CN113338520B

CN113338520B - Assembled suspended ceiling based on BIM

Info

Publication number: CN113338520B
Application number: CN202110780301.0A
Authority: CN
Inventors: 陈志鑫; 陈转香
Original assignee: Shenzhen Qingda Environment Art Design Co ltd
Current assignee: Shenzhen Qingda Environment Art Design Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-08-02
Anticipated expiration: 2041-07-09
Also published as: CN113338520A

Abstract

The utility model relates to an assembled suspended ceiling based on BIM, including the several rows of jib of locating the ceiling, the several main joist of every row of jib bottom is located to the one-to-one, locate main joist and length direction perpendicular to main joist length direction's several secondary joist, locate main joist and secondary joist and be close to several limit fossil fragments in wall body one side department, evenly locate several decorative boards between main joist and the secondary joist, limit fossil fragments bottom surface sliding connection has fossil fragments movable block, limit fossil fragments are equipped with the movable block mobile device that drives fossil fragments movable block along limit fossil fragments length direction removal, fossil fragments movable block rotates and is connected with the cleaning brush-holder stud, the cleaning brush-holder stud clears up the decorative board through the rotation of self, fossil fragments movable block is equipped with and drives cleaning brush-holder stud pivoted brush-holder stud rotating device, possess fossil fragments when removing, the cleaning brush-holder stud can carry out the effect of clearing up to the decorative board.

Description

Assembled suspended ceiling based on BIM

Technical Field

The application relates to the field of house ornamentation structure, especially relates to an assembled suspended ceiling based on BIM.

Background

The furred ceiling is suitable for the higher room of floor height, mainly plays the decorative effect for room inner space looks can not too spaciously, carries out arranging of relevant circuit in the furred ceiling of also being convenient for, and the furred ceiling also can play certain heat preservation syllable-dividing effect simultaneously. In the information-based era, the BIM technology is used, namely, the three-dimensional model is built for the suspended ceiling structure, so that the building information sharing can be conveniently and clearly carried out by a design unit, a construction unit, a supervision unit and an owner unit, the accuracy of building information transmission is improved, and the improvement of the construction efficiency is facilitated.

The jib of current furred ceiling more on fixing the ceiling through the inflation screw is as supporting the basis, then connects long banding fossil fragments and jib bottom, then passes through the screw with corresponding decorative board or joint spare is fixed on fossil fragments.

To the correlation technique among the above-mentioned, the inventor thinks that the decorative board surface of general furred ceiling needs to be cleared up after the time is longer, and because the decorative board possesses certain height during the clearance, has the comparatively inconvenient defect of clearance of decorative board.

Disclosure of Invention

In order to facilitate clearing up the decorative board, this application provides an assembled suspended ceiling based on BIM.

The application provides an assembled suspended ceiling adopts following technical scheme based on BIM:

the utility model provides an assembled suspended ceiling based on BIM, includes several rows of jib, the one-to-one that locates the ceiling and locates the several main joist of every row of jib bottom, locate main joist and length direction perpendicular to main joist length direction's several secondary joist, the one-to-one respectively is close to several limit fossil fragments that main joist and secondary joist are close to department in wall body one side department, evenly locate several decorative boards between main joist and the secondary joist, limit fossil fragments bottom surface sliding connection has fossil fragments movable block, and limit fossil fragments are equipped with the movable block mobile device that drives fossil fragments movable block and remove along limit fossil fragments length direction, and fossil fragments movable block rotation is connected with the cleaning brush-holder stud, and the cleaning brush-holder stud clears up the decorative board through self rotation, and fossil fragments movable block is equipped with the brush-holder stud rotating device that drives cleaning brush-holder stud pivoted, movable block mobile device includes the reciprocal lead screw that rotates and connect in limit fossil fragments inside, locates limit fossil fragments and make reciprocal lead screw motor that lead screw rotated, Threaded connection just connects in the screw rod piece of reciprocal lead screw and fossil fragments movable block, locates the guide bar of limit fossil fragments and wear to locate the screw rod piece, clean the brush-holder stud including locating the connecting rod of fossil fragments movable block, rotate and connect in two end brush-holder studs at connecting rod both ends, the end brush-holder stud rotates around self axis, the end brush-holder stud laminating is in the decorative board surface, connecting rod length direction is on a parallel with fossil fragments movable block moving direction, brush-holder stud rotating device includes that the one-to-one is coaxial respectively locates two brush-holder stud gears of two end brush-holder stud rotation axis departments, the drive gear of a coaxial root end brush-holder stud of locating, mesh in the fossil fragments rack that drives the gear and locate limit fossil fragments, fossil fragments movable block can be dismantled and be connected with and accept the box, accepts the box and is located under two end brush-holder studs, accepts box both sides upper surface subsides in the decorative board surface.

