Extra-high voltage paying-off tackle
By designing a limiting component on the wire-laying trolley, the problem of angular deviation of the wire-laying trolley was solved, and the angle was stably locked, thus improving the accuracy and safety of the wire-laying operation.
Patent Information
- Application Number
- CN202423191935.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing UHV cable laying pulleys lack an effective locking mechanism after being adjusted to the appropriate angle, making them susceptible to interference from external factors such as wind or vibration, which can cause angle deviation and affect the accuracy and safety of cable laying operations.
A limiting component was designed, including a fixed base, a toothed ring, a slide bar, a locking tooth, and a spring. Through the meshing of the tooth groove and the locking tooth, the hook and connecting block are stably limited to prevent angular deviation.
It effectively prevents the angle of the laying pulley from deviating, ensuring the accuracy and safety of the laying operation, avoiding wear or damage to the conductor, and improving construction efficiency.
Smart Images
Figure CN223665929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire laying pulley technology, specifically an ultra-high voltage wire laying pulley. Background Technology
[0002] Ultra-high voltage (UHV) power transmission line laying pulleys are specialized machines used in the tension laying construction of overhead transmission lines to support the erection of various conductors and ground wires. Also known as laying pulleys or laying devices, these pulleys are suspended under the crossarm of the tower and provide support for the conductors and ground wires. Under the traction force of the conductors and ground wires (optical cables), the laying pulley rotates around its central axis, thereby reducing the traction resistance during laying.
[0003] As a key piece of equipment in the tension stringing construction of overhead transmission lines, the stability and reliability of the stringing pulley directly affect the safety and efficiency of the entire stringing operation. In actual construction, the stringing pulley is typically suspended under the crossarm of the tower to support and guide the conductors (including optical cables). To adapt to different terrains and erection requirements, the hook and connecting frame of the stringing pulley are designed with a swingable structure, facilitating angle adjustment to accommodate the conductor's direction.
[0004] However, existing wire-laying pulleys lack an effective locking mechanism to maintain their position after being adjusted to the appropriate angle. Once disturbed by external wind, vibration, or other factors, the angle of the wire-laying pulley may shift, which not only affects the accuracy and efficiency of the wire-laying operation but may also cause unnecessary wear or damage to the conductor, or even lead to safety accidents. Utility Model Content
[0005] The purpose of this invention is to provide an ultra-high voltage power line laying pulley to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultra-high voltage cable laying trolley, comprising a connecting frame, a pulley rotatably connected to the inner side of the connecting frame, a rotating rod disposed on the surface of the connecting frame, the rotating rod penetrating the connecting frame and rotatably connected to the connecting frame, a connecting block penetrating the rotating rod, the connecting block being fixedly connected to the rotating rod, a hook mounted on the surface of the connecting block, and limiting components for preventing deviation disposed on the surfaces of the connecting frame and the connecting block, the limiting components comprising:
[0007] A fixing seat is fixed to the surface of the connecting frame. The fixing seat has a cavity inside, and a toothed ring is rotatably connected to the inner wall of the cavity.
[0008] Preferably, the limiting component further includes a short rod, which is rotatably connected to the inner wall of the cavity. A first locking tooth and a second locking tooth are fixed to the surface of the short rod. The first locking tooth engages with a toothed ring. A sliding rod is provided inside the cavity, slidably connected to the inner wall of the cavity. The sliding rod passes through a fixed seat, and a toothed groove is formed on the surface of the sliding rod. A first spring is fixed to the surface of the sliding rod, with the end of the first spring away from the sliding rod fixed to the inner wall of the cavity. A limiting groove is formed on the surface of the rotating rod, and the toothed groove engages with the second locking tooth. The limiting component also includes a movable part. The rotating rod drives the connecting block and hook to rotate relative to the connecting frame. Through the rotation of the sliding rod, the first spring, the toothed groove, the second locking tooth, the short rod, and the first locking tooth, the sliding rod reciprocates into the limiting groove without affecting the normal rotation of the rotating rod.
[0009] Preferably, the movable component includes a connecting plate fixed to the surface of the gear ring. A through hole is formed on the surface of the fixing seat, and the end of the connecting plate away from the gear ring passes through the through hole. An insertion hole is formed on the surface of the connecting plate. A connecting frame is fixed to the surface of the fixing seat, and an insertion rod is provided on the surface of the connecting frame. The insertion rod passes through the connecting frame and is slidably connected to the connecting frame. A circular block is fixed to the surface of the connecting frame, and a sliding groove is formed on the surface of the circular block. A locking block is slidably connected to the inner wall of the sliding groove. A second spring is fixed to the surface of the locking block, and the end of the second spring away from the locking block is fixed to the inner wall of the sliding groove. A limiting plate is fixed to the surface of the insertion rod, and a locking groove is formed on the surface of the insertion rod. When the pulley is adjusted to a suitable angle, pressing the insertion rod inserts it into the insertion hole, thus limiting the movement of the connecting plate, gear ring, short rod, and sliding rod. Simultaneously, the locking block enters the locking groove, stabilizing the insertion rod.
[0010] Preferably, the end of the slide bar away from the spring has a triangular cross-section that abuts against the inner wall of the limiting groove, allowing the slide bar to move.
[0011] Preferably, the cross-section of the end of the locking block away from the second spring is triangular, and it abuts against the inner walls of the first and second slots. When the insertion rod moves, the locking block can move into the sliding groove.
[0012] Preferably, the diameter of the insertion rod is the same as the diameter of the insertion hole, which facilitates the insertion of the insertion rod into the insertion hole for positioning.
[0013] Compared with the prior art, this utility model provides an ultra-high voltage cable laying trolley, which has the following beneficial effects:
[0014] 1. This UHV cable laying trolley, through the setting of the limiting components, when adjusting the angle, the rotating rod drives the connecting block and hook to flip relative to the connecting frame. Through the rotation of the sliding rod, spring one, tooth groove, locking tooth two, short rod, and locking tooth one, the sliding rod reciprocates into the limiting groove, which will not affect the normal rotation of the rotating rod. When the adjustment is completed, press the insertion rod, and the insertion rod is inserted into the insertion hole, which can limit the connecting plate, tooth ring, short rod, and sliding rod. At the same time, the locking block enters the locking groove two, which can stabilize the insertion rod and prevent it from shifting, thus avoiding affecting the cable laying.
[0015] 2. This UHV cable laying trolley, through the set connecting block, allows the hook angle to be adjusted, facilitating cable laying. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present invention;
[0017] Figure 2 This is a side view of the structure of this utility model;
[0018] Figure 3 This is a side view of the internal structure of this utility model;
[0019] Figure 4 This is a front view schematic diagram of the rotating rod and limiting groove of this utility model;
[0020] Figure 5 Exploded internal structure diagram of the limiting component of this utility model;
[0021] Figure 6 This is a cross-sectional view of the limiting component of this utility model.
[0022] In the diagram: 1. Connecting frame; 2. Pulley; 3. Rotating rod; 5. Connecting block; 6. Hook; 7. Limiting component; 70. Fixed seat; 71. Cavity; 72. Gear ring; 73. Short rod; 74. Locking tooth one; 75. Locking tooth two; 76. Slide rod; 77. Gear groove; 78. Spring one; 700. Limiting groove; 79. Moving part; 790. Connecting plate; 791. Through hole; 792. Insertion hole; 793. Insertion rod; 794. Limiting plate; 795. Round block; 796. Slide groove; 797. Locking block; 798. Spring two; 799. Locking groove one; 7900. Locking groove two; 7901. Connecting frame. Detailed Implementation
[0023] like Figures 1-6As shown, this utility model provides a technical solution: an ultra-high voltage cable laying trolley, including a connecting frame 1, a pulley 2 rotatably connected to the inner side of the connecting frame 1, a rotating rod 3 provided on the surface of the connecting frame 1, the rotating rod 3 passing through the connecting frame 1 and rotatably connected to the connecting frame 1, a connecting block 5 passing through the rotating rod 3, the connecting block 5 being fixedly connected to the rotating rod 3, a hook 6 installed on the surface of the connecting block 5, and a limiting component 7 for preventing deviation provided on the surfaces of the connecting frame 1 and the connecting block 5, the limiting component 7 including: A fixed base 70 is fixed to the surface of the connecting frame 1. A cavity 71 is formed inside the fixed base 70. A toothed ring 72 is rotatably connected to the inner wall of the cavity 71. The limiting assembly 7 also includes a short rod 73, which is rotatably connected to the inner wall of the cavity 71. A first locking tooth 74 and a second locking tooth 75 are fixed to the surface of the short rod 73. The first locking tooth 74 engages with the toothed ring 72. A