A house building project unloading platform
Through innovative design of gantry device and hoisting structure, the problems of poor versatility and complicated installation of existing unloading platforms have been solved, realizing an unloading platform that is easy to install, flexible to adjust and highly safe, and suitable for a variety of building structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG QILU URBAN CONSTR MANAGEMENT
- Filing Date
- 2025-09-26
- Publication Date
- 2026-06-26
Smart Images

Figure CN224413170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a material unloading platform for building construction projects. Background Technology
[0002] In building construction, unloading platforms are critical temporary facilities used to receive building materials (such as steel pipes, formwork, cement, etc.) transported by tower cranes and transfer them to the floors. Currently, the most commonly used unloading platforms are mainly divided into two types:
[0003] Cantilevered unloading platforms: These platforms typically use structural steel (such as I-beams) as the main beam, which extends cantilevered from inside the building to the exterior. The platform is then supported by steel cables diagonally to the upper building structure. This method has several drawbacks: First, its cantilever length is fixed, making it difficult to flexibly adapt to different floor heights or changes in facade structure, resulting in poor versatility. Second, the installation process is cumbersome, requiring extensive welding or anchoring work at high altitudes, which may damage the main structure (such as edge beams).
[0004] Ground-mounted unloading platforms: These platforms are typically erected on the ground or structural slabs, similar to scaffolding. Their disadvantages include the need for construction from the bottom up, consuming a large amount of materials, and the inability to be easily moved and lifted as the building rises, limiting the efficiency of tower cranes. Furthermore, these platforms cannot be used in buildings with atriums or open-plan structures.
[0005] Therefore, there is an urgent need in this field for a discharge platform that is easy to install, highly applicable, safe, and flexibly adjustable to overcome the shortcomings of existing technologies. Utility Model Content
[0006] The purpose of this utility model is to provide a building construction unloading platform that is easy to install, highly applicable, safe, and flexibly adjustable.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A material unloading platform for building construction, comprising:
[0009] A gantry device is installed between an upper floor slab and a lower floor slab;
[0010] A platform device, which is installed via the gantry device, with the working part of the platform device extending outward through a doorway in the building;
[0011] A suspension structure is installed between the gantry device and the platform device. There are two suspension structures 3, located on both sides of the platform device 2.
[0012] Preferably, the gantry device includes a base, an adjustable rod assembly, and a top plate. The base is fixed to the lower floor slab. Two adjustable rod assemblies are arranged in parallel. The fixed end of the adjustable rod assembly is fixed to the base, and the movable end of the adjustable rod assembly is fixed to the top plate. The top plate is fixed to the upper floor slab. The platform device is installed through the base, and the end of the hoisting structure away from the platform device is fixed to the adjustable rod assembly.
[0013] Preferably, the base has two side support plates on its top. The tops of the two side support plates are vertically bent to form a limiting part. Multiple rollers are fitted between the two side support plates, and the multiple rollers have the same support height. The platform device is installed between the two side support plates. The bottom of the platform device is supported by the rollers, and the upper end of the platform device is limited by the limiting part. Under the action of the limiting part, the platform device moves horizontally along the rollers. A fixing member is screwed into the top of the limiting part to fix the platform device. The adjustable rod group is fixed to the base and the side support plates respectively. The bottom plate and the top plate are both fixed to the floor slab with expansion bolts.
[0014] Preferably, the adjustable rod assembly includes a fixed rod and a movable rod. The lower end of the fixed rod is fixed to the base, and the side is fixed to the side support plate. The movable rod is movably sleeved inside the fixed rod. A first fixing member is screwed into the fixed rod, and the first fixing member fixes the movable rod after being screwed in. The top plate is fixed between the top ends of the two movable rods. A connecting lug is fixed to the side of the fixed rod, and the suspension structure is fixed to the connecting lug.
[0015] Preferably, the platform device includes a frame, an inner skeleton, a step, and a enclosure. The inner skeleton is fixed inside the frame, the step is installed inside the frame and supported at the bottom by the inner skeleton, and the enclosure is a three-sided enclosure with the end facing into the building being an open end. The enclosure is fixed to the top of the frame. The frame is assembled between the side support plates on both sides, and rollers provide rolling support at the bottom of the frame. A limiting part is located at the top of the frame. At the bottom of the frame, away from the base, a mounting seat is provided, and a suspension rod is installed through the mounting seat. The lifting structure is installed through the suspension rod.
