Assembly type overhanging discharging platform

Abstract

An assembly type overhanging discharging platform relates to the technical field of building machinery and comprises a platform body and arm rods connected to the two sides of one end of the platform body, the platform body comprises a bottom plate, first C-shaped steel is welded to the two sides of the bottom plate respectively, the front ends of the first C-shaped steel are welded to the rear ends of the corresponding arm rods respectively, and second C-shaped steel is welded to the rear end of the bottom plate. The two ends of the second C-shaped steel and the corresponding rear end of the first C-shaped steel form a limiting groove which is of a right-angle structure in an overlook mode, the first C-shaped steel and the second C-shaped steel are detachably and fixedly connected with a side plate welding piece and a rear plate welding piece respectively, the two arm rods are further connected with a movable balance weight beam, and the movable balance weight beam is detachably and fixedly connected with the arm rods. According to the novel unloading platform, the transportation cost and the hoisting cost of the unloading platform can be effectively reduced, the transportation efficiency is improved, the interlayer movement difficulty is reduced, meanwhile, the construction risk can be reduced by arranging the movable balance weight beam, and the balance weight effect is achieved when the platform is fixed and hoisted.

Description

Technical Field

[0001] This invention relates to the field of construction machinery technology, specifically to a prefabricated cantilevered unloading platform. Background Technology

[0002] Unloading platforms are temporary workbenches and frames commonly erected on construction sites, primarily for material handling. Depending on the application and requirements, unloading platforms can be categorized into mobile, ground-mounted, and cantilevered types. Among these, the steel cantilevered unloading platform is the most common in engineering construction.

[0003] Existing cantilevered unloading platforms have the following problems:

[0004] (1) The platform is welded as a whole, which is large in size and inconvenient to transport. The transport vehicle can only transport two sets of platforms at a time, which is not only inefficient, but also increases the transportation cost of the project.

[0005] (2) When the cantilever unloading platform moves between floors, it requires the use of large lifting equipment, which is inconvenient to operate and has high economic costs.

[0006] (3) Due to the irregular structure of the cantilever unloading platform, the center of gravity is easily unbalanced during lifting, which poses certain safety risks.

[0007] (4) The boom of the cantilevered unloading platform needs to be fixed to the top slab of the building structure using U-shaped steel bars (e.g., Figure 2 As shown, due to the large weight of the platform body and the need to support building materials, the connection strength of the U-shaped steel bars is required to be high, which poses certain safety hazards. Utility Model Content

[0008] This invention discloses a prefabricated cantilevered unloading platform, the purpose of which is to solve the problems described in (1)-(4) of the prior art.

[0009] To achieve the above objectives, the technical solution of this invention is as follows:

[0010] A prefabricated cantilevered unloading platform includes a platform body and booms connected to both sides of one end of the platform body. The platform body includes a base plate, and first C-shaped steel is welded to both sides of the base plate. The front ends of the first C-shaped steel are welded to the rear ends of the corresponding booms. Second C-shaped steel is welded to the rear ends of the base plate. The two ends of the second C-shaped steel and the rear ends of the corresponding first C-shaped steel form a limiting groove with a right angle structure when viewed from above. Side plate welded parts and rear plate welded parts are detachably and fixedly connected to the first C-shaped steel and the second C-shaped steel, respectively. Movable counterweight beams are also connected to the two booms, and the movable counterweight beams are detachably and fixedly connected to the booms.

[0011] Preferably, the open ends of the first C-shaped steel and the second C-shaped steel face upwards, and a plurality of intersecting first reinforcing beams are welded to the lower surface of the base plate.

[0012] Preferably, the side plate welded component includes a first rectangular steel pipe arranged longitudinally, a second rectangular steel pipe welded to the bottom front end of the first rectangular steel pipe in the front-rear direction, a side plate welded between the upper end of the second rectangular steel pipe and the front end of the first rectangular steel pipe, the second rectangular steel pipe being inserted into a first C-shaped steel, and the side plate passing through the upper opening of the first C-shaped steel and extending upward.

[0013] Preferably, the cross-sectional dimensions of the first rectangular steel pipe match the dimensions of the limiting groove, the outer wall of the first C-shaped steel is provided with a plurality of first through holes, the second rectangular steel pipe opposite to the first through holes passes through and is welded with a first sleeve having internal threads, and the first C-shaped steel and the second rectangular steel pipe are fixedly connected by a first positioning bolt passing through the first through hole and screwed to the first sleeve.

