CN114171939A - Pre-stretched elastic type rotary grounding wire and use method thereof - Google Patents
Pre-stretched elastic type rotary grounding wire and use method thereof Download PDFInfo
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- CN114171939A CN114171939A CN202111461901.7A CN202111461901A CN114171939A CN 114171939 A CN114171939 A CN 114171939A CN 202111461901 A CN202111461901 A CN 202111461901A CN 114171939 A CN114171939 A CN 114171939A
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
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Abstract
The invention discloses a prestretched elastic rotary grounding wire, which comprises: a wire; a wire clamp; an operating lever; lower biting tongue; the thread in the adjusting screw hole is partially dug, the projection of the thread in the adjusting screw hole on a plane vertical to the central axis of the adjusting screw hole is an arc, A is a point in the middle of the adjusting screw, the thread from the point A to the upper end of the adjusting screw is complementary with the arc, so that the thread at the upper end of the adjusting screw and the arc can form a circular ring shape, or the thread at the upper end of the adjusting screw is smaller than the arc complementary with the arc, the thread completely matched with the adjusting screw hole is arranged from the point A to the lower end of the adjusting screw, and the distance from the point A to the upper end of the adjusting screw is smaller than the distance from the upper biting tongue to the connecting arm of the wire clamp. The problem that the existing grounding wire can be quickly installed under the condition that good clamping is carried out on different thick and thin wires and is low in cost and not prone to damage due to the fact that the existing grounding wire clamping device is not available in the prior art is solved.
Description
Technical Field
The invention relates to a prestretched elastic force type rotating grounding wire and a using method thereof, belonging to the technical field of grounding wires.
Background
In the power industry, a power grid structure mainly comprises a power transmission line, a power distribution line and a transformer substation, electric energy is transmitted by power transmission and transformation and distribution equipment in production and life, operation and maintenance of the power equipment become important components of work of power workers, and the power transmission and transformation and distribution equipment has equipment faults caused by external force damage, natural environment disasters, overload operation, equipment service aging, poor installation process and the like in operation or power failure maintenance which is carried out according to time. In order to ensure the safety of operators, technical measures for ensuring the safety are taken, namely, grounding wires are arranged on all sides of possible incoming calls of all or part of electrical equipment with power failure, namely, the grounded grounding wires are manually connected to the electrical equipment, the grounding wires have the function of enabling a working place to be in the protection of 'ground potential', and meanwhile, the damage of residual charges and induced charges to human bodies can be prevented; when power is transmitted by mistake, the protection can be operated to cut off the power supply quickly, and dangerous voltage and electric arc generated by accidental call can be prevented.
The traditional grounding wire mainly comprises an insulating operating rod, a wire clamp, a confluence clamp, a short circuit wire, a grounding probe and the like. Wherein the wire presss from both sides the nut that passes through the wire clamp with the action bars screw rod and is connected, press from both sides the wire with the wire when installation wire end and block the wire, handheld action bars makes it keep vertical direction and manual rotatory fastening, adjusting screw length is generally 110 ~ 140mm for simple to operate, every wire clamp fastening of work at every turn, it is about 80 ~ 100mm to need adjust the stroke, 25 rings of action bars, and when the operation on the shaft tower, three quarters of circles can only be rotated in every operation, the rotatory 60 rings of action bars of every group earth connection installation need. Therefore, the operation time is long, a large amount of physical strength of operators is consumed, the operation risk is increased, and the working efficiency is seriously influenced. In order to solve the problem, the applicant also tries to change a wire clamp into an elastic clamp, the elastic clamp clamps the wires, the clamping force is constant, the clamping degrees of the wires with different thicknesses are different, the thick wires are better clamped, the thin wires are looser clamped, in addition, a set of mechanism for controlling the opening and closing of the elastic clamp is needed to be designed for controlling the opening and closing of the elastic clamp, the complexity of the device is increased by the mechanism, the cost is increased, and the device is more complex, so that the whole device is more easily damaged.
Therefore, the prior art lacks a grounding wire which can be quickly installed under the condition of ensuring good clamping on wires with different thicknesses and is lower in cost and not easy to damage.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a prestretched elastic force type rotating grounding wire and a using method thereof, which overcome the defects of the prior art.
The technical scheme of the invention is as follows: a pre-tensioned spring-type rotary earth wire comprising:
one end of the lead is electrically connected with the lead clamp;
the connecting arm at the lower part of the wire clamp is provided with an adjusting screw hole;
the upper end of the operating rod is fixedly connected with an adjusting screw, the adjusting screw is matched with the adjusting screw hole, and the operating rod is matched with the adjusting screw hole through the adjusting screw and is connected with the wire clamp;
the upper part of the lower biting tongue is an arc surface with the same inner diameter as the upper biting tongue of the wire clamp, and the lower part of the lower biting tongue is rotationally connected with the upper end of the adjusting screw rod so that the lower biting tongue can rotate around the central axis of the adjusting screw rod;
the thread in the adjusting screw hole is partially dug, the projection of the thread in the adjusting screw hole on a plane vertical to the central axis of the adjusting screw hole is an arc, A is a point in the middle of the adjusting screw, the thread from the point A to the upper end of the adjusting screw is complementary with the arc, so that the thread at the upper end of the adjusting screw and the arc can form a circular ring shape, or the thread at the upper end of the adjusting screw is smaller than the arc complementary with the arc, the thread completely matched with the adjusting screw hole is arranged from the point A to the lower end of the adjusting screw, and the distance from the point A to the upper end of the adjusting screw is smaller than the distance from the upper biting tongue to the connecting arm of the wire clamp.
Further, still include:
the lower end of the connecting rod is fixedly connected to the upper end of the adjusting screw rod, the connecting rod is coaxial with the adjusting screw rod, the upper end of the connecting rod is fixedly connected with a limiting head, the limiting head is a cylinder body with a diameter larger than that of the connecting rod, and the limiting head is coaxial with the connecting rod;
the connecting hole is of a 2-level step type, the diameter of the step at the upper part is larger than that of the step at the lower part, the diameter of the step at the lower part is matched with that of the connecting rod, the diameter of the step at the upper part is matched with that of the limiting head, and the length of the step at the lower part is matched with that of the connecting rod;
wherein, the adjusting screw is matched with the lower step of the connecting hole through the limiting head, so that the lower biting tongue is limited on the adjusting screw in the up-down direction.
Further, still include:
a spring disposed between the wire clamp connecting arm and the lower bite tongue.
Furthermore, the projection circular arc of the screw thread in the adjusting screw hole on the plane perpendicular to the central axis of the adjusting screw hole comprises 2 sections, and the 2 sections of circular arcs are symmetrically distributed by taking the center of the adjusting screw hole as the center.
Furthermore, the side surface of the lower tongue close to the vertical arm of the wire clamp is a first sliding groove matched with the vertical arm of the operating rod, and the first sliding groove is just attached to the vertical arm of the operating rod when the lower tongue is installed on the adjusting screw rod.
Further, the end of the upper tongue of the wire clamp is vertically extended downwards.
Furthermore, a second sliding groove is arranged on the side surface of the lower tongue close to the end part of the upper tongue of the wire clamp, the second sliding groove is matched with the extending part of the end part of the upper tongue of the wire clamp, and the second sliding groove is just attached to the extending part of the end part of the upper tongue of the wire clamp when the lower tongue is clamped on the upper tongue of the wire clamp.
A method of using a pre-tensioned spring-type rotating ground cord, the method comprising:
before installing the wire clamp, the lower biting tongue presses the spring to enable the spring to store elastic force and to be close to the connecting arm of the wire clamp, the operating rod is rotated to enable the thread on the adjusting screw rod to be clamped by the thread in the adjusting screw hole, when the upper biting tongue of the wire clamp is hooked on the wire, the operating rod is rotated to enable the thread of the adjusting screw rod to be completely superposed with the removed part of the adjusting screw hole, at the moment, the spring elastic force is utilized to push the lower biting tongue to the upper biting tongue and clamp the wire, then the operating rod is rotated manually to conduct fine adjustment fastening, and the wire is prevented from slipping; when the wire is removed, the operating rod is rotated to enable the thread of the adjusting screw to be completely overlapped with the removed part of the adjusting screw hole, the operating rod is pulled by external force, the spring is pressed downwards, the lower biting tongue is far away from the upper biting tongue, and the wire is removed.
The invention has the beneficial effects that: compared with the prior art, when the wire clamp needs to be installed, the upper part of the adjusting screw rod can pass through the part which is not dug out by utilizing the gap formed by the dug-out part of the adjusting screw hole, so that the lower biting tongue can be quickly moved to the upper biting tongue, the number of turns of the adjusting screw rod rotating in the adjusting screw hole is reduced, the problem that the adjusting stroke is long when the traditional grounding wire is installed on the wire clamp is solved, the grounding wire can be quickly installed on a wire, the operation time is reduced, when the lower biting tongue and the upper biting tongue are folded to bite the wire, the lower biting tongue can be moved upwards by matching complete threads below the point A of the adjusting screw rod with threads in the adjusting screw hole, so that the wires with different thicknesses can be well clamped, meanwhile, the whole structure of the device is simpler, and the cost is not easy to damage. The invention has the advantages of capability of quickly installing the grounding wire under the condition of ensuring good clamping on wires with different thicknesses, lower cost and difficult damage.
Drawings
FIG. 1 is a schematic perspective view of examples 1 to 8 of the present invention;
FIG. 2 is a partial view at A of FIG. 1;
FIG. 3 is an exploded view of examples 1-8 of the present invention;
FIG. 4 is a partial view at B of FIG. 3;
FIG. 5 is a bottom view of a wire holder according to embodiments 1-8 of the present invention;
FIG. 6 is a top view of an adjusting screw according to embodiments 1-8 of the present invention;
figure 7 is a top view of a down bite tongue according to embodiments 1-8 of the present invention.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the detailed description.
Example 1 was carried out: referring to fig. 1-7, a pre-tensioned spring-type rotary earth wire includes: one end of the lead 2 is electrically connected with the lead clamp 3; the wire guide clamp 3 is characterized in that a connecting arm 3-1 at the lower part of the wire guide clamp 3 is provided with an adjusting screw hole 3-1-1; the upper end of the operating rod 1 is fixedly connected with an adjusting screw 8, the adjusting screw 8 is matched with an adjusting screw hole 3-1-1, and the operating rod 1 is matched with the wire clamp 3 through the adjusting screw 8 and the adjusting screw hole 3-1-1; the upper part of the lower biting tongue 4 is an arc surface with the same inner diameter as the inner diameter of the upper biting tongue 3-3 of the wire clamp 3, and the lower part of the lower biting tongue 4 is rotationally connected with the upper end of the adjusting screw 8 so that the lower biting tongue 4 can rotate around the central axis of the adjusting screw 8; a part of the threads in the adjusting screw hole 3-1-1 is removed, the projection of the threads in the adjusting screw hole 3-1-1 on a plane perpendicular to the central axis of the adjusting screw hole 3-1-1 is an arc, A is a point in the middle of the adjusting screw 8, the threads from the point A to the upper end of the adjusting screw 8 are complementary with the arc, so that the threads at the upper end of the adjusting screw 8 and the arc can form a circular ring shape, or the threads at the upper end of the adjusting screw 8 are smaller than the arc complementary with the arc, the threads completely matched with the adjusting screw hole 3-1-1 are arranged from the point A to the lower end of the adjusting screw 8, and the distance from the point A to the upper end of the adjusting screw 8 is smaller than the distance from the upper biting tongue 3-3 to the connecting arm 3-1 of the wire clamp 3.
When the wire clamp 3 needs to be installed, the upper part of the adjusting screw rod 8 can pass through the part which is not dug out by utilizing the gap formed by the dug-out part of the adjusting screw hole 3-1-1, so that the lower biting tongue 4 can be quickly moved to the upper biting tongue 3-3, the number of turns of the adjusting screw rod 8 rotating in the adjusting screw hole 3-1-1 is reduced, the problem of long adjusting stroke when the wire clamp 3 is installed on the traditional grounding wire is avoided, the grounding wire can be quickly installed on the wire 2, the operation time is reduced, when the lower biting tongue 4 and the upper biting tongue 3-3 are folded to bite the wire 2, the lower biting tongue 4 can be moved towards the upper biting tongue 3-3 by matching the complete thread below the point of the adjusting screw rod 8A with the thread in the adjusting screw hole 3-1-1, so that the wires 2 with different thicknesses can be well clamped, and the whole structure of the device is simpler, so that the cost is low and the damage is not easy to happen. The invention has the advantages of rapid installation of the grounding wire under the condition of ensuring good clamping of wires 2 with different thicknesses, lower cost and difficult damage.
