Angle steel tower climbing structure

Abstract

The invention relates to the technical field of climbing structures, in particular to an angle steel tower climbing structure which comprises a case, a moving table mounted on the case and a plurality of climbing units mounted in the case. The climbing unit comprises at least two main shafts which are vertically arranged, rotary discs are eccentrically arranged on the two end faces of each main shaft, the eccentric directions of the two rotary discs on each main shaft are opposite, cross beams are arranged on each main shaft, and the cross beams on the same side of each main shaft are fixedly connected through vertical beams. By adopting an automatic climbing mode, the operation and maintenance personnel move on the angle steel tower, so that the physical loss of the personnel is greatly reduced, the climbing time is shortened, the working efficiency is improved, the maintenance work of the angle steel tower is more convenient, and meanwhile, the safety of the workers can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of climbing structures, in particular to an angle steel tower climbing structure. Background Art

[0002] Angle steel tower is a truss structure made of angle steel components connected by bolts or welding. It is widely used in power transmission, communication base stations, wind power generation, high-altitude observation and other fields. Since angle steel towers are usually high, operation and maintenance personnel need to climb them regularly for equipment inspection, maintenance or emergency response. Therefore, safe and efficient climbing structure design is crucial.

[0003] Traditional methods of climbing angle steel towers mainly rely on fixed ladders or climbing nails. Workers need to consume a lot of physical strength and time when climbing, and it is also very dangerous. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an angle steel tower climbing structure, the specific technical solution adopted by the present invention is: The present invention provides an angle steel tower climbing structure for climbing on a straight ladder, comprising a chassis, a moving platform mounted on the chassis, and a plurality of climbing units mounted in the chassis; The climbing unit includes at least two main shafts arranged vertically, and a turntable is eccentrically provided on both end surfaces of each main shaft, and the eccentric directions of the two turntables on the main shaft are opposite. A crossbeam is provided on each main shaft, and several crossbeams on the same side of each main shaft are fixedly connected by a vertical beam. The crossbeam and the turntable rotate relative to each other, and the end of each crossbeam is provided with a clamping group for clamping on the straight ladder.

[0005] Furthermore, a plurality of clamping groups on at least one side of the main shaft are in a clamping state with the straight ladder.

[0006] Furthermore, the clamping group includes two synchronous gears rotatably mounted on the beam, and the two synchronous gears are engaged with each other. Each synchronous gear is provided with a U-shaped clamping hand, and the two U-shaped clamping hands are opposite to each other.

[0007] Furthermore, the clamping group also includes a spring plate connected to the two synchronous gears, and a clamping structure is provided between the two U-shaped clamping hands.

[0008] Furthermore, the clamping structure is a socket provided on each of the U-shaped clamping hands and an insertion rod inserted into the two sockets, and the movable direction of the insertion rod is parallel to the vertical connection line of the two synchronous gears.

[0009] Furthermore, a connecting rod is slidably provided on the crossbeam, an inclined groove is obliquely provided at the end of the connecting rod, a sliding rod is slidably provided in the inclined groove, and the sliding rod is connected to the insertion rod; A protrusion is provided on the insertion rod, and a sliding groove is correspondingly provided in one of the insertion holes.

[0010] Furthermore, a transverse groove is provided on the crossbeam, and a shifting post is provided on the rotary disk, the shifting post is slidably located in the transverse groove, and an outer edge is provided on the end of the shifting post; A top column is slidably provided at the end of the crossbeam away from the clamping group, the top column is connected to the crossbeam via a spring, and the top column is fixedly connected to the connecting rod; The sliding sleeve on the crossbeam is provided with a support sleeve, and the support sleeve slides in the vertical direction. The crossbeam is provided with a retaining edge that abuts against the support sleeve, and the support sleeve and the crossbeam are connected through a second spring.

[0011] Furthermore, the climbing unit further comprises a fixed box for supporting each of the main shafts, a power motor is provided in the fixed box, a worm is provided on the power motor, and each of the main shafts is provided with a worm wheel for use with the worm; The support sleeve is vertically slidably mounted on the fixing box, and the fixing box is mounted in the chassis.

[0012] The beneficial effects of the present invention are: By adopting the automatic climbing method to enable operation and maintenance personnel to move on the angle steel tower, the physical loss of personnel is greatly reduced, the climbing time is shortened, the work efficiency is improved, the maintenance work of the angle steel tower is made more convenient, and the safety of workers can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 yes Figure 1 Structural diagram from another perspective; Figure 3 is a structural diagram of a climbing unit in an embodiment of the present invention; Figure 4 Schematic diagram of the inner structure of the fixed box in an embodiment of the present invention; Figure 5 2 is a schematic structural diagram of a turntable in an embodiment of the present invention; Figure 6 is a schematic structural diagram of a beam in an embodiment of the present invention; Figure 7 is a schematic structural diagram of a clamping group in an embodiment of the present invention; Figure 8 is a schematic diagram of the climbing structure and the ladder in cooperation with each other in an embodiment of the present invention; Figure 9 Schematic diagram of the climbing structure used in conjunction with the centerline ladder in an embodiment of the present invention.

[0015] Reference numerals: 1. Chassis; 2. Moving table; 3. Climbing unit; 4. Spindle; 5. Turntable; 6. Crossbeam; 7. Clamping group; 8. Vertical beam; 9. U-shaped gripper; 10. Synchronous gear; 11. Spring; 12. Insert rod; 13. Connecting rod; 14. Inclined groove; 15. Sliding rod; 16. Protrusion; 17. Cross groove; 18. Shifting column; 19. Outer edge; 20. Top column; 21. Spring 1; 22. Support sleeve; 23. Side guard; 24. Spring 2; 25. Power motor; 26. Worm; 27. Fixed box. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 7 As shown, an angle steel tower climbing structure of the present invention is used for climbing on a straight ladder, comprising a chassis 1, a moving platform 2 installed on the chassis 1, and a plurality of climbing units 3 installed in the chassis 1; The climbing unit 3 includes at least two main shafts 4 arranged vertically, and a turntable 5 is eccentrically provided on both end surfaces of each main shaft 4, and the eccentric directions of the two turntables 5 on the main shaft 4 are opposite. A crossbeam 6 is provided on each main shaft 4, and a plurality of crossbeams 6 on the same side of each main shaft 4 are fixedly connected by a vertical beam 8. The crossbeam 6 and the turntable 5 rotate relative to each other, and the ends of each crossbeam 6 are provided with a clamping group 7 for clamping on the ladder; In the present invention, the chassis 1 is mainly used to provide an installation location for the climbing unit 3 and the mobile platform 2. The mobile platform 2 can carry operation and maintenance personnel, and the climbing unit 3 can climb on a straight ladder, such as Figure 8 As shown, of course, in other ladders such as centerline ladders, the climbing unit 3 can also perform climbing operations, such as Figure 9 As shown; in order to improve climbing stability, the climbing units 3 can be arranged into multiple groups, and the multiple climbing units 3 are arranged in a horizontal arrangement or a matrix; since the two turntables 5 on the main shaft 4 are eccentric and the eccentricity directions are opposite, when the main shaft 4 rotates, the two turntables 5 perform synchronous alternating motion, and in the vertical direction, the two turntables 5 perform alternating up and down motions. Combined with the synchronous motion of multiple main shafts 4, the multiple turntables 5 and the structures thereon on the same side of the multiple main shafts 4 can be set as one climbing group, and the other side thereof can be set as another climbing group. In this way, the two climbing groups move alternately, so that climbing operations can be performed on a straight ladder; When in use, the multiple spindles 4 on the climbing unit 3 move synchronously, and the multiple turntables 5 on the same side of the multiple spindles 4 move synchronously. Since the vertical beam 8 is connected to the multiple crossbeams 6, the multiple crossbeams 6 on the same side of the multiple spindles 4 move synchronously, and the crossbeams 6 remain in a horizontal state. When the crossbeam 6 carries the clamping group 7 thereon and moves and approaches the vertical ladder, the clamping group 7 can be clamped on the horizontal step rod on the vertical ladder. The multiple clamping groups 7 in the climbing group are synchronously clamped on the corresponding step rods. With the rotation of the main shaft 4, the main shaft 4 and the crossbeam 6 move relative to each other in the vertical direction, and the climbing group on the other side of the main shaft 4 approaches and clamps on the step rod. At this time, the climbing group in the initial clamping state of the main shaft 4 separates from the step rod and moves to the top of the main shaft 4 as the main shaft 4 rotates. This climbing group approaches the ladder again and clamps on the corresponding step rod. This is repeated, so that the chassis 1 and the mobile platform 2 move in the vertical direction. The operation and maintenance personnel located in the mobile platform 2 can move in the vertical direction, thereby realizing automatic climbing work; By adopting the automatic climbing method to enable operation and maintenance personnel to move on the angle steel tower, the physical loss of personnel is greatly reduced, the climbing time is shortened, the work efficiency is improved, the maintenance work of the angle steel tower is made more convenient, and the safety of workers can be effectively improved.

