Anti-falling track for 10kV steel pipe pole
By setting a "U"-shaped clamp and a "7"-shaped structure on the self-locking device, combined with a wedge-shaped shovel and an anti-freeze coating, the problems of jamming, corrosion, and deformation of steel pipe pole anti-fall rails in the field environment are solved, achieving efficient prevention of falls and improving the safety and flexibility of self-locking device passage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINING NINGGUANG ENG CONSULTATION
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-17
AI Technical Summary
The existing 10kV steel pipe pole anti-fall rails are susceptible to factors such as icing, wind vibration, rain and snow in the field, which can cause the rigid guide rails to jam, corrode and deform, and the self-locking device to fail to pass smoothly, posing a risk of falling from a height.
A U-shaped clamp is fixed at the upper end of the self-locking device, which is tightly connected to the rigid guide rail using a "7"-shaped structure. Combined with a wedge-shaped shovel to remove ice and snow, the self-locking device is pulled by a safety rope. Ball bearings are used to reduce friction, and an antifreeze coating is applied to reduce ice adhesion and enhance protection.
It effectively prevents the self-locking device from falling, reduces the risk of falling from heights, ensures the safety of operators, improves the reliability and flexibility of the self-locking device, and reduces jamming problems caused by icing and corrosion.
Smart Images
Figure CN224126444U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of climbing transmission line towers, and in particular to a fall-prevention rail for 10kV steel pipe poles. Background Technology
[0002] A steel pipe pole ladder is a metal component installed on the steel pipe pole or other maintenance locations for easy installation and maintenance. During the use of power steel pipe poles, maintenance personnel need to climb the ladder to the top of the pole to perform their work. Existing power steel pipe pole ladder structures typically consist of a steel pipe pole and climbing spikes located on both sides of the pole.
[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: When steel pipe pole anti-fall rails are exposed to the outdoor environment for a long time, they are affected by weather factors such as icing, wind vibration, rain and snow. The rigid guide rails are prone to defects such as jamming, corrosion and deformation, which prevent the anti-fall self-locking device from passing smoothly, causing the anti-fall guide rail to lose its safety protection function and posing a risk of falling from height. Utility Model Content
[0004] To enhance protection and reduce the risk of falling from heights, this application provides a fall arrest track for 10kV steel pipe poles.
[0005] The technical solution provided in this application for a fall arrestor rail for 10kV steel pipe poles is as follows:
[0006] A fall arrestor track for a 10kV steel pipe pole includes a steel pipe pole ladder, a rigid guide rail, connectors, a self-locking device, and a safety rope. The steel pipe pole ladder is vertically installed and fixedly connected to the pole tower via the connectors. The rigid guide rail is vertically installed and fixedly connected to the steel pipe pole ladder via the connectors. The rigid guide rail has grooves on opposite sides. The self-locking device is slidably mounted on the side of the rigid guide rail opposite to the steel pipe pole ladder and slides upwards along the grooves. The safety rope is connected to a hanging ring on the self-locking device. The track also includes a U-shaped clamp located at the upper end of the self-locking device. The opening is bent inward at both ends to form a bend. The "U"-shaped clamp surrounds the rigid guide rail. The opening of the "U"-shaped clamp is close to the side of the steel pipe pole ladder. The "U"-shaped clamp is fixedly connected to the upper end of the self-locking device. The "U"-shaped clamp is slidably connected to the rigid guide rail. A wedge-shaped shovel is provided in the groove. The wedge-shaped shovel is fixedly connected to the "U"-shaped clamp. "7"-shaped structures are provided on both the left and right sides of the "U"-shaped clamp. The "7"-shaped structures are integrally formed. One end of the "7"-shaped structure is fixedly connected to the lower end of the self-locking device, and the other end is placed in the bend and rotated relative to the bend.
[0007] By adopting the above technical solution, a "U"-shaped clamp is fixedly installed at the upper end of the self-locking device. The "U"-shaped clamp surrounds the rigid guide rail and can rise with the self-locking device. When the self-locking device tends to fall off for various reasons, the rigid guide rail can pull the self-locking device back to the track in time. Furthermore, the design of the "7"-shaped structure can further prevent the self-locking device from falling, on the basis of preventing the self-locking device from falling. Since one end of the "7"-shaped structure is connected to the self-locking device, and the other end is placed in the bend and can abut against the side of the rigid guide rail near the steel pipe pole ladder, when the self-locking device falls, the end of the "7"-shaped structure near the self-locking device will be subjected to a downward pull under the weight of the operator, which will cause the "7"-shaped structure to rotate counterclockwise, so that the end of the "7"-shaped structure near the rigid guide rail is tightly abutted against the rigid guide rail, thereby preventing the "U"-shaped clamp from falling and further preventing the self-locking device from falling. The wedge-shaped shovel design can remove ice, snow and foreign objects from the chute during the ascent. It can also serve as a support component, which can compensate for defects such as jamming, corrosion and deformation caused by rigid guide rails to a certain extent, assist and guide the self-locking device to pass smoothly, and reduce the risk of falling from heights.
[0008] Optionally, a limiting groove is provided at the lower end of the bent portion, and pin holes are provided on both sides of the limiting groove. A fixing hole is provided on the bending angle of the "7"-shaped structure. The bending angle of the "7"-shaped structure is placed in the limiting groove, and the end of the "7"-shaped structure away from the self-locking device can abut against the rigid guide rail. The pin hole and the fixing hole correspond to each other, and a pin shaft passes through the pin hole and the fixing hole.
[0009] By adopting the above technical solution, when an operator falls, the safety rope will pull down the self-locking device, which in turn pulls down the "7"-shaped structure. Since the bending angle of the "7"-shaped structure is rotatably connected to the lower end of the bending part, when the end of the "7"-shaped structure near the self-locking device is subjected to downward tension, the end of the "7"-shaped structure away from the self-locking device will rotate around the pin and directly abut against the rigid guide rail. The greater the tension, the tighter the abutment, thus achieving secondary fall protection with the "U"-shaped clamp.
[0010] Optionally, the end of the "7"-shaped structure away from the self-locking device is fixedly provided with several fastening claws. The fastening claws are placed in the limiting groove. When the bending angle rotates around the pin axis to the rigid guide rail, the fastening claws are tightly fitted with the rigid guide rail.
[0011] By adopting the above technical solution, when the "7"-shaped structure is subjected to downward tension, the fastening claws and rigid guide rails fit tightly together. The design of the fastening claws further increases the friction, preventing the "U"-shaped clamp from sliding down, thereby further ensuring the safety of the operator.
[0012] Optionally, the fastening claw is fitted with an EPDM rubber sleeve.
[0013] By adopting the above technical solution, a rubber sleeve is attached to the fastening claw, which not only protects the fastening claw from damage to the rigid guide rail during the descent, but also increases resistance and reduces descent. The EPDM rubber material can withstand cold weather of -40℃, and can effectively reduce the occurrence of rubber sleeve damage due to freezing and cold in high-altitude areas.
[0014] Optionally, the "U"-shaped clamp is provided with balls on both sides of the rigid guide rail corresponding to the slide groove. The balls are embedded in the "U"-shaped clamp and roll up and down relative to the rigid guide rail.
[0015] By adopting the above technical solution, ball bearings are embedded in the "U"-shaped clamp. The ball bearings slide up and down along the rigid guide rails on both sides of the slide groove, so that the "U"-shaped clamp rises with the self-locking device. This reduces the friction between the "U"-shaped clamp and the rigid guide rail during the rising process, enabling the "U"-shaped clamp and the self-locking device to rise flexibly and reducing the risk to the operator due to the inability to slide the self-locking device upward in time.
[0016] Optionally, the head of the wedge-shaped shovel has an inverted "V" shape or a right-angled trapezoidal shape.
[0017] By adopting the above technical solution, the head of the wedge shovel is set as an inverted "V" shape or a right-angled trapezoidal structure, which allows the wedge shovel to easily remove ice and snow attached to the chute as it rises with the "U" shaped clamp.
[0018] Optionally, the surface of the rigid guide rail is coated with an antifreeze coating.
[0019] By adopting the above technical solution, an antifreeze coating can be applied to the surface of the rigid guide rail to reduce the adhesion of ice, making it difficult for ice to form or causing it to fall off automatically.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. By fixing a "U"-shaped clamp to the upper end of the self-locking device, which encircles the rigid guide rail, the rigid guide rail can promptly pull the self-locking device back onto the track if it shows signs of detachment. Furthermore, the "7"-shaped structure design further prevents falls beyond the self-locking device's fall prevention capabilities. When the self-locking device does fall, the end of the "7"-shaped structure closest to the device experiences a downward pull under the operator's weight, causing the "7"-shaped structure to rotate counter-clockwise. This ensures that the end of the "7"-shaped structure closest to the rigid guide rail is firmly pressed against it, preventing the "U"-shaped clamp from falling and further preventing the self-locking device from falling. The wedge-shaped shovel design not only removes ice, snow, and foreign objects from the chute but also compensates to some extent for defects in the rigid guide rail such as jamming, corrosion, and deformation, assisting and guiding the self-locking device to pass smoothly and reducing the risk of falls from heights.
[0022] 2. By embedding ball bearings inside the "U"-shaped clamp, the ball bearings slide up and down along the rigid guide rails on both sides of the slide groove, allowing the "U"-shaped clamp to rise along with the self-locking device. This reduces the friction between the "U"-shaped clamp and the rigid guide rails during the rising process, enabling the "U"-shaped clamp and the self-locking device to rise flexibly and reducing the risk to the operator due to failure to slide the self-locking device upward in time.
[0023] 3. By coating the surface of the rigid guide rail with an antifreeze coating, the adhesion of ice can be reduced, making it difficult for ice to form or causing it to fall off automatically. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of a fall-prevention track for a 10kV steel pipe pole, as described in this application.
[0025] Figure 2 This is a perspective view of the "U"-shaped clamp in this application.
[0026] Figure 3 This is a schematic diagram of the "7"-shaped structure in this application.
[0027] Figure 4 This is a top view of the "U"-shaped clamp in this application.
[0028] Explanation of reference numerals in the attached drawings: 1. Steel pipe pole ladder; 2. Rigid guide rail; 21. Slide groove; 3. Connector; 4. Connector; 5. Self-locking device; 6. Safety rope; 7. Pole tower; 8. "U" shaped clamp; 81. Bending part; 811. Limiting groove; 812. Pin hole; 9. Wedge-shaped shovel; 10. "7" shaped structure; 101. Fixing hole; 102. Fastening claw; 103. EPDM rubber sleeve; 11. Pin shaft; 12. Ball bearing. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0030] This application discloses a fall-prevention rail for a 10kV steel pipe pole. (Refer to...) Figure 1 A fall arrestor track for a 10kV steel pipe pole includes a steel pipe pole ladder 1, a rigid guide rail 2, a connector 3, a connector 4, a self-locking device 5, and a safety rope 6. The steel pipe pole ladder 1 is vertically arranged and parallel to the pole tower 7. The steel pipe pole ladder 1 is fixedly connected to the pole tower 7 via the connector 3. The rigid guide rail 2 is vertically arranged and parallel to the steel pipe pole ladder 1. The rigid guide rail 2 is fixedly connected to the steel pipe pole ladder 1 via the connector 4. Slide grooves 21 are provided on opposite sides of the rigid guide rail 2. The self-locking device 5 is slidably disposed on the side of the rigid guide rail 2 opposite to the steel pipe pole ladder 1 and slides upward along the slide grooves 21. The safety rope 6 is connected to the hanging ring on the self-locking device 5.
