CN2637807Y - Variable pitch screw - Google Patents
Variable pitch screw Download PDFInfo
- Publication number
- CN2637807Y CN2637807Y CN 03259684 CN03259684U CN2637807Y CN 2637807 Y CN2637807 Y CN 2637807Y CN 03259684 CN03259684 CN 03259684 CN 03259684 U CN03259684 U CN 03259684U CN 2637807 Y CN2637807 Y CN 2637807Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- adjusting nut
- thread
- section
- sections
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a screw rod, in particular to a screw rod with changeable thread pitch. According to the design proposal of the utility, at least one normal thread section and a thread section with a changeable thread pitch and a larger thread pitch than a normal thread are mutually connected and arranged on the screw rod. At least a jack extending outside the inner wall of the adjusting nut is arranged on the adjusting nut, the outer end of the jack is arranged in the thread slots of the screw rod, and the adjusting nut is engaged with the screw rod through the jack. The screw rod can swiftly adjust the thread pitch and enhance the working efficiency.
Description
Technical field
The utility model relates to a kind of screw rod, refers in particular to the variable screw rod of a kind of pitch.
Background technique
In devices such as medical apparatus, often need use a kind of mechanism that regulates length.In the prior art, the constant screw rod of normally a kind of pitch of this device, its defective is: because the pitch of screw rod is all the same, therefore, when the needs adjustable range, can only regulate step by step, the time is long.
The model utility content
The purpose of this utility model is to design a kind of Variable pitch screw, uses with convenient.
The design proposal that provides according to the utility model, on screw rod, have one section conventional thread section and one section long gaining twist section of the conventional screw thread of pitch ratio of being bonded with each other at least, a fore-set that stretches out the inwall of adjusting nut is set on adjusting nut at least, the outer end of this fore-set is positioned at the thread groove on the screw rod, and adjusting nut utilizes this fore-set and screw engages.
End at screw rod is provided with draw-in groove.End at adjusting nut is provided with the enlarged portion that expands outwardly, and forms cavity in enlarged portion, in the end of cavity end socket is set.As a kind of optimum scheme, two sections conventional thread sections can be set on screw rod, again the gaining twist section is arranged between two sections conventional thread sections.
Owing between two sections conventional thread sections, be provided with one section gaining twist section, when rotating adjusting nut to the gaining twist section, just can advance fast, thereby avoided the adjusting nut number of revolution too much, change the problem of overlong time.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Embodiment
As shown in the figure: on screw rod 8, have one section conventional thread section and one section long gaining twist section 4 of the conventional screw thread of pitch ratio of being bonded with each other at least, a fore-set 5 that stretches out the inwall of adjusting nut 2 is set on adjusting nut 2 at least, the outer end of this fore-set 5 is positioned at the thread groove 6 on the screw rod, and adjusting nut 1 utilizes this fore-set 5 and screw rod 8 engagements.Adjusting nut 2 utilizes fore-set 5 to cooperate with thread groove 6 on the screw rod 8, therefore, no matter how pitch changes, can guarantee that all it is meshing with each other.
In the end of screw rod 8 draw-in groove 9 is set, utilizes this draw-in groove 9 to be connected, as the end that is used for digestive tract stapler or sews up device during the nail seat, just can be connected with the associated components of end nail with other member.End at adjusting nut 2 is provided with the enlarged portion that expands outwardly, and forms cavity in enlarged portion, in the end of cavity end socket 1 is set.
As a kind of reasonable embodiment, two sections conventional thread sections 3,7 can be set on screw rod 8, again gaining twist section 4 is arranged between two sections conventional thread sections 3,7.
Claims (4)
1, Variable pitch screw, it is characterized in that: on screw rod (8), have one section conventional thread section and one section long gaining twist section (4) of the conventional screw thread of pitch ratio of being bonded with each other at least, a fore-set (5) that stretches out the inwall of adjusting nut (2) is set on adjusting nut (2) at least, the outer end of this fore-set (5) is positioned at the thread groove (6) on the screw rod, and adjusting nut (1) utilizes this fore-set (5) and screw rod (8) engagement.
2, screw rod according to claim 1 is characterized in that: in the end of screw rod (8) draw-in groove (9) is set.
3, screw rod according to claim 1 is characterized in that: the end at adjusting nut (2) is provided with the enlarged portion that expands outwardly, and forms cavity in enlarged portion, and end socket (1) is set in the end of cavity.
4, screw rod according to claim 1 is characterized in that: two sections conventional thread sections (3), (7) are arranged on screw rod (8), and gaining twist section (4) is positioned between two sections conventional thread sections (3), (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259684 CN2637807Y (en) | 2003-07-18 | 2003-07-18 | Variable pitch screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259684 CN2637807Y (en) | 2003-07-18 | 2003-07-18 | Variable pitch screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637807Y true CN2637807Y (en) | 2004-09-01 |
Family
ID=34296144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03259684 Expired - Fee Related CN2637807Y (en) | 2003-07-18 | 2003-07-18 | Variable pitch screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637807Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103462666A (en) * | 2013-09-29 | 2013-12-25 | 无锡市神康医疗器械设备有限公司 | Variable pitch screw for disposable guide type anorectal hemorrhoid anastomat |
| TWI551748B (en) * | 2014-07-21 | 2016-10-01 | 國立虎尾科技大學 | Clothes hanging system and method thereof |
| CN106970462A (en) * | 2017-05-04 | 2017-07-21 | 成都鸿安泰达科技发展有限公司 | A kind of endoscope-use expansion link |
| CN107120343A (en) * | 2017-05-04 | 2017-09-01 | 成都鸿安泰达科技发展有限公司 | A kind of industrial expansion link |
| CN110116437A (en) * | 2019-02-20 | 2019-08-13 | 淄博健利轻工制品有限公司 | A kind of the die cutting plate loading board device and its application method of die-cutting machine |
-
2003
- 2003-07-18 CN CN 03259684 patent/CN2637807Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103462666A (en) * | 2013-09-29 | 2013-12-25 | 无锡市神康医疗器械设备有限公司 | Variable pitch screw for disposable guide type anorectal hemorrhoid anastomat |
| TWI551748B (en) * | 2014-07-21 | 2016-10-01 | 國立虎尾科技大學 | Clothes hanging system and method thereof |
| CN106970462A (en) * | 2017-05-04 | 2017-07-21 | 成都鸿安泰达科技发展有限公司 | A kind of endoscope-use expansion link |
| CN107120343A (en) * | 2017-05-04 | 2017-09-01 | 成都鸿安泰达科技发展有限公司 | A kind of industrial expansion link |
| CN110116437A (en) * | 2019-02-20 | 2019-08-13 | 淄博健利轻工制品有限公司 | A kind of the die cutting plate loading board device and its application method of die-cutting machine |
| CN112811203A (en) * | 2019-02-20 | 2021-05-18 | 淄博健利轻工制品有限公司 | Die cutting plate taking and placing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |