A tower prestressed cable connection structure

Abstract

The present invention relates to the field of prestressed cable connection technology, and in particular to a tower prestressed cable connection structure. Since the prestressed cable body is in a high stress state for a long time, it is easily affected by the external environment, resulting in a decrease in strength or even breakage, and there is an uneven stress distribution problem at the anchoring node between the cable body and the tower, which may cause local deformation or relaxation, resulting in local deformation or relaxation of the prestressed cable. After the prestressed cable is loosened, it is easy to cause structural deformation or a decrease in bearing capacity of the building, resulting in overall structural imbalance. A tower prestressed cable connection structure, comprising: a screw, a hook fixed to the screw, and a rotating ring connected to the screw by a thread. When the sliding frame moves in the reverse direction, it will drive the prestressed cable to move in the reverse direction under the action of the sliding rod and the buckle, and then automatically tighten the prestressed cable when it becomes loose, avoiding structural deformation or a decrease in bearing capacity of the building due to stress relaxation, and maintaining the balance of the structure.

Description

Technical Field

[0001] The present invention relates to the technical field of prestressed cable connection, and in particular to a tower prestressed cable connection structure. Background Art

[0002] In modern engineering, tall tower structures are widely used in industries such as wind power, communications, and power transmission. Offshore wind turbine towers, for example, must withstand strong winds, wave impacts, and complex geological conditions. Communications towers, on the other hand, must firmly support antenna equipment in diverse climates to ensure stable signal transmission. As engineering requirements continue to escalate, tower heights continue to increase, and loads become more complex. Traditional structural forms can no longer meet safety and economic requirements. Prestressed cable technology, by pre-applying tension, can actively adjust the tower's stress state, significantly improving structural stiffness and wind and earthquake resistance. Therefore, it has become a core method for optimizing the mechanical properties of towers.

[0003] Since the prestressed cable body is in a high stress state for a long time, it is easily affected by the external environment, resulting in a decrease in strength or even breakage. In addition, there is an uneven stress distribution problem at the anchoring node between the cable body and the tower, which may cause local deformation or relaxation, resulting in local deformation or relaxation of the prestressed cable. Once the prestressed cable is loose, it is easy to cause structural deformation or a decrease in bearing capacity of the building, resulting in overall structural imbalance. Summary of the Invention

[0004] In order to overcome the above shortcomings, the present invention provides a tower prestressed cable connection structure, which can lock the prestressed cable when it becomes loose, preventing the loosening from being too large and affecting the structural safety, and can reversely tighten the prestressed cable to keep the prestressed cable in a tightened state, thereby improving the stability of the overall structure.

[0005] The technical implementation scheme of the present invention is: a tower prestressed cable connection structure, including: a screw rod, a hook fixed to the screw rod, a rotating ring connected to the screw rod by a thread, a fixed frame connected to the rotating ring by a thread, a sliding frame slidably connected to the fixed frame, a conical cylinder connected to the sliding frame by a thread, a locking assembly is provided on the conical cylinder, the prestressed cable passes through the conical cylinder and the sliding frame, the sliding frame is provided with a locking mechanism for locking the prestressed cable, the fixed frame is provided with a tensioning mechanism for tensioning the prestressed cable, and the tensioning mechanism is connected to the fixed frame.

[0006] Furthermore, the positioning assembly includes three blocks and a reinforcing rib, the three blocks are fixedly connected to the reinforcing rib, the three blocks are clamped on the prestressed cable through the reinforcing rib, and the three blocks and the reinforcing rib are all located in the conical cylinder.

[0007] Furthermore, the locking mechanism includes: a sliding rod slidably connected to the sliding frame, a connecting frame fixed to the sliding rod, two clamping blocks fixed to the connecting frame, and a tension spring connected between the sliding rod and the sliding frame.

[0008] Furthermore, the two clamping blocks are both arranged obliquely.

[0009] Furthermore, the tensioning mechanism includes: two fixed rods fixed to the fixed frame, two connecting rods are rotatably connected to the two fixed rods, four connecting rods are slidably connected to the sliding rod, four sliding blocks are slidably connected to the fixed frame, the four connecting rods are slidably connected to the four sliding blocks, and two fasteners are fixed to the prestressed cable by screws, and the two fasteners are clamped with the sliding rod.

[0010] Furthermore, a limiting mechanism for stabilizing the prestressed cable is included, and the limiting mechanism includes: two rotating plates rotatably connected to the conical cylinder, and the two rotating plates are respectively fixed with fixed plates.

[0011] Furthermore, both of the fixing plates are provided with a slot.

[0012] Furthermore, an alarm mechanism for alarming is also included, and the alarm mechanism includes: alarms arranged on both sides of the sliding frame, and buttons are provided on both alarms.

[0013] The present invention has the following advantages: 1. When the sliding rod moves, the sliding frame will move, and when the connecting frame moves, the clamping block will move. When the clamping block moves, the sliding frame will squeeze the two clamping blocks. When the pulling distance of the prestressed cable exceeds the safe range, the two clamping blocks will clamp the prestressed cable, and the sliding frame will press against the two clamping blocks, so that the prestressed cable will no longer move, and then the prestressed cable will be locked when it becomes loose, thereby preventing the prestressed cable from loosening and detaching, thereby enhancing the connection stability of the prestressed cable.

[0014] 2. When the sliding frame moves in the opposite direction, it will drive the prestressed cable to move in the opposite direction under the action of the sliding rod and the fastener, and then automatically tighten the prestressed cable when it becomes loose, so as to avoid structural deformation or reduction of bearing capacity of the building due to stress relaxation and maintain the balance of the structure.

[0015] 3. When the safety range is exceeded, the button on the alarm will contact the fixing frame, triggering the alarm, thereby reminding the staff to make corresponding adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of a partially disassembled three-dimensional structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the locking mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the tensioning mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the alarm mechanism of the present invention.

[0023] In the above drawings: 12, prestressed cable; 1, screw; 2, hook; 3, rotating ring; 4, fixed frame; 5, sliding frame; 6, tapered cylinder; 7, locking assembly; 8, locking mechanism; 81, sliding rod; 82, connecting frame; 83, clamping block; 84, tension spring; 9, tensioning mechanism; 91, fixed rod; 92, connecting rod; 93, sliding block; 94, fastener; 10, limiting mechanism; 101, rotating plate; 102, fixed plate; 11, alarm mechanism; 111, alarm; 112, button. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] A tower prestressed cable connection structure, such as Figure 1-Figure 3 As shown, it includes: a screw 1, a hook 2 fixed to the screw 1, a rotating ring 3 connected to the screw 1 by a thread, a fixed frame 4 connected to the rotating ring 3 by a thread, a sliding frame 5 slidably connected to the fixed frame 4, a tapered cylinder 6 connected to the sliding frame 5 by a thread, a locking assembly 7 is provided on the tapered cylinder 6, a prestressed cable 12 passes through the tapered cylinder 6 and the sliding frame 5, the sliding frame 5 is provided with a locking mechanism 8 for locking the prestressed cable 12, the fixed frame 4 is provided with a tensioning mechanism 9 for tensioning the prestressed cable 12, and the tensioning mechanism 9 is connected to the fixed frame 4.

[0026] like Figure 3As shown, the positioning assembly 7 includes three blocks and a reinforcing rib. The three blocks are fixedly connected to the reinforcing rib. The three blocks are clamped on the prestressed cable 12 through the reinforcing rib. The three blocks and the reinforcing rib are all located in the conical tube 6.

[0027] like Figure 1 and Figure 4 As shown, the locking mechanism 8 includes: a sliding rod 81 slidably connected to the sliding frame 5, a connecting frame 82 fixed to the sliding rod 81, two clamping blocks 83 fixed to the connecting frame 82, the two clamping blocks 83 are both obliquely arranged, and a tension spring 84 is connected between the sliding rod 81 and the sliding frame 5.

[0028] like Figure 1 and Figure 5 As shown, the tensioning mechanism 9 includes: two fixed rods 91 fixed to the fixed frame 4, two connecting rods 92 are rotatably connected to the two fixed rods 91, and the four connecting rods 92 are all slidably connected to the sliding rod 81, four sliding blocks 93 slidably connected to the fixed frame 4, and the four connecting rods 92 are slidably connected to the four sliding blocks 93 respectively, and two fastening parts 94 fixed to the prestressed cable 12 by screws, and the two fastening parts 94 are clamped with the sliding rod 81.

[0029] When the prestressed cable 12 needs to be connected, the staff first passes the prestressed cable 12 through the conical cylinder 6, then puts the block of the clamping assembly 7 and the reinforcement bar on the prestressed cable 12, and then fixes the two fastening parts 94 to one end of the prestressed cable 12 by screws, and clamps the fastening part 94 with the sliding rod 81, then hooks the hook 2 on the anchor column, and uses the screw to turn the rotating ring 3 according to the tightness of the prestressed cable 12. The rotation of the rotating ring 3 will tighten the prestressed cable 12 under the action of the threads of the screw 1 and the sliding rod 81, completing the connection of the prestressed cable 12. When the prestressed cable 12 becomes loose due to thermal expansion and contraction or other factors, the prestressed cable 12 will be pulled outward, and the prestressed cable 12 will pull the sliding rod 81 to move through the fastening part 94, the tension spring 84 is stretched, and the sliding rod 81 moves while driving the sliding frame 5 to move, and the connecting frame 82 moves while driving the clamping block. When the cam 83 moves, the sliding frame 5 will squeeze the two clamping blocks 83. When the pulling distance of the prestressed cable 12 exceeds the safe range, the two clamping blocks 83 will clamp the prestressed cable 12, and the sliding frame 5 will press against the two clamping blocks 83, so that the prestressed cable 12 will no longer move, and then the prestressed cable 12 will be locked when it becomes loose, and at the same time prevent the prestressed cable 12 from loosening and detaching, thereby enhancing the connection stability of the prestressed cable 12; when the sliding rod 81 moves, the connecting rod 92 will rotate around the fixed rod 91, and the connecting rod 92 will push the sliding block 93 to move in the opposite direction when it rotates. When the sliding block 93 moves in the opposite direction, it will push the sliding frame 5 to move in the opposite direction. When the sliding frame 5 moves in the opposite direction, it will drive the prestressed cable 12 to move in the opposite direction under the action of the sliding rod 81 and the fastener 94, and then automatically tighten the prestressed cable 12 when it becomes loose.

[0030] like Figure 1 and Figure 6 As shown, a limiting mechanism 10 for stabilizing the prestressed cable 12 is also included. The limiting mechanism 10 includes: two rotating plates 101 rotatably connected to the conical cylinder 6, and the two rotating plates 101 are respectively fixed with fixed plates 102. The two fixed plates 102 are provided with slots, and the slots on the two fixed plates 102 are used to prevent the prestressed cable 12 from deflecting.

[0031] After the hook 2 is hooked on the anchor column, the two rotating plates 101 can be rotated so that the two fixing plates 102 clamp the prestressed cable 12 in the middle, and the prestressed cable 12 is fixed by screws to enhance the stability and strength of the overall connection structure.

[0032] like Figure 1 and Figure 7 As shown, an alarm mechanism 11 for alarming is also included. The alarm mechanism 11 includes alarms 111 arranged on both sides of the sliding frame 5 , and buttons 112 are provided on both alarms 111 .

[0033] When the sliding plate moves in the opposite direction, the alarm 111 will be driven to move. When the safety range is exceeded, the button 112 on the alarm 111 will contact the fixing frame 4, triggering the alarm 111, thereby reminding the staff to make corresponding adjustments.

[0034] Working principle: First, pass the prestressed cable 12 through the conical cylinder 6, then put the block and rubber band of the clamping assembly 7 on the prestressed cable 12, and then fix the two fasteners 94 to one end of the prestressed cable 12 with screws, and clamp the fastener 94 with the sliding rod 81, then hook the hook 2 on the anchor column, and rotate the two rotating plates 101 so that the two fixed plates 102 clamp the prestressed cable 12 in the middle, and fix the prestressed cable 12 with screws to enhance the stability and strength of the overall connection structure. The staff adjusts the tightness of the prestressed cable 12 according to the screws. The rotating ring 3 is rotated. The rotation of the rotating ring 3 will tighten the prestressed cable 12 under the action of the threads of the screw rod 1 and the sliding rod 81, completing the connection of the prestressed cable 12. When the prestressed cable 12 becomes loose due to thermal expansion and contraction or other factors, the prestressed cable 12 will be pulled outward. The prestressed cable 12 will pull the sliding rod 81 to move through the buckle 94, and the tension spring 84 will be stretched. When the sliding rod 81 moves, it will also drive the sliding frame 5 to move. When the connecting frame 82 moves, it will also drive the clamping block 83 to move. When the clamping block 83 moves, the sliding frame 5 will squeeze the two clamping blocks 83. When the pulling distance of the prestressed cable 12 exceeds the safe range, the two clamping blocks 83 will clamp the prestressed cable 12, and the sliding frame 5 will press against the two clamping blocks 83, so that the prestressed cable 12 will no longer move, and then the prestressed cable 12 will be locked when the prestressed cable 12 becomes loose, and at the same time prevent the prestressed cable 12 from loosening and detaching, thereby enhancing the connection stability of the prestressed cable 12; when the sliding rod 81 moves, the connecting rod 92 will rotate around the fixed rod 91, and when the connecting rod 92 rotates, it will push the sliding block 93 to move in the opposite direction, and when the sliding block 93 moves in the opposite direction, it will push the sliding The frame 5 moves in the reverse direction. When the sliding frame 5 moves in the reverse direction, it will drive the prestressed cable 12 to move in the reverse direction under the action of the sliding rod 81 and the fastener 94, and then automatically tighten the prestressed cable 12 when it becomes loose, so as to avoid structural deformation or reduction of bearing capacity of the building due to stress relaxation, and maintain the balance of the structure; when the sliding plate moves in the reverse direction, it will drive the alarm 111 to move. When it exceeds the safety range, the button 112 on the alarm 111 will contact the fixed frame 4, triggering the alarm 111, thereby reminding the staff to make corresponding adjustments.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A tower prestressed cable connection structure, characterized by: include: A screw rod (1), a hook (2) fixed to the screw rod (1), a rotating ring (3) connected to the screw rod (1) by a thread, a fixed frame (4) connected to the rotating ring (3) by a thread, a sliding frame (5) slidably connected to the fixed frame (4), a conical cylinder (6) connected to the sliding frame (5) by a thread, a clamping assembly (7) provided on the conical cylinder (6), a prestressed cable (12) passing through the conical cylinder (6) and the sliding frame (5), a locking mechanism (8) provided on the sliding frame (5), a tensioning mechanism (9) provided on the fixed frame (4), the tensioning mechanism (9) being connected to the fixed frame (4), the locking mechanism (8) comprising: a sliding rod (81) slidably connected to the sliding frame (5), a connecting frame (82) fixed to the sliding rod (81), two clamping blocks (83) fixed to the connecting frame (82), a sliding rod (81) and the sliding frame (5) is connected with a tension spring (84), the tensioning mechanism (9) comprises: two fixed rods (91) fixed on the fixed frame (4), two connecting rods (92) are respectively rotatably connected to the two fixed rods (91), the four connecting rods (92) are all slidably connected to the sliding rod (81), four sliding blocks (93) slidably connected to the four fixed frame (4), the four connecting rods (92) are respectively slidably connected to the four sliding blocks (93), two fastening members (94) fixed on the prestressed cable (12) by screws, the two fastening members (94) are clamped with the sliding rod (81), and a limiting mechanism (10) for stabilizing the prestressed cable (12) is also included, the limiting mechanism (10) comprises: two rotating plates (101) rotatably connected to the conical cylinder (6), and the two rotating plates (101) are respectively fixed with fixed plates (102).

2. A tower prestressed cable connection structure according to claim 1, characterized in that: The clamping assembly (7) comprises three clamping blocks and a reinforcing rib, the three clamping blocks are fixedly connected to the reinforcing rib, the three clamping blocks are clamped on the prestressed cable (12) through the reinforcing rib, and the three clamping blocks and the reinforcing rib are all located in the conical cylinder (6).

3. A tower prestressed cable connection structure according to claim 1, characterized in that: The two clamping blocks (83) are both arranged obliquely.

4. A tower prestressed cable connection structure according to claim 1, characterized in that: Both of the fixing plates (102) are provided with a slot.

5. A tower prestressed cable connection structure according to claim 1, characterized in that: An alarm mechanism (11) for alarming is also included. The alarm mechanism (11) includes alarms (111) provided on both sides of the sliding frame (5). Both alarms (111) are provided with buttons (112).

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