Polymer cable clamp for power transmission tower

Abstract

The utility model relates to the technical field of cable clamps, in particular to a polymer cable clamp for a power transmission tower, which comprises a fixing plate, a first lower clamping seat is fixedly arranged at the top end of one side of the fixing plate, and a second lower clamping seat is slidably arranged at the top end of the other side of the fixing plate. Locking bolts are symmetrically and slidably embedded in the first lower clamping seat and the second lower clamping seat in a penetrating mode, upper clamping seats are slidably arranged on the adjacent locking bolts in a sleeving mode, a U-shaped frame is fixedly arranged at the top end of the fixing plate and located between the first lower clamping seat and the second lower clamping seat, a nut seat is fixedly embedded in the top end of the U-shaped frame in a penetrating mode, and the nut seat is located between the first lower clamping seat and the second lower clamping seat. A first adjusting screw rod is rotationally arranged in the nut seat in a threaded mode, the bottom end of the first adjusting screw rod extends into the U-shaped frame and is rotationally connected with a pressing block, the cable reserved section can be limited and stabilized, later maintenance can be conveniently carried out on the cable end connecting position, and then the practicability of the clamp is improved.

Description

Technical Field

[0001] The utility model relates to a polymer cable clamp for a power transmission iron tower, belonging to the technical field of cable clamps. Background Art

[0002] The transmission tower is the supporting point of the overhead line. If one circuit is erected on the transmission tower, it is a single-circuit transmission tower. If two circuits are erected on the transmission tower, it is a double-circuit transmission tower. A single circuit refers to a circuit with one power supply for one load; a double circuit refers to a circuit with two power supplies for one load. During the laying process of the polymer cable used in the transmission tower, a clamp is needed to clamp and fix it.

[0003] According to the publication number CN105977880A, a cable clamp is disclosed, which includes an alloy upper clamp and an alloy lower clamp. The middle section of the upper clamp is arched upward, and the bottom surfaces of the two ends of the upper clamp fit with the top surface of the lower clamp to form a through groove; the two ends of the upper clamp are detachably fixed to the top surface of the lower clamp by a connector. The cable clamp is used to clamp multiple cables at one time, saving raw materials and reducing damage to the installation area. When the above device is used, after the cable is fixed, a part of the length of the cable needs to be reserved at the end of the cable for later maintenance. At this time, the cable at the reserved part is not stable, which easily leads to damage at the end connection, making the practicality of the clamp low. Utility Model Content

[0004] The purpose of the utility model is to provide a polymer cable clamp for a transmission tower. The utility model can limit and stabilize the reserved section of the cable, thereby facilitating the later maintenance of the end connection of the cable, thereby improving the practicality of the clamp to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A polymer cable clamp for a transmission tower comprises a fixed plate, a lower clamp seat 1 is fixedly provided on the top of one side of the fixed plate, a lower clamp seat 2 is slidably provided on the top of the other side of the fixed plate, locking bolts are symmetrically penetrated and slidably embedded in the lower clamp seat 1 and the lower clamp seat 2, upper clamp seats are slidably sleeved on adjacent locking bolts, a U-shaped frame is fixedly provided on the top of the fixed plate, the U-shaped frame is located between the lower clamp seat 1 and the lower clamp seat 2, a nut seat is fixedly embedded in the top of the U-shaped frame, an adjusting screw rod 1 is rotatably provided in the inner thread of the nut seat, and the bottom end of the adjusting screw rod extends into the U-shaped frame and is rotatably connected with a pressure block.

[0007] Furthermore, anti-slip pads are fixedly provided on the inner walls of the arc-shaped grooves on the lower clamping seat 1, the lower clamping seat 2, and the upper clamping seat.

[0008] Furthermore, through holes are provided at four corners of the top end of the fixing plate.

[0009] Furthermore, a slide groove 1 is provided at the top of the fixed plate, and an adjusting screw 2 is rotatably embedded on the side of the fixed plate away from the lower clamping seat 1, the other end of the adjusting screw 2 extends into the slide groove 1, and a slider 1 is threadedly sleeved on the adjusting screw 2 located in the slide groove 1, and the top of the slider 1 is fixedly connected to the bottom end of the lower clamping seat 2.

[0010] Furthermore, a spring is slidably sleeved on each of the locking bolts, and the bottom end of the spring respectively contacts the top end of the adjacent lower clamp seat 1 or the lower clamp seat 2, and the top end of the spring contacts the bottom end of the adjacent upper clamp seat.

[0011] Furthermore, a second slide groove is provided on one side adjacent to the vertical parts of the U-shaped frame, a second slide block is slidably provided in the second slide groove, and the second slide block is fixedly connected to one side adjacent to the pressing block.

[0012] The beneficial effects of the utility model are:

[0013] The utility model is provided with a lower clamp seat two and a pressure block. When in use, the cable can be clamped and fixed by the lower clamp seat one, the lower clamp seat two and the upper clamp seat. At this time, the cable is limited by the arc groove at the bottom end of the pressure block, so that the reserved section of the cable can be placed between the lower clamp seat one and the lower clamp seat two, and at the same time it is limited and stabilized by the pressure block. When maintenance is needed, the position of the end of the cable can be adjusted by adjusting the position of the lower clamp seat two and the height of the pressure block, so that the later maintenance of the cable can be convenient. The utility model can limit and stabilize the reserved section of the cable, so as to facilitate the later maintenance of the end connection of the cable, thereby improving the practicality of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0015] Figure 1 This is a front view of a polymer cable clamp for a power transmission tower of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of a polymer cable clamp for a power transmission tower of the utility model;

[0017] Figure 3 It is a side view of a polymer cable clamp for a power transmission tower of the utility model;

[0018] Figure 4 The utility model is a polymer cable clamp for a transmission tower. Figure 2 The enlarged view of point A in the middle;

[0019] Numbers in the figure: 1. Fixed plate; 2. Lower clamp seat 1; 3. Lower clamp seat 2; 4. Locking bolt; 5. Upper clamp seat; 6. U-shaped frame; 7. Nut seat; 8. Adjusting screw 1; 9. Pressure block; 10. Through hole; 11. Slide slot 1; 12. Adjusting screw 2; 13. Slider 1; 14. Spring; 15. Slide slot 2; 16. Slider 2. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0022] A polymer cable clamp for a transmission tower comprises a fixed plate 1, a lower clamp seat 2 is fixedly provided on the top of one side of the fixed plate 1, a lower clamp seat 3 is slidably provided on the top of the other side of the fixed plate 1, locking bolts 4 are symmetrically penetrated and slidably embedded on the lower clamp seats 2 and 3, upper clamp seats 5 are slidably sleeved on adjacent locking bolts 4, a U-shaped frame 6 is fixedly provided on the top of the fixed plate 1, the U-shaped frame 6 is located between the lower clamp seat 2 and the lower clamp seat 3, a nut seat 7 is fixedly embedded on the top of the U-shaped frame 6, an adjusting screw 8 is rotatably provided on the internal thread of the nut seat 7, and the bottom end of the adjusting screw 8 extends into the U-shaped frame 6 and is rotatably connected to a pressure block 9.

[0023] Specifically, Figure 1 and Figure 2 As shown, anti-skid pads are fixedly provided on the inner walls of the arc-shaped grooves on the lower clamp seat 1 2 , the lower clamp seat 2 3 , and the upper clamp seat 5 . By providing the anti-skid pads, the stability of the clamp seat when clamping the cable can be improved.

[0024] Specifically, Figure 1-Figure 4As shown, through holes 10 are provided at the four corners of the top end of the fixing plate 1, a slide groove 11 is provided at the top end of the fixing plate 1, an adjusting screw 12 is rotatably embedded on the side of the fixing plate 1 away from the lower clamping seat 2, the other end of the adjusting screw 12 extends into the slide groove 11, a slider 13 is threadedly sleeved on the adjusting screw 12 located in the slide groove 11, the top of the slider 13 is fixedly connected to the bottom end of the lower clamping seat 2 3, by providing the through holes 10, the fixing plate 1 can be fixed at a suitable position by using a locking workpiece, and by rotating the adjusting screw 12, the adjusting screw 12 drives the slider 13 to move in the slide groove 11, and the lower clamping seat 2 3 can be driven to move by the slider 13.

[0025] Specifically, Figure 1-Figure 4 As shown, a spring 14 is slidably sleeved on the locking bolt 4, and the bottom end of the spring 14 respectively contacts the top end of the adjacent lower clamp seat 1 2 or the lower clamp seat 2 3, and the top end of the spring 14 contacts the bottom end of the adjacent upper clamp seat 5. By providing the spring 14, it is possible to effectively prevent the upper clamp seat 5 from moving downward too far, thereby preventing damage to the cable sheath.

