Expandable building exterior lift platform
By installing electric telescopic rods and auxiliary plates on the operating platform, combined with threaded rods and servo motor drives, the problem of poor flexibility of existing construction platforms is solved, achieving efficient expansion and improved stability, adapting to different working environments, and reducing construction difficulty and labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA MCC 2 GRP CO LTD
- Filing Date
- 2022-11-15
- Publication Date
- 2026-05-12
AI Technical Summary
In existing building construction, temporary work platforms or scaffolds lack flexibility and are difficult to adjust in terms of height and platform orientation, resulting in insufficient support capacity and stability, which poses safety hazards, especially in the construction of high-rise buildings.
An expandable external lifting operating platform for buildings was designed. By setting an electric telescopic rod and an auxiliary plate on the operating platform, combined with a threaded rod and a servo motor drive, the platform can be raised, lowered and extended. A guide mechanism is provided to ensure stability, and the auxiliary plate can be slidably extended by inserting rods and limiting rods.
It enables the construction of work surfaces both outside and inside buildings, expanding the construction work area, reducing labor intensity, improving work efficiency, adapting to different work environments, and ensuring construction safety and stability.
Smart Images
Figure CN115680255B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building engineering technology, specifically to an expandable external lifting operating platform for buildings. Background Technology
[0002] During construction, various temporary work platforms or scaffolds are often erected, where workers perform various masonry, decoration, and installation tasks. For large-scale, long-term construction projects, full-span scaffolding is often used, which saves costs and facilitates work in different locations. However, this type of support structure has poor flexibility, and when the height exceeds a certain standard, its support capacity and stability deteriorate due to its own weight. Therefore, in the construction of large high-rise buildings, sliding formwork that can be attached to the outside of the building walls and can climb layer by layer is gradually being adopted, greatly improving structural stability and construction safety.
[0003] Both of the above structures can provide a working surface for construction at a higher position, but for temporary projects, large-area supports have poor flexibility, poor attachment ability, and are not convenient to adjust the height and platform direction at any time. Summary of the Invention
[0004] The purpose of this invention is to provide an expandable external building lifting operation platform that can be used to build a working surface on the outside or inside of a building, which is beneficial for carrying out high-altitude construction operations.
[0005] To achieve the above objectives, the technical solution used in this invention is:
[0006] An expandable external lifting operating platform for buildings includes: a work box, positioning plates, an operating platform, and auxiliary plates. Two sets of fixed platforms are symmetrically arranged on the upper surface of the work box. The operating platform is horizontally positioned above the work box and slides in conjunction with the center of the fixed platforms. An electric telescopic rod is installed on the side of the operating platform. The moving end of the electric telescopic rod horizontally passes through a through hole in the center of the operating platform. The moving end of the electric telescopic rod is located in a storage slot on the surface of the operating platform, and two connecting plates placed horizontally within the storage slot are symmetrically hinged to the moving end of the electric telescopic rod. An auxiliary plate that slides within the storage slot is hinged to the end of each connecting plate. Two positioning plates are also symmetrically arranged on the upper surface of the operating platform. The two positioning plates are vertically fixed. A baffle is slidably installed on one side of the positioning plate facing the fixed platform. A limiting plate is installed between the opposite sides of the two positioning plates, and both ends of the limiting plate are slidably connected to the sides of the positioning plates. A rod is vertically fixed on the lower surface of the baffle, and a limiting rod is vertically fixed on the lower surface of the limiting plate. Both the rod and the limiting rod vertically pass through the storage slot of the operating platform.
[0007] Preferably, a servo dual-axis motor is provided on the surface of the work box, and two sets of threaded rods are provided on the surface of the work box through bearings. The two sets of threaded rods are located inside the two fixed platforms respectively. The two sets of threaded rods are symmetrically distributed about the center of the servo dual-axis motor. The lower ends of the two sets of threaded rods are connected to the output end of the servo dual-axis motor through bevel gear pairs. Threaded sleeves that are threadedly connected to the middle of the two sets of threaded rods are installed. The threaded sleeves are fixedly connected to the operating platform through connecting seats.
