CN111585234A - Suspension clamp - Google Patents

Suspension clamp Download PDF

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Publication number
CN111585234A
CN111585234A CN202010255088.7A CN202010255088A CN111585234A CN 111585234 A CN111585234 A CN 111585234A CN 202010255088 A CN202010255088 A CN 202010255088A CN 111585234 A CN111585234 A CN 111585234A
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CN
China
Prior art keywords
block
piston
clamp
wire
clamping
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.)
Granted
Application number
CN202010255088.7A
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Chinese (zh)
Other versions
CN111585234B (en
Inventor
刘平平
岳灵平
俞强
方杰
殷志敏
王一波
张健
黄松林
缪正
李响
李石
王琳慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUZHOU ELECTRIC POWER DESIGN INSTITUTE CO LTD
Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
HUZHOU ELECTRIC POWER DESIGN INSTITUTE CO LTD
Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUZHOU ELECTRIC POWER DESIGN INSTITUTE CO LTD, Huzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical HUZHOU ELECTRIC POWER DESIGN INSTITUTE CO LTD
Priority to CN202010255088.7A priority Critical patent/CN111585234B/en
Publication of CN111585234A publication Critical patent/CN111585234A/en
Application granted granted Critical
Publication of CN111585234B publication Critical patent/CN111585234B/en
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H02G7/05Suspension arrangements or devices for electric cables or lines
    • H02G7/053Suspension clamps and clips for electric overhead lines not suspended to a supporting wire

Abstract

The invention provides a suspension clamp which comprises a clamp body, wherein wire fixing clamps for clamping a wire are symmetrically arranged on two sides of the clamp body, each wire fixing clamp comprises a lower clamping block and an upper clamping block, a bolt is connected between the upper clamping block and the lower clamping block, the wire is clamped between the upper clamping block and the lower clamping block, and anti-skid grains are arranged on the surfaces of the upper clamping block and the lower clamping block, which are in contact with the wire; the bolt comprises a bolt head, an outer gear ring is arranged on the circumference of the bolt head, a sliding groove corresponding to the bolt head is formed in the upper surface of the upper clamping plate, a moving block capable of axially moving along the sliding groove is connected onto the sliding groove, a tooth groove matched with the outer gear ring is formed in one end, close to the bolt head, of the moving block, and a spring is arranged between one end, far away from the bolt head, of the moving block and the upper clamping plate. The invention solves the problem that the wire is easy to slide relative to the suspension clamp, thereby effectively avoiding the abrasion between the suspension clamp and the wire.