sliding rod 76 is provided inside the cavity 71, and the sliding rod 76 is slidably connected to the cavity 71. On the inner wall, the slide rod 76 passes through the fixed seat 70. The surface of the slide rod 76 is provided with a toothed groove 77. A spring 78 is fixed to the surface of the slide rod 76. The end of the spring 78 away from the slide rod 76 is fixed to the inner wall of the cavity 71. The surface of the rotating rod 3 is provided with a limiting groove 700. The toothed groove 77 engages with the second locking tooth 75. The limiting component 7 also includes a movable part 79. The cross-section of the end of the slide rod 76 away from the spring 78 is triangular. The rotating rod 3 drives the connecting block 5 and the hook 6 to flip relative to the connecting frame 1. When the slide rod 76 rotates, the inner wall of the limiting groove 700 comes into contact with the surface of the slide rod 76, which moves the slide rod 76 away from the rotating rod 3. At the same time, the spring 78 is compressed, and the tooth groove 77 drives the second locking tooth 75 to rotate, which in turn drives the short rod 73 and the first locking tooth 74 to rotate. The tooth ring 72 rotates synchronously, which drives the connecting plate 790 to rotate in the through hole 791. When the position of the slide rod 76 is parallel to the limiting groove 700, the spring 78 is released, and the slide rod 76 enters the limiting groove 700 without affecting the normal rotation of the rotating rod 3.
[0024] The movable component 79 includes a connecting plate 790, which is fixed to the surface of the gear ring 72. A through hole 791 is formed on the surface of the fixing seat 70. One end of the connecting plate 790 away from the gear ring 72 passes through the through hole 791. An insertion hole 792 is formed on the surface of the connecting plate 790. A connecting frame 7901 is fixed to the surface of the fixing seat 70. An insertion rod 793 is provided on the surface of the connecting frame 7901, passing through the connecting frame 7901 and slidably connected to it. A round block 795 is fixed to the surface of the connecting frame 7901. A sliding groove 796 is formed on the surface of the round block 795. A locking block 797 is slidably connected to the inner wall of the sliding groove 796. A second spring 798 is fixed to the surface of the locking block 797. The second spring 798 is located away from the locking block 790. One end of 97 is fixed to the inner wall of the slide groove 796. A limit plate 794 is fixed to the surface of the insertion rod 793. The surface of the insertion rod 793 has a first slot 799 and a second slot 7900. The cross-section of the end of the locking block 797 away from the second spring 798 is triangular. The diameter of the insertion rod 793 is the same as the diameter of the insertion hole 792. When the pulley 2 is adjusted to a suitable angle, the insertion rod 793 can be pressed. At this time, the insertion rod 793 is inserted into the insertion hole 792, which can limit the connecting plate 790 and the toothed ring 72, and simultaneously limit the short rod 73 and the slide rod 76, so that the rotating rod 3 can not continue to rotate, which can avoid the influence of external factors and the deviation. At the same time, the locking block 797 enters the second slot 7900, which can stabilize the insertion rod 793.
[0025] In use, hook 6 is hung in a suitable position, and the cable can be placed on the surface of pulley 2 for normal cable pulling. When the angle needs adjustment, rotating the connecting frame 1 causes the rotating rod 3 to rotate the connecting block 5 and hook 6 relative to the connecting frame 1. At this time, the inner wall of the limiting groove 700 abuts against the surface of the sliding rod 76, causing the sliding rod 76 to move away from the rotating rod 3. Simultaneously, spring 1 78 is compressed, causing the tooth groove 77 to rotate the locking tooth 2 75, which in turn rotates the short rod 73 and locking tooth 1 74. The toothed ring 72 rotates synchronously, causing the connecting plate 790 to rotate within the through hole 791. When the sliding rod 76 is parallel to the limiting groove 700, spring 1 78 is released, and the sliding rod 76 enters the limiting groove 700 without affecting the normal rotation of the rotating rod 3. When pulley 2 is adjusted to a suitable angle, the insertion rod 793 can be pressed. At this time, the insertion rod 793 is inserted into the insertion hole 792, which can limit the connecting plate 790 and the toothed ring 72, and simultaneously limit the short rod 73 and the sliding rod 76, thereby preventing the rotating rod 3 from continuing to rotate. This avoids the influence of external factors and the resulting deviation, which would affect the wire feeding work. At the same time, when the insertion rod 793 is pressed, the inner wall of the first slot 799 abuts against the surface of the block 797, which allows the block 797 to enter the sliding groove 796. The second spring 798 is compressed. When the block 797 is parallel to the second slot 7900, the block 797 enters the second slot 7900, which stabilizes the insertion rod 793. At the same time, the insertion rod 793 is inserted into the insertion hole 792. When it is necessary to adjust again, the insertion rod 793 is pulled out, and the block 797 enters the first slot 799 for adjustment. The limiting plate 794 prevents the insertion rod 793 from detaching from the connecting frame 7901.
