Vertical ladder stand system easy to climb

Abstract

The invention relates to the field of vertical crawling ladders, in particular to a vertical crawling ladder system easy to climb, which is used for solving the problems that the stability of a protection system is affected and accidental injury is caused to personnel due to the lack of energy absorption or insufficient energy absorption effect in a vertical crawling ladder system. According to the invention, a plurality of groups of pulley blocks are arranged at the top of the vertical ladder stand system to bend the safety steel cable, so that the bent safety steel cable is used as an energy absorption area, extended energy absorption of the safety steel cable is realized, and the situation of self-locking failure caused by too strong falling protection rigidity or personal injury caused by pulling of personnel is avoided; tension borne by the safety steel cable is transmitted to the other side of the top fixing frame, the tension borne by the safety steel cable is distributed on the two sides of the balancing frame, then the two sides of the top fixing frame are subjected to torque in the opposite directions at the same time, the top fixing frame is prevented from being subjected to single torque, the stability of the top fixing frame is improved, and the service life of the top fixing frame is prolonged.

Description

Technical Field

[0001] The invention relates to the field of vertical ladders, in particular to a vertical ladder system which is easy to climb. Background Art

[0002] In the wind power, hydropower, power grid and other industry sites, there are many vertical ladders or other sites with a vertical inclination angle of no more than 15°. If the workers do not have high-altitude fall protection equipment when working at heights, once a fall occurs, it will endanger personal safety. Therefore, the existing vertical ladders are usually equipped with protective steel cables and self-locking shuttles during installation to avoid accidents involving people falling. At present, the vertical ladder systems in the prior art usually do not include buffers or include elastic buffers, which cannot achieve a good energy absorption effect in actual use and may even cause multiple vibrations, which may cause a secondary slide of the wire rope self-locking device to cause personal injury. At the same time, the vertical ladder system that lacks energy absorption effect is prone to cause severe pulling of the user and thus personal injury to the user due to the lack of buffering when achieving self-locking. In view of the above technical problems, the present application proposes a solution. Summary of the invention

[0003] In the present invention, multiple pulley groups are arranged at the top of the vertical ladder system to bend the safety steel cable, so that the bent safety steel cable is used as an energy absorption zone, thereby achieving extended energy absorption of the safety steel cable, avoiding the self-locking failure caused by excessive rigidity of the fall protection or pulling and causing personal injury to personnel, and transmitting the tension exerted on the safety steel cable to the other side of the top fixed frame, The tension exerted on the safety steel cable is distributed on both sides of the balance frame, so that both sides of the top fixed frame are subjected to torques in opposite directions at the same time, and it is avoided that the top fixed frame is subjected to a single torque in the direction of the safety steel cable when a fall occurs, thereby improving the stability and service life of the top fixed frame, and solving the problem that the lack of energy absorption or insufficient energy absorption effect in the vertical ladder system affects the stability of the protection system and causes accidental injuries to personnel, and a vertical ladder system that is easy to climb is proposed.

[0004] The objective of the present invention can be achieved through the following technical scheme: a vertical ladder system that is easy to climb, comprising a vertical ladder, wherein a plurality of groups of ladder cross bars are fixedly installed inside the vertical ladder, a top fixing frame is fixedly installed on the top of the vertical ladder, and the top fixing frame is connected to the ladder cross bars at the top of the vertical ladder through a plurality of groups of buckles, and a balancing frame is fixedly installed on the top of the top fixing frame, and a bottom fixing frame is fixedly installed on the ladder cross bars at the bottom of the vertical ladder. A safety steel cable is installed between the top fixing frame and the bottom fixing frame; a tensioning adjustment mechanism is fixedly installed on the outer wall of the bottom fixing frame, and the tensioning adjustment mechanism is fixedly connected to the bottom end of the safety steel cable, a buffer mechanism is arranged on the top fixing frame, the safety steel cable passes through the inside of the buffer mechanism, the top end of the safety steel cable is elastically connected to the inside of the balancing frame, and a self-locking shuttle is slidably connected to the safety steel cable, and the self-locking shuttle is connected to the safety steel cable through two independent self-locking mechanisms.

[0005] As a preferred embodiment of the present invention, the buffer mechanism includes a reversing wheel group, a buffer pulley, a buffer wheel frame, a buffer rod and a buffer spring. The reversing wheel group is provided with three groups, which are respectively located on the right side, left side and left side of the safety steel cable. The safety steel cable is restricted by the reversing wheel group and is in a bent shape. A hole is opened on the top fixed frame, and the buffer rod is slidably connected to the inside of the hole. A buffer wheel frame is fixedly installed on one end of the buffer rod facing the safety steel cable, and a buffer pulley is rotatably connected inside the buffer wheel frame. The buffer pulley is supported on the outer wall of the safety steel cable. The safety steel cable bends in a direction away from the top fixed frame under the action of the buffer pulley. A buffer spring is arranged between the buffer wheel frame and the top fixed frame, and the buffer spring is sleeved on the outer wall of the buffer rod, and the two ends of the buffer spring respectively abut against the outer walls of the buffer wheel frame and the top fixed frame.

[0006] As a preferred embodiment of the present invention, a mounting block is fixedly installed on one end of the buffer rod away from the safety steel cable, a balancing wheel is installed on the outer wall of the top fixing frame close to the mounting block, and the balancing wheel rotates through a bearing seat, and a balancing rod is fixedly installed on the side of the balancing frame close to the mounting block, the mounting block and the balancing rod are connected by a balancing cable, and the balancing cable is wrapped around the outer wall of the balancing wheel, and the balancing cable is made of elastic material.

[0007] As a preferred embodiment of the present invention, the safety steel cable passes through the bottom of the balance frame, and the part of the safety steel cable located inside the balance frame is fixedly installed with an end hook, and the two sides of the end hook are snap-connected with the connecting block, and a balance spring is fixedly installed on the top of the connecting block, and the top of the balance spring is fixedly connected to the upper wall of the balance frame.

[0008] As a preferred embodiment of the present invention, a limiter is sleeved on the top end of the safety steel cable, and the limiter is fixed to a fixed position on the safety steel cable by pressing. The limiter is located at the bottom of the balance frame and is in close contact with the lower surface of the balance frame.

[0009] As a preferred embodiment of the present invention, a hole larger than the diameter of the safety steel cable is opened on the lower surface of the balance frame, and the safety steel cable can slide in the hole on the lower surface of the balance frame. When the safety steel cable slides downward, the limiter will leave the lower surface of the balance frame, and the maximum downward movement of the safety steel cable is less than the maximum stretching length of the balance spring.

[0010] As a preferred embodiment of the present invention, a method for operating a vertical ladder system comprises the following steps: step one: the self-locking shuttle is located at the bottom of the safety cable, and the safety buckle is connected to the self-locking shuttle when the ladder is used, and the climber climbs up through the ladder crossbar, and the safety buckle drives the self-locking shuttle to slide upward on the safety cable; step two: when a fall occurs, the self-locking shuttle slides downward quickly driven by the safety buckle, triggering the self-locking function of the self-locking shuttle, so that the self-locking shuttle and the safety cable remain fixed, and the safety cable is stretched downward driven by the self-locking shuttle; step three: when the safety cable is stretched downward, the pressure of the safety cable on the buffer pulley increases, and the buffer pulley transmits the pressure to the buffer spring through the buffer wheel frame, and the pressure on the buffer spring increases, causing the buffer spring to be compressed, and the buffer The impact wheel frame pushes the buffer rod to slide in the hole inside the top fixed frame; Step 4: After the buffer rod slides, it drives the mounting block to extend, and the mounting block extends outward to pull the balance rope. The tension on the balance rope increases, which increases the tension of the balance rope on the balance rod; Step 5: The safety steel cable bears the tensile load of the self-locking shuttle, and transmits the tension to the internal structure of the balance frame. The balance spring inside the balance frame is subjected to increased tension and transmits the tension to the top of the balance frame; Step 6: Both sides of the balance frame receive the downward tension of the balance spring and the downward tension of the balance rope at the same time. The two sets of downward tensions form torque on the balance frame. The balance frame transmits the two sets of torques to the top fixed frame at the same time, and offsets the two sets of torques on the top fixed frame, reducing the torque on the top fixed frame and turning it into vertical downward downward force.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, by arranging multiple pulley groups at the top of the vertical ladder system, the safety steel cable is bent, so that the bent safety steel cable is used as an energy absorption zone. When a fall occurs, the tension on the safety steel cable is transmitted to the multiple pulley groups in the energy absorption zone, driving the bent safety steel cable to straighten, thereby achieving extended energy absorption of the safety steel cable, avoiding the self-locking failure caused by excessive rigidity of the fall protection or the pulling and causing personal injury to personnel; 2. In the present invention, when the safety steel cable is straightened, the tension on the safety steel cable is transmitted to the other side of the top fixed frame, and the reversing transmission of force is realized through the pulley structure, so that the tension on the safety steel cable is distributed on both sides of the balance frame, so that the two sides of the top fixed frame are simultaneously subjected to torques in opposite directions, avoiding the top fixed frame being subjected to a single torque in the direction of the safety steel cable when a fall occurs, thereby improving the stability and service life of the top fixed frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the buffer mechanism of the present invention; Figure 3 It is a schematic diagram of the internal structure of the balance frame of the present invention; Figure 4 It is a schematic diagram of the structure of the buffer rod of the present invention; Figure 5 It is a schematic side view of the structure of the present invention; Figure 6 It is a schematic diagram of the tension adjustment mechanism of the present invention.

[0014] In the figure: 1. vertical ladder; 2. safety steel cable; 3. self-locking shuttle; 4. tension adjustment mechanism; 5. top fixed frame; 6. buffer mechanism; 61. reversing wheel group; 62. buffer pulley; 63. buffer wheel frame; 64. buffer rod; 65. buffer spring; 7. balance frame; 8. ladder cross bar; 9. balance wheel; 10. balance cable; 11. balance pull rod; 12. limiter; 13. end hook; 14. connecting block; 15. balance spring; 16. bottom fixed frame; 17. mounting block. DETAILED DESCRIPTION

[0015] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. 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 creative work are within the scope of protection of the present invention.

[0016] Example 1

[0017] See also Figure 1 - Figure 6 As shown, a vertical ladder system that is easy to climb includes a vertical ladder 1, multiple groups of ladder cross bars 8 are fixedly installed inside the vertical ladder 1, so that users can climb up through the ladder cross bars 8. A top fixing frame 5 is fixedly installed on the top of the vertical ladder 1, and the top fixing frame 5 is connected to the ladder cross bars 8 at the top of the vertical ladder 1 through multiple groups of buckles. A balance frame 7 is fixedly installed on the top of the top fixing frame 5, and a bottom fixing frame 16 is fixedly installed on the ladder cross bars 8 at the bottom of the vertical ladder 1. A safety steel cable 2 is installed between the top fixing frame 5 and the bottom fixing frame 16. A limiter 12 is sleeved on the top of the safety steel cable 2. The limiter 12 is fixed to a fixed position on the safety steel cable 2 by pressing. The limiter 12 is located at the bottom of the balance frame 7 and is close to the lower surface of the balance frame 7, so as to control the length of the safety steel cable 2 entering the balance frame 7 and ensure the protective effect of the safety steel cable 2. A tensioning adjustment mechanism 4 is fixedly installed on the outer wall of the bottom fixing frame 16, and the tensioning adjustment mechanism 4 is fixedly connected to the bottom end of the safety steel cable 2. The tensioning adjustment mechanism 4 can adjust the straightening degree of the safety steel cable 2 to prevent the safety steel cable 2 from shaking when the wind blows or other external forces interfere. A buffer mechanism 6 is arranged on the top fixing frame 5, and the buffer mechanism 6 includes a reversing wheel group 61, a buffer pulley 62, a buffer wheel frame 63, a buffer rod 64 and a buffer spring 65. The reversing wheel group 61 is provided with three groups, which are respectively located on the right side, left side and left side of the safety steel cable 2. The safety steel cable 2 is restricted by the reversing wheel group 61 and is bent in a shape. A hole is opened on the top fixing frame 5, and the buffer rod 64 is slidably connected to the inside of the hole. A buffer wheel frame 63 is fixedly installed on one end of the buffer rod 64 facing the safety steel cable 2, and a buffer pulley 62 is rotatably connected inside the buffer wheel frame 63. The buffer pulley 62 is supported on The outer wall of the safety cable 2 is bent in the direction away from the top fixing frame 5 under the action of the buffer pulley 62. A buffer spring 65 is arranged between the buffer wheel frame 63 and the top fixing frame 5. The buffer spring 65 is sleeved on the outer wall of the buffer rod 64, and the two ends of the buffer spring 65 are respectively abutted against the outer walls of the buffer wheel frame 63 and the top fixing frame 5. The safety cable 2 passes through the inside of the buffer mechanism 6. A hole larger than the diameter of the safety cable 2 is opened on the lower surface of the balance frame 7. The safety cable 2 can slide in the hole on the lower surface of the balance frame 7. The top end of the safety cable 2 is elastically connected to the inside of the balance frame 7. When the safety cable 2 slides downward, the limiter 12 will leave the lower surface of the balance frame 7. The maximum downward amplitude of the safety cable 2 is less than the maximum stretching length of the balance spring 15. A self-locking shuttle 3 is slidably connected to the safety cable 2. The self-locking shuttle 3 is connected to the safety cable 2 through two independent self-locking mechanisms. The end of the buffer rod 64 away from the safety steel cable 2 is fixedly mounted with a mounting block 17, and a balancing wheel 9 is mounted on the outer wall of the top fixing frame 5 close to the mounting block 17. The balancing wheel 9 is rotated by a bearing seat, and a balancing rod 11 is fixedly mounted on the side of the balancing frame 7 close to the mounting block 17. The mounting block 17 and the balancing rod 11 are connected by a balancing cable 10. The balancing cable 10 is wound around the outer wall of the balancing wheel 9. The balancing cable 10 is made of elastic material, so that the balancing cable 10 can be stretched when being pulled, and the pulling force is transmitted to the balancing rod 11 at the same time, and then the torque is applied to the balancing frame 7 through the balancing rod 11; The safety steel cable 2 passes through the bottom of the balancing frame 7. The part of the safety steel cable 2 located inside the balancing frame 7 is fixedly installed with an end hook 13. The two sides of the end hook 13 are engaged and connected with the connecting block 14. A balancing spring 15 is fixedly installed on the top of the connecting block 14. The top of the balancing spring 15 is fixedly connected to the upper wall of the balancing frame 7. When the safety steel cable 2 is subjected to tension, the tension is transmitted to the balancing frame 7 through the balancing spring 15. After the balancing frame 7 is subjected to torque, it balances the torque applied by the balancing rod 11, thereby improving the stability of the balancing frame 7.

[0018] Example 2

[0019] See also Figure 1 - Figure 6As shown, a method for operating a vertical ladder system is shown, the method comprising the following steps: step one: the self-locking shuttle 3 is located at the bottom of the safety cable 2. When using the ladder, the safety buckle is connected to the self-locking shuttle 3, and the climber climbs up through the ladder crossbar 8, and the safety buckle drives the self-locking shuttle 3 to slide upward on the safety cable 2; step two: when a fall occurs, the self-locking shuttle 3 slides downward quickly driven by the safety buckle, triggering the self-locking function of the self-locking shuttle 3, so that the self-locking shuttle 3 and the safety cable 2 remain fixed, and the safety cable 2 is stretched downward driven by the self-locking shuttle 3; step three: when the safety cable 2 is stretched downward, the pressure of the safety cable 2 on the buffer pulley 62 increases, and the buffer pulley 62 transmits the pressure to the buffer spring 65 through the buffer wheel frame 63. The pressure on the buffer spring 65 increases, causing the buffer spring 65 to be compressed, and the buffer wheel frame 63 pushes the buffer rod 64 to The buffer rod 64 slides in the hole inside the top fixing frame 5; Step 4: After the buffer rod 64 slides, it drives the mounting block 17 to extend, and the mounting block 17 extends outward to pull the balancing cable 10, and the tension on the balancing cable 10 increases, so that the tension of the balancing cable 10 on the balancing rod 11 increases; Step 5: The safety steel cable 2 bears the tensile load of the self-locking shuttle 3, and transmits the tensile force to the internal structure of the balancing frame 7. The balancing spring 15 inside the balancing frame 7 is subjected to increased tension and transmits the tension to the top of the balancing frame 7; Step 6: Both sides of the balancing frame 7 receive the downward tension of the balancing spring 15 and the downward tension of the balancing cable 10 at the same time. The two sets of downward tensions form torque on the balancing frame 7. The balancing frame 7 transmits the two sets of torques to the top fixing frame 5 at the same time, and the two sets of torques are offset on the top fixing frame 5, thereby reducing the torque on the top fixing frame 5 and converting it into a vertical downward downward force.

[0020] In the present invention, multiple pulley groups are arranged at the top of the vertical ladder system to bend the safety steel cable, so that the bent safety steel cable is used as an energy absorption zone, thereby achieving extended energy absorption of the safety steel cable, avoiding self-locking failure caused by excessive rigidity of the fall protection or pulling and causing personal injury to personnel, and transmitting the tension exerted on the safety steel cable to the other side of the top fixed frame, The tension exerted on the safety steel cable is distributed on both sides of the balance frame, so that both sides of the top fixed frame are subjected to torques in opposite directions at the same time, avoiding the top fixed frame from being subjected to a single torque in the direction of the safety steel cable when a fall occurs, thereby improving the stability and service life of the top fixed frame.

[0021] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An easy-to-climb vertical ladder system, characterized in that: The invention comprises a vertical ladder (1), wherein a plurality of groups of ladder cross bars (8) are fixedly installed inside the vertical ladder (1), a top fixing frame (5) is fixedly installed at the top of the vertical ladder (1), the top fixing frame (5) is connected to the ladder cross bars (8) at the top of the vertical ladder (1) through a plurality of groups of buckles, a balancing frame (7) is fixedly installed at the top of the top fixing frame (5), a bottom fixing frame (16) is fixedly installed on the ladder cross bars (8) at the bottom of the vertical ladder (1), and a safety steel cable is installed between the top fixing frame (5) and the bottom fixing frame (16). (2); a tension adjustment mechanism (4) is fixedly mounted on the outer wall of the bottom fixing frame (16); the tension adjustment mechanism (4) is fixedly connected to the bottom end of the safety steel cable (2); a buffer mechanism (6) is arranged on the top fixing frame (5); the safety steel cable (2) passes through the inside of the buffer mechanism (6); the top end of the safety steel cable (2) is elastically connected to the inside of the balance frame (7); a self-locking shuttle (3) is slidably connected to the safety steel cable (2); the self-locking shuttle (3) is connected to the safety steel cable (2) through two independent self-locking mechanisms.

2. The easy-to-climb vertical ladder system according to claim 1, characterized in that: The buffer mechanism (6) comprises a reversing wheel group (61), a buffer pulley (62), a buffer wheel frame (63), a buffer rod (64) and a buffer spring (65). The reversing wheel group (61) is provided with three groups, which are respectively on the right side, the left side and the left side of the safety cable (2). The safety cable (2) is restricted by the reversing wheel group (61) and is in a bent shape. A hole is provided on the top fixing frame (5). The buffer rod (64) is slidably connected to the inside of the hole. The buffer wheel frame is fixedly installed on one end of the buffer rod (64) facing the safety cable (2). (63), a buffer pulley (62) is rotatably connected inside the buffer wheel frame (63), the buffer pulley (62) is supported on the outer wall of the safety steel cable (2), the safety steel cable (2) is bent in a direction away from the top fixing frame (5) under the action of the buffer pulley (62), a buffer spring (65) is provided between the buffer wheel frame (63) and the top fixing frame (5), the buffer spring (65) is sleeved on the outer wall of the buffer rod (64), and the two ends of the buffer spring (65) are respectively in contact with the outer walls of the buffer wheel frame (63) and the top fixing frame (5).

3. The easy-to-climb vertical ladder system according to claim 2, characterized in that: A mounting block (17) is fixedly mounted on one end of the buffer rod (64) away from the safety steel cable (2); a balancing wheel (9) is mounted on an outer wall of a side of the top fixing frame (5) close to the mounting block (17); the balancing wheel (9) is rotated via a bearing seat; a balancing rod (11) is fixedly mounted on a side of the balancing frame (7) close to the mounting block (17); the mounting block (17) and the balancing rod (11) are connected via a balancing rope (10); the balancing rope (10) is wound around the outer wall of the balancing wheel (9); and the balancing rope (10) is made of an elastic material.

4. The easy-to-climb vertical ladder system according to claim 1, characterized in that: The safety steel cable (2) passes through the bottom of the balancing frame (7); the portion of the safety steel cable (2) located inside the balancing frame (7) is fixedly mounted with an end hook (13); both sides of the end hook (13) are engaged with a connecting block (14); a balancing spring (15) is fixedly mounted on the top of the connecting block (14); and the top end of the balancing spring (15) is fixedly connected to the upper wall of the balancing frame (7).

5. The easy-to-climb vertical ladder system according to claim 1, characterized in that: The top end of the safety steel cable (2) is sleeved with a limiter (12), and the limiter (12) is fixed to a fixed position on the safety steel cable (2) by pressing, and the limiter (12) is located at the bottom of the balance frame (7) and is in close contact with the lower surface of the balance frame (7).

6. The easy-to-climb vertical ladder system according to claim 1, characterized in that: The lower surface of the balancing frame (7) is provided with a hole having a diameter larger than that of the safety steel cable (2), and the safety steel cable (2) can slide in the hole on the lower surface of the balancing frame (7). When the safety steel cable (2) slides downward, the stopper (12) will leave the lower surface of the balancing frame (7), and the maximum downward movement of the safety steel cable (2) is less than the maximum stretching length of the balancing spring (15).

7. The easy-to-climb vertical ladder system according to claim 1, characterized in that: A vertical ladder system operation method is provided. The invention comprises the following steps: step 1: the self-locking shuttle (3) is located at the bottom of the safety steel cable (2); when using the ladder, the safety buckle is connected to the self-locking shuttle (3), and the user climbs upwards through the ladder crossbar (8); the safety buckle drives the self-locking shuttle (3) to slide upwards on the safety steel cable (2); step 2: when a fall occurs, the self-locking shuttle (3) is driven by the safety buckle to slide downwards quickly, triggering the self-locking function of the self-locking shuttle (3), so that the self-locking shuttle (3) and the safety steel cable are locked. (2) is kept fixed, and the safety cable (2) is stretched downward under the drive of the self-locking shuttle (3); Step 3: When the safety cable (2) is stretched downward, the pressure of the safety cable (2) on the buffer pulley (62) increases, and the buffer pulley (62) transmits the pressure to the buffer spring (65) through the buffer wheel frame (63). The pressure on the buffer spring (65) increases, causing the buffer spring (65) to be compressed, and the buffer wheel frame (63) pushes the buffer rod (64) to the top fixed frame (5 ) slides in the hole inside; Step 4: After the buffer rod (64) slides, it drives the mounting block (17) to extend, and the mounting block (17) extends outward to pull the balance rope (10), and the tension on the balance rope (10) increases, so that the tension of the balance rope (10) on the balance rod (11) increases; Step 5: The safety steel cable (2) bears the tensile load of the self-locking shuttle (3), and transmits the tensile force to the internal structure of the balance frame (7), and the balance spring (15) inside the balance frame (7) is ) is subjected to increased tension, and transmits the tension to the top of the balancing frame (7); Step 6: Both sides of the balancing frame (7) receive the downward tension of the balancing spring (15) and the downward tension of the balancing rope (10) at the same time, and the two sets of downward tensions form torques on the balancing frame (7), and the balancing frame (7) transmits the two sets of torques to the top fixing frame (5) at the same time, and the two sets of torques are offset on the top fixing frame (5), thereby reducing the torque received by the top fixing frame (5) and converting it into vertical downward downward force.

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