CN201475224U - Constant force spring - Google Patents
Constant force spring Download PDFInfo
- Publication number
- CN201475224U CN201475224U CN 200920231283 CN200920231283U CN201475224U CN 201475224 U CN201475224 U CN 201475224U CN 200920231283 CN200920231283 CN 200920231283 CN 200920231283 U CN200920231283 U CN 200920231283U CN 201475224 U CN201475224 U CN 201475224U
- Authority
- CN
- China
- Prior art keywords
- tinsel
- force spring
- plastic cement
- constant force
- cement roller
- 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 discloses a constant force spring comprising a metal plate curled into a reel-shaped structure, which is characterized in that the constant force spring further comprises a plastic roller and a center shaft disposed on the plastic roller, and the curled metal plate is arranged on the plastic roller. The constant force spring adopting the plastic roller is convenient for curling the metal plate onto the plastic roller, which is useful for shaping, simultaneously, the constant force spring is convenient for linearly pulling out the metal plate, thereby reducing the required space, avoiding deformation of the metal plate, and prolonging the service life, and the constant force spring is suitable for various balance devices.
Description
Technical field
The utility model relates to a kind of spring, what be specifically related to is a kind of fixed force spring that is applied on the Equilibrator.
Background technique
Fixed force spring is present a kind of special extension spring, is mainly used in all kinds of Equilibrators; All be directly constant force spring to be drawn back or pushes open during use, moving linearly makes fixed force spring thrust output or pulling force.When tinsel extends (reversing), internal stress opposing load force, this and common extension spring are just the same, but coefficient approaches constant (zero).Constant force formula spring is applicable to the occasion that elongation is big, load does not increase.
Existing fixed force spring is made up of spiral tinsel, the inside bend of tinsel, and every like this circle tinsel is all tightly on a circle tinsel of its inside.But the fixed force spring of this structure, the tinsel after tinsel curls form a curling tube, and its center is hollow, when working stroke was longer, the variation of thrust or pulling force was just bigger, is difficult to reach the requirement of constant force, the lines of pulling out are easy to generate distortion, influence the working life of spring.
The model utility content
At the deficiency that exists on the prior art, the utility model purpose is to be to provide a kind of elastic force constant, on-deformable fixed force spring, the working life of having improved spring.
To achieve these goals, the utility model is to realize by the following technical solutions:
Fixed force spring, it comprises the tinsel that is curled into reel shape structure, it is characterized in that, it also comprises a plastic cement roller and the central shaft that is arranged on the plastic cement roller, described tinsel curls on the plastic cement roller, and the tinsel of being convenient to pull out is linearly pulled out, simultaneously, avoid the distortion of tinsel, influenced the working life of spring.
According to above-mentioned fixed force spring, wherein, described central shaft is a metal shaft, and is fixed on the center of plastic cement roller, when tinsel is pulled out, drives plastic cement roller and central shaft and rotates together.
According to above-mentioned fixed force spring, wherein, described tinsel is stainless steel steel disc, spring steel plate, carbon steel coupon, phosphoretic steel sheet.
According to above-mentioned fixed force spring, wherein, also be provided with the spline sheet between described central shaft and the plastic cement roller, described central shaft is connected with the plastic cement roller by the spline sheet, and spline sheet compressive deformation is pushed down central shaft, has effectively prevented the transfer of central shaft.
The utility model has been convenient to tinsel and has been curled on the plastic cement roller by adopting the plastic cement roller, plays good styling, simultaneously, is convenient to tinsel and linearly pulls out, and has avoided the distortion of tinsel, has improved working life, is applicable in all kinds of Equilibrators.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an erection drawing of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
Referring to Fig. 1 and Fig. 2, the utility model fixed force spring, it comprises tinsel 1, the plastic cement roller 2 that is curled into reel shape structure and is installed in central shaft 3 on the plastic cement roller 2.The plastic cement roller 2 that plastic cement is made is installed at the center of the reel shape structure that is curled at tinsel 1, this tinsel 1 inside bend, be crimped onto on the plastic cement roller 2, every like this circle tinsel 1 all encloses on the tinsel around one of its inside tightly, and innermost tinsel 1 is on plastic cement roller 2; When tinsel 1 was pulled out, plastic cement roller 2 had played the effect of supporting and finalizing the design, and the tinsel of being convenient to pull out 1 is lines pulls out, and the tinsel of having avoided pulling out 1 produces skew, and causes tinsel 1 distortion, influences the working life of fixed force spring.