By adopting the technical scheme, the keel moving block is moved to drive the cleaning brush rod to move synchronously, and the cleaning brush rod rotates simultaneously, so that the lower surface of the decorative plate can be cleaned by the cleaning brush rod without manually cleaning the decorative plate with higher height, which is more convenient, the screw motor drives the reciprocating screw rod to rotate, so that the screw rod block can synchronously reciprocate, the keel moving block can synchronously reciprocate, the cleaning brush rod can be driven to be attached to the decorative plate to reciprocate, so that the decorative plate can be cleaned more fully, the brush rods at two ends can be attached to the lower surface of the decorative plate to move, the keel moving block can clean the lower surfaces of all decorative plates without being too close to the keel, and the existence of the brush rod gear can drive the gear to rotate synchronously while the keel moving block moves, make a brush-holder stud gear revolve, make then two engaged with brush-holder stud gears can synchronous rotation to drive two end brush-holder studs and carry out synchronous rotation, need not additionally set up the power supply for the rotation of end brush-holder stud again, make when the end brush-holder stud cleans, dust and some debris can drop in the box that holds, make the dust be difficult for floating at will in the room, reduce the decorative board and clean the influence in the room.

Optionally, the limit fossil fragments are located fossil fragments rack one end department and are equipped with corner pole, and corner pole one side is equipped with the inserted bar, and the corner pole is equipped with to drive the inserted bar that the inserted bar removed along vertical direction and erects to move the device, and fossil fragments move the piece and can follow self moving direction and cup joint in the inserted bar, and fossil fragments move the piece and be equipped with and can make the screw rod piece remove with the fossil fragments move the device that tears open of being connected between the piece.

Through adopting above-mentioned technical scheme for fossil fragments movable block cleans to be accomplished the back and moves and be close to in the male pin and cup joint in the male pin, then the male pin moves down, makes fossil fragments movable block move down in the lump, makes and accepts the box and moves down, so that clears away the inside dust debris of accepting the box.

Optionally, the insert rod vertically-moving device comprises two belt sheaves rotatably connected in the wall angle rod, a transmission belt in transmission connection with the two belt sheaves, a sheave motor arranged on the wall angle rod and driving one belt sheave to rotate, and a belt block arranged on the transmission belt and connected to the insert rod.

Through adopting above-mentioned technical scheme, the sheave motor drives the belt sheave and rotates for driving belt transmits, makes the belt piece can be driven and removes, makes the inserted bar can stably remove.

Optionally, the disconnecting device includes an exposed rod disposed on the keel moving block and capable of being inserted into the screw block, an inner rod inserted into the exposed rod, an ejection block slidably connected to an inner wall of the exposed rod, an insertion block slidably connected to the exposed rod and capable of being ejected by the ejection block and inserted into the screw block, and a compression spring disposed on the exposed rod and forcing the inner rod to move toward the keel moving block so that the ejection block abuts against the insertion block, one end of the insertion block inserted into the keel moving block and one end of the insertion block abutting against the ejection block are both spherical bodies, and the inner rod when the inserted rod is inserted into the keel moving block, forces the compression spring to be compressed so that the ejection block is far away from the insertion block.

Through adopting above-mentioned technical scheme, cup joint in the inserted bar at fossil fragments movable block after, the inserted bar can butt in interior pole for interior pole moves up in order to compress compression spring, makes ejecting piece no longer support tightly the inserted block, then the sheave motor starts, makes the fossil fragments movable block be inserted the pole and moves down, forces the inserted block retraction to enter into to expose in the pole, makes the pole that exposes keep away from the screw piece, so that fossil fragments movable block is moved down by the drive of inserted bar smoothly.

