CN112421277A - End screen leading-out mechanism - Google Patents

End screen leading-out mechanism Download PDF

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Publication number
CN112421277A
CN112421277A CN202011153517.6A CN202011153517A CN112421277A CN 112421277 A CN112421277 A CN 112421277A CN 202011153517 A CN202011153517 A CN 202011153517A CN 112421277 A CN112421277 A CN 112421277A
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CN
China
Prior art keywords
end screen
force transmission
clamping assembly
conductive part
transmission member
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.)
Pending
Application number
CN202011153517.6A
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Chinese (zh)
Inventor
庞志开
王剑韬
李光茂
占鹏
卢学容
蔡汉贤
李晓
陈勉之
罗伟良
黄飞强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority to CN202011153517.6A priority Critical patent/CN112421277A/en
Publication of CN112421277A publication Critical patent/CN112421277A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0425—Test clips, e.g. for IC's
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/22—Connectors or connections adapted for particular applications for transformers or coils

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The invention relates to a tail screen leading-out mechanism, which comprises: the first clamping assembly is provided with a first conductive part; the first clamping assembly is provided with a first conductive part which is in clamping fit with the first conductive part, and the first conductive part are matched with each other and can extend into the end screen port and act on an extraction needle in the end screen port; and the pressing piece is used for pressing the first clamping assembly and/or the second clamping assembly so as to enable the first conductive part and the second conductive part to be close to each other. This end screen draws mechanism does not need artifical handheld, can stably fix on end screen needle, can effectively draw out end screen needle signal, does not touch ground connection shell, reduces or even avoids the emergence of electric shock accident.

Description

End screen leading-out mechanism
Technical Field
The invention relates to the technical field of transformer bushings, in particular to an end screen leading-out mechanism.
Background
With the development of transformer technology, transformer bushings appear, which are important components of power transformers and mainly achieve the connection, ground insulation and supporting functions of outgoing lines inside the transformers. Since the operating conditions of the casing are very severe, it often gradually deteriorates or is damaged due to environmental influences, leading to grid failures. In order to ensure the normal work of a power grid, effective preventive tests and online monitoring are required to be carried out on the sleeve, when the transformer sleeve is tested on site, the design structure of a traditional transformer sleeve end screen leading-out needle is compact, and when the sleeve is subjected to dielectric loss and insulation resistance tests, a signal wire needs to be connected to the leading-out needle. The terminals of the signal wires of the existing experimental instrument are all crocodile clips, and cannot extend into the tail screen structure, so that the tail screen leading-out pins cannot be directly clamped.
In the traditional technology, a screwdriver is usually used for extending the interior of a sleeve pipe end screen during a field test, an outgoing line of the end screen is touched, and then the other end of the screwdriver is clamped by a signal wire of a test instrument so as to obtain a signal. The method needs manual operation, the screwdriver is easy to slide and touch the grounding shell, measurement errors are caused, and electric shock accidents are easy to happen due to manual operation in a high-voltage state.
Disclosure of Invention
Based on this, it is necessary to provide a tail screen leading-out mechanism, need not artifical handheld, can stably fix on the tail screen needle, can effectively lead out tail screen needle signal, does not touch ground connection shell, reduces or even avoids the emergence of electric shock accident.
A screenout exit mechanism comprising: the first clamping assembly is provided with a first conductive part; the first clamping assembly is provided with a first conductive part which is in clamping fit with the first conductive part, and the first conductive part are matched with each other and can extend into the end screen port and act on an extraction needle in the end screen port; and the pressing piece is used for pressing the first clamping assembly and/or the second clamping assembly so as to enable the first conductive part and the second conductive part to be close to each other.
In the assembly process of the end screen leading-out mechanism, the first clamping assembly and the second clamping assembly are matched with each other; and then, the pressing piece is arranged on the first clamping component and the second clamping component, so that the pressing piece presses the first clamping component and/or the second clamping component, and the first conductive part and the second conductive part are close to each other. Because the first conductive part and the second conductive part are matched with each other and can extend into the end screen port, the problem of difficult test wiring caused by compact design of the end screen of part of transformer bushings can be effectively solved. In the actual test process, firstly, the first conductive part and the second conductive part extend into the end screen port and act on the leading-out needle; then, the pressing piece is utilized to enable the first conductive part and the second conductive part to be clamped on the extraction pin; and finally, connecting the detection instrument with the end screen leading-out mechanism so as to complete the electrical connection of the leading-out needle. The end screen leading-out mechanism is stably fixed on the end screen needle, and effectively leads out an end screen needle signal. Meanwhile, manual operation is not needed in the fixed period, and the personal safety of experimenters and the reliability of experimental data are effectively guaranteed.