In the utility model, tinsel 1 can be stainless steel steel disc, spring steel plate, carbon steel coupon and phosphoretic steel sheet, selects the tinsel of different elasticity and rigidity according to different needs.The other end at tinsel 1 is provided with drag hook 11, is connected with other device by drag hook 11; In Equilibrator, connect the device that needs constant force by flexible tinsel 1, to reach the requirement of constant force.
What deserves to be mentioned is, at the center of plastic cement roller 2 mounting center axle 3, this central shaft 3 is a metal shaft, made step 31 at the two ends of central shaft 3, make its two ends structure that is square, by central shaft 3 with and the square structure at two ends fixed force spring is installed in the Equilibrator, be convenient to people's use.
It should be noted that also to make on plastic cement roller 2 to be useful on the spline hole 31 that spline sheet 4 is installed, this spline sheet 4 is installed between central shaft 3 and the plastic cement roller 2 by spline hole 31.When tinsel 1 was pulled out, tinsel 1 drove 2 rotations of plastic cement roller, and simultaneously, spline sheet 4 compressive deformations are pushed down central shaft 3, have prevented the transfer of central shaft 3, are convenient to tinsel 1 and linearly pull out, and have avoided the distortion of tinsel 1.
The utility model is installed in the Equilibrator by central shaft 3 in use, and tinsel 1 is connected on other device in the Equilibrator by drag hook 11; When tinsel 1 is pulled out, be that the center drives 2 rotations of plastic cement roller with plastic cement roller 2, tinsel 1 is linearly pulled out, avoided the distortion of tinsel 1, increase the working life of fixed force spring.Simultaneously, because the elastic force that tinsel 1 is pulled out makes spline sheet 4 compressive deformations, thereby pushes down central shaft 3, effectively prevented the transfer of central shaft 3, to reach the requirement of fixed force spring constant force.
Based on above-mentioned, the utility model has been convenient to tinsel 1 and has been crimped onto on the plastic cement roller 2 by adopting plastic cement roller 2, play good styling, simultaneously, be convenient to tinsel 1 and linearly pull out, avoided the distortion of tinsel 1, improved working life, it is applicable in all kinds of Equilibrators.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. fixed force spring, it comprises the tinsel that is curled into reel shape structure, it is characterized in that, it also comprises a plastic cement roller and is arranged on central shaft on the plastic cement roller that described tinsel curls on the plastic cement roller.
2. fixed force spring according to claim 1 is characterized in that described central shaft is a metal shaft, and is fixed on the center of plastic cement roller.
3. fixed force spring according to claim 1 is characterized in that, described tinsel is stainless steel steel disc, spring steel plate, carbon steel coupon or phosphoretic steel sheet.
4. fixed force spring according to claim 1 is characterized in that, also is provided with the spline sheet between described central shaft and the plastic cement roller, and described central shaft is connected with the plastic cement roller by the spline sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920231283 CN201475224U (en) | 2009-08-31 | 2009-08-31 | Constant force spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920231283 CN201475224U (en) | 2009-08-31 | 2009-08-31 | Constant force spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475224U true CN201475224U (en) | 2010-05-19 |
Family
ID=42411471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920231283 Expired - Fee Related CN201475224U (en) | 2009-08-31 | 2009-08-31 | Constant force spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10224668B2 (en) | 2017-10-20 | 2019-03-05 | Isodyne, Inc. | Assembly for terminating an EMF shielded cable harness at an electrical component port |
| TWI692685B (en) * | 2018-12-03 | 2020-05-01 | 英業達股份有限公司 | server |
-
2009
- 2009-08-31 CN CN 200920231283 patent/CN201475224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10224668B2 (en) | 2017-10-20 | 2019-03-05 | Isodyne, Inc. | Assembly for terminating an EMF shielded cable harness at an electrical component port |
| TWI692685B (en) * | 2018-12-03 | 2020-05-01 | 英業達股份有限公司 | server |
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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: 20100519 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |