Conductor damping spacer

Abstract

The utility model relates to cable accessory technical field, concretely is a kind of wire damping spacer, including frame, and the corner point of frame is equipped with wire clamp, and wire clamp includes the gland and wire clamp body of being hinged;Wire clamp body is equipped with recess, and the projection is equipped on gland, and the projection is embedded into recess and realizes hinging;The width of recess and projection is matched, and the groove bottom of recess is inclined plane, and the depth of recess outer surface and inner surface depth all exceed projection height setting range, and outer surface depth exceeds inner surface depth.The structure relationship design between projection and recess makes the angle range of gland around wire clamp body opening be improved, when gland accidentally opens due to abrasion, wire can be completely separated from spacer from the gland of opening, continue to reduce the probability of abrasion between wire and gland as far as possible, prevent wire from further abrasion.

Description

Technical Field

[0001] This utility model relates to the field of cable accessories technology, specifically a conductor damping spacer. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] During the operation of overhead cables, it is necessary to ensure that the cables (conductors) do not collide or entangle with each other. This is usually achieved by using spacers to separate them. The spacers are fixed to the conductors by clamps. For ease of installation, the clamps are designed with a pressure cap that rotates around a pin. The area enclosed by the pressure cap and the clamp body holds the conductor tightly. In order to ensure friction and reduce vibration, damping pads (commonly known as rubber pads) are installed in the enclosed area.

[0004] In areas with severe wind vibration, the spacer bar is subjected to alternating wind loads over a long period. Combined with the effects of low temperatures, the rubber pads inside the clamp shrink, reducing the clamping force on the conductor. This causes friction between the clamp hole and the conductor, leading to wear and eventually causing the clamp cap to detach from the pivot pin. When the cap is detached, the spacer bar is separated from the conductor and no longer functions. If the opening between the cap and the clamp body is too small, the conductor cannot completely detach from the open cap, and relative movement between the conductor and the cap will further exacerbate conductor wear, ultimately causing conductor breakage and a power outage. Utility Model Content

[0005] To address the technical problems mentioned above, this utility model provides a wire damping spacer. The protrusions and grooves of the hinged portion of the cover and the clamp body have a set proportional range, which increases the angle range when the cover is opened around the clamp body, allowing the wire to completely detach from the spacer from the opened cover and preventing aggravated wear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a conductor damping spacer, including a frame, with wire clamps at the corners of the frame. The wire clamps include a cap and a clamp body that are hinged together. The clamp body has a groove, and the cap has a protrusion. The protrusion is embedded in the groove to achieve hinge. The width of the groove matches the width of the protrusion. The bottom of the groove is a slope. The depth of the outer surface and the depth of the inner surface of the groove both exceed the height setting range of the protrusion, and the depth of the outer surface exceeds the depth of the inner surface.

[0008] Furthermore, the clamp body includes a first clamping opening and a clamping base connected to both ends of the first clamping arm. The first clamping opening is provided with a first hinge hole, the bottom of the first clamping opening is provided with a first fixing hole, the first clamping arm is provided with a locking hole, and the clamping base is provided with a connector, which is provided with a connecting hole.

[0009] Furthermore, the pressure cap includes a second clamping jaw and a wire clamping tongue connected to both ends of the second clamping arm. The second clamping jaw is provided with a second hinge hole, and the bottom of the second clamping jaw is provided with a second fixing hole.

[0010] Furthermore, the area enclosed by the first and second clamps forms a space for clamping the wire. In the clamped state, the wire clamp tongue on the cover extends into the first clamp arm of the wire clamp body.

[0011] Furthermore, in the clamped state, the wire clamp tongue on the pressure cap is located in the space between the locking hole and the inner wall of the first clamping arm. The locking member inserted into the locking hole achieves the locking between the wire clamp body and the pressure cap.

[0012] Furthermore, the groove is located on the first clamping opening, and the protrusion is located on the second clamping opening.

