Floor bearing plate supporting device

Abstract

The invention relates to a floor bearing plate supporting device, and relates to the technical field of buildings, the floor bearing plate supporting device comprises a plurality of sets of mounting assemblies, the number of each set of mounting assemblies is two, the mounting assemblies are arranged on two supporting beams correspondingly, and an arch-shaped supporting frame set with a downward opening is connected between the two mounting assemblies of the same set; a plurality of lifting rods are arranged on the supporting frame set and arranged at intervals in the interval direction of the two supporting beams, supporting rods are jointly arranged on the tops of the lifting rods, a plurality of square timbers arranged in the length direction of the supporting beams are arranged on the supporting rods, and the lifting rods can adjust the height of the supporting rods. Therefore, the square timber abuts against the bottom of the floor support plate. Pressure borne by the supporting rods is evenly dispersed to the arched supporting frame sets, then the pressure is naturally transmitted to the supporting beams in the supporting frame sets, stress concentration can be reduced, therefore, flexural deformation of the supporting rods is reduced, and the supporting effect of the supporting device on the floor bearing plate is improved.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to a floor deck support device. Background Art

[0002] The steel plate that supports the floor concrete is called the floor deck, which is widely used in steel structure buildings such as power plants, power equipment companies, railway stations, stadiums, concert halls, theaters, Olympic venues and sports stadiums. In the process of laying the floor deck, it is necessary to lay the floor deck on the support beam, and the support beam supports the floor deck.

[0003] When the span between support beams is too large, a support structure needs to be built to support the floor decking. Existing support structures are mostly support rods. The floor decking is supported by building support rods between two support beams. However, due to the large span, the middle position of the support rod will produce flexural deformation, resulting in poor supporting effect of the support device on the floor decking. Summary of the invention

[0004] In order to improve the problem that the middle position of the support rod may be bent and deformed, resulting in poor supporting effect of the support device on the floor deck, the present application provides a floor deck support device.

[0005] The floor deck support device provided in this application adopts the following technical solution: A floor deck support device comprises a plurality of groups of mounting components, each group of the mounting components comprises two mounting components, which are respectively arranged on two supporting beams; an arched supporting frame group with an opening facing downward is connected between the two mounting components in the same group; the supporting frame group comprises a plurality of lifting rods, which are arranged at intervals along the spacing direction of the two supporting beams and are commonly provided with supporting rods at the top; a plurality of square timbers are provided on the supporting rods along the length direction of the supporting beams; the lifting rods can adjust the height of the supporting rods so that the square timbers abut against the bottom of the floor deck.

[0006] By adopting the above technical scheme, when supporting a large-span floor deck, the installation components are first set on two support beams respectively, and then the support frame groups are installed on the two installation components respectively, and then the height of the lifting rods is initially adjusted, and then the support rods are installed on the lifting rods of the same group. After multiple support rods are installed, the square wood is overlapped on the support rods, and then the height of the lifting rods is adjusted again so that the square wood abuts against the bottom of the floor deck to achieve support for the floor deck. The gravity exerted on the support rods acts on the arched support frame group through multiple lifting rods, so that the pressure exerted on the support rods is evenly dispersed on the arched support frame group, and then the pressure is naturally transmitted to the support beam in the support frame group, which can reduce stress concentration, thereby reducing the flexural deformation of the support rods and improving the supporting effect of the support device on the floor deck.

[0007] In a specific feasible implementation scheme, the support frame group includes a middle plate and two groups of side plates, the two groups of side plates are arranged on both sides of the middle plate, and the two adjacent side plates and the middle plate and the adjacent side plates are rotatably connected through a rotating shaft. A rotating driving member is provided on the middle plate, and the rotating driving member is connected to the two adjacent rotating shafts through a first connecting member, and the remaining two rotating shafts are connected through a second connecting member. The rotating driving member can adjust the angles between the middle plate and the side plates, and between the side plates, so that the middle plate and the two groups of side plates can form an arch structure.

[0008] By adopting the above technical solution, when assembling the arched support frame group, in order to adapt to the support of floor decking plates of different heights or different spans, the arch of the support frame group needs to be adjusted. At this time, the rotating driving member adjusts the angle between the side plate and the middle plate through the first connecting member, and adjusts the angle between the two side plates through the second connecting member, thereby realizing the adjustment of the arch of the entire arched support frame group to adapt to the support of floor decking plates of different spans.

[0009] In a specific possible implementation scheme, the rotating drive member includes two gear shafts and two meshing spur gears, the two gear shafts are arranged on the middle plate to rotate in parallel, the two spur gears are coaxially fixed on the two gear shafts, and a worm gear assembly is provided on the middle plate, the worm gear assembly is used to drive one of the gear shafts to rotate, and each gear shaft is connected to one of the rotating shafts through the first connecting member.

[0010] By adopting the above technical solution, when adjusting the arch of the support frame group, the operator drives a gear shaft to rotate through the worm gear assembly, and the gear shaft drives the other gear shaft to rotate in the opposite direction through the engagement of two spur gears, so that the two groups of side plates on both sides of the middle plate can be adjusted symmetrically, thereby improving the convenience of adjusting the support frame group.

[0011] In a specific implementation scheme, the first connecting member includes a driving sprocket, a driven sprocket and a transmission chain, the driving sprocket is coaxially fixed on the gear shaft, the driven sprocket is coaxially fixed on the rotating shaft, and the driving sprocket and the driven sprocket are connected and transmitted via the transmission chain.

[0012] By adopting the above technical solution, the gear shaft rotates and drives the driving sprocket to rotate. The driving sprocket drives the driven sprocket to rotate through the transmission chain. The driven sprocket drives the side plate to rotate around the rotating shaft, thereby adjusting the angle between the side plate and the middle plate.

[0013] In a specific implementation scheme, the second connecting member includes two transmission sprockets, and the two transmission sprockets are coaxially fixedly arranged on two adjacent rotating shafts, and the two transmission sprockets are connected and driven by a driving chain.

[0014] By adopting the above technical solution, the transmission sprocket and the driving chain are used between the two rotating shafts to improve the stability and accuracy of the transmission.

[0015] In a specific possible implementation scheme, a connecting portion is provided on the side plate, a fixing portion is fixedly provided on the rotating shaft on the adjacent side plate, the fixing portion is provided with a fixing hole for inserting the connecting portion, and the fixing portion is provided with a fixing piece for fixing the connecting portion.

[0016] By adopting the above technical solution, when installing between the side panels, the connecting part on one side panel is inserted into the fixing hole on the other side panel, and then the connecting part is fixed by the fixing piece to complete the installation between the two side panels. The side panels are designed to be detachable, which can improve the convenience of carrying and transportation. At the same time, the span of the support frame group can be changed by increasing the number of side panels, thereby achieving support for floor decking panels with different spans.

[0017] In a specific possible implementation scheme, the fixing member includes a fixing bolt, the connecting portion is provided with a fixing groove, the fixing bolt is threadedly penetrated through the fixing portion, and one end of the fixing bolt can be inserted into the fixing groove to fix the connecting portion.

[0018] By adopting the above technical solution, when the two side panels are installed, after the connecting part is inserted into the fixing hole, the fixing bolt is screwed into the fixing groove to complete the installation and fixation of the connecting part and the fixing part, thereby improving the convenience of disassembly and assembly of the two side panels.

[0019] In a specific feasible implementation scheme, the mounting assembly includes a mounting seat, which is detachably mounted on the support beam, and two support plates are fixedly mounted on the mounting seat and spaced apart from each other. The side plate can be inserted between the two support plates, and a support shaft is fixedly mounted on the side plate. A support groove is formed on the support plate for inserting the support shaft so as to support the side plate.

[0020] By adopting the above technical solution, the mounting base is first installed on the support beam, and then the support shaft on the side panel is inserted into the support groove to complete the installation between the support frame group and the support beam. Through the connection between the support shaft and the support groove, it can adapt to the connection between the support frame group and the support beam with different arch degrees.

