sleeve nut moves up and down; In the middle of sleeve pipe nut move to limit position and stop when mobile, screw rod, middle sleeve nut and middle screw rod are relatively static, now, by the second external screw thread, relative middle screwed pipe moves up and down connecting sleeve with the second internal screw thread cooperation, and along with connecting sleeve, relatively middle screwed pipe moves up and down sleeve pipe.The utility model adopts double-stroke structural design, designs by said structure, the utlity model has the long advantage of structural design novelty and stroke.
Brief description of the drawings
Utilize accompanying drawing to be further detailed the utility model below, but the embodiment in accompanying drawing does not form any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation at another visual angle of the utility model.
Fig. 3 is generalized section of the present utility model.
Fig. 4 is decomposing schematic representation of the present utility model.
In Fig. 1 to Fig. 4, include:
1---screw rod 2---middle screwed pipe
21---screwed pipe center hole 3---sleeve pipe
31---sleeve pipe center hole 4---middle sleeve nut
5---connecting sleeve 6---fixed base
7---stop nut.
Embodiment
Below in conjunction with concrete mode of execution, the utility model is described.
As shown in Figures 1 to 4, a kind of new-type screw arbor assembly, include the screw rod 1 of vertical extension, the lower end side of screw rod 1 is equiped with the middle screwed pipe 2 of vertical extension, the core of middle screwed pipe 2 offers the screwed pipe center hole 21 running through completely up and down, the underpart of screw rod 1 can relatively vertically be flush-mounted in screwed pipe center hole 21 actively, the lower end side of middle screwed pipe 2 is equiped with the sleeve pipe 3 of vertical extension, the core of sleeve pipe 3 offers the sleeve pipe center hole 31 running through completely up and down, and the underpart of middle screwed pipe 2 can relatively vertically be flush-mounted in sleeve pipe center hole 31 actively; The periphery wall of screw rod 1 is provided with the first external screw thread, screwed pipe center hole 21 upper end portions of middle screwed pipe 2 are screwed with middle sleeve nut 4, the core of middle sleeve nut 4 offers the nut center hole running through completely up and down, the inner circle wall of nut center hole is provided with the first internal screw thread, and the first external screw thread engages with the first internal screw thread; The upper end portion of sleeve pipe 3 is fitted with connecting sleeve 5, the core of connecting sleeve 5 offers connecting sleeve 5 center holes that run through completely up and down, the inner circle wall of connecting sleeve 5 center holes is provided with the second internal screw thread, and the periphery wall of middle screwed pipe 2 is provided with the second external screw thread, and the second external screw thread engages with the second internal screw thread.
In the utility model working procedure, the upper end portion of screw rod 1 is connected with corresponding motor apparatus, and sleeve pipe 3 is connected with corresponding transmission part; In the time that screw rod 1 rotates, by the first external screw thread, relative screw rod 1 moves up and down middle sleeve nut 4 with the first internal screw thread cooperation, and middle screwed pipe 2 is along with the relative screw rod 1 of middle sleeve nut 4 moves up and down; In the middle of sleeve pipe nut 4 move to limit position and stop when mobile, screw rod 1, middle sleeve nut 4 and middle screw rod 1 are relatively static, now, by the second external screw thread, relative middle screwed pipe 2 moves up and down connecting sleeve 5 with the second internal screw thread cooperation, and along with connecting sleeve 5, relatively middle screwed pipe 2 moves up and down sleeve pipe 3.
The utility model adopts double-stroke structural design, designs by said structure, the utlity model has the long advantage of structural design novelty and stroke.
Need further to explain, connecting sleeve 5 of the present utility model can adopt inlay card mode and be mounted on the upper end portion of sleeve pipe center hole 31; Certainly, above-mentioned assembling mode does not form restriction of the present utility model, and connecting sleeve 5 can also adopt other assembling mode to be mounted on the upper end portion of sleeve pipe center hole 31.
Wherein, screwed pipe center hole 21 underparts of middle screwed pipe 2 are screwed with fixed base 6; Need further to explain, fixed base 6 of the present utility model has position-limiting action, and in the time that the relative connecting sleeve 5 of middle screwed pipe 2 is moved upward to limit position, in the middle of fixed base 6 can prevent effectively, screwed pipe 2 exits connecting sleeve 5.
