Climbing frame anti-falling device and climbing frame

Abstract

The present invention discloses a climbing frame anti-fall device and a climbing frame, comprising a base, a mandrel, a driving wheel, and a driven wheel; the mandrel and the base are rotatably connected via a first rotating shaft, the mandrel being divided into a first mandrel and a second mandrel by the first rotating shaft; the driving wheel and the base are rotatably connected via a second rotating shaft; tooth-shaped protrusions are spaced apart on the outer circumference of the driving wheel, the tooth-shaped protrusions matching the gaps in the guide rails; the driven wheel and the driving wheel cooperate to form a blocking mechanism; the driving wheel and the driven wheel are coaxially arranged, a pendulum block is provided on the outer wall of the driven wheel, and the guide rail moves vertically downward to drive the driving wheel to rotate. When the downward movement speed reaches a critical value, the blocking mechanism activates and drives the driven wheel to rotate. The pendulum block contacts the second mandrel under the rotation of the driven wheel, driving the mandrel to rotate, causing the end of the first mandrel to engage the gap in the guide rails. The present invention has a simple structure and a novel design.

Description

Technical Field

[0001] The present invention relates to the field of building technology, and in particular to a climbing frame anti-falling device and a climbing frame. Background Art

[0002] With the continuous innovation of construction technology and the increasing maturity of processes, all-steel attached lifting scaffolding is gradually replacing the original I-beam cantilever scaffolding in the construction of high-rise and super-high-rise buildings. All-steel attached lifting scaffolding (hereinafter referred to as climbing scaffolding) is suitable for high-rise and super-high-rise buildings with frame or shear wall structures, especially those with complex structures. It can adapt to the construction of complex shapes such as floor height changes, arcs, corners, balconies, cantilevers, and cantilever edges. It does not interfere with vertical transportation equipment and can be erected once and raised and lowered multiple times, with good economic and social benefits.

[0003] The climbing frame is mainly composed of frame structure, attachment supports, anti-tilt and anti-fall devices, lifting mechanism and control device. Summary of the Invention

[0004] The invention provides a climbing frame anti-falling device and a climbing frame. The climbing frame anti-falling device has a novel structure and a good anti-falling effect.

[0005] The technical solution adopted in the present invention is:

[0006] A climbing frame anti-fall device comprises a base, a top rod, a driving wheel and a driven wheel; the top rod and the base are rotatably connected by a first rotating shaft, and the top rod is divided into a first top rod and a second top rod by the first rotating shaft; the driving wheel and the base are rotatably connected by a second rotating shaft; toothed protrusions are provided at intervals on the outer circumference of the driving wheel, and the toothed protrusions match the gap of the guide rail; the driven wheel cooperates with the driving wheel to form a blocking mechanism; the driving wheel and the driven wheel are coaxially arranged, and a pendulum block is provided on the outer wall of the driven wheel, and the guide rail moves vertically downward to drive the driving wheel to rotate. When the downward movement speed reaches a critical value, the blocking mechanism takes effect and drives the driven wheel to rotate. The pendulum block contacts the second top rod under the rotation of the driven wheel, driving the top rod to rotate so that the end of the first top rod is stuck in the gap of the guide rail.

[0007] The present invention provides an embodiment, wherein the driving wheel includes a main body, on which the tooth-shaped protrusion is provided, and a plurality of first grooves are provided along the outer circumference of the main body, different from the tooth-shaped protrusion, and a clamping block is provided in the first groove. The inner circumference of the driven wheel is provided with a plurality of second grooves. When the driving wheel rotates rapidly, the clamping block enters the second groove under the action of centrifugal force, so that the driving wheel drives the driven wheel to rotate.

[0008] The present invention provides an embodiment in which one end of the clamping block completely enters the second groove under the action of centrifugal force and contacts the top of the second groove, and the other end of the clamping block is still located in the first groove.

[0009] The present invention provides an embodiment, wherein the block is selected from a spherical object or a cylindrical object.

[0010] The present invention provides an embodiment in which the second groove is further provided with a guide portion to facilitate the entry of the clamping block into the second groove during the rotation of the driven wheel to realize the linkage of the driving wheel and the driven wheel.

[0011] The present invention provides an embodiment in which the central axis of the first groove is inclined, so as to facilitate the entry of the blocking block into the second groove during the rotation process.

[0012] The present invention provides an embodiment, wherein the base is U-shaped, and the push rod, the driving wheel and the driven wheel are arranged in the U-shaped cavity.

[0013] The present invention provides an embodiment in which the first grooves are symmetrically provided on both sides of the driving wheel body, the clamping blocks are arranged in the first grooves, and the same number of driven wheels matching the driving wheels are also provided.

