CN108573821B - Load switch and operating handle - Google Patents
Load switch and operating handle Download PDFInfo
- Publication number
- CN108573821B CN108573821B CN201810575300.0A CN201810575300A CN108573821B CN 108573821 B CN108573821 B CN 108573821B CN 201810575300 A CN201810575300 A CN 201810575300A CN 108573821 B CN108573821 B CN 108573821B
- Authority
- CN
- China
- Prior art keywords
- handle
- sleeve
- spring
- handle sleeve
- rod
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a load switch and an operating handle, wherein the load switch comprises a spring operating mechanism and the operating handle, the operating handle comprises a handle sleeve and a handle rod penetrating through the handle sleeve, the handle sleeve is provided with a long hole at the penetrating position of the handle rod, when the spring of the spring operating mechanism moves through an inflection point for an angle, a main shaft and the handle sleeve are driven to accelerate suddenly, and the long hole is used for giving way for the reverse acceleration movement of the handle rod relative to the handle sleeve. The external force is applied to the handle rod to enable the spring to store energy, after the spring rotates a small angle through the inflection point, the spring can reset instantly to drive the handle sleeve to rotate in an accelerating mode, and the handle rod rotates in the opposite direction in the long hole relative to the handle sleeve. This process avoids the potential danger to the operator from the sudden acceleration of the handle lever with the handle sleeve, and the solution does not affect the assembly structure and assembly efficiency of the spring operator.
Description
Technical Field
The present invention relates to a load switch and an operation handle.
Background
The load switch is a switching device capable of closing, carrying and opening current under normal circuit conditions (or under specified overload operation conditions) and carrying current for specified time under specified abnormal loops (such as short circuit), and is necessary equipment in the field of power transmission and transformation, the load switch operating mechanism is a core part of the high-voltage load switch, the operating mechanism comprises an energy storage device, when the load switch is operated, the load switch can be closed and opened only after being fully stored, and the energy storage function is generally realized through an energy storage spring.
The load switch operating mechanism with the energy storage spring is widely applied, the operating principle is mainly that the energy storage spring stores energy by rotating a main shaft through an operating handle, the spring after the energy storage is completed can instantly release energy after rotating a small angle of an inflection point, the main shaft is rapidly driven to realize station switching, and the operating handle is suddenly accelerated to rotate in the process to generate potential danger to operators.
In order to solve the problem that the abrupt acceleration rotation of the operating handle causes potential danger to operators, the prior art generally cuts off the power transmission of the spring knife operating handle by arranging an overrunning clutch or a one-way bearing on a main shaft; in addition, a yielding groove is formed in the main shaft, so that the connecting spring and the crank arm of the main shaft idle or the main shaft and the connecting spring idle together with the crank arm of the main shaft, and further power transmission from the spring to the operating handle is cut off.
Disclosure of Invention
The invention aims to provide a load switch and an operating handle, which are used for solving the problem that the abrupt acceleration rotation of the operating handle causes potential danger to operators, and meanwhile, the assembly structure and the assembly efficiency of a spring operating mechanism are not affected.
In order to achieve the above purpose, the technical scheme of the load switch of the invention is as follows: the load switch comprises a spring operating mechanism and an operating handle, wherein the operating handle comprises a handle sleeve and a handle rod penetrating through the handle sleeve, a long hole is formed in the penetrating position of the handle rod by the handle sleeve, when a spring of the spring operating mechanism moves by an angle through an inflection point, the spring can drive the main shaft and the handle sleeve to suddenly accelerate, and the long hole is used for giving way for the reverse acceleration movement of the handle rod relative to the handle sleeve.
The beneficial effects of the invention are as follows: the load switch applies external force to the handle rod to enable the spring of the spring operating mechanism to store energy, at the moment, the handle rod is positioned at the front side of the rotation direction of the long hole on the handle sleeve, the handle rod is a driving part, the handle sleeve is a driven part, after the spring stores energy and turns a small angle of an inflection point, the spring can reset instantly to drive the main shaft to rotate in the same direction, so that the handle sleeve connected with the main shaft is driven to rotate in an accelerating way, at the moment, the handle sleeve is a driving part, and the handle rod rotates in the opposite direction in the long hole relative to the handle sleeve in the process of rotating the handle sleeve, so that the handle rod cannot rotate as the driven part of the handle sleeve. This process avoids the potential danger to the operator from the sudden acceleration of the handle lever with the handle sleeve, and the solution does not affect the assembly structure and assembly efficiency of the spring operator.
