CN211206566U - Foot-operated switch and transmission line divide-shut brake ground connection operating means - Google Patents
Foot-operated switch and transmission line divide-shut brake ground connection operating means Download PDFInfo
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- CN211206566U CN211206566U CN201921408229.3U CN201921408229U CN211206566U CN 211206566 U CN211206566 U CN 211206566U CN 201921408229 U CN201921408229 U CN 201921408229U CN 211206566 U CN211206566 U CN 211206566U
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Abstract
The utility model provides a foot-operated switch and transmission line divide-shut brake ground connection operating means, the action through the running-board can realize the connection transform of internal circuit, its implementation includes contact break-make and non-contact break-make, can effectively insulate, the security of use has been improved greatly, based on the transmission line divide-shut brake ground connection operating means of foot-operated switch, realize circuit three-phase ground connection operation in line parameter test process, the operation of three-phase short circuit ungrounded, functions such as single ground connection operation, improve work efficiency, realize the safety test. Compare in hand-pulling type divide-shut brake device, the mode that adopts the pedal is easier to operate, has solved the experimental inconvenient problem of insulating gloves operation of wearing, wears insulating shoes to go to close a floodgate and can improve work efficiency greatly, reduces experimental risk.
Description
Technical Field
The utility model relates to a relevant technical field of electric power system, specific saying so relates to a foot-operated switch and transmission line divide-shut brake ground connection operating means.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Before the high-voltage transmission line is put into operation, the parameters of the transmission line are measured in addition to the insulation condition of the line, and are generally obtained through a line parameter test, wherein in the line parameter test, the line parameter test can comprise the measurement of induced potential, the measurement of insulation resistance, the phase sequence checking, the measurement of direct current resistance, the measurement of positive sequence impedance, the measurement of zero sequence impedance, the measurement of positive sequence capacitance, the measurement of zero sequence capacitance and the like, and the three-phase grounding operation, the three-phase short circuit ungrounded operation and the three-phase suspension operation are carried out by switching the arrangement positions of three-phase lines. Therefore, different test projects are carried out, the three-phase circuit needs to be grounded or ungrounded in the test process, but the three-phase wire has larger induced electricity when not grounded, particularly, under the condition of parallel circuits, the induced electricity is larger, the test risk is large, the traditional method realizes the grounding of the circuit through a hand-pulling type opening and closing switch, the risk of electric shock is extremely high even if workers wear insulating gloves, and the workers need to wear and remove the gloves frequently, so that great inconvenience is brought to the workers.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a foot-operated switch and transmission line divide-shut brake ground operating means, the action through the running-board can realize the connection transform of internal circuit, its implementation includes contact break-make and non-contact break-make, can effectively insulate, the security of use has been improved greatly, transmission line divide-shut brake ground operating means based on foot-operated switch realizes circuit three-phase ground connection operation in the circuit parameter test process, the operation of three-phase short circuit ungrounded, functions such as single ground connection operation, and the work efficiency is improved, realize the safety test. Compare in hand-pulling type divide-shut brake device, the mode that adopts the pedal is operated more easily, and it is very inconvenient to experimental insulating gloves operation of wearing, so wear insulating shoes to go to close a floodgate and can improve work efficiency greatly, reduce experimental risk.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
one or more embodiments provide a foot-operated switch, including an insulating base plate, the insulating base plate includes a switch circuit accommodating cavity and a flat plate region, the flat plate region is connected with a self-reset pedal through a rotating shaft, the switch circuit accommodating cavity is provided with a wire inlet end, a grounding end and a contact conductive plate which can be movably arranged, contacts of the wire inlet end and the grounding end are respectively arranged opposite to contacts on the contact conductive plate, and the contact plate is used for connecting the wire inlet end and the grounding end or disconnecting the wire inlet end and the grounding end when the self-reset pedal is pressed down.
Further, the switch circuit further comprises a power supply, a button switch and a coil which are connected in series, the contact conductive plate and the coil are arranged oppositely, the button switch is arranged in the flat plate area, and the self-resetting type pedal moves downwards to press the button switch.
Furthermore, the movably arranged contact conducting plate is a disc type guide plate, a contact is arranged on the surface of the disc type guide plate, the periphery of the disc type guide plate is provided with a telescopic inclined tooth part, and the opposite end of the pedal is in contact with the inclined tooth part.