[0021] In a specific possible implementation scheme, each of the side panels or the middle panels corresponds to a lifting rod; The lifting rod includes a base rod and a threaded rod. The base rod is hinged to the side plate or the middle plate through a hinged support. The threaded rod is screwed into the base rod to adjust the extension length of the threaded rod. The threaded rod is fixedly connected to the support rod through a mounting piece.

[0022] By adopting the above technical solution, after the support frame assembly is installed, the threaded rod is rotated to adjust the height of the threaded rod extending out of the base rod, and then the support rod is installed on the threaded rod through the mounting piece to adjust the height of the support device.

[0023] In a specific possible implementation scheme, the mounting member includes two sets of fixing nuts arranged on the upper and lower sides of the support rod, the threaded rod passes through the support rod, and the two sets of fixing nuts are threadedly sleeved on the threaded rod to fix the support rod.

[0024] By adopting the above technical solution, when installing the threaded rod and the support rod, the threaded rod is passed through the support rod, and then the two fixing nuts are screwed to tighten against the support rod, thereby completing the fixation of the threaded rod and the support rod, and improving the convenience of disassembly and assembly of the threaded rod and the support rod.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When supporting a large-span floor deck, first set the installation components on two support beams respectively, then install the support frame groups on the two installation components respectively, then initially adjust the height of the lifting rods, and then install the support rods on the lifting rods of the same group. After multiple support rods are installed, overlap the square wood on the support rods, and then adjust the height of the lifting rods again so that the square wood abuts against the bottom of the floor deck to support the floor deck. The gravity on the support rod acts on the arched support frame group through multiple lifting rods, so that the pressure on the support rod is evenly dispersed on the arched support frame group, and then the pressure is naturally transmitted to the support beam in the support frame group, which can reduce stress concentration, thereby reducing the flexural deformation of the support rod and improving the supporting effect of the support device on the floor deck; 2. When assembling the arched support frame group, in order to adapt to the support of floor decking plates of different heights or different spans, the arch of the support frame group needs to be adjusted. At this time, the rotating driving member adjusts the angle between the side plate and the middle plate through the first connecting member, and adjusts the angle between the two side plates through the second connecting member, thereby adjusting the arch of the entire arched support frame group to adapt to the support of floor decking plates of different spans. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a floor deck support device according to an embodiment of the present application.

[0027] Figure 2 It is a structural schematic diagram for showing the support frame group.

[0028] Figure 3 is along Figure 2 Section view along line AA.

[0029] Figure 4 yes Figure 1 Enlarged view of part B in the middle.

[0030] Figure 5 yes Figure 1 Enlarged view of part C in the middle.

[0031] Explanation of the accompanying drawings: 1. Installation assembly; 11. Installation seat; 12. Support plate; 13. Inclined surface; 14. Support groove; 15. Support shaft; 2. Support beam; 3. Support frame group; 31. Middle plate; 32. Side plate; 33. Rotating shaft; 341. Fixing part; 342. Connecting part; 343. Fixing hole; 344. Fixing piece; 3441. Fixing bolt; 3442. Fixing groove; 35. Rotating drive member; 351. Gear shaft; 352. Spur gear; 353. Worm gear assembly; 36. First connecting piece; 361. Driving sprocket; 362. Driven sprocket; 363. Transmission chain; 37. Second connecting piece; 371. Transmission sprocket; 372. Drive chain; 4. Lifting rod; 41. Base rod; 42. Threaded rod; 43. Mounting piece; 431. Fixing nut; 5. Support rod; 6. Square wood; 7. Floor decking. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a floor deck support device.

[0034] Reference Figure 1 A floor deck support device includes multiple groups of mounting components 1. In this embodiment, there are two groups of mounting components 1. Each group of mounting components 1 has two mounting components 1, which are respectively arranged on two supporting beams 2. The supporting beams 2 in this embodiment are I-beams. An arched supporting frame group 3 with an opening facing downward is connected between the two mounting components 1 in the same group. The two supporting frame groups 3 are arranged in parallel and spaced apart. Each supporting frame group 3 is provided with a plurality of lifting rods 4. The plurality of lifting rods 4 are arranged in spaced apart directions along the spacing direction of the two supporting beams 2, and a supporting rod 5 is commonly provided on the top.

