CN110504564B - Take self-locking function's 400V earth connection device - Google Patents
Take self-locking function's 400V earth connection device Download PDFInfo
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- CN110504564B CN110504564B CN201910803023.9A CN201910803023A CN110504564B CN 110504564 B CN110504564 B CN 110504564B CN 201910803023 A CN201910803023 A CN 201910803023A CN 110504564 B CN110504564 B CN 110504564B
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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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
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Abstract
The embodiment of the invention discloses a 400V grounding wire device with a self-locking function, which comprises a wire end clamp and an insulating operating rod, wherein the wire end clamp comprises a clamp base, a connecting base and an upper wire clamping base which are distributed in a C shape from bottom to top, the insulating operating rod comprises a hollow outer barrel, an operating inner rod is arranged in the outer barrel in a penetrating manner, a vertically penetrating insertion hole is formed in the clamp base, the surface of the operating inner rod is smooth, the upper end of the operating inner rod penetrates through the insertion hole and is provided with a lower wire clamping base, a quick locking device is arranged between the operating inner rod and the clamp base and comprises a locking groove arranged on the operating inner rod and a locking sheet arranged on the inner wall of the insertion hole, the locking groove comprises a stop section, a gradual change section and a locking section which are sequentially connected, the stop section is of an arc groove-shaped structure, the gradual change section is of an arc groove-, the clamping operation can be realized more quickly, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of grounding wire devices, in particular to a 400V grounding wire device with a self-locking function.
Background
Before the maintenance of the power equipment, in order to protect the safety of field workers, a ground wire needs to be hung on the equipment to be maintained after the power failure of the equipment to be maintained. The ground line is a reliable safety measure for preventing sudden incoming calls at the working site, and simultaneously, residual charges of the disconnected part of the equipment prevent induced voltage possibly generated by power failure equipment.
The conventional detachable grounding wire is a spring clamp type wire clamp or a spiral compression type wire clamp.
1. Although the spring clamp type wire clamp is simple and convenient to operate, the clamping force is not enough, the impact of large short-circuit current cannot be borne, and potential safety hazards exist.
2. The spiral compression type wire clamp is low in operation speed and low in construction operation efficiency.
3. When the height of the hanging place exceeds the length of the mutual converging end of the cables, the hanging difficulty is obviously increased. The difficulty mainly lies in: the suspension of the ground wires needs to be carried out in a split-phase manner, and when an operator carries out the suspension of the first-phase ground wires, the other two phases are suspended or placed on the ground. Thus, when the height of the ground wire hanging place is too high, an operator needs to bear the weight of the whole wiring device to repeatedly go up and down the escalator for operation. The weight of the whole wiring device comprises the weight of the ground wire operating rod and the weight of the cable, and is influenced by factors such as hanging height and narrow space, so that the personnel can fall off easily and touch the lead easily in the operation process of the escalator.
Disclosure of Invention
The embodiment of the invention discloses a 400V grounding wire device with a self-locking function, which adopts a quick locking device, can realize clamping operation more quickly and improve the working efficiency, can realize locking of a wire clamping state by arranging a locking rod, and can improve the reliability of the wire clamping state so as to solve the problems that the operation speed of a spiral compression type wire clamp is slow, the construction operation efficiency is influenced, the clamping force of a spring clamp type wire clamp is insufficient, and the reliability of the wire clamping state is poor in the prior art.
The embodiment of the invention provides a 400V grounding wire device with a self-locking function, which comprises a wire end clamp and an insulating operating rod, wherein the wire end clamp comprises a clamp base, a connecting base and an upper wire clamping base which are distributed in a C shape from bottom to top;
the quick locking device comprises a locking groove and a locking piece, wherein the locking groove is formed in the inner operating rod, the locking piece is arranged on the inner wall of the insertion hole, the locking groove comprises a stop section, a gradual change section and a locking section which are sequentially connected, the stop section is of an arc groove-shaped structure, and the gradual change section is gradually towards the outer edge of the inner operating rod, which is close to the arc groove-shaped structure.
