CN220189504U - Spring stretching device - Google Patents
Spring stretching device Download PDFInfo
- Publication number
- CN220189504U CN220189504U CN202321817223.8U CN202321817223U CN220189504U CN 220189504 U CN220189504 U CN 220189504U CN 202321817223 U CN202321817223 U CN 202321817223U CN 220189504 U CN220189504 U CN 220189504U
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- Prior art keywords
- connecting rod
- clamping sleeve
- sleeve
- guide
- spring
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- 238000004146 energy storage Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- Springs (AREA)
Abstract
The utility model relates to the field of spring stretching, in particular to a stretching device of an energy storage spring of a vacuum circuit breaker, which comprises a first clamping sleeve and a second clamping sleeve, wherein inner cavities of the first clamping sleeve and the second clamping sleeve are used for being matched with a spring assembly; the guide sleeve is fixedly connected with the second clamping sleeve and is connected with the first clamping sleeve through the guide rod; the connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod is arranged at the bottom of the second clamping sleeve, the third connecting rod is arranged at the bottom of the first clamping sleeve, one end, close to the first clamping sleeve, of the third connecting rod is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with one end of the first connecting rod, and the other end of the first connecting rod is hinged with a pin fixed at the bottom of the first clamping sleeve; the operating handle is arranged at the bottom of the connecting rod and is connected with the third connecting rod. Compared with the prior art, the utility model has the advantages that: the clamping is convenient and efficient; the movement is convenient, and the application range is wide; the structure is simple, and the cost is low; the labor-saving lever is used for operating the rotary handle, and the operation is easy.
Description
Technical Field
The utility model relates to the field of spring stretching, in particular to a spring stretching device which is simple and convenient to operate.
Background
In recent years, due to inconvenient installation of the energy storage spring of the vacuum circuit breaker, a lead screw nut is often adopted for stretching and then assembling, the mode is low in efficiency and inconvenient in clamping, a coating on the surface of a spring assembly is easy to damage to cause rust, and meanwhile, the tool is heavy and difficult to move.
Chinese patent CN201520436594 discloses a vacuum circuit breaker energy storage spring device, which changes the structure of directly mounting a pin on a frame, adds a U-shaped bent plate matched with a screw, connects the pin on the energy storage spring, and passes the pin through a pin hole on the bent plate to connect the two; then, a longer screw is threaded through the frame into a threaded hole in the flexural plate, thereby first stretching the spring; next, the shorter screw is threaded into the other threaded hole, the first longer screw is removed, and the spring is stretched a second time, and the cycle is completed to secure the flexural plate to the frame.
The utility model mainly changes the structure of the machine to ensure that the energy storage spring is convenient to be installed at a fixed position of the machine, however, the improvement has certain defects: the machine is relatively high in reconstruction cost, is not detachable, and cannot be adapted to all machines.
Therefore, the technical problems to be solved at present are: the device special for spring assembly operation is provided, so that the cost is reduced, and the application range is increased.
Disclosure of Invention
The utility model aims to solve the technical problems of overcoming the defects in the prior art and providing the spring stretching device which is simple and convenient to operate, simple in structure and low in cost
In order to achieve the above purpose, a spring stretching device is designed, which comprises a first clamping sleeve and a second clamping sleeve, wherein the inner cavities of the first clamping sleeve and the second clamping sleeve are used for being matched with a spring assembly; the guide sleeve is fixedly connected with the second clamping sleeve and is connected with the first clamping sleeve through the guide rod; the connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod is arranged at the bottom of the second clamping sleeve, the third connecting rod is arranged at the bottom of the first clamping sleeve, one end, close to the first clamping sleeve, of the third connecting rod is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with one end of the first connecting rod, and the other end of the first connecting rod is hinged with a pin fixed at the bottom of the first clamping sleeve; the operating handle is arranged at the bottom of the connecting rod and is connected with the third connecting rod.
Preferably, the first clamping sleeve and the second clamping sleeve are composed of an upper clamping sleeve and a lower clamping sleeve, one sides of the upper clamping sleeve and the lower clamping sleeve are connected through a shaft, and the other sides of the upper clamping sleeve and the lower clamping sleeve are connected through a butterfly nut in a locking mode.
Preferably, the top of the first clamping sleeve is provided with a fixing sleeve, the fixing sleeve is connected with one end of the guide rod, the other end of the guide rod is inserted into an inner hole of the guide sleeve, and the guide rod can freely axially slide in the inner hole of the guide sleeve.
Preferably, the outer diameter of one end of the guide rod far away from the guide sleeve is larger than that of one end close to the guide sleeve, so that the guide rod forms a step structure, and the guide rod is limited by free axial sliding.
Preferably, the traction block on the second clamping sleeve is matched with the convex block at the bottom of the spring assembly.
Compared with the prior art, the utility model has the advantages that:
1. the clamping is convenient, and the efficiency is high;
2. the device has the advantages of small volume, portability, convenient movement and wide application range;
3. the structure is simple, and the cost is low;
4. the labor-saving lever is used for operating the rotary handle, so that the operation is easier.
