Stable multipurpose iron tower hoisting support

Abstract

The utility model relates to the technical field of hoisting supports, in particular to a stable multipurpose iron tower hoisting support which comprises an iron tower angle steel frame and a hoisting support fixing piece matched with the iron tower angle steel frame, the hoisting support fixing piece comprises two L-shaped clamping blocks, and the right sides of the two L-shaped clamping blocks are jointly connected with a strip-shaped limiting plate. The hoisting support fixing part further comprises an L-shaped limiting plate, the left sides of the two L-shaped clamping blocks are jointly connected with a hoisting supporting plate, and the left side of the hoisting supporting plate is rotationally connected with a first guide wheel, a second guide wheel and a third guide wheel through a first fixing rod, a second fixing rod and a third fixing rod correspondingly. According to the stable multipurpose iron tower hoisting support, by means of the combined design of the L-shaped clamping blocks, the strip-shaped limiting plates, the L-shaped limiting plates and the threaded rods, a hoisting support fixing piece is stably fixed to an iron tower angle steel frame, and shaking and instability generated in the cross arm hoisting process are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting brackets, in particular to a stable and multi-purpose iron tower hoisting bracket. Background Technique

[0002] With the development of society, power facilities have become more and more perfect. Especially in rural areas, the tasks of power grid upgrading construction and transformation have become more onerous. During the construction process, the line usually needs to be laid on the cross arm of the iron tower. Therefore, it is necessary to first build the iron tower and then hoist the cross arm to the designated position. At present, a crane is usually used for hoisting. However, some iron towers are located in areas with complex terrains such as fields and slopes, and the crane cannot reach them. At this time, manual hoisting is required.

[0003] During the manual hoisting process, workers need to carry ropes and climb onto the iron tower, and then lift and install the cross arm. This method has a large labor intensity and is only suitable for relatively light and small cross arms. If a heavier cross arm needs to be hoisted, the worker must pass the rope through the angle steel frame of the iron tower and transport it to the ground, and the ground personnel use auxiliary equipment such as a winch for hoisting. However, the rope slides radially in the angle steel frame of the iron tower, is unstable, and is severely worn. The whole process is time-consuming and laborious, and the efficiency is low.

[0004] The patent with the publication number CN205911667U discloses a hoisting bracket for a distribution line cross arm, including a right-angle bracket buckled on the angle steel frame of the iron tower. A through first bolt is arranged on the upper surface of the bracket; a clamping block I is sleeved at the end of the first bolt; the clamping block I blocks one side of the angle steel frame of the iron tower; a anti-disengagement hook extending towards one side of the angle steel frame of the iron tower is arranged below the clamping block I; a second bolt is arranged below the right-angle bracket; a clamping block II stuck on the angle steel frame of the iron tower is arranged at the end of the second bolt; a fixed shaft vertically connected is arranged on one side of the right-angle bracket; a roller for connecting a steel wire rope is sleeved on the fixed shaft; a pin is arranged on one side of the fixed shaft. The utility model effectively solves the technical problems of inconvenient lifting, time-consuming and laborious of the existing iron tower cross arm by setting a right-angle bracket on the angle steel frame at the top of the iron tower and hoisting the cross arm through the roller on the bracket.

[0005] The above-mentioned prior art uses the roller on the hoisting bracket to hoist the cross arm, which solves the problems of inconvenient lifting, time-consuming and laborious in the traditional method. However, in this technical solution, the cross arm is prone to rotation when being pulled by a single steel wire rope, which is likely to cause the cross arm to collide with the iron tower, and may even damage the iron tower structure, there is a certain safety risk. In view of this, we propose a stable and multi-purpose iron tower hoisting bracket. Content of the Utility Model

[0006] The purpose of the utility model is to provide a stable and multi-purpose iron tower hoisting bracket to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A stable multi-purpose tower hoisting bracket, including a tower angle steel frame and a hoisting bracket fixing member adapted to the tower angle steel frame. The hoisting bracket fixing member can be installed on the tower angle steel frame. The hoisting bracket fixing member includes two L-shaped clamping blocks arranged symmetrically front and back to provide preliminary fixing and support. A strip-shaped limiting plate is commonly connected to the right sides of the two L-shaped clamping blocks. A strip-shaped connecting plate is arranged between the two L-shaped clamping blocks and at the bottom position. The strip-shaped connecting plate connects the two L-shaped clamping blocks together. A threaded through groove is opened in the middle of the bottom of the strip-shaped connecting plate. The hoisting bracket fixing member further includes an L-shaped limiting plate. The strip-shaped limiting plate and the L-shaped limiting plate cooperate to make the two L-shaped clamping blocks clamped on the tower angle steel frame, so that the position of the hoisting bracket fixing member is fixed. A circular hole b is opened at the bottom of the L-shaped limiting plate. A threaded rod is connected in the circular hole b. The top end of the threaded rod passes through the circular hole b and is threadedly connected to the threaded through groove. An annular abutting block is arranged on the outer wall of the threaded rod and near the bottom end. The positions of the L-shaped limiting plate and the strip-shaped connecting plate are fixed by the threaded rod and the annular abutting block, which is convenient for the staff to disassemble and assemble the L-shaped limiting plate, and thus convenient for the staff to disassemble and assemble the hoisting bracket fixing member;

[0009] A hoisting support plate is commonly connected to the left sides of the two L-shaped clamping blocks. As the main bearing surface, it is used to install the fixing rod and the guide wheel. A first fixing rod is arranged on the left side of the hoisting support plate and near the front end of the bottom. A first guide wheel is rotatably connected to the first fixing rod. A second fixing rod is arranged on the left side of the hoisting support plate and near the rear end of the bottom. A second guide wheel is rotatably connected to the second fixing rod. A second steel wire rope is wound around the second guide wheel. A third fixing rod is arranged on the left side of the hoisting support plate and near the top of the second fixing rod. A third guide wheel is rotatably connected to the third fixing rod. The third guide wheel and the first guide wheel commonly wind a first steel wire rope. The third guide wheel is located behind and above the second guide wheel, so that the first steel wire rope and the second steel wire rope are misaligned to avoid mutual influence. One ends of the first steel wire rope and the second steel wire rope are commonly connected to the tower cross arm. The other ends of the first steel wire rope and the second steel wire rope are respectively connected to two winches, and the two winches work synchronously, so that the first steel wire rope and the second steel wire rope are wound or payed out synchronously, realizing the lifting of the tower cross arm. Since the two steel wire ropes pull the two ends of the tower cross arm, the rotation of the tower cross arm can be effectively reduced, and thus the risk of collision between the tower cross arm and the tower can be effectively reduced.

[0010] Preferably, the top of the inner wall of the L-shaped clamping block is attached to the top of the tower angle steel frame, and the left side of the inner wall of the L-shaped clamping block is attached to the left side of the tower angle steel frame to provide preliminary fixing and support.

[0011] Preferably, the left side of the strip-shaped connecting plate abuts against the right side of the tower angle steel frame, and the right side of the inner wall of the L-shaped limiting plate abuts against the left side of the inner wall of the tower angle steel frame. The strip-shaped connecting plate cooperating with the L-shaped limiting plate can ensure the fixed position of the L-shaped clamping block and the tower angle steel frame.

[0012] Preferably, two circular holes a arranged symmetrically front and back are opened at the bottom of the strip-shaped connecting plate, and two positioning rods arranged symmetrically front and back are provided at the bottom of the inner wall of the L-shaped limiting plate. The two positioning rods respectively pass through the two circular holes a to improve the stability of the L-shaped limiting plate.

[0013] Preferably, a knob is provided at the bottom end of the threaded rod to facilitate the staff to rotate the threaded rod. The top of the annular abutting block abuts against the bottom of the L-shaped limiting plate to ensure that the annular abutting block can position the L-shaped limiting plate.

[0014] Preferably, the hoisting support plate is of a U-shaped structure to avoid hindering the staff from rotating the threaded rod. Three L-shaped fixing plates are provided on the left side of the hoisting support plate. The left ends of the first fixing rod, the second fixing rod and the third fixing rod are respectively fixedly connected to the inner sides of the three L-shaped fixing plates to improve the stability of the first fixing rod, the second fixing rod and the third fixing rod.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. For the stable and multi-purpose tower hoisting bracket, by using the combined design of the L-shaped clamping block, the strip-shaped limiting plate, the L-shaped limiting plate and the threaded rod, the fixing part of the hoisting bracket is stably fixed on the tower angle steel frame, reducing the shaking and instability generated during the hoisting of the cross arm, and can adapt to towers of different heights, not limited to the hoisting of the tower cross arm. When using a single steel wire rope, it can also be used for the hoisting of cables, improving the applicability and versatility.

[0017] 2. For the stable and multi-purpose tower hoisting bracket, by simultaneously pulling the two ends of the cross arm by two steel wire ropes, the possibility of the cross arm rotating is reduced, the risk of the cross arm colliding with the tower is reduced, and the construction safety is improved.

[0018] 3. For the stable and multi-purpose tower hoisting bracket, the design of the threaded rod and the knob in the design facilitates the quick disassembly and assembly of the L-shaped limiting plate, so that the fixing part of the hoisting bracket can be installed and disassembled more conveniently to adapt to different construction environments.

[0019] 4. For the stable and multi-purpose tower hoisting bracket, the setting of the guide wheel makes the steel wire rope smoother during use, avoids direct friction with the tower angle steel frame, effectively reduces wear, and improves the service life. Description of the Drawings

[0020] Figure 1Schematic diagram of the overall first perspective of the present utility model;

[0021] Figure 2 Schematic diagram of the overall second perspective of the present utility model;

[0022] Figure 3 Schematic diagram of the overall third perspective of the present utility model;

[0023] Figure 4 Partial schematic diagram of the present utility model;

[0024] Figure 5 Exploded structural schematic diagram of the hoisting support fixing part in the present utility model;

[0025] In the figure: 1, iron tower angle steel frame; 2, hoisting support fixing part; 20, L-shaped clamping block; 21, strip-shaped limiting plate; 22, strip-shaped connecting plate; 220, threaded through groove; 221, circular hole a; 23, L-shaped limiting plate; 230, circular hole b; 231, positioning rod; 24, threaded rod; 240, annular abutting block; 241, knob; 3, hoisting support plate; 30, first fixing rod; 31, second fixing rod; 32, third fixing rod; 33, first guiding wheel; 34, second guiding wheel; 35, third guiding wheel; 36, L-shaped fixing plate; 4, first steel wire rope; 5, second steel wire rope. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model.

[0028] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0029] A stable multi-purpose tower hoisting bracket, including a tower angle steel frame 1 and a hoisting bracket fixing part 2 adapted to the tower angle steel frame 1. The hoisting bracket fixing part 2 can be installed on the tower angle steel frame 1. The hoisting bracket fixing part 2 includes two L-shaped clamping blocks 20 arranged symmetrically front and back to provide preliminary fixation and support. A strip-shaped limiting plate 21 is commonly connected to the right sides of the two L-shaped clamping blocks 20. A strip-shaped connecting plate 22 is arranged between the two L-shaped clamping blocks 20 and at the bottom position. The strip-shaped connecting plate 22 connects the two L-shaped clamping blocks 20 together. A threaded through groove 220 is opened in the middle of the bottom of the strip-shaped connecting plate 22. The hoisting bracket fixing part 2 further includes an L-shaped limiting plate 23. The strip-shaped limiting plate 21 and the L-shaped limiting plate 23 cooperate to clamp the two L-shaped clamping blocks 20 on the tower angle steel frame 1, so that the position of the hoisting bracket fixing part 2 is fixed. A circular hole b230 is opened at the bottom of the L-shaped limiting plate 23. A threaded rod 24 is connected in the circular hole b230. The top end of the threaded rod 24 passes through the circular hole b230 and is threadedly connected in the threaded through groove 220. An annular abutting block 240 is arranged on the outer wall of the threaded rod 24 and near the bottom end. The positions of the L-shaped limiting plate 23 and the strip-shaped connecting plate 22 are fixed by the threaded rod 24 and the annular abutting block 240, which is convenient for workers to disassemble and assemble the L-shaped limiting plate 23, and thus convenient for workers to disassemble and assemble the hoisting bracket fixing part 2;