[0008] Preferably, a storage slot is provided in the middle of one side of the operating platform. The storage slot has a square groove structure and three sides are open. The moving end of the electric telescopic rod passes through the operating platform and is located in the storage slot. Two sets of connecting plates are provided, and the two sets of connecting plates are symmetrically distributed about the center of the electric telescopic rod. Two auxiliary plates with a square plate structure are horizontally slidably arranged in the storage slot. The opposite sides of the two sets of auxiliary plates are connected by horizontally arranged springs.
[0009] Preferably, both positioning plates have vertically protruding U-shaped grooves on their opposite sides and on their opposite sides to the fixed platform. One end of the baffle and both ends of the limiting plate are protruding U-shaped plates. The protruding U-shaped plate at one end of the baffle slides in conjunction with the protruding U-shaped grooves on the opposite sides of the positioning plates and the fixed platform. The protruding U-shaped plates at both ends of the limiting plate slide in conjunction with the protruding U-shaped grooves on the opposite sides of the two positioning plates.
[0010] Preferably, the baffle has a square plate structure, and the lower surface of the baffle is integrally formed with a rod. The rod has a circular cylindrical structure, and there are two sets of rods, which are symmetrically distributed about the center of the baffle.
[0011] Preferably, the surface of the operating platform has two insertion holes, namely, insertion hole one and insertion hole two, which pass through the storage groove. The insertion rod has the same diameter as insertion hole one, and the axis of the insertion rod at the corresponding position coincides with that of insertion hole one. A tension spring is provided between the baffle and the surface of the operating platform, and the tension spring is sleeved on the outside of the insertion rod. A tension spring is also provided between the limiting plate and the surface of the operating platform, and the tension spring is sleeved on the outside of the limiting rod. The number of limiting rods is the same as the number of insertion holes two, and the diameter of the limiting rods is the same as that of insertion holes two. The axis of each limiting rod coincides with the axis of the insertion hole two at the corresponding position.
[0012] Preferably, a slide bar is vertically provided on one side of the fixed platform, and a top support plate is fixedly provided on the lower surface of the operating platform. The end of the top support plate is slidably engaged with the slide bar through a sliding sleeve.
[0013] The technical effects of this invention include:
[0014] This invention enables the construction of working surfaces on the exterior or interior of buildings, which is beneficial for carrying out high-altitude construction operations and can also effectively expand the construction working area.
[0015] The scalable external lifting operating platform proposed in this invention features a fixed work box at the bottom, a lifting drive device installed inside the work box, and fixed platforms on both sides above the work box that provide support and guidance. Lifting is driven by threaded rods installed inside the fixed platforms. To ensure the stability of the lifting operation platform, a guide mechanism is installed between the operating platform and the fixed platforms.
[0016] To facilitate the expansion of the operating platform, a rectangular prism-shaped receiving slot with three openings is provided at the center of the front end of the operating platform. An electric telescopic rod is horizontally fixed to the rear side of the operating platform. The push rod of the electric telescopic rod passes through the operating platform, ensuring that its moving end can move horizontally within the receiving slot. Simultaneously, two auxiliary plates are symmetrically slidably installed within the receiving slot to expand the surface area of the operating platform. The auxiliary plates can move forward and backward and left and right, enabling the operating platform to expand forward or to the sides. To simplify the structure, the invention uses a set of electric telescopic rods to drive the two auxiliary plates. First, two connecting plates are symmetrically hinged at the moving end of the electric telescopic rod, and the ends of the connecting plates are respectively connected to the auxiliary plates on the corresponding sides. The side hinge is designed so that the axis of the hinge between the connecting plate and the moving end of the electric telescopic rod is parallel to the axis of the hinge between the connecting plate and the side of the auxiliary plate, and perpendicular to the upper surface of the operating platform. Simultaneously, two insertion holes, one through the operating platform and the other through the opening of the storage slot, are respectively provided on the side. An insertion rod is provided with the first insertion hole, and a limiting rod is provided with the second insertion hole. The insertion rod, the limiting rod, and the inner wall of the storage slot form a sliding channel for the auxiliary plate. By pulling the insertion rod or the limiting rod upwards, an expansion channel for the auxiliary plate can be formed to the left, right, or forward, expanding the top area of the operating platform within a certain range. This adapts to different working environments, eliminates the need for frequent platform movement, reduces labor intensity, and improves work efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the present invention;
[0018] Figure 2 This is a partial cross-sectional view of the structure of the present invention;
[0019] Figure 3 This is a schematic diagram of the operating platform structure of the present invention;
[0020] Figure 4 This is a bottom view of the structure of the present invention;
[0021] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.