As a preferable aspect of the present invention, the locking piece has a bilaterally symmetric arc-shaped structure, and has the same diameter as the staying section, and the staying section is adapted to a half side of the locking piece.
As a preferable scheme of the present invention, two connection grooves are formed in an inner wall of the insertion hole, two ends of the locking piece are respectively fixed in the two connection grooves, the locking piece and the operation inner rod are integrally formed, and a middle portion of the locking piece protrudes toward an axis direction of the operation inner rod.
As a preferable scheme of the invention, the gradual change section is provided with a limiting bulge, and when the locking piece is tightly attached to the stay section, the limiting bulge pushes the locking piece in the stay section.
As a preferable scheme of the present invention, the operation inner rod is provided with a locking cavity, the inner wall of the insertion hole is provided with a locking groove, a locking rod is arranged in the locking cavity, and the front end of the locking rod extends out of the locking cavity and faces the locking groove.
As a preferable aspect of the present invention, the lock lever is disposed along a radial direction of the operation inner lever, and when the lock piece is located in the lock section, a front end of the lock lever is inserted into the lock groove and abuts against the lock piece in the lock section.
As a preferable scheme of the invention, a fixing plate is arranged in the locking cavity, the locking rod penetrates through the fixing plate, a locking plate is arranged at the tail end of the locking rod, and a return spring is sleeved outside the locking rod between the fixing plate and the locking plate.
As a preferable scheme of the invention, the locking plate is connected with a driven plate in a right-angled triangle shape, one right-angled surface of the driven plate is in a horizontal state, the other right-angled surface of the driven plate is in a vertical state, the inclined surface is inclined downwards, a pushing plate in a right-angled triangle shape corresponding to the driven plate is further arranged in the locking cavity, one right-angled surface of the pushing plate is in a horizontal state, the other right-angled surface of the pushing plate is in a vertical state, and the inclined surface is inclined upwards.
As a preferable scheme of the invention, a pushing cavity is axially arranged in the operation inner rod, the top of the pushing cavity is communicated with the locking cavity, a driving rod is arranged in the pushing cavity, and the top of the driving rod extends into the locking cavity and is connected with the pushing plate.
As a preferable scheme of the present invention, an operation inner rod extends from the bottom of the driving rod, and a buckle is disposed between the lower end of the driving rod and the bottom of the operation inner rod.
According to the technical scheme, the embodiment of the invention has the following advantages:
according to the invention, the quick locking device is arranged, when a wire is clamped, the wire can be clamped only by pushing the operation inner rod upwards and then rotating the operation inner rod, compared with a spiral wire clamp in the prior art, the clamping operation can be realized more quickly, and the working efficiency is improved.
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 inventive exercise.
FIG. 1 is a schematic view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a wire end clamp in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a quick locking device according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a lock chamber in an embodiment of the present invention.
In the figure:
1-a wire end clamp; 2-an insulated operating rod; 3-a quick locking device;
101-a wire clamp base; 102-a connecting socket; 103-upper wire clamping seat; 104-a jack; 105-lower wire holder; 106-connecting groove; 107-locking grooves;
201-outer cylinder; 202-operating the inner rod; 203-a locking cavity; 204-a locking lever; 205-a fixed plate; 206-a locking plate; 207-a return spring; 208-a driven plate; 209-push plate; 210-a push chamber; 211-a drive rod;
301-locking groove; 301 a-a dwell period; 301 b-transition; 301c — a locking section; 302-a locking tab; 303-limiting bulge.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the invention provides a 400V ground wire device with a self-locking function, which comprises a wire end clamp 1 and an insulating operating rod 2, wherein the wire end clamp 1 comprises a clamp base 101, a connecting base 102 and an upper clamp base 103 which are distributed in a C shape from bottom to top, the insulating operating rod 2 comprises a hollow outer cylinder 201, an operating inner rod 202 penetrates through the outer cylinder 201, a jack 104 which penetrates through the wire clamp base 101 from top to bottom and a lower clamp base 105 are arranged on the wire clamp base 101, the surface of the operating inner rod 202 is smooth, the upper end of the operating inner rod passes through the jack 104, a quick locking device 3 is arranged between the operating inner rod 202 and the clamp base 101, the quick locking device 3 comprises a locking groove 301 arranged on the operating inner rod 202 and a locking sheet 302 arranged on the inner wall of the jack 104, the locking groove 301 comprises a stopping section 301a, a gradual changing section 301b and a locking section 301C which are, the transition section 301b has a circular arc groove-like structure gradually approaching the outer edge of the inside lever 202.