[0014] Preferably, the back plate welded component includes a third rectangular steel pipe and a back plate welded to the top of the third rectangular steel pipe. The third rectangular steel pipe is located inside the second C-shaped steel. The back plate passes through the upper opening of the second C-shaped steel and extends upward. The outer surfaces of the two first rectangular steel pipes are clearance-fitted with the two ends of the third rectangular steel pipe.

[0015] Preferably, the outer wall of the second C-shaped steel is provided with one or more second through holes, and a third rectangular steel pipe opposite to the second through hole passes through and is welded with a second sleeve with internal threads. The second C-shaped steel and the third rectangular steel pipe are fixedly connected by a second positioning bolt that passes through the second through hole and is screwed to the second sleeve.

[0016] Preferably, the rear plate has an inverted trapezoidal relief groove at its top, and both the side plate and the rear plate have several intersecting second reinforcing beams. A frame is welded to the outer periphery of the rear plate and the side plate.

[0017] Preferably, the boom is an I-beam structure, and the movable counterweight beam includes a counterweight beam body spanning the top of the two booms. A C-shaped frame is welded to the bottom end of the counterweight beam body. The bottom end of the C-shaped frame is bent inward and enters between the upper and lower flanges of the I-beam structure and is in clearance fit with the outer surface of the web of the I-beam structure. The C-shaped frame is detachably fixed to the boom by a third positioning bolt.

[0018] Preferably, the C-shaped frame has a through threaded hole on its side wall, and the C-shaped frame is fixedly connected to the web plate by a third positioning bolt that is screwed into the threaded hole.

[0019] Preferably, the web plate is also provided with a plurality of connecting holes evenly distributed along its length, and the third positioning bolt passes through the threaded hole and is inserted into the connecting hole.

[0020] The beneficial effects of this novel prefabricated cantilevered unloading platform are as follows:

[0021] This new type of platform can effectively reduce the transportation and lifting costs of the unloading platform, improve transportation efficiency, and reduce the difficulty of moving between layers. At the same time, by setting a movable counterweight beam, it can also reduce construction risks and play a counterweight role when fixing and lifting the platform. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this invention, the accompanying drawings used in the embodiments are briefly described below, which constitute a part of the specification and are used together with the embodiments of this invention to explain this invention, but do not constitute a limitation on this invention.

[0023] Figure 1 This is a top view schematic diagram of the structure of this novel invention;

[0024] Figure 2 This is a side view of the structure of the new invention when it is connected to the roof slab of a building.

[0025] Figure 3 This is a side view structural diagram of the new type of side plate welded component.

[0026] Figure 4 This is a rear view structural diagram of the new type of rear plate welded component and its cooperation with the first rectangular steel pipe.

[0027] Figure 5 This is a front view structural schematic diagram of the new side plate welded component.

[0028] Figure 6 This is a front view structural schematic diagram of the new type of movable counterweight beam.

[0029] 1. First C-shaped steel; 2. Base plate; 3. Second C-shaped steel; 4. Boom; 5. Movable counterweight beam; 51. Counterweight beam body; 52. C-shaped frame; 6. Third positioning bolt; 7. First positioning bolt; 8. First rectangular steel pipe; 9. Side plate; 91. Frame; 92. Longitudinal beam; 93. Crossbeam; 10. Rear plate; 11. Second positioning bolt; 12. First reinforcing beam; 13. Connecting hole; 14. Top plate; 15. U-shaped steel bar; 16. Second rectangular steel pipe; 17. First sleeve; 18. Third rectangular steel pipe; 19. Relief groove. Detailed Implementation

[0030] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0031] The following embodiments can be understood as explaining a partial structure of the present invention individually, or as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0032] In this embodiment, a prefabricated cantilevered unloading platform, such as... Figure 1-6 As shown, the platform includes a main body and booms 4 connected to both sides of one end of the main body. The main body includes a base plate 2. First C-shaped steel 1 is welded to both sides of the base plate 2. The front end of the first C-shaped steel 1 is welded to the rear end of the corresponding boom 4. Second C-shaped steel 3 is welded to the rear end of the base plate 2. The two ends of the second C-shaped steel 3 form a limiting groove (not marked in the figure) with the rear end of the corresponding first C-shaped steel 1 at a right angle when viewed from above. Side plate welded parts and rear plate welded parts are detachably and fixedly connected to the first C-shaped steel 1 and the second C-shaped steel 3, respectively. Movable counterweight beams 5 are also connected to the two booms 4. The movable counterweight beams 5 are detachably and fixedly connected to the booms 4.