[0014] The present invention provides an embodiment, wherein the weight of the first push rod is greater than the weight of the second push rod; an eccentric spring is also provided, one end of the eccentric spring is connected to the first push rod, and the other end is connected to the base, and the eccentric spring is in a tensioned state.

[0015] The present application also provides a climbing frame, which adopts any climbing frame anti-fall device described in the present application.

[0016] The beneficial effect of the present invention is that as the falling speed of the climbing frame anti-fall device of the present invention increases, the time for jamming becomes shorter, so that jamming can be achieved more quickly to prevent further falling, thereby enhancing safety. At the same time, the structure is simple and the design is novel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the front view structure of the present invention;

[0019] Figure 3 This is a schematic structural diagram of the driving wheel and the driven wheel of the present invention;

[0020] Figure 4 This is a schematic diagram of the driving wheel structure of the present invention;

[0021] Figure 5 Schematic diagram of the driven wheel structure of the present invention;

[0022] Figure 6 It is a schematic diagram of the longitudinal cross-section structure of the present invention;

[0023] Figure 7 It is a side structural schematic diagram of the present invention.

[0024] Reference numerals:

[0025] Base 1, push rod 2, first push rod 21, second push rod 22, driving wheel 3, toothed protrusion 31, first groove 32, block 33, driven wheel 4, pendulum block 41, second groove 42, guide part 43, second rotating shaft 5, first rotating shaft 6, guide rail 7, eccentric spring 8. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as limiting the present invention. In addition, if the terms "first", "second", "third", etc. appear, these terms are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," and "overhanging" does not necessarily imply that the component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0031] In the description of the embodiments of the present invention, "a plurality of" means at least two.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and 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 specific circumstances.

[0033] Example 1

[0034] As shown in the figure, a climbing frame anti-fall device includes a base 1, a top rod 2, a driving wheel 3 and a driven wheel 4; the top rod 2 and the base 1 are rotatably connected by a first rotating shaft 6, and the top rod 2 is divided into a first top rod 21 and a second top rod 22 by the first rotating shaft; the driving wheel 3 and the base 1 are rotatably connected by a second rotating shaft 5; the outer circumference of the driving wheel 3 is provided with toothed protrusions 31 at intervals, and the toothed protrusions 31 match the gap of the guide rail 7; the driven wheel 4 cooperates with the driving wheel 3 to form a blocking mechanism; the driving wheel 3 and the driven wheel 4 are coaxially arranged, and a pendulum block 41 is provided on the outer wall of the driven wheel 4. The guide rail 7 moves vertically downward to drive the driving wheel 3 to rotate. When the downward movement speed reaches a critical value, the blocking mechanism takes effect and drives the driven wheel 4 to rotate. The pendulum block 41 contacts the second top rod 22 under the rotation of the driven wheel 4, driving the top rod 2 to rotate so that the end of the first top rod 21 is stuck in the gap of the guide rail 7. The driving wheel 3 and the driven wheel 4 are not in direct contact; a certain assembly gap exists between them. This gap can be large or small, but it is necessary to ensure that the driven wheel 4 remains stationary during a slow drop and does not cause the push rod 2 to rotate. The toothed protrusion 31 is circular, like a bicycle gear. The guide rail 7 can be understood as a linear chain, which drives the gears to rotate.

[0035] Example 2

[0036] When the cam 24 is in the process of being rotated, the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the

[0037] The driving wheel 3 includes a body, on which the tooth-shaped protrusion 31 is provided. Different from the tooth-shaped protrusion 31, a plurality of first grooves 32 are provided along the outer circumference of the body. A clamping block 33 is provided in the first groove 32. The inner circumference of the driven wheel 4 is provided with a plurality of second grooves 42. When the driving wheel 3 rotates rapidly, the clamping block 33 enters the second groove 42 under the action of centrifugal force, so that the driving wheel 3 drives the driven wheel 4 to rotate. The driving wheel 3 and the driven wheel 4 form a convex and concave fit. The first groove 32 and the second groove 42 are as many as possible to shorten the blocking stroke. The figure shows a solution with 4 second grooves 42. Furthermore, the second groove 42 is provided on the inner wall of the upper semicircle of the driven wheel 4, so that

[0038] As shown in the figure, one end of the block 33 completely enters the second groove 42 under the action of centrifugal force and conflicts with the top of the second groove 42. The other end of the block 33 is still located in the first groove 32. After the block 33 completely enters the second groove 42, part of it is still located in the first groove 32. The first groove 32 and the second groove 42 are connected by the block 33, so that the driving wheel 3 and the driven wheel 4 are kept in linkage. As long as the rotation speed of the driving wheel 3 exceeds the critical value, part of the block 33 can enter the second groove 42. As the speed increases, the block 33 completely conflicts with the top of the second groove 42 and stops moving forward.

[0039] As shown in the figure, the clamping block 33 is selected from a spherical object, such as a ball. The ball is selected because it is centrally symmetrical and can roll, and under the action of centrifugal force, it is easier to enter the second groove 42. Alternatively, a cylindrical clamping block 33 can be selected, and its surface is as smooth as possible, so that it can also easily enter the second groove 42, that is, a roller structure.

[0040] Example 3

[0041] As shown in the figure, a climbing frame anti-falling device includes a base 1, a top rod 2, a driving wheel 3 and a driven wheel 4; the top rod 2 and the base 1 are rotatably connected by a first rotating shaft 6, and the top rod 2 is divided into a first top rod 21 and a second top rod 22 by the rotating shaft; the driving wheel 3 and the base 1 are rotatably connected by a second rotating shaft 5; the outer circumference of the driving wheel 3 is provided with toothed protrusions 31 at intervals, and the toothed protrusions 31 match the gaps of the guide rails 7; the driven wheel 4 cooperates with the driving wheel 3 to form a blocking mechanism; the driving wheel 3 and the driven wheel 4 are coaxially arranged, and the outer wall of the driven wheel 4 is provided with a pendulum block 41, and the guide rail 7 moves vertically downward to drive the driving wheel 3 to rotate. When the downward movement speed reaches When the critical value is reached, the blocking mechanism takes effect and drives the driven wheel 4 to rotate. The pendulum block 41 contacts the second push rod 22 under the rotation of the driven wheel 4, driving the push rod 2 to rotate, so that the end of the first push rod 21 is stuck in the gap of the guide rail 7; the driving wheel 3 includes a body, on which the tooth-shaped protrusion 31 is provided. Different from the tooth-shaped protrusion 31, a plurality of first grooves 32 are provided along the outer circumference of the body, and a blocking block 33 is provided in the first groove 32. The inner circumference of the driven wheel 4 is provided with a plurality of second grooves 42. When the driving wheel 3 rotates rapidly, the blocking block 33 enters the second groove 42 under the action of centrifugal force, so that the driving wheel 3 drives the driven wheel 4 to rotate;

[0042] The second groove 42 is also provided with a guide portion 43 to facilitate the entry of the clamping block 33 into the second groove 42 during the rotation of the driven wheel 4, thereby achieving the linkage between the driving wheel 3 and the driven wheel 4. Under the action of centrifugal force, the clamping block 33 tends to move in a tangential direction. Therefore, considering the comprehensive force direction of the clamping block 33, an inclined guide groove is provided to facilitate the entry of the clamping block 33 into the second groove 42. The structure of the guide portion 43 can be varied. This application provides a slanted groove, but the structure shown is not limited to that shown. Any structure that facilitates the quick entry of the clamping block 33 into the second groove 42 is acceptable.

[0043] As shown in the figure, similarly, under the action of centrifugal force, considering the direction of force comprehensively, the central axis of the first groove 32 is inclined, so that the block 33 can enter the second groove 42 during rotation, and the inclined direction is matched with the comprehensive force direction.

[0044] Example 4

[0045] When the cam 24 is in the process of being rotated, the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the cam 24 is in the process of being rotated, and the

[0046] The base 1 is U-shaped, and the push rod 2, driving wheel 3 and driven wheel 4 are arranged in the U-shaped cavity. The U-shaped structure is symmetrically designed and has uniform force, which can increase the service life of the device and maintain the stability and reliability of the device operation.

[0047] As shown in the figure, the first grooves 32 are symmetrically provided on both sides of the driving wheel 3 body, and the clamping blocks 33 are arranged in the first grooves 32. Furthermore, there are a number of driven wheels 4 that match the number of the driving wheel 3. The figure shows a technical solution with two driven wheels 4, but one can also be used. When there are two driven wheels 4, the driving wheel 3 has a symmetrical structural design, and the tooth-shaped protrusions 31 are located on the central ring of the driving wheel 3, with the two ends respectively mating with the driven wheels 4.

[0048] As shown in the figure, the weight of the first push rod 21 is greater than the weight of the second push rod 22, so that the push rod 2 can be moved toward the guide rail 7 by its own weight. An eccentric spring 8 is also provided, one end of which is connected to the first push rod 21 and the other end is connected to the base 1. The present application provides a connection position, which is connected to any position of the base in the vertical plane where the second rotating shaft 5 is located. The provision of the eccentric spring 8 can increase the speed at which the push rod 2 moves toward the guide rail 7, shortening the anti-fall blocking time.

[0049] Example 5

[0050] A climbing frame, which adopts the climbing frame anti-fall device described in any one of Examples 1-4, and also includes a technical solution of any combination of technical features disclosed in this application, as well as a technical solution combined with known technologies.

