CN2806700Y - Stepless retractable single-pivot supporting bar - Google Patents
Stepless retractable single-pivot supporting bar Download PDFInfo
- Publication number
- CN2806700Y CN2806700Y CN 200520009657 CN200520009657U CN2806700Y CN 2806700 Y CN2806700 Y CN 2806700Y CN 200520009657 CN200520009657 CN 200520009657 CN 200520009657 U CN200520009657 U CN 200520009657U CN 2806700 Y CN2806700 Y CN 2806700Y
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- CN
- China
- Prior art keywords
- support bar
- ratchet
- utility
- model
- ratchet pawl
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a stepless retractable supporting rod with single supporting point, which comprises a supporting pipe 13 and a supporting rod 14, wherein one end of the supporting rod 14 can move in the supporting pipe and an upper connecting piece and a lower connecting piece are respectively fixed on one end of the supporting pipe and the exposed end of the supporting rod. The utility model is characterized in that at least a section of unidirectional tooth surface groove is arranged on the supporting rod, and double-faced switching guide grooves are arranged on both ends of the tooth surface groove; a ratchet pawl chamber 15 is arranged on the supporting pipe; a ratchet pawl 16 and a bidirectional torsion spring 18 of the ratchet pawl 16 are installed in the ratchet pawl chamber through a pin 17 in a coaxial way. The ratchet pawl 16 of the utility model can realize stepless extension and shrinkage and can be tightly locked on a fixed point through the torsion spring, and locking of the single supporting point can be realized; the ratchet pawl 16 of the utility model can work under states of stillness, vibration and movement. The utility model has the advantages of pure mechanical work state, long time effect, disposable use, maintenance-free performance, stable performance and reliability.
Description
Technical field
The utility model relates to the support member of door or window unlatching, specifically is a kind of stepless scalable single fulcrum support bar.
Background technology
Upper-turn-type door, plate support the vapour-pressure type springs supports of adopting more at present, this vapour-pressure type spring supports deficiency in use: the unstability in the vibration working environment, support uncertainty in the mobile working makes air bag leak to wear out for a long time and generates the destruction that forever can not safeguard.
Technology contents
The purpose of this utility model provides a kind of ratchet that utilizes and realizes stepless retractable and fixed point locking by torsion spring, mobile working state, vibration duty, can steady operation when using for a long time stepless scalable single fulcrum support bar.
Above-mentioned purpose of the present utility model is to listen such technical scheme to realize, it is a kind of stepless scalable single fulcrum support bar, comprise the support bar that a stay pipe and an end can move in stay pipe, wherein, the end that an end of stay pipe and support bar expose is fixed with connector up and down respectively; It is characterized in that: have at least one section unidirectional flank of tooth groove on the described support bar, have two-sided switching guide groove at the two ends of flank of tooth groove; Have the ratchet chamber on described stay pipe, coaxial to be installed in ratchet indoor by pin for ratchet and two-way torsion spring thereof.
The utility model can solve durability, the stability of upper-turn-type structure door, plate support owing to described structure.By the stretching of type (circle) material flank of tooth pole and cylindrical arm, realize the two-sided switching of ratchet by guide groove, reach the lock point back ratchet and the flank of tooth and enter duty, realize single fulcrum locking.Can under static, vibration, motion state, work.The utility model is pure machine work state, has long timeliness, disposable, non-maintaining performance, and is reliable and stable.
Description of drawings
The non-limiting embodiment that the utility model can listen accompanying drawing to provide further specifies.
The utility model has following accompanying drawing:
Accompanying drawing 1 is a structure sectional view of the present utility model;
Accompanying drawing 2 is a structural representation of the present utility model;
Accompanying drawing 3 is the structural front view of ratchet bidirectional spring;
Accompanying drawing 4 is the structure vertical view of ratchet bidirectional spring;
Accompanying drawing 5 is the structural front view of ratchet;
Accompanying drawing 6 partly cuts open lateral view for ratchet.
In the accompanying drawing: 1-hex nut, 2-spring washer, 3-small washer, 4-liner, the little hexagon-headed bolt of 5-, the last ear of 6-angle, 7-minor axis, 8-hexagon socket cap head screw, 9-spring shim, 10-back-up ring, 11-spring, 12-check ring, 13-stay pipe, 14-support bar, 15-ratchet chamber, 16-ratchet, 17-pin, the two-way torsion spring of 18-ratchet.19-limited block, 20-inferior horn ear, 21-spring washer, 22-hexagon thin nut (chamfering).