Example 2 was carried out: referring to fig. 1 to 7, in addition to the contents of embodiment 1, further in the present embodiment, the method further includes: the lower end of the connecting rod 5 is fixedly connected to the upper end of the adjusting screw 8, the connecting rod 5 is coaxial with the adjusting screw 8, the upper end of the connecting rod 5 is fixedly connected with a limiting head 6, the limiting head 6 is a cylinder with a diameter larger than that of the connecting rod 5, and the limiting head 6 is coaxial with the connecting rod 5; the connecting hole 4-1 is a 2-level step type, the diameter of the step at the upper part is larger than that of the step at the lower part, the diameter of the step at the lower part is matched with that of the connecting rod 5, the diameter of the step at the upper part is matched with that of the limiting head 6, and the length of the step at the lower part is matched with that of the connecting rod 5; wherein, the adjusting screw rod 8 is matched with the lower step of the connecting hole 4-1 through the limiting head 6, so that the lower latch tongue 4 is limited on the adjusting screw rod 8 in the up-down direction.
The lower biting tongue 4 can be rotatably connected with the adjusting screw rod 8 through the connecting rod 5, and the lower biting tongue 4 is limited on the adjusting screw rod 8 in the up-down direction through the limit head 6 matched with the lower step of the connecting hole 4-1.
Example 3 of implementation: referring to fig. 1 to 7, in addition to the contents of embodiment 2, further in the present embodiment, the method further includes: a spring 7, wherein the spring 7 is arranged between the connecting arm 3-1 of the wire clamp 3 and the lower biting tongue 4.
Without the spring 7, when the operator needs to adjust the lower tongue 4 toward the upper tongue 3-3, an operator needs to rotate the operating rod 1 and continuously try to determine whether the thread of the adjusting screw 8 moves into the gap of the thread of the adjusting screw hole 3-1-1, in order to increase the probability of threading the adjusting screw 8 into the gap of the thread of the adjusting screw hole 3-1-1, the operator can only increase the number of trial points, but the operation time is increased, the spring 7 enables an operator to always have a force for pushing the adjusting screw 8 to move upwards towards the tongue 3-3 in the process of rotating the adjusting screw 8, the operator only needs to rotate the adjusting screw 8 for one circle, and once the thread of the adjusting screw 8 rotates to the clearance of the adjusting screw hole 3-1-1, the adjusting screw 8 can move upwards along the clearance towards the tongue 3-3 under the pushing of the elastic force. The problem of low success rate in adjusting the thread of the adjusting screw 8 to the thread gap of the adjusting screw hole 3-1-1 without the spring 7 is solved.
Example 4 of implementation: referring to fig. 1-7, in addition to the description of embodiment 2, in this embodiment, further, the projection arc of the thread in the adjusting screw hole 3-1-1 on the plane perpendicular to the central axis of the adjusting screw hole 3-1-1 includes 2 segments, and the 2 segments are symmetrically distributed around the center of the adjusting screw hole 3-1-1.
So that the adjusting screw 8 is not deflected in the adjusting screw hole 3-1-1.
Example 5 was carried out: referring to fig. 1-7, in addition to the description of embodiment 2, in this embodiment, further, the side of the lower tongue 4 close to the vertical arm 3-2 of the wire guide 3 is a first sliding groove 4-2 matching with the vertical arm 3-2 of the operating rod 1, and the first sliding groove 4-2 is just fit on the vertical arm 3-2 of the operating rod 1 when the lower tongue 4 is mounted on the adjusting screw 8.
So that the lower bite tongue 4 is less shaken.
Example 6 of implementation: referring to fig. 1 to 7, in addition to the description of embodiment 1, in the present embodiment, further, the end of the tongue 3-3 of the wire clamp 3 is extended vertically downward.
So that the wire clamp 3 can stably hook the wire 2.
Example 7 was carried out: referring to fig. 1-7, in addition to the description of embodiment 6, in this embodiment, further, the lower tongue 4 is provided with a second slide groove 4-3 on the side of the end of the upper tongue 3-3 of the wire clamp 3, the second slide groove 4-3 is matched with the extension of the end of the upper tongue 3-3 of the wire clamp 3, and the second slide groove 4-3 is just attached to the extension of the end of the upper tongue 3-3 of the wire clamp 3 when the lower tongue 4 is clamped on the upper tongue 3-3 of the wire clamp 3.
