CN204828420U - Draw spring - Google Patents
Draw spring Download PDFInfo
- Publication number
- CN204828420U CN204828420U CN201520575711.1U CN201520575711U CN204828420U CN 204828420 U CN204828420 U CN 204828420U CN 201520575711 U CN201520575711 U CN 201520575711U CN 204828420 U CN204828420 U CN 204828420U
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- CN
- China
- Prior art keywords
- spring
- spring body
- armed
- long
- coupler
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- 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 draw spring, its technical scheme main points are: including the spring body and the coupler body of setting at spring body both ends, the at least one end of the spring body is equipped with and is used for connecting the long arm of coupler body, the both ends of the spring body are located to extend to form to the central axis respectively and are connected the galianconism, connect the the central axis that short armed tip is located the spring body, coupler body or long arm and it connects to connect the galianconism, the long arm coincides with the the central axis of the spring body. The utility model provides a current yielding problem of draw spring.
Description
Technical field
The utility model relates to a kind of spring, and in particular, it relates to a kind of extension spring.
Background technique
Spring is a kind of mechanical parts utilizing elasticity to carry out work, generally makes with spring steel, in order to control parts motion, relax impact or vibrations, storage or saving energy, measuring force size etc., be widely used in machine, instrument.Existing extension spring, comprise spring body and be located at first of spring body two ends and link up with and the second hook, described spring body forms hollow cylinder, when connecting by the curling superposition of metal wire rod, the hook at its two ends must be relied on, be connected with object by the hook at two ends.But general spring during fabrication, in order to save axial space, and ensure that spring is when zero load, each circle compresses mutually, be everlasting in the process of coiling, make spring thread produce torsion around the axis of itself, the spring made like this has certain impacting force between respectively enclosing, and also creates certain pretightening force in spring thread simultaneously, after additional pulling force is greater than initial tension, each circle just starts to be separated, therefore compared to the extension spring without pretightening force, this extension spring saves axial working space.Can save certain working space although it is so, but this extension spring is only suitable for being arranged in the less structure in space.When mounting distance is larger, this spring then cannot meet pulling tension requirements.Such as, in the shrinking structure application of the chamber door of microwave oven, baking box, this extension spring, because stroke is too short, cannot be suitable for, and chamber door will be caused too to tighten when keying, causes chamber door with casing, direct shock can occur, makes chamber door fragile.
Application number be 200920300794.8 Chinese patent disclose a kind of long-arm tension spring, wherein, the two ends of spring body are respectively equipped with the first coupler body and the second coupler body, and the first coupler body is directly connected with spring body, is also provided with straight-arm and oblique arm between the second coupler body and spring body.Application number be 200520116208.6 Chinese patent disclose a kind of extension spring, it comprises spring body and tack.
Extension spring disclosed in above two sections of patent documentations is because have long-armed, so all can be applicable to the larger space of mounting distance.But the long-armed of both extension spring is all parallel with the outer radial line of spring body, so time coupler body is that other objects connect, the axial direction of the power that two ends produce and spring body produces deviation, and then make spring body be subject to warping force, spring body is yielding when being often subject to warping force, finally cause elastic failure or required elastic force cannot be provided, and then the connection be connected between thing can be made to become loosening, such as, the connection between the chamber door of microwave oven, baking box and casing can be made to become loosening.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of extension spring can avoiding spring body deformability.
For achieving the above object, the utility model provides following technological scheme: a kind of extension spring, comprise spring body and the coupler body being arranged on spring body two ends, at least one end of described spring body is provided with for connecting the long-armed of described coupler body, the two ends of described spring body extend to form connection galianconism respectively to central axis place, the end of described connection galianconism is positioned on the central axis of spring body, and described coupler body or the long-armed and described galianconism that is connected connect, the described long-armed central axes with spring body.
Preferably, the plane at the coupler body place at described spring body two ends is vertical setting.
Preferably, described coupler body comprises arc section and is connected to the straightway of described arc section, and described straightway is arranged to spring body lopsidedness.
Preferably, described long-armed length equals the length of described spring body.
Preferably, in closely evenly arranging between the spring ring of described spring body.
The utility model has following advantage: at least one end of the spring body of the utility model extension spring is provided with for connecting the long-armed of coupler body, the two ends of spring body extend to form connection galianconism respectively to central axis place, the end connecting galianconism is positioned on the central axis of spring body, coupler body or long-armed be connected galianconism and connect, the long-armed central axes with spring body.Long-armed owing to being provided with this, make this extension spring can be applicable to the larger space of mounting distance, time on the shrinking structure of the chamber door for microwave oven, baking box, make the keying of chamber door have mildness, can not shock be produced.And, because the long-armed central axis with spring body overlaps, so time coupler body is that other objects connect, the power that two ends produce is consistent with the axial direction of spring body, and then make spring body to be subject to warping force, and then avoid extension spring to produce distortion, and then the connection be connected between thing is avoided to become loosening.
Accompanying drawing explanation
Fig. 1 is the axonometric drawing one of the utility model extension spring;
Fig. 2 is the axonometric drawing two of the utility model extension spring;
Fig. 3 is the front view one of the utility model extension spring;
Fig. 4 is the front view two of the utility model extension spring.
