Cable head fixer

Abstract

The utility model relates to the technical field of fixing devices, in particular to a cable head fixing device which comprises a cross arm embedded in a terminal tower, and a plurality of clamping assemblies are arranged on the cross arm. The clamping assembly comprises a mounting seat buckled on the cross arm and a clamping seat used for clamping a cable head, a screw rod is rotationally arranged on the mounting seat, a connecting rod is rotationally arranged on the clamping seat, a screw sleeve is rotationally arranged at the end part of the connecting rod, the screw sleeve is in threaded connection with the screw rod, and a plurality of groups of insulators are arranged on the screw sleeve at intervals. The cable head is supported through the clamping assembly, connection fixing points of the cable head of the terminal tower are increased, the fixing stress of the suspended part of the cable head is shared, and therefore the risk that the connection position of the cable head is broken is reduced; meanwhile, the cable head is clamped through the clamping assembly, even if the joint of the cable head is broken, the cable head is still buckled by the clamping assembly, so that the cable head does not droop, and the problem of discharge short circuit caused by the fact that the cable falls and is overlapped and grounded is avoided. By arranging the movable connecting piece, the fixing condition of different positions of a field cable head is fully adapted.

Description

Technical Field

[0001] This application relates to the technical field of fixators, and particularly to a cable head fixator. Background Art

[0002] Currently, for the fixation of cable heads on the upper tower of a wind power terminal tower, cable clamps are generally used for fixation at the cable outlet of the cable through pipe. There is no fixation measure for the part above the three-finger sleeve of the cable head, and only the cable head is used for connection and force bearing. The existing fixation methods use copper-aluminum transition, or pure copper or pure aluminum materials. During operation, if the cable head is too long, it is easy to generate shaking. There is a large force on the cable head, and the swinging caused by the influence of wind speed makes the cable head repeatedly stressed, resulting in the cable head being easily broken and falling off at the end. The breakage of the cable head not only affects the power grid transmission; moreover, the cable drops and sags to ground and discharges, which is likely to cause overcurrent tripping of the line, expand the power outage range, and affect the load carried by the high-voltage line; at the same time, it will also lead to the occurrence of electric shock accidents.

[0003] Nowadays, when the cables on the terminal tower are lapped, insulators on the truss are used to lift the cable head, so as to share the load at the connection of the cable head. However, the common truss structure is fixed, and the distances between the upper towers of the terminal tower are different and cannot be flexibly adjusted according to the change of the distance; if the cable head is disconnected, it is easy to slip off the truss, and the above accidents still exist.

[0004] Therefore, this application provides a cable head fixator to share the fixing force of the suspended part of the cable head and avoid the cable from dropping and lapping to ground due to the damage of the cable head. Utility Model Content

[0005] The purpose of this application is to solve the problems existing in the prior art and propose a cable head fixator.

[0006] To achieve the above purpose, this application adopts the following technical solutions:

[0007] A cable head fixator includes a cross arm embedded on a terminal tower, and a plurality of clamping components are arranged on the cross arm;

[0008] The clamping component includes a mounting seat buckled on the cross arm and a clamping seat for clamping the cable head. A screw rod is rotatably arranged on the mounting seat, a connecting rod is rotatably installed on the clamping seat, a screw sleeve is rotatably installed at the end of the connecting rod, the screw sleeve is in threaded connection with the screw rod, and multiple groups of insulators are arranged at intervals on the screw sleeve.

[0009] Preferably, hanging buckles are arranged at both ends of the cross arm, and two through holes are symmetrically arranged on each hanging buckle.

[0010] Preferably, the cross arm includes a hollow rod and an inserting rod, the inserting rod is inserted into the hollow rod, and the two hanging buckles are respectively fixed at the opposite ends of the inserting rod and the hollow rod.

[0011] Preferably, the mounting seat includes an elliptical base and a buckle seat; the buckle seat is rotatably connected to the base on one side and is provided with a recessed groove on the other side, and the recessed groove is symmetrically provided with mounting holes, and the mounting holes on the two recessed grooves are fastened with bolts together; the screw is rotatably installed on the buckle seat.

[0012] Preferably, the clamping seat includes a U-shaped mounting frame, an extension plate is provided on one side of the mounting frame, a semicircular base 2 is fixed to the end of the extension plate, a semicircular buckle seat 2 is rotatably installed on the side of the base 2 facing away from the mounting frame, a buckle plate is provided on the side of the buckle seat 2 facing the mounting frame, a mounting plate is provided on the mounting frame on the same side as the buckle plate, and the buckle plate is fastened to the top plate by bolt 2.

[0013] Preferably, the extension plate and the gusset plate are both provided with contrasting waistcoats.

[0014] Preferably, the end surfaces of the base 2 and the buckle seat 2 facing the mounting frame are both provided with rubber pads.

[0015] Preferably, a semicircular friction ring is provided on the inner wall of the base 2 and the buckle seat 2.

[0016] Compared with the prior art, the present application provides a cable head holder, which has the following beneficial effects:

[0017] 1. When in use, the cable head is supported by the clamping assembly, the cable head connection and fixing points are increased on the terminal tower, the fixing force of the suspended part of the cable head is shared, the burden of the cable head falling is reduced, and the risk of the cable head connection breaking is reduced; at the same time, the cable head is clamped by the clamping assembly, even if the cable head connection is broken, the cable head is still buckled by the clamping assembly, so that the cable head will not sag, avoiding the problem of discharge short circuit caused by the cable falling and overlapping the ground.

[0018] 2. When the device is in use, the clamping length of the clamping assembly can be adaptively extended according to the position of the cable head, thereby adapting to the clamping and fixing of cable heads at different positions and lengths on site, thereby improving the flexibility of equipment use.

[0019] 3. Prevent the cable from discharging to the cable fixings by installing insulator connections.

[0020] Other advantages, objectives and features of the present application will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a right-hand axial view of the application in its installed state.

[0022] Figure 2Left - hand axial view in the installed state of the present application.

[0023] Figure 3 For the present application Figure 2 Schematic diagram of the structure of a single clamping assembly.

[0024] Figure 4 For the present application Figure 3 Stereo schematic diagram after flipping.

[0025] Figure 5 Top view and front view of the clamping assembly of the present application.

[0026] Figure 6 Schematic diagram of the connection between the clamping seat and the connecting rod of the present application.

[0027] Figure 7 Stereo schematic diagram of the mounting base 2 of the present application.

[0028] Figure 8 For the present application Figure 2 Stereo schematic diagram of the assembled clamping seat.

[0029] Figure 9 For the present application Figure 8 Axial view of the other side.

[0030] Figure 10 Explosion schematic diagram of the clamping seat of the present application.

[0031] Figure 11 Stereo view of the clamping seat of the present application.

[0032] In the figure: 1, cross - arm; 2, mounting base; 3, screw; 4, nut sleeve; 5, connecting rod; 6, clamping seat; 7, insulator; 101, hollow rod; 102, inserting rod; 103, hanging buckle; 201, base one; 202, buckle seat one; 203, bolt one; 601, base two; 602, buckle seat two; 603, bolt two; 604, mounting bracket; 605, extension plate; 606, buckle plate; 607, mounting plate; 608, rubber pad; 609, vest. Detailed implementation manners

[0033] Next, in combination with the attached drawings in the embodiments of the present application Figure 1-11 , the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments.

[0034] To solve the problems existing in the prior art, this embodiment provides a cable head fixer, including a cross - arm 1 embedded on a terminal tower, and a plurality of clamping assemblies are arranged on the cross - arm 1;

[0035] The clamping assembly includes a mounting base 2 buckled on the cross arm 1 and a clamping seat 6 for clamping the cable head. A screw rod 3 is rotatably mounted on the mounting base 2, a connecting rod 5 is rotatably mounted on the clamping seat 6, a rotating joint is provided at the end of the connecting rod 5, a screw sleeve 4 is rotatably mounted in the rotating joint, the screw sleeve 4 is threadedly connected to the screw rod 3, and multiple groups of insulators 7 are provided at intervals on the screw sleeve 4.

[0036] The insulator 7 itself is insulated, and the cross arm 1, the connecting rod 5, the screw sleeve 4, the mounting base 2, and the clamping seat 6 are all sprayed with insulating paint.

[0037] The designed installation height of the cross arm 1 should ensure a safe distance from the exposed cable.