Further, the telescopic inclined tooth part comprises a straight section and an inclined section, and the inclined tooth part is connected with the disc type guide plate through a first spring.
Furthermore, the disc type guide plate is electrically connected with a ground terminal, and a contact arranged on the disc type guide plate is used for being connected with or disconnected from a contact of a wire inlet end.
Furthermore, the distance between every two contact points on the disc type guide plate is equal to the distance between the contact point at the wire inlet end and the contact point at the grounding end.
Further, a transparent cover plate is further arranged above the insulating bottom plate, and the transparent cover plate is matched with the shell of the switch circuit accommodating cavity and is connected with the switch circuit accommodating cavity through a sealing ring.
Further, the sealing ring is a star-shaped sealing ring.
Furthermore, the transparent cover plate is made of plastic.
The power transmission line opening and closing grounding operation device comprises the pedal switch, wherein the wire inlet end of the pedal switch is connected with one phase wire of the power transmission line, and the grounding end is grounded, and the three phases are in short circuit and are not grounded.
Compared with the prior art, the beneficial effect of this disclosure is:
(1) this disclosed foot-operated switch, through setting up the running-board, the action through the running-board can realize the connection transform of internal circuit, and its implementation includes contact break-make and non-contact break-make, can effectively insulate, has improved the security of using greatly.
(2) The open-close brake grounding operation device for the power transmission line has the advantages that the three-phase grounding operation, the three-phase short circuit non-grounding operation, the single-phase grounding operation and other functions of the circuit are realized in the circuit parameter testing process, the working efficiency is improved, and the safety test is realized. Compare in hand-pulling type divide-shut brake device, the mode that adopts the pedal is operated more easily, and it is very inconvenient to experimental insulating gloves operation of wearing, so wear insulating shoes to go to close a floodgate and can improve work efficiency greatly, reduce experimental risk.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
FIG. 1 is a schematic diagram of a structure of an apparatus according to one or more embodiments;
fig. 2 is a structure diagram of a foot switch in embodiment 1 of the present disclosure;
fig. 3 is a switch circuit connection circuit diagram of embodiment 1 of the present disclosure;
fig. 4 is a schematic structural view of a disc guide of embodiment 1 of the present disclosure.
Wherein: 100. the foot switch comprises a pedal switch 1, a self-reset pedal 2, an insulating base plate 2-1, a switch circuit accommodating cavity 2-2, a flat plate area 3, a transparent cover plate 4, a contact conducting plate 5, an inclined tooth part 5-1, a straight section 5-2, an inclined section 6, a contact 7, a first spring 8, a second spring 9, a wire inlet end 10 and a grounding end.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In one or more embodiments, as shown in fig. 2, a foot switch 100 includes an insulating base plate 2, the insulating base plate 2 includes a switch circuit accommodating cavity 2-1 and a plate area 2-2, a self-resetting pedal 1 is connected to an upper side of the plate area 2-2 through a rotating shaft, the switch circuit accommodating cavity 2-1 is provided with a wire inlet end 9, a ground end 10 and a movably arranged contact conductive plate 4, contacts of the wire inlet end and the ground end are respectively arranged opposite to contacts on the contact conductive plate 4, and the contact plate is used for connecting the wire inlet end and the ground end or disconnecting the wire inlet end and the ground end when the self-resetting pedal is stepped on.
The incoming line end is used for connecting one end of a line to be connected, the grounding end is directly grounded, when the incoming line end and the grounding end are connected under the action of the self-resetting pedal plate, one end of the line to be connected is directly grounded, the grounding control for each phase of the line of the power transmission line can be directly connected with one phase of the power transmission line to serve as the line to be connected, and the pedal type switch 100 of the embodiment can be respectively arranged on each phase of the power transmission line.
The grounding end 10 and the wire inlet end 9 can be directly led out through a lead wire, or can be arranged in an interface mode and are connected with an external wire through an interface.
As one method for achieving the electrical connection between the incoming control line terminal and the ground terminal by pedaling, a contact-type connection method may be adopted, and as shown in fig. 3, the switching circuit further includes a power source V, a push button switch K1 and a coil L R connected in series, the contact conductive plate 4 is disposed opposite to the coil L R, the push button switch K1 is disposed in the flat plate region, and the self-resetting pedal 1 moves downward to press the push button switch K1.