[0020] Furthermore, when the climbing unit 3 climbs on the ladder, in order to prevent the climbing unit 3 from being separated from the ladder, it is necessary to set the climbing mode, that is, the clamping groups 7 on at least one side of the main shaft 4 are in a clamping state with the ladder; when the climbing group on one side of the main shaft 4 is in a clamping state with the ladder, the other climbing group can be in a clamping state or a separation state with the ladder. As long as at least one climbing group is connected to the ladder, the climbing unit 3 can be prevented from being separated from the ladder. Of course, on the basis of providing multiple groups of climbing units 3, at least one climbing unit 3 can be connected to the ladder, and it is not necessary to be limited to at least one climbing group in each group of climbing units 3 being connected to the ladder. In actual use, in order to improve the safety and stability of climbing work, at least one climbing group in each group of climbing units 3 can be connected to a straight ladder; Since at least one of the climbing groups on both sides of the climbing unit 3 is connected to the ladder, and the main shaft 4 is in a continuous rotation state, the initial contact position of the clamping group 7 and the ladder needs to be located outside the area between the axis of the main shaft 4 and the ladder, that is, during one rotation of the main shaft 4, the small semicircular area is the separation area of the clamping group 7 and the ladder, and the large semicircular area is the connection area of the clamping group 7 and the ladder. In this way, during the rotation of the main shaft 4, the movement areas of the two climbing groups can partially overlap.

[0021] Furthermore, the clamping group 7 includes two synchronous gears 10 rotatably mounted on the beam 6, and the two synchronous gears 10 are meshed with each other, and each synchronous gear 10 is provided with a U-shaped clamping hand 9, and the two U-shaped clamping hands 9 are opposite to each other; The two U-shaped clamping hands 9 on the clamping group 7 can dock with each other and clamp the step rod on the straight ladder therein, so that the connection between the clamping group 7 and the straight ladder can be achieved. The setting of the two synchronous gears 10 is mainly used to support the U-shaped clamping hands 9 and ensure that the two U-shaped clamping hands 9 can move synchronously in opposite directions. In this way, when the two U-shaped clamping hands 9 are opened, the space between them is larger and it is convenient for the step rod to enter or move out between the two U-shaped clamping hands 9.

[0022] Furthermore, the clamping group 7 further includes a spring 11 connected to the two synchronous gears 10, and a clamping structure is provided between the two U-shaped clamping hands 9; In the present invention, the setting of the spring piece 11 can keep the two U-shaped clamping hands 9 in a closed state in the natural state, and cooperate with the clamping structure to enable the two U-shaped clamping hands 9 to maintain the clamping work on the pedal, preventing it from loosening and pushing the pedal, effectively improving the clamping firmness and stability.

[0023] Furthermore, the clamping structure is a socket provided on each of the U-shaped clamping hands 9 and an inserting rod 12 inserted into the two sockets, and the movable direction of the inserting rod 12 is parallel to the vertical connection line of the two synchronous gears 10; When the two U-shaped clamps 9 are closed under the action of the spring clips 11, the two U-shaped clamps 9 clamp the pedal rod, and the clamping force is mainly provided by the spring clips 11, but its clamping strength is relatively low. The two U-shaped clamps 9 can be limited by using the insertion rod 12 to pass through the insertion holes on the two U-shaped clamps 9. Because if the U-shaped clamps 9 need to move, their movement trajectory is arc-shaped, and the settings of the insertion rod 12 and the insertion hole can only make the U-shaped clamps 9 move in a straight line, so a jamming phenomenon will occur, and the U-shaped clamps 9 cannot move, so that the two U-shaped clamps 9 can maintain a fixed clamping state on the pedal rod. In this process, the elastic clamping effect of the spring clips 11 decreases.