[0022] In the diagram: 1. Work box; 2. Servo dual-axis motor; 3. Threaded rod; 4. Fixed platform; 5. Operating platform; 6. Storage slot; 7. Electric telescopic rod; 8. Connecting plate; 9. Auxiliary plate; 10. Positioning plate; 11. Baffle; 12. Insert rod; 13. Limiting plate; 14. Limiting rod; 15. Insertion hole one; 16. Insertion hole two; 17. Slide rod; 18. Top support plate; 19. Spring. Detailed Implementation
[0023] The following description fully illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.
[0024] Example 1
[0025] Please see Figures 1-5 An expandable external lifting operating platform 5 for buildings includes: a work box 1, a fixed platform 4, and an operating platform 5. A notch on the operating platform 5 fits onto the outside of the fixed platform 4. The fixed platform 4 is a vertically arranged truss structure, with threaded rods 3 vertically mounted in its middle. The lower ends of the two threaded rods 3 are connected to the power output end of a servo dual-axis motor 2 inside the work box 1 via a bevel gear pair. Simultaneously, the notch on the operating platform 5 engages with the threaded rods 3 via a horizontally arranged connecting seat and threaded sleeve. The dual-axis servo motor drives the two threaded rods 3 to rotate. By controlling the rotation direction of the threaded rods 3, the operating platform 5 can be adjusted. To ensure the stability of the lifting of the operating platform 5, a sliding rod 17 is provided on one side of the fixed platform 4, and a top support plate 18 is provided at the bottom of the operating platform 5. The end of the top support plate 18 cooperates with the sliding rod 17 through a sliding sleeve to play a guiding role. The above structure can realize the basic function of the lifting operating platform 5. However, in actual operation, in order to ensure the stability of the operating platform 5, the work box 1 often needs to be fixed under the building. The standing position of the staff is limited by the top surface area of the operating platform 5 and needs to be moved frequently. Therefore, the present invention also provides an extension mechanism in conjunction with the operating platform 5.
[0026] A rectangular storage slot 6 is provided at the center of the front end of the operating platform 5, and an electric telescopic rod 7 is horizontally fixed at the rear side of the operating platform 5. The push rod of the electric telescopic rod 7 passes through the operating platform 5 and ensures that its moving end can move horizontally within the storage slot 6. At the same time, two auxiliary plates 9 are symmetrically slidably installed in the storage slot 6 to expand the surface area of the operating platform 5. The auxiliary plates 9 can move forward and backward and left and right, enabling the operating platform 5 to expand forward or to both sides. To simplify the structure, the invention uses one set of electric telescopic rod 7 to drive the two auxiliary plates 9. First, two connecting plates 8 are symmetrically hinged at the moving end of the electric telescopic rod 7. The ends of the connecting plates 8 are respectively hinged to the sides of the corresponding auxiliary plates 9. The connecting plates 8 and the electric telescopic rod 7 are connected to each other. The axis of the hinge shaft at the moving end and the axis of the connecting plate 8 are parallel to the axis of the hinge shaft on the side of the auxiliary plate 9 and perpendicular to the upper surface of the operating platform 5. At the same time, two insertion holes, 15 and 16, penetrating the operating platform 5 are respectively provided on the side of the opening of the storage slot 6. An insertion rod 12 is provided with the insertion hole 15 and a limiting rod 14 is provided with the insertion hole 16. The insertion rod 12, the limiting rod 14 and the inner wall of the storage slot 6 form a sliding channel for the auxiliary plate 9. By pulling the insertion rod 12 or the limiting rod 14 upward, the auxiliary plate 9 can be extended to the left or right or forward. This can expand the top area of the operating platform 5 within a certain range, adapt to different working environments, eliminate the need to frequently move the operating platform 5, reduce labor intensity and improve work efficiency.
