Protection device for preventing fan mixed tower hoisting platform from falling

Abstract

The utility model relates to a protection device, belongs to the technical field of building construction safety, and particularly discloses a protection device for preventing a fan mixed tower hoisting platform from falling, which comprises a central vertical shaft, a supporting arm rod and an anti-falling protection mechanism, a plurality of supporting arm rods distributed around the center vertical shaft in a radial mode are fixedly arranged on the periphery of the center vertical shaft, the other ends of the supporting arm rods are connected with an anti-falling protection mechanism, and the anti-falling protection mechanism makes contact with the inner wall of the fan mixing tower and plays a role in falling prevention. The safety protection device is simple in structure, high in practicability, capable of being matched with various fan mixing tower hoisting platforms on the market, capable of conducting safety protection on the installation process of the fan mixing tower, capable of effectively preventing the hoisting platforms from secondary falling and suitable for the installation construction process of the fan mixing tower.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction safety and relates to a protective device, in particular to a protective device for preventing a fan mixing tower hoisting platform from falling. Background Art

[0002] A wind turbine hybrid tower is a wind turbine tower structure constructed from a combination of steel and concrete, with a concrete lower section and a steel upper section. During the construction of the concrete section of the wind turbine hybrid tower, a hoisting platform is typically installed inside the tower. Construction personnel and equipment are positioned on the platform, which rises as the tower is assembled.

[0003] Fall protection devices are used in various construction industries to prevent workers and equipment from falling from heights, effectively protecting people's lives and property. Existing wind turbine tower hoisting platforms are simply suspended via pins connected to the tower's inner wall. If the pins damage or fall off, the platform will plummet to the ground without any secondary protection. Utility Model Content

[0004] In order to solve the above deficiencies in the prior art, the utility model aims to provide a protective device for preventing the wind turbine mixed tower hoisting platform from falling, reducing the falling distance and falling speed of the wind turbine mixed tower hoisting platform, so as to achieve the purpose of preventing the wind turbine mixed tower hoisting platform from falling.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a protective device for preventing the wind turbine mixing tower lifting platform from falling, comprising a central vertical axis, a support arm, and an anti-fall protection mechanism. The upper end of the central vertical axis is fixedly connected to the lifting platform, and a number of support arms radially distributed around the central vertical axis are fixedly arranged around the central vertical axis. The other end of the support arm is connected to the anti-fall protection mechanism, and the anti-fall protection mechanism includes an anti-fall protection head that can rotate in the vertical direction and the rotating shaft is perpendicular to the extension direction of the support arm. The lower end of the anti-fall protection head is fixed with a fixed tip facing the inner wall of the wind turbine mixing tower, and the fixed tip contacts the inner wall of the wind turbine mixing tower to fix the device; the upper end of the anti-fall protection head is fixed with a limit stop body for limiting the rotation range of the anti-fall protection head.

[0006] As a limitation of the present invention: the anti-fall protection head also includes a cylindrical main body, which can rotate in the vertical direction and the rotation axis is perpendicular to the extension direction of the support arm rod, and a limit stop body is fixedly provided on the upward side of the cylindrical main body protruding upward, and a fixed tip is fixedly provided on the downward side of the cylindrical main body protruding downward.

[0007] As a limitation of the present invention: the anti-fall protection mechanism also includes a support, the anti-fall protection head is rotatably connected to one end of the support, and the other end of the support is detachably connected to the support arm.

[0008] As a limitation of the present invention: a vertical notch is provided on one end of the support facing the anti-fall protection head, and the cylindrical body is placed in the notch and is rotatably connected to the support through a fixing pin.

[0009] As a limitation of the present invention: the support arm and the anti-fall protection mechanism are connected by threads.

[0010] As a limitation of the present invention: the central vertical axis and the lifting platform are fixedly connected by welding or bolts.

[0011] As a limitation of the present invention, the number of support arms is 8.

