CN107204595B - Strain clamp - Google Patents

Strain clamp Download PDF

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Publication number
CN107204595B
CN107204595B CN201710459338.7A CN201710459338A CN107204595B CN 107204595 B CN107204595 B CN 107204595B CN 201710459338 A CN201710459338 A CN 201710459338A CN 107204595 B CN107204595 B CN 107204595B
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China
Prior art keywords
pipe body
connecting rod
wire
plate
drainage
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CN201710459338.7A
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Chinese (zh)
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CN107204595A (en
Inventor
刘胜春
张军
董玉明
周立宪
司佳钧
孙宝东
张昭
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI filed Critical State Grid Corp of China SGCC
Priority to CN201710459338.7A priority Critical patent/CN107204595B/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/02Devices for adjusting or maintaining mechanical tension, e.g. take-up device

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  • Clamps And Clips (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

The invention provides a strain clamp, which comprises: the drainage device comprises a ring body, a first connecting rod, a first pipe body and a drainage component; the ring body is arranged outside the first pipe body and detachably connected with the first end of the first connecting rod; the first connecting rod penetrates through the first end of the first pipe body, is partially arranged in the first pipe body and is connected with the first pipe body, the first end of the first connecting rod is arranged outside the first pipe body, and the second end of the first connecting rod is arranged in the first pipe body; the wire penetrates through the second end of the first pipe body and is partially arranged in the first pipe body, and the wire is respectively connected with the second ends of the first pipe body and the first connecting rod; the drainage component is connected with the first pipe body. According to the invention, the ring body is detachably connected with the first connecting rod and is detached from the first end of the first connecting rod, the blocking of the ring body is avoided, the wire can be pulled out of the wire disc by dragging the first connecting rod, and the working efficiency is improved.

Description

Strain clamp
Technical Field
The invention relates to the technical field of power transmission and transformation, in particular to a strain clamp.
Background
The strain clamp is used for fixing a lead or a lightning conductor on a strain insulator string of a non-linear tower to play a role in anchoring, can also be used for fixing a stay wire of the stay wire tower, and is an important hardware fitting in a power transmission line.
Before the wire is connected with strain clamp, need pull out and adjust the arc of wire from the wire coil with the wire, present general exclusive use pulling equipment pulls out the wire, changes pulling equipment into turn-buckle again to adjust the arc of wire and hang down, complex operation, work efficiency is low.
Disclosure of Invention
In view of the above, the invention provides a strain clamp, which aims to solve the problem of low working efficiency caused by the fact that a traction device is required to be used alone to pull out a lead and then a wire grip is used to adjust the sag of the lead at present.
In one aspect, the invention provides a strain clamp. This fastener includes: the drainage device comprises a ring body, a first connecting rod, a first pipe body and a drainage component; the ring body is arranged outside the first pipe body and detachably connected with the first end of the first connecting rod; the first connecting rod penetrates through the first end of the first pipe body, is partially arranged in the first pipe body and is connected with the first pipe body, the first end of the first connecting rod is arranged outside the first pipe body, and the second end of the first connecting rod is arranged in the first pipe body; the wire penetrates through the second end of the first pipe body and is partially arranged in the first pipe body, and the wire is respectively connected with the second ends of the first pipe body and the first connecting rod; the drainage component is connected with the first pipe body.
Further, among the above-mentioned strain clamp, the outer aluminium wire of wire is connected with first body, and the inlayer sinle silk of wire is connected with the second end of head rod.
Furthermore, in the strain clamp, the first end of the first connecting rod is in threaded connection with the ring body. .
Furthermore, in the strain clamp, a first groove is formed in the outer wall of the first connecting rod, which is arranged on the outer portion of the first pipe body, and the first groove is used for hooking the ground anchor or the wire tightener.
Further, among the above-mentioned strain clamp, the drainage subassembly includes: a drainage plate and a drainage wire clamp; wherein, the drainage plate is connected with the first pipe body; the drainage wire clamp is connected with the drainage plate.
Further, among the above-mentioned strain clamp, the drainage plate is the welding with first body.
Further, among the above-mentioned strain clamp, the drainage plate is connected for dismantling with first body.
Further, among the above-mentioned strain clamp, the drainage plate includes: the device comprises a first cover plate, a second cover plate, a first connecting plate and a second connecting plate which are arranged in parallel; the first cover plate is connected with the second cover plate, the first cover plate is provided with a second groove, the second cover plate is provided with a third groove, and the second groove and the third groove are surrounded to form a channel for the first pipe body to penetrate through; first connecting plate and second connecting plate all are connected with the second apron, and the drainage fastener presss from both sides and locates between first connecting plate and the second connecting plate to, the drainage fastener is connected with first connecting plate and second connecting plate homogeneous phase.
Furthermore, in the strain clamp, the first cover plate and the second cover plate are connected by bolts.
Further, among the above-mentioned strain clamp, still include: the second pipe body penetrates through the second end of the first pipe body and is arranged in the first pipe body, the second pipe body is connected with the first pipe body, the first end of the second pipe body is arranged opposite to the second end of the first connecting rod, the wire penetrates through the second end of the second pipe body and is partially arranged in the second pipe body, and the outer-layer aluminum wire is connected with the second pipe body.
Further, above-mentioned strain clamp, the ring body includes: a connecting ring and a second connecting rod; the connecting ring and the second connecting rod are arranged outside the first pipe body, the strain insulator-string is connected with the first end of the second connecting rod through the connecting ring, and the second end of the second connecting rod is detachably connected with the first end of the first connecting rod.
Compared with the prior art, in the invention, the ring body is detachably connected with the first connecting rod and is detached from the first end of the first connecting rod without being blocked by the ring body, and after the second end of the first connecting rod is pressed and connected with the wire, the wire can be pulled out of the wire coil by pulling the first connecting rod. The guide wire is not required to be drawn out by independently using a traction device, so that the operation steps are saved, and the working efficiency is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a strain clamp according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a strain clamp according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first connecting rod in the strain clamp according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first tube in the strain clamp according to the embodiment of the present invention;
FIG. 5 is a front view of a drainage plate in the strain clamp according to an embodiment of the present invention;
FIG. 6 is a side view of a drainage plate in the strain clamp according to an embodiment of the present invention;
fig. 7 is a schematic view of a connection structure of a first tube and a drainage plate in the strain clamp according to the embodiment of the present invention;
fig. 8 is a schematic structural view of a second tube of the strain clamp according to the embodiment of the present invention;
fig. 9 is a schematic structural diagram of a ring body in the strain clamp according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 4, a preferred structure of the strain clamp provided in this embodiment is shown. As shown in the figure, this fastener includes: the ring body 1, first connecting rod 2, first body 3 and drainage subassembly 4.
The ring body 1 is disposed outside the first pipe body 3, the ring body 1 is detachably connected to a first end (a left end shown in fig. 1) of the first connection rod 2, and the strain string can be connected to the first end of the first connection rod 2 through the ring body 1. The first connecting rod 2 extends into the first pipe 3 from a first end (left end shown in fig. 1) of the first pipe 3 and is pressed with the first pipe 3, the first end of the first connecting rod 2 is arranged outside the first pipe 3, and a second end (right end shown in fig. 1) of the first connecting rod 2 is arranged in the first pipe 3, so that the first connecting rod 2 is partially arranged in the first pipe 3. The lead extends into the first tube 3 from a second end (a right end shown in fig. 1) of the first tube 3, and is respectively connected with the first tube 3 and the second end of the first connecting rod 2 in a pressing manner. The drainage component 4 is connected with the first pipe body 3.
When the wire drawing device is used, the ring body 1 is detached from the first end of the first connecting rod 2, and after the second end of the first connecting rod 2 is in crimping connection with a wire, the first connecting rod 2 is pulled, and the wire is drawn out of the wire coil. Then, if the tension string needs to be assembled, the first connecting rod 2 can be matched with the ground anchor to temporarily fix the lead; the turnbuckle can be fitted to the first connecting rod 2 if the sag of the wire needs to be adjusted.
Compared with the prior art, in this embodiment, the ring body 1 is detachably connected with the first connecting rod 2, and the first end of the first connecting rod 2 is detached without the blocking of the ring body 1, so that after the second end of the first connecting rod 2 is pressed and connected with the wire, the wire can be pulled out of the wire coil by pulling the first connecting rod 2. The guide wire is not required to be drawn out by independently using a traction device, so that the operation steps are saved, and the working efficiency is improved.
In the above embodiment, the outer aluminum wire of the wire is crimped with the first tube 3, and then a part of the outer aluminum wire of the wire is stripped off to expose the inner wire core, which is crimped with the second end of the first connecting rod 2. During specific implementation, the wire can be a steel core wire and can also be an aluminum alloy core wire. Carry out the crimping to outer layer aluminium wire and inlayer sinle silk respectively like this, can stabilize effectual conductor of gripping, couple together wire and strain insulator-string, and then better transmission power and electric load.
In the above embodiment, the first end of the first connecting rod 2 and the ring body 1 can be connected by screw threads, and the structure is simple and easy to operate.
In the above embodiment, the outer wall of the first connecting rod 2 may be provided with a first groove 21, and the first groove 21 is located at a portion of the first connecting rod 2 outside the first pipe body 3. The ground anchor can be hooked in the first groove 21 to temporarily fix the lead; the wire grip can also be hooked in the first groove 21 to tension the wire.
In the above embodiment, the drainage assembly 4 may include: a drainage plate 41 and a drainage clip 42. Wherein, the drainage plate 41 can be connected with the outer wall of the first tube body 3, and the drainage wire clip 42 can be connected with the drainage plate 41. The drainage plate 41 and the outer wall of the first pipe body 3 can be welded or detachably connected, such as bolted connection. When the drainage plate 41 is damaged, it is easy to replace.
Referring to fig. 5 to 7, as shown, the drainage plate 41 may include: a first cover 411, a second cover 412, a first connection plate 413 and a second connection plate 414 arranged in parallel. Wherein, first apron 411 can be connected with second apron 412, and second recess 4111 has been seted up to first apron 411, and third recess 4121 has been seted up to second apron 412, and second recess 4111 and third recess 4121 can enclose the passageway that establishes to wear to establish for first body 3. To facilitate the mounting and dismounting of the first cover plate 411 and the second cover plate 412, the first cover plate 411 and the second cover plate 412 may be detachably connected, for example, bolted. The first connection plate 413 and the second connection plate 414, which are disposed in parallel, may be connected to the second cap 412, the drain clip 42 may be interposed between the first connection plate 413 and the second connection plate 414, and the drain clip 42 may be connected to both the first connection plate 413 and the second connection plate 414. This structure is convenient for the installation in dismantlement of drainage plate 41 and first body 3, is convenient for change. In an implementation, the first connecting plate 413 and the second connecting plate 414 may be integrally formed with the second cover 412.
In the above embodiment, the method may further include: a second tube 5. Referring to fig. 8, a preferred structure of the second pipe 5 provided in the present embodiment is shown. The second body 5 can stretch into in the first body 3 and arrange in the first body 3 completely from the second end of first body 3, and the second body 5 can be with first body 3 looks crimping. The first end (left end as viewed in fig. 8) of the second tube 5 may be disposed opposite the second end of the anchor. The lead can extend into the second tube 5 from the second end (the right end shown in fig. 8) of the second tube 5 and be partially arranged in the second tube 5, and the outer aluminum wire of the lead can be in compression joint with the second tube 5.
In this embodiment, when the wire is a molded wire, the diameter of the molded wire is smaller than that of a general wire, so that the second tube 5 is sleeved between the molded wire and the first tube 3, and the molded wire with a smaller diameter can be effectively held.
Referring to fig. 9, a preferred construction of the ring body 1 is shown. As shown, the ring body 1 may include: a connection ring 11 and a second connection rod 12; the connection ring 11 and the second connection rod 12 are both disposed outside the first tube 3, a first end (a left end shown in fig. 9) of the second connection rod 12 may be connected to the connection ring 11, the strain string may be connected to a first end of the second connection rod 12 through the connection ring 11, and a second end (a right end shown in fig. 9) of the second connection rod 12 may be detachably connected to the first end of the first connection rod 2. In a specific implementation, the connection ring 11 and the second connection rod 12 may be integrally formed. The second end of the second connecting rod 12 and the first end of the first connecting rod 2 may be in threaded connection.
