Steel structure factory building framework

Abstract

The application discloses a steel structure factory building framework, relates to the technical field of steel structure factory building, and comprises a base frame, a roof board arranged on the top of the base frame, a transmission assembly, a linkage assembly and a triggering assembly, a protective cover is rotationally connected to the roof board, the protective cover rotationally has a first stroke and a second stroke in sequence, a ventilation opening is formed in the roof board, a glass skylight is horizontally slidably connected in the ventilation opening, a cleaning plate is horizontally slidably connected to the bottom of the roof board, the transmission assembly comprises two symmetrically arranged transmission mechanisms, one of the transmission mechanisms is used for driving the protective cover to rotate forward, and the other transmission mechanism is used for driving the protective cover to rotate reversely, the linkage assembly is driven by the forward or reverse rotation of the protective cover to make the cleaning plate reciprocatingly slide and clean the glass skylight, and when the reciprocating cleaning frequency of the cleaning plate reaches a preset value during the second stroke of the protective cover, the glass skylight is horizontally slid to ventilate through the triggering assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure plant, in particular to a steel structure plant framework. BACKGROUND

[0002] The nuclear power plant mainly includes two parts of the nuclear island and the conventional island, wherein the conventional island buildings such as the steam turbine house, the pump house, the warehouse, the office building and the living house etc. adopt the steel structure, and the steel structure plant mainly refers to the main load-bearing components composed of steel, including the steel column, the steel beam, the steel structure foundation, the steel roof truss, the steel roof, and the steel structure wall which can also adopt the brick wall maintenance. The roof of the nuclear power plant is usually provided with adjustable glass skylights to achieve the functions of ventilation and lighting.

[0003] For example, the Chinese patent with the publication number CN112727171A and the name of "a steel structure plant framework" includes a first stand column, a horizontal beam, a first connecting seat, a damping fixing seat, a second stand column, an inclined beam, a purlin, an adjusting fixing seat, a skylight, a first longitudinal beam, a second longitudinal beam and an adjusting mechanism. The first connecting seat is fixed at the top of the first stand column, and the damping fixing seat is fixed at the bottom of the first stand column. The horizontal beam is fixedly connected with the first stand column at both ends. The second stand column is fixedly connected with the horizontal beam at one end. The second longitudinal beam is connected with the first connecting seat at both ends. The inclined beam is movably connected with the first connecting seat and the second stand column at both ends, respectively. The adjusting fixing seat is fixed on the inclined beam. The purlin is fixedly connected with the adjusting fixing seat. The first longitudinal beam is fixedly connected with the top end of the second stand column at both ends. The adjusting mechanism is fixed on the horizontal beam. The present application is provided with an adjustable skylight, which can control the opening and closing size of the skylight according to the needs, and is provided with an adjusting mechanism, which can adjust the angle of the inclined beam according to the needs, so as to raise or lower the roof to adapt to the wind resistance.

[0004] Although the steel structure plant framework in the above patent is practical and convenient, it still has some disadvantages. In the nuclear power plant, when the glass skylight on the roof is used for lighting, the sunlight is too strong and the sunlight is too glaring, which affects the normal work of workers and also causes the temperature in the nuclear power plant to rise. However, in the process of construction and production, the interior of the plant needs to be cooled and smoke removed, which is difficult to balance cooling and shading. In addition, too much smoke adheres to the glass skylight, which is too high to clean the glass skylight, which easily affects the lighting effect inside the nuclear power plant. SUMMARY

[0005] The purpose of the present application is to provide a steel structure plant framework to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: the steel structure factory building framework, including the base frame, the roof plate arranged on the top of the base frame, the transmission assembly, the linkage assembly and the trigger assembly, the roof plate is rotatably connected with a protective cover, the protective cover has a first stroke and a second stroke in turn in the process of rotation, a ventilation opening is formed in the roof plate, a glass skylight is horizontally slidably connected in the ventilation opening, a cleaning plate is horizontally slidably connected at the bottom of the roof plate, the transmission assembly includes two symmetrical transmission mechanisms, and one of the transmission mechanisms is used for driving the protective cover to rotate forward, and the other transmission mechanism is used for driving the protective cover to rotate reversely, the linkage assembly is driven by the protective cover to rotate forward or reversely to make the cleaning plate reciprocate to clean the glass skylight, when the cleaning plate reciprocates to clean the glass skylight to the preset value in the process of the protective cover rotating the second stroke, the glass skylight is horizontally slidably connected by the trigger assembly to ventilate.