In this embodiment, the length of the operation inner rod 202 exceeds the length of the outer cylinder 201, the lower end of the operation inner rod 202 also extends out of the outer cylinder 201, the operation inner rod 202 can be pulled up and down and rotated left and right in the outer cylinder 201, when the operation inner rod 202 slides up and down, the position of the lower wire clamping seat 105 is changed, the distance between the upper wire clamping seat 103 and the lower wire clamping seat 105 is further adjusted, and when a wire is positioned between the upper wire clamping seat 103 and the lower wire clamping seat 105, the wire can be clamped by pushing up the operation inner rod 202.
As shown in fig. 3, in the present embodiment, the height of the staying section 301a is the same as the thickness of the locking piece 302, when the locking piece 302 is located in the staying section 301a, there is no pressure between the locking piece 302 and the locking groove 301, the operation inner rod 202 can slide in the vertical direction, and the limit distance of the sliding is the same as the height of the locking groove 301 in the vertical direction; one end of the gradual change section 301b is tangent to the tail end of the stay section 301a, and the other end of the gradual change section 301b gradually approaches to the outer edge of the operation inner rod 202, so that the height of the gradual change section 301b gradually decreases, when the locking piece 302 is located in the gradual change section 301b, pressure exists between the locking piece 302 and the locking groove 301, the farther the locking piece 302 is away from the stay section 301a, the greater the pressure between the locking piece 302 and the locking groove 301 is, and the more difficult the operation inner rod 202 slides in the vertical direction; one end of the locking section 301c is tangent to the end of the gradual change section 301b, and the length of the locking section 301c is the same as that of the locking piece 302, and when the locking piece 302 is located in the locking section 301c, the pressure between the locking piece 302 and the locking groove 301 is the largest, and the operation inner rod 202 cannot slide in the vertical direction any more.
This embodiment is through setting up quick locking device 3, and after pushing up operation interior pole 202 and making the wire by tight, rotate operation interior pole 202, make it rotate to locking section 301c by the section of stopping 301a, through the locking effect of quick locking device 3, realize the fixed of trapping clamp 105 position on vertical direction down to make trapping clamp 103 and trapping clamp 105 down keep in the state of pressing from both sides tight wire, realize the continuation of wire and press from both sides tightly.
In this embodiment, the clamping process of the wire is: the outer cylinder 201 is held, the operation inner rod 202 is pushed upwards to enable the lead to be erected between the lower lead clamping seat 105 and the upper lead clamping seat 103, then the operation inner rod 202 is rotated to enable the operation inner rod to rotate from the stopping section 301a to the locking section 301c, and therefore clamping of the lead can be achieved. The clamping operation of above-mentioned wire is very simple and convenient, compares in the spiral fastener among the prior art, can realize clamping operation sooner, promotes work efficiency.
As shown in fig. 3, in this embodiment, the locking piece 302 has a bilaterally symmetric arc-shaped structure and has the same diameter as the stay section 301a, the inner wall of the insertion hole 104 is provided with two connection grooves 106, both ends of the locking piece 302 are respectively fixed in the two connection grooves 106, the locking piece 302 and the operation inner rod 202 are integrally formed, the middle of the locking piece 302 protrudes toward the axis direction of the operation inner rod 202, the stay section 301a is matched with the half side of the locking piece 302, the gradual change section 301b is provided with a limiting protrusion 303, and when the locking piece 302 is tightly attached to the stay section 301a, the limiting protrusion 303 pushes the locking piece 302 to the stay section 301 a. Therefore, the locking piece 302 is restrained within the stay section 301a without an external force, so that the connection angle between the operation inner lever 202 and the insertion hole 104 is fixed without an external force.