In one embodiment, the first clamping assembly includes a first force transmission member and a first positioning post, the first conductive portion and the first positioning post are both disposed on the first force transmission member, and the second clamping assembly is provided with a first through hole for the first positioning post to penetrate through.
In one embodiment, the second clamping assembly includes a second force transmission member and a second positioning column, the second positioning column and the second conductive portion are both disposed on the second force transmission member, the first through hole is disposed on the second force transmission member, the first force transmission member is provided with a second through hole, when the first force transmission member and the second force transmission member are stacked, the first positioning column penetrates into the second through hole, and the second positioning column penetrates into the first through hole.
In one embodiment, the first clamping assembly further comprises a first pressing plate, the first pressing plate is located on one side, opposite to the first force transmission piece, of the second force transmission piece and connected with the first positioning column, and the pressing piece is arranged between the first pressing plate and the second force transmission piece.
In one embodiment, the pressing member is an elastic member, the elastic member is sleeved on the first positioning column, one end of the elastic member abuts against the first pressing plate, and the other end of the elastic member abuts against the second force transmission member.
In one embodiment, the second clamping assembly further comprises a second pressing plate, the second pressing plate is located on one side, opposite to the second force transmission piece, of the first force transmission piece and connected with the second positioning column, and the pressing piece is arranged between the second pressing plate and the first force transmission piece. In one embodiment, the pressing member is an elastic member, the elastic member is sleeved on the second positioning column, one end of the elastic member abuts against the second pressing plate, and the other end of the elastic member abuts against the first force transmission member.
In one embodiment, the number of the first positioning posts and the number of the first through holes are more than two, and the first positioning posts and the first through holes are arranged in a one-to-one correspondence manner.
In one embodiment, the number of the second positioning columns and the number of the second through holes are more than two, and the second positioning columns and the second through holes are arranged in a one-to-one correspondence manner.
In one embodiment, a clamping hole is formed between the first conductive part and the second conductive part, and the clamping hole is used for being matched with the extraction needle.
In one embodiment, the first clamping assembly and/or the second clamping assembly is a conductive assembly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of the end screen drawing mechanism in an operating state according to an embodiment;
FIG. 2 is a schematic structural diagram of the end screen draw-off mechanism in a normal state according to an embodiment;
FIG. 3 is a top view of a tip screen exit mechanism as described in one embodiment.
Description of reference numerals:
100. the end screen leading-out mechanism comprises a end screen leading-out mechanism 110, a first clamping assembly 111, a first conductive part 112, a first force transmission part 113, a first positioning column 114, a second through hole 115, a first pressing plate 120, a second clamping assembly 121, a second conductive part 122, a second force transmission part 123, a second positioning column 124, a first through hole 125, a second pressing plate 130, a pressing part 131, an elastic part 140 and a clamping hole.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 3, a tail screen leading-out mechanism 100 includes: a first clamping assembly 110, a second clamping assembly 120, and a press 130. The first clamping assembly 110 is provided with a first conductive portion 111. The second clamping assembly 120 is provided with a second conductive part 121 clamped and matched with the first conductive part 111, and the first conductive part 111 and the second conductive part 121 are matched with each other to extend into the end screen port and clamp an extraction needle in the end screen port. The pressing member 130 is used for pressing the first clamping assembly 110 and/or the second clamping assembly 120 to bring the first conductive portion 111 and the second conductive portion 121 close to each other.
In the assembly process of the above end screen leading-out mechanism 100, first, the first clamping assembly 110 and the second clamping assembly 120 are mutually matched; then, the pressing member 130 is mounted on the first clamping assembly 110 and the second clamping assembly 120, so that the pressing member 130 presses the first clamping assembly 110 and/or the second clamping assembly 120, and the first conductive portion 111 and the second conductive portion 121 are brought close to each other. Because the first conductive part 111 and the second conductive part 121 are matched with each other and can extend into the end screen port, the problem of difficult test wiring caused by compact design of the end screen of part of transformer bushings can be effectively solved. In the actual test process, the first conductive part 111 and the second conductive part 121 are firstly extended into the end screen port and act on the extraction needle; the pressing member 130 is used again to clamp the first conductive part 111 and the second conductive part 121 on the extraction pin; finally, the detection instrument is connected to the end screen drawing mechanism 100, thereby completing the electrical connection of the drawing needle. The end screen leading-out mechanism 100 is stably fixed on the end screen needle, and effectively leads out an end screen needle signal. Meanwhile, manual operation is not needed in the fixed period, and the personal safety of experimenters and the reliability of experimental data are effectively guaranteed.