Optionally, one end of the insertion block located in the exposed rod is provided with an anti-slip ring block, and the anti-slip ring block can abut against the inner wall of the exposed rod.

By adopting the technical scheme, the plug-in block is not easy to drop from the exposed rod after the exposed rod is far away from the screw rod block.

Optionally, a limiting ring block is arranged in the exposed rod, the inner rod is connected to the limiting ring block in a sliding mode, an anti-rotation groove is formed in the outer wall of the inner rod, and an anti-rotation block connected to the inner wall of the anti-rotation groove in a sliding mode along the moving direction of the inner rod is arranged on the limiting ring block.

By adopting the technical scheme, the inner rod is not easy to shake randomly in the exposed rod, and meanwhile, the inner rod is not easy to rotate, so that the ejection block can be well abutted against the insertion block.

In summary, the present application includes at least one of the following benefits:

1. the keel moving block is moved to drive the cleaning brush rod to move synchronously, and meanwhile, the cleaning brush rod rotates, so that the lower surface of the decorative plate can be cleaned by the cleaning brush rod, the decorative plate with a higher position height does not need to be cleaned manually, and the cleaning brush rod is more convenient;

2. make fossil fragments movable block clean the completion after the removal be close to in the male pin and cup joint in the male pin, then the male pin moves down for fossil fragments movable block can move down in the lump, makes and accepts the box and moves down, so that clear away the inside dust debris of accepting the box.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present application;

FIG. 2 is a schematic structural view showing a side keel provided with a screw groove in a vertical cross-sectional view to show the insides of the screw groove and a motor groove, a screw block in a cross-sectional view to show the insides of the screw groove, an exposed rod in a cross-sectional view to show the insides of the rod inner grooves, and a keel moving block in a cross-sectional view to show the insides of the exposed rod hole and the insertion rod hole;

fig. 3 is a sectional view of the receiving box connected to one end of the keel moving block, and a bottom view of the keel moving block is schematically shown;

FIG. 4 is an enlarged view at A in FIG. 2;

FIG. 5 is a schematic view of the bottom end of the corner post, with the bottom end of the groove sealing plate partially cut away to show the inside of the belt groove.

Description of reference numerals: 1. a boom; 11. a rotation prevention block; 12. a compression spring; 13. a screw channel; 14. a motor slot; 15. a belt groove; 16. a groove sealing plate; 17. a connecting plate slot; 19. an exposed rod hole; 2. a main keel; 21. a drive belt; 22. a sheave motor; 23. a belt block; 24. an exposure rod; 25. ejecting a block; 26. an insertion block; 27. an inner rod; 28. a limit ring block; 29. an anti-rotation slot; 3. a secondary keel; 31. a connecting rod; 32. an end brush bar; 33. driving the gear; 34. a receiving box; 37. wall corner posts; 38. an insertion rod; 39. a belt sheave; 4. a side keel; 41. a decorative plate; 42. a keel moving block; 43. cleaning the brush rod; 44. a reciprocating screw; 45. a screw motor; 46. a screw block; 47. a guide bar; 48. a brush bar gear; 49. a keel rack; 5. an insertion rod hole; 51. a rod inner groove; 52. a plug block groove; 53. a screw block groove; 54. anti-slip ring block.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses assembled suspended ceiling based on BIM refers to FIG. 1, include through expansion bolts fixed connection in the ceiling and be vertical several rows of jib 1, and jib 1 of whole row evenly arranges along ceiling width direction, and every row jib 1 evenly sets up several along ceiling length direction. Every 1 bottom of one row jib is connected with through the screw can be dismantled and is the horizontally main joist 2 with the root, 2 length direction of main joist is on a parallel with ceiling length direction, 2 below of whole main joist can be dismantled through the screw and be connected with several and be horizontally

secondary joist

3, 3 length direction of secondary joist perpendicular to 2 length direction of main joist, 3 lower surfaces of secondary joist flush in the main joist lower surface, 2 length direction both ends of whole main joist and 3 length direction both ends of whole secondary joist all can be dismantled through the screw and be connected with and be horizontally limit fossil fragments 4, limit fossil fragments 4 are totally four and equally divide into two sets ofly, a set of limit fossil fragments 4 length direction is on a parallel with ceiling width direction, two sets of limit fossil fragments 4 are mutually perpendicular, four limit fossil fragments 4 one-to-ones are laminated in the upper portion of four vertical wall surfaces respectively. Horizontal decorative plates 41 are arranged between each main keel 2 and each secondary keel 3, and the decorative plates 41 can be detachably connected through screws or clamping pieces.

Referring to fig. 2, a keel moving block 42 is slidably connected to the lower surface of one long side keel 4, a screw groove 13 is formed in the lower surface of the side keel 4, the length direction of the screw groove 13 is parallel to the length direction of the long side keel 4, and a motor groove 14 is formed in one end of the screw groove 13 in the length direction. Install the movable block mobile device that drives fossil fragments movable block 42 and remove along 4 length direction of limit fossil fragments in the limit fossil fragments 4, movable block mobile device connects in 13 inner walls of screw groove and is the reciprocal lead screw 44 of horizontally including rotating, reciprocal lead screw 44 length direction is on a parallel with the length direction of screw groove 13, can dismantle through the screw in the motor groove 14 and be connected with screw motor 45, the coaxial fixed connection of screw motor 45 output shaft is in reciprocal lead screw 44, reciprocal lead screw 44 wears to establish and threaded connection has screw block 46, screw groove 13 inner wall fixedly connected with is horizontally guide bar 47, guide bar 47 length direction is on a parallel with 13 length direction in screw groove, guide bar 47 wears to establish and sliding connection in screw block 46, fossil fragments movable block 42 is installed in screw block 46 lower surface department.

Referring to fig. 2 and 3, fossil fragments movable block 42 is towards one side department installation in main joist 2 and is cleaned brush-holder stud 43, clean brush-holder stud 43 include fixed connection in fossil fragments movable block 42 towards the vertical side in main joist 2 and be vertical connecting rod 31, connecting rod 31 length direction is on a parallel with 4 length direction of limit fossil fragments that are close to, connecting rod 31 deviates from the length direction both ends of fossil fragments movable block 42 and all rotates to be connected with and is the horizontally end brush-holder stud 32, end brush-holder stud 32 rotates around self axis and rotation plane is vertical, end brush-holder stud 32 length direction is on a parallel with 4 length direction of limit fossil fragments that are close to, the dense brush hair in end brush-holder stud 32 surface, the brush hair of end brush-holder stud 32 contacts in decorative board 41 lower surface. In another embodiment, the long side keel without the screw groove 13 may be provided with a corresponding slider, so that the end brush rod 32 can be rotatably connected with the slider, and both ends of the end brush rod 32 can be supported when moving. The keel moving block 42 is provided with a brush rod rotating device for driving the cleaning brush rod 43 to rotate.

Referring to fig. 3, the brush bar rotating means includes a driving gear 33 coaxially and fixedly connected to one end of the end brush bar 32 near one end of the keel moving block 42, the driving gear 33 being located right below the side keel 4 where the screw groove 13 is formed. The lower surface of the side keel 4 is fixedly connected with a horizontal keel rack 49, the length direction of the keel rack 49 is parallel to the length direction of the screw groove 13, and the keel rack 49 is meshed with the upper part of the driving gear 33. The two end brush rods 32 are coaxially and fixedly connected with brush rod gears 48, and the two brush rod gears 48 are meshed.

Screw motor 45 communicates can drive reciprocal lead screw 44 in external power source and rotate, make screw block 46 can remove along screw groove 13 length direction, make fossil fragments movable block 42 remove in the lump, make brush-holder stud gear 48 remove in the lump, because fossil fragments rack 49 is fixed, make brush-holder stud gear 48 rotate, make an end brush-holder stud 32 driven, then brush-holder stud gear 48 of an end brush-holder stud 32 is driven and is rotated, make two brush-holder stud gears 48 rotate in step, make two end brush-holder studs 32 carry out antiport, in the time of the end brush-holder stud 32 that is on a parallel with ceiling width direction at length direction removes along ceiling length direction, two end brush-holder studs 32 can clean decorative board 41 lower surface better.