[0013] Furthermore, the groove is provided with a first hinge hole, and the protrusion is provided with a second hinge hole; after the clamp body and the pressure cap are closed, the first hinge hole and the second hinge hole are aligned, and the hinge is achieved after the hinge piece is inserted.

[0014] Furthermore, the wire clamp seat is equipped with a cross shaft, which passes through the wire clamp seat and is connected to the frame. Multiple damping rods are provided in the space between the cross shaft and the inner wall of the wire clamp seat. After the connecting pin passes through the connecting hole and the hole on the frame, the wire clamp body is connected to the frame.

[0015] Furthermore, it also has a damping pad, which passes through the first fixing hole and the second fixing hole through corresponding fasteners. After the clamp body and the pressure cap are enclosed, the damping pad is attached to the wire.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. The groove bottom is sloped, with two parameters: outer surface depth and inner surface depth. Both depth parameters exceed the set range for the protrusion height, and the outer surface depth exceeds the inner surface depth. This significantly reduces the obstruction of the outer surface area of ​​the groove to the protrusion when the cap is opened. This allows for the largest possible opening angle when the wire clamp accidentally detaches, exceeding that of conventional products. Even if the cap accidentally opens due to wear, the wire can completely detach from the open cap, minimizing the probability of further wear between the wire and the cap and preventing further abrasion. Simultaneously, the open wire clamp is a more visible target, making it easier for staff to quickly identify detached wire clamps during inspections.

[0018] 2. After the clamp body and the pressure cap are closed, they are fixed to the conductor. The vibration of the conductor caused by wind load drives the clamp body to move, which in turn causes relative movement between the clamp body and the cross shaft. This squeezes the damping rod, reducing the vibration energy ultimately transmitted to the frame. The cross shaft guides and restricts the deformation direction of the damping rod. After the damping rod absorbs the vibration energy, relative movement between the clamp body and the frame is allowed within a relatively small range, preventing the connection between the clamp body and the frame from bearing excessive vibration load. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of the conductor damping spacer provided by this utility model;

[0021] Figure 2 This is a side view of the main body of the wire damping spacer provided by this utility model.

[0022] Figure 3 This is a schematic diagram of the main structure of the wire clamp body in the conductor damping spacer provided by this utility model;

[0023] Figure 4 This is a side view of the pressure cap in the conductor damping spacer provided by this utility model;

[0024] Figure 5 This is a schematic diagram of the main structure of the pressure cap in the conductor damping spacer provided by this utility model;

[0025] Figure 6 This is a schematic diagram of the mating structure of the wire damping spacer bar body and the pressure cap provided by this utility model;

[0026] Figure 7 This is a schematic diagram of the damping tile in the conductor damping spacer provided by this utility model.

[0027] Figure 1 In the middle: 1-frame, 2-clip body, 3-pressure cap, 4-cross shaft, 5-damping rod, 6-damping tile;

[0028] Figures 2-3 In the middle: 20-groove, 21-first clamping opening, 22-first clamping arm, 23-line clamp base, 24-first hinge hole, 25-first fixing hole, 26-locking hole, 27-connecting hole, 271-connecting pin;

[0029] Figures 4-5In the middle: 30-protrusion, 31-second clamping mouth, 32-second clamping arm, 33-line clamping tongue, 34-second hinge hole, 35-second fixing hole, 36-transition zone. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] A spacer is a device used in overhead transmission lines, mainly used to separate multiple conductors (such as split conductors) and suppress conductor vibration. Common spacers are mainly four-split, six-split, and eight-split. This embodiment takes a four-split spacer as an example.

[0033] The following embodiment provides a wire damping spacer bar. The protrusions and grooves of the hinged part of the cover and the clamp body have a set proportional range, which increases the angle range when the cover is opened around the clamp body, so that the wire can be completely separated from the spacer bar from the opened cover, avoiding aggravated wear.

