Attached type lifting scaffold working face cantilever pedal

Abstract

The attached type lifting scaffold working face cantilever pedal comprises a pedal assembly, the pedal assembly comprises an open hoop, the open end of the open hoop is bent upwards in an inclined mode, sleeves are arranged at the tops of the two bends, and guide rods are arranged in the sleeves; a supporting rib is arranged at one end, far away from the bent part, in the open hoop; and a driving assembly for controlling the pedal assembly to stretch out and draw back and fixing the pedal assembly is arranged outside the sleeve. The driving assembly is controlled in a stepping mode to drive the pedal assembly to stretch out, the lifting scaffold can stretch out by a proper length according to the gap between the lifting scaffold and the building, the relative distance between the lifting scaffold and the building can be adapted to the width, the pedal assembly is fixed through the driving assembly, and the pedal assembly can be prevented from retracting; the extending stability of the pedal assembly is guaranteed, and the safety is improved when a worker uses the pedal assembly.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and particularly to a cantilevered footrest for the working surface of an attached lifting scaffold. Background Art

[0002] With the development of today's society, high-rise or super high-rise buildings are springing up in cities. More and more commercial and residential buildings are constructed using aluminum formwork construction technology. When using aluminum formwork construction and cooperating with an attached lifting scaffold, the construction progress of buildings can be improved. However, sometimes there is a certain distance between the lifting scaffold and the building, resulting in a gap between the lifting scaffold and the building. In this case, when workers are constructing, there may be a risk of stepping into the void and falling.

[0003] In the prior art, a pedal for an aerial work platform and a new type of aerial work platform (Patent Application No.: 2021220372159) are disclosed. This patent can be opened by a swinging method, and equipment tools and other items can be placed on it, increasing the working space of the staff and expanding the load-carrying capacity. However, sometimes the distance between the lifting scaffold and the building is wide or narrow. If the distance is narrow, the pedal body may come into contact with the building wall prematurely and cannot be laid flat; if the distance is wide, there will still be a certain gap between the pedal body and the building wall after it is laid flat, failing to achieve the function of safety protection. Summary of the Utility Model

[0004] The technical problem to be solved by this application is to provide a cantilevered footrest for the working surface of an attached lifting scaffold, which can make the extended corresponding length of the footrest according to the width of the gap between the lifting scaffold and the building, playing a role in safety protection.

[0005] To solve the above technical problem, this application adopts the following technical solutions:

[0006] A cantilevered footrest for the working surface of an attached lifting scaffold includes a footrest assembly. The footrest assembly includes an open hoop. The open end of the open hoop is bent obliquely upward, and sleeves are provided at the tops of both bends. A guide rod is provided inside the sleeve; a support rib is provided at one end of the open hoop away from the bend; a driving assembly for controlling the telescoping and fixing of the footrest assembly is provided outside the sleeve. The driving assembly drives the sleeve to move, thereby driving the footrest assembly to extend towards the building wall.

[0007] According to the further expansion of the above solution, the driving assembly includes a first angle iron and a second angle iron. The first angle iron is provided outside the sleeve; a fixing ring is provided inside the sleeve, and the second angle iron is movably provided inside the fixing ring.

[0008] According to the further expansion of the above solution, the horizontal sides of the first angle iron and the second angle iron are both located below the sleeve, and among them, the horizontal side of the first angle iron is located below the horizontal side of the second angle iron.

[0009] Further expanding according to the above solution, a vertical telescopic rod extending upward and downward is fixedly provided in the middle of the horizontal side of the second angle iron, and a through hole is opened on the top surface of the horizontal side of the first angle iron, and the telescopic rod passes downward through the through hole of the horizontal side of the first angle iron.

[0010] Further expanding according to the above solution, a spring is sleeved on the telescopic rod, and the spring is located between the horizontal sides of the first angle iron and the second angle iron.

[0011] Further expanding according to the above solution, a through hole is opened at the bottom of the sleeve, and the top of the telescopic rod extends into the through hole and contacts the guide rod in the sleeve.

[0012] Further expanding according to the above solution, a cross plate is provided on the top surfaces of the two second angle irons.

[0013] Further expanding according to the above solution, it further includes a walkway plate. Round holes for the long sides of the opening hoops to pass through are opened on the side surface of the walkway plate, and two long hollow grooves are opened on the top surface of the walkway plate. The vertical sides of the two second angle irons are respectively arranged in the two long hollow grooves.

[0014] Further expanding according to the above solution, the guide rod is fixed in the walkway plate.

