CN203371494U - Spring stretching device - Google Patents
Spring stretching device Download PDFInfo
- Publication number
- CN203371494U CN203371494U CN201320427244.9U CN201320427244U CN203371494U CN 203371494 U CN203371494 U CN 203371494U CN 201320427244 U CN201320427244 U CN 201320427244U CN 203371494 U CN203371494 U CN 203371494U
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- China
- Prior art keywords
- base
- spring
- screw rod
- stretching
- stretching device
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- Expired - Lifetime
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Abstract
The utility model discloses a spring stretching device which comprises a base (1), two supporting rods (2) arranged on the base (1), a stretching screw rod (3) arranged in the middle of the base (1), a stretching plate (4) arranged on the stretching screw rod (3) in a sleeved mode and a flexible rope (5) with two ends arranged on the stretching plate (4). A nut (6) is arranged at the top of the stretching screw rod (3), and fixing rods (7) are arranged on the tops of the supporting rods (2). The spring stretching device has the advantages of being capable of disassembling springs on equipment conveniently, simple in structure, high in economical efficiency and convenient to operate.
Description
Technical field
The utility model relates to a kind of spring stretching device.
Background technology
The operating mechanism of large electric switch generally need to use spring to provide energy for its quick acting, spring on equipment generally in extended state, if needing the dismounting spring is safeguarded equipment, because of working space limited, large-scale hydraulic test can not use, because the spring retraction force is large, only depend on artificial strength to be difficult to spring is pulled open again.
Summary of the invention
The purpose of this utility model is to provide a kind of spring stretching device, is convenient to the spring on equipment is removed.
For addressing the above problem, technical solution adopted in the utility model is:
A kind of spring stretching device, comprise base, be arranged on two support bars on base, be arranged on the stretching screw rod at base middle part, drawing godet and the two ends that are enclosed within on the stretching screw rod are arranged on the flexible strand on drawing godet, described stretching screw rod top arranges nut, and described support bar top arranges fixed bar.Fixed bar is fixing for this device, catches on the hook of the end of spring by flexible strand, rotating nut, its bottom to the stretching screw rod is moved, drawing godet is pushed away downwards, flexible strand is tightened the rear hook to spring and is stretched, and the hook of spring is loosening, and finally be removed.The utility model is set about from the hook of spring end, has solved the trouble of spring retraction, has also saved manpower.
As further improvement of the utility model, described fixed bar is fixed on the support bar top setting.Fixed bar and support bar fix, and prevent that support bar from rotating around fixed bar.
As further improvement of the utility model, described drawing godet two ends have the gap matched with the bar that stretches.Gap is set on drawing godet, matches with the stretching bar, prevent that drawing godet from rotating around the stretching screw rod in drawing process, flexible strand just can not be wound around, and facilitates reusing of device.
As of the present utility model, further improve, described stretching screw rod is bolt, on described base, has bolt hole, and bolt is through bolt hole, and described nut and drawing godet are positioned on the bolt of base upper section.Bolt is standard component, is convenient for changing, and easily obtains, cheap, good economy performance.
In sum, the beneficial effects of the utility model are: the spring on detaching equipment easily, and also simple in structure, good economy performance, easy to operate.
The accompanying drawing explanation
Fig. 1 is structural scheme of mechanism of the present utility model.
Fig. 2 is the structural representation of drawing godet in reflection the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.
Spring stretching device as described in Figure 1, comprise base 1, be arranged on two support bars 2 on base 1, the stretching screw rod 3 that is arranged on base 1 middle part, drawing godet 4 and the two ends that are enclosed within on stretching screw rod 3 be arranged on the flexible strand 5 on drawing godet 4, described stretching screw rod 3 tops arrange nut 6, described support bar 2 tops are fixedly installed fixed bar 7, and described drawing godet 4 two ends have the gap 8 matched with the bar that stretches.
Foregoing stretching screw rod 3 is bolts, have bolt hole on described base 1, bolt is through bolt hole, described nut 6 is positioned on the bolt of base 1 upper section with drawing godet 4, base 1 is that three nuts are side by side " one " font and weld together formation, two support bars 2 and fixed bar 7 are all screw rods, a nut is respectively welded at two support bar 2 tops, and the screw conllinear of two nuts and being horizontally disposed with, and the nut of suitable quantity is set on fixed bar 7, and foregoing flexible strand 5 is steel wires.
Tighten the nut on fixed bar 7 during use, support bar 2 can not rotated around fixed bar 7, and fixed bar is fixing in place, then just steel wire catches on the hook of spring end, circumgyration stretch screw rod 3(bolt) head, relative displacement occurs in make to stretch screw rod 3 and base 1, promoting drawing godet 4 moves to base 1 direction, steel wire is stretched and tightens gradually by loosening state, until pull spring carrier arm and make spring carrier arm loosening, and finally unload whole spring.
In technical scheme described in the utility model; all be not specifically noted; be prior art or can realize the technical program by the conventional means in this area; and should be understood that; for those of ordinary skills; can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (4)
1. a spring stretching device, it is characterized in that: comprise base (1), be arranged on two support bars (2) on base (1), be arranged on the stretching screw rod (3) at base (1) middle part, drawing godet (4) and the two ends that are enclosed within on stretching screw rod (3) are arranged on the flexible strand (5) on drawing godet (4), described stretching screw rod (3) top arranges nut (6), and described support bar (2) top arranges fixed bar (7).
2. spring stretching device according to claim 1, it is characterized in that: described fixed bar (7) is fixedly installed on support bar (2) top.
3. spring stretching device according to claim 2, it is characterized in that: described drawing godet (4) two ends have the gap (8) matched with the bar that stretches.
4. according to the described spring stretching device of claims 1 to 3 any one, it is characterized in that: described stretching screw rod (3) is bolt, described base has bolt hole on (1), bolt is through bolt hole, and described nut (6) is positioned on the bolt of base (1) upper section with drawing godet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427244.9U CN203371494U (en) | 2013-07-18 | 2013-07-18 | Spring stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320427244.9U CN203371494U (en) | 2013-07-18 | 2013-07-18 | Spring stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203371494U true CN203371494U (en) | 2014-01-01 |
Family
ID=49834047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320427244.9U Expired - Lifetime CN203371494U (en) | 2013-07-18 | 2013-07-18 | Spring stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203371494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341847A (en) * | 2013-07-18 | 2013-10-09 | 国家电网公司 | Spring stretching device |
| CN107717872A (en) * | 2017-11-03 | 2018-02-23 | 上海大华电器设备有限公司 | Earthing spring puller |
-
2013
- 2013-07-18 CN CN201320427244.9U patent/CN203371494U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341847A (en) * | 2013-07-18 | 2013-10-09 | 国家电网公司 | Spring stretching device |
| CN103341847B (en) * | 2013-07-18 | 2016-05-25 | 国家电网公司 | A kind of spring stretching device |
| CN107717872A (en) * | 2017-11-03 | 2018-02-23 | 上海大华电器设备有限公司 | Earthing spring puller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |