CN113809708B - Can provide conductor spacer fastener of bounce - Google Patents

Abstract

The invention discloses a spacer wire clamp capable of providing rebound force, which comprises a wire clamp body, a connecting plate and a wire clamp body, and is characterized in that: the wire clamp comprises a wire clamp body and is characterized by further comprising a spring, the periphery of the wire clamp body is fixedly connected with a connecting plate, the wire clamp body is arranged in the wire clamp body and is in clearance fit with the wire clamp body, the spring is arranged in an arc-shaped groove formed in the wire clamp body, one end of the spring is connected with the wire clamp body in an articulated mode, and the other end of the spring is connected with the wire clamp body in an articulated mode. When the wire twists, the wire clamp clip body rotates along with the wire, and the twisting characteristic of the spacer wire clamp is guaranteed. The rotation of the wire clamp body drives the connecting piece to rotate, so that the springs distributed on two sides of the connecting piece are compressed and stretched, and therefore rebound force is provided for the wire, and the wire is restored to the original position after the external force disappears. The invention realizes that a rebound force source is provided for the lead in the wire clamp of the spacer, and the torsion characteristic of the wire clamp is ensured, and the line can not be clamped due to rotation under the condition of normal operation.

Description

A spacer clamp capable of providing resilience

technical field

The invention belongs to protective equipment for overhead power transmission lines, in particular to a spacer clamp capable of providing rebound force.

Background technique

In the operation of overhead transmission lines, the wires are often subjected to torque. At present, there is a rotary clamp technology. The main purpose of this technology is to make the wires rotate when they are covered with ice, so as to prevent uneven icing of the wires. Also just prevented the galloping of wire. However, under the normal operation of the line, the wires are often twisted due to the wind load, and even in windy weather, the spacer bars will flip, and sometimes the wires still cannot return to their original state after the external force disappears.

The research on spacer clamps has gradually increased now, but the existing spacer clamps are either non-reversible, or can be reversed but cannot be restored to their original state after being twisted. For non-twistable spacer clamps, in windy weather and when jumping off ice, because the wire is subjected to torque, but the clamp is non-twistable, the twist of the wire will be directly transmitted to the spacer, which may easily cause the spacer to flip . For the spacer clamp that can be twisted but does not provide rebound force after twisting, such as CN200910236876.5, a four-bar mechanism with a fixed motion track is used to clamp the wire by the clamp chuck, and to realize free rotation with the center of the wire as the axis. Although this method prevents the problem of discontinuity or unsmoothness in the rotation process of the wire clamp, due to the large number of connecting components, this type of wire clamp is prone to damage and loss due to individual components in the long-term operation of the transmission line. its proper rotation characteristics.

There is also currently a relatively common spacer clamp with the torsion joint arranged near the clamp, such as CN200820108710.6, which adopts a double-layer structure in which the clamp body is separated from the body, and the rotation joint is composed of the body frame and the clamp body, so that Although the torsion characteristics of the clamp are guaranteed, there is no measure to limit the rotation angle of the wire in the spacer wire chuck. Since the wire can rotate freely at an infinite angle, it is easy to cause the wire to be damaged when the torque it bears is too large. Fatigue damage to the conductors, severe cases will cause disconnection accidents, and because there are baffles on both sides of the clamp body, although it can reduce the axial displacement of the clamp body, the distance between the clamp body and the baffle The large contact area may hinder the rotation of the internal clamp body, which may easily cause unsmooth and discontinuous rotation. And the spacer rotary clamp CN201010207171.3, which also adopts the separation structure of the clamp body and the main body, has measures to limit the infinite angle rotation of the wire because it is provided with an arc-shaped slide rail with a fixed central angle, and the set rotary joint It is composed of a slider and a slide rail. Compared with the split structure of the body and the cover plate, this method will make the rotation relatively smooth. The above three kinds of spacer clips are all twistable, although the uneven icing of the wires is reduced, but in normal operation, because the wires will rotate, the above clips do not provide a rebound force for the wires , After the external force disappears, the wire can easily fail to return to its original state, so it must be manually processed to restore, which affects the reliability of the line operation. It is obviously impractical to add a device that provides a source of rebound force for the wires in the above-mentioned several structures. Therefore, it is very necessary to invent a kind of spacer clamp different from the past, which can ensure the torsional characteristics of the clamp and prevent the circuit from being stuck due to rotation under normal operation.