[0007] Further, the two transmission mechanisms each include a rotating shaft, a first fixed block, a second fixed block, a concave block, a first gear body, a first rack meshing with the first gear body, a plug plate and a connecting plate, the rotating shaft is arranged in the protective cover, the first gear body is coaxially fixedly connected to one end of the rotating shaft, the concave block and the second fixed block are fixedly connected to the roof plate, the rotating shaft is rotatably connected with the concave block, the first fixed block is arranged on the side of the concave block facing the second fixed block, the connecting plate is slidably connected in the second fixed block, the plug plate is horizontally arranged on the side of the connecting plate facing the first fixed block, the plug plate is insertedly matched with the first fixed block, the bottom of the plug plate is abuttingly matched with the peripheral surface of the rotating shaft, a positioning piece is arranged between the plug plate and the first fixed block, a first elastic element is arranged between one end of the first rack and the connecting plate, and a connecting bracket is arranged between the two first racks.

[0008] Further, the positioning piece includes a plug rod, an abutting block and a connecting block, the plug rod is vertically slidably connected in the first fixed block, the bottom end of the plug rod is obliquely arranged towards the abutting block, the abutting block is slidably abuttingly matched with the bottom end of the plug rod, the top end of the plug rod is insertedly matched with the plug plate, the connecting block is sleeved on the plug rod, the bottom of the connecting block is abuttingly matched with the top of the roof plate, a connecting rod is arranged between one side of the abutting block and one side of the rack.

[0009] Further, a reset spring is arranged between the top of the connecting block and the bottom of the first fixed block, and the reset spring is sleeved on the plug rod.

[0010] Further, the linkage assembly comprises two first bevel gears, two second bevel gears, two first rotating rods, two transmission belts and a second rotating rod, the two first bevel gears are fixedly connected with the other ends of the two rotating shafts coaxially in a one-to-one correspondence, the two second bevel gears are connected with the two first bevel gears in a one-to-one correspondence, the two first rotating rods are fixedly connected with the bottom ends of the two second bevel gears coaxially respectively, the second rotating rod is rotatably connected in the roof plate, and the bottom of the second rotating rod is fixedly connected with a cam, one of the first rotating rods and the second rotating rod are connected through one of the transmission belts, the other of the first rotating rods and the second rotating rod are connected through the other transmission belt, and the cam is in abutting fit with one side of the cleaning plate.

[0011] Further, two cross beams are symmetrically arranged on the base frame, two longitudinal beams are symmetrically arranged between the two cross beams, and a second elastic element is arranged between the side of the cleaning plate, away from the cam, and the longitudinal beam, away from the cam.

[0012] Further, the trigger assembly comprises a pawl, a ratchet wheel meshing with the pawl, a fourth rotating rod, a second sliding block, a second rack, a second gear body meshing with the second rack, a first sliding block and a third rotating rod, the pawl is rotatably connected on one side of the cleaning plate, the fourth rotating rod is rotatably connected in the roof plate, the second sliding block is vertically slidably sleeved on the fourth rotating rod, the ratchet wheel is fixedly connected coaxially at the bottom end of the fourth rotating rod, one side of the second rack is fixedly connected with the second sliding block, the first sliding block is fixedly connected on one side of the glass skylight, the second gear body is rotatably connected in the roof plate, the third rotating rod is coaxially connected with one end of the second gear body, and the first sliding block is horizontally slidably sleeved on the third rotating rod.

[0013] Further, two guide rails are symmetrically arranged between the two longitudinal beams, and two pulleys are symmetrically arranged at the bottom of the cleaning plate and slidably connected with the two guide rails in a one-to-one correspondence.