It should be noted that, the pressing element 130 is used for pressing the first clamping assembly 110 and/or the second clamping assembly 120 to bring the first conductive portion 111 and the second conductive portion 121 close to each other, and it should be understood that: the pressing member 130 presses the first clamping assembly 110 and the second clamping assembly 120 in three ways, namely, the pressing member 130 presses the first clamping assembly 110 to make the first conductive part 111 and the second conductive part 121 close to each other; secondly, the pressing member 130 presses the second clamping assembly 120 to make the first conductive part 111 and the second conductive part 121 close to each other; third, the pressing member 130 presses the first clamping assembly 110 and the second clamping assembly 120 simultaneously, so that the first conductive portion 111 and the second conductive portion 121 are close to each other.
In addition, the material of the first conductive portion 111 and the second conductive portion 121 is not particularly limited in this embodiment, and it is only required that the first conductive portion 111 and the second conductive portion 121 can conduct electricity, for example: the first conductive portion 111 and the second conductive portion 121 may be made of a conductive material such as copper, iron, or carbon rod. Of course, the first conductive portion 111 and the second conductive portion 121 can also be prepared by spraying conductive paint on the surface of the non-conductive material.
Alternatively, the pressing element 130 may be a pushing force, a pulling force, a magnetic force, or other force application means for pressing the first clamping assembly 110 and/or the second clamping assembly 120.
Optionally, the first conductive portion 111 is disposed on the first clamping assembly 110 by a snap connection, a screw connection, a welding, an integral molding, or other disposing methods.
Specifically, the first conductive portion 111 is disposed on the first clamping assembly 110 in an integrally molded manner. So set up, effectively improve first centre gripping subassembly 110's structural stability, the interference is less, and signal stability is stronger, is favorable to improving the use quality of end screen extraction mechanism 100. The present embodiment provides only one way of disposing the first conductive portion 111 on the first clamping assembly 110, but not limited thereto.
Optionally, the second conductive portion 121 is disposed on the second clamping assembly 120 by a snap connection, a screw connection, a welding, an integral molding, or other disposing methods.
Specifically, the second conductive portion 121 is disposed on the second clamping assembly 120 in an integrally molded manner. So set up, effectively improve the structural stability of second centre gripping subassembly 120, disturb less, signal stability is stronger, is favorable to improving the use quality of end screen extraction mechanism 100. The present embodiment provides only one arrangement manner of the second conductive portion 121 on the second clamping assembly 120, but not limited thereto.
In one embodiment, referring to fig. 1 and 2, the first clamping assembly 110 includes a first force transmitting member 112 and a first positioning post 113. The first conductive portion 111 and the first positioning column 113 are disposed on the first force transmitting element 112. The second clamping assembly 120 is provided with a first through hole 124 for the first positioning post 113 to pass through. The first positioning column 113 is added to be matched with the first through hole 124, so that a guiding effect is achieved for the movement of the first force transmission piece 112, the first force transmission piece 112 moves along the length direction of the first positioning column 113 under the force application effect of the pressure application piece 130, the movement of the first force transmission piece 112 close to and away from the second clamping component 120 is more stable, and the structural stability and the use performance of the end screen leading-out mechanism 100 are improved; and simultaneously, the safety factor of the end screen leading-out mechanism 100 is improved.
Further, referring to fig. 1, the second clamping assembly 120 includes a second force-transmitting member 122 and a second positioning post 123. The second positioning column 123 and the second conductive portion 121 are disposed on the second force transmitting member 122. The first through hole 124 is provided in the second force transmitting member 122. The first force transmission piece 112 is provided with a second through hole 114, when the first force transmission piece 112 and the second force transmission piece 122 are stacked, the first positioning column 113 penetrates into the second through hole 114, and the second positioning column 123 penetrates into the first through hole 124. The second positioning column 123 is matched with the second through hole 114 to guide the movement of the second force transmission piece 122, so that the second force transmission piece 122 moves along the length direction of the second positioning column 123 under the force application effect of the pressing piece 130, the movement of the second force transmission piece 122 relative to the approaching and keeping away process of the first clamping component 120 is more stable, the structural stability and the use performance of the end screen leading-out mechanism 100 are improved, and the safety factor of the end screen leading-out mechanism 100 is also improved.