Description

Suspension clamp
Technical Field
The invention relates to the technical field of electric power fittings, in particular to a suspension clamp.
Background
The suspension clamp is used for fixing the conducting wire on an insulator string of a linear tower, or suspending the lightning conductor on the linear tower, and can also be used for supporting the fixing of a transposed conducting wire and a tension-resistant corner tower jumper wire on a transposed tower. The suspension clamp (commonly called a ship-shaped clamp) commonly used at present comprises a clamp body, a U-shaped bolt and a pressing strip, the U-shaped bolt is used for fixing the suspension clamp on the clamp body in a guiding mode, and the pressing strip is arranged between the U-shaped bolt and a conducting wire and plays a role in increasing the contact area. After the wire was installed on the suspension clamp, the wire received exogenic action such as wind-force and can take place to rock down, and the power that the wire produced when rocking can be exerted on the bolt, and time is one long, and the bolt takes place to become flexible easily, and the relative slip takes place for the wire easily with the suspension clamp, leads to suspension clamp and wire to produce wearing and tearing.
Such as: the invention discloses a novel energy-saving suspension clamp with a Chinese patent publication No. CN108110707A, and belongs to the field of circuit hardware. The energy-saving aluminum hanging plate comprises a suspension clamp main body, a gland, U-shaped bolts, an energy-saving aluminum hanging plate and a U-shaped hanging plate; wherein, the lead is arranged by penetrating through the suspension clamp main body and the gland; the suspension clamp main body is fixedly connected with the gland through a U-shaped bolt; the energy-saving aluminum hanging plate is connected with the suspension clamp main body through a fastener; the U-shaped hanging plate is connected with the energy-saving aluminum hanging plate through a fastening piece. The invention has the following disadvantages: after the wire was installed on the suspension clamp, the wire received exogenic action such as wind-force and can take place to rock down, and the power that the wire produced when rocking can be exerted on the bolt, and time is one long, and the bolt takes place to become flexible easily, and the relative slip takes place for the wire easily with the suspension clamp, leads to suspension clamp and wire to produce wearing and tearing.
Disclosure of Invention
The invention aims to solve the problems that when an existing suspension wire clamp is used, bolts are easy to loosen, a lead is easy to slide relative to a suspension wire clamp, and the suspension wire clamp and the lead are abraded.
The purpose of the invention is realized by the following technical scheme: a suspension clamp comprises a clamp body, wherein wire fixing clamps for clamping a wire are symmetrically arranged on two sides of the clamp body, each wire fixing clamp comprises a lower clamping block and an upper clamping block, a bolt is connected between the upper clamping block and the lower clamping block, the wire is clamped between the upper clamping block and the lower clamping block, and anti-skid grains are arranged on the surfaces, contacted with the wire, of the upper clamping block and the lower clamping block; the bolt comprises a bolt head, an outer gear ring is arranged on the circumference of the bolt head, a sliding groove corresponding to the bolt head is formed in the upper surface of the upper clamping plate, a moving block capable of axially moving along the sliding groove is connected onto the sliding groove, a tooth groove matched with the outer gear ring is formed in one end, close to the bolt head, of the moving block, and a spring is arranged between one end, far away from the bolt head, of the moving block and the upper clamping plate.
In the invention, the lead is fixed by the lead fixing clamp, and the lead is fixed between the upper clamping block and the lower clamping block by the guide fixing clamp through the bolt. After the bolt is screwed, the movable block can be tightly propped against the bolt head under the action of the spring, at the moment, the outer gear ring arranged on the bolt head can be embedded with the tooth groove on the movable block, so that the bolt can be prevented from loosening after being screwed, the lead is prevented from sliding relative to the suspension clamp easily, and the suspension clamp and the lead are effectively prevented from being abraded. The anti-skid lines arranged on the upper clamping block and the lower clamping block can increase the friction force between the upper clamping block and the lower clamping block and the conducting wire, and the anti-skid function is achieved.
Preferably, the upper surface of the upper clamping block is provided with a boss corresponding to the moving block, and the spring is arranged between the moving block and the boss.
Preferably, one end of the moving block close to the bolt head is an inwardly concave arc surface.
Preferably, an auxiliary clamping mechanism is arranged on the wire clamp body and comprises a guide hole arranged on the wire clamp body, the guide hole is arranged along the vertical direction, a cylinder body is arranged at the lower end of the guide hole, a first piston cavity and a second piston cavity are arranged in the cylinder body, a first piston capable of moving along the vertical direction is arranged in the first piston cavity, a second piston capable of moving along the vertical direction is arranged in the second piston cavity, a first piston rod is arranged at the upper end of the first piston, a second piston rod is arranged at the lower end of the second piston, the first piston rod and the second piston rod are both arranged along the vertical direction, a first through hole capable of allowing the first piston rod to pass is arranged on the cylinder body, a second through hole capable of allowing the second piston rod to pass is arranged on the cylinder body, the first piston rod upwardly passes through the guide hole, and a connecting hole is arranged at the upper end; a closed first oil chamber is formed between the first piston and the upper end of the