[0033] In this embodiment, as Figure 1 As shown, the open ends of the first C-shaped steel 1 and the second C-shaped steel 3 face upwards, and several intersecting first reinforcing beams 12 are welded to the lower surface of the bottom plate 2.

[0034] In this embodiment, as Figure 1-3 As shown in Figure 5, the side plate welded component includes a first rectangular steel pipe 8 arranged longitudinally, a second rectangular steel pipe 16 welded to the bottom front end of the first rectangular steel pipe 8 in the front-back direction, a side plate 9 welded between the upper end of the second rectangular steel pipe 16 and the front end of the first rectangular steel pipe 8, the second rectangular steel pipe 16 being inserted into the first C-shaped steel 1, and the side plate 9 passing through the upper opening of the first C-shaped steel 1 and extending upward.

[0035] In this embodiment, as Figure 1-3 As shown in Figure 5, the cross-sectional dimensions of the first rectangular steel pipe 8 match the dimensions of the limiting groove. The outer wall of the first C-shaped steel 1 is provided with multiple first through holes (not marked in the figure). The second rectangular steel pipe 16, which is opposite to the first through hole, passes through and is welded with a first sleeve 17 with internal threads. The first C-shaped steel 1 and the second rectangular steel pipe 16 are fixedly connected by a first positioning bolt 7 that passes through the first through hole and is screwed to the first sleeve 17.

[0036] In this embodiment, as Figure 1-6As shown, the rear plate welded component (reference) Figure 4 (As shown) includes a third rectangular steel pipe 18 and a back plate 10 welded to the top of the third rectangular steel pipe 18. The third rectangular steel pipe 18 is located inside the second C-shaped steel 3. The back plate 10 passes through the upper opening of the second C-shaped steel 3 and extends upward. The outer surfaces of the two first rectangular steel pipes 8 are clearance-fitted with the two ends of the third rectangular steel pipe 18.

[0037] In this embodiment, as Figure 1-6 As shown, the outer wall of the second C-shaped steel 3 is provided with one or more second through holes (not shown in the figure), and the third rectangular steel pipe 18 opposite to the second through hole is connected to a second sleeve with internal threads (refer to the first sleeve, not shown in the figure). The second C-shaped steel 3 and the third rectangular steel pipe 18 are fixedly connected by a second positioning bolt 11 that passes through the second through hole and is screwed to the second sleeve.

[0038] In this embodiment, as Figure 1-6 As shown, the rear plate 10 has an inverted trapezoidal relief groove 19 at its top (to facilitate the conveying of building materials into the unloading platform), and both the side plate 9 and the rear plate 10 have several intersecting second reinforcing beams. A frame 91 is welded to the outer periphery of the rear plate and the side plate.

[0039] In this embodiment, as Figure 1 , 2 As shown in Figure 6, the boom 4 is an I-beam structure, and the movable counterweight beam 5 includes a counterweight beam body 51 spanning the top of the two booms 4. A C-shaped frame 52 is welded to the bottom end of the counterweight beam body 51. The bottom end of the C-shaped frame 52 is bent inward and enters between the upper and lower flanges of the I-beam structure and is in clearance fit with the outer surface of the web of the I-beam structure. The C-shaped frame is detachably fixed to the boom 4 by a third positioning bolt 6.

[0040] In this embodiment, as Figure 1 , 2 As shown in Figure 6, the C-shaped frame 52 has a through threaded hole (not marked in the figure) on its side wall, and the C-shaped frame 52 is fixedly connected to the web plate by a third positioning bolt 6 that is screwed into the threaded hole.

[0041] In this embodiment, as Figure 1 , 2 As shown in Figure 6, the web plate is also evenly distributed with a number of connecting holes 13 along its length. The third positioning bolt passes through the threaded hole and is inserted into the connecting hole 13 (the heads of the opposite third positioning bolts on both sides are partially inserted into the connecting hole 13).

[0042] The working principle of this new type:

[0043] 1. This new type of structure is a prefabricated structure. When transporting or moving between building floors, this new type of structure can be disassembled into a first module consisting of a base plate, a first C-shaped steel, a second C-shaped steel, and an arm; a second module consisting of welded side plates; a third module consisting of welded rear plates; and a fourth module consisting of a movable counterweight beam. This can significantly increase the carrying capacity of the transport vehicle, improve transportation efficiency, save transportation costs, and facilitate movement between floors using ordinary lifting equipment, thereby reducing lifting costs.

[0044] 2. This new type of equipment is equipped with a movable counterweight beam. When the platform is initially lifted by the lifting equipment, the position of the movable counterweight beam can be changed to keep the platform in a balanced state, thereby reducing the difficulty of lifting and safety risks.