In figure: 1, spring body; 2, galianconism is connected; 3, long-armed; 4, coupler body; 41, arc section; 42, straightway.
Embodiment
With reference to shown in accompanying drawing, the utility model extension spring is further illustrated.
Embodiment: a kind of extension spring, comprise spring body 1 and the coupler body 4 being arranged on spring body 1 two ends, at least one end of spring body 1 be provided with for connect coupler body 4 long-armed 3, only for one long-armed 3 in the present embodiment, the two ends of spring body 1 extend to form respectively to central axis place and connect galianconism 2, connect the end of galianconism 2 to be positioned on the central axis of spring body 1 (radius that the length namely connecting galianconism 2 equals spring body 1), coupler body 4 or long-armed 3 be connected galianconism 2 and connect, long-armed 3 and the central axes of spring body 1.Due to be provided with this long-armed 3, make this extension spring can be applicable to the larger space of mounting distance, time on the shrinking structure of the chamber door for microwave oven, baking box, make the keying of chamber door have mildness, can not shock be produced.When this extension spring is on the chamber door of microwave oven, baking box, owing to being in the environment of high temperature, so extension spring can be made to meet high temperature deformation, in the present embodiment, modified organosilicon fire-resistant thermal-protective coating is had at the outer surface of extension spring, make this extension spring have effect of heat insulation, avoid its distortion of temperatures involved.
And, overlap with the central axis of spring body 1 due to long-armed 3, so time coupler body 4 is that other objects connect, the power that two ends produce is consistent with the axial direction of spring body 1, and then make spring body 1 to be subject to warping force, and then avoid extension spring to produce distortion, and then the connection be connected between thing is avoided to become loosening.
Further, the plane at coupler body 4 place at spring body 1 two ends is vertical setting, and so the power suffered by coupler body 4 at two ends will in being crisscross arranged, compared to two coupler bodies 4 originally be arranged in parallel, the coupler body 4 of this structure be connected in thing links up with, more not easily break off relations.
Wherein, coupler body 4 comprises arc section 41 and is connected to the straightway 42 of arc section 41, and straightway 42 is arranged to spring body 1 lopsidedness, is greater than 180 degree with the arc section 41 being connected the coupler body 4 that galianconism 2 is directly connected, and straightway 42 slopes inwardly, be not easy like this to depart from by hook thing; And be less than 180 degree with the arc section 41 of long-armed 3 coupler bodies be connected 4, and straightway 42 is outward-dipping, can conveniently with by hook thing be connected like this.When connecting this extension spring, first making to link up with being connected coupler body 4 that galianconism 2 connects and being connected thing, and then being connected being connected to long-armed 3 coupler bodies be connected 4 on thing.
In the present embodiment, the length of long-armed 3 equals the length of spring body 1, and long-armed 3 of this length has good connective stability, and its moment is less, and not yielding, fracture.In addition, in closely evenly arranging between the spring ring of spring body 1, make the elasticity between spring ring better, not yielding.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. an extension spring, comprise spring body and the coupler body being arranged on spring body two ends, it is characterized in that: at least one end of described spring body is provided with for connecting the long-armed of described coupler body, the two ends of described spring body extend to form connection galianconism respectively to central axis place, the end of described connection galianconism is positioned on the central axis of spring body, described coupler body or the long-armed and described galianconism that is connected connect, the described long-armed central axes with spring body.
2. extension spring according to claim 1, is characterized in that: the plane at the coupler body place at described spring body two ends is vertical setting.
3. extension spring according to claim 1, is characterized in that: described coupler body comprises arc section and is connected to the straightway of described arc section, and described straightway is arranged to spring body lopsidedness.
4. extension spring according to claim 1, is characterized in that: described long-armed length equals the length of described spring body.
5. extension spring according to claim 1, is characterized in that: in closely evenly arranging between the spring ring of described spring body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575711.1U CN204828420U (en) | 2015-08-04 | 2015-08-04 | Draw spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520575711.1U CN204828420U (en) | 2015-08-04 | 2015-08-04 | Draw spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828420U true CN204828420U (en) | 2015-12-02 |
Family
ID=54686025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520575711.1U Expired - Fee Related CN204828420U (en) | 2015-08-04 | 2015-08-04 | Draw spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941453A (en) * | 2018-01-02 | 2018-04-20 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of free spin test model bridle catcher of wind-tunnel |
| CN110856637A (en) * | 2018-08-24 | 2020-03-03 | 青岛海尔洗碗机有限公司 | Spring and dish washing machine |
-
2015
- 2015-08-04 CN CN201520575711.1U patent/CN204828420U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941453A (en) * | 2018-01-02 | 2018-04-20 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of free spin test model bridle catcher of wind-tunnel |
| CN107941453B (en) * | 2018-01-02 | 2024-04-05 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel free tail-spin test model recovery rod |
| CN110856637A (en) * | 2018-08-24 | 2020-03-03 | 青岛海尔洗碗机有限公司 | Spring and dish washing machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20200804 |