Connecting structure of spacer and wire

Abstract

The invention relates to a connecting structure of a spacer and a wire in the technical field of wire installation, which comprises a wire clamp ring composed of a fixed arc section and a movable arc section, the corresponding ends of the fixed arc section and the movable arc section are rotatably connected, and the outer walls of the other corresponding ends of the fixed arc section and the movable arc section are connected with supporting arm rods. Elastic insulating liners are fixed on the inner arc surfaces of the fixed arc section and the movable arc section; the inner ring surface of the wire clamp ring is annularly provided with a plurality of grooves, each groove is internally provided with an insulating ball, a spring is arranged between each insulating ball and the bottom of the corresponding groove, the elastic insulating lining is provided with an exposed hole corresponding to the groove, and the hole wall of the inner end of the exposed hole is in an arc-shaped closing-up shape; wherein the rod wall of one supporting arm rod is fixedly provided with a clamping nail and one end of a binding belt, and the other end of the binding belt is provided with a clamping hole which can be connected with the clamping nail in a sleeved mode after the binding belt bypasses the other supporting arm rod. The connecting structure of the spacer and the wire can be pre-installed near a wire tower, and the installation efficiency and safety are improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric wire installation, and in particular to a connection structure between a spacer bar and a conductor. Background Art

[0002] As is known, a spacer bar refers to a metal fitting installed on a split conductor to fix the spacing between each split conductor to prevent the conductors from whipping each other, suppress breeze vibration and sub-span oscillation; the spacer bar is generally installed in the middle of the span, usually one is installed every 50 to 60 meters, and for two-split, four-split, six-split, eight-split conductors, etc., a corresponding number of wire clamps are also arranged around the spacer ring to connect the supporting wires; for example, a Chinese invention patent with a publication number of CN102237662A discloses a supporting spacer bar, whose wire clamp is similar to a clamp structure, and two arc segments connected by rotation at one end are clamped outside the conductor, and the other ends of the two arc segments are connected by bolts to clamp the conductor, thereby connecting and supporting; When installing this type of spacer, the installer needs to climb to the top of the power tower with the spacer, then follow the wire to the support position, and then clamp and connect multiple wire clamps to the corresponding wires in sequence; since the spacer itself is heavy, it is not only difficult to transport, but also in the middle of the wire far away from the power tower, workers are required to clamp each wire clamp and tighten the bolts while ensuring their own support safety. If the distance between two power towers is 300-400m, then at least five spacers must be installed between two adjacent power towers. The traditional connection structure is very physically demanding for installation and construction. Not only is the operation cumbersome, but it also requires workers to be in a suspended working environment for a long time. Summary of the invention

[0003] In order to overcome the deficiencies in the background technology and solve the existing technical problems, the present invention discloses a connection structure between a spacer rod and a conductor, which can be pre-installed near a power tower to improve installation efficiency and safety.

[0004] To achieve the above object, the present invention adopts the following technical solution: A connection structure between a spacer rod and a conductor, comprising a wire clamp ring composed of a fixed arc segment and a movable arc segment, wherein the fixed arc segment and the movable arc segment have corresponding ends which are rotatably connected, and the outer walls of the other ends of the fixed arc segment and the movable arc segment are connected to support arms, and the two support arms are detachably connected by a bolt assembly, and the inner arc surfaces of the fixed arc segment and the movable arc segment are fixed with elastic insulating liners; the inner ring surface of the wire clamp ring is evenly provided with a plurality of grooves, and an insulating ball is movably provided in each groove, and a spring is provided between the insulating ball and the bottom of the corresponding groove, and the elastic insulating liners are provided with exposure holes corresponding to the grooves, and the inner end hole walls of the exposure holes are in an arc-shaped closing shape adapted to the contact with the insulating ball and capable of exposing part of the ball; a staple and one end of a strap are fixed to the rod wall of one of the support arms, and the other end of the strap is provided with a clamping hole capable of being sleeved with the staple after the strap passes around the other support arm.

[0005] Furthermore, the number of the grooves is four or six.

[0006] Furthermore, the insulating ball is made of ceramic material or polytetrafluoroethylene material.