[0024] Furthermore, a connecting rod 13 is slidably provided on the crossbeam 6, an end of the connecting rod 13 is obliquely provided with an inclined groove 14, a sliding rod 15 is slidably provided in the inclined groove 14, and the sliding rod 15 is connected to the insertion rod 12; The insertion rod 12 is provided with a protrusion 16, and a corresponding sliding groove is provided in one of the insertion holes; When the lever 13 is in the upright position, the lever 13 is in the upright position, and the lever 13 is in the upright position, so that the lever 13 can slide in the upper hole of one U-shaped clamping hand 9 and the lever 12 can be pulled out of the upper hole of the other U-shaped clamping hand 9, thereby releasing the locking work of the lever 12 on the two U-shaped clamping hands 9, while the spring piece 11 still maintains the state of providing auxiliary thrust to the two U-shaped clamping hands 9. The protrusion 16 on the lever 12 can be arranged so that when the protrusion 16 contacts the surface of the corresponding U-shaped clamping hand 9, the position of the lever 12 and the U-shaped clamping hand 9 are relatively fixed. At this time, the movement of the lever 13 will pull the U-shaped clamping hand 9 to rotate, that is, the U-shaped clamping hand 9 needs to perform a rotational movement after being unlocked, and the two U-shaped clamping hands 9 are synchronously separated from each other, thereby opening the clamping group 7; The protrusion 16 and the corresponding sliding groove on the U-shaped clamping hand 9 can ensure that the protrusion 16 and one U-shaped clamping hand 9 are smoothly plugged into each other and are locked with the other U-shaped clamping hand 9.

[0025] Furthermore, a transverse groove 17 is provided on the crossbeam 6, and a shifting post 18 is provided on the rotary disk 5. The shifting post 18 is slidably located in the transverse groove 17, and an outer edge 19 is provided at the end of the shifting post 18; A top column 20 is slidably provided at the end of the crossbeam 6 away from the clamping group 7. The top column 20 is connected to the crossbeam 6 via a spring 21, and the top column 20 is fixedly connected to the connecting rod 13. The crossbeam 6 is provided with a support sleeve 22 on the sliding sleeve, and the support sleeve 22 slides in the vertical direction. The crossbeam 6 is provided with a retaining edge 23 that abuts against the support sleeve 22. The support sleeve 22 and the crossbeam 6 are connected by a spring 24; In the present invention, if the crossbeam 6 is connected to the turntable 5 for rotation, the movement trajectory of the crossbeam 6 and the clamping group 7 is also circular, and the lateral distance between the main shaft 4 and the ladder will continue to change, which will easily cause the moving platform 2 to be unable to maintain stability in the lateral direction. To solve this problem, the above-mentioned structural method can be adopted, and the lateral position of the crossbeam 6 can be limited by using the support sleeve 22, the retaining edge 23 and the spring 24. That is, when the clamping group 7 is in a connected state with the pedal on the ladder, the support sleeve 22 contacts the retaining edge 23, and the crossbeam 6 will not move in the lateral direction. The rotation of the turntable 5 will push the crossbeam 6 in the vertical direction through the dial column 18. When the turntable 5 rotates a specified angle, it moves in the direction away from the ladder. At this time, the dial column 18 will approach and squeeze the top column 20, and the top column 2 0 slides on the crossbeam 6 in the direction away from the ladder, the spring 1 21 undergoes elastic deformation, the top column 20 pushes the connecting rod 13 to move and open the clamping group 7, and the clamping group 7 is separated from the step rod on the ladder. When the shifting column 18 contacts the inside of the transverse groove 17 or the spring 1 21 is compressed to a reduced distance, the shifting column 18 will directly provide a force for the crossbeam 6. At this time, the shifting column 18 overcomes the elastic force of the spring 24 and pushes the crossbeam 6 to move. The crossbeam 6 slides in the support sleeve 22 and drives the clamping group 7 away from the step rod, thereby preparing for the upward movement of the clamping group 7. When the clamping group 7 moves to the specified position, the support sleeve 22 contacts the retaining edge 23 again. At this time, the crossbeam 6 stops moving horizontally, and the shifting column 18 will slide in the transverse groove 17 and move relative to the crossbeam 6. This process is repeated, so that the movable platform 2 can move smoothly. It should be pointed out that the outer edge 19 is mainly provided to prevent the shifting post 18 from being separated from the crossbeam 6 , and the support sleeve 22 can play a positioning and guiding role for the crossbeam 6 and the clamping group 7 .

[0026] Furthermore, the climbing unit 3 further includes a fixed box 27 for supporting each of the main shafts 4. A power motor 25 is provided in the fixed box 27. A worm 26 is provided on the power motor 25. Each of the main shafts 4 is provided with a worm gear for use with the worm 26. The support sleeve 22 is vertically slidably mounted on the fixing box 27, and the fixing box 27 is mounted in the chassis 1; In the present invention, the fixed box 27 can provide an installation position for the main shaft 4, both ends of the main shaft 4 pass through the fixed box 27 and extend out of the fixed box 27, the turntable 5 is located on the outside of the fixed box 27, the fixed box 27 is fixed in the chassis 1, and the support sleeve 22 can be vertically slidably installed on the outer wall of the fixed box 27; the rotation of the main shaft 4 can be provided by the power motor 25, the worm 26 and the worm gear arranged on each main shaft 4, thereby enabling multiple main shafts 4 in the climbing unit 3 to move synchronously.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An angle steel tower climbing structure for climbing on a straight ladder, characterized in that: It includes a chassis, a mobile platform installed on the chassis, and a plurality of climbing units installed in the chassis; The climbing unit includes at least two main shafts arranged vertically, and a turntable is eccentrically provided on both end surfaces of each main shaft, and the eccentric directions of the two turntables on the main shaft are opposite. A crossbeam is provided on each main shaft, and several crossbeams on the same side of each main shaft are fixedly connected by a vertical beam. The crossbeam and the turntable rotate relative to each other, and the end of each crossbeam is provided with a clamping group for clamping on the straight ladder.

2. The angle steel tower climbing structure according to claim 1, characterized in that: The plurality of clamping groups on at least one side of the main shaft are in a clamping state with the straight ladder.

3. The angle steel tower climbing structure according to claim 2, characterized in that: The clamping group includes two synchronous gears rotatably mounted on the beam, and the two synchronous gears are meshed with each other. Each synchronous gear is provided with a U-shaped clamping hand, and the two U-shaped clamping hands are opposite to each other.

4. The angle steel tower climbing structure according to claim 3, characterized in that: The clamping group further includes a spring piece connected to the two synchronous gears, and a clamping structure is provided between the two U-shaped clamping hands.

5. The angle steel tower climbing structure according to claim 4, characterized in that: The clamping structure is a socket provided on each of the U-shaped clamping hands and an inserting rod inserted into the two sockets. The movable direction of the inserting rod is parallel to the vertical connection line of the two synchronous gears.

6. The angle steel tower climbing structure according to claim 5, characterized in that: A connecting rod is slidably provided on the crossbeam, an end portion of the connecting rod is obliquely provided with an inclined groove, a sliding rod is slidably provided in the inclined groove, and the sliding rod is connected to the insertion rod; A protrusion is provided on the insertion rod, and a sliding groove is correspondingly provided in one of the insertion holes.

7. The angle steel tower climbing structure according to claim 6, characterized in that: The crossbeam is provided with a transverse groove, the rotary disk is provided with a shifting post, the shifting post is slidably located in the transverse groove, and the end of the shifting post is provided with an outer edge; A top column is slidably provided at the end of the crossbeam away from the clamping group, the top column is connected to the crossbeam via a spring, and the top column is fixedly connected to the connecting rod; The sliding sleeve on the crossbeam is provided with a support sleeve, and the support sleeve slides in the vertical direction. The crossbeam is provided with a retaining edge that abuts against the support sleeve, and the support sleeve and the crossbeam are connected through a second spring.

8. The angle steel tower climbing structure according to claim 7, characterized in that: The climbing unit further comprises a fixed box for supporting each of the main shafts, a power motor is provided in the fixed box, a worm is provided on the power motor, and a worm gear is provided on each of the main shafts for use with the worm; The support sleeve is vertically slidably mounted on the fixing box, and the fixing box is mounted in the chassis.

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