CN114034891A - Safety test clamp for relay protection loop terminal - Google Patents
Safety test clamp for relay protection loop terminal Download PDFInfo
- Publication number
- CN114034891A CN114034891A CN202111345455.3A CN202111345455A CN114034891A CN 114034891 A CN114034891 A CN 114034891A CN 202111345455 A CN202111345455 A CN 202111345455A CN 114034891 A CN114034891 A CN 114034891A
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- CN
- China
- Prior art keywords
- handle
- clamping
- safety test
- relay protection
- sleeve
- 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
Links
- 238000011076 safety test Methods 0.000 title claims abstract description 22
- 239000011810 insulating material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000013459 approach Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
-
- 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
Abstract
The utility model provides a relay protection return circuit safety test presss from both sides for terminal relates to electric power tech field, including clamping part, first handle, second handle, arm lock and connecting piece, wherein: the clamping part is arranged at one end of the first handle and one end of the second handle, the clamping arms are respectively arranged at one side of the first handle and one side of the second handle, the first handle and the second handle are connected through the connecting piece by the clamping arms, through holes are respectively formed in the other ends of the first handle and the second handle, a fastener is arranged on one through hole, the fastener is matched and fixed with the other through hole, the terminal screw is clamped by the clamping part through the clamping part with adjustable size and tightness, and the first handle and the second handle are fixed through the fastener, so that the problems of open circuit of a current loop, short circuit of a voltage loop, misoperation of equipment and the like caused by the fact that the terminal screw falls off in the process of testing wire clamping are avoided.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a safety test clamp for a relay protection loop terminal.
Background
At present, in order to prevent the occurrence of personal casualties caused by the risk of opening a circuit of a current loop, secondary current loop terminals are mostly OT terminals, the OT terminals are reliable and safe, but because of the compact structure of the OT terminals, the OT terminals are not easy to fix when the wire is clamped in a test, and the OT terminals are easy to fall off in the process of adding the wire in the test, so that the risk of personal casualties caused by the open circuit of the current loop is increased, and accidents such as protection misoperation, direct current grounding and the like are caused by the fact that a nearby electrified loop is touched by mistake easily.
In order to ensure uninterrupted operation, a current loop needs to be short-circuited and a dosage test is carried out on a current loop terminal, the currently used jointing clamp cannot be in contact with a terminal screw on site in a complete fit manner, the conditions of loosening and mistaken collision are easy to occur in the working process, and accidents of protection misoperation and direct current grounding are likely to occur.
Disclosure of Invention
In view of the above technical problems, the following invention is proposed in the prior art, in which a wire connecting clip commonly used in the prior art cannot be brought into contact with a terminal screw on site in a completely matched manner, is prone to loosening and mistaken collision during working, and is also likely to cause accidents of protection against misoperation and direct current grounding:
the utility model provides a relay protection return circuit safety test presss from both sides for terminal, includes clamping part, first handle, second handle, fastener, arm lock and connecting piece, wherein:
the clamping part is arranged at one end of the first handle and one end of the second handle, the clamping arms are respectively arranged at one side of the first handle and one side of the second handle, the first handle and the second handle are connected through the connecting piece by the clamping arms, through holes are respectively formed in the other ends of the first handle and the second handle, a fastening piece is arranged on one through hole, and the fastening piece is matched and fixed with the other through hole.
Furthermore, the other ends of the first handle and the second handle are respectively provided with a first sleeve and a second sleeve, the first sleeve is provided with a through hole, and the fastener is movably connected with the first sleeve through the through hole in the first sleeve.
Furthermore, a hole matched with the fastener is formed in the second sleeve.
Furthermore, the clamping part is a semicircular hoop with an arc-shaped gap, the clamping part comprises a first clamping part and a second clamping part, and the arc-shaped gap of the first clamping part and the arc-shaped gap of the second clamping part form a circular through hole.
Further, the other ends of the first handle and the second handle are provided with insulating sleeves.
