Safety ladder stand of building tower crane

Abstract

The utility model relates to the technical field of tower cranes, and provides a building tower crane safety crawling ladder which comprises a supporting plate, a first extension plate, a crawling ladder body, a stop block, a second extension plate, a follow-up rod and a lantern ring. A hook at the upper end of a connecting rope is worn on wearable equipment, when a worker climbs upwards along the crawling ladder body, a follow-up rod is pulled through the connecting rope to move upwards along a vertical groove, and in the upward moving process of the follow-up rod, the upper side of the follow-up rod will push and extrude a clamping-shaped block, namely, the clamping-shaped block pushes and extrudes a spring; after the follow-up rod crosses the clamping block, the extrusion force borne by the spring disappears, the spring pushes the clamping block again to move to the position below the follow-up rod, so that the position below the follow-up rod is blocked, under the action of the first connecting rod, the follow-up rod moves upwards to synchronously drive the lantern ring to move upwards, and the lantern ring is driven to move downwards. Therefore, the anti-falling net is always located below the worker, and the problem that the anti-falling net is inconvenient to move along with the movement of the worker is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tower crane technical field, specifically, and relates to building tower crane safety ladder stand. BACKGROUND

[0002] The building tower crane is the high -rise lifting machinery that the most universal use of construction enterprise, and its operating room is arranged at the highest place of tower crane top, is dozens of meters from ground, and the operator has to go up and down four or five times every day, and is all from the section by section ladder stand that hangs outside the tower body, the ladder stand is placed in the interval between the section and the section, and there is no any shelter protection outside the ladder stand, and the operator is entirely dependent on hand and foot on the vertical ladder stand, and once loses hand or treads empty, will inevitably cause major casualty accident, and causes great threat to safe construction, for this reason, some welds the protective ring outside the ladder stand, but because transportation is very inconvenient, therefore, the vast majority of construction enterprises do not set directly, and the hidden danger exists.

[0003] At present, some projects set a falling prevention steel wire safety rope along the tower crane straight ladder full height, and the tower crane installation and dismounting personnel and the driver must wear safety belt and connect the falling prevention self-locking device on the safety rope before going up and down the ladder; during the process of going up and down the ladder using the safety belt and the falling prevention self-locking device, the installation and dismounting personnel and the driver often do not wear the safety belt in order to save trouble and reduce inconvenience, and only when the supervisor stands beside and requires them to wear the safety belt, can they go up and down the ladder normally, so that the safety management on site becomes very passive, and the project safety management is increased in difficulty, therefore, further improvement is needed. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses building tower crane safety ladder stand, solve the problem of inconveniently moving the anti -falling net along with the movement of the staff and inconveniently passively protecting the staff from accidental falling in the related art, to reduce high -altitude falling casualty accident.

[0005] The technical scheme of the utility model is as follows:

[0006] The building tower crane safety ladder stand, including the support plate, one side of the support plate is fixedly connected with the first extension plate, the center position of one side of the support plate is fixedly connected with the ladder body convenient for the staff to climb upwards, the upper end of the ladder body is fixedly connected with the stopper, the first extension plate is located at both sides of the ladder body, the other side of the support plate is fixedly connected with the second extension plate for reinforcing the support plate, the side surface of the first extension plate is connected with the follow-up rod for moving along with the movement of the staff through the sliding connection, the support plate is slidably connected with the thimble for passively protecting the staff, and high -altitude falling casualty accident is reduced.

[0007] Preferably, one side of the first extension plate is provided with a vertical groove, the inner walls of the two sides of the vertical groove are fixedly connected with springs, and one end of the spring is fixedly connected with a clamping block.

[0008] Preferably, the two sides of the follow-up rod are fixedly connected with auxiliary blocks, the outer side of the auxiliary block is fixedly connected with a first connecting rod, and the upper end of the follow-up rod is fixedly connected with a connecting rope.

[0009] Preferably, the follow-up rod passes through the inside of the vertical groove, the auxiliary block is attached to the outer side of the first extension plate, and one end of the first connecting rod is fixedly connected with the inner wall of the sleeve ring.

[0010] Preferably, the upper end of the connecting rope is externally connected with a connecting hook, and the connecting hook is connected with a wearable device of a worker.

[0011] Preferably, the inside of the sleeve ring is fixedly connected with a falling prevention net, and the inner wall of the sleeve ring is fixedly connected with a second connecting rod, a third connecting rod and a fourth connecting rod.

[0012] Preferably, the second connecting rod, the third connecting rod and the fourth connecting rod are in the same horizontal plane, the second connecting rod, the third connecting rod and the fourth connecting rod are located below the falling prevention net, and the second connecting rod, the third connecting rod and the fourth connecting rod are in the same horizontal plane as the first connecting rod.