[0035] Reference Figure 1, a plurality of square timbers 6 arranged along the length direction of the support beam 2 are cross-arranged on the two support rods 5, and the square timbers 6 are overlapped on the support rods 5 and cross-arranged with the support rods 5. The square timbers 6 are long strip components with rectangular cross-sections, and the length is adjusted according to actual needs. The material is usually hard wood, which can withstand large loads and has good stability. An alternative feature of the square timber 6 can be a steel plate, which can also play a role in uniformly distributing the load, and its thickness and width are designed according to actual requirements. The height of the support rod 5 can be adjusted by the lifting rod 4 so that the square timber 6 abuts against the bottom of the floor decking 7.

[0036] When supporting a large-span floor decking 7, first set the installation components 1 on the two support beams 2 respectively, then install the support frame groups 3 on the two installation components 1 respectively, then initially adjust the height of the lifting rods 4, and then install the support rods 5 on the lifting rods 4 of the same group. After multiple support rods 5 are installed, overlap the square wood 6 on the support rods 5, and then adjust the height of the lifting rods 4 again, so that the square wood 6 abuts against the bottom of the floor decking 7 to support the floor decking 7. The gravity exerted on the support rods 5 acts on the arched support frame group 3 through multiple lifting rods 4, so that the pressure exerted on the support rods 5 is evenly dispersed on the arched support frame group 3, and then the pressure is naturally transmitted to the support beam 2 in the support frame group 3, which can reduce stress concentration, thereby reducing the flexural deformation of the support rods 5 and improving the supporting effect of the support device on the floor decking 7.

[0037] Reference Figure 2 , Figure 3 The support frame group 3 in this embodiment includes a middle plate 31 and two groups of side plates 32. In this embodiment, the number of each group of side plates 32 is three as an example. The two groups of side plates 32 are arranged on both sides of the middle plate 31. The two adjacent side plates 32 and the middle plate 31 and the adjacent side plates 32 are rotatably connected by a rotation shaft 33. The rotation shaft 33 between the side plates 32 and the side plates 32 is rotatably arranged on the side plates 32 close to the middle plate 31. The rotation shaft 33 between the side plates 32 and the middle plate 31 is rotatably arranged on the middle plate 31. The shaft 33 is fixedly connected to the side plate 32, and the rotating shaft 33 used for connecting the side plates 32 is detachably connected to another side plate 32. The specific detachable method is that a fixing portion 341 is fixedly provided on the rotating shaft 33, and the fixing portion 341 and the rotating shaft 33 are integrally formed. A connecting portion 342 is provided on the side plate 32 adjacent to the rotating shaft 33, and the cross-section of the connecting portion 342 is rectangular. A fixing hole 343 for inserting the connecting portion 342 is provided on the fixing portion 341, and the fixing hole 343 and the connecting portion 342 are matched in a concave-convex manner to ensure the stability of the connection between the two side plates 32.

[0038] Reference Figure 2 , Figure 3, a fixing member 344 for fixing the connecting portion 342 is provided on the fixing portion 341. The fixing member 344 in this embodiment includes a fixing bolt 3441, a fixing groove 3442 is provided on the connecting portion 342, and the number of the fixing grooves 3442 is two, and the two fixing grooves 3442 are respectively arranged on the opposite side walls of the connecting portion 342, and the fixing bolts 3441 correspond to the fixing grooves 3442 one by one, and each fixing bolt 3441 is threadedly penetrated on the fixing portion 341, and when the connecting portion 342 is inserted into the fixing hole 343, the fixing groove 3442 moves to a position relative to the fixing bolt 3441, and the fixing bolt 3441 is rotated to be inserted into the fixing groove 3442, so as to complete the fixed connection between the connecting portion 342 and the fixing portion 341, and the fixing bolt 3441 is rotated to be pulled out of the fixing groove 3442, so as to complete the disassembly between the connecting portion 342 and the fixing portion 341.