[0012] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0013] The anti-fall protection mechanism of the present invention can play a role of secondary protection for the hoisting platform after the safety measures of the wind turbine mixed tower hoisting platform itself fail, reduce the falling distance and falling speed of the wind turbine mixed tower hoisting platform, and thus prevent the hoisting platform from falling. The anti-fall protection head is provided with a fixed tip and a limit stopper, and the cylindrical body can rotate within a certain angle centered on the fixed pin. When the platform falls, the fixed tip in contact with the inner wall of the wind turbine mixed tower will pierce the concrete surface, playing a role of supporting the wind turbine mixed tower hoisting platform, thereby preventing the hoisting platform from falling; the anti-fall protection mechanism is detachable, which is convenient for installation during construction. The length of the support arm can be adjusted as the inner diameter of the tower changes, meeting the demand for tower diameter change, and can be adapted to various types of wind turbine mixed tower hoisting platforms on the market.

[0014] To sum up, the utility model has a simple structure and strong practicality. It is used in the tower assembly and hoisting process, attached to the bottom of the hoisting platform, and used together with the hoisting platform to effectively reduce the falling distance and falling speed, and prevent workers and operating equipment from falling from heights. It is suitable for the installation and construction of fan mixing towers and high-altitude operations with similar assembly conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of the anti-fall protection mechanism according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the anti-fall protection head according to an embodiment of the present invention.

[0019] In the figure: 1-central vertical axis, 2-support arm, 3-anti-fall protection head, 31-fixing pin, 32-limiting body, 33-fixing tip, 4-support. DETAILED DESCRIPTION

[0020] The preferred embodiment of the present invention is described below with reference to the accompanying drawings. It should be understood that the protective device for preventing the wind turbine tower hoisting platform from falling described herein is a preferred embodiment and is only used to illustrate and explain the present invention and does not constitute a limitation of the present invention.

[0021] The directional terms or positional relationships such as "up", "down", "left" and "right" described in the present invention are based on the directional relationships in the drawings of the present invention specification and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the content protected by the present invention. Example

[0022] This embodiment Figures 1 to 3 The figure shows a protective device for preventing the wind turbine mixing tower hoisting platform from falling, comprising a central vertical axis 1, a support arm 2, and an anti-fall protection mechanism. The protective device is arranged below the hoisting platform and connected to the hoisting platform. Specifically, the upper end of the central vertical axis 1 is fixedly connected to the hoisting platform by welding or bolts. A number of support arms 2 are fixedly arranged around the central vertical axis 1 and distributed radially around it. The support arms 2 are rigidly connected to the central vertical axis 1 and cannot be disassembled. In this embodiment, the number of support arms 2 is set to 8. The other end of the support arm 2 is connected to the anti-fall protection mechanism. When in use, the anti-fall protection mechanism contacts the inner wall of the wind turbine mixing tower to prevent it from falling.

[0023] like Figure 2 、 Figure 3As shown, the anti-fall protection mechanism includes an anti-fall protection head 3, which can rotate in the vertical direction and the rotation axis is perpendicular to the extension direction of the support arm rod. The lower end of the anti-fall protection head 3 is fixedly provided with a fixed tip 33 facing the inner wall of the fan mixing tower, and the fixed tip 33 contacts the inner wall of the fan mixing tower to fix the device; the upper end of the anti-fall protection head 3 is fixedly provided with a limit stop 32 for limiting the rotation range of the anti-fall protection head, and the anti-fall protection head 3 also includes a cylindrical main body with a central axis arranged in the horizontal direction, that is, the cylindrical main body can rotate in the vertical direction and the rotation axis is perpendicular to the extension direction of the support arm rod. The above-mentioned fixed tip 33 and limit stop 32 are both fixed on the cylindrical main body. Specifically, the limit stop 32 is fixedly provided on the upward side of the cylindrical main body, and the fixed tip 33 is fixedly provided on the downward side of the cylindrical main body.