Drawings
FIG. 1 is a schematic view of a spring tension device according to the present utility model in a spring compressed state;
FIG. 2 is a schematic view of an open state of a spring tensioning device according to the present utility model;
FIG. 3 is a schematic view of a spring assembly of a spring tensioning device according to the present utility model;
FIG. 4 is a schematic view of the spring tension device according to the present utility model;
fig. 5 is a perspective view of a spring tension device provided by the present utility model.
In the figure: 1. a first ferrule; 2. a guide rod; 3. a guide sleeve; 4. a spring assembly; 5. a butterfly nut; 6. a connecting rod; 7. an operation handle; 8. a butterfly nut; 9. a lower cutting sleeve; 10. and a second ferrule.
Detailed Description
The construction and principles of the present utility model will be readily apparent to those skilled in the art from the following description taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1-5, the utility model discloses a spring stretching device, which comprises a first clamping sleeve, a second clamping sleeve, a guide sleeve, a connecting rod and an operating handle.
The first cutting ferrule and the second cutting ferrule are by last cutting ferrule and lower cutting ferrule constitution, and the inner chamber is used for cooperating the spring assembly, go up cutting ferrule and lower cutting ferrule one side and pass through the hub connection, and the opposite side passes through butterfly nut lock connection.
The top of the first clamping sleeve is provided with a fixed sleeve, the top of the second clamping sleeve is provided with a guide sleeve, and the guide sleeve is connected with the fixed sleeve through a guide rod.
Specifically, the fixed sleeve is connected with one end of the guide rod, the other end of the guide rod is inserted into the inner hole of the guide sleeve, the guide rod can slide freely and axially in the inner hole of the guide sleeve, the outer diameter of one end of the guide rod far away from the guide sleeve is larger than that of one end close to the guide sleeve, the guide rod forms a step structure, and the free axial sliding of the guide rod is limited.
And a traction block is also arranged on the second clamping sleeve and is matched with the convex block at the bottom of the spring assembly.
The connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod.
The first connecting rod is arranged at the bottom of the first cutting sleeve, one end of the first connecting rod, which is close to the first cutting sleeve, is hinged with a pin fixed at the bottom of the first cutting sleeve, and is hinged with one end of the second connecting rod
The third connecting rod is arranged at the bottom of the second clamping sleeve, and one end of the third connecting rod, which is close to the first clamping sleeve, is hinged with the other end of the second connecting rod;
the operating handle is arranged at the bottom of the connecting rod and is connected with the first connecting rod.
The operation steps are as follows:
step one: after the spring assembly is placed, the upper clamping sleeve is rotated to be attached to the lower clamping sleeve.
Step two: and rotating the butterfly nut to clamp the butterfly nut into the groove of the lower clamping sleeve and screwing the butterfly nut.
Step three: the hand device rotates the handle, when the mechanism passes through the dead point position, the mechanism is self-locking, the hand can be released, and the spring is in a stretching state and can be installed.
The above description is only specific to the embodiments of the utility model, but the scope of the utility model is not limited thereto, and any person skilled in the art who is skilled in the art to which the utility model pertains shall apply to the technical solution and the novel concept according to the utility model, and shall all be covered by the scope of the utility model.
Claims (5)
1. A spring stretching device is characterized by comprising
The inner cavities of the first clamping sleeve and the second clamping sleeve are used for being matched with the spring assembly;
the guide sleeve is fixedly connected with the second clamping sleeve and is connected with the first clamping sleeve through a guide rod;
the connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod is arranged at the bottom of the first clamping sleeve, the third connecting rod is arranged at the bottom of the second clamping sleeve, one end, close to the first clamping sleeve, of the third connecting rod is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with one end of the first connecting rod, and the other end of the first connecting rod is hinged with a pin fixed at the bottom of the first clamping sleeve;
the operating handle is arranged at the bottom of the connecting rod and is connected with the first connecting rod.
2. A spring tensioning device according to claim 1, wherein the first ferrule and the second ferrule are each comprised of an upper ferrule and a lower ferrule, one side of the upper ferrule and the lower ferrule being connected by a shaft, and the other side being lockingly connected by a wing nut.
3. A spring tensioning device according to claim 1, wherein the top of the first ferrule is provided with a retaining sleeve which is connected to one end of a guide rod, the other end of the guide rod being inserted into the bore of the guide sleeve, the guide rod being free to slide axially in the bore of the guide sleeve.
4. The spring tension device of claim 1, wherein the outer diameter of the end of the guide rod far from the guide sleeve is larger than the outer diameter of the end close to the guide sleeve, so that the guide rod forms a step structure to limit free axial sliding of the guide rod.
5. A spring tensioning device according to claim 1, wherein said second ferrule is provided with a traction block which cooperates with a projection on the bottom of the spring assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321817223.8U CN220189504U (en) | 2023-07-11 | 2023-07-11 | Spring stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321817223.8U CN220189504U (en) | 2023-07-11 | 2023-07-11 | Spring stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220189504U true CN220189504U (en) | 2023-12-15 |
Family
ID=89103907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321817223.8U Active CN220189504U (en) | 2023-07-11 | 2023-07-11 | Spring stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220189504U (en) |
-
2023
- 2023-07-11 CN CN202321817223.8U patent/CN220189504U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |