CN205211360U - Precious extension spring of easy -to -draw - Google Patents
Precious extension spring of easy -to -draw Download PDFInfo
- Publication number
- CN205211360U CN205211360U CN201520719054.3U CN201520719054U CN205211360U CN 205211360 U CN205211360 U CN 205211360U CN 201520719054 U CN201520719054 U CN 201520719054U CN 205211360 U CN205211360 U CN 205211360U
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- China
- Prior art keywords
- spring
- axostylus axostyle
- fixed
- extension spring
- balance plate
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Abstract
The utility model provides a precious extension spring of easy -to -draw, include a head that rolls left, be located roll left the pinhole, fixed axle, setting of tin head top side at flat spindle nose, axostylus axostyle, balance plate, the spring on fixed axle top, the axostylus axostyle top is fixed and is kept away from on the fixed axle the one end of flat spindle nose, fixed axle sleeve is established roll left in the head, it is equipped with the screw thread section to roll left tin head bottom, spring one end is fixed in the screw thread section, the axostylus axostyle bottom is equipped with the prong, the screens of the spring other end in in the prong be equipped with the recess along the circumferencial direction on the outer wall of axostylus axostyle bottom, the balance plate activity is fixed in the recess. The utility model discloses structural stability is good, and the spring both ends are fixed with a head and the axostylus axostyle fastening of rolling left respectively, and spring force misses when having avoided precious drawing of easy -to -draw or rolling drawing paper.
Description
Technical field
The utility model relates to demonstrating apparatus, is specifically related to a kind of post stand extension spring.
Background technology
Due to detachable, easy for installation, current post stand as meeting, an important demonstrating apparatus puting on display, to explain and publicise etc. occasion is more and more subject to liking of people, post stand comprises cylinder, spring, axostylus axostyle, end casing, a twisting resistance is applied to spring, during spring release twisting resistance, cylinder tightens up painting canvas, tightens up spring to reach the object of showing painting canvas by pull-out painting canvas.In use normal produced problem is that both ends of the spring is fixing unstable, and at stretched painting canvas or when tightening up painting canvas, twisting resistance lost efficacy.
Utility model content
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: a kind of post stand extension spring, comprise an end socket that rolls left, be positioned at described in roll left a pin-and-hole for end socket top-side, stationary shaft, be arranged on flat spindle nose, axostylus axostyle, balance plate, the spring on stationary shaft top, described axostylus axostyle top is fixed on the one end away from described flat spindle nose on stationary shaft, roll left described in described fixed hub is located in an end socket, it is characterized in that: described in roll left bottom an end socket and be provided with thread segment, described spring one end is fixed on described thread segment; Be provided with prong bottom described axostylus axostyle, the described spring other end is positioned in described prong, and described axostylus axostyle bottom outer wall is along the circumferential direction provided with groove, and described balance plate is movably fixed in described groove.
Further, described prong wall is provided with the breach of linearly type arrangement.
Further, described breach is semicircle or serrate.
Further, the breadth extreme of described breach is greater than the diameter of described spring.
Further, ringwise, the degree of depth of described groove is less than the radius of described axostylus axostyle to described groove.
Further, be provided with through hole in the middle of described balance plate, described balance plate is set in described groove.
Further, the diameter of described through hole is more than or equal to the interior diameter of described groove.
The advantage that the utility model has and good effect are:
1, the utility model structural stability is good, both ends of the spring is fastened and fixed with roll left an end socket and axostylus axostyle respectively, axostylus axostyle end is provided with prong, and prong wall is provided with the breach of increasing friction force, ensure that the tightness that spring is connected with axostylus axostyle, avoid post stand stretch or rolling drawing paper time spring force miss;
2, the breadth extreme of described breach is greater than the diameter of described pitch of the laps spring, ensure that spring can be positioned in breach, and when spring is increased by rotation elasticity, the spring be fixed in breach is not easily shifted.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structure for amplifying schematic diagram at prong place of the present utility model.
In figure: 1. stationary shaft, 2. flat spindle nose, 3. roll left an end socket,
4. axostylus axostyle, 5. spring, 6. prong 7. breach
8. groove, 9. balance plate, 10. pin-and-hole.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
As shown in Figure 1 and Figure 2, a kind of post stand extension spring, comprise the end socket 3 that rolls left, be positioned at described in roll left pin-and-hole 10, stationary shaft 1, the flat spindle nose 2 being arranged on stationary shaft 1 top, axostylus axostyle 4, balance plate 9, the spring 5 of an end socket 3 top-side, described axostylus axostyle 4 top is fixed on the one end away from described flat spindle nose 2 on stationary shaft 1, roll left described in described stationary shaft 1 is set in an end socket 3, it is characterized in that: described in roll left bottom an end socket 3 and be provided with thread segment, described spring 5 one end is fixed on described thread segment; Be provided with prong 6 bottom described axostylus axostyle, described spring 5 other end is positioned in described prong 6, and described axostylus axostyle 4 bottom outer wall is along the circumferential direction provided with groove 8, and described balance plate 9 is movably fixed in described groove 8.
Described flat spindle nose 2 can be used for applying twisting resistance as handle to described spring 5, and flat spindle nose 2 is fixed on end casing through the connecting hole on end casing simultaneously, thus extension spring is fixed on the body of post stand.
Described pin-and-hole 10 act as fixation, axostylus axostyle 4 is rotated, when spring 5 produces certain torsion, pin is inserted in described pin-and-hole 10 with the elastic force of fixing spring 5.
Further, described prong 6 wall is provided with the breach 7 of linearly type arrangement, mainly increases the friction force between spring 5 and axostylus axostyle 4, ensure the fastness that spring 5 end is connected with axostylus axostyle 4.
Further, described breach 7 is semicircle or serrate.
Further, the breadth extreme of described breach 7 is greater than the diameter of described spring 5, ensure that spring 5 can be positioned in breach 7, and when spring 5 is increased by rotation elasticity, the spring 5 be fixed in breach 7 is not easily shifted.
Further, ringwise, the degree of depth of described groove 8 is less than the radius of described axostylus axostyle 4 to described groove 8.
Further, be provided with through hole in the middle of described balance plate 9, described balance plate 9 is set in described groove 8.Balance plate 9 is fixed on the inwall of post stand base, plays fixation, also play a supporting role to whole extension spring to the torsion of spring 5.
Further, the diameter of described through hole is more than or equal to the interior diameter of described groove 8, ensure that when twisting described flat spindle nose 2, and axostylus axostyle 4 can rotate easily in balance plate 9, avoids in use procedure to reverse and is obstructed and again dismantles finishing.
During use, twist flat spindle nose 2, give spring 5 one torsion in advance, the large I of torsion ensures that the number of turns of cylinder is greater than the length of painting canvas, and general painting canvas is involved in base the power needing 2 kilograms completely, and spring 5 of the present utility model can produce the torsion of 8 kilograms; Discharging torsion by spring 5 can retract in cylinder base by painting canvas, stretching painting canvas tightens up spring 5, reaches the object of showing picture.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (7)
1. a post stand extension spring, comprise an end socket that rolls left, be positioned at described in roll left a pin-and-hole for end socket top-side, stationary shaft, be arranged on flat spindle nose, axostylus axostyle, balance plate, the spring on stationary shaft top, described axostylus axostyle top is fixed on the one end away from described flat spindle nose on stationary shaft, roll left described in described fixed hub is located in an end socket, it is characterized in that: described in roll left bottom an end socket and be provided with thread segment, described spring one end is fixed on described thread segment; Be provided with prong bottom described axostylus axostyle, the described spring other end is positioned in described prong, and described axostylus axostyle bottom outer wall is along the circumferential direction provided with groove, and described balance plate is movably fixed in described groove.
2. a kind of post stand extension spring according to claim 1, is characterized in that: the breach being provided with linearly type arrangement on described prong wall.
3. a kind of post stand extension spring according to claim 2, is characterized in that: described breach is semicircle or serrate.
4. a kind of post stand extension spring according to claim 3, is characterized in that: the breadth extreme of described breach is greater than the diameter of described spring.
5. a kind of post stand extension spring according to claim 1, is characterized in that: ringwise, the degree of depth of described groove is less than the radius of described axostylus axostyle to described groove.
6. a kind of post stand extension spring according to claim 5, is characterized in that: be provided with through hole in the middle of described balance plate, described balance plate is set in described groove.
7. a kind of post stand extension spring according to claim 6, is characterized in that: the diameter of described through hole is more than or equal to the interior diameter of described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719054.3U CN205211360U (en) | 2015-09-16 | 2015-09-16 | Precious extension spring of easy -to -draw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520719054.3U CN205211360U (en) | 2015-09-16 | 2015-09-16 | Precious extension spring of easy -to -draw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205211360U true CN205211360U (en) | 2016-05-04 |
Family
ID=55849062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520719054.3U Active CN205211360U (en) | 2015-09-16 | 2015-09-16 | Precious extension spring of easy -to -draw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205211360U (en) |
-
2015
- 2015-09-16 CN CN201520719054.3U patent/CN205211360U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |