A BIM-based prefabricated staircase

Abstract

This application discloses a BIM-based prefabricated staircase, relating to the field of prefabricated staircase technology, which improves the poor applicability of staircases. It includes an upper floor slab, a lower floor slab, a mounting frame, and a step frame. The step frame is mounted on the mounting frame, which is positioned between the upper and lower floor slabs. The step frame includes several step pedals, which are rotatably connected to adjacent step pedals. The step frame has a first usage state and a second usage state. In the first usage state, the step pedals are perpendicular to adjacent step pedals. In the second usage state, all step pedals are on the same plane. The mounting frame is provided with a first fixing component that secures the step frame when it is in the first usage state, and several second fixing components that secure the step frame when it is in the second usage state. This application improves the applicability of staircases.

Description

Technical Field

[0001] This application relates to the field of prefabricated staircase technology, and in particular to a BIM-based prefabricated staircase. Background Technology

[0002] Building Information Modeling (BIM) uses various relevant information and data of a building project as the foundation for creating a building model. It simulates the real-world information of a building through digital information. During construction, engineering inspections of the building are conducted and compared with the established BIM model.

[0003] Existing as Figure 1 The staircase shown includes an upper floor slab 2, a lower floor slab 3, and a staircase body 1, which is installed between the upper floor slab 2 and the lower floor slab 3.

[0004] Existing prefabricated staircases can only be used for pedestrians. In special circumstances, such as renovation or moving large furniture, wheeled vehicles are needed. However, the staircase steps make it difficult for wheeled vehicles to go up and down the stairs, resulting in poor applicability of the staircases. Summary of the Invention

[0005] To improve the applicability of stairs, this application provides a BIM-based prefabricated staircase.

[0006] This application provides a BIM-based prefabricated staircase, employing the following technical solution:

[0007] A BIM-based prefabricated staircase includes an upper floor slab, a lower floor slab, an installation frame, and a stepping frame. The stepping frame is mounted on the installation frame, which is located between the upper floor slab and the lower floor slab. The stepping frame includes a plurality of stepping treads, which are rotatably connected to adjacent stepping treads.

[0008] The footrest has a first use state and a second use state. When the footrest is in the first use state, the foot pedals are perpendicular to each other. When the footrest is in the second use state, all the foot pedals are on the same plane.

[0009] The mounting frame is provided with a first fixing component that fixes the foot pedal when it is in the first use state, and the mounting frame is provided with a plurality of second fixing components that fix the foot pedal when it is in the second use state.

[0010] By adopting the above technical solution, when the stairs need to be used normally, the step frame is adjusted to the first use state and fixed by the first fixing component; when it is necessary to move the vehicle between the upper and lower floors, the step frame is adjusted to the second use state and fixed by the second fixing component, thereby improving the applicability of the stairs.

[0011] Optionally, the mounting frame includes a base plate and two parallel control plates, the foot pedal is disposed between two foot pedals, the foot pedal also includes a sliding plate, the sliding plate is rotatably connected to one of the foot pedals, the first fixing component includes a plug rod and several sliding rods, the upper floor slab has a sliding groove for the sliding plate to be inserted, and the sliding plate has a fixing groove for the plug rod to be inserted.

[0012] The sliding rod slides horizontally on the foot pedal. The control panel has a slot for inserting the sliding rod. When the foot pedal is in its first use state, the sliding rod is aligned with the clamping slot. The foot pedal is provided with an elastic element that controls the sliding rod to slide closer to the slot. The foot pedal is also provided with an unlocking element that controls the sliding rod to slide away from the slot.

[0013] By adopting the above technical solution, the sliding plate is inserted into the sliding groove and the plug rod is inserted into the fixing groove. Then, the pedal frame is adjusted to the first use state. Under the action of the elastic force of the elastic element, the sliding rod slides towards the control plate until the sliding rod is inserted into the plug groove, thus completing the effect of the first fixing component fixing the pedal frame in the first use state.

[0014] Optionally, the elastic element is a drive spring, and a sliding groove for the sliding plate to slide is provided on the side of the pedal near the control panel. One end of the drive spring abuts against the sliding rod, and the other end of the drive spring abuts against the bottom of the sliding groove.