[0030] A hoisting support plate 3 is commonly connected to the left sides of the two L-shaped clamping blocks 20. As the main bearing surface, it is used to install the fixing rod and the guiding wheel. A first fixing rod 30 is arranged on the left side of the hoisting support plate 3 and near the front end of the bottom. A first guiding wheel 33 is rotatably connected to the first fixing rod 30. A second fixing rod 31 is arranged on the left side of the hoisting support plate 3 and near the rear end of the bottom. A second guiding wheel 34 is rotatably connected to the second fixing rod 31. A second steel wire rope 5 is wound around the second guiding wheel 34. A third fixing rod 32 is arranged on the left side of the hoisting support plate 3 and near the top of the second fixing rod 31. A third guiding wheel 35 is rotatably connected to the third fixing rod 32. A first steel wire rope 4 is commonly wound around the third guiding wheel 35 and the first guiding wheel 33. The third guiding wheel 35 is located behind and above the second guiding wheel 34, so that the first steel wire rope 4 and the second steel wire rope 5 are misaligned to avoid mutual influence. One ends of the first steel wire rope 4 and the second steel wire rope 5 are commonly connected to the tower cross arm. The other ends of the first steel wire rope 4 and the second steel wire rope 5 are respectively connected to two winches, and the two winches work synchronously, so that the first steel wire rope 4 and the second steel wire rope 5 are wound or payed out synchronously, realizing the lifting of the tower cross arm. Since the two steel wire ropes tow the two ends of the tower cross arm, the rotation of the tower cross arm can be effectively reduced, and thus the risk of collision between the tower cross arm and the tower can be effectively reduced.

[0031] In this embodiment, the top of the inner wall of the L-shaped clamping block 20 is attached to the top of the tower angle steel frame 1, and the left side of the inner wall of the L-shaped clamping block 20 is attached to the left side of the tower angle steel frame 1 to provide preliminary fixation and support.

[0032] Specifically, the left side of the strip-shaped connecting plate 22 abuts against the right side of the iron tower angle steel frame 1, and the right side of the inner wall of the L-shaped limiting plate 23 abuts against the left side of the inner wall of the iron tower angle steel frame 1. The strip-shaped connecting plate 22 cooperating with the L-shaped limiting plate 23 can ensure the fixed position of the L-shaped clamping block 20 and the iron tower angle steel frame 1.

[0033] Furthermore, two circular holes a221 arranged symmetrically front and back are formed at the bottom of the strip-shaped connecting plate 22, and two positioning rods 231 arranged symmetrically front and back are provided at the bottom of the inner wall of the L-shaped limiting plate 23. The two positioning rods 231 respectively pass through the two circular holes a221 to improve the stability of the L-shaped limiting plate 23.

[0034] Furthermore, a knob 241 is provided at the bottom end of the threaded rod 24, which is convenient for the staff to rotate the threaded rod 24. The top of the annular abutting block 240 abuts against the bottom of the L-shaped limiting plate 23 to ensure that the annular abutting block 240 can position the L-shaped limiting plate 23.

[0035] Furthermore, the hoisting support plate 3 is of a U-shaped structure to avoid hindering the staff from rotating the threaded rod 24. Three L-shaped fixing plates 36 are provided on the left side of the hoisting support plate 3, and the left ends of the first fixing rod 30, the second fixing rod 31 and the third fixing rod 32 are respectively fixedly connected to the inner sides of the three L-shaped fixing plates 36 to improve the stability of the first fixing rod 30, the second fixing rod 31 and the third fixing rod 32.