The specific embodiment
Referring to accompanying drawing 1,2: the stepless scalable single fulcrum support bar among the figure comprises the support bar 14 that a stay pipe 13 and an end can move in stay pipe, the end that an end of stay pipe and support bar expose is fixed with upper and lower connector respectively; In an embodiment, have 2 sections unidirectional flank of tooth grooves on the described support bar, have two-sided switching guide groove at the two ends of flank of tooth groove; Have ratchet chamber 15 on described stay pipe, coaxial to be installed in ratchet indoor by pin 17 for ratchet 16 and two-way torsion spring 18 thereof.
In the above-described embodiments, an end that is positioned at stay pipe at support bar 14 is equipped with spring 11, and this spring is installed between back-up ring 12 and the back-up ring 9, and its guide ring 9 is fixing with support bar 14 by screw 8.
The fixing respectively upper and lower connector of the end that one end of stay pipe and support bar expose is a upper and lower angle ear 6,20, is used for respectively being connected with door or plate and the strong point.
Referring to accompanying drawing 3～6, ratchet 16 has pin-and-hole, and its top has groove, and the top cross bar in the middle of the two-way torsion spring 18 is positioned at this groove, and pin 17 passes the pin-and-hole of two-way torsion spring and ratchet simultaneously, and its two ends are fixed on 15 housings of ratchet chamber.
Operating principle of the present utility model: utilize ratchet 16 to realize stepless retractable and fixed point locking by torsion spring, solution is in mobile working state, vibration duty, unstable operation problem when using for a long time, promptly by pulling workpiece 13,14, ratchet reaches the lock point flank of tooth along the flank of tooth, under the door load action, ratchet 16 is combined closely under two-way torsion spring 18 effects with monodentate face groove and is entered duty.Continue pulling 13,14 when closing, make ratchet 16 enter two-sided switching guide groove, under torsion spring 18 effects, ratchet 16 guiding.13,14 workpiece counter motions, realization door, plate are closed.
Claims (4)
1, a kind of stepless scalable single fulcrum support bar comprises the support bar (14) that a stay pipe (13) and an end can move in stay pipe, and wherein, the end that an end of stay pipe and support bar expose is fixed with connector up and down respectively; It is characterized in that: have at least one section unidirectional flank of tooth groove on the described support bar, have two-sided switching guide groove at the two ends of flank of tooth groove; Have ratchet chamber (15) on described stay pipe, coaxial to be installed in ratchet indoor by pin (17) for ratchet (16) and two-way torsion spring (18) thereof.
2, stepless scalable single fulcrum support bar according to claim 1, it is characterized in that: an end that is positioned at stay pipe at support bar (14) is equipped with spring (11), this spring is installed between back-up ring (12) and the back-up ring (9), and its guide ring (9) is fixing by screw (8) and support bar (14).
3, stepless scalable single fulcrum support bar according to claim 1 is characterized in that: the fixing respectively upper and lower connector of the end that an end of stay pipe (13) and support bar (14) expose is upper and lower angle ear (6,20).
4, stepless scalable single fulcrum support bar according to claim 1, it is characterized in that: ratchet (16) has pin-and-hole, its top has groove, top cross bar in the middle of the two-way torsion spring (18) is positioned at this groove, pin (17) passes the pin-and-hole of two-way torsion spring and ratchet simultaneously, and its two ends are fixed on the housing of ratchet chamber (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009657 CN2806700Y (en) | 2005-07-22 | 2005-07-22 | Stepless retractable single-pivot supporting bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009657 CN2806700Y (en) | 2005-07-22 | 2005-07-22 | Stepless retractable single-pivot supporting bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2806700Y true CN2806700Y (en) | 2006-08-16 |
Family
ID=36921000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009657 Expired - Fee Related CN2806700Y (en) | 2005-07-22 | 2005-07-22 | Stepless retractable single-pivot supporting bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2806700Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922472A (en) * | 2021-03-16 | 2021-06-08 | 上海蜜罐信息科技有限公司 | Multi-functional express delivery cabinet |
-
2005
- 2005-07-22 CN CN 200520009657 patent/CN2806700Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922472A (en) * | 2021-03-16 | 2021-06-08 | 上海蜜罐信息科技有限公司 | Multi-functional express delivery cabinet |
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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: 20060816 Termination date: 20100722 |