Scaffold for construction work

Abstract

The utility model discloses a scaffold for building construction, including base, main platform, translation drive component and extension platform, be equipped with walking mechanism and elevating system on the base, be equipped with a liftable base on the elevating system, the main platform is movably arranged on the base along the transverse, translation drive component is used for urging the main platform moves on the base, extension platform is movably arranged on the main platform along the transverse, when extension platform extends to one side to expand the operation range, can through translation drive component urging main platform to carry out adaptive movement to the opposite direction. This reverse movement can actively compensate and offset the gravity center deviation caused by the extension platform and the upper personnel, equipment extension, so that the gravity center of the whole operation platform is always maintained near the center area of the support base, thereby reducing the overturning moment, reducing the risk of rollover, improving the stability and safety when high-altitude operation.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and in particular to a scaffold for construction. Background Technology

[0002] In high-altitude operations such as building construction, equipment installation, and interior and exterior decoration, scaffolding, as a traditional temporary support structure, provides workers with a necessary working platform. With technological advancements, scissor lifts have gradually become an important choice for scaffolding operations due to their advantages such as smooth lifting, large working range, and convenient mobility.

[0003] In the prior art, such as the scissor lift work platform structure disclosed in Chinese Patent Publication No. CN208200285U, the basic structure consists of a fixed main platform above the scissor lift mechanism, and an extension platform slidingly configured on the main platform. When the actual working range is large, the operator can push the extension platform out from one side of the main platform, thereby effectively increasing the worker's standing and operating space to adapt to a wider range of work needs.

[0004] However, this structure has a significant drawback: when the extension platform extends from the main platform, the center of gravity of the personnel and equipment on the platform shifts towards the extension side. This shift in the center of gravity, especially when the platform is raised to a higher position, generates a large overturning moment, affecting the stability of the entire work platform, posing a risk of tipping over, and threatening operational safety. Utility Model Content

[0005] In view of this, this utility model proposes a scaffold for building construction, with the aim of reducing the risk of tipping over after the extension platform is extended.

[0006] The solution provided by this utility model includes:

[0007] A type of scaffolding for construction includes:

[0008] A base, on which a walking mechanism and a lifting mechanism are provided, and on which a liftable platform is provided;

[0009] The main platform is movably mounted on the base in a lateral direction;

[0010] A translation drive assembly for driving the main platform to move on the base;

[0011] An extension platform is movably mounted on the main platform in a laterally direction.

[0012] As a further optional solution, the extension platform is provided with first guard plates on both sides, and a first guide groove is formed on the outer side of the first guard plate; and a rotatable first guide wheel is provided on the outer side of the first guard plate.

[0013] The main platform is provided with second guard plates on both sides, and the inner side of the second guard plate is provided with a second guide groove, and the inner side of the second guard plate is provided with a rotatable second guide wheel.

[0014] The first guide wheel is slidably engaged with the second guide groove, and the second guide wheel is slidably engaged with the first guide groove.

[0015] As a further optional solution, the outer side of the second guard plate on the main platform is provided with a third guide groove, and the outer side of the third guide groove is provided with a rotatable third guide wheel;

[0016] The base is provided with a third protective plate on both sides, and a fourth guide groove is formed on the inner side of the third protective plate. A rotatable fourth guide wheel is provided on the inner side of the fourth guide groove.

[0017] The third guide wheel is slidably engaged with the fourth guide groove, and the fourth guide wheel is slidably engaged with the third guide groove.

[0018] As a further optional solution, the translation drive assembly includes a transmission rack, a transmission gear, and a motor for driving the transmission gear to rotate;

[0019] The transmission rack is mounted on the second guard plate of the main platform, and the transmission gear and motor are mounted on the base, with the transmission gear meshing with the transmission rack.

[0020] As a further optional solution, the second guard plate of the main platform is provided with a plurality of spaced positioning frames, each positioning frame having a vertically opened insertion hole, and both sides of the positioning frame having guide slopes.