[0038] Details of the principle of this embodiment:

[0039] During use, the cross arm 1 is embedded in the tower body of the terminal tower, serving as a load-bearing member for the clamping assembly. Then, the mounting base 2 is buckled on the cross arm 1 one by one, and the cable head is buckled on the clamping seat 6, thus completing the clamping and fixing of the cable head. The cable head is supported by the clamping assembly, sharing the fixing force of the suspended part of the cable head, reducing the downward load of the cable head, and thus reducing the risk of fracture at the connection of the cable head. At the same time, by clamping the cable head with the clamping assembly, even if the connection of the cable head breaks, the cable head is still buckled by the clamping assembly, so that the cable head will not droop, avoiding the problem of discharge short circuit caused by the cable falling and overlapping with the ground. When this device is in use, the screw sleeve 4 can be rotated according to the position of the cable head, so that the screw sleeve 4 extends along the screw rod 3 to extend the clamping length of the clamping assembly, thereby adapting to the clamping and fixing of cable heads at different positions and of different lengths, and improving the flexibility of equipment use.

[0040] The presence of the connecting rod 5 is used to adjust the position deviation of the clamping seat 6 after the screw sleeve 4 is rotated.

[0041] In a further embodiment of this solution, in this embodiment, a structure capable of embedding the cross arm 1 on the terminal tower is provided: both ends of the cross arm 1 are provided with hanging buckles 103, and two through holes are symmetrically provided on each hanging buckle 103. During use, the hanging buckles 103 are buckled on the tower body steel bar beam of the terminal tower, and then bolts and other fasteners are passed through the through holes to fasten the hanging buckles 103 on the tower body, thereby realizing the installation and fixation of the cross arm 1.

[0042] In a further embodiment of this solution, in this embodiment, a cross arm 1 structure applicable to different tower body intervals is provided: the cross arm 1 includes a hollow rod 101 and an insertion rod 102, the insertion rod 102 is inserted into the hollow rod 101, and two hanging buckles 103 are respectively fixed at the opposite ends of the insertion rod 102 and the hollow rod 101. The cooperation between the hollow rod 101 and the insertion rod 102 enables the cross arm 1 to form a telescopic rod structure, so as to be applicable to different tower body intervals within the range of the sum of the lengths of the hollow rod 101 and the insertion rod 102.

[0043] In a further embodiment of the present scheme, in this embodiment, a specific structure of a mounting base 2 detachably connected to the cross arm 1 is provided: the mounting base 2 includes an elliptical base 201 and a buckle seat 202, and the horizontal end surfaces of the base 201 and the buckle seat 202 are provided with semicircular grooves, and the two semicircular grooves are combined to form a circular hole buckled on the cross arm 1; the buckle seat 202 is rotatably connected to the base 201 on one side and is provided with a recessed groove on the other side, and the recessed grooves are symmetrically provided with mounting holes 1, and the mounting holes 1 on the two recessed grooves are fastened with bolts 203 together; the screw 3 is rotatably installed on the buckle seat 202.

[0044] When in use, first buckle the base 201 onto the cross arm 1, then close the buckle seat 202, and fasten the base 201 and the buckle seat 202 at their opening and closing ends with the bolt 203, thereby achieving the purpose of fixing the mounting base 2 onto the cross arm 1.

[0045] The base 201 and the buckle seat 202 are folded together to form an oval shape. The purpose of setting it to an oval shape is to leave enough space for the sink to open while ensuring aesthetics.

[0046] In a further embodiment of the present scheme, a specific structure of a clamping seat 6 for clamping a cable head is provided: the clamping seat 6 comprises a U-shaped mounting frame 604, an extension plate 605 is provided on one side of the mounting frame 604, a semicircular base 2 601 is fixed at the end of the extension plate 605, and a semicircular buckle seat 2 602 is rotatably mounted on the side of the base 2 601 away from the mounting frame 604. The horizontal ends of the base 2 601 and the buckle seat 2 602 are both provided with semicircular holes, and the two are combined to form a channel for buckling the cable. A buckle plate 606 is provided on the side of the buckle seat 2 602 facing the mounting frame 604, and a mounting plate 607 on the same side as the buckle plate 606 is provided on the mounting frame 604, and the buckle plate 606 and the top plate are provided with contrasting straight slot holes, and the buckle plate 606 and the straight slot holes of the top plate are fastened and connected by bolts 2 603.

[0047] After the mounting seat 2 is buckled, the cable head end is placed in the semicircular hole of the second base 601, and then the second buckle seat 602 is combined, and the second buckle seat 602 and the second base 601 are fastened by the second bolt 603, so that the cable is firmly buckled on the clamping seat 6.