To sum up, in windy weather and when jumping off the ice, it is easy for the spacer to overturn and twist the wire, thereby damaging the wire, and sometimes the wire cannot return to its original shape after the external force disappears. Therefore, in order to solve the above problems, the most important thing is to make it able to provide a source of rebound force for the wire while ensuring the torsion characteristics of the wire clip. When the wire is twisted, the rebound force provided by the wire clip can prevent the spacer from Flip over and let the wire return to its original shape after the external force is removed. Therefore, in combination with the above comparative examples about the spacer clamp, it is necessary to study a spacer clamp with simple connecting components and capable of providing rebound force.

Contents of the invention

The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art, to provide a spacer clamp that can provide rebound force, which can not only ensure the torsional characteristics of the spacer clamp, but also make the line It will not be stuck due to rotation, and it can also prevent the spacer from turning over and the wire from twisting, effectively reducing the galloping of the wire, and allowing the wire to return to its original shape after the external force disappears. At the same time, the structure is simple, the installation is easy, and the cost is low. By setting a spring between the wire clip body and the wire clip body, the technical effect of providing a rebound force source for the wire when the wire is twisted is achieved.

The technical solution adopted by the present invention to solve the technical problem is: a spacer clamp capable of providing rebound force, which includes a clamp body, a connecting plate and a clamp body, and is characterized in that it also includes a spring, and the clamp body The outer periphery of the clamp is fixedly connected with the connecting plate, the clamp body is placed in the clamp body and fits in a gap, the spring is placed in the arc-shaped groove provided by the clamp body, and one end of the spring is hooked to the clamp body. The other end is hooked with the clip body of the wire clamp, and the connecting plate is fixedly connected with the spacer bar.

Further, a rubber pad is arranged in the clamp body of the spacer bar clamp and fixedly connected, and the wire is clamped through the rubber pad.

Further, the clamp body includes a first body, a second body and a shaft, the first body is opposite to the second body, and the first end of the first body passes through the first end of the second body. The shaft rods are fixedly connected to form a cylindrical clamp body.

Further, the first end of the first body is provided with two first lugs up and down, the second end is a plane, and the two first lugs are provided with coaxial through holes whose axes are parallel to the axis of the first body. A first arc-shaped groove with an opening facing the center of the circle is provided, and U-shaped hanging rings are respectively arranged at both ends of the first arc-shaped groove.

Further, the first end of the second body is provided with a second lug, the second end is a plane, the second lug is provided with a through hole whose axis is parallel to the axis of the second body, and a second lug with an opening facing the center of the circle is provided on the second body. Two arc-shaped grooves, the two ends of the second arc-shaped groove are respectively provided with U-shaped hanging rings, the second body is opposite to the first body, and the second lug at the first end of the second body extends into the first Between the two first lugs at the first end of the body, the shaft rod is simultaneously inserted into the coaxial through hole provided by the two first lugs and the through hole provided by the second lug, so that the first body The clamp body is fixedly connected to the second body as a circular cylindrical shape, and the first arc-shaped groove of the first body corresponds to the second arc-shaped groove of the second body to form an arc-shaped concave of the clamp body. groove.

Further, the clip body is composed of a first clip body and a second clip body, the first clip body is a semi-circular cylinder, and a connecting piece fixedly connected as a whole is arranged on the outer peripheral cylinder of the first clip body , the two U-shaped hanging rings are respectively placed on both sides of the connecting piece and fixedly connected, the structure of the second clip body is the same as that of the first clip body, the first clip body is placed in the first body, and the second clip body is placed in the first body. The outer peripheral surface of a clip is in contact with the inner peripheral surface of the first body, and the connecting piece of the first clip extends into the first arc-shaped groove of the first body and fits with clearance, thereby separating the first arc-shaped groove into The first cavity and the second cavity, the second clip body is recessed and placed in the second body opposite to the first clip body, the outer peripheral surface of the second clip is in contact with the inner peripheral surface of the second body, and the second clip body The connecting piece protrudes into the second arc-shaped groove of the second body and has clearance fit, thereby dividing the second arc-shaped groove into a third cavity and a fourth cavity.

Further, there are four springs, and the four springs are respectively placed in the first cavity, the second cavity, the third cavity and the fourth cavity, and one end of the spring is hooked to the On the U-shaped hanging ring provided with an arc-shaped groove or the second arc-shaped groove, the other end of the spring is hung on the connecting piece of the first clip body or the U-shaped hanging ring provided by the connecting piece of the second clip body superior.