As another way to realize the electrical connection between the inlet end and the ground end by the foot pedal, the structure shown in fig. 4 may be adopted, the movably arranged contact conducting plate 4 is a disc-type guide plate 4, the surface of the disc-type guide plate is provided with a contact 6, the circumference is provided with a retractable inclined tooth part 5, and the opposite end of the foot pedal 1 is in contact with the inclined tooth part.
The inclined tooth part 5 is of a telescopic structure, and can be structured as shown in fig. 4, the telescopic inclined tooth part comprises a straight section 5-1 and an inclined section 5-2, and the inclined tooth part 5 is connected with the disc type guide plate 4 through a first spring 7. The straight section 5-1 and the inclined section 5-2 can be arranged according to actual matching requirements. The running-board 1 is stepped on, and tooth portion is perk under the effect of running-board 1 one end, and the disc type baffle rotates according to the direction of drawing in the figure, and disc type baffle 4 can also set up rotatory constant head tank, sets up the ball in the constant head tank, fixes a position through the ball. When the pedal reaches the positioning groove and stops rotating, the pedal 1 is self-reset under the action of the second spring 8, one end of the pedal 1 contacts the inclined section 5-2 of the next inclined tooth part 5, the straight section 5-1 is pressed into the disc type guide plate 4 under the pressing action, and one end of the pedal 1 passes through the farthest point of the inclined tooth part 5 to the other side of the tooth part.
As a structure that can be realized, the disc-type guide plate 4 is electrically connected with a ground terminal 10, and a contact 6 provided on the disc-type guide plate 4 is used for connecting or disconnecting with a contact of a wire inlet end.
As another connection mode, the distance L1 between every two contact points 6 on the disc guide plate 4 is equal to the distance L2 between the incoming terminal contact point and the ground terminal contact point.
As a further improvement, a transparent cover plate 3 is further arranged above the insulating bottom plate 1, and the transparent cover plate 3 is matched with a shell of the switch circuit accommodating cavity 2-1 and connected with the shell through a sealing ring. Can be directly through threaded connection, directly install transparent apron on insulating bottom plate 1, it is transparent to set up to be convenient for the user to observe whether the contact is closed or the disconnection.
In order to improve the waterproof performance and ensure the normal use of the switch, the sealing ring can be a star-shaped sealing ring and is made of a silica gel material.
The transparent cover plate 3 can be made of plastic, specifically transparent plastic, PMMA, PC, PS or ABS. Polymethyl methacrylate (PMMA) is a popular name. The chemical name of the high molecular transparent material is polymethyl methacrylate, which is a high molecular compound polymerized by methyl methacrylate. Polycarbonate (abbreviated as PC) is a high molecular polymer containing carbonate groups in molecular chains, and PS is polystyrene. ABS (abbreviation of Acrylonitrile Butadiene Styrene) refers to an Acrylonitrile-Butadiene-Styrene copolymer, which is a thermoplastic high molecular structure material with high strength, good toughness and easy processing and molding, and is also called ABS resin.
The embodiment also provides a grounding operation device for switching on and off of the power transmission line, the connection mode is as shown in fig. 1, and the grounding operation device comprises the above-mentioned foot switch 100, the incoming line end of the foot switch 100 is connected with one of the phase lines of the power transmission line, and the grounding end is grounded or the grounding ends of the foot switches arranged on each phase are connected.
The specific connection mode that the grounding ends of the foot-operated switches arranged on each phase are connected is that in order to realize three-phase short circuit ungrounded operation, one foot-operated switch 100 is arranged on each phase line of a specific power transmission line, and three foot-operated switches 100 at the T position in the figure are connected in a three-phase mode. The three grounding ends of one foot-operated switch 100 can be directly connected, or the foot-operated switch 100 is further changed, two grounding ends and one wire inlet end are arranged, and the wire inlet end can be respectively connected with the grounding ends. One of the ground terminals is grounded, and the other ground terminal is connected with the ground terminals of the other foot-operated switches 100, so that the three-phase short circuit is realized without being grounded. The three-phase short circuit ungrounded operation is a state required in a line parameter test process, three different switch states are required to test different test data in the line parameter test process, and the three-phase short circuit ungrounded switch state is required in the positive sequence impedance test.