Further, referring to fig. 1, the first clamping assembly 110 further includes a first pressing plate 115, the first pressing plate 115 is disposed on a side of the second force transmitting member 122 opposite to the first force transmitting member 112 and connected to the first positioning post 113, and a pressing member 130 is disposed between the first pressing plate 115 and the second force transmitting member 122. In this way, the first positioning post 113 penetrates through the second force transmission member 122, and opposite ends of the first force transmission member 122 are respectively connected with the first pressing plate 115 and the first transmission member 112, so that the second force transmission member 122 can move between the first pressing plate 115 and the first transmission member 112 in a guiding manner along the length direction of the first positioning post 113. At the same time, the pressing member 130 is arranged between the first pressure plate 115 and the second force-transmitting member 122, so that the second force-transmitting member 122 abuts against the first force-transmitting member 112 under the pressing action of the pressing member 130. When the end screen leading-out mechanism 100 works, external force is applied to enable the second force transmission piece 122 to be far away from the first force transmission piece 112, and after the external force is released, the first conductive part 111 and the second conductive part 121 are clamped on the end screen leading-out needle under the action of the pressing piece 130. The structure is simple, the operation is convenient, the reliability is strong, and the using effect and the overall quality of the end screen leading-out mechanism 100 are improved.
Alternatively, the first pressure plate 115 and the first positioning post 113 may be connected by welding, bolting, screwing, riveting, bonding, or other methods.
In this embodiment, the first pressing plate 115 is connected to the first positioning column 113 by a screw. The connection mode has the advantages of tight connection, convenient disassembly and maintenance, good stress, fatigue resistance, no looseness and effective improvement on the structural stability of the end screen leading-out mechanism 100. The present embodiment provides only one connection manner between the first pressing plate 115 and the first positioning column 113, but not limited thereto.
In one embodiment, the pressing member 130 is an elastic member 131. The elastic member 131 is sleeved on the first positioning post 113, one end of the elastic member 131 is abutted against the first pressing plate 115, and the other end of the elastic member 131 is abutted against the second force transmission member 122. Therefore, the elastic member 131 is sleeved on the first positioning column 113, which is beneficial to fixing the position of the elastic member 131, and preventing the elastic member 131 from falling off during operation, so that the structural design is more compact, and the structural stability of the end screen leading-out mechanism 100 is improved.
Alternatively, the elastic member 131 may be a spring, an elastic sleeve, or other elastic substance.
Specifically, the elastic member 131 is a spring. Thus, the spring is sleeved on the first positioning column 113, one end of the spring abuts against the first pressure plate 115, and the other end of the spring abuts against the second force transmission piece 122. When the first pressure plate 115 and the second force transmission element 122 are close to each other, the spring is compressed, elastic potential energy is accumulated, force is applied to the first pressure plate 115 and the second force transmission element 122, and after the external force is removed, the first conductive part 111 and the second conductive part 121 clamp the extraction needle in the end screen port. The springs are easy to deform, high in strength and long in service life, and the structural stability and the use quality of the end screen leading-out mechanism 100 are improved. The present embodiment provides only one selection manner of the elastic member 131, but not limited thereto.
In one embodiment, referring to fig. 1 and 2, the second clamping assembly 120 further includes a second platen 125. The second pressing plate 125 is located on a side of the first force transmission member 112 opposite to the second force transmission member 122, and is connected to the second positioning column 123, and a pressing member 130 is disposed between the second pressing plate 125 and the first force transmission member 112. Therefore, the second force transmission member 122 is sleeved on the first positioning post 113, the first positioning post 113 penetrates through the second force transmission member 122, and two opposite ends of the first positioning post are respectively connected with the first pressing plate 115 and the first transmission member 112, so that the second force transmission member 122 can move between the first pressing plate 115 and the first transmission member 112 in a guiding manner along the length direction of the first positioning post 113. Meanwhile, the second positioning column 123 penetrates through the first force transmission member 112, and opposite ends of the second positioning column 123 are respectively connected with the second pressing plate 125 and the second transmission member 122, so that the first force transmission member 112 can move between the second pressing plate 125 and the second transmission member 122 in a guiding manner along the length direction of the second positioning column 123. The pressing member 130 is arranged between the second pressure plate 125 and the first force transfer member 112 such that the first force transfer member 112 abuts against the second force transfer member 122 under the pressing action of the pressing member 130. When the end screen leading-out mechanism 100 works, external force is applied to enable the first force transmission piece 112 to be far away from the second force transmission piece 122, so that the first conductive part 111 and the second conductive part 121 are clamped on the end screen leading-out needle under the action of the pressing piece 130.