The beneficial effects of the present invention are reflected in:

1. In the spacer clamp of the present invention, since the connecting piece outside the clamp body is arranged in the arc-shaped groove inside the clamp body and fits with the gap, the torsional characteristics of the overall structure are ensured, and eccentric icing can be effectively reduced Uneven icing caused by aggravation, thereby reducing wire galloping;

2. In the spacer clamp of the present invention, the arc-shaped groove in the clamp body restricts the axial movement of the connecting piece outside the clamp body. The advantage of this is that the axial displacement of the clamp body will not Too large prevents the clip body from being separated from the clip body, thereby ensuring the reliability of the overall structure;

3. In the spacer clamp of the present invention, since the clamp body and the clamp body are connected by a spring, when the sub-conductor is twisted, the springs on both sides of the connecting piece of the clamp body will appear on one side. The phenomenon of compression on one side of stretching, so the stretchability of the spring will provide a source of rebound force for the wire, so that the wire can return to its original state after the external force disappears, replacing the manual processing process.

4. The spacer bar clamp of the present invention, due to the existence of the rotating device, so when the wire just bears the torque, the wire clamp will rotate first, so the rotation of the wire will not cause the frame of the spacer bar to rotate at the beginning, which can Effectively prevent the overturning of the spacer bar.

5. The device can ensure the stable operation of the transmission line, and has a simple structure, low cost and remarkable effect.

Description of drawings

Fig. 1 is the overall structure schematic diagram that the present invention can provide the spacer clamp of rebounding force;

Fig. 2 is a schematic diagram of the first body structure of the spacer clamp capable of providing rebound force in the present invention;

Fig. 3 is a schematic diagram of the second body structure of the spacer clamp capable of providing resilience in the present invention;

Fig. 4 is a schematic view of the structure of the clip body of the spacer clip that can provide rebound force in the present invention;

FIG. 5 is a schematic cross-sectional view of the spacer clamp capable of providing rebound force according to the present invention.

In the figure: 1 first body, 2 second body, 3 first clip body, 4 second clip body, 5 connecting piece, 6 spring, 7 rubber pad, 8 U-shaped hanging ring, 9 shaft rod, 10 bolt, 11 connection Plate, 12 connecting part, 13 clamping part, 14 connecting piece, 15 first arc-shaped groove, 16 first lug, 17 second lug, 18 second arc-shaped groove, 19 first rubber pad , 20 second rubber pads.

detailed description

The present invention will be further completely and clearly described below in conjunction with the accompanying drawings and embodiments. The embodiments are part of the embodiments of the application of the invention, not all embodiments. Based on the embodiments of the present invention, those skilled in the art will The duplication and improvement of labor should belong to the protection scope of the claims of the present invention.

With reference to Fig. 1-5, present embodiment a kind of spacer clamp that can provide resilience, it comprises clamp body, connecting plate 11 and clamp clamp body, also comprises spring 6, and the periphery of described clamp body is connected with The plate 11 is fixedly connected, the clip body is placed in the clip body and fits in a gap, the spring 6 is placed in the arc-shaped groove provided by the clip body, one end of the spring 6 is hooked to the clip body, and the other One end is articulated with the clip body of the wire clamp, and the connecting plate 11 is fixedly connected with the spacer bar.

The clamp body includes a first body 1, a second body 2 and a shaft 9, the first body 1 is opposite to the second body 2, and the first end of the first body 1 is connected to the second body 2. The first end of the first end is fixedly connected by the shaft rod 9 to form a ring-shaped clamp body.

The first end of the first body 1 is provided with two first lugs 16 up and down, and the second end is a plane. The two first lugs 16 are provided with coaxial through holes whose axes are parallel to the axis of the first body 1 . A body 1 is provided with a first arc-shaped groove 15 with an opening facing the center of the circle, and U-shaped hanging rings 8 are arranged at both ends of the first arc-shaped groove 15 .