[0051] Principle: As shown in the figure, the guide rail rises vertically upward at a slow and uniform speed, driving the driving wheel to rotate clockwise. Due to their own weight, the blocks all fall to the lowest point of the first groove. At this time, the driven wheel remains stationary. The ejector rod is pressed against the guide rail wall due to its own weight, and the driven wheel also remains stationary. The driven wheel pendulum block contacts the second ejector rod. At this time, the ejector rod is completely separated from the driven and driving wheels, and their movements do not affect each other. At this time, if the guide rail falls, the ejector rod is pressed against the guide rail wall due to its own weight. When it encounters a gap in the guide rail, it is immediately blocked to prevent the guide rail from falling further. An eccentric spring is attached to increase the ejector rod blocking rate. The guide rail descends vertically downward at a slow and uniform speed, driving the driving wheel to rotate counterclockwise. Due to their own weight, the blocks all fall to the lowest point of the first groove. At this time, the driven wheel remains stationary.

[0052] The intersection of the vertical plane of the second rotating shaft and the base forms a vertical line. One end of the spring is connected to a position on the base corresponding to this vertical line. The eccentric spring is always tensioned. Therefore, when the push rod is perpendicular to the base, the eccentric spring only provides a downward force, causing the push rod to deflect, and under the action of the eccentric spring, it accelerates in the direction of deflection. When equipped with an eccentric spring, during descent, the push rod deviates from the guide rail wall due to the spring tension, and no contact is made. The driven wheel also remains stationary, and the pendulum block contacts the end of the second push rod (or is close to it with a small gap). At this point, the push rod is separated from the driven and driving wheels, and their movements do not affect each other.

[0053] The guide rail drops vertically and rapidly, driving the driving wheel to rotate counterclockwise. The driving wheel accelerates and, under the action of centrifugal force, the clamping block moves outward along the first groove, clinging to the inner wall of the second groove, driving the driven wheel to rotate. When the driven wheel pendulum block contacts the top rod at the highest point, the top rod head is not completely in contact with the guide rail. The driven wheel pendulum block can then continue to rotate with the driving wheel. When the top rod is acted upon by the driven wheel pendulum block, it begins to rotate. After rotating to a certain angle, the top rod accelerates counterclockwise rotation under its own weight and / or the force of the eccentric spring. The head of the first top rod is close to the guide rail, the guide rail continues to fall, and the head is stuck in the gap. If there is an eccentric spring, its deflection toward the guide rail will be accelerated.

[0054] The embodiments of the present application also include solutions of any combination of non-conflicting technical features.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A climbing frame anti-fall device, characterized by: The cam is connected to the base via a first rotating shaft, and the cam is divided into a first cam and a second cam by the first rotating shaft; the driving wheel and the base are rotatably connected via a second rotating shaft; toothed protrusions are provided at intervals on the outer circumference of the driving wheel, and the toothed protrusions match the gaps of the guide rails; the driven wheel cooperates with the driving wheel to form a blocking mechanism; the driving wheel and the driven wheel are coaxially arranged, and a pendulum block is provided on the outer wall of the driven wheel, and the guide rail moves vertically downward to drive the driving wheel to rotate. When the downward movement speed reaches a critical value, the blocking mechanism takes effect and drives the driven wheel to rotate, and the pendulum block contacts the second cam under the rotation of the driven wheel, driving the cam to rotate so that the end of the first cam is stuck in the gap of the guide rail; The driving wheel includes a body, on which the tooth-shaped protrusion is provided. Different from the tooth-shaped protrusion, a plurality of first grooves are provided along the outer circumference of the body. A clamping block is provided in the first groove. The inner circumference of the driven wheel is provided with a plurality of second grooves. When the driving wheel rotates rapidly, one end of the clamping block enters the second groove, so that the driving wheel drives the driven wheel to rotate. When one end of the clamping block enters the second groove and contacts the top of the second groove, the other end of the clamping block is still located in the first groove; The card block is selected from a spherical object or a cylindrical object.

2. The climbing frame anti-fall device according to claim 1, characterized in that: The second groove is further provided with a guide portion.

3. The climbing frame anti-fall device according to claim 1, characterized in that: The central axis of the first groove is inclined.

4. The climbing frame anti-fall device according to claim 1, characterized in that: The base is U-shaped, and the push rod, the driving wheel and the driven wheel are arranged in the U-shaped cavity.

5. The climbing frame anti-fall device according to claim 1, characterized in that: The first grooves are symmetrically provided on both sides of the driving wheel body, the clamping blocks are arranged in the first grooves, and the driven wheels are also provided in a number matching the driving wheels.

6. The climbing frame anti-fall device according to claim 1, characterized in that: The weight of the first push rod is greater than that of the second push rod; an eccentric spring is also provided, one end of the eccentric spring is connected to the first push rod, and the other end is connected to the base, and the eccentric spring is in a tensioned state.

7. A climbing frame, characterized by: The climbing frame adopts the climbing frame anti-fall device described in any one of claims 1-6.

Images