[0015] Compared with the prior art, the present application at least achieves the following beneficial effects: The utility model controls the driving component to drive the pedal component to extend by stepping on it, and can extend an appropriate length according to the gap between the lifting scaffold and the building, and can adapt to the width and narrowness of the relative distance between the lifting scaffold and the building. Moreover, through the fixation of the driving component on the pedal component, the retraction of the pedal component can be prevented, ensuring the stability of the extension of the pedal component, and improving the safety when workers use it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Now, one or more embodiments of the present application will be described only by way of example with reference to the accompanying drawings, in which:

[0017] Figure 1 is a three-dimensional schematic diagram of the connection of multiple cantilever foot pedals according to one embodiment of the present application;

[0018] Figure 2 is a three-dimensional schematic diagram of the pedal component of the cantilever foot pedal of the present application;

[0019] Figure 3 is a three-dimensional schematic diagram of the extended state of the pedal component of the cantilever foot pedal of the present application.

[0020] The reference numerals in the figure are: 1, walkway board; 2, transverse board; 3, open hoop; 31, bend; 32, longitudinal rod; 33, cross bar; 4, first angle iron; 5, guide sleeve; 6, guide rod; 7, second angle iron; 8, fixing ring; 9, spring. Detailed implementation manners

[0021] The present application will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood, however, that the present application can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0022] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application.

[0023] In view of the defect in the prior art that the corresponding extended length of the footrest cannot be made to correspond to the width of the gap between the lifting scaffold and the building. After careful analysis by the inventor, it is found that the main reason for the above problem is that some swinging pedals have fixed sizes and can only match a single distance between the lifting scaffold and the building wall. Of course, there are also some that insert steel bars into the through holes on the side of the lifting scaffold for support. However, this simple support is not safe enough. Secondly, after a long time of use, these supports are prone to tilt obliquely downward, and people standing on them may be unstable and slip. Based on the above analysis, the inventor has made a structural improvement to the pedals on the side of the lifting scaffold.

[0024] As Figure 1 shown, a cantilever footrest for the working surface of an attached lifting scaffold of the present application includes a footrest assembly. The footrest assembly includes an open hoop 3 with a steel bar bend 31. The open end of the open hoop 3 is bent obliquely upward to form a bend 31 with an angle of 45°. A laterally arranged sleeve is welded to the top of each of the two bends 31. A guide rod 6 is provided inside the sleeve, and the sleeve can move along the guide rod 6. A support rib is welded to the end of the open hoop 3 away from the bend 31. The support rib includes a cross bar 33 and a longitudinal rod 32. The longitudinal rod 32 is parallel to the short side of the open hoop 3, and at least two cross bars 33 are welded between the longitudinal rod 32 and the short side of the open hoop 3, so that it is not easy to step on the air when stepping on it. A driving assembly for controlling the telescoping and fixing of the footrest assembly is provided outside the sleeve.

[0025] In order for the driver component to achieve the above functions, such as Figure 2 As shown, the driving assembly includes a first angle iron 4 and a second angle iron 7. The first angle iron 4 is welded to the outside of the sleeve. A rectangular hollow fixing ring 8 is welded to the inside of the sleeve. The second angle iron 7 is arranged inside the fixing ring 8. The vertical side of the second angle iron 7 can move up and down in the fixing ring 8.

[0026] The transverse sides of the first angle iron 4 and the second angle iron 7 are both located below the sleeve, and the transverse sides of the first angle iron 4 and the second angle iron 7 are in opposite directions, wherein the transverse side of the first angle iron 4 is located below the transverse side of the second angle iron 7.

[0027] A telescopic rod is fixedly welded to the middle of the horizontal side of the second angle iron 7 and extends vertically and downwardly (or protrudes from the top and bottom surfaces of the horizontal side of the second angle iron 7 at the same time). A through hole is provided on the top surface of the horizontal side of the first angle iron 4, and the telescopic rod passes downward through the through hole of the horizontal side of the first angle iron 4. A thread is preferably welded to the bottom of the telescopic rod for limiting.

[0028] A spring 9 is sleeved on the telescopic rod, and the spring 9 is located between the transverse side of the first angle iron 4 and the transverse side of the second angle iron 7 .

[0029] A through hole is formed at the bottom of the sleeve, and the top of the telescopic rod extends into the through hole and contacts the guide rod 6 in the sleeve.

[0030] At this point, the driving assembly has realized the function of controlling the extension and retraction of the foot pedal assembly and fixing the foot pedal assembly. The principle is as follows: when the second angle iron 7 is pressed down, the telescopic rod is driven to move downward, and the top of the telescopic rod leaves the through hole at the bottom of the sleeve. During the downward pressing of the second angle iron 7, its horizontal edge will compress the spring 9, and the horizontal edge of the first angle iron 4 will limit the downward movement of the spring 9. The vertical edge of the second angle iron 7 is in the fixing ring 8 on the inner side of the sleeve. When the second angle iron 7 moves, it drives the fixing ring 8 to move, and the fixing ring 8 drives the sleeve and the foot pedal assembly to move; loosen the second angle iron 7, and the horizontal edge of the second angle iron 7 is subjected to the reaction force of the spring 9, driving the second angle iron 7 and the telescopic rod to move upward, and the top of the telescopic rod presses against the outer wall of the guide rod 6 to limit the movement of the guide sleeve 5.

