CN203895922U - Damping spacer rod - Google Patents

Abstract

The utility model discloses a damping spacer rod, which comprises a fitting, a mandrel, an insulating jacket and a cable spacer assembly. One end can be matched with the clamped inner core cone rod and the top block extending into the outer sleeve from the other end of the outer sleeve. One end of the detachable connection; the insulating jacket is sleeved on the mandrel and the hardware; the cable spacer assembly includes a frame and a plurality of clamps that are rotatably connected with the frame and have a first fixing hole , each of the fittings is respectively connected to the frame of one of the cable spacing components. The inner core cone rod of the damping spacer of the utility model has three longitudinal slots, so that the mandrel is fixed more firmly, and the wire clip is connected to the frame in rotation, so that the spacer can be adjusted according to the position of the cable Clip angle.

Description

damping spacer

technical field

The utility model relates to a cable spacer, in particular to a damping spacer for preventing high-voltage electric wires from dancing with the wind.

Background technique

With the development of China's power grid construction, when the transmission line is covered with ice, it will produce wire galloping under the blowing of the wind, which may easily cause short circuits between phase wires, wire burns and broken wires, and metal fittings used to fix cable spacer components and mandrels serious accidents such as damage. Since frequent wire galloping in recent years has brought immeasurable economic losses and social impacts to our country, more and more anti-galloping devices are used on the line, among which interphase spacers are the most commonly used and more effective anti-galloping devices . When the traditional interphase spacer is used, it is difficult to flexibly adjust the clamp of the interphase spacer according to the actual position of the wires, resulting in certain limitations in the use of the product, which cannot better space and fix the wires. In addition, the structure of the fittings used to fix the connection between the cable spacer component and the mandrel is not good enough, so that the fixation of the mandrel and the cable spacer component is not stable enough, and the safety is poor.

Utility model content

The problem to be solved by the utility model is to provide a damping spacer with high safety and flexible adjustment of cable spacing angle.

In order to solve the above problems, the utility model discloses a damping spacer rod, which is used to fix the transmission line to prevent it from dancing under the blowing of the wind, including fittings, core rods, insulating jackets and cable spacer components, wherein: the The hardware includes an inner core taper rod, an outer sleeve and a top block. The inner core taper rod is arranged in the inner hole of the outer sleeve and one end thereof can be clamped with one end of the outer sleeve. The other end of the outer sleeve extends into the outer sleeve to push the inner core cone rod against one end of the outer sleeve to seal it in the outer sleeve; the two ends of the mandrel are respectively connected to One end of the inner core taper rod of the metal fitting is detachably connected to the top block; the insulating jacket is sleeved outside the mandrel and the fitting; the cable spacer assembly includes a frame and A plurality of wire clips, one end of the wire clip is rotatably connected to the frame, the other end of the wire clip is provided with a first fixing hole for passing a cable, each of the metal fittings is provided with one end of the top block They are respectively connected with the frame of one of the cable spacer components.

As a preference, the inner hole of the outer sleeve is a conical hole, the shape of the inner core cone rod is a conical column that matches the conical hole, and the outer diameter end of the inner core cone rod is in contact with the The top block abuts, the smaller end of the outer diameter cooperates and clamps with the smaller end of the inner diameter of the inner hole, and its end face is flush with the end face of the smaller end of the inner diameter of the inner hole. The outer surface of the tube is in the shape of a pyramid, and the inner core cone rod has a through hole through its two ends, and one end of the mandrel extends into the inner core cone through the through hole at the smaller end of the inner core cone rod. The rod is internally fixed, and the side wall of the inner core tapered rod is provided with three longitudinal slots that are not opened to the smaller end of the outer diameter along its length direction from the end with a larger outer diameter. The radial direction of the inner core taper rod communicates with the through hole.

Preferably, the jacking block includes an abutting portion and a connecting portion, the abutting portion is located in the outer casing and is a conical column type matched with the inner hole of the outer casing, the abutting portion is provided with external threads, and the outer casing The pipe is provided with an internal thread that fits and connects with the external thread, the connecting portion is cylindrical and abuts against the end of the outer casing, and the end that is not connected with the abutting portion is provided with a Retaining ring for frame attachment.

Preferably, the wire clip includes a first swing arm, a fixing block and a cover plate, one end of the first swing arm is hinged to the frame, and the cover plate is fixedly connected to the first swing arm in a snap-fit manner The other end of the cover plate and the side opposite to the first swing arm are correspondingly provided with a groove that can be used to accommodate and fix the fixed block when the cover plate is fastened with the first swing arm , the fixing block is provided with the first fixing hole through which the cable is fixed, the axis of the first fixing hole is perpendicular to the plane where the frame is located, and the fixing block is made of rubber material.

Preferably, it also includes a herringbone pendulum formed by two second swing arms, one end connected to the two second swing arms is fixed on the side of the frame away from the mandrel, and the other ends protrude from the The frame is provided with a fixing head, and the fixing head is provided with a second fixing hole for passing the cable to isolate and fix the cable.

As a preference, the frame is composed of two rectangular frames that are attached to each other. A rotation shaft is provided near the four corners of the rectangular frames and between the two rectangular frames. One end of the first swing arm It is connected with the rotating shaft; the rectangular frame is provided with a plurality of hollowed out parts, and the outer edge of each hollowed out part is provided with reinforcing pieces for enhancing the strength of the hole wall.

Preferably, the mandrel is a carbon fiber mandrel, and the outer sleeve is a silicone rubber outer sleeve.

The beneficial effect of the damping spacer rod of the utility model is that, due to the addition of the inner core cone rod with three longitudinal slots, the fixing of the mandrel rod is more firm, and the wire clip is rotatably connected between the first swing arm and the frame. , so that the damping spacer can adjust the angle of the cable clamp according to the different positions of the cables, so as to ensure the distance between the cables, so that the damping spacer has a better anti-galling effect.

Description of drawings

Fig. 1 is a structural schematic diagram of a damping spacer rod of the present invention.

Fig. 2 is a structural schematic diagram of the fittings of the damping spacer rod of the present invention.

Fig. 3 is a structural schematic diagram of the top block of the damping spacer rod of the present invention.

Fig. 4 is a structural schematic diagram of the inner core cone rod of the damping spacer rod of the present invention.

Fig. 5 is a structural schematic diagram of the cable spacer assembly of the damping spacer rod of the present invention.

Reference signs:

1-Mandrel; 2-Insulation jacket; 3-Hardware; 4-Frame; 5-Clamp; 6-First fixing hole; 7-Inner core taper rod; A swing arm; 11-fixed block; 12-cover plate; 13-connecting part; 14-top; 15-through hole; 16-longitudinal slot; 17-fixed ring; 20-reinforcing member; 21-herringbone pendulum; 22-second swing arm; 23-fixing head; 24-second fixing hole.

Detailed ways

The damping spacer rod of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the utility model provides a damping spacer rod, which is used to fix the transmission line to prevent it from dancing under the blowing of the wind, which includes a fitting 3, a mandrel 1, an insulating jacket 2 and a cable spacer assembly ,in:

The fitting 3 includes an inner core cone rod 7, an outer sleeve 8 and a top block 9. The inner core cone rod 7 is arranged in the inner hole of the outer sleeve 8 and one end thereof can be clamped with one end of the outer sleeve 8 so that the inner core cone rod 7 cannot pass through this end of the outer sleeve 8, and the top block 9 extends into the outer sleeve 8 from the other end of the outer sleeve 8 to push the inner core taper rod 7 against the above-mentioned end of the outer sleeve 8 to block it in the outer casing 8;

Both ends of the mandrel 1 are detachably connected to one end of the inner core taper rod 7 of a fitting 3 that is not in contact with the top block 9;

The insulating jacket 2 is set outside the mandrel 1 and the fitting 3;

The cable spacing assembly includes a frame 4 and a plurality of wire clips 5, one end of each wire clip 5 is rotatably connected to the frame 4, and the other end is provided with a first fixing hole 6 for passing cables, and each fitting 3 is provided with a top block One end of 9 is respectively connected with the frame 4 of a cable spacer assembly.