The first end of the second body 2 is provided with a second lug 17, the second end is a plane, the second lug 17 is provided with a through hole whose axis is parallel to the axis of the second body 2, and the second body 2 is provided with an opening facing The second arc-shaped groove 18 at the center of the circle, the two ends of the second arc-shaped groove 18 are respectively provided with U-shaped hanging rings 8, the second body 2 is concavely opposite to the first body 1, and the first end of the second body 2 The second lug 17 of the first body 1 extends between the two first lugs 16 at the first end of the first body 1, and the shaft 9 is simultaneously fitted through the coaxial through hole provided on the two first lugs 16 and the second lug. In the through hole provided by the two lugs 17, the first body 1 and the second body 2 are fixedly connected into a ring-shaped clamp body, and the first arc-shaped groove 15 of the first body 1 is connected to the second body. The second arc-shaped groove 18 of the body 2 corresponds to the arc-shaped groove of the cable clip body.

The clamp body is composed of a first clamp body 3 and a second clamp body 4, the first clamp body 3 is a semi-circular cylinder, and the outer peripheral cylinder of the first clamp body 3 is fixedly connected as a whole. The connecting piece 5 and the two U-shaped hanging rings 8 are respectively placed on both sides of the connecting piece 5 and fixedly connected. The second clamping body 4 has the same structure as the first clamping body 3, and the first clamping body 3 Placed in the first body 1, the outer peripheral surface of the first clip body 3 is in contact with the inner peripheral surface of the first body 1, and the connecting piece 5 of the first clip body 3 extends into the first arc-shaped groove 15 of the first body 1 And clearance fit, so that the first arc-shaped groove 15 is divided into the first cavity and the second cavity, the second clip body 4 is recessed and placed in the second body 2 opposite to the first clip body 3, and the first clip body 2 The outer peripheral surface of the second clip body 4 is in contact with the inner peripheral surface of the second body 2, and the connecting piece 14 of the second clip body 4 extends into the second arc-shaped groove 18 of the second body 2 and fits with clearance, so that the second round The arc-shaped groove 18 is divided into a third cavity and a fourth cavity.

There are four springs 6, and the four springs 6 are respectively placed in the first cavity, the second cavity, the third cavity and the fourth cavity, and one end of the spring 6 is hung on the On the U-shaped hanging ring 8 provided with the first arc-shaped groove 15 or the second arc-shaped groove 18, the other end of the spring 6 is hung on the connecting piece 5 of the first clip body 3 or the second clip body 4. On the U-shaped hanging ring 8 that the connecting piece 14 is provided with.

A rubber pad 7 is arranged in the wire clip clamp body of the spacer bar clamp and fixedly connected, and the wire passes through the rubber pad 7 to be clamped.

Described rubber pad 7 is made up of first rubber pad 19 and second rubber pad 20, and described first rubber pad 19 and described second rubber pad 20 are semicircular rings, and first rubber pad 19 is placed on the first The inner peripheral surface of the clip body 3 is fixedly connected, and the second rubber pad 20 is placed on the inner peripheral surface of the second clip body 4 and fixedly connected.

The connecting plate 11 is provided with a connecting portion 12 and a clamping portion 13, and the connecting portion 12 end of the connecting plate 11 is fixedly connected with the outer periphery of the second body 2 of the clamp body, and the end of the clamping portion 13 of the connecting plate 11 is connected to the outer periphery of the second body 2 of the clamp body. The outer periphery of the first body 1 of the clamp body is fixedly connected, and the connecting part 12 and the clamping part 13 provided by the connecting plate 11 are fixedly connected by bolts 10, so that the second end of the second body 2 is connected to the second end of the first body 1. The end is fixed.

The present invention can provide the installation method of the spacer clamp of the rebound force: the spacer clamp will be installed on the spacer frame used for the split wire of the transmission line. and the bolt 10 of the second body 2 are unscrewed, so that the first body 1 can be rotated around the shaft 9 to open, since the clamp body has been connected with the clamp body through the U-shaped hanging ring 8 and the spring 6, so as long as the The wires to be clamped are placed inside the clip body, and then the first body 1 is fastened to the second body 2 and connected with bolts 10 .

