CN110970258A - Scissor type isolating switch contact finger auxiliary clamping device - Google Patents
Scissor type isolating switch contact finger auxiliary clamping device Download PDFInfo
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- CN110970258A CN110970258A CN201911374448.9A CN201911374448A CN110970258A CN 110970258 A CN110970258 A CN 110970258A CN 201911374448 A CN201911374448 A CN 201911374448A CN 110970258 A CN110970258 A CN 110970258A
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- support
- elastic
- opening
- clamping device
- auxiliary clamping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
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Abstract
The invention discloses a scissor type isolating switch contact finger auxiliary clamping device, which comprises: the support body is provided with a first support and a second support, the middle parts of the first support and the second support are hinged together, one ends of the first support and the second support are correspondingly formed into clamping ends for being connected with a circuit, the other ends of the first support and the second support are correspondingly formed into elastic ends, the clamping ends and the elastic ends can be opened and closed simultaneously, and the opening and closing degree of the clamping ends can be controlled by adjusting the opening and closing degree of the elastic ends; the opening and closing mechanism is arranged on the elastic end and used for controlling the opening and closing degree of the elastic end; the whole auxiliary clamping device is simple and labor-saving to disassemble and assemble, so that the independent maintenance work of technicians is facilitated, and the manpower and material resource expenditure for maintenance can be reduced; in addition, because the structure is compact, the parts can be prevented from flying and hurting people.
Description
Technical Field
The invention belongs to the technical field of switches, and particularly relates to a scissor type isolating switch contact finger auxiliary clamping device.
Background
In an electric power transmission and distribution system, the clamp type isolating switch is widely applied to a transformer substation by virtue of the unique advantages of the structure. However, in the actual operation of the substation, as the operation time of the equipment increases, the clamping force at the contact finger of the contact is not enough due to the influence of series factors such as the looseness of parts and the change of the environment. The clamp force at the contact finger position is insufficient, so that the through-current capacity of a clamp area can be directly influenced, the temperature of the area is overhigh, the burning loss of the isolating switch can be caused under the serious condition, and therefore the power failure maintenance is needed when the condition of high temperature is found. The power supply system of the power grid in China is huge, the influence among all nodes is close, when the system has large operation load but needs to be overhauled in a power failure, the power supply system has to be switched off and limited, and the reliability of the power supply of the power grid is seriously influenced. For the above reasons, it is widely demanded to provide a solution that can perform maintenance operation directly under an electrified condition and temporarily solve the problem of insufficient clamping force at the contact finger of the contact.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the scissor type isolating switch contact finger auxiliary clamping device which is easy and simple to operate and convenient for independent live-line operation of maintainers.
According to the scissors formula isolator finger auxiliary clamping device of the embodiment of this invention, include:
the support comprises a support main body, a first support and a second support, wherein the middle parts of the first support and the second support are hinged together, one ends of the first support and the second support are correspondingly formed into clamping ends for being connected with a circuit, the other ends of the first support and the second support are correspondingly formed into elastic ends, the clamping ends and the elastic ends can be opened and closed simultaneously, and the opening and closing degree of the clamping ends can be controlled by adjusting the opening and closing degree of the elastic ends; and the opening and closing mechanism is arranged on the elastic end and used for controlling the opening and closing degree of the elastic end.
The scissor type disconnecting switch contact finger auxiliary clamping device provided by the embodiment of the invention at least has the following technical effects:
the invention provides a scissor type isolating switch contact finger auxiliary clamping device which is mainly used for auxiliary clamping of a contact finger of a pincer clamp type isolating switch and ensures the stability of node connection by improving the clamping force at the contact finger position of the contact finger. Specifically, the main body of the auxiliary clamping device is arranged to be similar to a scissor-type main body structure, so that on one hand, the structure of the auxiliary clamping device can be greatly simplified, and on the premise of ensuring the clamping function, the light weight and the miniaturization of the auxiliary clamping device are realized, so that a technician can independently perform live operation; on the other hand, the scissors type main body structure is labor-saving, so that a technician can open and close the auxiliary clamping device through simple operation to disassemble and assemble the auxiliary clamping device; in addition, the number of parts of the whole auxiliary clamping device is small, and a closed structure is adopted, so that the situation that parts collapse and fly is not easy to happen, and the occurrence of accidents of hurting people can be avoided to a certain extent.
According to some embodiments of the invention, the opening and closing mechanism is provided with a rotating structure, the rotating structure is rotatably arranged between the upper end and the lower end of the elastic end, the opening and closing degree of the elastic end can be adjusted by rotating the rotating structure, and the operation is simple and convenient for technicians.
According to some embodiments of the present invention, the opening and closing mechanism is further provided with an elastic supporting structure between the upper end and the lower end of the elastic end, so as to elastically support the upper end and the lower end of the elastic end, so that the elastic end has a certain restoring function, and the operation of a technician is simplified to a certain extent.
According to some embodiments of the invention, the resilient support structure is threaded onto the rotating structure.