Referring to fig. 2 and 4, the lower surface of the length direction one end of the side keel 4 provided with the screw groove 13 is detachably connected with a vertical corner rod 37 through a screw, the corner rod 37 is attached to a corner, the bottom end of the corner rod 37 abuts against the ground in a room, and the connecting rod 31 is always spaced from the corner rod 37 when moving. The side of the corner bar 37 facing the keel block 42 is fitted with a horizontal insertion bar 38. The keel moving block 42 is provided with a connecting and disconnecting device which can enable the screw block 46 to be disconnected with the keel moving block 42, the connecting and disconnecting device comprises an exposed rod 24 which is fixedly connected to the upper surface of the keel moving block 42 and vertical, the upper surface of the keel moving block 42 is provided with an exposed rod hole 19 which is vertical, the horizontal section of the exposed rod hole 19 is rectangular, and the vertical outer wall of the exposed rod 24 is fixedly connected to the vertical inner wall of the exposed rod hole 19. The keel moving block 42 is provided with a horizontal insertion rod hole 5 facing the vertical side surface of the insertion rod 38, the length direction of the insertion rod hole 5 is parallel to the length direction of the screw rod groove 13, and the bottom end of the exposed rod hole 19 is communicated with the upper part of the length midpoint of the insertion rod hole 5. The vertical section of the insertion rod hole 5 is rectangular frame shape, the insertion rod 38 is closely connected to the insertion rod hole 5 in a sliding manner along the length direction of the insertion rod 38, one end of the insertion rod 38 positioned in the insertion rod hole 5 is obliquely arranged, and the inclined surface of the insertion rod 38 faces to the inner wall of the upper part of the insertion rod hole 5.

Referring to fig. 2 and 4, the bottom end of the exposed rod 24 is flush to be inserted into the upper surface inside the rod hole 5, the bottom end of the exposed rod 24 is provided with an inner vertical rod groove 51, the upper end of the inner rod groove 51 is fixedly connected with a vertical inner wall to form a horizontal limit ring block 28, the lower surface of the limit ring block 28 is provided with a round hole in a penetrating manner, the inner wall of the round hole of the limit ring block 28 is slidably connected with an inner vertical rod 27 along the vertical direction, the axis of the inner rod 27 is the same as the vertical central line of the rod groove 51, the bottom end of the inner rod 27 is a spherical body, and the bottom end of the inner rod 27 can be abutted against the inner wall of the horizontal bottom of the inserted rod hole 5. When the insert rod 38 is inserted into the insert rod hole 5, and is about to contact the spherical bottom end of the inner rod 27, the horizontal upper surface of the insert rod 38 abuts against the horizontal upper inner wall of the insert rod hole 5. The outer wall of the circumference of the inner rod 27 is provided with a vertical anti-rotation groove 29, the upper surface of the limit ring block 28 is fixedly connected with an anti-rotation block 11, one end of the anti-rotation block is positioned in the anti-rotation groove 29, and the vertical inner wall of the anti-rotation groove 29 is connected with the vertical outer wall of the anti-rotation block 11 in a sliding mode along the vertical direction. The outer wall of the circumference of the inner rod 27 is uniformly and fixedly connected with two ejection blocks 25 around the axis of the inner rod, the ejection blocks 25 are positioned below the limit ring block 28, and the bottom ends of the ejection blocks 25 are arranged in an inclined plane. The rod body of the exposed rod 24 outside the exposed rod hole 19 is provided with two insertion block grooves 52, the two insertion block grooves 52 correspond to each ejection block 25 one by one, each insertion block groove 52 is connected with an insertion block 26 in a sliding manner along the radial direction of the exposed rod 24, the inclined surface of the lower end of the ejection block 25 can abut against the insertion block 26 to force the insertion block 26 to be exposed out of the exposed rod 24, and one end of the insertion block 26 outside the exposed rod 24 and one end of the insertion block 26 abutting against the ejection block 25 are spherical bodies. When the plug block 26 abuts against the outer circumferential wall of the inner rod 27, the end of the plug block 26 away from the inner rod 27 just enters the plug block groove 52 completely.