[0016] Preferably, a baffle is fixed at the bottom of the frame at the indoor end, and the baffle acts on the roller after the frame moves outward.
[0017] Preferably, the suspension structure includes a steel cable and a connecting sleeve. The connecting sleeve is fitted onto the end of the suspension rod, and a bearing is fitted between the connecting sleeve and the suspension rod. A first connecting lug is provided on the outer wall of the connecting sleeve, and the two ends of the steel cable are respectively connected to the connecting lug and the first connecting lug.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] Easy to install and highly stable: Through the innovative "gantry device" design, the device is stably supported between the upper and lower floor slabs using adjustable rod groups, forming a stable rigid support structure. This installation method eliminates the need for complex pre-embedding or welding work on the building's edge beams, resulting in fast installation speed and minimal damage to the main structure. The support stability is far superior to traditional single-sided cantilever structures.
[0020] Highly adaptable and flexible in adjustment: The adjustable rod assembly (fixed rod and movable rod) of this utility model can achieve stepless adjustment of vertical height, flexibly adapting to different floor height requirements and exhibiting extremely high versatility. Simultaneously, the platform device, installed via rollers and side support plates, can easily slide, enabling flexible and precise adjustment of the platform's overhang to meet different construction space needs, thus overcoming the drawbacks of fixed dimensions in traditional cantilever platforms.
[0021] Reasonable stress distribution: The base of the platform is reliably supported by the gantry frame base and roller system, while the front end is reinforced by a suspension structure, forming a "support and tension combination" stress system, which greatly improves the load-bearing capacity and deformation resistance of the platform end.
[0022] Safety Redundancy: The uniquely designed baffles form the last physical line of defense, effectively preventing the platform from sliding outward and falling even in extreme situations (such as fixation failure or cable breakage), greatly enhancing safety.
[0023] The platform device can move easily on the rollers, making it very labor-saving during installation, commissioning, and subsequent fine-tuning of its position. It eliminates the need for complete disassembly and assembly, significantly reducing the labor intensity of workers and improving construction efficiency. Attached Figure Description
[0024] Figure 1 This is a perspective view of the device;
[0025] Figure 2 A perspective view of the device after the pedals and enclosure have been removed;
[0026] Figure 3 This is a magnified view of point A;
[0027] Figure 4 This is a magnified view of point B. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please refer to Figure 1 As shown, this utility model is a material unloading platform for building construction projects, comprising:
[0030] Gantry device 1, wherein the gantry device 1 is installed between the upper floor slab and the lower floor slab;
[0031] Platform device 2, which is installed through the gantry device 1, and the working part of the platform device 2 extends outward through the doorway on the building;
[0032] The suspension structure 3 is installed between the gantry device 1 and the platform device 2.
[0033] In the above technical solution, the gantry device 1 is fixed between the upper floor slab and the lower floor slab to provide stable support.
[0034] Platform device 2 is installed through gantry device 1, and the extension of platform device 2 to the outside of the building is adjustable to meet the construction needs of different building spacing.
[0035] The suspension structure 3 serves as a diagonal bracing element, enhancing the load-bearing capacity at the end of the platform device 2. Two suspension structures 3 are provided, located on either side of the platform device 2.
[0036] See Figure 1 As shown, the gantry device 1 includes a base 11, an adjustable rod assembly 12, and a top plate 13. The base 11 is fixed to the lower floor slab. Two adjustable rod assemblies 12 are arranged in parallel. The fixed end of the adjustable rod assembly 12 is fixed to the base 11, and the movable end of the adjustable rod assembly 12 is fixed to the top plate 13. The top plate 13 is fixed to the upper floor slab. The platform device 2 is installed through the base 11, and the end of the suspension structure 3 away from the platform device 2 is fixed to the adjustable rod assembly 12.
[0037] In the above technical solution, the base 11 is fixed to the lower floor slab with expansion bolts. After the top plate 13 is installed via the adjustable rod assembly 12, its height is adjustable until it presses against the upper floor slab, and then the top plate 13 is fixed with expansion bolts. After fixing, the adjustable rod assembly 12 is then locked.
