CN207111798U - Extension spring - Google Patents
Extension spring Download PDFInfo
- Publication number
- CN207111798U CN207111798U CN201720829618.8U CN201720829618U CN207111798U CN 207111798 U CN207111798 U CN 207111798U CN 201720829618 U CN201720829618 U CN 201720829618U CN 207111798 U CN207111798 U CN 207111798U
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- China
- Prior art keywords
- spring body
- spring
- sleeve
- drag hook
- linking arm
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Abstract
The utility model discloses a kind of extension spring, including spring body, telescoping mechanism, linking arm and drag hook, one end connecting spring body of linking arm, and the other end of linking arm connects drag hook, and drag hook rotates relative to linking arm；Spring body includes the first spring body and second spring body, telescoping mechanism is connected between the first spring body and second spring body, telescoping mechanism includes hollow sleeve and is socketed in the loop bar of sleeve inner, sleeve includes closed end and openend, the closed end of sleeve is connected with the spring wire extended of the first spring body, loop bar stretched out from the openend of sleeve and with second spring body by integral forming.Extension spring of the present utility model is divided into the first spring body and second spring body, and spring body plays cushioning effect in stretching, and more preferably, the setting of telescoping mechanism can easily change the use length of extension spring to elasticity, and adaptability is stronger.Spring body is divided into cylindrical part and conical section, enhances the overall load of extension spring.
Description
Technical field
The utility model belongs to spring technical field, and in particular to a kind of extension spring.
Background technology
The purposes of spring is very extensive, almost the indispensable element of common mechanical, when it is acted on by external force, that is, produces
Raw elastic deformation, thus store strain energy and disengage at random.Extension spring in spring species is subject to axial tension
Helical spring, typically all it is made up of circular section material, during extension spring zero load, each circle is coiled into the spiral coil being mutually close to or pitch
Circle, stretch out during by external force, keep the power of oriented middle shrinkage, for the ease of coupling, fixed and loading, extension spring both ends
Provided with spring hook.But existing extension spring there is：Structural strength is low, and damping effect is poor, when stress is larger, is easily deformed,
Easily broken off relations during use, easy to wear, the problems such as service life is short.
Utility model content
Purpose of utility model：In view of the deficienciess of the prior art, the purpose of this utility model be to provide a kind of length can
With flexible, load is big, extension spring easy for installation.
Technical scheme：In order to realize above-mentioned purpose of utility model, the technical solution adopted in the utility model is as follows：
A kind of extension spring, including spring body, telescoping mechanism, linking arm and drag hook, one end connecting spring body of the linking arm,
The other end connection drag hook of linking arm, the drag hook rotate relative to linking arm；The spring body includes the first spring body and the
Two spring bodies, the telescoping mechanism are connected between the first spring body and second spring body, and the telescoping mechanism includes hollow
Sleeve and the loop bar for being socketed in sleeve inner, the sleeve include closed end and openend, the closed end of the sleeve and first
The spring wire extended the connection of spring body, the loop bar stretched out from the openend of sleeve and with second spring body by integral forming.
Further, through hole is provided with the sleeve lateral wall, the set rod outer surface offers groove, and loop bar is fully-inserted
After in sleeve, through through hole and it is caught in using pre-loading screw in the groove of set rod outer surface, fixes telescoping mechanism.
Further, loop bar stretches into the termination of sleeve inner and is provided with positive stop end.
Further, the first spring body or second spring body are grouped by integrally formed cylindrical part and tapered portion
Into the heavy caliber end of the conical section is connected with cylindrical part, and the small-caliber end of the conical section is connected with linking arm.
Further, rotating device is provided between the linking arm and drag hook, the rotating device is one end open
Hollow box, described rotating device one end are fixedly connected with linking arm, and the end of drag hook is stretched into rotating device from opening side,
The end set limited location block of the drag hook.
Further, the drag hook periphery is provided with non-slip rubber set, and the outer surface of the non-slip rubber set is provided with anti-
Sliding particle.
Beneficial effect：Compared with prior art, the utility model has advantages below：
Extension spring of the present utility model is divided into the first spring body and second spring body, and spring body plays buffering in stretching and made
With, elasticity more preferably, in the first spring body and second spring body is provided with telescoping mechanism, when telescoping mechanism elongates, the use of extension spring
Length increases, and the setting of telescoping mechanism can easily change the use length of extension spring, and adaptability is stronger.Spring body is divided into cylinder
Shape part and conical section, the small-caliber end of conical section are stressed directly, and the load of conical section is big, and rigidity is strong, enhance drawing
The overall load of spring.In addition, the drag hook of extension spring of the present utility model can be with 360 ° of rotations, when in use, can be according to installation position
Put and be easily adjusted angle, it is time saving and energy saving.
Brief description of the drawings
Fig. 1 is extension spring structure schematic diagram；
Structural representation when Fig. 2 is the elongation of extension spring stretching structure；
Fig. 3 is extension spring rotary device structure schematic diagram；
Fig. 4 is extension spring telescoping mechanism structural representation；
Fig. 5 is extension spring structure spring body enlarged drawing.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is furtherd elucidate, embodiment is with the utility model skill
Implemented under premised on art scheme, it should be understood that these embodiments are merely to illustrate the utility model rather than limit this practicality
New scope.
As shown in Figures 1 to 5, a kind of extension spring, including spring body 1, telescoping mechanism 2, linking arm 3 and drag hook 4, linking arm 3
One end connecting spring body 1, the other end connection drag hook 4 of linking arm 3, drag hook 4 rotates relative to linking arm 3；Spring body 1 includes
First spring body 11 and second spring body 12, the first spring body 11 or second spring body 12 are by integrally formed cylindrical part
13 and conical section 14 form, the heavy caliber end of conical section 14 is connected with cylindrical part 13, conical section 14 it is small-bore
End is connected with linking arm 3.