[0027] Example 2
[0028] When it is necessary to expand the operating platform 5 to the left and right, firstly, manually lift the two side baffles 11 upwards. At this time, the insertion rod 12 disengages from the insertion hole, and the storage groove 6 forms a channel that runs through the left and right sides. Start the electric push rod, and the moving end of the electric push rod moves forward. The two connecting plates 8 hinged at its end move forward at the same time. The auxiliary plate 9 hinged to the end of the connecting plate 8 is restricted by the limiting rod 14 and can only move to the left or right respectively. The two auxiliary plates 9 extend out of the storage groove 6 to the left or right, completing the expansion of the operating platform 5 in the left and right directions. After the construction is completed, retract the electric telescopic rod 7. Under the tension of the connecting plate 8 and the action of the spring 19, the two auxiliary plates 9 retract to their original positions. After retraction, the baffle 11 moves downwards under the action of the tension spring, and the insertion rod 12 is inserted into the corresponding insertion hole 15, forming a closed space again.
[0029] Example 3
[0030] When it is necessary to extend the operating platform 5 forward, firstly, manually lift the limiting plate 13 upward. The limiting plate 13 drives the limiting rod 14 to disengage from the second insertion hole 16. At this time, the front end of the storage slot 6 is in an open state. Start the electric telescopic rod 7. The moving end of the electric telescopic rod 7 moves forward and pushes the two auxiliary plates 9 to move through the connecting plate 8. Since the auxiliary plates 9 are restricted by the two side insertion rods 12, they can only move forward, realizing the forward extension of the operating platform 5. After use, retract the electric telescopic rod 7, and the auxiliary plates 9 return to the storage slot 6. The limiting plate 13 moves downward under the action of the tension spring, and the limiting rod 14 is inserted into the second insertion hole 16.
[0031] To ensure smooth sliding of the auxiliary plate 9 within the storage groove 6, the thickness of the auxiliary plate 9 in this invention is the same as the height of the storage groove 6, allowing it to slide within the storage groove 6. However, the existing gaps must ensure that the auxiliary plate 9 does not wobble up and down within the storage groove 6. On the other hand, the insertion rod 12 and the limiting rod 14 in this invention both serve to limit and guide during use. Therefore, the middle of both the insertion rod 12 and the limiting rod 14 are set as roller-shaped structures. When the auxiliary plate 9 contacts them, the outer side of the roller-shaped structure and the side of the auxiliary plate 9 are in a rolling state, avoiding simple sliding friction, reducing resistance, and extending the service life of the insertion rod 12 and the limiting rod 14.
[0032] On the other hand, in order to simplify the structure and reduce maintenance costs, the baffle 11 and the limiting rod 14 in this invention adopt a relatively simple sliding structure with the positioning plate 10. The two positioning plates 10 have vertically convex grooves on their opposite sides and opposite sides of the fixed platform 4. One end of the baffle 11 and both ends of the limiting plate 13 are convex plates. The convex plate at one end of the baffle 11 slides in cooperation with the convex grooves on the opposite sides of the positioning plate 10 and the fixed platform 4. The convex plates at both ends of the limiting plate 13 slide in cooperation with the convex grooves on the opposite sides of the two positioning plates 10. The baffle 11 and the limiting plate 13 are respectively provided with tension springs on the surface of the operating platform 5. The tension springs are respectively fitted on the outside of the insertion rod 12 and the limiting rod 14. During operation, it is only necessary to manually lift the baffle 11 or the limiting plate 13 upwards. After the operation is completed, the baffle 11 and the limiting rod 14 move downwards under the action of the corresponding tension springs, and the insertion rod 12 and the limiting rod 14 are respectively inserted into the corresponding insertion holes.
[0033] For safety reasons, the width of the auxiliary plate 9 extending forward or to the left or right of the storage slot 6 in this invention shall not exceed two-thirds of the length or width of the auxiliary plate 9 itself. In addition, during use, the work box 1 must always be fixedly connected to the ground. At the same time, a support rod can be set in conjunction with the auxiliary plate 9 to support the outer end of the auxiliary plate 9 when the auxiliary plate 9 extends outward into the storage slot 6.
[0034] In summary, this invention is a further improvement on existing small lifting platforms. It adds an extension mechanism to the existing lifting structure. The extension mechanism can be operated using only an electric telescopic rod and can extend the operating platform to the left, right or forward. The structure is simple and easy to install and maintain. While ensuring safety and stability, it expands the functionality, reduces the frequency of movement, and facilitates operations on the outside of irregularly shaped buildings.