In summary, compared with the prior art, in the embodiment, the ring body is detachably connected with the first connecting rod, the first end of the first connecting rod is detached, the ring body is not blocked, and after the second end of the first connecting rod is pressed and connected with the wire, the wire can be pulled out of the wire coil by pulling the first connecting rod. The guide wire is not required to be drawn out by independently using a traction device, so that the operation steps are saved, and the working efficiency is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. The utility model provides a strain clamp for press from both sides and establish the wire, its characterized in that includes: the drainage device comprises a ring body (1), a first connecting rod (2), a first pipe body (3) and a drainage component (4); wherein,
the ring body (1) is arranged outside the first pipe body (3), and the ring body (1) is detachably connected with the first end of the first connecting rod (2);
the first connecting rod (2) penetrates through the first end of the first pipe body (3), is partially arranged in the first pipe body (3) and is connected with the first pipe body (3), the first end of the first connecting rod (2) is arranged outside the first pipe body (3), and the second end of the first connecting rod (2) is arranged in the first pipe body (3);
the conducting wire penetrates through the second end of the first pipe body (3) and is partially arranged in the first pipe body (3), and the conducting wire is respectively connected with the second ends of the first pipe body (3) and the first connecting rod (2); the ring body (1) is used for being detached from the first end of the first connecting rod (2) before the first end of the first connecting rod (2) is in pressure joint with the wire, and the first connecting rod (2) is used for pulling the wire out of the wire coil by dragging the first connecting rod (2) after the first end of the first connecting rod (2) is in pressure joint with the wire;
the outer wall of the first connecting rod (2) which is arranged at the outer part of the first pipe body (3) is provided with a first groove (21), the first groove (21) is used for hooking a ground anchor or a wire tightener, the first groove (21) is used for being matched with the ground anchor to temporarily fix the wire when a strain insulator string is assembled and used for being matched with the wire tightener to tighten the wire when the wire sag is adjusted;
the drainage component (4) is connected with the first pipe body (3).
2. The strain clamp of claim 1,
the outer layer aluminum wire of the wire is connected with the first pipe body (3), and the inner layer wire core of the wire is connected with the second end of the first connecting rod (2).
3. The strain clamp of claim 1,
the first end of the first connecting rod (2) is in threaded connection with the ring body (1).
4. The strain clamp according to claim 1, characterized in that the drainage assembly (4) comprises: a drainage plate (41) and a drainage wire clamp (42); wherein,
the drainage plate (41) is connected with the first pipe body (3);
the drainage wire clamp (42) is connected with the drainage plate (41).
5. The strain clamp of claim 4,
the drainage plate (41) and the first pipe body (3) are welded.
6. The strain clamp of claim 4,
the drainage plate (41) is detachably connected with the first pipe body (3).
7. The strain clamp of claim 6, wherein the flow guide plate (41) comprises: the device comprises a first cover plate (411), a second cover plate (412), a first connecting plate (413) and a second connecting plate (414) which are arranged in parallel; wherein,
the first cover plate (411) is connected with the second cover plate (412), the first cover plate (411) is provided with a second groove (4111), the second cover plate (412) is provided with a third groove (4121), and the second groove (4111) and the third groove (4121) are enclosed to form a channel for the first pipe body (3) to penetrate through;
the first connecting plate (413) and the second connecting plate (414) are both connected with the second cover plate (412), the drainage clamp (42) is clamped between the first connecting plate (413) and the second connecting plate (414), and the drainage clamp (42) is connected with the first connecting plate (413) and the second connecting plate (414).
8. The strain clamp of claim 7,
the first cover plate (411) and the second cover plate (412) are in bolted connection.
9. The strain clamp of claim 2, further comprising:
the second pipe body (5) penetrates through the second end of the first pipe body (3) and is arranged in the first pipe body (3) and is connected with the first pipe body (3), the first end of the second pipe body (5) is opposite to the second end of the first connecting rod (2), the wire penetrates through the second end of the second pipe body (5) and is partially arranged in the second pipe body (5), and the outer-layer aluminum wire is connected with the second pipe body (5).
10. The strain clamp according to any one of claims 1 to 8, wherein the ring body (1) comprises: a connecting ring (11) and a second connecting rod (12); wherein,
the connecting ring (11) and the second connecting rod (12) are arranged outside the first pipe body (3), the strain insulator-string is connected with the first end of the second connecting rod (12) through the connecting ring (11), and the second end of the second connecting rod (12) is detachably connected with the first end of the first connecting rod (2).
CN201710459338.7A 2017-06-16 2017-06-16 Strain clamp Active CN107204595B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710459338.7A CN107204595B (en) 2017-06-16 2017-06-16 Strain clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710459338.7A CN107204595B (en) 2017-06-16 2017-06-16 Strain clamp

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CN107204595A CN107204595A (en) 2017-09-26
CN107204595B true CN107204595B (en) 2020-06-26

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117117751B (en) * 2023-10-24 2024-01-09 国网山东省电力公司齐河县供电公司 Modular strain clamp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001128346A (en) * 1999-10-25 2001-05-11 Asahi Tec Corp Compressive clamp for distribution line
CN106803657A (en) * 2015-11-26 2017-06-06 江苏天南电力器材有限公司 One kind has monitoring function strain clamp
CN205791386U (en) * 2016-05-20 2016-12-07 江东金具设备有限公司 A kind of UHV transmission line assembly fixture wire type strain clamp
CN206135352U (en) * 2016-08-31 2017-04-26 山东光大线路器材有限公司 Novel compression type strain clamp
CN207150120U (en) * 2017-06-16 2018-03-27 国家电网公司 Strain clamp

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