Telescoping mechanism 2 is connected between the first spring body 11 and second spring body 12, and telescoping mechanism 2 includes hollow sleeve
21 and the loop bar 22 that is socketed in sleeve 21 inside, sleeve 21 include closed end and openend, the closed end of sleeve 21 and the first bullet
The spring wire extended the connection of spring body 11, loop bar 22 stretched out from the openend of sleeve 21 and with the one of second spring body 12 into
Type.
It is provided with through hole in the side wall of sleeve 21, the outer surface of loop bar 22 opens up fluted 23, in the fully-inserted sleeve 21 of loop bar 22
Afterwards, through through hole and it is caught in using pre-loading screw 24 in the groove 23 of the outer surface of loop bar 22, fixes telescoping mechanism 2.Loop bar 22
The termination stretched into inside sleeve 21 is provided with positive stop end 25, and when loop bar 22 is completely pulled out, positive stop end 25 can prevent loop bar 22
Abjection.
Rotating device 5 is provided between linking arm 3 and drag hook 4, rotating device 5 is the hollow box of one end open, is rotated
The one end of device 5 is fixedly connected with linking arm 3, and the end of drag hook 4 is stretched into rotating device 5 from opening side, and the end of drag hook 4 is set
It is equipped with limited block 51.
The periphery of drag hook 4 is provided with non-slip rubber set, and the outer surface of non-slip rubber set is provided with antiskid particles, and antiskid particles can
To be arranged on the one side that non-slip rubber set is located at the inner side of drag hook 4, antiskid particles are shaped to circular or triangle.
Extension spring of the present utility model is divided into the first spring body and second spring body, and spring body plays buffering in stretching and made
With, elasticity more preferably, in the first spring body and second spring body is provided with telescoping mechanism, when telescoping mechanism elongates, the use of extension spring
Length increases, and the setting of telescoping mechanism can easily change the use length of extension spring, and adaptability is stronger.
Spring body is divided into cylindrical part and conical section, and the small-caliber end of conical section is stressed directly, conical section
Load is big, and rigidity is strong, enhances the overall load of extension spring.In addition, the drag hook of extension spring of the present utility model can be rotated with 360 °,
In use, angle can be easily adjusted according to installation site, it is time saving and energy saving.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (6)
- A kind of 1. extension spring, it is characterised in that：Including spring body (1), telescoping mechanism (2), linking arm (3) and drag hook (4), the company One end connecting spring body (1) of arm (3) is connect, the other end connection drag hook (4) of linking arm (3), the drag hook (4) is relative to connection Arm (3) rotates；The spring body (1) includes the first spring body (11) and second spring body (12), telescoping mechanism (2) connection Between the first spring body (11) and second spring body (12), the telescoping mechanism (2) includes hollow sleeve (21) and socket In the internal loop bar (22) of sleeve (21), the sleeve (21) includes closed end and openend, the closed end of the sleeve (21) It is connected with the spring wire extended of the first spring body (11), the loop bar (22) is stretched out from the openend of sleeve (21) and with the Two spring bodies (12) are integrally formed.
- 2. extension spring according to claim 1, it is characterised in that：Through hole, the loop bar are provided with sleeve (21) side wall (22) outer surface opens up fluted (23).
- 3. extension spring according to claim 1 or 2, it is characterised in that：The loop bar (22) stretches into the internal end of sleeve (21) Head is provided with positive stop end (25).
- 4. extension spring according to claim 1, it is characterised in that：First spring body (11) or second spring body (12) It is made up of integrally formed cylindrical part (13) and conical section (14), the heavy caliber end of the conical section (14) and cylinder Shape part (13) is connected, and the small-caliber end of the conical section (14) is connected with linking arm (3).
- 5. extension spring according to claim 1, it is characterised in that：Rotation is provided between the linking arm (3) and drag hook (4) Device (5), the rotating device (5) are the hollow box of one end open, and described rotating device (5) one end is solid with linking arm (3) Fixed connection, the end of drag hook (4) are stretched into rotating device (5) from opening side, the end set limited location block of the drag hook (4) (51)。
- 6. extension spring according to claim 1, it is characterised in that：Drag hook (4) periphery is provided with non-slip rubber set, described The outer surface of non-slip rubber set is provided with antiskid particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829618.8U CN207111798U (en) | 2017-07-10 | 2017-07-10 | Extension spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720829618.8U CN207111798U (en) | 2017-07-10 | 2017-07-10 | Extension spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111798U true CN207111798U (en) | 2018-03-16 |
Family
ID=61587971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720829618.8U Active CN207111798U (en) | 2017-07-10 | 2017-07-10 | Extension spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425969A (en) * | 2018-05-07 | 2018-08-21 | 浙江武义张氏包装实业有限公司 | Stretcher in tension control structure |
| KR102036291B1 (en) * | 2018-05-23 | 2019-10-24 | 허욱 | Shoulder strap for backpack with a shock-absorbing structure |
-
2017
- 2017-07-10 CN CN201720829618.8U patent/CN207111798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425969A (en) * | 2018-05-07 | 2018-08-21 | 浙江武义张氏包装实业有限公司 | Stretcher in tension control structure |
| KR102036291B1 (en) * | 2018-05-23 | 2019-10-24 | 허욱 | Shoulder strap for backpack with a shock-absorbing structure |
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