Protective clip

Abstract

The present application relates to the technical field of strain clamp, in particular to a kind of protective wire clamp, including tensioning mechanism and two bodies.Two bodies are all provided with wedge-shaped sliding slot, and a wedge-shaped block is slidably arranged in each sliding slot, and wire is installed between two wedge-shaped blocks.Tensioning mechanism includes tensioning wheel and two tensioning rods, each tensioning rod is correspondingly installed on one body, and tensioning wheel is located between two tensioning rods and is screw threaded with two tensioning rods.A kind of protective wire clamp of the present application is matched by setting tensioning mechanism and two bodies, in use, two tensioning rods are made to be mutually close in the first direction by the rotation of tensioning wheel, and then two bodies are made to be mutually close in the first direction by two tensioning rods, two bodies are clamped to wire by wedge-shaped block, improve the precision of adjustment, simple structure and reduce the operation difficulty, make installation process more simple and efficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of strain clamp, in particular to a protective clamp. BACKGROUND

[0002] In the process of power line erection and maintenance, due to the influence of self-weight and external environmental factors (such as wind load, icing, etc.), long-distance transmission lines are prone to sagging in the middle section of the cable. This sagging not only affects the appearance of the line, but more importantly, it may lead to excessive cable sag, and further cause insufficient safety distance to ground, uneven distribution of line tension, and other problems. In severe cases, it may even cause wire breakage accidents, threatening the safe and stable operation of the power grid.

[0003] In order to solve the above problems, strain clamps are usually installed on long-distance transmission lines to provide necessary support and protection. Strain clamps are generally divided into bolt-type strain clamps, wedge-shaped insulating strain clamps, etc. Among them, wedge-shaped insulating strain clamps have been widely used in power lines due to their simple structure, convenient installation, good insulation performance, and other advantages. The traditional wedge-shaped insulating strain clamp is usually composed of a clamp body and two wedge-shaped blocks. During installation, the tail of the wedge block is struck by a tool to cause relative sliding between the wedge block and the clamp body. The self-locking feature of the wedge-shaped structure generates downward pressure, thereby gripping the conductor and achieving pre-tightening fixation.

[0004] However, the installation and disassembly process of the existing wedge-shaped insulating strain clamp is relatively cumbersome, and usually requires the use of tools to strike the wedge block to apply or release pressure. This not only increases the difficulty of operation, but also may cause damage to the wedge block or the clamp body. In the installation process, the wedge-shaped block is not easy to accurately install into the clamp body, and is prone to falling, affecting the installation efficiency, and even may cause safety accidents. SUMMARY

[0005] The present application provides a protective clamp to solve the problem of existing clamps being relatively cumbersome during installation and disassembly.

[0006] The protective wire clamp adopts the following technical scheme: a protective wire clamp for clamping a wire comprises a tensioning mechanism and two bodies; the two bodies are sequentially arranged along a first direction and are respectively located on two sides of the wire, the first direction being perpendicular to the axial direction of the wire; the two bodies are arranged face to face in the first direction, and the cross section of the body perpendicular to the axial direction of the wire is a U-shaped structure; the two ends of the body on the same side are respectively referred to as a first free end and a second free end; the first free ends of the two bodies are rotationally connected; the second free ends of the two bodies are connected through the tensioning mechanism; a wedge-shaped block is slidably arranged on each of the two bodies; the wire is located between the two wedge-shaped blocks; when the wedge-shaped blocks slide along the corresponding bodies, the bodies can make the two wedge-shaped blocks approach or move away from each other in the first direction; the tensioning mechanism comprises a tensioning wheel and two tensioning rods; the tensioning rods are arranged in one-to-one correspondence with the bodies; each tensioning rod is arranged along the first direction and is installed on the body corresponding thereto; the tensioning wheel is located between the two tensioning rods and is in screw connection with the two tensioning rods; the tensioning wheel is in contact with the wire and can rotate about the first direction; and rotation of the tensioning wheel about the first direction can make the two tensioning rods approach or move away from each other in the first direction.

[0007] Further, the first free ends of the two bodies are rotationally connected through a rotating shaft.

[0008] Further, the tensioning wheel comprises a wheel body and two sleeves; the two sleeves are arranged along the first direction; the two sleeves are respectively located at the two ends of the wheel body in the first direction; the sleeves are arranged in one-to-one correspondence with the tensioning rods; and the sleeves are in screw connection with the tensioning rods corresponding thereto.

[0009] Further, the two sleeves are respectively referred to as a first sleeve and a second sleeve; the first sleeve and the second sleeve are both provided with internal threads; the thread rotation directions of the internal threads on the first sleeve and the second sleeve are opposite; the two tensioning rods are respectively referred to as a first rod and a second rod; the first rod and the second rod are both provided with external threads; the thread rotation directions of the external threads on the first rod and the second rod are opposite; the external thread on the first rod is in rotational connection with the internal thread on the first sleeve; and the external thread on the second rod is in rotational connection with the internal thread on the second sleeve.

[0010] Further, the two ends of the wedge-shaped block along the axial direction of the wire are respectively referred to as a first end and a second end; the distance from the first end to the wire axis is greater than the distance from the second end to the wire axis.

[0011] Further, the protective wire clamp further comprises a hanging plate; the hanging plate is a U-shaped structure; the two ends of the hanging plate on the same side are both third free ends; the third free ends of the hanging plate are arranged in one-to-one correspondence with the bodies; the third free ends of the hanging plate and the bodies corresponding thereto are connected through bolts; and the first end of the wedge-shaped block on the side away from the second end of the wedge-shaped block in the axial direction of the wire.

[0012] Further, the first rod is rotationally connected with the body corresponding to the first rod, and the second rod is detachably connected with the body corresponding to the second rod.

[0013] Further, the two bodies are respectively referred to as a first body and a second body, the first rod is arranged corresponding to the first body, the second rod is arranged corresponding to the second body, the first rod is rotationally connected with the first body, the second rod is provided with a clamping block, the second body is provided with a clamping rod, and the clamping block can be clamped with the clamping rod.

[0014] Further, a plurality of tensioning wheels are arranged in sequence along the axis direction of the wire.

[0015] Further, the surfaces of the two bodies are fixedly provided with reinforcing ribs.

[0016] The protective wire clamp has the advantages that: the protective wire clamp is provided with a tensioning mechanism and two bodies, in use, the two tensioning rods are relatively close to each other in the first direction through the rotation of the tensioning wheel, and then the two bodies are relatively close to each other in the first direction through the two tensioning rods, the two bodies clamp the wire through the wedge-shaped blocks, the clamping degree of the wedge-shaped blocks on the wire can be adjusted by adjusting the rotation direction of the tensioning wheel, the adjustment accuracy is improved, the structure is simple, the operation difficulty is reduced, the installation process is more convenient and efficient, in the subsequent use process, when the tension of the wire makes the wedge-shaped blocks and the wire relatively slide with respect to the body, the wedge-shaped blocks can be relatively close to each other in the first direction, the wire is tensioned, the self-adaptive tensioning is realized, and due to the movement of the wire, the wire promotes the rotation of the tensioning wheel around the first direction, so that the two tensioning rods can be relatively close to each other in the first direction, the wire is tensioned, the tensioning force is dynamically adjusted in the use process, and if the wire and the wedge-shaped blocks relatively slide, the two tensioning rods can also be relatively close to each other in the first direction, and the tensioning effect on the wire is further enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 FIG. 4 is a schematic view of the overall structure of an embodiment of the protective wire clamp of the present application after installing the wire;

[0019] Figure 2 FIG. 5 is a front view of the overall structure of an embodiment of the protective wire clamp of the present application after installing the wire;

[0020] Figure 3 Fig. 2 is a perspective view of an embodiment of the protective wire clamp of the present application; Figure 2 Fig. 3 is a sectional view along A-A in Fig. 2;

[0021] Figure 4 Fig. 4 is a side view of the overall structure of an embodiment of the protective wire clamp of the present application after installation of the wire;

[0022] Figure 5 Fig. 5 is a sectional view along B-B in Fig. 4; Figure 4

[0023] Figure 6 Fig. 6 is a schematic view of a partial structure of an embodiment of the protective wire clamp of the present application;

[0024] Figure 7 Fig. 7 is a sectional view along C-C in Fig. 6; Figure 6

[0025] Figure 8 Fig. 8 is an enlarged view of D in Fig. 7; Figure 7

[0026] Fig. 9 is a schematic view of the overall structure of an embodiment of the protective wire clamp of the present application; Figure 9

[0027] Fig. 10 is an exploded view of the overall structure of an embodiment of the protective wire clamp of the present application. Figure 10 In the drawings: 100, wire; 200, tensioning mechanism; 210, tensioning wheel; 211, wheel body; 212, first sleeve; 213, second sleeve; 220, tensioning rod; 221, first rod; 222, second rod; 223, clamping block; 300, body; 301, reinforcing rib; 310, first body; 320, second body; 321, clamping rod; 400, wedge block; 500, rotating shaft; 600, hanging plate.

[0028] DETAILED DESCRIPTION The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0029] An embodiment of the protective wire clamp of the present application is shown in Fig. 1.