Further, as shown in FIG. 5 , the clamp 5 includes a first swing arm 10 , a fixed block 11 and a cover plate 12 , one end of the first swing arm 10 is rotatably connected to the frame 4 , and the other end is detachably connected to the cover plate 12 , the first swing arm 10 in this embodiment has a certain width and its width is equal to the width of the cover plate 12, and the first swing arm 10 and the cover plate 12 are fastened up and down (see FIG. The upper and lower positions are the same), and are fixedly connected by bolts. The opposite side of the cover plate 12 to the first swing arm 10 is provided with a groove capable of accommodating and fixing the fixing block 11 when the two are fastened together. The first fixing hole 6 of the cable, the axis of the first fixing hole 6 is perpendicular to the plane where the frame 4 is located. The length of the first fixing hole 6 in this embodiment is equal to the width of the first swing arm 10 . Of course, two first fixing holes 6 can also be arranged side by side on the fixing block 11, so as to fix two cables with a small distance between them. And the fixing block 11 is preferably made of damping material, such as rubber material.

Preferably, as shown in Fig. 2, Fig. 3 and Fig. 4, the inner core taper rod 7 is in the shape of a conical column, and the larger end of its outer diameter abuts against the top block 9, and the inner hole of the outer sleeve 8 is the same as the inner core taper rod. 7 The conical cylinder type with matching shape, the smaller end of the outer diameter of the inner core cone rod 7 is clamped with the smaller end of the inner diameter of the inner hole and its end face is flush with the end face of the smaller end of the inner diameter of the inner hole (hereinafter the inner core cone rod 7 The larger end of the inner diameter is called the big end, and the smaller end of the inner diameter is called the small end). Conical cone shape, so that it can be inserted into the insulating jacket 2; the inner core cone rod 7 has a through hole 15 through its two ends, and one end of the core rod 1 extends into the inner core cone rod through the through hole 15 at the smaller end of the inner diameter of the inner hole. 7 internal fixation. Preferably, three longitudinal slots 16 that are not opened to the small end of the inner core cone rod 7 are provided along the length direction from the end (ie, the large end) that abuts against the top block 9 on the side wall of the inner core cone rod 7. Slot 16 is communicated with through hole 15 along the radial direction of inner core taper rod 7, just these three longitudinal grooves 16 are divided into three lobes by inner core taper rod 7 part sidewalls (as shown in Figure 4, this three lobes not completely disconnected between them), one end of the mandrel 1 extends into the inner core cone rod 7 from the through hole 15 at the small end of the inner core cone rod 7, and then passes through the above-mentioned "three-lobe" side of the inner core cone rod 7 The wall is clamped to fix it. As shown in Figure 3, the top block 9 includes a top 14 and a connecting portion 13. The top 14 is located in the outer casing 8 and is a conical cylindrical shape that matches the inner hole of the outer casing 8. It is provided with external threads, and the outer casing 8 is provided with an internal thread that fits and connects with the external thread; the connecting portion 13 is cylindrical and is located outside the outer casing 8, and the side connected to the abutment 14 abuts against the end face of the outer casing 8, and the other side A fastening ring 17 for connection to the frame 4 is provided. Specifically, round holes can be provided at the corresponding positions of the frame 4, and the bolts can be threaded through the fixing ring 17 and the round holes to lock the two.

Continuing in conjunction with Fig. 5, the frame 4 is composed of two rectangular frames that are relatively fitted together, and the four corners of the rectangular frames and between the two rectangular frames are provided with a rotating shaft 18, and the first swing arm 10 One end is connected with the rotating shaft 18. Further, the rectangular frame is provided with a plurality of hollowed-out parts 19 for reducing wind resistance, and the outer edge of each hollowed-out part 19 is provided with a reinforcing piece 20 for enhancing the strength of the hole wall, that is, to strengthen the hole wall of the hollowed-out part 19. Thickness, the shape of the reinforcing member 20 matches the shape of the hollow part 19 .

Preferably, as shown in FIG. 1 , the cable spacer assembly in this embodiment further includes a herringbone pendulum 21 composed of two second swing arms 22 , and one end connected to the two second swing arms 22 is fixed on the The side of the frame 4 away from the mandrel 1 and the other end protrude out of the frame 4 and are provided with a fixing head 23, and the fixing head 23 is provided with a second fixing hole 24 for passing through the cable to isolate and fix the cable. That is, one cable spacer assembly can fix at least six cables.