[0034] like Figure 1 As shown, a conductor damping spacer includes a frame 1, with wire clamps at the four corners of the frame 1. Each wire clamp includes a hinged wire clamp body 2 and a pressure cap 3.

[0035] like Figure 2 and Figure 3 As shown, the wire clamp body 2 includes a first clamping opening 21 and a wire clamp base 23 connected to both ends of the first clamping arm 22. The first clamping opening 21 is provided with a first hinge hole 24, and the bottom of the first clamping opening 21 is provided with a first fixing hole 25. The first clamping arm 22 is provided with a locking hole 26, and the wire clamp base 23 is provided with a connector, and the connector is provided with a connecting hole 27.

[0036] In this embodiment, the first hinge hole 24 is located at the distal end of the first clamping opening 21, and the proximal end of the first clamping opening 21 is connected to the first clamping arm 22.

[0037] like Figure 4 and Figure 5 As shown, the pressure cap 3 includes a second clamping opening 31 and a wire clamping tongue 33 connected to both ends of the second clamping arm 32. The second clamping opening 31 is provided with a second hinge hole 34, and the bottom of the second clamping opening 31 is provided with a second fixing hole 35.

[0038] In this embodiment, the second hinge hole 34 is located at the distal end of the second clamping opening 31, and the proximal end of the second clamping opening 31 is connected to the second clamping arm 32.

[0039] The structure after the clamp body 2 and the pressure cap 3 are enclosed is as follows: Figure 6 As shown, the area enclosed by the first clamp 21 and the second clamp 31 forms a space for clamping the wire. After enclosing, the wire clamp tongue 33 on the pressure cover 3 extends into the first clamp arm 22 of the wire clamp body 2 and is blocked by the locking member that passes through the locking hole 26, thereby locking the wire clamp body 2 and the pressure cover 3 to prevent accidental opening or opening due to excessive wear.

[0040] The locking element inserted into the locking hole 26 can be a rigid locking element or a flexible locking element. In order to make the spacer better absorb the vibration from the conductor, a flexible locking element can be selected. For example, a rubber rod can be used as a flexible locking element and inserted into the locking hole 26.

[0041] After the clamp body 2 and the pressure cap 3 are enclosed, the axes of the first hinge hole 24 and the second hinge hole 34 coincide, and the hinge is achieved after the hinge is inserted. The inserted hinge can be a rigid fastener or a flexible hinge. In order to make the clamp body 2 and the pressure cap 3 rotate smoothly, a rigid hinge can be selected, such as a metal shaft as a rigid hinge.

[0042] Both the first fixing hole 25 and the second fixing hole 35 are used to connect the damping pad 6. After the clamp body 2 and the pressure cap 3 are closed, the damping pad 6 is directly attached to the wire to improve the clamping force of the clamp on the wire. The damping pad 6 can be made of rubber.

[0043] Damper 6 has a saddle-shaped outward-flared structure, such as Figure 7 As shown, the device includes two sets of identical saddle-shaped damping pad bodies. Each damping pad body has protrusions at both ends, with the protrusions higher than the surface of the damping pad body. The saddle-shaped damping pad body fits against the inner wall of the clamp in the clamp body 2 and the cover 3. The protrusions can hold the edge area of ​​the clamp, making it difficult for the damping pad 6 to come out of the clamp along the axial direction of the wire, thus preventing the damping pad 6 from coming out of the clamp along with the wire due to friction.

[0044] like Figures 1-3 As shown, in the wire clamp body 2, the wire clamp seat 23 is provided with a cross shaft 4. The cross shaft 4 passes through the wire clamp seat 23 and is connected to the frame 1. Multiple damping rods 5 are provided in the space between the cross shaft 4 and the inner wall of the wire clamp seat 23. After the connecting pin 271 passes through the connecting hole 27 and the hole on the frame 1, the wire clamp body 2 is connected to the frame 1.

[0045] In this embodiment, the damping rod 5 can be a rubber rod.

[0046] In this embodiment, the hole on the frame 1 for connecting the clamp body 2 can be an elliptical hole.