So that the lower biting tongue 4 and the upper biting tongue 3-3 shake and lighten when being occluded.
Example 8 was carried out: a method of using a pre-tensioned spring-type rotating ground cord, the method comprising: before installing the wire clamp 3, the lower biting tongue 4 is pressed on the spring 7 to enable the spring 7 to store elastic force and to be close to the connecting arm 3-1 of the wire clamp 3, the operating rod 1 is rotated to enable the thread on the adjusting screw rod 8 to be clamped by the thread in the adjusting screw hole 3-1-1, when the upper biting tongue 3-3 of the wire clamp 3 is hooked on the wire 2, the operating rod 1 is rotated to enable the thread of the adjusting screw rod 8 to be completely superposed with the removed part of the adjusting screw hole 3-1-1, at the moment, the spring 7 is utilized to push the lower biting tongue 4 to the upper biting tongue 3-3 and clamp the wire 2, and then the operating rod 1 is rotated manually to carry out fine adjustment fastening to prevent the wire 2 from slipping; when the wire is removed, the operating rod 1 is rotated to enable the thread of the adjusting screw 8 to be completely superposed with the removed part of the adjusting screw hole 3-1-1, the operating rod 1 is pulled by external force, the spring 7 is pressed downwards, the lower biting tongue 4 is far away from the upper biting tongue 3-3, and the wire 2 is removed.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A pre-tensioned spring-type rotary earth wire comprising:
one end of the lead (2) is electrically connected with the lead clamp (3);
the wire guide clamp (3), the connecting arm (3-1) of the lower part of the wire guide clamp (3) is provided with an adjusting screw hole (3-1-1);
the upper end of the operating rod (1) is fixedly connected with an adjusting screw (8), the adjusting screw (8) is matched with an adjusting screw hole (3-1-1), and the operating rod (1) is matched with the adjusting screw hole (3-1-1) through the adjusting screw (8) and is connected with the wire clamp (3);
the upper part of the lower biting tongue (4) is an arc surface with the same inner diameter as the inner diameter of the upper biting tongue (3-3) of the wire clamp (3), and the lower part of the lower biting tongue (4) is rotationally connected with the upper end of the adjusting screw rod (8) so that the lower biting tongue (4) can rotate around the central axis of the adjusting screw rod (8);
it is characterized in that a part of the thread in the adjusting screw hole (3-1-1) is removed, the projection of the thread in the adjusting screw hole (3-1-1) on a plane vertical to the central axis of the adjusting screw hole (3-1-1) is an arc, A is a point in the middle of the adjusting screw rod (8), the thread from the point A to the upper end of the adjusting screw rod (8) is complementary with the arc, so that the thread at the upper end of the adjusting screw rod (8) and the arc can form a circular ring shape, or the thread at the upper end of the adjusting screw rod (8) is smaller than the circular arc which is complementary with the circular arc, the thread which is completely matched with the adjusting screw hole (3-1-1) is arranged from the point A to the lower end of the adjusting screw rod (8), the distance from the point A to the upper end of the adjusting screw rod (8) is less than the distance from the upper biting tongue (3-3) to the connecting arm (3-1) of the wire clamp (3).
2. The pre-tensioned spring-type rotary grounding cord according to claim 1, further comprising:
the lower end of the connecting rod (5) is fixedly connected to the upper end of the adjusting screw rod (8), the connecting rod (5) is coaxial with the adjusting screw rod (8), the upper end of the connecting rod (5) is fixedly connected with a limiting head (6), the limiting head (6) is a cylinder with a diameter larger than that of the connecting rod (5), and the limiting head (6) is coaxial with the connecting rod (5);
the connecting hole (4-1) is of a 2-level step type, the diameter of the step at the upper part is larger than that of the step at the lower part, the diameter of the step at the lower part is matched with that of the connecting rod (5), the diameter of the step at the upper part is matched with that of the limiting head (6), and the length of the step at the lower part is matched with that of the connecting rod (5);
wherein, the adjusting screw rod (8) is matched with the lower step of the connecting hole (4-1) through the limiting head (6) so that the lower biting tongue (4) is limited on the adjusting screw rod (8) in the up-down direction.
3. The pre-tensioned spring-type rotary grounding cord according to claim 2, further comprising:
the spring (7), the spring (7) is arranged between the connecting arm (3-1) of the wire clamp (3) and the lower biting tongue (4).