[0031] Because there are two second angle irons 7, in order to allow the two second angle irons 7 to be pressed down at the same time, a horizontal plate 2 is welded on the top surface of the vertical sides of the two second angle irons 7, and a plurality of grooves are provided on the horizontal plate 2. In this way, when the worker needs to extend the cantilevered foot pedal, he only needs to step on the horizontal plate 2 to press down the two second angle irons 7, and then perform a kicking action to extend the horizontal plate 2, the driving assembly, and the foot pedal assembly forward. When there are many cantilevered foot pedals, the worker can extend them without bending over, thereby reducing the labor intensity of the worker.

[0032] The structure and working principle of the cantilevered footrest have been introduced above. The installation position of the cantilevered footrest is on the walkway board 1 of the lifting scaffold work surface. Among them, a round hole for the long side of the opening hoop 3 to pass through is opened on the side of the walkway board 1, so that the opening hoop 3 can telescopically move on the side of the walkway board 1. Two long hollow grooves are opened on the top surface of the walkway board 1, and the vertical sides of the two second angle irons 7 are respectively arranged in the two long hollow grooves, and the guide rod 6 is fixed in the walkway board 1. When the cross plate 2 is pressed down, the two second angle irons 7 move along the long hollow grooves.

[0033] Combined Figures 1-3 In view of this, during use, the worker steps on the cross plate 2 to move the two second angle irons 7 downward. The second angle iron 7 drives the top of the telescopic rod to move out of the through hole at the bottom of the sleeve. At this time, the worker can use his feet to drive the cross plate 2, the driving component and the footrest component to move, so that the footrest component extends from the side of the walkway board 1. After extending a specified distance, release the cross plate 2, and the second angle iron 7 is reset by the reaction force of the spring 9, so that the top of the telescopic rod re-enters the through hole at the bottom of the sleeve, and the telescopic rod presses against the guide rod 6 inside the sleeve, and the footrest component is then limited and cannot move.

[0034] In addition, due to the connection between the footrest component and the sleeve and the guide rod 6, it will not tilt downward even after long-term use.

Claims

1. A cantilevered foot pedal for the working surface of an attached lifting scaffold, characterized in that: It includes a foot pedal assembly, which includes an open hoop, the open end of which is bent obliquely upward, and sleeves are provided at the tops of the two bends, and guide rods are provided inside the sleeves; support ribs are provided inside the open hoop and at one end away from the bend; a driving assembly for controlling the extension and retraction of the foot pedal assembly and fixing the foot pedal assembly is provided outside the sleeve.

2. The foot pedal according to claim 1, characterized in that: The driving assembly comprises a first angle iron and a second angle iron, wherein the first angle iron is arranged on the outer side of the sleeve; a fixing ring is arranged on the inner side of the sleeve, and the second angle iron is movably arranged inside the fixing ring.

3. The foot pedal according to claim 2, characterized in that: The transverse sides of the first angle iron and the second angle iron are both located below the sleeve, wherein the transverse side of the first angle iron is located below the transverse side of the second angle iron.

4. The foot pedal according to claim 3, characterized in that: A vertical telescopic rod extending upward and downward is fixedly provided in the middle of the horizontal side of the second angle iron, a through hole is provided on the top surface of the horizontal side of the first angle iron, and the telescopic rod passes downward through the through hole of the horizontal side of the first angle iron.

5. The foot pedal according to claim 4, characterized in that: A spring is sleeved on the telescopic rod, and the spring is located between the transverse side of the first angle iron and the transverse side of the second angle iron.

6. The foot pedal according to claim 5, characterized in that: A through hole is provided at the bottom of the sleeve, and the top of the telescopic rod extends into the through hole and contacts the guide rod in the sleeve.

7. The foot pedal according to claim 6, characterized in that: A transverse plate is provided on the top surfaces of the two second angle irons.

8. The foot pedal according to any one of claims 2 to 7, characterized in that: It also includes a walkway plate, a circular hole for the long side of the opening hoop to pass through is opened on the side of the walkway plate, two long hollow grooves are opened on the top surface of the walkway plate, and the vertical sides of the two second angle irons are respectively arranged in the two long hollow grooves.

9. The foot pedal according to claim 8, characterized in that: The guide rod is fixed in the walkway plate.

Images