The handle sleeve is externally provided with a handle sleeve for shielding the long hole, the handle rod radially penetrates through the handle sleeve, the handle sleeve is used for shielding a long hole gap between the handle rod and the handle sleeve, and potential danger to operators caused by clamping the gap between the handle rod and the long hole in the process of rotating the handle sleeve relative to the handle rod is prevented; simultaneously, the handle sleeve also plays a limiting role on the handle rod, so that the handle rod and the handle sleeve can only rotate in the long hole of the handle sleeve around the axis of the handle sleeve, the horizontal movement of the handle rod in the long hole is limited, and the stability of structural connection among all parts of the operating handle is improved.
The two ends of the handle rod are respectively provided with a handle head for preventing the handle rod from falling out of the long hole. The handle head can be used as a force application point of a rotating handle.
To achieve the above object, the operating handle of the present invention comprises a handle sleeve and a handle bar passing through the handle sleeve, and is characterized in that: the handle sleeve is provided with a long hole at the passing position of the handle rod, when the spring of the corresponding spring operating mechanism moves by an angle past the inflection point, the main shaft and the handle sleeve are driven to accelerate suddenly, and the long hole is used for giving way for the reverse acceleration movement of the handle rod relative to the handle sleeve.
The handle sleeve is externally provided with a handle sleeve for shielding the long hole, and the handle rod radially penetrates through the handle sleeve.
The two ends of the handle rod are respectively provided with a handle head which prevents the handle rod from falling out of the long hole.
The operating handle of the invention has the same conception as the operating handle in the load switch, and the beneficial effects are not repeated.
Drawings
FIG. 1 is a schematic view of an assembly structure of an operating handle of the present invention;
FIG. 2 is a schematic view of a handle sleeve structure according to the present invention;
fig. 3 is a schematic view of the handle sleeve structure of the present invention.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
The embodiment of the load switch of the invention, as shown in fig. 1-3, comprises a spring operating mechanism (not shown) and an operating handle, wherein the operating handle, as shown in fig. 1, comprises a handle sleeve 4 and a handle rod 2, one end of the handle sleeve 4 is provided with a hole, and the hole is matched with a main shaft (not shown) of the spring operating mechanism and can drive the main shaft to rotate. The other end of the handle sleeve 4 is provided with a through hole which is a long hole 5, when a spring (not shown) of the spring operating mechanism moves through an angle of an inflection point, the main shaft and the handle sleeve 4 are driven to accelerate suddenly, at the moment, the handle rod 2 can move reversely in the long hole 5 relative to the handle sleeve 4, two ends of the handle rod 2 are respectively provided with a handle ball 1, and the handle balls 1 are handle heads for preventing the handle rod 2 from falling out of the long hole 5. The assembly of the handle sleeve 4 and the handle rod 2 is provided with a handle sleeve 3 sleeved outside the handle sleeve 4, a sleeve through hole 6 is formed in the handle sleeve 3, the handle rod 2 radially penetrates through the sleeve through hole 6 and can move in the long hole 5 around the axis of the handle sleeve 4 together with the handle sleeve 3.
When external force is applied to the handle rod 2 to enable a spring (not shown) of the spring operating mechanism to store energy, at the moment, the handle rod 2 is positioned at the front side of a rotation direction of a long hole 5 on the handle sleeve 4, the handle rod 2 is a driving piece, the handle sleeve 4 is a driven piece, after the spring stores energy and turns a small angle of inflection point, the spring quickly resets under the action of the spring force to drive the main shaft to accelerate and rotate, so that the handle sleeve 4 connected with the main shaft is driven to accelerate and rotate, at the moment, the handle sleeve 4 is a driving piece, and during the rotation process of the handle sleeve 4, the handle rod 2 and the handle sleeve 3 rotate in the opposite direction relative to the handle sleeve 4 in the long hole 5 under the limit action of the handle sleeve 3, so that the handle rod 2 cannot rotate as the driven piece of the handle sleeve 4, and the process avoids the potential danger of the sudden acceleration movement of the handle rod 2 along with the handle sleeve 4 to operators; the handle sleeve 3 shields the gap of the long hole 5 between the handle rod 2 and the handle sleeve 4, so that the sudden acceleration of the handle rod 2 and the handle sleeve 4 during the movement of the mechanism can avoid the sudden reduction of the gap between the handle rod 2 and the handle sleeve 4 to cause injury to operators. The scheme avoids potential danger to operators in the motion process of the mechanism, and the scheme does not influence the assembly structure and the assembly efficiency of the spring operating mechanism.
As example 2 of the present invention, it is different from example 1 in that: there is no handle sleeve in this scheme, after the spring motion has passed an angle of inflection point, drive handle sleeve and accelerate the motion suddenly, the handle pole is relative handle sleeve reverse motion in the slot hole, and this scheme also can avoid the mechanism to produce potential danger to operating personnel in the motion process, and does not influence spring operating mechanism's assembly structure and assembly efficiency.