first piston chamber, a closed second oil chamber is formed between the second piston and the upper end of the second piston chamber, the first oil chamber and the second oil chamber are connected through an oil hole, and hydraulic oil is filled between the first oil chamber and the second oil chamber; the wire clamp body is provided with a cushion block, the lower end of the second piston rod is provided with a pressing block, the pressing block is located right above the cushion block, and the wire is clamped between the cushion block and the pressing block. The connecting hole is used for connecting a linear tower, the wire can apply downward pressure to the wire clamp body, so that the first piston rod moves upwards relative to the wire clamp body, the first piston is driven to move upwards, the volume of the first oil cavity is reduced after the first piston moves upwards, hydraulic oil in the first oil cavity enters the second oil cavity through the oil hole, the second piston and the second piston rod are pushed to move downwards, the pressing plate is further pushed to move downwards, the guide is tightly pressed between the pressing plate and the cushion block, the auxiliary pressing effect is achieved on the guide, the wire is further fixed, and the relative sliding between the wire and the suspension wire clamp is further avoided.
Preferably, a sealing ring is embedded in the inner wall of the first through hole, and the sealing ring is in sealing fit with the first piston rod.
Preferably, a clamping groove matched with the lead is arranged on one side, close to the lead, of the pressing block, and a friction pad is arranged on the surface of the clamping groove.
Preferably, the friction pad is made of rubber.
The invention has the beneficial effects that: according to the invention, after the bolt is screwed, the movable block can be tightly propped against the bolt head under the action of the spring, and at the moment, the outer gear ring arranged on the bolt head can be embedded with the tooth groove on the movable block, so that the bolt can be ensured not to be loosened after being screwed, the lead is prevented from easily sliding relative to the suspension clamp, and the suspension clamp and the lead are effectively prevented from being abraded.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a top view of a wire retention clip.
Fig. 3 is a schematic structural diagram of the moving block.
Fig. 4 is an enlarged view of a portion a in fig. 1.
FIG. 5 is a schematic diagram of the structure of the briquette.
In the figure: 1. the cable clamp comprises a cable clamp body, 2, a lead, 3, a lower clamping block, 4, an upper clamping block, 5, a bolt, 6, a moving block, 7, a first piston rod, 8, a cushion block, 9, a connecting hole, 10, a spring, 11, a boss, 12, a sliding groove, 13, an outer gear ring, 14, a tooth groove, 15, a cylinder body, 16, a first piston, 17, a second piston, 18, a first oil cavity, 19, a second oil cavity, 20, an oil hole, 21, a second piston rod, 22, a pressing block, 23, a sealing ring, 24 and a friction pad.
Detailed Description
The invention is further described by the following detailed description in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 to 5, a suspension clamp includes a clamp body 1. Wire fixing clamps for clamping the wires 2 are symmetrically arranged on two sides of the wire clamp body 1. The wire fixing clamp comprises a lower clamping block 3 and an upper clamping block 4, a bolt 5 is connected between the lower clamping block 3 and the upper clamping block 4, and the wire 2 is clamped between the lower clamping block 3 and the upper clamping block 4. The bolt 5 comprises a bolt head, which is provided with an external gear ring 13 in the circumferential direction. The upper surface of the upper clamping plate 4 is provided with a sliding groove 12 corresponding to the bolt head, and the sliding groove 12 is positioned on one side of the bolt head. The sliding groove 12 is connected with a moving block 6 capable of moving along the axial direction of the sliding groove 12, and one end of the moving block 6 close to the bolt head is an inward concave arc surface. One end of the moving block 6 close to the bolt head is provided with a tooth groove 14 matched with the outer gear ring. The upper surface of the upper clamping block 4 is provided with a boss 11 corresponding to the moving block 6, and a spring 10 is arranged between one end of the moving block 6 far away from the bolt head and the boss 11. In the invention, the lead is fixed by the lead fixing clamp, and the lead is fixed between the upper clamping block and the lower clamping block by the guide fixing clamp through the bolt. After the bolt is screwed, the movable block can be tightly propped against the bolt head under the action of the spring, at the moment, the outer gear ring arranged on the bolt head can be embedded with the tooth groove on the movable block, so that the bolt can be prevented from loosening after being screwed, the lead is prevented from sliding relative to the suspension clamp easily, and the suspension clamp and the lead are effectively prevented from being abraded. The anti-skid lines arranged on the upper clamping block and the lower clamping block can increase the friction force between the upper clamping block and the lower clamping block and the conducting wire, and the anti-skid function is achieved.
The wire clamp body 1 is provided with an auxiliary clamping mechanism. The auxiliary clamping mechanism comprises a guide hole arranged on the wire clamp body 1. The guide hole is provided in a vertical direction. The lower end of the guide hole is provided with a cylinder body 15. A first piston cavity and a second piston cavity are arranged in the cylinder body 15, a first piston 16 capable of moving along the vertical direction is arranged in the first piston cavity, and a second piston 15 capable of moving along the vertical direction is arranged in the second piston cavity. The upper end of the first piston 14 is provided with a first piston rod 6 and the lower end of the second piston 17 is provided with a second piston rod 21. The first piston rod 6 and the second piston rod 21 are both arranged in the vertical direction. The cylinder 15 is provided with a first through hole through which the first piston rod 6 can pass. The inner wall of the first through hole is embedded with a sealing ring 23. The seal ring 23 is made of nitrile rubber. The sealing ring 23 is in sealing engagement with the first piston rod 6. The cylinder 15 is provided with a second through hole through which the second piston rod 21 can pass. The first piston rod 6 passes upwards through the guide hole. The upper end of the first piston rod 6 is provided with a connection hole 9. A first oil chamber 18 is formed between the first piston 16 and the upper end of the first piston chamber, a second oil chamber 19 is formed between the second piston 17 and the upper end of the second piston chamber, and the first oil chamber 18 and the second oil chamber 19 are connected through oil holes 20. The first oil chamber 18 and the second oil chamber 19 are filled with hydraulic oil. The wire clamp body 1 is provided with a cushion block 8, the lower end of the second piston rod 21 is provided with a pressing block 22, and the pressing block 22 is located right above the cushion block 8. The wire 2 is sandwiched between the spacer 8 and the press block 22. A clamping groove matched with the lead 2 is arranged on one side of the pressing block 22 close to the lead 2. The surface of the pockets are provided with friction pads 24. The friction pad 24 is made of rubber. The connecting hole is used for connecting a linear tower, the wire can apply downward pressure to the wire clamp body, so that the first piston rod moves upwards relative to the wire clamp body, the first piston is driven to move upwards, the volume of the first oil cavity is reduced after the first piston moves upwards, hydraulic oil in the first oil cavity enters the second oil cavity through the oil hole, the second piston and the second piston rod are pushed to move downwards, and the pressing plate is pushed to move downwards, so that the guide is pressed between the pressing plate and the cushion block, the auxiliary pressing effect is achieved on the guide, the wire is fixed, and the relative sliding between the wire and the suspension clamp is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a suspension clamp, includes the fastener body, fastener body bilateral symmetry is provided with the wire fixation clamp that is used for pressing from both sides tight wire, its characterized in that: the wire fixing clamp comprises a lower clamping block and an upper clamping block, a bolt is connected between the upper clamping block and the lower clamping block, the wire is clamped between the upper clamping block and the lower clamping block, and anti-skid grains are arranged on the surfaces of the upper clamping block and the lower clamping block, which are in contact with the wire; the bolt comprises a bolt head, an outer gear ring is arranged on the circumference of the bolt head, a sliding groove corresponding to the bolt head is formed in the upper surface of the upper clamping plate, a moving block capable of axially moving along the sliding groove is connected onto the sliding groove, a tooth groove matched with the outer gear ring is formed in one end, close to the bolt head, of the moving block, and a spring is arranged between one end, far away from the bolt head, of the moving block and the upper clamping plate.
2. The suspension clamp of claim 1, wherein the upper surface of the upper clamp block is provided with a boss corresponding to the moving block, and the spring is disposed between the moving block and the boss.
3. The suspension clamp of claim 1, wherein the end of the traveling block adjacent the bolt head is an inwardly concave arcuate surface.
4. The suspension clamp according to claim 1, wherein the clamp body is provided with an auxiliary clamping mechanism, the auxiliary clamping mechanism comprises a guide hole arranged on the clamp body, the guide hole is arranged along the vertical direction, a cylinder body is arranged at the lower end of the guide hole, a first piston cavity and a second piston cavity are arranged in the cylinder body, a first piston capable of moving along the vertical direction is arranged in the first piston cavity, a second piston capable of moving along the vertical direction is arranged in the second piston cavity, a first piston rod is arranged at the upper end of the first piston, a second piston rod is arranged at the lower end of the second piston, the first piston rod and the second piston rod are both arranged along the vertical direction, a first through hole capable of allowing the first piston rod to pass is arranged on the cylinder body, a second through hole capable of allowing the second piston rod to pass is arranged on the cylinder body, and the first piston rod passes through the guide hole upwards, the upper end of the first piston rod is provided with a connecting hole; a closed first oil chamber is formed between the first piston and the upper end of the first piston chamber, a closed second oil chamber is formed between the second piston and the upper end of the second piston chamber, the first oil chamber and the second oil chamber are connected through an oil hole, and hydraulic oil is filled between the first oil chamber and the second oil chamber; the wire clamp body is provided with a cushion block, the lower end of the second piston rod is provided with a pressing block, the pressing block is located right above the cushion block, and the wire is clamped between the cushion block and the pressing block.
5. A suspension clamp as claimed in claim 4, wherein a sealing ring is fitted in the inner wall of the first through-hole, the sealing ring being in sealing engagement with the first piston rod.
6. The suspension clamp of claim 4, wherein the press block includes a slot on a side thereof adjacent the conductor for engaging the conductor, and a friction pad on a surface of the slot.
7. A suspension clamp as claimed in claim 6, wherein the friction pad is made of rubber.
CN202010255088.7A 2020-04-02 2020-04-02 Suspension clamp Active CN111585234B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010255088.7A CN111585234B (en) 2020-04-02 2020-04-02 Suspension clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010255088.7A CN111585234B (en) 2020-04-02 2020-04-02 Suspension clamp

Publications (2)

Publication Number Publication Date
CN111585234A true CN111585234A (en) 2020-08-25
CN111585234B CN111585234B (en) 2021-11-09

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ID=72126133

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010255088.7A Active CN111585234B (en) 2020-04-02 2020-04-02 Suspension clamp

Country Status (1)

Country Link
CN (1) CN111585234B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB338304A (en) * 1929-10-12 1930-11-20 Electr & Allied Ind Res Ass Improvements relating to the mounting of suspended cables and particularly of overhead electrical transmission lines
DE4116506C1 (en) * 1991-05-21 1992-04-30 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart, De Suspension clamp for electric railway overhead line - is in identical halves cooperating to provide channels for power wire and carrier cable and narrowed together via clamping screw
CN203218837U (en) * 2013-05-10 2013-09-25 宁波华缘玻璃钢电器制造有限公司 Pendulous wire clamp
CN204441834U (en) * 2015-03-02 2015-07-01 安徽樵森电气科技有限公司 A kind of suspension clamp
CN208386084U (en) * 2018-03-27 2019-01-15 江苏金逸电力科技有限公司 A kind of self-locking type suspension clamp
CN209626905U (en) * 2019-01-16 2019-11-12 浙江中安电气有限公司 A kind of suspension clamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB338304A (en) * 1929-10-12 1930-11-20 Electr & Allied Ind Res Ass Improvements relating to the mounting of suspended cables and particularly of overhead electrical transmission lines
DE4116506C1 (en) * 1991-05-21 1992-04-30 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart, De Suspension clamp for electric railway overhead line - is in identical halves cooperating to provide channels for power wire and carrier cable and narrowed together via clamping screw
CN203218837U (en) * 2013-05-10 2013-09-25 宁波华缘玻璃钢电器制造有限公司 Pendulous wire clamp
CN204441834U (en) * 2015-03-02 2015-07-01 安徽樵森电气科技有限公司 A kind of suspension clamp
CN208386084U (en) * 2018-03-27 2019-01-15 江苏金逸电力科技有限公司 A kind of self-locking type suspension clamp
CN209626905U (en) * 2019-01-16 2019-11-12 浙江中安电气有限公司 A kind of suspension clamp

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Publication number Publication date
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