[0014] Compared with the prior art, the present application has the beneficial effects that when light is needed, the protective cover can be rotated towards the direction away from the sun through one of the transmission mechanisms, so that sunlight can be shone into the nuclear power plant room, and the glass skylight can be cleaned through the linkage assembly, so as to improve the lighting effect, if it is required to avoid sunlight from shining into the nuclear power plant room and to avoid the temperature rise in the plant room under the condition of ventilation, the protective cover can be rotated towards the sun through the other transmission mechanism, so that the protective cover blocks sunlight from shining into the plant room, and the glass skylight can be driven to slide through the trigger assembly in the second stroke of the rotation of the protective cover, so that heat dissipation and smoke dissipation can be realized, and the flow of ventilation can also be adjusted according to the angle of rotation of the protective cover, so that the balance between heat dissipation and sunshade is realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0017] Figure 2 This is a top view of the overall structure provided in an embodiment of the present invention;

[0018] Figure 3 for Figure 2 Sectional view at point AA;

[0019] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the linkage component provided in an embodiment of the present invention;

[0021] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0022] Figure 7 for Figure 5 Enlarged view of point D in the middle;

[0023] Figure 8 This is a schematic diagram of the transmission assembly provided in an embodiment of the present invention;

[0024] Figure 9 for Figure 8 Enlarged view at point E in the middle;

[0025] Figure 10 for Figure 8 Enlarged view of point F in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1. Base frame; 2. Roof panel; 3. Longitudinal beam; 4. Protective cover; 5. Cleaning plate; 6. Rotating shaft; 7. First gear body; 8. First rack; 9. Connecting plate; 10. First elastic element; 11. Abutment block; 12. Connecting rod; 13. Insert plate; 14. First fixing block; 15. Insert rod; 16. Connecting block; 17. Return spring; 18. Concave block; 19. First bevel gear; 20. Second bevel gear; 21. First rotating rod; 22. Second rotating rod; 23. Transmission belt; 24. Cam; 25. Pawl; 26. Ratchet; 27. Fourth rotating rod; 28. Second slider; 29. ​​Second rack; 30. Second gear body; 31. First slider; 32. Third rotating rod; 33. Second elastic element; 34. Connecting bracket; 35. Crossbeam; 36. Second fixing block; 37. Guide groove; 38. Glass skylight; 39. Guide rail. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Please see Figures 1-10 The present invention provides a technical solution as follows: The steel structure factory frame includes a base frame 1, a roof panel 2 set on top of the base frame 1, a transmission component, a linkage component, and a triggering component. A protective cover 4 is rotatably connected to the roof panel 2. During the rotation of the protective cover 4, it has a first stroke and a second stroke in sequence. A ventilation opening is opened on the roof panel 2, and a glass skylight 38 is horizontally slidably connected inside the ventilation opening. A cleaning plate 5 is horizontally slidably connected to the bottom of the roof panel 2. The transmission component includes two symmetrically arranged transmission mechanisms, one of which is used to drive the protective cover 4 to rotate in the forward direction, and the other transmission mechanism is used to drive the protective cover 4 to rotate in the reverse direction. The linkage component is driven by the forward or reverse rotation of the protective cover 4 to make the cleaning plate 5 slide back and forth to clean the glass skylight 38. During the second stroke of the rotation of the protective cover 4, when the cleaning plate 5 reciprocates and cleans a preset number of times, the triggering component makes the glass skylight 38 slide horizontally to ventilate. Specifically, a guide groove 37 communicating with the ventilation opening is horizontally opened inside the roof panel 2, and the glass skylight 38 is horizontally slidably connected inside the guide groove 37.

[0029] As a preferred technical solution, both transmission mechanisms include a rotating shaft 6, a first fixed block 14, a second fixed block 36, a concave block 18, a first gear body 7, a first rack 8 meshing with the first gear body 7, an insert plate 13, and a connecting plate 9. The rotating shaft 6 passes through the protective cover 4. The first gear body 7 is coaxially fixedly connected to one end of the rotating shaft 6. The concave block 18 and the second fixed block 36 are both fixedly connected to the roof panel 2. The rotating shaft 6 is rotatably connected to the concave block 18. The first fixed block 14 is located on the side of the concave block 18 facing the second fixed block 36. The connecting plate 9 is slidably connected within the second fixed block 36. The insert plate 13 is horizontally located on the side of the connecting plate 9 facing the first fixed block 14. The insert plate 13 is inserted into the first fixed block 14. The bottom of the 3 abuts against the circumferential side of the rotating shaft 6. A positioning element is provided between the insert plate 13 and the first fixing block 14. A first elastic element 10 is provided between one end of the first rack 8 and the connecting plate 9, and a connecting bracket 34 is provided between the two first racks 8. Specifically, the two transmission mechanisms are symmetrically arranged. The first elastic element 10 includes a telescopic rod and a spring. The spring is sleeved on the telescopic rod, and the two ends of the spring are respectively fixedly connected to one end of the first rack 8 and the connecting plate 9. The telescopic rod is located between the first rack 8 and the connecting plate 9. A cylinder can be provided in the roof panel 2. The output end of the cylinder is fixedly connected to the connecting bracket 34. In the initial state, the protective cover 4 is horizontal, which provides a certain degree of protection and waterproofing for the glass skylight 38, and can prevent strong light from shining into the factory building. When the temperature rises, and only the protective cover 4 needs to be rotated, the cylinder drives the connecting bracket 34 to move the two first racks 8 horizontally. The two first elastic components can drive the two connecting plates 9 to move synchronously. A slot is opened on the first fixing block 14, and the insert plate 13 in one of the transmission mechanisms passes through the slot and moves horizontally to above the corresponding rotating shaft 6. The insert plate 13 is fixed by the positioning component. At this time, the bottom of the insert plate 13 is in contact with the circumferential side of the rotating shaft 6, which restricts the vertical displacement of the rotating shaft 6. The concave block 18 restricts the horizontal displacement of the rotating shaft 6. The first rack 8 continues to move, and the first elastic element 10 can realize the horizontal relative movement with the insert plate 13, and mesh with the first gear to drive the rotating shaft 6 in the concave block 14. The first rack 8 rotates between itself and the insert plate 13. In another transmission mechanism, the first rack 8 continues to move without meshing with the corresponding first gear body 7. The insert plate 13 is released from the fixing of the positioning member and moves away from the rotating shaft 6. The bottom of the insert plate 13 is not in contact with the circumferential side of the corresponding rotating shaft 6, thus releasing the restriction on the vertical displacement of the rotating shaft 6. Then, one rotating shaft 6 rotates on its own axis, and the other rotating shaft 6 revolves around the sun. The protective cover 4 rotates around the axis of the rotating shaft 6, realizing the opening of the protective cover 4. If only light is needed, the connecting bracket 34 can be moved towards the sun by the cylinder drive. The rotation angle of the protective cover 4 can be adjusted during the first stroke of rotation. Preferably, a reflector can be provided at the bottom of the protective cover 4 to adjust the angle of sunlight.Reflecting sunlight improves light collection efficiency, especially in weak sunlight or when the sun is near the horizon at a low angle. To simultaneously dissipate heat and smoke while providing shading to prevent sunlight from entering the plant and causing overheating, a cylinder drives the connecting bracket 34 to move away from the sun, causing the protective cover 4 to rotate towards the sun and block sunlight from entering the plant. During the second stroke of the protective cover 4's rotation, a trigger assembly opens the ventilation openings to dissipate heat and smoke from the nuclear power plant, achieving a balance between heat dissipation and shading.

[0030] As a preferred technical solution, the positioning component includes a rod 15, an abutment block 11, and a connecting block 16. The rod 15 is vertically slidably connected within the first fixing block 14, with its bottom end inclined toward the abutment block 11. The abutment block 11 slidably abuts against the bottom end of the rod 15, and the top end of the rod 15 is inserted into the insert plate 13. The connecting block 16 is sleeved on the rod 15, and its bottom end abuts against the top of the roof panel 2. A connecting rod 12 is provided between one side of the abutment block 11 and one side of the rack. Specifically, the insert plate 1... A socket is provided on the roof panel 3, and a horizontal groove is provided in the roof panel 2. When the first rack 8 drives the abutment block 11 to slide in the groove through the connecting rod 12, the abutment block 11 pushes the plug rod 15 to move upward. The plug rod 15 is inserted into the socket, fixing the plug plate 13 so that the plug plate 13 is located directly above the corresponding rotating shaft 6. A through hole communicating with the groove is provided on the roof panel 2. Since the cross-sectional area of ​​the connecting block 16 is larger than the cross-sectional area of ​​the through hole, and during the reset process of the plug rod 15, the plug rod 15 can be prevented from falling into the groove due to its own weight.

[0031] As a preferred technical solution, a return spring 17 is provided between the top of the connecting block 16 and the bottom of the first fixing block 14. The return spring 17 is sleeved on the insertion rod 15. Specifically, the two ends of the return spring 17 are fixedly connected to the top of the connecting block 16 and the bottom of the first fixing block 14, respectively. During the closing process of the protective cover 4, the abutment block 11 moves in the opposite direction. When the abutment block 11 is not in contact with the corresponding insertion rod 15, the insertion rod 15 is driven to move down by the return spring 17, thereby releasing the horizontal restriction of the insertion rod 15 on the insertion plate 13, which facilitates the reset of the insertion plate 13 and the insertion rod 15.