Further, the clamping arms comprise a first clamping arm and a second clamping arm, and the connecting piece penetrates through the inward extending positions of the first clamping arm and the second clamping arm respectively.
Furthermore, the connecting piece is torsion spring, the connecting piece includes knob portion, first supporting part and second supporting part, first arm lock and second arm lock are passed to knob portion, first supporting part with the second supporting part support respectively in first handle with the inboard of second handle.
Furthermore, sawteeth are further arranged on the inner sides of the first handle and the second handle, and the sawteeth of the first handle and the second handle are symmetrical.
Further, the first handle and the second handle are made of insulating materials.
Further, the clamping part is made of insulating materials.
According to the safety test clamp for the relay protection loop terminal, disclosed by the invention, the clamping part with adjustable size and tightness is used for clamping the terminal screw, and the first handle and the second handle are fixed through the fastening piece, so that the problems of open circuit of a current loop, short circuit of a voltage loop, misoperation of equipment and the like caused by falling off of the terminal screw in the process of wire clamping test are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a safety test clip for a relay protection circuit terminal in a closed state according to an embodiment of the present application;
fig. 2 is a safety test clip for a relay protection circuit terminal in an open state according to an embodiment of the present disclosure;
FIG. 3 is a side view of a safety test clip for a relay protection circuit terminal according to an embodiment of the present disclosure;
fig. 4 is a safety test clip for a relay protection circuit terminal in a closed state according to another embodiment of the present application;
fig. 5 is a safety test clip for relay protection circuit terminals in an open state according to another embodiment of the present application.
The reference numerals are explained below:
1-a clamping part; 110-a first clamping portion; 120-a second grip; 210-a first clamp arm; 220-a second clamp arm; 310-a first handle; 320-a second handle; 4-a connector; 5-an insulating sleeve; 510-a first sleeve; 520-a second sleeve; 6-fastening piece.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
A safety test clamp for relay protection loop terminal, as shown in fig. 1, comprises a clamping portion 1, a first handle 310, a second handle 320, a fastener 6, a clamping arm and a connecting piece 4, wherein:
the clamping part 1 is arranged at one end of the first handle 310 and the second handle 320, the clamping arms are respectively arranged at one side of the first handle 310 and one side of the second handle 320, the first handle 310 and the second handle 320 are connected through the connecting piece 4, the other ends of the first handle 310 and the second handle 320 are respectively provided with a through hole, one of the through holes is provided with a fastening piece 6, and the fastening piece 6 is matched and fixed with the other through hole.
In the embodiment of the present application, the first handle 310 and the second handle 320 are moved inward or outward manually by a tool or a person, so that the first handle 310 and the second handle 320 cooperate to drive the clamping portion 1 to close or open, as shown in fig. 1 and fig. 2, when the clamping portion 1 clamps the terminal screw, the fastening member 6 is rotated to make the fastening member 6 approach to the through hole on the second handle 320, and when the fastening member 6 fixes the first handle 310 and the second handle 320, the fastening member 6 is tightened to make the first handle 310 and the second handle 320 no longer move, so that the first clamping portion 110 and the second clamping portion 120 can be fixed with the terminal screw, and the terminal screw is prevented from falling off; in the process, the first clamping arm 210 and the second clamping arm 220 play a role of buffering, so that the force required for moving the first handle 310 and the second handle 320 inwards or outwards is smaller.
Further, in a preferred embodiment of the present application, as shown in fig. 1 and 2, the other ends of the first handle 310 and the second handle 320 are respectively provided with a first sleeve 510 and a second sleeve 520, the first sleeve 510 is provided with a through hole, and the fastening member 6 is movably connected to the first sleeve 510 through the through hole of the first sleeve 510.
In this embodiment, the first sleeve 510 and the second sleeve 520 are both made of insulating materials, a through hole is provided on the first sleeve 510, the fastener 6 is movably connected with the first sleeve 510 through the through hole, the second sleeve 520 is provided with a hole matched with the fastener 6, the fastener 6 can approach the hole on the second sleeve 520 through a knob, in this embodiment, the fastener 6 is a screw, and the hole on the second sleeve 520 is provided with a nut matched with the fastener 6.