[0021] The first guard plate of the extension platform is provided with a locking mechanism, which includes a lock seat, a pedal, a lock tongue, and an elastic element;

[0022] The lock seat is fixedly mounted on the extension platform, and the lock seat is provided with a first through hole for the lock tongue to pass through;

[0023] The pedal is hinged to the lock seat, and the two ends of the pedal at the hinge position are a foot pedal end and a pry end, respectively. The pry end is provided with a second through hole for the lock tongue to pass through.

[0024] The locking tongue includes a column, the top end of which passes through the second through hole and is fixedly connected to a first limiting plate, the bottom end of which passes through the first through hole, and a second limiting plate is fixedly connected to the column, the second limiting plate being located between the first through hole and the second through hole;

[0025] The elastic element is used to drive the second limiting plate closer to the location of the first perforation.

[0026] As a further optional solution, the lifting mechanism is a scissor-type hydraulic lifting mechanism.

[0027] Compared with the prior art, this application has at least the following advantages:

[0028] When the extension platform extends to one side to expand the working area, the main platform can be adaptively moved in the opposite direction by the translation drive component. This reverse movement can actively compensate for and counteract the center of gravity shift caused by the extension platform and the personnel and equipment above it, so that the center of gravity of the entire working platform is always kept near the central area of ​​the supporting foundation, thereby reducing the overturning moment, reducing the risk of tipping over, and improving the stability and safety of high-altitude operations. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a scaffold used for building construction in one embodiment;

[0030] Figure 2 This is an exploded schematic diagram of a type of scaffolding used in building construction, as shown in one embodiment.

[0031] Figure 3 This is a cross-sectional schematic diagram showing the sliding fit between the extension platform, the main platform, and the base in one embodiment;

[0032] Figure 4 This is a schematic diagram of the extended platform structure in one embodiment;

[0033] Figure 5 This is a schematic diagram of the structure after the main platform and the extension platform move together in one embodiment;

[0034] Figure 6 yes Figure 2 Enlarged view of A in the middle;

[0035] Figure 7 This is a schematic diagram of the cooperation between the locking mechanism and the positioning frame in one embodiment;

[0036] Figure 8 This is a schematic diagram of a conventional scissor lift platform used in a large-area work area;

[0037] Figure 9 This is a schematic diagram of the scaffolding used in building construction for large-area work areas as described in this application;

[0038] In the diagram: 100, the work area;

[0039] 1. Base; 11. Walking mechanism; 12. Lifting mechanism;

[0040] 2. Base; 21. Third protective plate; 22. Fourth guide groove; 23. Fourth guide wheel;

[0041] 3. Main platform; 31. Second guard plate; 32. Second guide groove; 33. Second guide wheel; 34. Third guide groove; 35. Third guide wheel;

[0042] 4. Extension platform; 41. First guard plate; 42. First guide groove; 43. First guide wheel;

[0043] 5. Translation drive assembly; 51. Transmission rack; 52. Transmission gear; 53. Motor;

[0044] 6. Positioning bracket; 61. Insertion hole; 62. Guide slope;

[0045] 7. Locking mechanism; 71. Lock seat; 72. Pedal; 72a. Foot pedal end; 72b. Prying end; 73. Lock tongue; 731. Column; 732. First limiting plate; 733. Second limiting plate; 74. Elastic element. Detailed Implementation

[0046] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0051] refer to Figures 1 to 9 An embodiment of this utility model illustrates a scaffold for building construction, including a base 1, a main platform 3, a translation drive assembly 5, and an extension platform 4. The base 1 is provided with a walking mechanism 11 and a lifting mechanism 12, and the lifting mechanism 12 is provided with a liftable base 2. The main platform 3 is movably mounted on the base 2 in a lateral direction. The translation drive assembly 5 is used to drive the main platform 3 to move on the base 2. The extension platform 4 is movably mounted on the main platform 3 in a lateral direction.