In addition, as shown in FIG. 1 , the mandrel 1 in this embodiment is a carbon fiber mandrel with strong toughness and strength. The above-mentioned outer sleeve 8 is a silicone rubber outer sleeve.

The above embodiments are only exemplary embodiments of the utility model, and are not used to limit the utility model, and the protection scope of the utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the spirit and protection scope of the utility model, and such modifications or equivalent replacements should also be deemed to fall within the protection scope of the utility model.

Claims (7)

1. A damping spacer rod is used to fix the power transmission line to prevent it from dancing under the blowing of the wind. It is characterized in that it includes metal fittings, core rods, insulating jackets and cable spacer components, wherein: The hardware includes an inner core taper rod, an outer sleeve and a top block, the inner core taper rod is arranged in the inner hole of the outer sleeve and one end thereof can be clamped with one end of the outer sleeve, and the top block protruding into the outer sleeve from the other end of the outer sleeve for abutting the inner core taper rod against one end of the outer sleeve to seal it in the outer sleeve; The two ends of the mandrel are respectively detachably connected to one end of the inner core taper rod of the metal fitting which is not in contact with the top block; The insulating jacket is sheathed on the mandrel and the hardware; The cable spacer assembly includes a frame and a plurality of wire clamps, one end of the wire clamps is rotatably connected to the frame, and the other end of the wire clamps is provided with a first fixing hole for passing cables, each of which One end of the top block provided by the hardware is respectively connected to the frame of one of the cable spacer components. 2. The damping spacer according to claim 1, characterized in that, the inner hole of the outer sleeve is a conical hole, and the shape of the inner core cone rod is a conical column that matches the conical hole, The larger end of the outer diameter of the inner core taper rod abuts against the top block, the smaller end of the outer diameter cooperates with the smaller end of the inner diameter of the inner hole, and its end surface is in contact with the end surface of the smaller inner diameter end of the inner hole. The outer surface of the outer sleeve at the smaller end of the inner hole is in the shape of a cone, the inner core cone has a through hole through its two ends, and one end of the mandrel passes through the inner core cone The through hole at the smaller end extends into the inner core cone rod for fixation, and the side wall of the inner core cone rod is provided with three openings along the length direction from the end with a larger outer diameter to the outer diameter of the inner core cone rod. A longitudinal slot at the smaller end communicates with the through hole along the radial direction of the inner core taper rod. 3. The damping spacer according to claim 2, characterized in that, the top block includes an abutting portion and a connecting portion, and the abutting portion is located in the outer sleeve and is a conical column matched with the inner hole of the outer sleeve type, the abutting top is provided with external threads, and the outer sleeve is provided with internal threads that cooperate with the external threads. One end connected to the abutment is provided with a fixing ring for connecting with the frame. 4. The damping spacer according to claim 1, wherein the clamp comprises a first swing arm, a fixing block and a cover plate, one end of the first swing arm is hinged to the frame, and the cover plate It is fixedly connected to the other end of the first swing arm in a buckling manner, and the side of the cover plate opposite to the first swing arm is correspondingly provided when the cover plate is buckled with the first swing arm. It can be used to form a groove for accommodating and fixing the fixing block, the fixing block is provided with the first fixing hole through which the fixing cable is threaded, the axis of the first fixing hole is perpendicular to the The plane where the frame is located, the fixing block is made of rubber material. 5. The damping spacer according to claim 1, further comprising a herringbone pendulum formed by two second swing arms, one end of which two second swing arms are connected is fixed on the The side of the frame away from the mandrel and the other end extend out of the frame and are provided with a fixing head, and the fixing head is provided with a second fixing hole for passing through the cable to isolate and fix the cable. 6. The damping spacer according to claim 4, characterized in that the frame is composed of two relatively fitted rectangular frames, near the four corners of the rectangular frames and located between the two rectangular frames There are rotating shafts between them, and one end of the first swing arm is connected to the rotating shaft; a plurality of hollowed out parts are arranged on the rectangular frame, and the outer edge of each hollowed out part is provided with holes for enhancing the strength of the hole wall reinforcements. 7. The damping spacer rod according to claim 1, characterized in that, the mandrel is a carbon fiber mandrel, and the outer sleeve is a silicone rubber outer sleeve.