Further, in a preferred embodiment of the present application, the second sleeve 520 is provided with a hole matching the fastener 6.
Further, in a preferred embodiment of the present application, as shown in fig. 3, the clamping portion 1 is a semicircular hoop having an arc-shaped notch, the clamping portion 1 includes a first clamping portion 110 and a second clamping portion 120, and the arc-shaped notch of the first clamping portion 110 and the arc-shaped notch of the second clamping portion 120 form a circular through hole.
The arc-shaped notch of the clamping portion 1 can be set to different sizes according to different types of screws, so as to adapt to a terminal screw, and the terminal screw can be clamped by the clamping portion 1, as shown in fig. 4 and 5, the first clamping arm 210 and the second clamping arm 220 can drive the clamping portion 1 to close or open by swinging the first handle 310 and the second handle 320, when the clamping portion 1 is open, the first clamping portion 110 and the second clamping portion are respectively located below the terminal screw, and then the clamping portion 1 is closed by the first clamping arm 210 and the second clamping arm 220, so as to clamp the screw.
Further, in a preferred embodiment of the present application, the other ends of the first handle 310 and the second handle 320 are provided with an insulating sleeve 5.
By sleeving the insulating sleeve 5 on one end of the first handle 310 and the second handle 320, insulating materials can be saved, and the insulating sleeve 5 can be used repeatedly and used in multiple places, so that the cost can be saved.
Further, in a preferred embodiment of the present application, the clamping portion 1 is made of an insulating material.
Further, in a preferred embodiment of the present application, the first handle 310 and the second handle 320 are made of an insulating material.
The first handle 310, the second handle 320 and the clamping part 1 are made of insulating materials, so that the risks of short circuit and open circuit of a secondary circuit can be avoided, the personal safety of field workers is guaranteed, and accidents of misoperation and refusal of equipment can be avoided.
Further, in a preferred embodiment of the present application, the clamping arms include a first clamping arm 210 and a second clamping arm 220, and the connecting member 4 passes through the inward extensions of the first clamping arm 210 and the second clamping arm 220, respectively.
The first clamping arm 210 and the second clamping arm 220 are both smooth arc structures, and the first clamping arm 210 and the second clamping arm 220 are larger than the clamping part 1, so that the force generated by the first handle 310 and the second handle 320 can be reduced, and the clamping part 1 can be opened more easily.
Further, in a preferred embodiment of the present application, the connecting member 4 is a torsion spring, and the connecting member 4 includes a knob portion, a first supporting portion and a second supporting portion, the knob portion passes through the first clamping arm 210 and the second clamping arm 220, and the first supporting portion and the second supporting portion are respectively supported at inner sides of the first handle 310 and the second handle 320.
In this application embodiment, connecting piece 4 is torsion spring, and torsion spring can divide into turn-knob portion, first supporting part and second supporting part, turn-knob portion sets up the central point of first arm lock 210 and second arm lock 220 can make first arm lock 210 and second arm lock 220 atress balanced.
Further, in a preferred embodiment of the present application, the first handle 310 and the second handle 320 are further provided with saw teeth on the inner sides thereof, and the saw teeth of the first handle 310 and the second handle 320 are symmetrical.
In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "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; may be mechanically coupled, may be electrically coupled or may be in communication with each other; 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.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (10)
1. The utility model provides a relay protection return circuit safety test presss from both sides for terminal which characterized in that, includes clamping part, first handle, second handle, fastener, arm lock and connecting piece, wherein:
the clamping part is arranged at one end of the first handle and one end of the second handle, the clamping arms are respectively arranged at one side of the first handle and one side of the second handle, the first handle and the second handle are connected through the connecting piece by the clamping arms, through holes are respectively formed in the other ends of the first handle and the second handle, a fastening piece is arranged on one through hole, and the fastening piece is matched and fixed with the other through hole.