[0036] When the stable multi-purpose tower hoisting bracket of this embodiment is in use, first, fix two L-shaped blocks 20 on the tower angle steel frame 1, move the two L-shaped blocks 20 from top to bottom, so that the left side of the strip-shaped limiting plate 21 abuts against the right side of the tower angle steel frame 1, and then tighten the threaded rod 24. Drive the L-shaped limiting plate 23 to move upward through the threaded rod 24 and the annular abutting block 240, and press it against the bottom of the tower angle steel frame 1. The right side of the inner wall of the L-shaped limiting plate 23 abuts against the left side of the inner wall of the tower angle steel frame 1. The strip-shaped connecting plate 22 and the L-shaped limiting plate 23 can ensure the position fixation of the L-shaped block 20 and the tower angle steel frame 1. At this time, the hoisting support plate 3 serves as the main bearing surface. Wind the first steel wire rope 4 around the first guide wheel 33 and the third guide wheel 35, and wind the second steel wire rope 5 around the second guide wheel 34 to ensure that the two steel wire ropes are arranged in a staggered manner to avoid mutual influence. Next, fix one end of the first steel wire rope 4 and the second steel wire rope 5 on the tower cross arm, and connect the other ends to two synchronously working winches respectively. Start the winches to make the first steel wire rope 4 and the second steel wire rope 5 wind synchronously, and steadily lift the tower cross arm by double steel wire rope traction, reduce the rotation of the cross arm, and reduce the collision risk. Finally, use the knob 241 on the threaded rod 24 to adjust or disassemble the L-shaped limiting plate 23 so as to replace or move the hoisting bracket fixing part 2. Through the above steps, the hoisting bracket can efficiently and safely complete the hoisting task of the tower cross arm, and is particularly suitable for areas with complex terrain and not suitable for crane operation.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable multi-purpose tower hoisting bracket, comprising a tower angle steel frame (1) and a hoisting bracket fixing part (2) adapted to the tower angle steel frame (1), characterized in that: The hoisting bracket fixing member (2) includes two L-shaped clamping blocks (20) arranged symmetrically front and back. A strip-shaped limiting plate (21) is connected to the right sides of the two L-shaped clamping blocks (20). A strip-shaped connecting plate (22) is provided between the two L-shaped clamping blocks (20) and at the bottom position. A threaded through groove (220) is formed in the middle of the bottom of the strip-shaped connecting plate (22). The hoisting bracket fixing member (2) further includes an L-shaped limiting plate (23). A circular hole b (230) is formed in the bottom of the L-shaped limiting plate (23). A threaded rod (24) is connected in the circular hole b (230). The top end of the threaded rod (24) passes through the circular hole b (230) and is threadedly connected in the threaded through groove (220). An annular abutting block (240) is provided on the outer wall of the threaded rod (24) and near the bottom end. A hoisting support plate (3) is connected to the left sides of the two L-shaped clamping blocks (20). A first fixing rod (30) is provided on the left side of the hoisting support plate (3) and near the front end of the bottom. A first guiding wheel (33) is rotatably connected to the first fixing rod (30). A second fixing rod (31) is provided on the left side of the hoisting support plate (3) and near the rear end of the bottom. A second guiding wheel (34) is rotatably connected to the second fixing rod (31). A second steel wire rope (5) is wound around the second guiding wheel (34). A third fixing rod (32) is provided on the left side of the hoisting support plate (3) and near the top of the second fixing rod (31). A third guiding wheel (35) is rotatably connected to the third fixing rod (32). A first steel wire rope (4) is wound around the third guiding wheel (35) and the first guiding wheel (33) together.

2. The stable multi-purpose iron tower hoisting bracket according to claim 1, characterized in that: The top of the inner wall of the L-shaped clamping block (20) is in contact with the top of the iron tower angle steel frame (1), and the left side of the inner wall of the L-shaped clamping block (20) is in contact with the left side of the iron tower angle steel frame (1).

3. The stable multi-purpose tower hoisting bracket according to claim 1, wherein: The left side of the strip-shaped connecting plate (22) abuts against the right side of the iron tower angle steel frame (1), and the right side of the inner wall of the L-shaped limiting plate (23) abuts against the left side of the inner wall of the iron tower angle steel frame (1).

4. The stable multi-purpose tower hoisting bracket according to claim 1, characterized in that: Two circular holes a (221) arranged symmetrically front and back are formed in the bottom of the strip-shaped connecting plate (22). Two positioning rods (231) arranged symmetrically front and back are provided on the bottom of the inner wall of the L-shaped limiting plate (23). The two positioning rods (231) respectively pass through the two circular holes a (221).

5. The stable multi-purpose tower hoisting bracket according to claim 1, characterized in that: A knob (241) is provided at the bottom end of the threaded rod (24), and the top of the annular abutting block (240) abuts against the bottom of the L-shaped limiting plate (23).

6. The stable multi-purpose tower hoisting bracket according to claim 1, wherein: The hoisting support plate (3) is of a U-shaped structure. Three L-shaped fixing plates (36) are provided on the left side of the hoisting support plate (3). The left ends of the first fixing rod (30), the second fixing rod (31), and the third fixing rod (32) are respectively fixedly connected to the inner sides of the three L-shaped fixing plates (36).

Images