In addition, the underpart of screw rod 1 is screwed with stop nut 7 in the lower end side of the first external screw thread; Need further to explain, stop nut 7 of the present utility model has position-limiting action, and in the time that screw rod 1 phase centring sleeve nut 4 is moved upward to limit position, stop nut 7 can prevent that screw rod 1 from exiting middle sleeve nut 4 effectively.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a new-type screw arbor assembly, it is characterized in that: the screw rod (1) that includes vertical extension, the lower end side of screw rod (1) is equiped with the middle screwed pipe (2) of vertical extension, the core of middle screwed pipe (2) offers the screwed pipe center hole (21) running through completely up and down, the underpart of screw rod (1) can relatively vertically be flush-mounted in screwed pipe center hole (21) actively, the lower end side of middle screwed pipe (2) is equiped with the sleeve pipe (3) of vertical extension, the core of sleeve pipe (3) offers the sleeve pipe center hole (31) running through completely up and down, the underpart of middle screwed pipe (2) can relatively vertically be flush-mounted in sleeve pipe center hole (31) actively, the periphery wall of screw rod (1) is provided with the first external screw thread, screwed pipe center hole (21) upper end portion of middle screwed pipe (2) is screwed with middle sleeve nut (4), the core of middle sleeve nut (4) offers the nut center hole running through completely up and down, the inner circle wall of nut center hole is provided with the first internal screw thread, and the first external screw thread engages with the first internal screw thread, the upper end portion of sleeve pipe (3) is fitted with connecting sleeve (5), the core of connecting sleeve (5) offers connecting sleeve (5) center hole running through completely up and down, the inner circle wall of connecting sleeve (5) center hole is provided with the second internal screw thread, the periphery wall of middle screwed pipe (2) is provided with the second external screw thread, and the second external screw thread engages with the second internal screw thread.
2. the new-type screw arbor assembly of one according to claim 1, is characterized in that: described connecting sleeve (5) is embedded in the upper end portion of described sleeve pipe center hole (31).
3. the new-type screw arbor assembly of one according to claim 2, is characterized in that: in the middle of described, screwed pipe center hole (21) underpart of screwed pipe (2) is screwed with fixed base (6).
4. the new-type screw arbor assembly of one according to claim 3, is characterized in that: the underpart of described screw rod (1) is screwed with stop nut (7) in the lower end side of described the first external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675540.0U CN203641424U (en) | 2013-10-30 | 2013-10-30 | Novel screw stem component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675540.0U CN203641424U (en) | 2013-10-30 | 2013-10-30 | Novel screw stem component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641424U true CN203641424U (en) | 2014-06-11 |
Family
ID=50872671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320675540.0U Expired - Fee Related CN203641424U (en) | 2013-10-30 | 2013-10-30 | Novel screw stem component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662007A (en) * | 2018-04-28 | 2018-10-16 | 杭州萧冠机械有限公司 | EPB integrated forms inhaul cable assembly and its mode of production |
| CN110604603A (en) * | 2018-06-14 | 2019-12-24 | 江苏风和医疗器材股份有限公司 | Driving mechanism and electric anastomat |
-
2013
- 2013-10-30 CN CN201320675540.0U patent/CN203641424U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662007A (en) * | 2018-04-28 | 2018-10-16 | 杭州萧冠机械有限公司 | EPB integrated forms inhaul cable assembly and its mode of production |
| CN108662007B (en) * | 2018-04-28 | 2020-06-16 | 杭州萧冠机械有限公司 | EPB integrated inhaul cable assembly and production method thereof |
| CN110604603A (en) * | 2018-06-14 | 2019-12-24 | 江苏风和医疗器材股份有限公司 | Driving mechanism and electric anastomat |
| CN110604603B (en) * | 2018-06-14 | 2021-09-07 | 江苏风和医疗器材股份有限公司 | Driving mechanism and electric anastomat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141030 |
|
| EXPY | Termination of patent right or utility model |