[0032] As a preferred technical solution, the linkage assembly includes two first bevel gears 19, two second bevel gears 20, two first rotating rods 21, two transmission belts 23, and a second rotating rod 22. The two first bevel gears 19 are coaxially and fixedly connected to the other ends of the two rotating shafts 6, corresponding one-to-one. The two second bevel gears 20 are meshed with the two first bevel gears 19, corresponding one-to-one. The two first rotating rods 21 are coaxially and fixedly connected to the bottom ends of the two second bevel gears 20, respectively. The second rotating rod 22 is rotatably connected within the roof panel 2. A cam 24 is fixedly connected to the bottom of the second rotating rod 22. One of the first rotating rods 21 is connected to the first... The two rotating rods 22 are connected by one of the transmission belts 23, and the other first rotating rod 21 is connected to the second rotating rod 22 by another transmission belt 23. The cam 24 abuts against one side of the cleaning plate 5. Specifically, two crossbeams 35 are symmetrically arranged on the base frame 1, and two longitudinal beams 3 are symmetrically arranged between the two crossbeams 35. A second elastic element 33 is provided between the side of the cleaning plate 5 away from the cam 24 and the longitudinal beam 3 away from the cam 24. The second elastic element 33 includes a spring and a telescopic rod. The telescopic rod is located between the side of the cleaning plate 5 away from the cam 24 and the crossbeam away from the cam 24. Between 35 and 35, and the spring is sleeved on the telescopic rod. The two ends of the spring are fixedly connected to the cleaning plate 5 and the longitudinal beam 3 respectively. A support plate is provided on the other longitudinal beam 3. The cam 24 is rotatably connected to the support plate. The support plate provides support for the cam 24 to prevent the cam 24 from falling off. During the rotation of the protective cover 4, the rotating shaft 6, which is rotating on its own axis, drives the first bevel gear 19 at one end to rotate. The first bevel gear 19 drives the corresponding first rotating rod 21 to rotate through the meshing transmission with the corresponding second bevel gear 20. The first rotating rod 21 drives the connecting rod 12 to rotate through the transmission belt 23. The cam 24 rotates, and its peripheral side always adheres to one side of the cleaning plate 5. In conjunction with the second elastic element 33, the cleaning plate 5 can clean the dust attached to the bottom of the glass skylight 38 when only light is needed or when the glass skylight 38 is reset after ventilation, thus improving the light-gathering efficiency. Meanwhile, the first bevel gear 19 on the other rotating shaft 6 does not mesh with the corresponding second bevel gear 20 because the rotating shaft 6 is in revolution. Regardless of the angle of sunlight, the protective cover 4 can rotate in either the forward or reverse direction to allow light to pass through, thus cleaning the glass skylight 38 and improving the light-gathering effect.

[0033] As a preferred technical solution, the triggering component includes a pawl 25, a ratchet 26 meshing with the pawl 25, a fourth rotating rod 27, a second slider 28, a second rack 29, a second gear body 30 meshing with the second rack 29, a first slider 31, and a third rotating rod 32. The pawl 25 is rotatably connected to one side of the cleaning plate 5, the fourth rotating rod 27 is rotatably connected to the roof plate 2, the second slider 28 is vertically slidably sleeved on the fourth rotating rod 27, the ratchet 26 is coaxially fixedly connected to the bottom end of the fourth rotating rod 27, one side of the second rack 29 is fixedly connected to the second slider 28, and the first slider 31 is fixedly... Connected to one side of the glass skylight 38, the second gear body 30 is rotatably connected inside the roof panel 2. The third rotating rod 32 is coaxially connected to one end of the second gear body 30. The first slider 31 is horizontally slidably sleeved on the third rotating rod 32. Specifically, the third rotating rod 32 has a spiral groove, and the first slider 31 has a protrusion that slides with the spiral groove. The fourth rotating rod 27 has two spiral grooves connected end to end, and the second slider 28 has a protrusion that slides with the two spiral grooves in sequence. The roof panel 2 has a horizontal sliding groove and a vertical sliding groove. The first slider 31 and the third rotating rod 32 are connected to the roof panel 2. Two sliders 28 are slidably connected in a horizontal slide groove and a vertical slide groove, respectively. The horizontal slide groove and the vertical slide groove guide the first slider 31 and the second slider 28, respectively, restricting the axial rotation of the first slider 31 and the second slider 28. A cylinder is vertically provided inside the cleaning plate 5, and a pawl 25 is rotatably sleeved on the cylinder. A torsion spring is provided between the pawl 25 and the cylinder. The cleaning plate 5 drives the pawl 25 to engage with the ratchet 26. When the cleaning plate 5 moves in the reverse direction, due to the action of the torsion spring, the pawl 25 will slide past the ratchet 26 without driving the ratchet 26 to rotate. And each time the cleaning plate 5 moves in the forward direction, it drives the ratchet 26 to rotate. When wheel 26 rotates, ratchet 26 drives fourth rotating rod 27 to rotate, driving first slider 31 to move downward. First slider 31 drives second rack 29 to move vertically downward. When the cleaning plate 5 reciprocates and cleans a preset number of times, second rack 29 moves downward and meshes with second gear body 30. Second gear body 30 drives third rotating rod 32 to rotate, driving second slider 28 to move horizontally. First slider 31 drives glass skylight 38 to move in guide groove 37, opening ventilation openings to dissipate heat and smoke inside the factory. The appropriate angle of rotation of protective cover 4 can be selected according to the required size of the ventilation opening.