[0052] Specifically, in this embodiment, a base 2 is provided between the main platform 3 and the lifting mechanism 12. The lifting mechanism 12 directly drives the base 2 to rise and fall, and the main platform 3 is movably mounted on the base 2; for example Figure 4 As shown, when the operator pushes the extension platform 4 outward from one side of the main platform 3 to expand the working area, the overall center of gravity of the platform will shift to that side. At this time, as... Figure 5 As shown, by activating the translation drive component 5, the main platform 3 (along with the extension platform 4 on it) can be driven to move in the opposite direction on the base 2. This reverse movement can effectively compensate for the center of gravity shift caused by the extension platform 4 extending, so that the overall center of gravity is always maintained in the stable area within the support range of the base 1, thereby significantly reducing the risk of overturning during high-altitude operations and improving the stability and safety of the equipment.

[0053] Thus, as Figure 8 As shown, in the prior art, traditional scissor lift platforms used in large work areas 100 experience significant center of gravity shift after the extended platform 4 extends out; while the scaffolding used for construction in this embodiment, such as Figure 9 As shown, when used in a large work area 100, the main platform 3 and the extension platform 4 can be moved to obtain a larger standing position to meet the needs of a large work area 100, while also maintaining a stable center of gravity and reducing the risk of tipping over.

[0054] The traveling mechanism 11 and the lifting mechanism 12 can refer to existing technologies. For example, the lifting mechanism 12 can adopt common structures such as scissor-type hydraulic lifting mechanism 12, which will not be described in detail here.

[0055] In some embodiments, such as Figure 2 and Figure 3 As shown, the extension platform 4 has a first guard plate 41 on both sides, and a first guide groove 42 is formed on the outer side of the first guard plate 41; and a rotatable first guide wheel 43 is provided on the outer side of the first guard plate 41; the main platform 3 has a second guard plate 31 on both sides, and a second guide groove 32 is provided on the inner side of the second guard plate 31; and a rotatable second guide wheel 33 is provided on the inner side of the second guard plate 31; wherein, the first guide wheel 43 is slidably engaged with the second guide groove 32, and the second guide wheel 33 is slidably engaged with the first guide groove 42.

[0056] Specifically, the sliding connection between the extension platform 4 and the main platform 3 is achieved through two sets of guide wheel-guide groove pairs: the first guide wheel 43 is embedded and rolls along the second guide groove 32, while the second guide wheel 33 is embedded and rolls along the first guide groove 42. These two sets of connections together form a stable sliding connection. This design ensures that when the extension platform 4 moves, its vertical and horizontal swaying is constrained by the guide groove and guide wheel, thereby improving the stability of the movement process and sharing the bending moment generated by the platform load, making the structure more stable.

[0057] In some embodiments, such as Figure 2 and Figure 3 As shown, the outer side of the second guard plate 31 on the main platform 3 is provided with a third guide groove 34, and the outer side of the third guide groove 34 is provided with a rotatable third guide wheel 35; the two sides of the base 2 are provided with third guard plates 21, the inner side of the third guard plate 21 is formed with a fourth guide groove 22, and the inner side of the fourth guide groove 22 is provided with a rotatable fourth guide wheel 23; wherein, the third guide wheel 35 is slidably engaged with the fourth guide groove 22, and the fourth guide wheel 23 is slidably engaged with the third guide groove 34.

[0058] Specifically, the sliding engagement between the main platform 3 and the base 2 is also achieved through two sets of guide wheel-guide groove pairs: the third guide wheel 35 is embedded and rolls along the fourth guide groove 22, while the fourth guide wheel 23 is embedded and rolls along the third guide groove 34. This structure is consistent in principle with the connection method between the extension platform 4 and the main platform 3 described above, together forming a multi-level sliding system. This structure ensures that the movement of the main platform 3 on the base 2 is equally smooth and effectively transfers the load to the base 2, enhancing the rigidity and load-bearing capacity of the overall structure.