[0031] The surface of the rigid guide rail 2 is coated with a fluoropolymer or silica nano-antifreeze coating to reduce the adhesion of ice to the surface, making it difficult for ice to form or to fall off automatically.
[0032] Reference Figure 1 and Figure 2 A fall arrestor track for 10kV steel pipe poles also includes a U-shaped clamp 8 located on the upper end of the self-locking device 5. The two ends of the U-shaped clamp 8 are bent inwards to form a bent portion 81. The U-shaped clamp 8 encircles the rigid guide rail 2, with its opening facing the steel pipe pole ladder 1. The U-shaped clamp 8 is located on the upper end of the self-locking device 5 and overlaps with it. The U-shaped clamp 8 is fixedly connected to the upper end of the self-locking device 5 by welding or bolt assembly. The U-shaped clamp 8 is slidably connected to the rigid guide rail 2. Since one end of the connector 4 is fixedly connected to the rigid guide rail 2 and the other end is fixedly connected to the steel pipe pole ladder 1, when the U-shaped clamp 8 slides along the rigid guide rail 2, the connecting section between the connector 4 and the rigid guide rail 2 passes through the opening of the U-shaped clamp 8. A wedge-shaped shovel 9 is installed inside the chute 21. The wedge-shaped shovel 9 is welded to the inner side of the "U"-shaped clamp 8 or integrally formed. The head of the wedge-shaped shovel 9 is an inverted "V"-shaped structure or a right-angled trapezoidal structure, which can reduce sliding resistance while removing ice or foreign objects in the chute 21.
[0033] The “U”-shaped clamp 8 has a “7”-shaped structure 10 on both the left and right sides. The “7”-shaped structure 10 is integrally formed. The longer end of the “7”-shaped structure 10 is fixedly connected to the lower end of the self-locking device 5, and the shorter end is placed inside the bending part 81 and rotated relative to the bending part 81.
[0034] A limiting groove 811 is provided at the lower end of the bent part 81. Pin holes 812 are provided on both sides of the lower end of the limiting groove 811. A fixing hole 101 is provided on the bending angle of the "7"-shaped structure 10. The bending angle of the "7"-shaped structure 10 is placed in the limiting groove 811, and the end of the "7"-shaped structure 10 away from the self-locking device 5 can abut against the rigid guide rail 2. The pin hole 812 and the fixing hole 101 correspond, and a pin shaft 11 passes through the pin hole 812 and the fixing hole 101, so that the shorter end of the "7"-shaped structure 10 is placed in the limiting groove 811. During the upward sliding of the "U"-shaped clamp 8, the shorter end of the "7"-shaped structure 10 does not make close contact with the rigid guide rail 2. However, once the longer end of the "7"-shaped structure 10 is subjected to downward pulling force, the bending angle of the "7"-shaped structure 10 rotates counterclockwise, and the shorter end of the "7"-shaped structure 10 makes close contact with the rigid guide rail 2, reducing the downward tendency of the "U"-shaped clamp 8.
[0035] Reference Figure 3The end of the "7"-shaped structure 10 furthest from the self-locking device 5 is provided with several fastening claws 102. These claws 102 are integrally formed with the self-locking device 5 and are positioned within the limiting groove 811. When the bending angle rotates around the pin 11 towards the rigid guide rail 2, the fastening claws 102 and the rigid guide rail 2 are tightly fitted together. To reduce scratches caused by friction between the fastening claws 102 and the rigid guide rail 2, a EPDM rubber sleeve 103 is fitted onto the fastening claws 102, which is both cold-resistant and increases resistance.
[0036] Reference Figure 4 The "U" shaped clamp 8 is provided with balls 12 on both sides of the slide groove 21 of the rigid guide rail 2. The balls 12 are embedded in the "U" shaped clamp 8 and in contact with the rigid guide rail 2. As the "U" shaped clamp 8 slides, the balls 12 roll up and down relative to the rigid guide rail 2, reducing the friction between the "U" shaped clamp 8 and the rigid guide rail 2 during the upward sliding process.
[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A fall arrestor track for a 10kV steel pipe pole, comprising a steel pipe pole ladder (1), a rigid guide rail (2), a connector (3), a connector (4), a self-locking device (5), and a safety rope (6), wherein the steel pipe pole ladder (1) is vertically arranged and fixedly connected to the pole tower (7) via the connector (3), the rigid guide rail (2) is vertically arranged and fixedly connected to the steel pipe pole ladder (1) via the connector (4), and the rigid guide rail (2) has grooves (21) on opposite sides, the self-locking device (5) is slidably arranged on the side of the rigid guide rail (2) away from the steel pipe pole ladder (1) and slides upward along the grooves (21), and the safety rope (6) is connected to the hanging ring on the self-locking device (5), characterized in that: It also includes a "U"-shaped clamp (8) set on the upper end of the self-locking device (5). The two ends of the opening of the "U"-shaped clamp (8) are bent inward to form a bent part (81). The "U"-shaped clamp (8) surrounds the rigid guide rail (2). The opening of the "U"-shaped clamp (8) is close to the side of the steel pipe climbing ladder (1). The "U"-shaped clamp (8) is fixedly connected to the upper end of the self-locking device (5). The "U"-shaped clamp (8) is slidably connected to the rigid guide rail (2). Connect; a wedge-shaped shovel (9) is provided in the groove (21), and the wedge-shaped shovel (9) is fixedly connected to the "U"-shaped clamp (8); a "7"-shaped structure (10) is provided on both the left and right sides of the "U"-shaped clamp (8), the "7"-shaped structure (10) is integrally formed, one end of the "7"-shaped structure (10) is fixedly connected to the lower end of the self-locking device (5), and the other end is placed in the bending part (81) and rotated relative to the bending part (81).
2. A fall arrest track for a 10 kV steel pole as claimed in claim 1, characterised in that: The lower end of the bent part (81) is provided with a limiting groove (811), and pin holes (812) are provided on both sides of the limiting groove (811). A fixing hole (101) is provided on the bending angle of the "7"-shaped structure (10). The bending angle of the "7"-shaped structure (10) is placed in the limiting groove (811), and the end of the "7"-shaped structure (10) away from the self-locking device (5) can abut against the rigid guide rail (2). The pin hole (812) and the fixing hole (101) correspond to each other, and a pin shaft (11) passes through the pin hole (812) and the fixing hole (101).
3. A fall arrest track for a 10 kV steel pole as claimed in claim 2, characterised in that: The end of the "7"-shaped structure (10) away from the self-locking device (5) is fixedly provided with several fastening claws (102). The fastening claws (102) are placed in the limiting groove (811). When the bending angle rotates around the pin (11) toward the rigid guide rail (2), the fastening claws (102) are tightly fitted with the rigid guide rail (2).
4. A fall arrest track for a 10 kV steel pole as claimed in claim 3, characterised in that: The fastening claw (102) is fitted with an EPDM rubber sleeve (103).
5. A fall arrest track for a 10 kV steel pole as claimed in claim 1, characterised in that: The "U" shaped clamp (8) is provided with balls (12) on both sides of the rigid guide rail (2) corresponding to the slide groove (21). The balls (12) are embedded in the "U" shaped clamp (8) and roll up and down relative to the rigid guide rail (2).
6. A fall arrest track for a 10 kV steel pole as claimed in claim 1, characterised in that: The head of the wedge-shaped shovel (9) has an inverted "V" shape or a right-angled trapezoidal structure.
7. A fall arrest track for a 10 kV steel pole as claimed in claim 1, characterised in that: The surface of the rigid guide rail (2) is coated with an antifreeze coating.