House building construction platform capable of expanding operation space

Abstract

The invention discloses a house building construction platform capable of expanding operation space, which relates to the technical field of building construction platform equipment, and comprises a cylindrical supporting barrel, a first construction platform, a second construction platform, a right-angle triangular platform, a movable supporting rod, a first unfolding mechanism, a second unfolding mechanism, an operation mechanism and a telescopic mechanism, the four second construction platforms are driven by first unfolding mechanisms to move, the eight right-angle triangular platforms are driven by second unfolding mechanisms to move, and the four movable supporting rods are driven by telescopic mechanisms to move. The first unfolding mechanism and the second unfolding mechanism can be driven by the operating mechanism to drive the four second construction platforms and the eight right-angle triangular platforms to be unfolded outwards and form a construction platform with a larger area with the first construction platform, so that the working space is greatly expanded; the four movable supporting rods can be contracted or unfolded for supporting under the action of the telescopic mechanism, and the stabilizing effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction platform equipment, and particularly relates to a building construction platform with expandable working space. Background Art

[0002] In construction work, whether it is outdoor construction or indoor construction, a construction platform that provides a certain height for construction workers is required. Scaffolding may be used to increase the construction height in outdoor construction. Since it is impossible to ensure that the scaffolding can enter the indoor in indoor construction, folding ladders will be used for assistance.

[0003] Traditional scaffolding and folding ladders usually only provide a fixed platform for workers to stand on. And the scaffolding needs to be assembled at any time according to the construction environment. When a larger standing platform needs to be replaced, the support part of the scaffolding needs to be reorganized, which is time-consuming. In indoor construction, the folding ladder can only provide a very small area for workers to stand on, resulting in the need to frequently move the ladder to change the construction point.

[0004] In order to solve the above problems, a building construction platform with expandable working space is now proposed. Summary of the Invention

[0005] The present invention aims at the above problems and provides a building construction platform with expandable working space, which solves the problems that traditional scaffolding and folding ladders usually only provide a fixed platform for workers to stand on, and the scaffolding needs to be assembled at any time according to the construction environment. When a larger standing platform needs to be replaced, the support part of the scaffolding needs to be reorganized, which is time-consuming. In indoor construction, the folding ladder can only provide a very small area for workers to stand on, resulting in the need to frequently move the ladder to change the construction point.

[0006] The technical solution adopted by the present invention is as follows: It includes a cylindrical support barrel, a first construction platform, a second construction platform, a right-angled triangular platform, a first guardrail, a second guardrail, a movable support rod, a first unfolding mechanism, a second unfolding mechanism, an operating mechanism, and a telescopic mechanism; The first construction platform is arranged above the cylindrical support barrel, and the second construction platforms are respectively movably arranged below the four outer corners of the first construction platform; The four second construction platforms are all driven to move by the first unfolding mechanism; Two right-angled triangular platforms are respectively movably arranged between two adjacent second construction platforms; The eight right-angled triangular platforms are respectively movably arranged below the first construction platform; The eight right-angled triangular platforms are all driven to move by the second unfolding mechanism; The four second construction platforms respectively drive the second unfolding mechanism to work through activities; There are gaps between the two right-angled triangular platforms between two adjacent second construction platforms; An operating mechanism is provided inside the cylindrical support barrel, and the first unfolding mechanism is driven to work by the operating mechanism; Activity support rods are respectively and movably provided at the lower ends of the four second construction platforms, and the four activity support rods are respectively driven to move through telescopic mechanisms; The telescopic mechanism is driven to work by the first unfolding mechanism; Second guardrails are respectively provided at the upper ends of the right-angled sides on the outer sides of the eight right-angled triangular platforms, and the two adjacent second guardrails on the same side are detachably in contact.

[0007] Further, the first unfolding mechanism includes a first connecting rod, a threaded movable block, a first connecting frame, a second connecting frame, a threaded rod, a cross connecting platform, a third connecting frame, and a rotating connecting frame; A cross connecting platform is fixedly provided at the lower end of the first construction platform, and the cross connecting platform and the bottom wall of the cylindrical support barrel are fixedly connected by two connecting rods; The same threaded rod is rotatably provided between the cross connecting platform and the cylindrical support barrel, and the two connecting rods are respectively arranged on both sides of the threaded rod; A threaded movable block is sleeved on the outer side of the threaded rod in a threaded manner; Third connecting frames are respectively fixedly provided at the lower parts of the two ends of the horizontal plate and the vertical plate of the cross connecting platform; Rotating connecting frames are respectively fixedly provided at the inner ends of the four second construction platforms, and the four rotating connecting frames are respectively rotatably arranged in the third connecting frames close to them; Second connecting frames are respectively fixedly provided in the middle of the lower ends of the four second construction platforms, and the first ends of the first connecting rods are respectively rotatably arranged in the four second connecting frames; First connecting frames are respectively fixedly provided on the four side walls of the threaded movable block; The second ends of the four first connecting rods are respectively rotatably arranged in the first connecting frames close to them; The four first connecting rods respectively drive the telescopic mechanism to work through deflection; The threaded rod is driven to rotate by the operating mechanism.

[0008] Further, the operating mechanism includes a crank, a first bevel gear, and a second bevel gear; A first bevel gear is fixedly sleeved on the lower end of the threaded rod. The first bevel gear is rotatably arranged on the upper end of the bottom wall of the cylindrical support barrel. A second bevel gear is meshed with the right side of the first bevel gear. The second bevel gear is rotatably arranged on the inner side of the inner wall of the cylindrical support barrel through a driving shaft. The driving shaft rotatably penetrates through the side wall of the cylindrical support barrel and is fixedly provided with a crank. The threaded moving block is movably arranged above the first bevel gear.

[0009] Further, the second unfolding mechanism includes a rectangular block, a rectangular slider, a second connecting rod, a fourth connecting frame, a fifth connecting frame, a third connecting rod, a T-shaped slider, a fourth connecting rod, a seventh connecting frame, a sixth connecting frame, and a telescopic rod. Rectangular blocks are fixedly arranged on the upper ends of the four second construction platforms. First rectangular chutes are respectively arranged on the inner walls of the four rectangular blocks. Two rectangular sliders are respectively slidably arranged in the same first rectangular chute. First connecting shafts are respectively fixedly arranged on the inner walls of the eight rectangular sliders. The eight first connecting shafts respectively penetrate through the first rectangular chutes adjacent to them in a sliding manner. The first ends of second connecting rods are respectively rotatably arranged on the outer walls of the eight first connecting shafts. The middle parts of the inclined walls of the eight right-angled triangular platforms are respectively rotatably connected to the middle parts of the side walls of the second construction platforms adjacent to them. The upper ends of the inclined walls of the eight right-angled triangular platforms are respectively fixedly provided with fifth connecting frames. The second ends of the eight second connecting rods are respectively rotatably arranged in the fifth connecting frames adjacent to them. Fourth connecting frames are respectively fixedly arranged at the inner end heads of the eight first connecting shafts. The eight second connecting rods are respectively movably arranged between the rectangular sliders and the fourth connecting frames adjacent to them. The first ends of third connecting rods are respectively rotatably arranged in the eight fourth connecting frames. Rectangular through grooves are respectively arranged on the four second construction platforms. The four rectangular through grooves are respectively arranged inside the rectangular blocks adjacent to them. The vertical plates of the T-shaped sliders are respectively slidably arranged in the four rectangular through grooves. The horizontal plates of the four T-shaped sliders are respectively slidably arranged on the upper ends of the second construction platforms adjacent to them. Second connecting shafts are respectively fixedly arranged on the upper parts of the two ends of the cross bars of the four T-shaped sliders. The second ends of the eight third connecting rods are respectively rotatably sleeved on the outer walls of the second connecting shafts adjacent to them. Seventh connecting frames are respectively fixedly arranged in the middle of the upper ends of the horizontal plates of the four T-shaped sliders. Sixth connecting frames are respectively fixedly arranged at the two ends of the horizontal plate and the two ends of the vertical plate of the cross connecting platform. The first ends of four of the sixth connecting frames and the seventh connecting frames adjacent thereto are respectively rotatably provided with a first end of a fourth connecting rod; The second ends of two adjacent fourth connecting rods are connected by a telescopic rod.