[0039] When installing between the side panels 32, the connecting portion 342 on one side panel 32 is inserted into the fixing hole 343 on the other side panel 32, and then the connecting portion 342 is fixed by the fixing piece 344 to complete the installation between the two side panels 32. The side panels 32 are designed to be detachable, which can improve the convenience of carrying and transportation. At the same time, the span of the support frame group 3 can be changed by increasing the number of side panels 32, thereby achieving support for floor decking slabs 7 with different spans.

[0040] Reference Figure 2 A rotating driving member 35 is provided on the middle plate 31. The rotating driving member 35 in this embodiment includes two gear shafts 351 and two meshing spur gears 352. The two gear shafts 351 are connected to the middle plate 31 for parallel rotation and are arranged perpendicular to the length direction of the middle plate 31. The two spur gears 352 are coaxially fixed on the two gear shafts 351 respectively to ensure that the rotation directions of the two gear shafts 351 are opposite. A worm gear assembly 353 is provided on the middle plate 31. The worm gear is coaxially fixed on one of the gear shafts 351. The worm is rotatably connected to the middle plate 31. The gear shaft 351 is driven to rotate by the meshing of the worm and the turbine. At the same time, the self-locking feature of the turbine and worm can ensure that the gear shaft 351 is locked when stationary.

[0041] Reference Figure 2 Each gear shaft 351 is connected to the rotating shaft 33 on the same side through a first connecting member 36. The first connecting member 36 in this embodiment includes a driving sprocket 361, a driven sprocket 362 and a transmission chain 363. The driving sprocket 361 is coaxially fixed on the gear shaft 351, and the driven sprocket 362 is coaxially fixed on the rotating shaft 33. The driving sprocket 361 and the driven sprocket 362 are connected and transmitted through the transmission chain 363.

[0042] Reference Figure 2The two adjacent rotating shafts 33 are connected by a second connecting member 37. The second connecting member 37 in this embodiment includes two transmission sprockets 371. The two transmission sprockets 371 are coaxially fixed on the two adjacent rotating shafts 33, and the two transmission sprockets 371 are connected and driven by a driving chain 372. The transmission accuracy is improved by the meshing transmission of the sprocket and the chain.

[0043] When supporting floor decking plates 7 of different spans, the length of the support frame assembly 3 is adjusted by splicing different numbers of side plates 32 to adapt to the support of floor decking plates 7 of different spans. When the span of the two support beams 2 cannot be adjusted by adding an integer number of side plates 32, the change in the span of the support beam 2 can be adapted to by adjusting the arch of the support frame group 3. When adjusting the arch of the support frame group 3, the operator drives a gear shaft 351 to rotate through the worm gear assembly 353. The gear shaft 351 drives the other gear shaft 351 to rotate in the opposite direction through the meshing of two spur gears 352. The gear shaft 351 drives the rotating shaft 33 to rotate through the active sprocket 361, the driven sprocket 362 and the transmission chain 363. The rotating shaft 33 is further transmitted through the transmission sprocket 371 and the driving chain 372, so that the side plates 32 on both sides rotate relative to each other to increase the arch of the support frame group 3. At the same time, rotating the worm in the opposite direction can reduce the arch of the support frame group 3, thereby improving the convenience of adjusting the arch of the support frame group 3, thereby adapting to the situation that the span cannot be adjusted by adding an integer number of side plates 32, and improving the flexibility of the support frame group 3 in supporting floor decking plates 7 with different spans.

[0044] Reference Figure 1 , Figure 4 The mounting assembly 1 in this embodiment includes a mounting seat 11, which is detachably mounted on the support beam 2 by bolts. Two support plates 12 are fixedly mounted on the mounting seat 11, and a space is left between the two support plates 12 for the side plate 32 to be inserted. Each support plate 12 is provided with an inclined surface 13, and each inclined surface 13 is provided with a support groove 14. The inclined surface 13 is inclinedly arranged to ensure that the notch of the support groove 14 is inclined upward. A support shaft 15 is fixedly mounted on the side plate 32 at the end of the support frame group 3, and the support shaft 15 corresponds to the support plate 12 one by one. The two support shafts 15 are fixedly mounted on the opposite side walls of the side plate 32, and the support shaft 15 is inserted into the support groove 14 to complete the installation between the support frame group 3 and the mounting seat 11.