[0015] By adopting the above technical solution, under the action of the driving spring force, the sliding rod slides towards the fixed groove until the sliding rod is inserted into the insertion groove.

[0016] Optionally, the unlocking component is an unlocking rod that slides on the pedal, and the sliding rod is provided with a guide slope for the unlocking rod to abut against and control the sliding rod to slide away from the insertion slot.

[0017] By adopting the above technical solution, the unlocking rod is controlled to move towards the sliding rod. Under the action of the guide slope, the sliding rod slides away from the insertion slot until the sliding rod is disengaged from the insertion slot.

[0018] Optionally, the second fixing component includes a fixing rod and a fixing spring. The base plate has a moving groove on the side near the foot pedal for the fixing rod to slide in. The upper floor has a storage groove for the foot pedal to slide into. The foot pedal has a stabilizing groove for the fixing rod to insert into. When the foot pedal is in the second use state, the foot pedal that is not in the storage groove abuts against the base plate, and the fixing rod is aligned with the stabilizing groove. One end of the fixing spring abuts against the fixing rod, and the other end of the fixing spring abuts against the bottom of the moving groove.

[0019] By adopting the above technical solution, when the pedal frame is in the second use state, the fixing rod is aligned with the stabilizing groove. Under the action of the fixing spring, the fixing rod is inserted into the stabilizing groove, thereby achieving the effect of the second fixing component fixing the pedal frame in the second use state.

[0020] Optionally, the control plate has several clamping plates that slide horizontally. Each clamping plate has a clamping groove for the foot pedal to slide. When the foot pedal is in the first use state, the foot pedal is aligned with the clamping groove. The control plate is provided with a contact spring that controls the clamping plates to slide away from the foot pedal. The control plate is also provided with an operation plate. The clamping plates have a guide surface that the operation plate contacts and controls the clamping plates to slide closer to the foot pedal.

[0021] By adopting the above technical solution, when the pedal frame is in the first use state, the clamping plate is slid towards the pedal via the control panel, and the pedal is inserted into the clamping groove. The clamping plate enhances the stability of the pedal in the first use state.

[0022] Optionally, the clamping groove opening is chamfered.

[0023] By adopting the above technical solution, the chamfer facilitates the insertion of the pedal into the clamping groove.

[0024] Optionally, when the foot pedal is in the second use state, several clamping plates abut against the end face of the foot pedal away from the base plate.

[0025] By adopting the above technical solution, when the pedal frame is in its second use state, the clamping plate can also play a supporting role, enhancing the stability of the pedal on the base plate.

[0026] In summary, this application includes at least one of the following beneficial effects:

[0027] When the step platform is in its first use state, it is fixed in place by the first fixing component, and then the clamping plate clamps the step pedal to complete the fixation of the step pedal. At this time, the stairs can be used for walking. When the step platform is in its second use state, it is fixed in place by the second fixing component, and then the clamping plate abuts against the step pedal to complete the fixation of the step pedal. At this time, the stairs can be used to move wheeled vehicles, thereby improving the applicability of the stairs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of existing technology;

[0029] Figure 2 This is a structural diagram of the footrest in the first use state in this embodiment;

[0030] Figure 3 This is an exploded view of the mounting frame and the upper floor slab in this embodiment;

[0031] Figure 4 This is a cross-sectional schematic diagram of the base plate and the foot pedal in this embodiment;

[0032] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0033] Figure 6 This is a cross-sectional view highlighting the sliding rod in this embodiment;

[0034] Figure 7 yes Figure 6 Enlarged view of point B in the middle;

[0035] Figure 8 This is an exploded view of the clamping plate in this embodiment;

[0036] Figure 9 yes Figure 8 Enlarged view of point C in the middle;

[0037] Figure 10 This is a schematic diagram of the structure of the footrest in the second use state in this embodiment;

[0038] Figure 11 This is a cross-sectional view highlighting the second fixing component in this embodiment;

[0039] Figure 12 yes Figure 10 Enlarged view of point D in the middle;

[0040] Figure 13 yes Figure 11 Enlarged schematic diagram at point F in the middle.