[0035] The terminology used in this invention is descriptive and exemplary, not restrictive. Since this invention can be embodied in many forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.
Claims
1. An expandable external building lifting operation platform, characterized in that, include: The system includes a work box, positioning plates, an operating platform, and auxiliary plates. Two sets of fixed platforms are symmetrically arranged on the upper surface of the work box. The operating platform is horizontally positioned above the work box and slides in conjunction with the center of the fixed platforms. An electric telescopic rod is installed on the side of the operating platform. The moving end of the electric telescopic rod horizontally passes through a through-hole in the center of the operating platform. The moving end of the electric telescopic rod is located in a storage slot on the surface of the operating platform, and two connecting plates placed horizontally within the storage slot are symmetrically hinged to the moving end of the electric telescopic rod. An auxiliary plate, slidingly installed within the storage slot, is hinged to the end of each connecting plate. Positioning plates are symmetrically arranged on the upper surface of the operating platform. Two positioning plates are vertically fixed, with their sides facing each other. A limit plate is set between the two ends of the limit plate and the side of the positioning plate respectively. A baffle is slidably set on the side of the positioning plate facing the fixed platform, and a rod is vertically fixed on the lower surface of the baffle. A limit rod is vertically fixed on the lower surface of the limit plate. Both the rod and the limit rod vertically pass through the storage slot of the operating platform. A storage slot is opened in the middle of one side of the operating platform. The storage slot has a square groove structure. The moving end of the electric telescopic rod passes through the operating platform and is located in the storage slot. Two sets of connecting plates are symmetrically distributed about the center of the electric telescopic rod. Two auxiliary plates with a square plate structure are horizontally slidably set in the storage slot. The opposite sides of the two sets of auxiliary plates are connected by a horizontally set spring.
2. The expandable external building lifting operation platform according to claim 1, characterized in that: The surface of the work box is equipped with a servo dual-axis motor. The surface of the work box is equipped with two sets of threaded rods through bearings. The two sets of threaded rods are located inside the two fixed platforms respectively. The two sets of threaded rods are symmetrically distributed about the center of the servo dual-axis motor. The lower ends of the two sets of threaded rods are connected to the output end of the servo dual-axis motor through bevel gear pairs. Threaded sleeves with threaded connections are installed in the middle of the two sets of threaded rods. The sliding sleeves are fixedly connected to the operating platform through connecting seats.
3. The scalable external building lifting operation platform according to claim 1, characterized in that: The two positioning plates have vertically protruding U-shaped grooves on their opposite sides and on their opposite sides to the fixed platform. One end of the baffle and both ends of the limiting plate are U-shaped plates. The U-shaped plate at one end of the baffle slides in conjunction with the U-shaped grooves on the opposite sides of the positioning plates and the fixed platform. The U-shaped plates at both ends of the limiting plate slide in conjunction with the U-shaped grooves on the opposite sides of the two positioning plates.
4. The expandable external building lifting operation platform according to claim 3, characterized in that: The baffle has a square plate structure, and the lower surface of the baffle is integrally formed with a rod. The rod has a circular cylindrical structure, and there are two sets of rods. The two sets of rods are symmetrically distributed about the center of the baffle.
5. The expandable external building lifting operation platform according to claim 4, characterized in that: The surface of the operating platform has two insertion holes, namely, Insert Hole 1 and Insert Hole 2, which pass through the storage slot. The insertion rod has the same diameter as Insert Hole 1, and the axis of the insertion rod at the corresponding position coincides with that of Insert Hole 1. A tension spring is provided between the baffle and the surface of the operating platform, and the tension spring is sleeved on the outside of the insertion rod. A tension spring is also provided between the limiting plate and the surface of the operating platform, and the tension spring is sleeved on the outside of the limiting rod. The number of limiting rods is the same as the number of Insert Hole 2, and the diameter of the limiting rod is the same as that of Insert Hole 2. The axis of each limiting rod coincides with the axis of Insert Hole 2 at the corresponding position.
6. The expandable external building lifting operation platform according to claim 5, characterized in that: A sliding rod is vertically installed on one side of the fixed platform, and a top support plate is fixed on the lower surface of the operating platform. The end of the top support plate is slidably engaged with the sliding rod through a sliding sleeve.