[0045] Reference Figure 1 , Figure 5Each side plate 32 or middle plate 31 corresponds to a lifting rod 4, and the lifting rod 4 includes a base rod 41 and a threaded rod 42. The base rod 41 is hinged to the side plate 32 or middle plate 31 through a hinged support, and the threaded rod 42 is screwed into the base rod 41 so as to adjust the extension length of the threaded rod 42. The threaded rod 42 is fixedly connected to the support rod 5 through a mounting member 43. The mounting member 43 in this embodiment includes two sets of fixing nuts 431 arranged on the upper and lower sides of the support rod 5. The threaded rod 42 passes through the support rod 5. The two sets of fixing nuts 431 are threadedly sleeved on the threaded rod 42 and are located on the upper and lower sides of the support rod 5. The fixing nut 431 located at the bottom supports the support rod 5, and the fixing nut 431 located at the top presses and fixes the support rod 5 on the fixing nut 431 at the bottom to fix the support rod 5.

[0046] After the support frame group 3 is installed, the threaded rod 42 is rotated to adjust the height of the threaded rod 42 extending from the base rod 41, and then the support rod 5 is installed on the threaded rod 42 through the mounting member 43 to adjust the height of the support device. When installing the threaded rod 42 and the support rod 5, the threaded rod 42 is passed through the support rod 5, and then a fixing nut 431 is screwed under the support rod 5 to support the support rod 5, and then the square wood 6 is overlapped on the support rod 5, and then the threaded rod 42 is rotated to lift the support rod 5 so that the square wood 6 abuts against the bottom of the floor deck 7, and then the fixing nut 431 above the support rod 5 is rotated to abut against the support rod 5 to fix the support rod 5.

[0047] The implementation principle of a floor deck support device in the embodiment of the present application is as follows: when supporting a floor deck 7 with a large span, firstly, the mounting seats 11 are respectively fixed on the two support beams 2 by bolts, and then, according to the span of the two support beams 2, different numbers of side plates 32 are spliced ​​and the arch of the support frame group 3 is adjusted to adjust the length of the support frame group 3 to adapt to the span of the two support beams 2, and the support shaft 15 at the end of the support frame group 3 is inserted into the support groove 14 of the two mounting seats 11, and then the height of the lifting rod 4 is initially adjusted, and then the support rod 5 is installed to the same On the lifting rod 4 of the group, after multiple support rods 5 are installed, the square wood 6 is overlapped on the support rod 5, and then the height of the lifting rod 4 is adjusted again, so that the square wood 6 abuts against the bottom of the floor decking slab 7, so as to support the floor decking slab 7, and the gravity exerted on the support rod 5 acts on the arched support frame group 3 through multiple lifting rods 4, so that the pressure exerted on the support rod 5 is evenly dispersed on the arched support frame group 3, and then the pressure is naturally transmitted to the support beam 2 in the support frame group 3, which can reduce stress concentration, thereby reducing the flexural deformation of the support rod 5 and improving the supporting effect of the support device on the floor decking slab 7.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A floor deck support device, characterized in that: The invention comprises a plurality of groups of installation components (1), each group of the installation components (1) comprises two components, which are respectively arranged on two support beams (2); an arched support frame group (3) with an opening facing downward is connected between the two installation components (1) in the same group; the support frame group (3) is provided with a plurality of lifting rods (4); the plurality of lifting rods (4) are arranged at intervals along the spacing direction of the two support beams (2); and a support rod (5) is commonly provided at the top; the plurality of support rods (5) are provided with a plurality of square timbers (6) arranged along the length direction of the support beams (2); the lifting rods (4) can adjust the height of the support rods (5) so that the square timbers (6) abut against the bottom of a floor decking plate (7).