[0047] In this structure, the clamp body 2 and the pressure cap 3 are fixed to the conductor after being enclosed. The vibration of the conductor caused by wind load drives the clamp body 2 to move, which in turn causes relative movement between the clamp body 2 and the cross shaft 4, thereby squeezing the damping rod 5. This reduces the vibration energy ultimately transmitted to the frame 1. The cross shaft 4 is used to guide and limit the deformation direction of the damping rod 5. The hole on the frame 1 for connecting the clamp body 2 is an elliptical hole, which provides a certain amount of movement margin between the clamp body 2 and the frame 1. This allows the clamp body 2 to move relative to the frame 1 within a relatively small range after absorbing vibration energy with the damping rod 5, preventing the connecting pin 271 from bearing excessive vibration.

[0048] The clamp body 2 and the pressure cap 3 are hinged together by a portion with matching protrusions and grooves, such as... Figures 2-3 As shown, the first clamping opening 21 is provided with a groove 20, and the first hinge hole 24 passes through the groove 20; as Figures 4-5 As shown, the second clamping opening 31 is provided with a protrusion 30, and the second hinge hole 34 passes through the protrusion 30.

[0049] After the clamp body 2 and the pressure cap 3 are closed, the protrusion 30 is embedded in the groove 20, aligning the first hinge hole 24 and the second hinge hole 34. The hinge member passes through the first hinge hole 24 and the second hinge hole 34 to achieve hinge. The hinge member is equipped with a spring (for example, a disc spring; the spring is compressed when the clamp body 2 and the pressure cap 3 are closed, and released when the clamp body 2 and the pressure cap 3 are opened, ensuring that the clamp body 2 and the pressure cap 3 can open to their limit angle).

[0050] The groove 20 and the protrusion 30 are matched in width. The bottom of the groove 20 is a slope. The depth of the groove 20 exceeds the height setting range of the protrusion 30, so that the opening angle of the pressure cap 3 and the wire clamp body 2 is greater than 200°.

[0051] Since the bottom of the groove 20 is a slope, the depth includes two parameters: the outer surface depth and the inner surface depth. Both the outer surface depth and the inner surface depth exceed the height of the protrusion 30 by at least 20-50%, and the outer surface depth exceeds the inner surface depth. For example, taking the 450 / 400A spacer model as an example, the height of the protrusion 30 X=22mm, then the corresponding depth Y1 at the outer surface of the groove 20 is X (1+50%), and the depth Y2 at the inner surface is X (1+20%).

[0052] The groove bottom is sloping and exceeds the height setting range of the protrusion by 30, which is more conducive to reducing the obstruction of the protrusion by the outer surface of the groove when the pressure cap is opened. This allows the clamp to obtain the largest possible opening angle when it accidentally comes off, ensuring that the wire can be released from the opened clamp, avoiding the wire being worn by the clamp, and making it easier for staff to quickly find the clamp that has come off.

[0053] like Figure 4 As shown, a transition zone 36 is provided between the second clamp 31 and the second clamp arm 32. During the processing of the pressure cap 3, the transition zone 36 is rounded to allow the wire to be more easily released from the open second clamp 31, minimizing damage to the wire from the sharp parts between the second clamp 31 and the second clamp arm 32. Combined with the saddle-shaped outward-flaring damping pad 6, the damping pad will not fall off even when the clamp is open. The wire contacts the elastic pad, further reducing the risk of wear and breakage.

[0054] As described in the background section, the wire clamp is prone to frictional wear between the clamping hole and the wire due to wire vibration, causing the cover to open. If the opening angle of the cover is too small, the wire cannot completely detach from the open cover. As vibration continues, wire wear will be further aggravated, eventually leading to wire breakage and power outage. However, when the depth of the groove 20 exceeds the height setting range of the protrusion 30, the limit angle range of the cover 3 opening will be greatly increased, allowing the opening angle between the cover 3 and the wire clamp body 2 to be greater than 200°, for example, up to 270°. Even if the cover 3 opens due to wear, the wire will completely detach from the open cover, minimizing the probability of further wear with the cover.