[0038] The platform device 2 is mounted via the base 11.
[0039] See Figure 1 , Figure 2 and Figure 3 As shown, the base 11 has two side support plates 110 on its top. The tops of the two side support plates 110 are bent vertically to form a limiting part 111. Multiple rollers 112 are fitted between the two side support plates 110, and the multiple rollers 112 have the same support height. The platform device 2 is installed between the two side support plates 110. The bottom of the platform device 2 is supported by the rollers 112, and the upper end of the platform device 2 is limited by the limiting part 111. Under the action of the limiting part 111, the platform device 2 moves horizontally along the rollers 112. A fixing member 113 is screwed into the top of the limiting part 111. After the fixing member 113 is screwed in, the platform device 2 is fixed. The adjustable rod group 12 is fixed to the base 11 and the side support plates 110 respectively.
[0040] The above technical solution provides an installation method for the platform device 2, in which the platform device 2 is guided to slide by the side bracket plates 110 on both sides, and after the platform device 2 is adjusted to a suitable extension, it is fixed by the fixing member 113, which is a screw.
[0041] See Figure 2 As shown, the adjustable rod assembly 12 includes a fixed rod 120 and a movable rod 121. The lower end of the fixed rod 120 is fixed to the base 11, and the side is fixed to the side support plate 110. The movable rod 121 is movably sleeved inside the fixed rod 120. A first fixing member 122 is screwed into the fixed rod 120. After the first fixing member 122 is screwed in, it fixes the movable rod 121. The top plate 13 is fixed between the top ends of the two movable rods 121. A connecting ear 123 is fixed to the side of the fixed rod 120, and the lifting structure 3 is fixed to the connecting ear 123.
[0042] In the above technical solution, the fixing rod 120 is not only fixed to the base 11, but also to the side support plate 110, which increases the firmness of the fixing rod 120. In this embodiment, the fixing method is welding.
[0043] The vertical height of the movable rod 121 is adjustable, allowing the device to meet the fixing needs of different building spacings.
[0044] See Figure 1 , Figure 2 and Figure 4As shown, the platform device 2 includes a frame 21, an inner skeleton 22, a pedal 23, and a enclosure 24. The inner skeleton 22 is fixed inside the frame 21, the pedal 23 is installed inside the frame 21 and its bottom is supported by the inner skeleton 22, and the enclosure 24 is a three-sided enclosure with the end facing the building being the open end. The enclosure 24 is fixed to the top of the frame 21. The enclosure 24 is welded from high-strength steel plates and has a height of not less than 1.2 meters. The frame 21 is assembled between the side support plates 110 on both sides, the roller 112 is rolled and supported at the bottom of the frame 21, and the limiting part 111 is limited to the top of the frame 21. At the bottom of the frame 21, away from the base 11, a mounting seat 25 is provided, and a hanging rod 26 is installed through the mounting seat 25. The lifting structure 3 is installed through the hanging rod 26.
[0045] In the above technical solution, the top of the frame 21 is treated with anti-slip treatment at the position where it contacts the fastener 113, so that after the fastener 113 is screwed down and locked, the frame 21 is prevented from sliding outward.
[0046] In this embodiment, an anti-slip treatment is applied to the top of the frame 21 (the anti-slip treatment method includes setting anti-slip textures or welding anti-slip pads with friction). The fixing requirements of the frame 21 are met by utilizing the downward pressure of the fastener 113 and the static friction between the frame 21 and the roller 112.
[0047] The bottom of the frame 21 is supported by the roller 112, so that the frame 21 can slide easily after the fastener 113 is loosened.
[0048] In the above technical solution, a three-sided enclosure is used, which provides more comprehensive protection, and the materials hoisted by the tower crane fall onto the platform 23.
[0049] See Figure 3 As shown, a baffle 27 is fixed at the bottom of the frame 21 at the indoor end, and the baffle 27 acts on the roller 112 after the frame 21 moves outward.
[0050] The purpose of the baffle 27 is to limit the outward sliding of the frame 21 when the fixing of the fastener 113 fails and the suspension structure 3 breaks, so as to prevent the frame 21 from falling after sliding outward.