As shown in fig. 3 and 4, in the present embodiment, the operation inner rod 202 has a locking cavity 203, the inner wall of the insertion hole 104 is provided with a locking groove 107, a locking rod 204 is disposed in the locking cavity 203, the front end of the locking rod 204 extends out of the locking cavity 203 and faces the locking groove 107, the locking rod 204 is disposed along the radial direction of the operation inner rod 202, when the locking piece 302 is located in the locking section 301c, the front end of the locking rod 204 is inserted into the locking groove 107 and presses the locking piece 302 against the locking section 301c, therefore, in this state, the locking piece 302 cannot move, the operation inner rod 202 cannot rotate, the vertical position of the lower wire clamping seat 105 and the distance between the lower wire clamping seat 105 and the upper wire clamping seat 103 are kept fixed, the wire clamping state is locked, and the wire is continuously clamped, and the clamping state is very reliable.
As shown in fig. 3 and 4, in this embodiment, a fixing plate 205 is disposed in the locking cavity 203, the locking rod 204 passes through the fixing plate 205, a locking plate 206 is disposed at a distal end of the locking rod 204, a return spring 207 is sleeved outside the locking rod 204 between the fixing plate 205 and the locking plate 206, the locking plate 206 is connected to a driven plate 208 in a right-angled triangle shape, one right-angled surface of the driven plate 208 is in a horizontal state, the other right-angled surface of the driven plate 208 is in a vertical state, the inclined surface is inclined downward, a pushing plate 209 in a right-angled triangle shape corresponding to the driven plate 208 is further disposed in the locking cavity 203, one right-angled surface of the pushing plate 209 is in a horizontal state, the other right-angled surface of the pushing plate is in a vertical state, the inclined surface is inclined upward, a pushing cavity 210 is axially disposed in the operation inner rod 202, a top of, the top of the driving rod 211 extends into the locking cavity 203 and is connected with the pushing plate 209, the bottom of the driving rod 211 extends out of the operation inner rod 202, and a buckle is arranged between the lower end of the driving rod 211 and the bottom of the operation inner rod 202.
In this embodiment, the driving rod 211 is pushed upward to move the pushing plate 209 upward, the vertical driving force is converted into the horizontal driving force by the interaction between the inclined surface of the pushing plate 209 and the inclined surface of the driven plate 208, so that the locking rod 204 extends out and is inserted into the locking groove 107, and after the driving rod 211 moves downward, the locking rod 204 loses the horizontal driving force and returns to the original position under the pushing action of the return spring 207, and the locking rod 204 retracts into the locking cavity 203 to release the locking of the clamping state, thereby facilitating the release of the wire.
While the 400V grounding wire device with self-locking function provided by the present invention has been described in detail, for those skilled in the art, according to the idea of the embodiment of the present invention, the specific implementation and the application scope may be changed, and in summary, the content of the present description should not be construed as limiting the present invention.
Claims (9)
1. A400V grounding wire device with a self-locking function comprises a wire end clamp (1) and an insulating operating rod (2), and is characterized in that the wire end clamp (1) comprises a clamp base (101), a connecting base (102) and an upper wire clamping base (103) which are distributed in a C shape from bottom to top, the insulating operating rod (2) comprises a hollow outer barrel (201), an inner operating rod (202) penetrates through the outer barrel (201), a jack (104) penetrating through the clamp base (101) up and down is arranged on the cable clamp base, the surface of the inner operating rod (202) is smooth, and the upper end of the inner operating rod penetrates through the jack (104) and is provided with a lower wire clamping base (105);
interior pole of operation (202) with be provided with quick locking device (3) between fastener base (101), quick locking device (3) are including setting up locking groove (301) on interior pole of operation (202) are in with setting up locking piece (302) on jack (104) inner wall, locking groove (301) are including consecutive stay section (301a), gradual change section (301b) and locking section (301c), stay section (301a) are circular arc groove-shaped structure, gradual change section (301b) are gradually to the outer circular arc groove-shaped structure that is close to of edge of interior pole of operation (202).