[0041] Explanation of reference numerals in the attached drawings: 1. Staircase body; 2. Upper floor slab; 21. First mounting groove; 22. Sliding groove; 23. Vertical groove; 3. Lower floor slab; 31. Second mounting groove; 35. Storage groove; 4. Step frame; 41. Step pedal; 411. Sliding groove; 412. Limiting groove; 413. Stabilizing groove; 414. Unlocking groove; 42. Sliding plate; 421. Fixing groove; 5. Mounting frame; 51. Control panel; 511. Insertion groove; 512. Control groove; 513. Pushing groove; 52. Base plate; 521. Moving groove; 522. Connecting groove; 6. Cement layer; 61. Operating groove; 7. First fixing component; 71. Insert rod; 73. Sliding rod; 731. Guide slope; 732. Guide surface; 8. Elastic element; 81. Drive spring; 9. Unlocking component; 91. Unlocking rod; 911. Limiting block; 10. Plug; 11. Clamping plate; 111. Clamping groove; 112. Guide surface; 113. Chamfer; 12. Operating plate; 121. Push rod; 13. Abutment spring; 14. Second fixing component; 141. Fixing rod; 1411. Connecting rod; 142. Fixing spring; 15. Mounting strip. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 2-13 This application will be described in further detail.

[0043] This application discloses a BIM-based prefabricated staircase.

[0044] Reference Figure 2 and Figure 3 The BIM-based prefabricated staircase includes an upper floor slab 2, an installation frame 5, and a stepping frame 4. Both the installation frame 5 and the stepping frame 4 are installed between the upper floor slab 2 and the lower floor slab 3. The installation frame 5 includes two parallel control plates 51 and a base plate 52 installed between the two control plates 51. A first installation slot 21 for inserting the control plates 51 is provided on the upper floor slab 2, and a second installation slot 31 for inserting the control plates 51 is provided on the lower floor slab 3. When the control plates 51 are inserted into the first installation slot 21, a layer of cement 6 is covered on the upper floor slab 2. When the control plates 51 are inserted into the second installation slot 31, a layer of cement 6 is covered on the lower floor slab 3, thus completing the installation of the installation frame 5 between the upper floor slab 2 and the lower floor slab 3.

[0045] Reference Figure 3 The footrest 4 includes a sliding plate 42 and several foot pedals 41. The foot pedals 41 are rotatably connected to adjacent foot pedals 41 via shafts, and the sliding plate 42 is rotatably connected to adjacent foot pedals 41 via shafts. A sliding groove 22 is provided on the upper floor slab 2 for the sliding plate 42 to be inserted.

[0046] Reference Figure 3 and Figure 4The footrest 4 has a first use state and a second use state: when the footrest 4 is in the first use state, the foot pedals 41 are perpendicular to each other; when the footrest 4 is in the second use state, all foot pedals 41 are on the same plane.

[0047] Reference Figure 5 and Figure 6 A first fixing component 7 is also installed on the mounting bracket 5. The first fixing component 7 includes a plug-in rod 71 and several sliding rods 73. A vertical groove 23 is provided on the upper floor slab 2 for the plug-in rod 71 to slide vertically. The vertical groove 23 penetrates into the cement layer 6 and is connected to the sliding groove 22. A fixing groove 421 is provided on the sliding plate 42 for the plug-in rod 71 to be inserted. When the plug-in rod 71 is inserted into the fixing groove 421, the sliding plate 42 is fixed in the upper floor slab 2. In order to facilitate the control of the sliding of the plug-in rod 71, an operating groove 61 is provided on the cement layer 6 at the opening of the vertical groove 23.

[0048] Reference Figure 6 and Figure 7 Several sliding rods 73 are arranged in pairs, and each pair of sliding rods 73 is installed on a pedal 41. The two sliding rods 73 in each pair slide in opposite directions. Sliding grooves 411 for the sliding rods 73 to slide horizontally are provided at both ends of the pedal 41. An elastic element 8 is also installed on the pedal 41. The elastic element 8 is a drive spring 81. One end of the drive spring 81 abuts against the sliding rod 73, and the other end of the drive spring 81 abuts against the bottom of the sliding groove 411.