[0051] See Figure 2 and Figure 4 As shown, the suspension structure 3 includes a steel cable 31 and a connecting sleeve 32. The connecting sleeve 32 is sleeved on the end of the suspension rod 26. A bearing is fitted between the connecting sleeve 32 and the suspension rod 26. A first connecting ear 33 is provided on the outer wall of the connecting sleeve 32. The two ends of the steel cable 31 are respectively connected to the connecting ear 123 and the first connecting ear 33.
[0052] In the above technical solution, steel cable 31 is used for diagonal tension to help the frame 21 bear the force and improve the load-bearing capacity of the frame 21.
[0053] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A building construction unloading platform, characterized by: include: A gantry device (1) is installed between the upper floor slab and the lower floor slab; Platform device (2), which is installed through the gantry device (1), and the working part of the platform device (2) extends outward through the doorway on the building; The sling structure (3) is installed between the gantry device (1) and the platform device (2).
2. The building construction debris unloading platform of claim 1, wherein, The gantry device (1) includes a base (11), an adjustable rod assembly (12), and a top plate (13). The base (11) is fixed to the floor slab below. Two adjustable rod assemblies (12) are arranged in parallel. The fixed end of the adjustable rod assembly (12) is fixed to the base (11), and the movable end of the adjustable rod assembly (12) is fixed to the top plate (13). The top plate (13) is fixed to the floor slab above. The platform device (2) is installed through the base (11), and the end of the sling structure (3) away from the platform device (2) is fixed to the adjustable rod assembly (12).
3. The building construction debris unloading platform of claim 2, wherein, The base (11) has two side support plates (110) on its top. The top of the two side support plates (110) is bent vertically to form a limiting part (111). Multiple rollers (112) are fitted between the two side support plates (110). The multiple rollers (112) have the same support height. The platform device (2) is installed between the two side support plates (110). The bottom of the platform device (2) is supported by the rollers (112). The upper end of the platform device (2) is limited by the limiting part (111). Under the action of the limiting part (111), the platform device (2) moves horizontally along the rollers (112). A fixing part (113) is screwed into the top of the limiting part (111). After the fixing part (113) is screwed in, the platform device (2) is fixed. The adjustable rod group (12) is fixed to the base (11) and the side support plates (110) respectively.
4. The unloading platform for building construction projects according to claim 3, characterized in that, The adjustable rod assembly (12) includes a fixed rod (120) and a movable rod (121). The lower end of the fixed rod (120) is fixed to the base (11), and the side is fixed to the side support plate (110). The movable rod (121) is movably sleeved inside the fixed rod (120). A first fixing member (122) is screwed into the fixed rod (120). After the first fixing member (122) is screwed in, it fixes the movable rod (121). The top plate (13) is fixed between the top ends of the two movable rods (121). A connecting ear (123) is fixed on the side of the fixed rod (120), and the lifting structure (3) is fixed on the connecting ear (123).
5. The unloading platform for building construction projects according to claim 4, characterized in that, The platform device (2) includes a frame (21), an inner skeleton (22), a pedal (23), and a enclosure (24). The inner skeleton (22) is fixed inside the frame (21), the pedal (23) is installed inside the frame (21), and its bottom is supported by the inner skeleton (22). The enclosure (24) is a three-sided enclosure, with the end of the enclosure (24) facing the building being the open end. The enclosure (24) is fixed to the top of the frame (21). The frame (21) is assembled between the side support plates (110) on both sides. The roller (112) is rolled and supported at the bottom of the frame (21), and the limiting part (111) is limited to the top of the frame (21). At the bottom of the frame (21), away from the base (11), there is a mounting seat (25). A hanging rod (26) is installed through the mounting seat (25), and the lifting structure (3) is installed through the hanging rod (26).
6. The unloading platform for building construction projects according to claim 5, characterized in that, A baffle (27) is fixed at the bottom of the frame (21) at the indoor end. The baffle (27) acts on the roller (112) after the frame (21) moves outward.
7. The unloading platform for building construction projects according to claim 6, characterized in that, The suspension structure (3) includes a steel cable (31) and a connecting sleeve (32). The connecting sleeve (32) is located at the end of the suspension rod (26). A bearing is fitted between the connecting sleeve (32) and the suspension rod (26). A first connecting ear (33) is provided on the outer wall of the connecting sleeve (32). The two ends of the steel cable (31) are respectively connected to the connecting ear (123) and the first connecting ear (33).