According to some embodiments of the invention, the upper end and the lower end of the elastic end are respectively provided with a connecting structure, the rotating structures are in threaded connection and penetrate through the connecting structures, the two connecting structures are respectively provided with internal threads, and the two connecting structures are symmetrically arranged so that the thread turning directions of the two connecting structures are opposite, so that the two connecting structures can be close to or far away from each other when the rotating structures rotate, and the elastic end can be tightened or loosened.
According to some embodiments of the invention, the upper and lower ends of the clamping end are provided with mutually closed serrations for improving the clamping force.
According to some embodiments of the invention, the connection structure is provided as a connection block provided with a through hole in which the internal thread is provided.
According to some embodiments of the invention, the rotating structure is a pull rod, the pull rod is provided with an external thread matched with the internal thread of the connecting block, and one end of the pull rod is provided with a fixing hole for rotation.
According to some embodiments of the invention, the elastic support structure is made of high modulus springs for improved support and return capability.
According to some embodiments of the invention, the first and second brackets are provided with insulating pads on the inner walls of the clamping ends for clamping, so as to prevent the auxiliary clamping device from being energized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic structural view of a scissor type disconnecting switch contact finger auxiliary clamping device;
FIG. 2-a schematic structural view of the first stent;
FIG. 3-schematic view of the structure of the connection block;
reference numerals:
the device comprises a first bracket 101, a second bracket 102, a connecting block 103, a spring 104 and a pull rod 105.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 3, the invention provides a scissor-type disconnecting switch contact finger auxiliary clamping device, which is mainly used for auxiliary clamping of a contact finger of a pincer-type disconnecting switch, and the stability of circuit node connection is ensured by improving the clamping force at the contact finger.
Specifically, as shown in fig. 1, the scissor-type disconnecting switch contact finger auxiliary clamping device provided by the present invention comprises:
the support body is provided with a first support 101 and a second support 102, the middle parts of which are hinged together, one ends of the first support 101 and the second support 102 correspondingly form a clamping end for connecting a circuit, the other ends of the first support 101 and the second support 102 correspondingly form an elastic end, the clamping end and the elastic end can be opened and closed simultaneously, and the opening and closing degree of the clamping end can be controlled by adjusting the opening and closing degree of the elastic end;
the opening and closing mechanism is arranged on the elastic end and used for controlling the opening and closing degree of the elastic end.
In the above structure, the composition essence of first support 101 and second support 102 provides a scissors formula support major structure, scissors formula support major structure has laborsaving, the advantage of being convenient for operate, the single dismouting operation that can realize auxiliary clamping device under the electrified condition of technical staff, for current auxiliary clamping device, auxiliary clamping device can make whole auxiliary clamping device have simpler structural composition, littleer size and lighter weight on the basis of realizing the centre gripping, thereby reach the intensity of labour who reduces technical staff, reduce its operating time's purpose, and can practice thrift manpower and material resources cost for maintenance work.
The present application further describes the specific structure and operation principle of the auxiliary clamping device according to the functions and purposes described above:
in consideration of the fact that the scissor-type support structure can be opened and closed in various ways, a method for meeting the requirement of live working needs to be selected. Specifically, since the technician often performs live-wire work through the insulating rod, the insulating rod can be used to control the opening and closing mechanism.
Specifically, according to some embodiments of the present invention, the opening and closing mechanism is provided with a rotating structure, the rotating structure is rotatably installed between the upper end and the lower end of the tightening end, the opening and closing degree of the tightening end can be adjusted by rotating the rotating structure, that is, a technician fixes an insulating rod on the rotating structure, and the tightening end can be adjusted by rotating the rotating structure while the clamping end is fixed; particularly, the clamping ends can be fixed by a plurality of methods, and can be clamped by a clamping tool, or a connecting hole can be formed in the first support 101 or the second support 102, and an insulating rod is further installed through the connecting hole, so that a technician can fix one insulating rod and rotate the other insulating rod, and the disassembly and assembly operation of the switch can be conveniently completed by one person.
The elastic end is further designed here in order to increase the adjustment effect of the elastic end. That is, according to a further embodiment of the present invention, the opening and closing mechanism is further provided with an elastic supporting structure between the upper end and the lower end of the elastic end for elastically supporting the upper end and the lower end of the elastic end.
Particularly, under the normal clamping state, the elastic supporting structure can be set to be compressed without force or compressed in advance to a certain degree, the pre-compression can provide a supporting force for the upper end and the lower end of the elastic end, and the clamping end is provided with the occlusal force, so that the clamping effect can be improved by the pre-compression.
Further, in view of the mounting of the elastic support structure, according to some embodiments of the present invention, the elastic support structure is threaded onto the rotation structure.
Also, in view of the installation of the rotation structure, according to some embodiments of the present invention, the upper end and the lower end of the tightening end are each provided with a connection structure, the rotation structure is threadedly coupled to and penetrates through the connection structure, both the connection structures are provided with internal threads, and the two connection structures are symmetrically arranged such that the thread directions of the two connection structures are opposite.
The opposite screwing directions of the threads have important significance, and the rotating structure can enable the connecting structures to be close to each other or be away from each other in the set state, so that the opening and closing degree of the elastic end can be adjusted, and the purpose of controlling the opening and closing of the clamping end is achieved.