Referring to fig. 2 and 4, the compression spring 12 is fixedly connected to the upper end of the inner rod 27, the upper end of the compression spring 12 is fixedly connected to the horizontal inner wall of the upper end of the rod inner groove 51, and the compression spring 12 forces the inner rod 27 to move downwards along the vertical direction, so that the ejection block 25 moves downwards, and the ejection block 25 ejects the insertion block 26 out of the insertion block groove 52. The portion of the insertion block 26 located in the rod inner groove 51 is fixedly connected with an anti-slip ring block 54, the anti-slip ring block 54 can be attached to the vertical inner wall of the rod inner groove 51, and when the anti-slip ring block 54 abuts against the inner wall of the rod inner groove 51, the spherical end of the insertion block 26 far away from the inner rod 27 is just completely exposed out of the insertion block groove 52. The lower surface of the screw block 46 is provided with a vertical screw block groove 53, the exposed rod 24 is slidably connected to the vertical inner wall of the screw block groove 53 along the vertical direction, and the spherical end of the plug block 26 can be plugged in the corresponding position of the vertical inner wall of the screw block groove 53 when the plug block 26 is ejected by the ejection block 25.

Referring to fig. 2 and 5, the belt groove 15 has been seted up towards the vertical side of fossil fragments movable block 42 to corner pole 37, belt groove 15 is vertical, it erects the device that moves to install the inserted bar that drives inserted bar 38 and remove along vertical direction in belt groove 15, the inserted bar erects the device and connects two belt sheaves 39 in belt groove 15 inner wall including rotating, two belt sheave 39 transmissions are connected with and are vertical drive belt 21, the vertical outer wall of corner pole 37 can dismantle through the screw and be connected with sheave motor 22, the coaxial fixed connection in the low belt sheave 39 in position of sheave motor 22 output shaft. Fixedly connected with of 15 opening inner walls in race groove department is vertical groove sealing plate 16, and groove sealing plate 16 seals race groove 15, and groove sealing plate 16 has been offered towards the vertical side of fossil fragments movable block 42 and has been vertical connecting plate groove 17, and connecting plate groove 17 horizontal width is less for drive belt 21 is difficult for too much exposing. The vertical side face of the driving belt 21 facing the slot sealing plate 16 is fixedly connected with a vertical belt block 23, and the belt block 23 is connected to the vertical inner wall of the connecting plate slot 17 in a sliding mode along the vertical direction. The strap block 23 is fixedly attached to the end of the insertion rod 38 distal from the keel block 42.

Referring to fig. 2 and 3, the side of the keel moving block 42, on which the connecting rod 31 is disposed, is detachably connected with a horizontal receiving box 34 through a screw, the receiving box 34 is located right below the two end brush rods 32, the length direction of the receiving box 34 is parallel to the length direction of the end brush rods 32, and the two sides of the receiving box 34 in the length direction are close to the lower surface of the decorative plate 41.

When the keel block 42 is moved toward the insertion rod 38 and the insertion rod 38 is inserted into the insertion rod hole 5, the inner rod 27 is forced to move upward by the slope of the insertion rod 38, and when the insertion rod 38 is completely inserted into the insertion rod hole 5, the bottom end of the inner rod 27 abuts against the horizontal upper surface of the insertion rod 38. The inner rod 27 moves upwards to enable the ejection block 25 not to abut against the insertion block 26, at the moment, the keel moving block 42 is driven to move downwards, the exposed rod 24 is separated from the screw block groove 53, the insertion block 26 retracts into the exposed rod 24, the exposed rod 24 moves downwards smoothly, and when the keel moving block 42 moves downwards to a proper height, the keel moving block 42 can be taken down from the insertion rod 38 to clean the end brush rod 32 and the bearing box 34.