The working process of the spacer wire clip that can provide rebound force of the present invention is: when the wire of the power transmission line is twisted, the wire clip body will rotate with the wire due to the friction between the rubber pad 7 and the wire, ensuring that the wire The torsional characteristics of the clamp effectively reduce the uneven icing caused by the eccentric icing of the wires, thereby reducing the galloping of the wires and effectively preventing the spacer frame from turning over. The rotation of the clip body will drive the connecting piece 5 and the connecting piece 14 arranged outside it to rotate, and the rotation of the connecting piece 5 and the connecting piece 14 will cause one side of the spring 6 arranged on both sides to compress, and one side will compress. Stretching, so as to provide a source of rebound force for the wire, so that the wire can return to its original position after the external force disappears, realizing the automatic reset of the wire. In addition, the arc-shaped groove inside the clamp body restricts the axial movement of the connecting piece 5 or connecting piece 14 outside the clamp body, which has the advantage that the axial displacement of the clamp body will not be too large, It prevents the clip body from being separated from the clip body, thereby ensuring the durability and reliability of the overall structure, so that it will not easily lose its proper rotation characteristics. One side of the clamp body is connected with a shaft rod 9, and one side is connected with a bolt 10, and the clamp body is fixedly connected with the connecting plate 11. The connecting plate 11 is provided with holes for bolts 10, which are used to connect with the frame of the spacer bar. Such a design can not only make the spacer bar clamp capable of providing rebound force of the present invention firmly connected with the spacer bar frame, but also facilitate disassembly and maintenance, and has the advantages of reasonable structure, low cost, convenient installation, and superior performance.

The specific embodiment is only the preferred mode of the present invention, and it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (2)

1. A spacer wire clamp capable of providing rebound force comprises a wire clamp body, a connecting plate, a wire clamp body and four springs, wherein the periphery of the wire clamp body is fixedly connected with the connecting plate, the wire clamp body is arranged in the wire clamp body and is in clearance fit with the wire clamp body, the connecting plate is fixedly connected with the spacer, a rubber pad is arranged in the wire clamp body and is fixedly connected with the wire clamp body, a lead passes through the rubber pad to be clamped, the wire clamp body comprises a first body, a second body and a shaft lever, a groove of the first body is opposite to a groove of the second body, a first end of the first body is fixedly connected with a first end of the second body through the shaft lever to form a circular cylindrical wire clamp body, a first circular arc-shaped groove with an opening facing to the circle center is arranged on the first body, two ends of the first circular arc-shaped groove are respectively provided with a U-shaped hanging ring, a second circular arc-shaped groove with an opening facing to the circle center is arranged on the second body, two ends of the second circular arc-shaped groove are respectively provided with a U-shaped hanging ring, the first arc-shaped groove of the first body and the second arc-shaped groove of the second body correspond to form an arc-shaped groove of the wire clamp body, the wire clamp body consists of a first clamp body and a second clamp body, the first clamp body is a semicircular ring cylinder, a connecting sheet fixedly connected into a whole is arranged on the outer cylindrical surface of the first clamp body, two U-shaped hanging rings are respectively arranged on two sides of the connecting sheet and fixedly connected, the second clamp body and the first clamp body have the same structure, the first clamp body is arranged in the first body, the outer circumferential surface of the first clamp body is contacted with the inner circumferential surface of the first body, the connecting sheet of the first clamp body extends into the first arc-shaped groove of the first body and is in clearance fit, so that the first arc-shaped groove is divided into a first containing cavity and a second containing cavity, the second clamp body is arranged in the second body, the outer circumferential surface of the second clamp body is contacted with the inner circumferential surface of the second body, the connecting piece of the second clamp body extends into the second arc-shaped groove of the second body and is in clearance fit with the second arc-shaped groove, so that the second arc-shaped groove is divided into a third containing cavity and a fourth containing cavity, the four springs are respectively arranged in the first containing cavity, the second containing cavity, the third containing cavity and the fourth containing cavity, one end of each spring is hung on the U-shaped hanging ring arranged in the first arc-shaped groove or the second arc-shaped groove, and the other end of each spring is hung on the connecting piece of the first clamp body or the U-shaped hanging ring arranged in the connecting piece of the second clamp body.

2. The spacer clip capable of providing a spring force of claim 1, wherein: the wire clamp comprises a first body, a second body and a shaft rod, wherein the first end of the first body is provided with two first lugs vertically, the second end of the first body is a plane, the two first lugs are provided with coaxial through holes with axes parallel to the axes of the first body, the first end of the second body is provided with one second lug, the second end of the second body is a plane, the second lug is provided with through holes with axes parallel to the axes of the second body, the grooves of the second body are opposite to the grooves of the first body, the second lug at the first end of the second body extends into the space between the two first lugs at the first end of the first body, and the shaft rod is simultaneously inserted into the coaxial through holes arranged on the two first lugs and the through holes arranged on the second lug, so that the first body and the second body are fixedly connected into a circular column type wire clamp body.

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