2. The floor deck support device according to claim 1, characterized in that: The support frame group (3) comprises an intermediate plate (31) and two groups of side plates (32). The two groups of side plates (32) are arranged on both sides of the intermediate plate (31). Two adjacent side plates (32) and the intermediate plate (31) and adjacent side plates (32) are rotatably connected via a rotating shaft (33). A rotating driving member (35) is provided on the intermediate plate (31). The rotating driving member (35) and the two adjacent rotating shafts (33) are connected via a first connecting member (36). The remaining two rotating shafts (33) are connected via a second connecting member (37). The rotating driving member (35) can adjust the angles between the intermediate plate (31) and the side plates (32) and between the side plates (32) so that the intermediate plate (31) and the two groups of side plates (32) can form an arch structure.

3. The floor deck support device according to claim 2, characterized in that: The rotary drive member (35) comprises two gear shafts (351) and two meshing spur gears (352); the two gear shafts (351) are arranged on the intermediate plate (31) to rotate in parallel; the two spur gears (352) are respectively coaxially fixed on the two gear shafts (351); a worm gear assembly (353) is provided on the intermediate plate (31); the worm gear assembly (353) is used to drive one of the gear shafts (351) to rotate; each gear shaft (351) is connected to one of the rotating shafts (33) via the first connecting member (36).

4. The floor deck support device according to claim 3, characterized in that: The first connecting member (36) comprises a driving sprocket (361), a driven sprocket (362) and a transmission chain (363); the driving sprocket (361) is coaxially fixedly arranged on the gear shaft (351); the driven sprocket (362) is coaxially fixedly arranged on the rotating shaft (33); the driving sprocket (361) and the driven sprocket (362) are connected and transmitted via the transmission chain (363).

5. The floor deck support device according to claim 2, characterized in that: The second connecting member (37) comprises two transmission sprockets (371), the two transmission sprockets (371) are coaxially fixedly arranged on two adjacent rotating shafts (33), and the two transmission sprockets (371) are connected for transmission via a driving chain (372).

6. The floor deck support device according to claim 2, characterized in that: The side plate (32) is provided with a connecting portion (342), the rotating shaft (33) on the adjacent side plate (32) is fixedly provided with a fixing portion (341), the fixing portion (341) is provided with a fixing hole (343) for inserting the connecting portion (342), and the fixing portion (341) is provided with a fixing piece (344) for fixing the connecting portion (342).

7. The floor deck support device according to claim 6, characterized in that: The fixing member (344) comprises a fixing bolt (3441), the connecting portion (342) is provided with a fixing groove (3442), the fixing bolt (3441) is threadedly inserted into the fixing portion (341), and one end of the fixing bolt (3441) can be inserted into the fixing groove (3442) so as to fix the connecting portion (342).

8. The floor deck support device according to claim 2, characterized in that: The mounting assembly (1) comprises a mounting seat (11), the mounting seat (11) being detachably mounted on the support beam (2), two support plates (12) being fixedly mounted on the mounting seat (11) and spaced apart from each other, the side plate (32) being capable of being inserted between the two support plates (12), a support shaft (15) being fixedly mounted on the side plate (32), and a support groove (14) for inserting the support shaft (15) being provided on the support plate (12) so as to support the side plate (32).

9. The floor deck support device according to claim 2, characterized in that: Each of the side plates (32) or the middle plates (31) corresponds to a lifting rod (4); The lifting rod (4) comprises a base rod (41) and a threaded rod (42); the base rod (41) is hinged to the side plate (32) or the middle plate (31) via a hinged support; the threaded rod (42) is screwed into the base rod (41) so as to adjust the extension length of the threaded rod (42); the threaded rod (42) is fixedly connected to the support rod (5) via a mounting member (43).

10. The floor deck support device according to claim 9, characterized in that: The mounting member (43) comprises two sets of fixing nuts (431) arranged on the upper and lower sides of the support rod (5); the threaded rod (42) passes through the support rod (5); and the two sets of fixing nuts (431) are threadedly sleeved on the threaded rod (42) so as to fix the support rod (5).

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