The principle is implemented to assembled suspended ceiling based on BIM of this application embodiment: the screw motor 45 drives the reciprocating screw 44 to rotate, so that the keel moving block 42 moves along the length direction of the ceiling, and meanwhile, the end brush rod 32 is driven to rotate due to the existence of the brush rod gear 48, the driving gear 33 and the keel rack 49, so as to clean the lower surface of the decorative plate 41.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an assembled suspended ceiling based on BIM, including several rows of jib (1) of locating the ceiling, several main joist (2) of every row of jib (1) bottom are located to the one-to-one, locate main joist (2) and length direction perpendicular to main joist (2) length direction's several secondary joist (3), several limit fossil fragments (4) of main joist (2) length direction both ends and secondary joist (3) length direction both ends are located respectively to the one-to-one, evenly locate several decorative board (41) between main joist (2) and secondary joist (3), its characterized in that: limit fossil fragments (4) bottom surface sliding connection has fossil fragments movable block (42), and limit fossil fragments (4) are equipped with and drive fossil fragments movable block (42) moving block mobile device along limit fossil fragments (4) length direction removal, and fossil fragments movable block (42) rotate and are connected with and clean brush-holder stud (43), clean brush-holder stud (43) and clear up decorative board (41) through the rotation of self, and fossil fragments movable block (42) are equipped with and drive and clean brush-holder stud rotating device (43) pivoted brush-holder stud rotating device, movable block mobile device is including rotating reciprocating lead screw (44) of connecting in limit fossil fragments (4) inside, locate limit fossil fragments (4) and make reciprocating lead screw (44) pivoted screw motor (45), threaded connection in reciprocating lead screw (44) and connect in screw block (46) of fossil fragments movable block (42), locate limit fossil fragments (4) and wear to locate guide bar (47) of screw block (46), clean brush-holder stud (43) including connecting rod (31) of locating fossil fragments movable block (42), Rotate two end brush-holder stud (32) of connecting rod (31) both ends, end brush-holder stud (32) rotate around self axis, end brush-holder stud (32) laminate in decorative board (41) surface, connecting rod (31) length direction is on a parallel with fossil fragments movable block (42) moving direction, brush-holder stud rotating device includes that one-to-one is coaxial respectively to locate two brush-holder stud gears (48) of two end brush-holder stud (32) rotating axis departments, coaxial drive gear (33) of locating an end brush-holder stud (32), mesh in drive gear (33) and locate fossil fragments rack (49) of limit fossil fragments (4), fossil fragments movable block (42) can be dismantled and be connected with and hold box (34), hold box (34) and be located under two end brush-holder studs (32), hold box (34) both sides upper surface subsides in decorative board (41) surface, limit fossil fragments (4) are located fossil fragments rack (49) one end department and are equipped with wall angle pole (37), an inserting rod (38) is arranged on one side of the wall angle rod (37), the wall angle rod (37) is provided with an inserting rod vertical moving device which drives the inserting rod (38) to move along the vertical direction, the keel moving block (42) can be sleeved on the inserting rod (38) along the moving direction, the keel moving block (42) is provided with a disconnecting device which can enable the screw rod block (46) to be disconnected with the keel moving block (42), the disconnecting device comprises an exposed rod (24) which is arranged on the keel moving block (42) and can be inserted into the screw rod block (46), an inner rod (27) which is inserted into the exposed rod, an ejecting block (25) which is slidably connected with the inner wall of the exposed rod (24), an inserting block (26) which is slidably connected with the exposed rod (24) and can be ejected out by the ejecting block (25) and is inserted into the screw rod block (46), and a compression spring (12) which is arranged on the exposed rod (24) and forces the inner rod (27) to move towards the keel moving block (42) so that the ejecting block (25) is tightly abutted against the inserting block (26), the end, inserted into the keel moving block (42), of the insertion block (26) and the end, abutted against the ejection block (25), of the insertion block (26) are spherical bodies, and the inner rod (27) forces the compression spring (12) to be compressed when the insertion rod (38) is inserted into the keel moving block (42), so that the ejection block (25) is far away from the insertion block (26).

2. The BIM-based fabricated suspended ceiling of claim 1, wherein: the insert rod vertically-moving device comprises two belt sheaves (39) rotatably connected in a wall angle rod (37), a transmission belt (21) in transmission connection with the two belt sheaves (39), a sheave motor (22) arranged on the wall angle rod (37) and driving one belt sheave (39) to rotate, and a belt block (23) arranged on the transmission belt (21) and connected to the insert rod (38).

3. The BIM-based fabricated suspended ceiling of claim 1, wherein: one end of the insertion block (26) positioned in the exposed rod (24) is provided with an anti-slip ring block (54), and the anti-slip ring block (54) can abut against the inner wall of the exposed rod (24).

4. The BIM-based fabricated suspended ceiling of claim 1, wherein: be equipped with spacing ring piece (28) in exposing pole (24), interior pole (27) sliding connection is in spacing ring piece (28), and interior pole (27) outer wall has seted up anti-rotation groove (29), and spacing ring piece (28) are equipped with along interior pole (27) moving direction sliding connection in anti-rotation groove (29) inner wall prevent changeing piece (11).