[0034] As a preferred technical solution, two guide rails 39 are symmetrically arranged between the two longitudinal beams 3, and two pulleys are symmetrically arranged at the bottom of the cleaning plate 5. The two pulleys and the two guide rails 39 are slidably connected in a one-to-one correspondence. Specifically, the guide rails 39 play a guiding role for the cleaning plate 5, so that the cleaning plate 5 can only move in the horizontal direction, and at the same time play a supporting role to prevent the cleaning plate 5 from falling.

[0035] Working principle: When light is needed, and only the protective cover 4 needs to be rotated, the cylinder drives the connecting bracket 34 to move the two first racks 8 horizontally. The two first elastic components can then drive the two connecting plates 9 to move synchronously. A slot is provided on the first fixing block 14, and one of the insert plates 13 in the transmission mechanism passes through the slot, moving horizontally above the corresponding rotating shaft 6. The insert plate 13 is fixed by the positioning component. At this time, the bottom of the insert plate 13 is in contact with the circumferential side of the rotating shaft 6, restricting the vertical displacement of the rotating shaft 6. The concave block 18 restricts the horizontal displacement of the rotating shaft 6. The first racks 8 continue to move, and the first elastic element 10 can achieve relative horizontal movement with the insert plate 13. The first gear engages with the first gear, driving the rotating shaft 6 to rotate between the concave block 18 and the insert plate 13. Meanwhile, in another transmission mechanism, the first rack 8 continues to move and does not engage with the corresponding first gear body 7. The insert plate 13 is released from the fixing of the positioning member and moves away from the rotating shaft 6. The bottom of the insert plate 13 does not contact the circumferential side of the corresponding rotating shaft 6, thus releasing the restriction on the vertical displacement of the rotating shaft 6. One rotating shaft 6 then rotates, and the other rotating shaft 6 revolves around it. The protective cover 4 rotates around the axis of the rotating shaft 6, opening the protective cover 4. If only light is needed, the connecting bracket 34 can be moved towards the sun via a cylinder. The rotation angle of the protective cover 4 can be adjusted during the first stroke of rotation. Meanwhile, the rotating shaft 6, which is also rotating, drives the first bevel gear 19 at one end to rotate. The first bevel gear 19, through meshing with the corresponding second bevel gear 20, drives the corresponding first rotating rod 21 to rotate. The first rotating rod 21 drives the connecting rod 12 to rotate through the transmission belt 23. The connecting rod 12 drives the cam 24 to rotate. The peripheral side of the cam 24 is always in contact with one side of the cleaning plate 5. In conjunction with the second elastic element 33, the cleaning plate 5 can clean the dust attached to the bottom of the glass skylight 38 when only lighting is needed or when the glass skylight 38 is reset after ventilation, thus improving the lighting efficiency. If it is necessary to achieve sunshade while dissipating heat and smoke, and prevent sunlight from entering the factory and causing the factory to heat up, the connecting bracket 34 can be driven by the cylinder to move away from the sun. As the sun moves, the protective cover 4 rotates towards the sun to block sunlight and prevent it from entering the factory. During the second stroke of the protective cover 4's rotation, the cleaning plate 5 moves forward each time, driving the ratchet 26 to rotate. The ratchet 26 drives the fourth rotating rod 27 to rotate, driving the first slider 31 to move downward. The first slider 31 drives the second rack 29 to move vertically downward. When the cleaning plate 5 reaches a preset number of reciprocating cleaning cycles, the second rack 29 moves downward and meshes with the second gear body 30. The second gear body 30 drives the third rotating rod 32 to rotate, driving the second slider 28 to move horizontally. The first slider 31 drives the glass skylight 38 to move within the guide groove 37, opening the ventilation opening to dissipate heat and smoke inside the factory, achieving a balance between heat dissipation and sun shading.