[0049] Reference Figure 6 and Figure 7 The control panel 51 is also provided with a slot 511 for the sliding rod 73 to be inserted. When the pedal frame 4 is in the first use state, the sliding rod 73 is aligned with the slot 511. Under the action of the driving spring 81, the sliding rod 73 slides towards the slot 511 until the sliding rod 73 is inserted into the slot 511, thus completing the fixing effect of the pedal 41 on the control panel 51.

[0050] Reference Figure 6 and Figure 7 An unlocking component 9 is also installed on the pedal 41. The unlocking component 9 is an unlocking rod 91 that slides on the pedal 41. An unlocking groove 414 is provided on the pedal 41 for the unlocking rod 91 to slide. The sliding direction of the unlocking rod 91 is perpendicular to the sliding direction of the sliding rod 73. A guide slope 731 is provided on the sliding rod 73. When the unlocking rod 91 slides towards the sliding rod 73, the unlocking rod 91 can abut against the guide slope 731. With the cooperation of the guide slope 731, the sliding rod 73 slides away from the insertion groove 511 until the sliding rod 73 is completely retracted into the pedal 41, releasing the fixed connection between the pedal 41 and the control board 51.

[0051] Reference Figure 6 and Figure 7 A limiting block 911 is welded to the side wall of the unlocking rod 91, and a limiting groove 412 is provided on the pedal 41 for the limiting block 911 to slide. When the limiting block 911 enters the limiting groove 412, a plug 10 is fixedly installed at the opening of the limiting groove 412. When the limiting block 911 slides towards the plug 10 until the limiting block 911 abuts against the plug 10, the limiting block 911 can no longer slide, thereby reducing the possibility of the unlocking rod 91 coming off the pedal 41.

[0052] Reference Figure 8 and Figure 9 Several clamping plates 11 are also installed on the control plate 51. The clamping plates 11 are in pairs, and the two clamping plates 11 in each pair are respectively installed on two control plates 51. A control groove 512 for the clamping plates 11 to slide horizontally is provided on the opposite end face of the two control plates 51. A clamping groove 111 for the foot pedal 41 to slide is provided on the clamping plate 11. When the foot pedal 4 is in the first use state, the foot pedal 41 is aligned with the clamping groove 111.

[0053] Reference Figure 8 and Figure 9 An operation panel 12 is also installed on the control panel 51. Multiple push rods 121 are installed on the operation panel 12. A push groove 513 for sliding of the push rods 121 is provided on the control panel 51. A guide surface 112 is provided on the clamping plate 11. When the push rod 121 slides towards the clamping plate 11, the push rod 121 can abut against the guide surface 112. Under the action of the guide surface 112, the clamping plate 11 slides towards the pedal 41 until the pedal 41 is inserted into the clamping groove 111. The clamping plate 11 strengthens the fixed installation of the pedal 41.

[0054] Reference Figure 8 and Figure 9 An abutment spring 13 is also installed inside the control plate 51. One end of the abutment spring 13 abuts against the clamping plate 11, and the other end of the abutment spring 13 abuts against the bottom of the control groove 512. When the push rod 121 no longer restricts the clamping plate 11, the clamping plate 11 can be retracted into the control plate 51 under the action of the tension of the abutment spring 13.

[0055] Reference Figure 8 and Figure 9 To facilitate the insertion of the foot pedal 41 into the clamping groove 111, a chamfer 113 is provided at the opening of the clamping groove 111.

[0056] Reference Figure 10 and Figure 11The floor slab 3 has a storage groove 35 for the foot pedals 41 to slide into. When the foot pedal frame 4 is in the second use state, some of the foot pedals 41 will enter the storage groove 35. The fixing plate that does not enter the storage groove 35 abuts against the bottom plate 52. When there are more foot pedals 41 entering the storage groove 35, the excess foot pedals 41 can extend out of the storage groove 35.