Alternatively, the second pressing plate 125 and the second positioning column 123 may be connected by welding, bolting, screwing, riveting, bonding, or other methods.
Specifically, the second pressing plate 125 and the second positioning column 123 are connected by a screw. The connection mode has the advantages of tight connection, convenient disassembly and maintenance, good stress, fatigue resistance, no looseness and effective improvement on the structural stability of the end screen leading-out mechanism 100. The present embodiment provides only one connection manner between the second pressing plate 125 and the second positioning column 123, but not limited thereto.
In one embodiment, the pressing member 130 is an elastic member 131, the elastic member 131 is disposed on the second positioning post 123, one end of the elastic member 131 abuts against the second pressing plate 125, and the other end of the elastic member 131 abuts against the first force transmission member 112. The elastic part 131 is sleeved on the second positioning column 123, so that the position of the elastic part 131 is favorably fixed, and the elastic part 131 is prevented from falling off during working, so that the structural design is more compact, and the structural stability of the end screen leading-out mechanism 100 is improved.
Alternatively, the elastic member 131 may be a spring, an elastic sleeve, or other elastic substance.
Specifically, the elastic member 131 is a spring. Thus, the spring is sleeved on the second positioning column 123, one end of the spring abuts against the second pressing plate 125, and the other end of the spring abuts against the first force transmission member 112. When the second pressing plate 125 and the first force transmission element 112 approach each other, the spring is compressed, and elastic potential energy is accumulated, so that force is applied to the second pressing plate 125 and the first force transmission element 112, and after the external force is removed, the first conductive part 111 and the second conductive part 121 clamp the extraction needle in the end screen port. The springs are easy to deform, high in strength and long in service life, and the structural stability and the use quality of the end screen leading-out mechanism 100 are improved. The present embodiment provides only one selection manner of the elastic member 131, but not limited thereto.
In one embodiment, referring to fig. 1 and 3, the number of the first positioning pillars 113 and the first through holes 124 is two or more, and the first positioning pillars 113 and the first through holes 124 are disposed in a one-to-one correspondence. So, set up first reference column 113 and first perforation 124 more than two, be favorable to stablizing the second and pass the stability of power piece 122 motion, simultaneously, first clamp plate 115 and first power piece 112 are connected to the reference column more than two, effectively improve first reference column 113's support performance for first power piece 112 and the atress of first clamp plate 115 are more even, are favorable to improving the structural stability of end screen guiding mechanism 100, improve its life-span and holistic use quality.
In one embodiment, referring to fig. 1 and fig. 2, two or more second positioning pillars 123 and two or more second through holes 114 are provided, and the second positioning pillars 123 and the second through holes 114 are disposed in a one-to-one correspondence. So, set up more than two second reference column 123 and second perforation 114, be favorable to stabilizing the stability of first power transmission piece 112 motion, simultaneously, second clamp plate 125 and second power transmission piece 122 are connected to more than two reference columns, effectively improve the support performance of second reference column 123 for the second power transmission piece 122 is more even with the atress of second clamp plate 125, is favorable to improving the structural stability of end screen guiding mechanism 100, improves life-span and holistic use quality.
In one embodiment, referring to fig. 1, a clamping hole 140 is formed between the first conductive portion 111 and the second conductive portion 121, and the clamping hole 140 is used for being matched with a pin. The clamping hole 140 can effectively improve the fit degree of the first conductive part 111 and the second conductive part 121 when clamping the end screen leading-out needle, so that the end screen leading-out mechanism 100 is more stable in clamping when in use and is not easy to slip and fall off, the structural stability of the end screen leading-out mechanism 100 is effectively improved, and the occurrence of electric shock accidents is reduced or even avoided.