4. The pre-tensioned elastic type rotating grounding wire according to claim 2, wherein the projection arc of the thread in the adjusting screw hole (3-1-1) on the plane perpendicular to the central axis of the adjusting screw hole (3-1-1) comprises 2 segments, and the 2 segments of the arc are symmetrically distributed centering on the center of the adjusting screw hole (3-1-1).
5. The pre-tensioned elastic type rotary grounding wire according to claim 2, wherein the side of the lower tongue (4) close to the vertical arm (3-2) of the wire guide (3) is provided with a first sliding groove (4-2) matching with the vertical arm (3-2) of the operating rod (1), and the first sliding groove (4-2) is just attached to the vertical arm (3-2) of the operating rod (1) when the lower tongue (4) is mounted on the adjusting screw (8).
6. The pre-tensioned elastic type rotary earth wire according to claim 1, characterized in that the end of the upper tongue (3-3) of the wire clamp (3) is extended vertically downward.
7. The rotary earth wire of the pre-tensioned spring type according to claim 6, characterised in that the lower tongue (4) is provided with a second runner (4-3) on the side of the end of the upper tongue (3-3) of the wire holder (3), the second runner (4-3) matching the extension of the end of the upper tongue (3-3) of the wire holder (3), the second runner (4-3) fitting exactly on the extension of the end of the upper tongue (3-3) of the wire holder (3) when the lower tongue (4) is clamped on the upper tongue (3-3) of the wire holder (3).
8. A method of using a pre-tensioned spring-type rotary grounding cord according to claim 3, characterized in that the method comprises:
before the wire clamp (3) is installed, the lower biting tongue (4) is enabled to press the spring (7) to enable the spring (7) to store elastic force and to be close to a connecting arm (3-1) of the wire clamp (3), the operating rod (1) is rotated to enable the threads on the adjusting screw rod (8) to be clamped by the threads in the adjusting screw hole (3-1-1), when the upper biting tongue (3-3) of the wire clamp (3) is hooked on the wire (2), the operating rod (1) is rotated to enable the threads of the adjusting screw rod (8) to be completely overlapped with the removed part of the adjusting screw hole (3-1-1), at the moment, the lower biting tongue (4) is pushed to the upper biting tongue (3-3) by the elastic force of the spring (7), the wire (2) is clamped, and then fine adjustment fastening is carried out by manually rotating the operating rod (1), so that the wire (2) is prevented from slipping; when the wire is removed, the operating rod (1) is rotated to enable the thread of the adjusting screw rod (8) to be completely overlapped with the removed part of the adjusting screw hole (3-1-1), the operating rod (1) is pulled by external force, the spring (7) is pressed downwards, the lower biting tongue (4) is far away from the upper biting tongue (3-3), and the wire (2) is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111461901.7A CN114171939B (en) | 2021-12-02 | 2021-12-02 | Pre-stretched elastic type rotary grounding wire and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111461901.7A CN114171939B (en) | 2021-12-02 | 2021-12-02 | Pre-stretched elastic type rotary grounding wire and use method thereof |
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| CN114171939A true CN114171939A (en) | 2022-03-11 |
| CN114171939B CN114171939B (en) | 2022-09-23 |
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| US20190190171A1 (en) * | 2016-08-30 | 2019-06-20 | Honeywell International Inc. | Cam driven, spring loaded grounding clamp |
| CN109742686A (en) * | 2019-03-25 | 2019-05-10 | 云南电网有限责任公司昆明供电局 | Ground potential tears tower nonloaded line drainage thread operation extinguishing arc clamp tool open |
| CN110137716A (en) * | 2019-06-18 | 2019-08-16 | 国网河南省电力公司焦作供电公司 | A kind of anticreep fast-assembling pothook type short-circuit grounding wire wire clamp |
| CN212462052U (en) * | 2020-06-12 | 2021-02-02 | 云南电网有限责任公司丽江供电局 | Anti-drop earth bar that can operate fast |
| CN111786151A (en) * | 2020-07-03 | 2020-10-16 | 广东电网有限责任公司韶关供电局 | Grounding rod and grounding device |
| CN214068920U (en) * | 2021-01-28 | 2021-08-27 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | Quick grounding wire clamp |
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| CN114171939B (en) | 2022-09-23 |
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