[0045] 3. For example Figure 2 As shown, when the boom of this new type needs to be fixed to the top plate of the building structure by U-shaped steel bars (the two arms of the U-shaped steel bars are clamped on both sides of the boom, and the bottom of the two arms are embedded in the top plate or connected and fixed with the embedded parts on the top plate), the movable counterweight beam is installed at the end of the boom and fixedly connected to the boom. This can play a counterweight role and avoid the platform body from exerting too much force on the U-shaped steel bars.

Claims

1. A prefabricated cantilevered unloading platform, characterized in that: The system includes a platform body and booms connected to both sides of one end of the platform body. The platform body includes a base plate, on which first C-shaped steel is welded to both sides. The front ends of the first C-shaped steel are welded to the rear ends of the corresponding booms. A second C-shaped steel is welded to the rear ends of the base plate. The two ends of the second C-shaped steel form a limiting groove with a right-angle structure when viewed from above between them and the rear ends of the corresponding first C-shaped steel. Side plate welded parts and rear plate welded parts are detachably and fixedly connected to the first C-shaped steel and the second C-shaped steel, respectively. Movable counterweight beams are also connected to the two booms. The movable counterweight beams are detachably and fixedly connected to the booms.

2. The assembled cantilevered unloading platform as described in claim 1, characterized in that: The open ends of the first and second C-shaped steels face upwards, and several intersecting first reinforcing beams are welded to the lower surface of the base plate.

3. The assembled cantilevered unloading platform as described in claim 2, characterized in that: The side plate welded component includes a first rectangular steel pipe arranged longitudinally, a second rectangular steel pipe welded to the bottom front end of the first rectangular steel pipe in the front-back direction, a side plate welded between the upper end of the second rectangular steel pipe and the front end of the first rectangular steel pipe, the second rectangular steel pipe being inserted into a first C-shaped steel, and the side plate passing through the upper opening of the first C-shaped steel and extending upward.

4. The assembled cantilevered unloading platform as described in claim 3, characterized in that: The cross-sectional dimensions of the first rectangular steel pipe match the dimensions of the limiting groove. The outer wall of the first C-shaped steel is provided with multiple first through holes. The second rectangular steel pipe, which is opposite to the first through hole, passes through and is welded with a first sleeve with internal threads. The first C-shaped steel and the second rectangular steel pipe are fixedly connected by a first positioning bolt that passes through the first through hole and is screwed to the first sleeve.

5. The assembled cantilevered unloading platform as described in claim 4, characterized in that: The back plate welded component includes a third rectangular steel pipe and a back plate welded to the top of the third rectangular steel pipe. The third rectangular steel pipe is located inside the second C-shaped steel. The back plate passes through the upper opening of the second C-shaped steel and extends upward. The outer surfaces of the two first rectangular steel pipes are clearance-fitted with the two ends of the third rectangular steel pipe.

6. The assembled cantilevered unloading platform as described in claim 5, characterized in that: The outer wall of the second C-shaped steel is provided with one or more second through holes, and a third rectangular steel pipe opposite to the second through hole passes through and is welded with a second sleeve with internal threads. The second C-shaped steel and the third rectangular steel pipe are fixedly connected by a second positioning bolt that passes through the second through hole and is screwed to the second sleeve.

7. The assembled cantilevered unloading platform as described in claim 6, characterized in that: The rear plate has an inverted trapezoidal relief groove at its top, and both the side plate and the rear plate have several intersecting second reinforcing beams. A frame is welded to the outer periphery of the rear plate and the side plate.

8. The assembled cantilevered unloading platform as described in claim 7, characterized in that: The boom is an I-beam structure. The movable counterweight beam includes a counterweight beam body that spans the top of the two booms. A C-shaped frame is welded to the bottom of the counterweight beam body. The bottom of the C-shaped frame is bent inward and enters between the upper and lower flanges of the I-beam structure and is in clearance fit with the outer surface of the web of the I-beam structure. The C-shaped frame is detachably fixed to the boom by a third positioning bolt.

9. The assembled cantilevered unloading platform as described in claim 8, characterized in that: The C-shaped frame has through threaded holes on its sidewalls, and the C-shaped frame is fixedly connected to the web plate by a third positioning bolt that is screwed into the threaded holes.

10. The assembled cantilevered unloading platform as described in claim 9, characterized in that: The web plate is also evenly distributed with several connecting holes along its length, and the third positioning bolt passes through the threaded hole and is inserted into the connecting hole.

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