Crawling ladder of wind power generation tower

Abstract

The utility model belongs to the field of crawling ladders, and particularly relates to a crawling ladder of a wind power generation tower, which comprises two vertical rods, and a plurality of cross rods are fixedly connected between the two vertical rods. A plurality of trapezoidal grooves are formed in the push rods, through holes are formed in the positions, corresponding to the trapezoidal grooves, of the tops of the transverse rods, vertical rods are slidably connected into the through holes, and pedals are fixedly connected to the top ends of the vertical rods. The push rod and the stop rod slide towards the interior of the cross rod, the sliding sleeve can continue to move upwards, after the sole of the worker leaves the pedal, the push rod and the stop rod are reset, so that the anti-falling effect is achieved, the worker only needs to climb by means of the arrangement, the workload of fixing the safety belt lock catch to the crawling ladder back and forth by the worker is reduced, and the working efficiency is improved. Therefore, the use of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of ladders, in particular to a ladder for a wind power generation tower. Background Art

[0002] Wind turbine towers are key components of wind power generation systems and are infrastructure specifically used to erect and connect wind turbines.

[0003] In the current existing technology, there will be a ladder on the wind turbine tower, so that the staff can go up and down for maintenance. The ladder is mainly composed of two vertical poles and multiple horizontal poles. The vertical poles are welded and fixed on the tower body of the wind turbine tower, and the horizontal poles are used for staff to step on. When in use, the staff will wear a safety belt, and the end of the safety belt is buckled on the ladder, which can prevent falling.

[0004] However, when the workers are climbing, they need to unbuckle the safety belt after climbing a certain distance, and then buckle it on the ladder at a higher place, and then repeat the above steps due to the limited length of the safety belt. This makes it inconvenient for the workers to climb. Therefore, a ladder for a wind turbine tower is proposed to address the above problem. Utility Model Content

[0005] In order to remedy the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention proposes a ladder for a wind power tower.

[0006] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure is hinged on the base plate, is fixed with a backing pin on the interlocking structure, and an end of sliding panel withstands on the backing pin of interlocking structure.

[0007] Preferably, a winding chamber is opened on the side of the sliding sleeve, and a pulley is rotatably connected inside the winding chamber. A spring is installed at the rotating connection of the pulley. The end of the pull rope away from the buckle is fixed to the pulley, and the pull rope is wrapped around the surface of the pulley. When the barrier rod moves horizontally, the sliding sleeve will immediately follow and move upward, thereby reducing the problem of the pull rope being too long and causing the sliding sleeve to be difficult to follow and slide.

[0008] Preferably, the bottom end of the vertical rod is fixedly connected to a limiting ring, the limiting ring is located inside the cross rod, and a slot is fixedly connected to the surface of the sliding rod at a position corresponding to the blocking rod, and the end of the blocking rod can be inserted into the slot.

[0009] Preferably, the bottom end of the vertical rod is rotatably connected to a first pulley, a plurality of second pulleys are rotatably connected in the sliding sleeve, a cleaning cotton sleeve is fixed to the top end of the sliding sleeve, and the sliding rod is located in the middle of the cleaning cotton sleeve.

[0010] Preferably, baffles are fixedly connected to both sides of the pedal, the cross bar is located between the two baffles, and the baffles and the cross bar are surface-fitted and slidably connected.

[0011] Preferably, a first rubber sleeve is fixed inside the through hole, a second rubber sleeve is fixed to one end of the cross bar close to the slide bar, the vertical bar passes through the first rubber sleeve and is slidably connected thereto, and the blocking rod passes through the second rubber sleeve and is slidably connected thereto.

[0012] The utility model is beneficial in that:

[0013] When the worker's foot leaves the pedal, its spring pushes the push rod and the stop rod to return to its original position, which blocks the bottom of the sliding sleeve, thereby playing a role in preventing falling. Relying on the above arrangement, the worker only needs to climb, and the sliding sleeve will follow and move upward, thereby reducing the workload of the worker to fix the safety belt buckle on the ladder back and forth, thereby making it convenient for the worker to use;

[0014] 2. The utility model is provided with a pulley and a spring. When in use, the staff pulls out the pull rope from the pulley, and then fixes the lock buckle of the safety belt on the buckle. The pulley is wound by the spring, which can rewind the pull rope, thereby reducing the problem that the longer pull rope hinders the staff from climbing. The wound pulley will pull the sliding sleeve, so that when the barrier bar moves horizontally, the sliding sleeve will immediately follow and move upward, thereby reducing the problem that the pull rope is too long and the sliding sleeve is difficult to follow and slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-bar cross-section structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the sliding sleeve of the present utility model;

[0019] Figure 4 This is a schematic diagram of the slot structure of the utility model;

[0020] Figure 5 It is a schematic structural diagram of a cross bar cross section of the present invention.

[0021] In the figure: 11, vertical pole; 12, horizontal bar; 13, sliding bar; 14, push rod; 15, stop rod; 16, pedal; 17, vertical bar; 18, trapezoidal groove; 19, through hole; 21, sliding sleeve; 22, pull rope; 23, buckle; 24, pulley; 31, limiting ring; 32, slot; 41, first pulley; 42, second pulley; 43, cleaning cotton sleeve; 5, baffle; 61, first rubber sleeve; 62, second rubber sleeve; 7, rubber pad. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0023] Specific examples are given below.

[0024] See also Figure 1-5 The ladder of the wind power tower is shown in FIG. 2 , comprising two vertical poles 11 , a plurality of cross poles 12 being fixedly connected between the two vertical poles 11 ; a push rod 14 is slidably connected to the interior of the cross pole 12 , a plurality of trapezoidal grooves 18 are provided on the push rod 14 , a through hole 19 is provided at the top of the cross pole 12 and the corresponding position of the trapezoidal groove 18 , a vertical pole 17 is slidably connected to the interior of the through hole 19 , a pedal 16 is fixed to the top of the vertical pole 17 , a sliding rod 13 is fixed to the side of the vertical pole 11 , a stopper 15 is fixed to one end of the push rod 14 close to the sliding rod 13 , the stopper 15 passes through the wall of the end of the cross pole 12 and is slidably connected thereto, a spring is fixed between the end of the push rod 14 and the inner side wall of the cross pole 12 , a sliding sleeve 21 is slidably connected to the sliding sleeve 21 , a pull rope 22 is provided on the sliding sleeve 21 , and a buckle 23 is fixed to the end of the pull rope 22 ;

[0025] When the staff member's foot leaves the pedal 16, its spring will push the push rod 14 and the baffle 15 to reset, which will block the bottom of the sliding sleeve 21 to prevent falling. Relying on the above arrangement, the staff member only needs to climb, and its sliding sleeve 21 will follow and move upward, thereby reducing the workload of the staff member to fix the safety belt buckle on the ladder back and forth, thereby making it convenient for the staff member to use.

[0026] Further, such as Figure 3 The end of the pull rope 22 is fixedly connected to the sleeve 21 or is installed on the sleeve 21 through the winding mechanism in this embodiment.

[0027] Further, such as Figure 2 、 4 -5, the bottom end of the vertical rod 17 is fixedly connected to a limiting ring 31, and the limiting ring 31 is located inside the cross bar 12. A slot 32 is fixedly connected to the surface of the slide bar 13 at a position corresponding to the baffle rod 15, and the end of the baffle rod 15 can be inserted into the slot 32; when in use, the limiting ring 31 is provided to reduce the effect of the vertical rod 17 slipping off from the inside of the cross bar 12. When falling, only the end of the baffle rod 15 close to the cross bar 12 is subjected to force, and it is easy to bend. By providing the slot 32, the end of the baffle rod 15 can be inserted into the slot 32, so that the end of the baffle rod 15 can be supported, thereby improving the stability of the support.

[0028] Further, such as Figure 2-5 As shown, the bottom end of the vertical rod 17 is rotatably connected to the first pulley 41, and a plurality of second pulleys 42 are rotatably connected in the sliding sleeve 21. The top end of the sliding sleeve 21 is fixedly connected to a cleaning cotton sleeve 43, and the sliding rod 13 is located in the middle of the cleaning cotton sleeve 43. When in use, by setting the first pulley 41, the friction of the bottom end of the vertical rod 17 sliding in the trapezoidal groove 18 can be used to facilitate the downward movement of the vertical rod 17 to push the push rod 14 to move horizontally. By setting the second pulley 42, the friction force of the sliding sleeve 21 on the sliding rod 13 can be reduced. By setting the cleaning cotton sleeve 43, the sliding rod 13 can be wiped and cleaned.

[0029] Further, such as Figure 4 As shown, baffles 5 are fixed on both sides of the pedal 16, and the cross bar 12 is located between the two baffles 5, and the baffles 5 and the cross bar 12 are surface-fitted and slidably connected; when in use, the baffles 5 on both sides of the pedal 16 are used to block the gap between the pedal 16 and the cross bar 12, thereby reducing the possibility of the staff's fingers and soles being stuck, thereby making it convenient for the staff to use.

[0030] Further, such as Figure 2 and 5 As shown, a first rubber sleeve 61 is fixedly connected to the interior of the through hole 19, a second rubber sleeve 62 is fixedly connected to the end of the cross bar 12 close to the slide bar 13, the vertical bar 17 passes through the first rubber sleeve 61 and is slidably connected thereto, and the blocking rod 15 passes through the second rubber sleeve 62 and is slidably connected thereto; when in use, the first rubber sleeve 61 can play a waterproof role between the vertical bar 17 and the through hole 19, thereby reducing water ingress into the cross bar 12, and the second rubber sleeve 62 is used for sealing the sliding between the blocking rod 15 and the cross bar 12.

[0031] Further, such as Figure 2 and 4As shown, a rubber pad 7 is fixed to the top side of the pedal 16. When in use, the rubber pad 7 can play an anti-slip role, thereby reducing the possibility of workers slipping.

[0032] Working principle: when in use, the staff fixes the lock of the safety belt on the buckle 23, and then the staff climbs up, and the staff will drive the sliding sleeve 21 to slide on the sliding bar 13. Every time the staff climbs up a horizontal bar 12, the sole of his foot will squeeze the pedal 16, so that the pedal 16 and the vertical bar 17 move down, and the vertical bar 17 squeezes the trapezoidal groove 18, so that the push rod 14 and the baffle rod 15 slide toward the inside of the horizontal bar 12, thereby retracting the baffle rod 15, and then the sliding sleeve 21 can continue to move up. When the staff's foot leaves the pedal 16, its spring will push the push rod 14 and the baffle rod 15 to reset, which will be blocked at the bottom of the sliding sleeve 21 The staff can then use the rope 22 to fasten the safety belt buckle to the ladder, thereby reducing the workload of the staff to fasten the safety belt buckle to the ladder, thereby facilitating the use of the staff. The staff can pull the pull rope 22 out of the rope pulley 24, and then fasten the safety belt buckle to the buckle 23. The rope pulley 24 can be wound up by the spring, which can wind up the pull rope 22, thereby reducing the problem that the long pull rope 22 hinders the staff from climbing, and the wound rope pulley 24 will pull the sliding sleeve 21, so that when the blocking rod 15 moves horizontally, the sliding sleeve 21 will immediately follow the upward movement. The end of the blocking rod 15 can be inserted into the slot 32 to support the end of the blocking rod 15 and improve the stability of the support. The first pulley 41 is provided to reduce the friction of the bottom end of the vertical rod 17 sliding in the trapezoidal groove 18, so that the vertical rod 17 can be moved downward to push the push rod 14 to move horizontally. The wheel 42 can reduce the friction of the sliding sleeve 21 sliding on the sliding rod 13. The cleaning cotton sleeve 43 can be used to wipe the sliding rod 13 and clean it. The baffles 5 on both sides of the pedal 16 are used to block the gap between the pedal 16 and the cross bar 12, so as to reduce the situation where the fingers and soles of the staff are stuck, thereby making it convenient for the staff to use it. The first rubber sleeve 61 can play a waterproof role between the vertical rod 17 and the through hole 19, thereby reducing water ingress into the cross bar 12. The second rubber sleeve 62 is used for sealing the sliding between the baffle 15 and the cross bar 12.

[0033] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A ladder for a wind power tower, comprising two vertical poles (11), with a plurality of horizontal poles (12) fixedly connected between the two vertical poles (11); characterized in that: The cross bar (12) is internally slidably connected to a push rod (14), and a plurality of trapezoidal grooves (18) are provided on the push rod (14). A through hole (19) is provided at a position corresponding to the top of the cross bar (12) and the trapezoidal grooves (18). The interior of the through hole (19) is slidably connected to a vertical rod (17), and a pedal (16) is fixed to the top of the vertical rod (17). The side of the vertical rod (11) is fixed to a slide rod (13). The push rod (14) is fixed to an end close to the slide rod (13) with a stop rod (15). The stop rod (15) passes through the wall of the end of the cross bar (12) and is slidably connected thereto. A spring is fixed between the end of the push rod (14) and the inner wall of the cross bar (12). A sliding sleeve (21) is slidably connected to the slide rod (13), and a pull rope (22) is provided on the sliding sleeve (21). The end of the pull rope (22) is fixed to a buckle (23).

2. The ladder for a wind power tower according to claim 1, characterized in that: A winding chamber is provided on the side of the sliding sleeve (21), and a rope wheel (24) is rotatably connected inside the winding chamber. A spring is installed at the rotating connection of the rope wheel (24), and the end of the pull rope (22) away from the buckle (23) is fixedly connected to the rope wheel (24), and the pull rope (22) is wound on the surface of the rope wheel (24).

3. The ladder for a wind power tower according to claim 2, characterized in that: The bottom end of the vertical rod (17) is fixedly connected to a limiting ring (31), and the limiting ring (31) is located inside the cross rod (12). A slot (32) is fixedly connected to the surface of the sliding rod (13) at a position corresponding to the blocking rod (15), and the end of the blocking rod (15) can be inserted into the slot (32).

4. The ladder for a wind power tower according to claim 2, characterized in that: The bottom end of the vertical rod (17) is rotatably connected to a first pulley (41), and a plurality of second pulleys (42) are rotatably connected inside the sliding sleeve (21). A cleaning cotton sleeve (43) is fixed to the top end of the sliding sleeve (21), and the sliding rod (13) is located in the middle of the cleaning cotton sleeve (43).

5. The ladder for a wind power tower according to claim 2, characterized in that: Baffles (5) are fixedly connected to both sides of the pedal (16), the cross bar (12) is located between the two baffles (5), and the baffles (5) and the cross bar (12) are in contact with each other and are slidably connected.

6. The ladder for a wind power tower according to claim 2, characterized in that: A first rubber sleeve (61) is fixedly connected to the interior of the through hole (19), a second rubber sleeve (62) is fixedly connected to one end of the cross bar (12) close to the slide bar (13), the vertical bar (17) passes through the first rubber sleeve (61) and is slidably connected thereto, and the blocking rod (15) passes through the second rubber sleeve (62) and is slidably connected thereto.

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