As example 3 of the present invention, it is different from example 1 in that: the handle head can be T-shaped, L-shaped or other structures capable of preventing the handle rod from being pulled out of the long hole.
The operation handle of the present invention is the same as the operation handle embodiment in the load switch described above, and will not be described here again.
Claims (6)
1. The utility model provides a load switch, includes spring operating mechanism and operating handle, operating handle includes handle sleeve and passes handle telescopic handle pole, its characterized in that: the handle sleeve is provided with a long hole at the passing position of the handle rod, when the spring of the spring operating mechanism moves by an angle past the inflection point, the main shaft and the handle sleeve are driven to accelerate suddenly, and the long hole is used for giving way for the reverse acceleration movement of the handle rod relative to the handle sleeve.
2. The load switch of claim 1, wherein: the handle sleeve is provided with a handle sleeve, the handle sleeve is used for shielding the long hole, and the handle rod radially penetrates through the handle sleeve.
3. Load switch according to claim 1 or 2, characterized in that: the two ends of the handle rod are respectively provided with a handle head for preventing the handle rod from falling out of the long hole.
4. An operating handle, includes handle sleeve and passes handle lever of handle sleeve, its characterized in that: the handle sleeve is provided with a long hole at the passing position of the handle rod, when the spring of the corresponding spring operating mechanism moves by an angle past the inflection point, the main shaft and the handle sleeve are driven to accelerate suddenly, and the long hole is used for giving way for the reverse acceleration movement of the handle rod relative to the handle sleeve.
5. The operating handle according to claim 4, wherein: the handle sleeve is externally provided with a handle sleeve, and the handle rod radially penetrates through the handle sleeve.
6. The operating handle according to claim 4 or 5, characterized in that: the two ends of the handle rod are respectively provided with a handle head for preventing the handle rod from falling out of the long hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575300.0A CN108573821B (en) | 2018-06-06 | 2018-06-06 | Load switch and operating handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575300.0A CN108573821B (en) | 2018-06-06 | 2018-06-06 | Load switch and operating handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108573821A CN108573821A (en) | 2018-09-25 |
| CN108573821B true CN108573821B (en) | 2023-08-15 |
Family
ID=63573311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810575300.0A Active CN108573821B (en) | 2018-06-06 | 2018-06-06 | Load switch and operating handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108573821B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836252A (en) * | 2012-11-23 | 2014-06-04 | 西安金和光学科技有限公司 | Multipurpose valve handle |
| CN203701718U (en) * | 2013-11-20 | 2014-07-09 | 上海宇航系统工程研究所 | Operating handle device |
| CN204195610U (en) * | 2014-10-30 | 2015-03-11 | 林群富 | A kind of telescopic handle connecting rod can bending box spanner |
| CN105336514A (en) * | 2015-11-19 | 2016-02-17 | 国网福建省电力有限公司 | Combined type general-purpose operating handle device |
| CN207338156U (en) * | 2017-09-20 | 2018-05-08 | 国网江苏省电力公司南京供电公司 | A kind of band illumination ring main unit insulation operation handle |
| CN108116160A (en) * | 2017-12-27 | 2018-06-05 | 新昌县金裕装饰有限公司 | A kind of foldable vehicle tyre wrench |
| CN208256492U (en) * | 2018-06-06 | 2018-12-18 | 河南森源电气股份有限公司 | On-load switch and operation handle |
-
2018
- 2018-06-06 CN CN201810575300.0A patent/CN108573821B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836252A (en) * | 2012-11-23 | 2014-06-04 | 西安金和光学科技有限公司 | Multipurpose valve handle |
| CN203701718U (en) * | 2013-11-20 | 2014-07-09 | 上海宇航系统工程研究所 | Operating handle device |
| CN204195610U (en) * | 2014-10-30 | 2015-03-11 | 林群富 | A kind of telescopic handle connecting rod can bending box spanner |
| CN105336514A (en) * | 2015-11-19 | 2016-02-17 | 国网福建省电力有限公司 | Combined type general-purpose operating handle device |
| CN207338156U (en) * | 2017-09-20 | 2018-05-08 | 国网江苏省电力公司南京供电公司 | A kind of band illumination ring main unit insulation operation handle |
| CN108116160A (en) * | 2017-12-27 | 2018-06-05 | 新昌县金裕装饰有限公司 | A kind of foldable vehicle tyre wrench |
| CN208256492U (en) * | 2018-06-06 | 2018-12-18 | 河南森源电气股份有限公司 | On-load switch and operation handle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108573821A (en) | 2018-09-25 |
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