Alternatively, the shape of the clamping hole 140 is cylindrical, conical, rectangular parallelepiped, threaded hole, or other.
Specifically, the clamping hole 140 is cylindrical in shape. Therefore, the fitting degree of the clamping holes 140 to the end screen leading-out needle can be effectively improved, so that the end screen leading-out mechanism 100 is more stable in clamping in use and not easy to slip and fall off, the structural stability of the end screen leading-out mechanism 100 is effectively improved, and electric shock accidents are reduced or even avoided. The present embodiment provides only one shape of the clamping hole, but not limited thereto.
Further, the length of the gripping hole 140 is greater than the length of the end screen extraction needle. Therefore, the contact area between the first conductive part 111 and the end screen leading-out needle and the contact area between the second conductive part 121 and the end screen leading-out needle during clamping can be effectively increased, the angle is not changed when the high end screen leading-out mechanism 100 clamps the end screen leading-out needle, the high end screen leading-out mechanism is more stable, the structural stability of the end screen leading-out mechanism 100 is effectively improved, the use quality of the high end screen leading-out mechanism is improved, and electric shock accidents are reduced or even avoided.
In one embodiment, first clamping assembly 110 and/or second clamping assembly 120 are electrically conductive assemblies. Therefore, when the structure of the end screen leading-out mechanism 100 is used, the signal clamp of the experimental instrument can be clamped at any position on the first clamping component 110 and/or the second clamping component 120 without being clamped on the first conductive part 111 or the second conductive part 121, so that the probability that the signal clamp of the experimental instrument touches the inside of the grounding shell is reduced, the stability of the measurement signal is higher, the measurement error is indirectly improved, and the personal safety of the experimenter and the reliability of the experimental data are ensured.
It should be noted that the first clamping assembly 110 and/or the second clamping assembly 120 are conductive components, and it should be understood that: there are three embodiments. The first embodiment is as follows: the first clamping assembly 110 is a conductive assembly. The second embodiment is as follows: the second clamping assembly 120 is a conductive assembly. The third embodiment is: both first clamping assembly 110 and second clamping assembly 120 are conductive assemblies. In addition, the conductive component can be made of conductive materials such as copper, iron, carbon rods and the like.
Further, the first force transfer member 111 has a greater length than the second force transfer member 121. So for first one end of passing power piece 111 provides the clamping position for the test instrument signal clamp, effectively reduces the signal clamp of test instrument and touches the inside probability of ground connection shell, makes measured signal's stability higher, indirectly improves measuring error, guarantees experimenter's personal safety and experimental data's reliability.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An end screen extraction mechanism, comprising:
the first clamping assembly is provided with a first conductive part;
the first clamping assembly is provided with a first conductive part which is in clamping fit with the first conductive part, and the first conductive part are matched with each other and can extend into the end screen port and act on an extraction needle in the end screen port;
and the pressing piece is used for pressing the first clamping assembly and/or the second clamping assembly so as to enable the first conductive part and the second conductive part to be close to each other.
2. The end screen leading-out mechanism according to claim 1, wherein the first clamping assembly comprises a first force transmission piece and a first positioning column, the first conductive part and the first positioning column are both arranged on the first force transmission piece, and the second clamping assembly is provided with a first through hole for the first positioning column to penetrate through.
3. The end screen leading-out mechanism according to claim 2, wherein the second clamping assembly includes a second force transmission member and a second positioning post, the second positioning post and the second conductive portion are both disposed on the second force transmission member, the first through hole is disposed on the second force transmission member, the first force transmission member is provided with a second through hole, when the first force transmission member and the second force transmission member are stacked, the first positioning post penetrates into the second through hole, and the second positioning post penetrates into the first through hole.
4. The end screen extraction mechanism of claim 3, wherein the first clamping assembly further comprises a first pressure plate, the first pressure plate is located on a side of the second force transmission member facing away from the first force transmission member and is connected to the first positioning post, and the pressing member is disposed between the first pressure plate and the second force transmission member.
5. The end screen extraction mechanism of claim 4, wherein the pressure member is an elastic member, the elastic member is sleeved on the first positioning post, one end of the elastic member abuts against the first pressure plate, and the other end of the elastic member abuts against the second force transmission member.
6. The end screen draw mechanism of claim 3, wherein the second clamping assembly further comprises a second pressure plate, the second pressure plate is located on a side of the first force transmission member facing away from the second force transmission member and is connected to the second positioning post, and the pressing member is disposed between the second pressure plate and the first force transmission member.