2. The safety test clamp for the relay protection circuit terminal as claimed in claim 1, wherein the first handle and the second handle are respectively provided at the other end thereof with a first sleeve and a second sleeve, the first sleeve is provided with a through hole, and the fastening member is movably connected with the first sleeve through the through hole of the first sleeve.
3. The safety test clip for relay protection circuit terminal as claimed in claim 2, wherein the second sleeve has a hole matching with the fastening member.
4. The safety test clamp for the relay protection circuit terminal as claimed in claim 1, wherein the clamping portion is a semicircular hoop with an arc-shaped notch, the clamping portion comprises a first clamping portion and a second clamping portion, and the arc-shaped notch of the first clamping portion and the arc-shaped notch of the second clamping portion form a circular through hole.
5. The safety test clamp for the relay protection circuit terminal as claimed in claim 1, wherein the other ends of the first handle and the second handle are provided with an insulating sleeve.
6. The safety test clip of claim 1, wherein the clip arms comprise a first clip arm and a second clip arm, and the connecting member passes through the inward extensions of the first clip arm and the second clip arm, respectively.
7. The safety test clamp for the relay protection circuit terminal as claimed in claim 1, wherein the connecting member is a torsion spring, the connecting member includes a knob portion, a first supporting portion and a second supporting portion, the knob portion passes through the first and second clamping arms, and the first and second supporting portions are respectively supported at inner sides of the first and second handles.
8. The safety test clamp for the relay protection circuit terminal as claimed in claim 1, wherein the first handle and the second handle are further provided with saw teeth at inner sides thereof, and the saw teeth of the first handle and the second handle are symmetrical.
9. The safety test clamp for the relay protection circuit terminal as claimed in claim 1, wherein the first handle and the second handle are made of insulating material.
10. The safety test clip for relay protection circuit terminal as claimed in claim 1 or 4, wherein the clip portion is made of insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345455.3A CN114034891A (en) | 2021-11-15 | 2021-11-15 | Safety test clamp for relay protection loop terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345455.3A CN114034891A (en) | 2021-11-15 | 2021-11-15 | Safety test clamp for relay protection loop terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114034891A true CN114034891A (en) | 2022-02-11 |
Family
ID=80144302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111345455.3A Pending CN114034891A (en) | 2021-11-15 | 2021-11-15 | Safety test clamp for relay protection loop terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114034891A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889809A (en) * | 2021-10-25 | 2022-01-04 | 广西电网有限责任公司柳州供电局 | Crocodile clip and test wire clip with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882027A (en) * | 2012-07-31 | 2013-01-16 | 辽宁省电力有限公司鞍山供电公司 | Temporary earthing clamp device |
| CN203688596U (en) * | 2013-12-13 | 2014-07-02 | 深圳供电局有限公司 | Test clamp for relay protection equipment |
| CN206516767U (en) * | 2017-03-17 | 2017-09-22 | 国网浙江省电力公司杭州供电公司 | A kind of multipurpose ground connection pincers |
| CN208873900U (en) * | 2018-09-17 | 2019-05-17 | 宁波汇通机械联接件有限公司 | A kind of battery connector of quick assembling |
-
2021
- 2021-11-15 CN CN202111345455.3A patent/CN114034891A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882027A (en) * | 2012-07-31 | 2013-01-16 | 辽宁省电力有限公司鞍山供电公司 | Temporary earthing clamp device |
| CN203688596U (en) * | 2013-12-13 | 2014-07-02 | 深圳供电局有限公司 | Test clamp for relay protection equipment |
| CN206516767U (en) * | 2017-03-17 | 2017-09-22 | 国网浙江省电力公司杭州供电公司 | A kind of multipurpose ground connection pincers |
| CN208873900U (en) * | 2018-09-17 | 2019-05-17 | 宁波汇通机械联接件有限公司 | A kind of battery connector of quick assembling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889809A (en) * | 2021-10-25 | 2022-01-04 | 广西电网有限责任公司柳州供电局 | Crocodile clip and test wire clip with same |
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