[0030] Figures 1 to 10 Fig. 2 is a perspective view of an embodiment of the protective wire clamp of the present application;

[0031] ​​​The utility model provides a protective wire clamp for clamping wire 100, including tensioning mechanism 200 and two bodies 300. Two bodies 300 are sequentially arranged along the first direction, and are respectively located on the both sides of wire 100, and the first direction is perpendicular to the axis direction of wire 100. Two bodies 300 are arranged face to face in the first direction, and the cross section of body 300 perpendicular to the axis direction of wire 100 is U-shaped structure, and the two ends on the same side of body 300 are called first free end and second free end respectively, and the first free end of two bodies 300 is rotationally connected, and the second free end of two bodies 300 is connected through tensioning mechanism 200. Two bodies 300 are provided with wedge-shaped sliding grooves, and each sliding groove is slidably provided with a wedge-shaped block 400, wire 100 is located between two wedge-shaped blocks 400, and when wedge-shaped block 400 slides along the corresponding sliding groove, body 300 can make two wedge-shaped blocks 400 approach or move away from each other in the first direction.

[0032] Tensioning mechanism 200 includes tensioning wheel 210 and two tensioning rods 220, and tensioning rod 220 is arranged one by one with body 300, and each tensioning rod 220 is arranged along the first direction and is installed on the corresponding body 300, and tensioning wheel 210 is located between two tensioning rods 220 and is screwedly matched with two tensioning rods 220, and tensioning wheel 210 is in contact with wire 100 and can rotate around the first direction, and the rotation of tensioning wheel 210 around the first direction can make two tensioning rods 220 approach or move away from each other in the first direction.

[0033] Specifically, the first free end of two bodies 300 is rotationally connected through rotating shaft 500.

[0034] Body 300 is casted by cast aluminum, and the inside of body 300 is provided with PFA (dissolvable polytetrafluoroethylene) layer, which is convenient for wire 100 heat dissipation. Wedge-shaped block 400 is made of insulating reinforced engineering plastic, and the surface of two bodies 300 is fixedly provided with reinforcing ribs 301, and the reinforcing ribs 301 are provided with a plurality of reinforcing ribs 301, and the reinforcing ribs 301 are uniformly distributed on the surface of body 300 along the axis direction of wire 100.

[0035] The embodiment is characterized in that the tensioning mechanism 200 and the two bodies 300 are cooperated to clamp the wire 100 between the two wedge blocks 400 in use, the tensioning wheel 210 is in contact with the wire 100, and then the tensioning wheel 210 is rotated to drive the two tensioning rods 220 to move towards each other in the first direction, and then the two bodies 300 are driven by the two tensioning rods 220 to move towards each other in the first direction, and the two wedge blocks 400 clamp the wire 100, and the clamping degree of the wedge blocks 400 to the wire 100 can be adjusted by adjusting the rotating direction of the tensioning wheel 210, so that the adjusting precision is improved, the structure is simple, the operation difficulty is reduced, and the installation process is more convenient and efficient. In the subsequent use process, when the tension of the wire 100 drives the wedge blocks 400 and the wire 100 to slide synchronously relative to the body 300, the installation direction of the body 300 is set, so that when the wedge blocks 400 and the wire 100 slide synchronously relative to the body 300, the wedge blocks 400 can move towards each other in the first direction to tension the wire 100, and self-adaptive tensioning is realized. Due to the movement of the wire 100, the wire 100 drives the tensioning wheel 210 to rotate around the first direction, and the rotation direction of the screw joint between the tensioning wheel 210 and the tensioning rod 220 is set, so that when the wire 100 moves in the direction of the tension and drives the tensioning wheel 210 to rotate around the first direction, the two tensioning rods 220 can move towards each other in the first direction to tension the wire 100. In the use process, the tensioning force is dynamically adjusted, and if the wire 100 and the wedge blocks 400 slide relative to each other, the two tensioning rods 220 can also move towards each other in the first direction to further enhance the tensioning effect on the wire 100.

[0036] In a further embodiment, the tensioning wheel 210 includes a wheel body 211 and two sleeves, both of which are arranged in the first direction, and both of which are arranged at both ends of the wheel body 211 in the first direction. The sleeve is arranged one by one with the tensioning rod 220, and the sleeve is screw jointed with the corresponding tensioning rod 220.