Obviously, in order to improve the clamping capacity of the clamping end, a tooth structure may be provided, that is, according to some embodiments of the present invention, as shown in fig. 1 and 2, the upper end and the lower end of the clamping end are provided with teeth closed to each other for improving the clamping force.
Further, according to some embodiments of the present invention, as shown in fig. 3, the connection structure is provided as a connection block 103, the connection block 103 is provided with a through hole, and an internal thread is provided in the through hole for screwing the rotation structure.
According to a further embodiment of the present invention, the rotation structure is provided as a pull rod 105, the pull rod 105 is provided with an external thread adapted to the internal thread of the connecting block 103 so that the pull rod 105 is screwed to the pull rod 105, one end of the pull rod 105 protrudes from one side of the connecting block 103, and a fixing hole is provided at the end to facilitate the rotation of the pull rod 105 after the insulation rod is inserted and fixed.
According to some embodiments of the present invention, the elastic support structure is made of high modulus springs 104 for improving the supporting and restoring effects.
The auxiliary clamping device is used for auxiliary clamping, so that no power is required. According to some embodiments of the present invention, the first and second brackets 101 and 102 are provided with an insulating pad on the inner wall of the clamping end for clamping to prevent the auxiliary clamping device from being energized.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a scissors formula isolator touches and indicates supplementary clamping device which characterized in that includes:
the support comprises a support body, a first support (101) and a second support (102) are arranged, the middle parts of the first support (101) and the second support (102) are hinged together, one ends of the first support (101) and the second support (102) correspondingly form clamping ends for connecting a circuit, the other ends of the first support (101) and the second support (102) correspondingly form elastic ends, the clamping ends and the elastic ends can be opened and closed simultaneously, and the opening and closing degree of the clamping ends can be controlled by adjusting the opening and closing degree of the elastic ends;
and the opening and closing mechanism is arranged on the elastic end and used for controlling the opening and closing degree of the elastic end.
2. A scissor type isolator finger assist grip as claimed in claim 1, wherein the opening and closing mechanism is provided with a rotation structure rotatably mounted between the upper and lower ends of the free end, the opening and closing degree of the free end being adjustable by rotating the rotation structure.
3. A scissor type disconnector finger auxiliary clamping device according to claim 2, wherein the opening and closing mechanism is further provided with an elastic support structure between the upper end and the lower end of the elastic end for elastically supporting the upper end and the lower end of the elastic end.
4. A scissor isolator finger assist grip as claimed in claim 3, wherein the resilient support structure is disposed through the pivot structure.
5. A scissor type isolator finger auxiliary clamping device according to claim 4, wherein the upper end and the lower end of the elastic end are provided with a connecting structure, the rotating structure is connected with and penetrates through the connecting structure in a threaded manner, the two connecting structures are provided with internal threads, and the two connecting structures are symmetrically arranged so that the thread directions of the two connecting structures are opposite.
6. A scissor isolator finger assist clamp as in claim 5 wherein the upper and lower ends of the clamp are provided with interengaging teeth for increased clamping force.
7. A scissor type disconnector finger auxiliary clamping device according to claim 6, characterized in that the connection structure is provided as a connection block (103), the connection block (103) is provided with a through hole, and the internal thread is provided in the through hole.
8. A scissor type disconnector finger auxiliary clamping device according to claim 7, characterized in that the rotating structure is a pull rod (105), the pull rod (105) is provided with an external thread adapted to the internal thread of the connecting block (103), and one end of the pull rod (105) is provided with a fixing hole for rotation.
9. A scissor isolator finger assist grip as in claim 8 wherein the resilient support structure is made of high modulus springs (104).
10. A scissor disconnector finger auxiliary clamping device according to any one of claims 1 to 9, characterized in that the first bracket (101) and the second bracket (102) are provided with insulating pads on the inner walls of the clamping ends for clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374448.9A CN110970258A (en) | 2019-12-27 | 2019-12-27 | Scissor type isolating switch contact finger auxiliary clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374448.9A CN110970258A (en) | 2019-12-27 | 2019-12-27 | Scissor type isolating switch contact finger auxiliary clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110970258A true CN110970258A (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911374448.9A Pending CN110970258A (en) | 2019-12-27 | 2019-12-27 | Scissor type isolating switch contact finger auxiliary clamping device |
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| Country | Link |
|---|---|
| CN (1) | CN110970258A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864610A (en) * | 2020-07-13 | 2020-10-30 | 广西电网有限责任公司梧州供电局 | Disconnecting link contact overhauling tool |
| WO2022006989A1 (en) * | 2020-07-06 | 2022-01-13 | 湖南长高高压开关集团股份公司 | Emergency processing device for electrified isolation switch |
-
2019
- 2019-12-27 CN CN201911374448.9A patent/CN110970258A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022006989A1 (en) * | 2020-07-06 | 2022-01-13 | 湖南长高高压开关集团股份公司 | Emergency processing device for electrified isolation switch |
| CN111864610A (en) * | 2020-07-13 | 2020-10-30 | 广西电网有限责任公司梧州供电局 | Disconnecting link contact overhauling tool |
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