[0007] Furthermore, the bottom of the groove is penetrated outwards and is sealed with a plug.

[0008] Furthermore, an abutment sleeve made of the same material as the insulating ball is embedded in the inner end hole wall of the exposure hole.

[0009] Furthermore, the maximum exposed height of the insulating ball is 0.8 times the radius of the insulating ball.

[0010] Furthermore, the wall of the support arm is provided with a slot for the corresponding strap to be inserted into.

[0011] Furthermore, the binding strap is configured as an elastic rubber strap.

[0012] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects: The connection structure between the spacer bar and the conductor disclosed in the present invention can utilize binding straps to make the fixed arc segment and the movable arc segment wrap the conductor but not tightened. At this time, since the wire clamp ring is only hung on the conductor, each wire clamp ring only shares a small part of the gravity of the entire spacer bar, and the insulating ball can expose the elastic insulating lining under the action of the spring, roll and resist the conductor, and the entire spacer bar can be moved and transported along the conductor by relying on the insulating ball, so that workers have a safe position with stable support near the power tower, and can pre-install multiple spacer bars that are needed, and then push the spacer bars forward along the conductor, tighten the bolts every 50 to 60 meters to squeeze the wire clamp ring, and completely install one spacer bar, which not only saves time and effort, but also greatly reduces the potential risk of suspended installation in the middle of the conductor due to the improved safety of pre-installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the pre-installed structure of the present invention; Figure 2 is a schematic diagram of the installation structure of the present invention; Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A in FIG.

[0014] In the figure: 1. elastic insulating lining; 2. fixed arc segment; 3. movable arc segment; 4. supporting arm; 5. insulating ball; 6. spring; 7. groove; 8. slot; 9. staple; 10. binding band; 11. exposure hole; 12. plug; 13. contact sleeve. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present invention and are for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0016] Combined with Figure 1-3 The connection structure between the spacer rod and the conductor comprises a wire clamp ring composed of a fixed arc segment 2 and a movable arc segment 3, so as to be able to adapt and clamp the conductor. The fixed arc segment 2 and the movable arc segment 3 are rotatably connected at one end corresponding to the fixed arc segment 2 and the movable arc segment 3. The outer walls of the other ends corresponding to the fixed arc segment 2 and the movable arc segment 3 are both connected with support arms 4. The two support arms 4 are detachably connected by a bolt assembly. The entire rotating clamping structure is similar to the existing clamp structure. The inner arc surfaces of the fixed arc segment 2 and the movable arc segment 3 are both fixed with elastic insulating linings 1, which can protect the conductor while ensuring insulation. The inner ring surface of the wire clamp ring is evenly provided with a plurality of grooves 7. As needed, four or six grooves 7 can be provided, and they are symmetrically arranged on the fixed arc segment 2 and the movable arc segment 3 to ensure that the number of insulating balls 5 can achieve the effect of rolling support for the wire; in addition, the bottom of the groove 7 is penetrated outward and blocked with a plug 12, and the plug 12 is plug-in or threaded connection to facilitate the installation of the insulating ball 5 and the spring 6. If the plug 12 is threaded connection, the elastic force of the spring 6 can also be adjusted according to the screw connection depth; an insulating ball 5 is movably provided in each groove 7, and the insulating ball 5 is made of ceramic material or polytetrafluoroethylene material to ensure a certain support hardness while having good insulation. The insulating ball 5 and the corresponding A spring 6 is provided between the groove bottoms of the grooves 7, and an exposure hole 11 is provided in the elastic insulating liner 1 corresponding to the groove 7. The inner end hole wall of the exposure hole 11 is adapted to the insulating ball 5 to contact, and can expose a part of the sphere in an arc-shaped closing shape. The insulating ball 5 can contact the inner end hole wall of the exposure hole 11 under the action of the elastic force of the spring 6, and expose a part of the sphere for rolling contact; as needed, a contact sleeve 13 made of the same material as the insulating ball 5 is embedded in the inner end hole wall of the exposure hole 11, thereby reducing the direct contact area between the insulating ball 5 and the elastic insulating liner 1 and increasing the rotation flexibility of the insulating ball 5; in addition, the maximum exposure height of the insulating ball 5 is 0.8 times the radius of the insulating ball 5, which is convenient for contacting the wire during pre-installation; A staple 9 and one end of a strap 10 are fixed to the rod wall of one of the support arm rods 4. Specifically, the strap 10 is set as an elastic rubber band, and the other end of the strap 10 is provided with a hole that can be sleeved with the staple 9 after the strap 10 passes around the other support arm rod 4. The cooperation between the hole and the staple 9 facilitates quick disassembly and assembly; according to needs, the rod wall of the support arm rod 4 is provided with a slot 8 corresponding to the strap 10, and the slot 8 can prevent the strap 10 from moving up and down and detaching from the support arm rod 4 connected to the movable arc segment 3.