2. The 400V grounding wire device with the self-locking function according to claim 1, wherein the locking piece (302) is of a bilaterally symmetrical arc-shaped structure and has the same diameter as the staying section (301a), and the staying section (301a) is matched with the half side of the locking piece (302).
3. The 400V grounding wire device with the self-locking function according to claim 1, wherein a limiting protrusion (303) is arranged on the gradual transition section (301b), and when the locking piece (302) is tightly attached to the stay section (301a), the limiting protrusion (303) pushes the locking piece (302) against the stay section (301 a).
4. The 400V grounding wire device with the self-locking function according to claim 1, wherein a locking cavity (203) is formed in the operation inner rod (202), a locking groove (107) is formed in the inner wall of the insertion hole (104), a locking rod (204) is arranged in the locking cavity (203), and the front end of the locking rod (204) extends out of the locking cavity (203) and faces the locking groove (107).
5. The 400V grounding wire device with the self-locking function as claimed in claim 4, wherein the locking rod (204) is arranged along the radial direction of the operating inner rod (202), and when the locking piece (302) is located in the locking section (301c), the front end of the locking rod (204) is inserted into the locking groove (107) and presses the locking piece (302) against the locking section (301 c).
6. The 400V grounding wire device with the self-locking function according to claim 5, wherein a fixing plate (205) is arranged in the locking cavity (203), the locking rod (204) penetrates through the fixing plate (205), a locking plate (206) is arranged at the tail end of the locking rod (204), and a return spring (207) is sleeved outside the locking rod (204) between the fixing plate (205) and the locking plate (206).
7. The 400V grounding wire device with the self-locking function according to claim 6, wherein the locking plate (206) is connected with a driven plate (208) in a right-angle triangle shape, one right-angle surface of the driven plate (208) is in a horizontal state, the other right-angle surface of the driven plate is in a vertical state, the inclined surface of the driven plate is inclined downwards, a pushing plate (209) in a right-angle triangle shape corresponding to the driven plate (208) is further arranged in the locking cavity (203), one right-angle surface of the pushing plate (209) is in a horizontal state, the other right-angle surface of the pushing plate is in a vertical state, and the inclined surface of the pushing plate is inclined upwards.
8. The 400V grounding wire device with the self-locking function according to claim 7, wherein a pushing cavity (210) is axially arranged inside the operating inner rod (202), the top of the pushing cavity (210) is communicated with the locking cavity (203), a driving rod (211) is arranged inside the pushing cavity (210), and the top of the driving rod (211) extends into the locking cavity (203) and is connected with the pushing plate (209).
9. The 400V grounding wire device with the self-locking function as claimed in claim 8, wherein an operation inner rod (202) extends out of the bottom of the driving rod (211), and a buckle is arranged between the lower end of the driving rod (211) and the bottom of the operation inner rod (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803023.9A CN110504564B (en) | 2019-08-28 | 2019-08-28 | Take self-locking function's 400V earth connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803023.9A CN110504564B (en) | 2019-08-28 | 2019-08-28 | Take self-locking function's 400V earth connection device |
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| Publication Number | Publication Date |
|---|---|
| CN110504564A CN110504564A (en) | 2019-11-26 |
| CN110504564B true CN110504564B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910803023.9A Active CN110504564B (en) | 2019-08-28 | 2019-08-28 | Take self-locking function's 400V earth connection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113764906B (en) * | 2021-10-08 | 2023-12-22 | 广东电网有限责任公司东莞供电局 | Insulating earthing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205376812U (en) * | 2016-03-04 | 2016-07-06 | 唐晚成 | High voltage electricity joins in marriage electrified live wire device of taking of different current potential of net |
| CN205565032U (en) * | 2016-03-28 | 2016-09-07 | 国网天津市电力公司 | From novel dropproof earth connection of locking -type |
| EP3453076B1 (en) * | 2016-05-02 | 2022-02-16 | Quanta Associates, L.P. | Locking grounding clamp |
| CN106025609B (en) * | 2016-05-27 | 2018-03-30 | 龚卫兵 | Anticreep insulation puncture line clamping |
| JP2019139857A (en) * | 2018-02-06 | 2019-08-22 | 中国電力株式会社 | Drop wire connector |
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