[0059] In some embodiments, reference Figure 2 and Figure 3 The translation drive assembly 5 includes a transmission rack 51, a transmission gear 52, and a motor 53 for driving the transmission gear 52 to rotate; the transmission rack 51 is disposed on the second guard plate 31 of the main platform 3, and the transmission gear 52 and the motor 53 are disposed on the base 2, and the transmission gear 52 meshes with the transmission rack 51.

[0060] Specifically, the transmission gear 52 is driven to rotate by the motor 53. Utilizing the meshing relationship between the transmission gear 52 and the transmission rack 51, the rotational motion is converted into linear motion, thereby driving the main platform 3 to move laterally relative to the base 2. This gear and rack transmission method features smooth transmission and high reliability, providing power for the precise displacement of the main platform 3, and its structure is relatively compact. Furthermore, when the motor 53 is not operating, the transmission gear 52 locks the transmission rack 51, fixing the main platform 3 to the base 2.

[0061] In some embodiments, reference Figure 2 , Figure 6 and Figure 7 The second guard plate 31 of the main platform 3 is provided with a plurality of spaced positioning frames 6. The positioning frames 6 are provided with vertically opened insertion holes 61, and the two sides of the positioning frames 6 are provided with guide slopes 62. The first guard plate 41 of the extension platform 4 is provided with a locking mechanism 7. The locking mechanism 7 includes a lock seat 71, a pedal 72, a lock tongue 73, and an elastic element 74. The lock seat 71 is fixedly mounted on the extension platform 4. The lock seat 71 is provided with a first through hole (not marked in the figure) for the lock tongue 73 to pass through. The pedal 72 is hinged to the lock seat 71. The pedal 72 is located on its hinge. The two ends of the position are a foot pedal end 72a and a pry end 72b, respectively. The pry end 72b is provided with a second through hole (not marked in the figure) for the locking tongue 73 to pass through. The locking tongue 73 includes a column 731. The top end of the column 731 passes through the second through hole and is fixedly connected to a first limiting plate 732. The bottom end of the column 731 passes through the first through hole. A second limiting plate 733 is fixedly connected to the column 731. The second limiting plate 733 is located between the first through hole and the second through hole. The elastic member 74 is used to drive the second limiting plate 733 closer to the position of the first through hole.

[0062] Specifically, the column 731 of the locking tongue 73 passes sequentially through the second through hole of the pry end 72b of the pedal 72 and the first through hole of the lock seat 71. A first limiting plate 732 is fixed to the top of the column 731, and a second limiting plate 733 is fixed to the middle. The elastic element 74 acts on the second limiting plate 733, causing it to always maintain a downward movement trend, so that the bottom end of the locking tongue 73 is inserted into the insertion hole 61 of the positioning frame 6 in a natural state, thereby achieving relative fixation between the main platform 3 and the extension platform 4.

[0063] When the position of the extension platform 4 needs to be adjusted, the operator steps down on the foot pedal 72a of the pedal 72. The pedal 72 rotates around the hinge point, and its prying end 72b tilts upward, pushing the first limiting plate 732 upward, causing the entire locking tongue 73 to move upward, so that its bottom end completely disengages from the insertion hole 61 of the positioning frame 6. At this time, the extension platform 4 can slide freely on the main platform 3.

[0064] During the sliding process of the extension platform 4, even without stepping on the foot pedal 72a, when the bottom end of the column 731 encounters the positioning frame 6, the column 731 can be automatically raised by the guide slope 62 on the positioning frame 6. When the column 731 is above the insertion hole 61, the elastic element 74 causes the column 731 to automatically insert into the insertion hole 61, thereby achieving relative fixation between the main platform 3 and the extension platform 4. In other words, it is only necessary to step on the pedal 72 when unlocking, and automatic locking can be achieved without stepping on the pedal 72 when moving the extension platform 4.