[0037] Specifically, the two sleeves are respectively referred to as a first sleeve 212 and a second sleeve 213, and both the first sleeve 212 and the second sleeve 213 are provided with internal threads, and the thread rotation directions of the internal threads on the first sleeve 212 and the second sleeve 213 are opposite. The two tensioning rods 220 are respectively referred to as a first rod 221 and a second rod 222, and both the first rod 221 and the second rod 222 are provided with external threads, and the thread rotation directions of the external threads on the first rod 221 and the second rod 222 are opposite. The external thread on the first rod 221 is in screw joint with the internal thread on the first sleeve 212, and the external thread on the second rod 222 is in screw joint with the internal thread on the second sleeve 213, so that when the tensioning wheel 210 rotates, the two tensioning rods 220 can move away from or towards each other in the first direction.

[0038] In further embodiments, the two ends of the wedge-shaped block 400 along the axis direction of the conductor 100 are respectively referred to as a first end and a second end, the distance from the first end to the axis of the conductor 100 in the first direction is greater than the distance from the second end to the axis of the conductor 100 in the first direction, so that when the wedge-shaped block 400 moves in the axis direction of the conductor 100 in the body 300, the two wedge-shaped blocks 400 can move closer to or farther away from each other in the first direction.

[0039] Referring to FIG. 1, the first end of the wedge-shaped block 400 is located above the second end, and when the tension direction of the conductor 100 is upward, the upward movement of the wedge-shaped block 400 will cause the two wedge-shaped blocks 400 to move closer to each other in the corresponding body 300, thereby clamping the conductor 100. Figure 5

[0040] Specifically, the body 300 is a trapezoidal structure, the large end of the body 300 is located on the same side as the first end of the wedge-shaped block 400, and the small end of the body 300 is located on the same side as the second end of the wedge-shaped block 400.

[0041] The trapezoidal structure of the body 300 helps to better disperse stress when fixing the cable and enhances the overall stability of the protective wire clamp.

[0042] A protective wire clamp further includes a hanging plate 600, the hanging plate 600 is a U-shaped structure, both ends of the hanging plate 600 on the same side are third free ends, the third free ends of the hanging plate 600 are one-to-one corresponding to the bodies 300, the third free ends of the hanging plate 600 are connected to the corresponding bodies 300 through bolts, and the hanging plate 600 is located on the side of the first end of the wedge-shaped block 400 away from the second end of the wedge-shaped block 400 in the axis direction of the conductor 100. The hanging plate 600 is used to be fixed on the strain insulator string of the non-linear tower to realize the installation of the protective wire clamp.

[0043] In further embodiments, the first rod 221 is rotationally connected to the corresponding body 300, and the second rod 222 is detachably connected to the corresponding body 300.

[0044] Specifically, the two bodies 300 are respectively referred to as a first body 310 and a second body 320, the first rod 221 is corresponding to the first body 310, the second rod 222 is corresponding to the second body 320, and the first rod 221 is rotationally connected to the first body 310, the second rod 222 is provided with a clamping block 223, the second body 320 is provided with a clamping rod 321, and the clamping block 223 can be clamped with the clamping rod 321.

[0045] By providing the clamping block 223 on the second rod 222, referring to FIG. 6, when the second rod 222 is rotationally connected to the second body 320, the clamping block 223 can be clamped with the clamping rod 321 of the second body 320, thereby achieving the detachable connection between the second rod 222 and the second body 320. Figure 9 ​As shown, when installing the wire 100, the clamping block 223 is disengaged from the clamping rod 321 on the body 300 corresponding to it, facilitating the installation of the wire 100. After the wire 100 is placed between the two wedge-shaped blocks 400, the two bodies 300 can be rotated around the rotating shaft 500, and the clamping block 223 is clamped into the clamping rod 321 on the body 300 corresponding to it, and then the tensioning wheel 210 is rotated for adjustment.

[0046] In a further embodiment, the tensioning wheel 210 is provided with a plurality of tensioning wheels 210, which are sequentially arranged along the axis direction of the wire 100.

[0047] In combination with the above embodiment, the specific working process is as follows:

[0048] Referring to the accompanying drawings Figure 9 As shown, when installing the wire 100, the clamping block 223 is disengaged from the clamping rod 321 on the body 300 corresponding to it, facilitating the installation of the wire 100. After the wire 100 is placed between the two wedge-shaped blocks 400, the two bodies 300 can be rotated around the rotating shaft 500, and the clamping block 223 is clamped into the clamping rod 321 on the body 300 corresponding to it.

[0049] Then the tensioning wheel 210 is rotated for adjustment. The rotation of the tensioning wheel 210 causes the two tensioning rods 220 to approach each other in the first direction, and then the two bodies 300 approach each other in the first direction through the two tensioning rods 220. The two bodies 300 clamp the wire 100 through the wedge-shaped blocks 400. The clamping degree of the wedge-shaped blocks 400 on the wire 100 can be adjusted by adjusting the rotation direction of the tensioning wheel 210, improving the accuracy of adjustment.