[0013] Preferably, the second connecting rod is slidably connected with the two sides of the supporting plate, the third connecting rod is slidably connected with one end of the first extension plate, and the fourth connecting rod is slidably connected with one end of the second extension plate.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] 1, the utility model discloses a hook on the upper end of the connecting rope is worn on the wearable device, along with the worker climbs up along the ladder body, the worker will pull the follow-up rod along the vertical groove and move up through the connecting rope, and in the process of the follow-up rod moving up, the upper side of the follow-up rod will form the push extrusion to the clamping block, i. e. the clamping block forms the push extrusion to the spring, after the follow-up rod passes the clamping block, the extrusion force that the spring receives disappears, and the spring will push the clamping block to move to the lower side of the follow-up rod again, thereby forming the block to the lower side of the follow-up rod, and under the action of the first connecting rod, the follow-up rod moves up and synchronously drives the sleeve ring to move up, i. e. make the falling prevention net always be at the position below the worker, solve the problem that the falling prevention net moves along with the worker.

[0016] 2, the utility model discloses a staff will first fall in the upper end of the anti -fall net through the existence of the anti -fall net, and the anti -fall net is impacted and will push the follow -up rod and produce a downward moving tendency, but because the block is in the lower position of follow -up rod, cause follow -up rod to be unable to cross the block and continuously move down, thereby make follow -up rod after moving down to the upper end position of block, unable to move down again, that is, prevent the anti -fall net and continuously move down, thereby can make the anti -fall net form passive protection to staff, reduce the high falling casualty accident, solve the inconvenience to the passive protection of staff falling accident, to reduce the high falling casualty accident problem. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail below in combination with the drawings and specific embodiment.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the support plate structure schematic diagram of the utility model;

[0020] Figure 3 It is the sleeve ring structure schematic diagram of the utility model;

[0021] Figure 4 It is the spring and block structure schematic diagram of the utility model.

[0022] In the drawing: 1, support plate;2, first extension plate;21, vertical groove;22, spring;23, block;3, ladder body;31, stop block;4, follow -up rod;41, auxiliary block;42, first connecting rod;43, connecting rope;5, second extension plate;6, sleeve ring;61, anti -fall net;62, second connecting rod;63, third connecting rod;64, fourth connecting rod. SPECIFIC EMBODIMENT

[0023] The technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the embodiment of the utility model, and obviously, the described embodiment only is a part of embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor all relate to the scope of the utility model protection.

[0024] As Figures 1-4As shown, the embodiment proposes a building tower crane safety ladder, including a support plate 1, one side of the support plate 1 is fixedly connected with a first extension plate 2, the center position of one side of the support plate 1 is fixedly connected with a ladder body 3 convenient for the staff to climb upward, the upper end of the ladder body 3 is fixedly connected with a stop block 31, the first extension plate 2 is located on both sides of the ladder body 3, the other side of the support plate 1 is fixedly connected with a second extension plate 5 for reinforcing the support plate 1, the side surface of the first extension plate 2 is slidably connected with a follow-up rod 4 for moving along with the movement of the staff, the outside of the support plate 1 is slidably connected with a thimble 6 for passively protecting the staff, reducing the high falling injury accidents.

[0025] Further, one side of the first extension plate 2 is throughly provided with a vertical groove 21, the inner walls on both sides of the vertical groove 21 are fixedly connected with springs 22, one end of the spring 22 is fixedly connected with a clamping block 23, the spring 22 is used for providing a pushing force to the clamping block 23, the clamping block 23 is used for blocking the two sides of the follow-up rod 4 from accidentally sliding downward along the vertical groove 21, that is, the clamping block 23 is used for supporting the two sides of the follow-up rod 4.

[0026] Further, the two sides of the follow-up rod 4 are fixedly connected with auxiliary blocks 41, the outer side of the auxiliary block 41 is fixedly connected with a first connecting rod 42, the upper end center position of the follow-up rod 4 is fixedly connected with a connecting rope 43, the follow-up rod 4 penetrates through the inside of the vertical groove 21, the auxiliary block 41 is attached to the outside of the first extension plate 2, one end of the first connecting rod 42 is fixedly connected with the inner wall of the thimble 6, the upper end of the connecting rope 43 is connected with a hook, the hook is connected with the equipment worn by the staff, the auxiliary block 41 is used for limiting the follow-up rod 4, preventing the follow-up rod 4 from moving horizontally in the vertical groove 21, the existence of the first connecting rod 42 makes the movement of the follow-up rod 4 drive the thimble 6 to move.

[0027] Further, the inside of the thimble 6 is fixedly connected with a falling prevention net 61, the inner wall of the thimble 6 is fixedly connected with a second connecting rod 62, a third connecting rod 63 and a fourth connecting rod 64, the second connecting rod 62, the third connecting rod 63 and the fourth connecting rod 64 are on the same horizontal plane, the second connecting rod 62, the third connecting rod 63 and the fourth connecting rod 64 are all below the falling prevention net 61, the second connecting rod 62, the third connecting rod 63 and the fourth connecting rod 64 are all on the same horizontal plane with the first connecting rod 42, the second connecting rod 62 is slidably connected with both sides of the support plate 1, the third connecting rod 63 is slidably connected with one end of the first extension plate 2, the fourth connecting rod 64 is slidably connected with one end of the second extension plate 5, the existence of the second connecting rod 62, the third connecting rod 63 and the fourth connecting rod 64 is used for limiting the thimble 6, so that the position of the thimble 6 outside the support plate 1 remains unchanged, the falling prevention net 61 is used for passively protecting the staff.

[0028] The working principle and use instruction of the utility model are as follows: when the work of climbing upward by using the ladder body 3 is needed, first, the worker wears the hook of the connecting rope 43 upper end on the wearing equipment, when the worker climbs upward along the ladder body 3, the worker will pull the follow-up rod 4 to move upward along the vertical groove 21 through the connecting rope 43, and in the process of moving upward of the follow-up rod 4, the upper side of the follow-up rod 4 will push and extrude the clamping block 23, that is, the clamping block 23 pushes and extrudes the spring 22, after the follow-up rod 4 passes the clamping block 23, the extrusion force of the spring 22 disappears, the spring 22 will push the clamping block 23 to move to the lower side of the follow-up rod 4 again, thereby forming the block to the lower side of the follow-up rod 4, and under the action of the first connecting rod 42, the upward movement of the follow-up rod 4 will drive the sleeve ring 6 to move upward synchronously, that is, the anti-falling net 61 is always at the position below the worker;

[0029] When the worker falls accidentally, because of the existence of the anti-falling net 61, the worker will first fall on the upper end of the anti-falling net 61, the anti-falling net 61 will push the follow-up rod 4 to generate a downward movement trend under the impact, but because the clamping block 23 is at the lower side of the follow-up rod 4, the follow-up rod 4 cannot continuously move downward after passing the clamping block 23, thereby the follow-up rod 4 cannot move downward again after moving to the upper end of the clamping block 23, that is, the anti-falling net 61 cannot continuously move downward, thereby the anti-falling net 61 can form passive protection to the worker, and the high falling accident is reduced.

[0030] The above is only the preferable embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A safety ladder for a construction tower crane, including a support plate (1), characterized in that, A first extension plate (2) is fixedly connected to one side of the support plate (1). A ladder body (3) for workers to climb is fixedly connected to the center of one side of the support plate (1). A stop block (31) is fixedly connected to the upper end of the ladder body (3). The first extension plate (2) is located on both sides of the ladder body (3). A second extension plate (5) for reinforcing the support plate (1) is fixedly connected to the other side of the support plate (1). A follower rod (4) for moving with the movement of workers is slidably connected through the side of the first extension plate (2). A collar (6) for passive protection of workers and reducing falls from heights is slidably connected to the outside of the support plate (1).

2. The safety ladder for building tower cranes according to claim 1, characterized in that, A vertical groove (21) is provided through one side of the first extension plate (2), and springs (22) are fixedly connected to the inner walls on both sides of the vertical groove (21), and a clip (23) is fixedly connected to one end of the spring (22).

3. The safety ladder for building tower cranes according to claim 1, characterized in that, Auxiliary blocks (41) are fixedly connected to both sides of the follower rod (4), a first connecting rod (42) is fixedly connected to the outer side of the auxiliary block (41), and a connecting rope (43) is fixedly connected to the center of the upper end of the follower rod (4).

4. The safety ladder for building tower cranes according to claim 3, characterized in that, The follower rod (4) passes through the interior of the vertical groove (21), the auxiliary block (41) is attached to the outside of the first extension plate (2), and one end of the first connecting rod (42) is fixedly connected to the inner wall of the collar (6).

5. The safety ladder for building tower cranes according to claim 3, characterized in that, The upper end of the connecting rope (43) is connected to a connecting hook, which is connected to the worker's wearable equipment.

6. The safety ladder for building tower cranes according to claim 1, characterized in that, A fall arresting net (61) is fixedly connected inside the collar (6), and a second connecting rod (62), a third connecting rod (63) and a fourth connecting rod (64) are fixedly connected to the inner wall of the collar (6).

7. The safety ladder for building tower cranes according to claim 6, characterized in that, The second connecting rod (62), the third connecting rod (63) and the fourth connecting rod (64) are on the same horizontal plane. The second connecting rod (62), the third connecting rod (63) and the fourth connecting rod (64) are all located below the fall protection net (61). The second connecting rod (62), the third connecting rod (63) and the fourth connecting rod (64) are all on the same horizontal plane as the first connecting rod (42).

8. The safety ladder for building tower cranes according to claim 6, characterized in that, The second connecting rod (62) is slidably connected to both sides of the support plate (1), the third connecting rod (63) is slidably connected to one end of the first extension plate (2), and the fourth connecting rod (64) is slidably connected to one end of the second extension plate (5).

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