[0065] This locking structure unlocks via foot pedal operation and automatically locks upon release, freeing the operator's hands and providing a simple and reliable locking and unlocking method. The rigid mechanical pin connection ensures the stability of the extension platform 4 in the working position, while multiple spaced positioning frames 6 allow for flexible adjustment of the extension length of the extension platform 4 according to operational needs.

[0066] Of course, in other embodiments, the fixing method between the main platform 3 and the extension platform 4 in the prior art can be directly adopted.

[0067] In summary, this application provides a scaffold for construction. When the extension platform 4 extends to one side to expand the working area, the main platform 3 can be adaptively moved in the opposite direction by the translation drive component 5. This reverse movement can actively compensate for and counteract the center of gravity shift caused by the extension platform 4 and the personnel and equipment above it, so that the center of gravity of the entire working platform is always maintained near the central area of ​​the supporting foundation, thereby reducing the overturning moment, reducing the risk of tipping over, and improving the stability and safety of high-altitude operations.

[0068] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0069] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A type of scaffolding for building construction, characterized in that, include: A base, on which a walking mechanism and a lifting mechanism are provided, and on which a liftable platform is provided; The main platform is movably mounted on the base in a lateral direction; A translation drive assembly for driving the main platform to move on the base; An extension platform is movably mounted on the main platform in a laterally direction.

2. The scaffolding for building construction according to claim 1, characterized in that: The extension platform is provided with first guard plates on both sides, and a first guide groove is formed on the outer side of the first guard plate; and a rotatable first guide wheel is provided on the outer side of the first guard plate. The main platform is provided with second guard plates on both sides, and the inner side of the second guard plate is provided with a second guide groove, and the inner side of the second guard plate is provided with a rotatable second guide wheel. The first guide wheel is slidably engaged with the second guide groove, and the second guide wheel is slidably engaged with the first guide groove.

3. The scaffolding for building construction according to claim 2, characterized in that: The outer side of the second guard plate on the main platform is provided with a third guide groove, and the outer side of the third guide groove is provided with a rotatable third guide wheel. The base is provided with a third protective plate on both sides, and a fourth guide groove is formed on the inner side of the third protective plate. A rotatable fourth guide wheel is provided on the inner side of the fourth guide groove. The third guide wheel is slidably engaged with the fourth guide groove, and the fourth guide wheel is slidably engaged with the third guide groove.

4. The scaffolding for building construction according to claim 3, characterized in that: The translation drive assembly includes a transmission rack, a transmission gear, and a motor for driving the transmission gear to rotate. The transmission rack is mounted on the second guard plate of the main platform, and the transmission gear and motor are mounted on the base, with the transmission gear meshing with the transmission rack.

5. The scaffolding for building construction according to claim 3, characterized in that: The second guard plate of the main platform is provided with a plurality of spaced positioning frames. The positioning frames are provided with vertically opened insertion holes, and the two sides of the positioning frames are provided with guide slopes. The first guard plate of the extension platform is provided with a locking mechanism, which includes a lock seat, a pedal, a lock tongue, and an elastic element; The lock seat is fixedly mounted on the extension platform, and the lock seat is provided with a first through hole for the lock tongue to pass through; The pedal is hinged to the lock seat, and the two ends of the pedal at the hinge position are a foot pedal end and a pry end, respectively. The pry end is provided with a second through hole for the lock tongue to pass through. The locking tongue includes a column, the top end of which passes through the second through hole and is fixedly connected to a first limiting plate, the bottom end of which passes through the first through hole, and a second limiting plate is fixedly connected to the column, the second limiting plate being located between the first through hole and the second through hole; The elastic element is used to drive the second limiting plate closer to the location of the first perforation.

6. The scaffolding for building construction according to claim 1, characterized in that: The lifting mechanism is a scissor-type hydraulic lifting mechanism.

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