[0057] Reference Figure 11 and Figure 12 To prevent the pedal 41, which extends out of the storage slot 35, from being difficult to re-enter the storage slot 35, a guide surface 732 is provided on the sliding rod 73. When the pedal 41 slides towards the storage slot 35, the sliding rod 73 retracts into the pedal 41 under the action of the guide surface 732.

[0058] Reference Figure 11 and Figure 13 Several second fixing components 14 are also installed on the mounting bracket 5. The second fixing components 14 include fixing rods 141 and fixing springs 142. A sliding groove 521 for the fixing rods 141 to slide is provided on the end face of the base plate 52 near the foot pedal 41. One end of the fixing spring 142 abuts against the fixing rod 141, and the other end of the fixing spring 142 abuts against the bottom of the sliding groove 521. Under the action of the elastic force of the fixing spring 142, the fixing rod 141 always tends to slide away from the bottom of the sliding groove 521.

[0059] Reference Figure 11 and Figure 13 The foot pedal 41 has a stabilizing groove 413 for inserting the fixing rod 141. When the foot pedal 4 is in the second use state, the fixing rod 141 is aligned with the stabilizing groove 413. At this time, under the action of the spring force of the fixing spring 142, the fixing rod 141 slides towards the stabilizing groove 413 until the fixing rod 141 is inserted into the stabilizing groove 413, thus completing the fixing effect of the foot pedal 41 on the base plate 52.

[0060] Reference Figure 11 and Figure 13 A connecting rod 1411 is provided on the side of the fixed rod 141 away from the pedal 41. A connecting groove 522 for the connecting rod 1411 to slide is provided at the bottom of the moving groove 521. An installation strip 15 is also provided on the side of the base plate 52 away from the pedal 41. The installation strip 15 welds all the connecting rods 1411 together. By pulling the installation strip 15, all the connecting rods 1411 drive the fixed rod 141 to slide towards the bottom of the moving groove 521 until the fixed rod 141 is completely retracted into the base plate 52.

[0061] Reference Figure 11 and Figure 13When the foot pedal 4 is in the second use state, the control panel 12 slides towards the base plate 52, and the clamping plate 11 can slide away from the bottom of the control groove 512. At this time, part of the clamping plate 11 can abut against the end face of the foot pedal 41 away from the base plate 52, thereby enhancing the stability of the foot pedal 41 on the base plate 52 when the foot pedal 4 is in the second use state.

[0062] The implementation principle of a BIM-based prefabricated staircase in this application embodiment is as follows:

[0063] When the staircase is in normal use, the first sliding rod is inserted into the sliding groove 22 and fixed in the sliding groove 22 by the plug rod 71. Then, the foot pedal 41 is adjusted so that the foot pedal 41 is perpendicular to the adjacent foot pedal 41. When the foot pedal 41 is in the first use state, under the action of the spring force of the drive spring 81, the sliding rod 73 can be inserted into the plug groove 511. Finally, the operating plate 12 moves towards the base plate 52. With the cooperation of the push rod 121 and the guide surface 112, the clamping plate 11 can slide away from the control groove 512 until the foot pedal 41 is inserted into the clamping groove 111, thus completing the effect of fixing the foot pedal 41 on the control plate 51 when the foot pedal frame 4 is in the first use state.