7. The end screen leading-out mechanism as claimed in claim 6, wherein the pressing member is an elastic member, the elastic member is sleeved on the second positioning column, one end of the elastic member abuts against the second pressing plate, and the other end of the elastic member abuts against the first force transmission member.
8. The end screen leading-out mechanism as claimed in claim 3, wherein the number of the first positioning posts and the first through holes is more than two, and the first positioning posts and the first through holes are arranged in a one-to-one correspondence manner; and/or
The second positioning columns and the second through holes are more than two, and the second positioning columns and the second through holes are arranged in a one-to-one correspondence mode.
9. The end screen extraction mechanism of any one of claims 1-8, wherein a clamping hole is formed between the first conductive portion and the second conductive portion, the clamping hole being configured to mate with the extraction pin.
10. The end screen extraction mechanism of any of claims 1-8, wherein the first clamping assembly and/or the second clamping assembly is a conductive assembly.
CN202011153517.6A 2020-10-26 2020-10-26 End screen leading-out mechanism Pending CN112421277A (en)

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CN202011153517.6A CN112421277A (en) 2020-10-26 2020-10-26 End screen leading-out mechanism

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Application Number Priority Date Filing Date Title
CN202011153517.6A CN112421277A (en) 2020-10-26 2020-10-26 End screen leading-out mechanism

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CN112421277A true CN112421277A (en) 2021-02-26

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1588884A (en) * 1967-09-18 1970-03-16
AU2389988A (en) * 1988-03-25 1989-10-16 Rubik Studio Muszaki Fejleszto Kisszovetkezet Clamping device
JPH0554786A (en) * 1991-08-22 1993-03-05 Fuji Electric Co Ltd Movable contact device of circuit breaker
US20020143363A1 (en) * 2001-03-29 2002-10-03 Alcon Grieshaber Ag Surgical instrument
DE102009050241A1 (en) * 2009-10-23 2011-05-26 Dominic Dipl.-Ing. Gruß Device for turning and aligning an object useful for a system for the automatic feeding of joining element into processing equipment, comprises a drive implemented over a wedge drive, and a wedge element
CN102779626A (en) * 2012-08-21 2012-11-14 浙江省电力公司电力科学研究院 High-voltage bushing end screen elastic sheet type leading out device
CN104220199A (en) * 2012-04-13 2014-12-17 罗伯特·博世有限公司 Power tool clamping device
CN205911455U (en) * 2016-08-25 2017-01-25 国网安徽省电力公司检修公司 High tension transmission line earthing terminal fastener
CN207882300U (en) * 2017-11-03 2018-09-18 深圳供电局有限公司 Test wire clamp for loop resistance meter
CN209471180U (en) * 2018-12-29 2019-10-08 广西电网有限责任公司桂林供电局 Sleeve of main transformer loop resistance special test wire clamp

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1588884A (en) * 1967-09-18 1970-03-16
AU2389988A (en) * 1988-03-25 1989-10-16 Rubik Studio Muszaki Fejleszto Kisszovetkezet Clamping device
JPH0554786A (en) * 1991-08-22 1993-03-05 Fuji Electric Co Ltd Movable contact device of circuit breaker
US20020143363A1 (en) * 2001-03-29 2002-10-03 Alcon Grieshaber Ag Surgical instrument
DE102009050241A1 (en) * 2009-10-23 2011-05-26 Dominic Dipl.-Ing. Gruß Device for turning and aligning an object useful for a system for the automatic feeding of joining element into processing equipment, comprises a drive implemented over a wedge drive, and a wedge element
CN104220199A (en) * 2012-04-13 2014-12-17 罗伯特·博世有限公司 Power tool clamping device
CN102779626A (en) * 2012-08-21 2012-11-14 浙江省电力公司电力科学研究院 High-voltage bushing end screen elastic sheet type leading out device
CN205911455U (en) * 2016-08-25 2017-01-25 国网安徽省电力公司检修公司 High tension transmission line earthing terminal fastener
CN207882300U (en) * 2017-11-03 2018-09-18 深圳供电局有限公司 Test wire clamp for loop resistance meter
CN209471180U (en) * 2018-12-29 2019-10-08 广西电网有限责任公司桂林供电局 Sleeve of main transformer loop resistance special test wire clamp

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