[0017] The connection structure between the spacer rod and the conductor described in the present invention is mainly used for pre-installing the spacer rod, that is, the fixed arc segment 2 and the movable arc segment 3 can be wrapped around the conductor first, and the binding band 10 can be used to prevent the two support arms 4 from being completely separated, so that the wire clamp ring is just hung on the conductor and is in a state where the conductor is not tightened. At this time, the insulating ball 5 can expose the elastic insulating lining 1 under the action of the spring 6, roll and resist the conductor, and facilitate sliding along the conductor to adjust the position. When the spacer rod is transported to the right place, the bolt assembly is used to tighten the fixed arc segment 2 and the movable arc segment 3. At this time, the spring 6 is forced to resist the spring and retract into the groove 7, and the conductor can directly resist the elastic insulating lining 1. The spring 6 provides a reverse preload force for the bolt assembly, thereby enhancing the stability of the bolt assembly connection and preventing the connection from loosening.

[0018] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A connection structure for a spacer rod and a conductor, comprising a wire clamp ring composed of a fixed arc segment (2) and a movable arc segment (3), wherein one end of the fixed arc segment (2) and the movable arc segment (3) are rotatably connected, and the outer walls of the other ends of the fixed arc segment (2) and the movable arc segment (3) are both connected to support arms (4), and the two support arms (4) are detachably connected by a bolt assembly, and the inner arc surfaces of the fixed arc segment (2) and the movable arc segment (3) are both fixed with elastic insulating liners (1), wherein: The inner ring surface of the wire clamp ring is evenly provided with a plurality of grooves (7), an insulating ball (5) is movably provided in each groove (7), a spring (6) is provided between the insulating ball (5) and the bottom of the corresponding groove (7), the elastic insulating liner (1) is provided with an exposure hole (11) corresponding to the groove (7), the inner end hole wall of the exposure hole (11) is in an arc-shaped closing shape adapted to contact with the insulating ball (5) and capable of exposing a portion of the ball; a clamping nail (9) and one end of a binding strap (10) are fixed to the rod wall of one of the support arm rods (4), and the other end of the binding strap (10) is provided with a clamping hole capable of sleeve-connecting the clamping nail (9) after the binding strap (10) passes around the other support arm rod (4).

2. The connection structure of the spacer rod and the conductor according to claim 1 is characterized in that: The grooves (7) are provided with four or six grooves.

3. The connection structure of the spacer rod and the conductor according to claim 1 is characterized in that: The insulating ball (5) is made of ceramic material or polytetrafluoroethylene material.

4. The connection structure of the spacer rod and the conductor according to claim 1 is characterized in that: The bottom of the groove (7) is connected outwards and is sealed with a plug (12).

5. The connection structure of the spacer rod and the conductor according to claim 1, characterized in that: An abutment sleeve (13) made of the same material as the insulating ball (5) is embedded in the inner end hole wall of the exposure hole (11).

6. The connection structure of the spacer rod and the conductor according to claim 1, characterized in that: The maximum exposed height of the insulating ball (5) is 0.8 times the radius of the insulating ball (5).

7. The connection structure of the spacer rod and the conductor according to claim 1 is characterized in that: The wall of the support arm rod (4) is provided with a slot (8) for the corresponding binding belt (10) to be snapped into.

8. The connection structure of the spacer rod and the conductor according to claim 1, characterized in that: The binding belt (10) is configured as an elastic rubber belt.

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