[0048] In a further embodiment of this solution, after the second base 601 and the second buckle seat 602 are tightly installed, the buckle plate 606 on the second buckle seat 602 abuts against the mounting plate 607. When the second bolt 603 is tightened, the buckle plate 606 and the mounting plate 607 are stressed, which may cause bending over a long time. For this reason, the extension plate 605 and the buckle plate 606 are both provided with corresponding shoulders 609. When the buckle plate 606 on the second buckle seat 602 abuts against the mounting plate 607, the shoulder 609 on the buckle plate 606 abuts against the shoulder 609 on the mounting plate 607. At this time, the buckle plate 606 and the mounting plate 607 are no longer suspended, thereby reducing the probability of bending.

[0049] In a further embodiment of this solution, the end of the second buckle seat 602 is provided with a notch, and rubber pads 608 are provided on the end faces of the second base 601 and the second buckle seat 602 facing the mounting frame 604. The thickness of the rubber pad 608 is greater than the width of the notch. After the buckle seats are closed, the rubber pads 608 are squeezed. Due to the presence of the rubber pads 608, there is a pressure release margin for the tight installation of the buckle plate 606 and the mounting plate 607, and the clamping and fastening stability can be improved.

[0050] In a further embodiment of this solution, semi-circular friction rings are provided on the inner walls of the second base 601 and the second buckle seat 602. The clamping stability of the cable is improved.

[0051] In this solution, the rotating shafts of the screw 3 and the mounting seat 2, and the rotating shafts of the connecting rod 5 and the clamping seat 6 are all detachably connected. As shown in the drawings, bolts are used, which is convenient for replacement and disassembly.

[0052] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution of the present application and its application concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present application.

[0053] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art can combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. Cable head holder, characterized in that: It comprises a cross arm (1) embedded in a terminal tower, and a plurality of clamping components are provided on the cross arm (1); The clamping assembly comprises a mounting seat (2) buckled on a cross arm (1), a clamping seat (6) for clamping a cable head, a screw rod (3) rotatably mounted on the mounting seat (2), a connecting rod (5) rotatably mounted on the clamping seat (6), a screw sleeve (4) rotatably mounted on the end of the connecting rod (5), the screw sleeve (4) being threadedly connected to the screw rod (3), and a plurality of groups of insulators (7) being arranged at intervals on the screw sleeve (4).

2. The cable head holder according to claim 1, characterized in that: Both ends of the cross arm (1) are provided with hooks (103), and the hooks (103) are symmetrically provided with two through holes.

3. The cable head holder according to claim 2, characterized in that: The cross arm (1) comprises a hollow rod (101) and an insertion rod (102), wherein the insertion rod (102) is inserted into the hollow rod (101), and two hooks (103) are respectively fixed to opposite ends of the insertion rod (102) and the hollow rod (101).

4. The cable head holder according to claim 1, characterized in that: The mounting seat (2) comprises an elliptical base (201) and a buckle seat (202); the buckle seat (202) is rotatably connected to the base (201) on one side and is provided with a recessed groove on the other side, wherein mounting holes (203) are symmetrically provided in the recessed grooves, and the mounting holes (201) on the two recessed grooves are fastened with bolts (203) together; the screw rod (3) is rotatably mounted on the buckle seat (202).

5. The cable head holder according to claim 1, characterized in that: The clamping seat (6) comprises a U-shaped mounting frame (604), an extension plate (605) is provided on one side of the mounting frame (604), a semicircular base 2 (601) is fixed to the end of the extension plate (605), a semicircular buckle seat 2 (602) is rotatably mounted on the side of the base 2 (601) away from the mounting frame (604), a buckle plate (606) is provided on the side of the buckle seat 2 (602) facing the mounting frame (604), a mounting plate (607) is provided on the mounting frame (604) on the same side as the buckle plate (606), and the buckle plate (606) is fastened to the top plate via bolt 2 (603).

6. The cable head holder according to claim 5, characterized in that: The extension plate (605) and the gusset plate (606) are both provided with waistcoats (609) facing each other.

7. The cable head holder according to claim 6, characterized in that: The end surfaces of the second base (601) and the second buckle seat (602) facing the mounting frame (604) are both provided with rubber pads (608).

8. The cable head holder according to claim 5, characterized in that: The inner walls of the second base (601) and the second buckle seat (602) are both provided with semicircular friction rings.

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