[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A high-voltage power line laying trolley, comprising a connecting frame (1), characterized in that: The inner side of the connecting frame (1) is rotatably connected to a pulley (2). The surface of the connecting frame (1) is provided with a rotating rod (3). The rotating rod (3) passes through the connecting frame (1) and is rotatably connected to the connecting frame (1). The rotating rod (3) passes through a connecting block (5). The connecting block (5) is fixedly connected to the rotating rod (3). The surface of the connecting block (5) is equipped with a hook (6). The surfaces of the connecting frame (1) and the connecting block (5) are provided with a limiting component (7) to prevent deviation. The limiting component (7) includes: a fixed seat (70). The fixed seat (70) is fixed on the surface of the connecting frame (1). The interior of the fixed seat (70) is provided with a cavity (71). The inner wall of the cavity (71) is rotatably connected with a toothed ring (72).
2. The ultra-high voltage power line laying pulley according to claim 1, characterized in that: The limiting component (7) also includes a short rod (73), which is rotatably connected to the inner wall of the cavity (71). A locking tooth (74) is fixed to the surface of the short rod (73), and a locking tooth (75) is fixed to the surface of the short rod (73). The locking tooth (74) meshes with a toothed ring (72). A sliding rod (76) is provided inside the cavity (71), and the sliding rod (76) is slidably connected to the inner wall of the cavity (71). The slide rod (76) passes through the fixed seat (70). The surface of the slide rod (76) is provided with a toothed groove (77). A spring (78) is fixed on the surface of the slide rod (76). The end of the spring (78) away from the slide rod (76) is fixed on the inner wall of the cavity (71). A limiting groove (700) is provided on the surface of the rotating rod (3). The toothed groove (77) meshes with the second locking tooth (75). The limiting assembly (7) also includes a movable part (79).
3. The ultra-high voltage power line laying pulley according to claim 2, characterized in that: The movable component (79) includes a connecting plate (790), which is fixed to the surface of the gear ring (72). A through hole (791) is provided on the surface of the fixing seat (70). One end of the connecting plate (790) away from the gear ring (72) passes through the through hole (791). An insertion hole (792) is provided on the surface of the connecting plate (790). A connecting frame (7901) is fixed to the surface of the fixing seat (70). A insertion rod (793) is provided on the surface of the connecting frame (7901). The insertion rod (793) passes through the connecting frame (7901), and the insertion rod (793) slides against the connecting frame (7901). The connecting frame (7901) has a circular block (795) fixed on its surface. The circular block (795) has a sliding groove (796) on its surface. The inner wall of the sliding groove (796) is slidably connected to a locking block (797). The surface of the locking block (797) is fixed with a second spring (798). The end of the second spring (798) away from the locking block (797) is fixed on the inner wall of the sliding groove (796). The surface of the insert rod (793) is fixed with a limit plate (794). The surface of the insert rod (793) has a locking groove (799) and a locking groove (7900).
4. The ultra-high voltage power line laying pulley according to claim 2, characterized in that: The cross-section of the end of the slide bar (76) away from the spring (78) is triangular.
5. A UHV cable laying pulley according to claim 3, characterized in that: The cross-section of the end of the card block (797) away from the second spring (798) is triangular.
6. The ultra-high voltage cable laying pulley according to claim 3, characterized in that: The diameter of the insertion rod (793) is the same as the diameter of the insertion hole (792).