[0050] In the subsequent use process, when the tension of the wire 100 causes the wedge-shaped blocks 400 and the wire 100 to slide synchronously relative to the body 300, by setting the installation direction of the body 300, when the wedge-shaped blocks 400 and the wire 100 slide synchronously relative to the body 300, the wedge-shaped blocks 400 can approach each other in the first direction, and the wire 100 is tensioned, realizing self-adaptive tensioning. Due to the movement of the wire 100, the wire 100 will promote the rotation of the tensioning wheel 210 around the first direction. By setting the rotation direction of the screw connection between the tensioning wheel 210 and the tensioning rod 220, when the wire 100 moves along the direction of the tension and promotes the rotation of the tensioning wheel 210 around the first direction, the two tensioning rods 220 can approach each other in the first direction, and the wire 100 is tensioned. In the use process, the tension is dynamically adjusted, and if the wire 100 and the wedge-shaped blocks 400 slide relative to each other, the two tensioning rods 220 can also approach each other in the first direction, further enhancing the tensioning effect on the wire 100.

[0051] The above merely provides the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A protective wire clamp for clamping wires, characterized in that: The utility model provides a kind of wire tensioning device, including tensioning mechanism and two bodies;Two bodies are sequentially arranged along first direction, and respectively located at the two sides of wire, and first direction is perpendicular to the axis direction of wire;Two bodies are face to face in first direction, and the section of body perpendicular to the axis direction of wire is U-shaped structure, and the two ends of body on the same side are respectively referred to as first free end and second free end, and the first free end of two bodies is rotatably connected by rotating shaft, and the second free end of two bodies is connected by tensioning mechanism;Two bodies are slidably provided with a wedge block, and wire is located between two wedge blocks, and when wedge block slides along its corresponding body, body can make two wedge blocks approach each other or away from each other in first direction, and the two ends of wedge block along the axis direction of wire are respectively referred to as first end and second end, and the distance from first end to wire axis is greater than the distance from second end to wire axis, and body is trapezoidal structure, and the large end of body is located on the same side with the first end of wedge block, and the small end of body is located on the same side with the second end of wedge block;Tensioning mechanism includes tensioning wheel and two tensioning rods, and tensioning rod is one-to-one corresponding with body, and each tensioning rod is arranged along first direction and is installed on the body corresponding thereto, and tensioning wheel is located between two tensioning rods and is screw-threaded with two tensioning rods, and tensioning wheel is in contact with wire and can rotate around first direction, and adjusting the rotating direction of tensioning wheel around first direction can make two tensioning rods approach each other or away from each other in first direction to adjust the clamping degree of wedge block to wire, and tensioning wheel is provided with multiple, and multiple tensioning wheels are sequentially arranged along the axis direction of wire, and tensioning wheel includes wheel body and two sleeves arranged along first direction, and two sleeves are respectively located at the two ends of wheel body in first direction, and sleeve is one-to-one corresponding with tensioning rod, and sleeve is screw-threaded with the tensioning rod corresponding thereto, and two sleeves are respectively referred to as first sleeve and second sleeve, and first sleeve and second sleeve are provided with internal thread, and the thread rotation direction of internal thread on first sleeve and second sleeve is opposite, and two tensioning rods are respectively referred to as first rod and second rod, and first rod and second rod are provided with external thread, and the thread rotation direction of external thread on first rod and second rod is opposite, and external thread on first rod is rotatably connected with internal thread on first sleeve, and external thread on second rod is rotatably connected with internal thread on second sleeve;First rod is rotatably connected with the body corresponding thereto, and second rod is detachably connected with the body corresponding thereto, and two bodies are respectively referred to as first body and second body, and first rod is corresponding with first body, and second rod is corresponding with second body, and first rod is rotatably connected with first body, and second rod is provided with clamping block, and second body is provided with clamping rod, and clamping block can be clamped with clamping rod, and when wire is installed, make clamping block and the clamping rod on the body corresponding thereto disengage, facilitate the installation of wire, and after wire is placed between two wedge blocks, make two bodies rotate around rotating shaft, and clamping block is clamped into the clamping rod of the body corresponding thereto.

2. The shielded electrical connector of claim 1, wherein: The hanging plate is in a U-shaped structure, and the two ends on the same side of the hanging plate are both third free ends.

3. The shielded electrical connector of claim 1, wherein: The surfaces of the two bodies are both fixedly provided with reinforcing ribs.

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