The specific foot-operated switch 100 that adopts to have insulation board 2 realizes the divide-shut brake, and each set of switch corresponds each phase line of circuit, and obvious disconnection point can be observed to pedal switch, takes insulating transparent plastic as the isolation measure of disconnection point, prevents personnel's misconnection, and the bottom plate has the earth connection, and the bottom plate earth connection can realize the divide-shut brake respectively with three sets of pedal switch. The power transmission line opening and closing grounding operation device has the functions of circuit three-phase grounding operation, three-phase short circuit non-grounding operation, single-item grounding operation and the like in the circuit parameter testing process, improves the working efficiency and realizes safety tests. Compare in hand-pulling type divide-shut brake device, it is very inconvenient that experimental insulating gloves operation of wearing, the mode of adopting the pedal is easier to operate, and insulating shoes are that the field operation of power worker must be dressed, so wear insulating shoes to go to close a floodgate and can improve work efficiency greatly, reduce experimental risk.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A foot-operated switch, characterized by: the self-reset type pedal is characterized by comprising an insulating bottom plate, wherein the insulating bottom plate comprises a switch circuit accommodating cavity and a flat plate area, the upper part of the flat plate area is connected with a self-reset type pedal through a rotating shaft, the switch circuit accommodating cavity is provided with a wire inlet end, a grounding end and a contact conducting plate which can be movably arranged, contacts of the wire inlet end and the grounding end are respectively arranged opposite to contacts on the contact conducting plate, and the contact plate is used for connecting the wire inlet end and the grounding end or disconnecting the wire inlet end and the grounding end when the self-reset type.
2. A foot-operated switch as defined in claim 1, further comprising: the switch circuit further comprises a power supply, a button switch and a coil which are connected in series, the contact conductive plate and the coil are arranged oppositely, the button switch is arranged in the flat plate area, and the self-resetting pedal moves downwards to press the button switch.
3. A foot-operated switch as defined in claim 1, further comprising: the contact conducting plate capable of being movably arranged is a disc type guide plate, a contact is arranged on the surface of the disc type guide plate, the periphery of the disc type guide plate is provided with a telescopic inclined tooth part, and the opposite end of the pedal is in contact with the inclined tooth part.
4. A foot-operated switch as set forth in claim 3, wherein: the telescopic inclined tooth part comprises a straight section and an inclined section, and the inclined tooth part is connected with the disc type guide plate through a first spring.
5. A foot-operated switch as set forth in claim 3, wherein: the disc type guide plate is electrically connected with the grounding end, and a contact arranged on the disc type guide plate is used for being connected with or disconnected from a contact of the wire inlet end.
6. A foot-operated switch as set forth in claim 3, wherein: the distance between every two contact points on the disc type guide plate is equal to the distance between the contact point at the wire inlet end and the contact point at the grounding end.
7. A foot-operated switch as defined in claim 1, further comprising: and a transparent cover plate is further arranged above the insulating bottom plate, and the transparent cover plate is matched with the shell of the switch circuit accommodating cavity and is connected with the switch circuit accommodating cavity through a sealing ring.
8. The foot-operated switch of claim 7, wherein: the sealing ring is a star-shaped sealing ring.
9. The foot-operated switch of claim 7, wherein: the transparent cover plate is made of plastic.
10. The utility model provides a transmission line divide-shut brake ground connection operating means which characterized by: the foot-operated switch comprises the foot-operated switch according to any one of claims 1 to 9, wherein the incoming line end of the foot-operated switch is connected with one phase line of the power transmission line, and the grounding end is grounded or the grounding ends of the foot-operated switches arranged on each phase are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408229.3U CN211206566U (en) | 2019-08-27 | 2019-08-27 | Foot-operated switch and transmission line divide-shut brake ground connection operating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408229.3U CN211206566U (en) | 2019-08-27 | 2019-08-27 | Foot-operated switch and transmission line divide-shut brake ground connection operating means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211206566U true CN211206566U (en) | 2020-08-07 |
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ID=71880865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921408229.3U Active CN211206566U (en) | 2019-08-27 | 2019-08-27 | Foot-operated switch and transmission line divide-shut brake ground connection operating means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211206566U (en) |
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2019
- 2019-08-27 CN CN201921408229.3U patent/CN211206566U/en active Active
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