[0036] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steel structure factory frame, comprising a base frame (1) and a roof panel (2) disposed on top of the base frame (1), wherein a protective cover (4) is rotatably connected to the roof panel (2), the protective cover (4) having a first stroke and a second stroke in sequence during rotation, a ventilation opening is provided on the roof panel (2), a glass skylight (38) is horizontally slidably connected inside the ventilation opening, and a cleaning plate (5) is horizontally slidably connected to the bottom of the roof panel (2), characterized in that, Also comprising: The transmission assembly comprises two symmetrical transmission mechanisms, one of which is used to drive the protective cover (4) to rotate forward, and the other is used to drive the protective cover (4) to rotate reversely. Both of the transmission mechanisms comprise a rotating shaft (6), a first fixed block (14), a second fixed block (36), a concave block (18), a first gear body (7), a first rack (8) meshing with the first gear body (7), an insertion plate (13), and a connecting plate (9). The rotating shaft (6) is arranged in the protective cover (4). The first gear body (7) is coaxially fixedly connected to one end of the rotating shaft (6). The concave block (18) and the second fixed block (36) are both fixedly connected to the roof panel (2). The rotating shaft (6) is rotatably connected to the concave block (18). The first fixed block (14) is arranged on one side of the concave block (18) facing the second fixed block (36). The connecting plate (9) is slidably connected in the second fixed block (36). The insertion plate (13) is horizontally arranged on one side of the connecting plate (9) facing the first fixed block (14). The insertion plate (13) is insertedly matched with the first fixed block (14). The bottom of the insertion plate (13) is abuttingly matched with the circumferential surface of the rotating shaft (6). A positioning piece is arranged between the insertion plate (13) and the first fixed block (14). A first elastic element (10) is arranged between one end of the first rack (8) and the connecting plate (9). A connecting bracket (34) is arranged between the two first racks (8). When only the protective cover (4) needs to be rotated, the connecting bracket (34) drives the two first racks (8) to move horizontally through the driving of the air cylinder. The two connecting plates (9) are synchronously displaced through the two first elastic elements (10). An insertion hole is arranged in the first fixed block (14). The insertion plate (13) in one of the transmission mechanisms passes through the insertion hole and moves horizontally above the corresponding rotating shaft (6). The insertion plate (13) is fixed through the positioning piece. At this time, the bottom of the insertion plate (13) is attached to the circumferential surface of the rotating shaft (6), which limits the displacement of the rotating shaft (6) in the vertical direction. The concave block (18) limits the displacement of the rotating shaft (6) in the horizontal direction. The first rack (8) continues to move, realizes the relative movement in the horizontal direction with the insertion plate (13) through the first elastic element (10), and is meshed with the first gear to drive the rotating shaft (6) to rotate between the concave block (18) and the insertion plate (13). In the other transmission mechanism, the first rack (8) continues to move without being meshed with the corresponding first gear body (7). The insertion plate (13) is separated from the fixing of the positioning piece and moves away from the rotating shaft (6). The bottom of the insertion plate (13) is not attached to the circumferential surface of the corresponding rotating shaft (6), which eliminates the limitation of the displacement of the rotating shaft (6) in the vertical direction. One rotating shaft (6) rotates, and the other rotating shaft (6) revolves. The protective cover (4) rotates around the axis of the rotating shaft (6) to realize the opening of the protective cover (4). The linkage assembly is driven by the forward or reverse rotation of the protective cover (4) to make the cleaning plate (5) reciprocate to clean the glass skylight (38); The trigger assembly is used to make the glass skylight (38) slide horizontally to ventilate when the cleaning plate (5) reaches the preset cleaning times during the second rotation of the protective cover (4).