[0024] The anti-fall protection mechanism also includes a support 4, with the anti-fall protection head 3 rotatably connected to one end of the support 4, and the other end of the support 4 detachably connected to the support arm 2. Specifically, a vertical notch is defined at one end of the support 4 where it connects to the anti-fall protection head 3. The cylindrical body is positioned within the notch and is rotatably connected to the support 4 via a fixing pin 31. In other words, the anti-fall protection head 3 can rotate within the notch about the fixing pin 31. In this embodiment, the fixing pins 31 are fixed to the circular bottom surfaces on both sides of the cylindrical body. Of course, other methods can also be used to achieve the rotatable connection between the cylindrical body and the support 4. When a fall occurs, the fixed tip 33 in contact with the inner wall of the mixing tower is subjected to an upward friction force, causing the anti-fall protection head 3 to rotate along with the fixing pin 31, further causing the fixed tip 33 to approach the inner wall of the mixing tower and eventually pierce the concrete surface. At this time, the limit stop body 32 is stuck by the support 4 and cannot continue to rotate with the cylindrical body, thereby limiting the rotation of the anti-fall protection head 3, and supporting the entire device. Under the joint action of the fixed tip 33 and the limit stop body 32, the anti-fall mechanism plays a fixing role to prevent the lifting platform from falling again.

[0025] The other end of the support 4 is detachably connected to the support arm 2 by a threaded connection, which facilitates the installation and disassembly of the protective device during construction. The usable length of the support arm 2 can be changed by thread adjustment, thereby adjusting the radius length of the entire protective device, that is, the distance from the central vertical axis 1 to the inner wall of the wind turbine mixing tower, to meet the situation where the diameter of the mixing tower changes with the change of height.

[0026] The utility model is not only applicable to the installation and construction of fan mixing towers, but also can be used to install the protective device on the aerial work platform for fall protection when aerial work is carried out with walls or other attachable objects around.

[0027] When using this embodiment, first install the central vertical axis 1 and support arm 2 below the wind turbine tower hoisting platform. Then, connect the anti-fall protection mechanism to the front end of the support arm 2 via a butt-jointed thread. Adjust the length so that the fixed tip 33 of the anti-fall protection mechanism contacts the inner wall of the tower. If the hoisting platform falls, the fixed tip 33 pierces the inner wall of the tower and, after rotating, pierces the concrete surface, thus supporting the entire device, stopping the entire device and the wind turbine tower hoisting platform from falling or reducing the speed of falling, thereby protecting the safety of the workers and equipment on the hoisting platform. When use is complete, remove the anti-fall protection mechanism and the device can be moved.

Claims

1. A protective device for preventing a wind turbine tower hoisting platform from falling, characterized by: It includes a central vertical axis, a support arm, and an anti-fall protection mechanism. The upper end of the central vertical axis is fixedly connected to the lifting platform. Several support arms are fixed around the central vertical axis and are radially distributed around it. The other end of the support arm is connected to the anti-fall protection mechanism. The anti-fall protection mechanism includes an anti-fall protection head that can rotate in the vertical direction and the rotating shaft is perpendicular to the extension direction of the support arm. The lower end of the anti-fall protection head is fixed with a fixed tip facing the inner wall of the fan mixing tower. The fixed tip contacts the inner wall of the fan mixing tower to fix the device; the upper end of the anti-fall protection head is fixed with a limit stop body that limits the rotation range of the anti-fall protection head.

2. The protective device for preventing a wind turbine tower hoisting platform from falling according to claim 1 is characterized in that: The anti-fall protection head also includes a cylindrical body, which can rotate in the vertical direction and the rotation axis is perpendicular to the extension direction of the support arm rod. A limit stop body is fixedly provided on the upward side of the cylindrical body and a fixed tip is fixedly provided on the downward side of the cylindrical body.

3. The protective device for preventing a wind turbine tower hoisting platform from falling according to claim 2, characterized in that: The anti-fall protection mechanism also includes a support, the anti-fall protection head is rotatably connected to one end of the support, and the other end of the support is detachably connected to the support arm.

4. The protective device for preventing a wind turbine tower hoisting platform from falling according to claim 3 is characterized in that: A vertical notch is formed on one end of the support facing the anti-fall protection head, and the cylindrical body is placed in the notch and is rotatably connected to the support via a fixing pin.

5. A protective device for preventing a wind turbine tower hoisting platform from falling according to any one of claims 1 to 4, characterized in that: The support arm rod and the anti-fall protection mechanism are connected by threads.

6. The protective device for preventing a wind turbine tower hoisting platform from falling according to claim 5, characterized in that: The central vertical axis and the hoisting platform are fixedly connected by welding or bolts.

7. A protective device for preventing a wind turbine tower hoisting platform from falling according to any one of claims 1 to 4, 5, and 6, characterized in that: The number of the support arms is 8.

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