[0026] Example 2 Please refer to Figure 2 and Figure 4 The difference between this embodiment and embodiment 1 is that: a second slide groove 15 is provided on one side adjacent to the vertical parts of the U-shaped frame 6, a second slider 16 is slidably provided in the second slide groove 15, and the second slider 16 is fixedly connected to the side adjacent to the pressing block 9. When the pressing block 9 moves, the pressing block 9 drives the second slider 16 to move in the second slide groove 15, and the second slider 16 can support the pressing block 9.

[0027] When the cable is in use, the fixing bolts 10 are inserted into the through holes 10 to fix the fixing plate 1 in a suitable position, and then the cable is passed through the lower clamp seat 1 2, the lower clamp seat 2 3 and the upper clamp seat 5. At this time, the adjusting screw 1 8 is rotated to make the adjusting screw 1 8 push the pressure block 9 to move downward through the nut seat 7, thereby pushing the cable to move downward through the pressure block 9. When the pressure block 9 moves, the pressure block 9 drives the slider 2 16 to move in the slide groove 2 15, and the slider 2 16 can support the pressure block 9, and then the nut on the locking bolt 4 is tightened, so that the cable can be pressed and fixed through the upper clamp seat 5. By setting the spring 14, the upper clamp seat 5 can be effectively prevented from moving too far downward, thereby avoiding damage to the cable sheath. When maintenance is needed, the position of the cable end can be adjusted by adjusting the position of the lower clamp seat 2 3 and the height of the pressure block 9, thereby facilitating the later maintenance of the cable.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polymer cable clamp for a transmission tower, comprising a fixing plate (1), characterized in that: A lower clamping seat (2) is fixedly provided at the top of one side of the fixing plate (1), and a lower clamping seat (3) is slidably provided at the top of the other side of the fixing plate (1). Locking bolts (4) are symmetrically penetrated and slidably embedded on the lower clamping seats (2) and the lower clamping seats (3), and upper clamping seats (5) are slidably sleeved on adjacent locking bolts (4). A U-shaped frame (6) is fixedly provided at the top of the fixing plate (1), and the U-shaped frame (6) is located between the lower clamping seat (2) and the lower clamping seat (3). A nut seat (7) is fixedly embedded at the top of the U-shaped frame (6), and an adjusting screw (8) is rotatably provided on the internal thread of the nut seat (7). The bottom end of the adjusting screw (8) extends into the U-shaped frame (6) and is rotatably connected to a pressure block (9).

2. The polymer cable clamp for a power transmission tower according to claim 1, characterized in that: Anti-slip pads are fixedly provided on the inner walls of the arc-shaped grooves on the lower clamping seat 1 (2), the lower clamping seat 2 (3) and the upper clamping seat (5).

3. The polymer cable clamp for a power transmission tower according to claim 1, characterized in that: Through holes (10) are provided at the four corners of the top end of the fixing plate (1).

4. The polymer cable clamp for a power transmission tower according to claim 1, characterized in that: A slide groove 1 (11) is provided at the top of the fixing plate (1), and an adjusting screw 2 (12) is rotatably embedded on a side of the fixing plate (1) away from the lower clamping seat 1 (2), and the other end of the adjusting screw 2 (12) extends into the slide groove 1 (11), and a slider 1 (13) is threadedly sleeved on the adjusting screw 2 (12) located in the slide groove 1 (11), and the top end of the slider 1 (13) is fixedly connected to the bottom end of the lower clamping seat 2 (3).

5. The polymer cable clamp for a power transmission tower according to claim 1, characterized in that: The locking bolts (4) are all slidably sleeved with springs (14), the bottom ends of the springs (14) respectively abut against the top ends of the adjacent lower clamping seats (2) or (3), and the top ends of the springs (14) abut against the bottom ends of the adjacent upper clamping seats (5).

6. The polymer cable clamp for a power transmission tower according to claim 1, characterized in that: A second slide groove (15) is provided on one side adjacent to the vertical parts of the U-shaped frame (6), and a second slide block (16) is slidably provided in the second slide groove (15), and the second slide block (16) is fixedly connected to a side adjacent to the pressing block (9).

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