2. A steel structure plant skeleton according to claim 1, characterized in that, The positioning member comprises a plug rod (15), an abutting block (11) and a connecting block (16), the plug rod (15) is vertically and slidingly connected in the first fixed block (14), the bottom end of the plug rod (15) is inclinedly arranged towards the abutting block (11), the abutting block (11) is slidingly and abuttingly connected with the bottom end of the plug rod (15), the top end of the plug rod (15) is plug-in connected with the plug plate (13), the connecting block (16) is sleeved on the plug rod (15), the bottom of the connecting block (16) is abuttingly connected with the top of the roof plate (2), and a connecting rod (12) is arranged between one side of the abutting block (11) and one side of the rack.

3. A steel structure plant skeleton according to claim 2, characterized in that, A reset spring (17) is arranged between the top of the connecting block (16) and the bottom of the first fixed block (14), and the reset spring (17) is sleeved on the plug rod (15).

4. A steel structure plant skeleton according to claim 1, characterized in that, The linkage assembly comprises two first bevel gears (19), two second bevel gears (20), two first rotating rods (21), two transmission belts (23) and a second rotating rod (22), the two first bevel gears (19) are coaxially and fixedly connected with the other ends of the two rotating shafts (6) one by one, the two second bevel gears (20) are meshingly connected with the two first bevel gears (19) one by one, the two first rotating rods (21) are coaxially and fixedly connected with the bottom ends of the two second bevel gears (20) respectively, the second rotating rod (22) is rotatably connected in the roof plate (2), the bottom of the second rotating rod (22) is fixedly connected with a cam (24), one of the first rotating rods (21) and the second rotating rod (22) are drivingly connected through one of the transmission belts (23), the other of the first rotating rods (21) and the second rotating rod (22) are drivingly connected through the other of the transmission belts (23), and the cam (24) is abuttingly connected with one side of the cleaning plate (5).

5. A steel-framed factory building skeleton according to claim 4, characterized in that Two cross beams (35) are symmetrically arranged on the base frame (1), two longitudinal beams (3) are symmetrically arranged between the two cross beams (35), and a second elastic element (33) is arranged between one side of the cleaning plate (5) away from the cam (24) and one of the longitudinal beams (3) away from the cam (24).

6. A steel structure plant skeleton according to claim 1, characterized in that, The trigger assembly comprises a pawl (25), a ratchet wheel (26) engaged with the pawl (25), a fourth rotating rod (27), a second sliding block (28), a second rack (29), a second gear body (30) engaged with the second rack (29), a first sliding block (31) and a third rotating rod (32), the pawl (25) is rotationally connected to one side of the cleaning plate (5), the fourth rotating rod (27) is rotationally connected in the roof plate (2), the second sliding block (28) is vertically slidably sleeved on the fourth rotating rod (27), the ratchet wheel (26) is coaxially fixedly connected to the bottom end of the fourth rotating rod (27), one side of the second rack (29) is fixedly connected with the second sliding block (28), the first sliding block (31) is fixedly connected to one side of the glass roof (38), the second gear body (30) is rotationally connected in the roof plate (2), the third rotating rod (32) is coaxially connected with one end of the second gear body (30), the first sliding block (31) is horizontally slidably sleeved on the third rotating rod (32), the third rotating rod (32) is provided with a spiral groove, the first sliding block (31) is provided with a protrusion which is slidably matched with the spiral groove, and the fourth rotating rod (27) is provided with two spiral grooves connected in head-to-tail manner, the second sliding block (28) is provided with a protrusion which is slidably matched with the two spiral grooves in sequence, a cylinder is vertically arranged in the cleaning plate (5), the pawl (25) is rotationally sleeved on the cylinder, a torsion spring is arranged between the pawl (25) and the cylinder, the cleaning plate (5) drives the pawl (25) to engage with the ratchet wheel (26), and when the cleaning plate (5) moves reversely, the pawl (25) will slide through the ratchet wheel (26) without driving the ratchet wheel (26) to rotate due to the action of the torsion spring, and the cleaning plate (5) drives the ratchet wheel (26) to rotate each time when the cleaning plate (5) moves forward.

7. A steel structure plant skeleton according to claim 5, characterized in that, Two guide rails (39) are symmetrically arranged between the two longitudinal beams (3), and two pulleys are symmetrically arranged at the bottom of the cleaning plate (5) and are slidably connected with the two guide rails (39) in one-to-one correspondence.

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