[0055] When the clamping hole of the wire clamp wears due to the vibration of the wire, the wear will cause the damping pad to be consumed, resulting in an increase in the diameter of the clamping hole. As the wear intensifies, the relative movement between the wire and the damping pad will gradually increase. This relative movement is transmitted to the pressure cap, the wire clamp body, and the locking element in the form of vibration. As the vibration continues, the locking element will reach its material limit and break first, causing the pressure cap to disengage and open. The spring in the hinged part pushes the pressure cap as far away from the wire clamp body as possible, allowing the wire to disengage from the opened pressure cap. Since the opening angle of the pressure cap 3 and the wire clamp body 2 is greater than 200°, the wire can completely disengage from the opened pressure cap, preventing further relative movement between the wire and the pressure cap and the wire clamp body, thereby avoiding wire breakage accidents caused by secondary wear and solving the problems existing in the prior art.

[0056] At the same time, when the gland is open due to wear, it is a larger target and easier for inspection staff to spot, thus allowing for timely repairs.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A conductor damping spacer, comprising a frame, with wire clamps provided at the corners of the frame, the wire clamps comprising hinged caps and wire clamp bodies, characterized in that, The clamp body has a groove, and the cover has a protrusion. The protrusion is embedded in the groove to achieve hinge. The width of the groove and the protrusion are matched. The bottom of the groove is a slope. The depth of the outer surface and the depth of the inner surface of the groove both exceed the height setting range of the protrusion, and the depth of the outer surface exceeds the depth of the inner surface.

2. The conductor damping spacer as described in claim 1, characterized in that, The clamp body includes a first clamping opening and a clamping base connected to both ends of the first clamping arm. The first clamping opening is provided with a first hinge hole, and the bottom of the first clamping opening is provided with a first fixing hole. The first clamping arm is provided with a locking hole, and the clamping base is provided with a connector, which is provided with a connecting hole.

3. A conductor damping spacer as described in claim 2, characterized in that, The pressure cap includes a second clamp and a wire clamp tongue connected to both ends of the second clamp arm. The second clamp is provided with a second hinge hole and a second fixing hole at the bottom of the second clamp.

4. A conductor damping spacer as described in claim 3, characterized in that, The area enclosed by the first and second clamps forms a space for clamping the wire. In the clamped state, the wire clamp tongue on the cover extends into the first clamp arm of the wire clamp body.

5. A conductor damping spacer as described in claim 3, characterized in that, In the clamped state, the wire clamp tongue on the pressure cap is located in the space between the locking hole and the inner wall of the first clamp arm. The locking member inserted into the locking hole achieves the locking between the wire clamp body and the pressure cap.

6. A conductor damping spacer as described in claim 2, characterized in that, The wire clamp seat is equipped with a cross shaft, which passes through the wire clamp seat and is connected to the frame. Multiple damping rods are provided in the space between the cross shaft and the inner wall of the wire clamp seat. After the connecting pin passes through the connecting hole and the hole on the frame, the wire clamp body is connected to the frame.

7. A conductor damping spacer as described in claim 1, characterized in that, The groove is located on the first clamp, and the protrusion is located on the second clamp.

8. A conductor damping spacer as described in claim 1, characterized in that, The groove is provided with a first hinge hole, and the protrusion is provided with a second hinge hole.

9. A conductor damping spacer as described in claim 8, characterized in that, After the clamp body and the pressure cap are closed, the first hinge hole and the second hinge hole are aligned, and the hinge is achieved after the hinge piece is inserted.

10. A conductor damping spacer as described in claim 1, characterized in that, It also has a damping pad, which passes through the first fixing hole and the second fixing hole through the corresponding fasteners. After the wire clamp body and the pressure cap are enclosed, the damping pad is attached to the wire.

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