[0064] When it is necessary to move the wheeled vehicle on the stairs, the control lever is slid away from the base plate 52. Under the action of the tension spring 13, the clamping plate 11 can be retracted into the control plate 51. Then, the unlocking lever 91 is pressed to retract the sliding rod 73 into the pedal 41. Part of the pedal 41 can be retracted into the storage slot 35. When there are many pedals 41, the excess pedals 41 can extend out of the storage slot 35. The remaining pedals 41 can abut against the base plate 52. Under the action of the spring force of the fixing spring 142, the fixing rod 141 is inserted into the stabilizing slot 413. At the same time, part of the clamping plate 11 can abut against the end face of the pedal 41 away from the base plate 52, thus completing the effect of fixing the pedal 41 to the base plate 52 when the pedal frame 4 is in the second use state.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A BIM-based prefabricated staircase, characterized in that: It includes an upper floor slab (2), a lower floor slab (3), an installation frame (5), and a footrest frame (4). The footrest frame (4) is installed on the installation frame (5), and the installation frame (5) is located between the upper floor slab (2) and the lower floor slab (3). The footrest frame (4) includes several footrests (41), and the footrests (41) are rotatably connected to adjacent footrests (41). The footrest (4) has a first use state and a second use state. When the footrest (4) is in the first use state, the foot pedal (41) is perpendicular to the adjacent foot pedal (41). When the footrest (4) is in the second use state, all the foot pedals (41) are on the same plane. The mounting frame (5) is provided with a first fixing component (7) for fixing the foot pedal (4) when the foot pedal (4) is in the first use state, and the mounting frame (5) is provided with a plurality of second fixing components (14) for fixing the foot pedal (4) when the foot pedal (4) is in the second use state. The mounting frame (5) includes a base plate (52) and two parallel control plates (51). The footrest (4) is disposed between two footrests (41). The footrest (4) also includes a sliding plate (42). The sliding plate (42) is rotatably connected to one of the footrests (41). The first fixing component (7) includes a plug rod (71) and several sliding rods (73). The upper floor slab (2) has a sliding groove (22) for the sliding plate (42) to be inserted. The sliding plate (42) has a fixing groove (421) for the plug rod (71) to be inserted. The sliding rod (73) slides horizontally on the foot pedal (41). The control plate (51) has a plug slot (511) for the sliding rod (73) to be inserted. When the foot pedal (4) is in the first use state, the sliding rod (73) is aligned with the clamping groove (111). The foot pedal (41) is provided with an elastic element (8) to control the sliding rod (73) to slide towards the plug slot (511). The foot pedal (41) is also provided with an unlocking element (9) to control the sliding rod (73) to slide away from the plug slot (511). The unlocking component (9) is an unlocking rod (91) that slides on the pedal (41). The sliding rod (73) is provided with a guide slope (731) for the unlocking rod (91) to abut against and control the sliding rod (73) to slide away from the insertion slot (511). The second fixing component (14) includes a fixing rod (141) and a fixing spring (142). The base plate (52) has a moving groove (521) on the side near the foot pedal (41) for the fixing rod (141) to slide. The upper floor plate (2) has a storage groove (35) for the foot pedal (41) to slide into. The foot pedal (41) has a stabilizing groove (413) for the fixing rod (141) to be inserted. When the foot pedal frame (4) is in the second use state, the foot pedal (41) that has not entered the storage groove (35) abuts against the base plate (52), and the fixing rod (141) is aligned with the stabilizing groove (413). One end of the fixing spring (142) abuts against the fixing rod (141), and the other end of the fixing spring (142) abuts against the bottom of the moving groove (521). The control plate (51) has several clamping plates (11) that slide horizontally. Each clamping plate (11) has a clamping groove (111) for sliding of the foot pedal (41). When the foot pedal (4) is in the first use state, the foot pedal (41) is aligned with the clamping groove (111). The control plate (51) is provided with a contact spring (13) for controlling the clamping plate (11) to slide away from the foot pedal (41). The control plate (51) is provided with an operating plate (12). The clamping plate (11) is provided with a guide surface (112) for the operating plate (12) to contact and control the clamping plate (11) to slide closer to the foot pedal (41).

2. The prefabricated staircase based on BIM according to claim 1, characterized in that: The elastic element (8) is a drive spring (81). The pedal (41) has a sliding groove (411) on the side near the control plate (51) for the sliding plate to slide. One end of the drive spring (81) abuts against the sliding rod (73), and the other end of the drive spring (81) abuts against the bottom of the sliding groove (411).

3. A BIM-based prefabricated staircase according to claim 2, characterized in that: The clamping groove (111) has a chamfer (113) at the opening.

4. A BIM-based prefabricated staircase according to claim 3, characterized in that: When the footrest (4) is in the second use state, several clamping plates (11) abut against the side end face of the footrest (41) away from the base plate (52).

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