[0010] Further, the telescopic mechanism includes an eighth connecting frame, a ninth connecting frame, and a fifth connecting rod; The lower ends of four of the second construction platforms are respectively provided with second rectangular chutes, and four of the movable support rods are respectively movably arranged in the second rectangular chutes adjacent thereto; The lower ends of four of the movable support rods are respectively fixedly provided with a ninth connecting frame, and the first ends of a fifth connecting rod are respectively rotatably arranged in four of the ninth connecting frames; The middle parts of the lower ends of four of the first connecting rods are respectively fixedly provided with an eighth connecting frame, and the second ends of four of the fifth connecting rods are respectively rotatably arranged in the eighth connecting frames adjacent thereto.

[0011] Furthermore, clamping grooves are respectively provided on the right-angled sides of two adjacent right-angled triangular platforms, a guide plate is detachably slidably arranged in the clamping grooves, the same limiting plate is fixedly arranged between two adjacent guide plates, and four of the limiting plates are respectively detachably arranged in the gaps adjacent thereto; Four of the limiting plates are respectively detachably arranged in the gaps adjacent thereto through fixing members.

[0012] Advantages of the present invention: The first unfolding mechanism and the second unfolding mechanism of the present invention can drive four of the second construction platforms and eight right-angled triangular platforms to unfold outwards along with the driving of the operating mechanism, and form a construction platform with a larger area together with the first construction platform, greatly expanding the working space. Four of the movable support rods of the present invention will also contract or expand and support under the mechanism of the telescopic mechanism, playing a stabilizing role.

[0013] In addition to the purposes, features, and advantages described above, the present invention has other purposes, features, and advantages. The following will refer to the drawings to further describe the present invention in detail. Brief Description of the Drawings

[0014] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the bottom of the overall structure of the present invention; Figure 3 It is a schematic diagram of the working principle of the telescopic mechanism of the present invention; Figure 4 Schematic diagram of the working principle of the second deployment mechanism of the present invention; Figure 5 Schematic diagram of the installation position of the limit plate of the present invention; Figure 6 Schematic diagram of the overall structure of the second deployment mechanism of the present invention; Figure 7 Side view of the overall structure of the first deployment mechanism of the present invention; Figure 8 Schematic diagram of the state during storage of the present invention; Figure 9 Schematic diagram of the installation of the cylindrical support barrel and the first construction platform of the present invention; Figure 10 Schematic diagram of the working principle of the first deployment mechanism of the present invention; Figure 11 Schematic diagram of the installation of the first deployment mechanism and the second deployment mechanism of the present invention; Figure 12 Schematic diagrams of two working states of the present invention.

[0016] Reference numerals: 1 is a cylindrical support barrel, 2 is a crank, 3 is a second bevel gear, 4 is a first bevel gear, 5 is a threaded rod, 6 is a first construction platform, 7 is a first guardrail, 8 is a right-angled triangular platform, 9 is a second guardrail, 10 is a second construction platform, 11 is a limit plate, 12 is a threaded movable block, 13 is a first connecting rod, 14 is a fifth connecting rod, 15 is a movable support rod, 16 is a rectangular block, 17 is a third connecting rod, 18 is a T-shaped slider, 19 is a second connecting rod, 20 is a fourth connecting rod, 21 is a rectangular slider; 501 is a connecting rod; 601 is a cross connecting platform, 602 is a third connecting frame, 6011 is a sixth connecting frame; 801 is a card slot, 802 is a fifth connecting frame; 1001 is a second rectangular chute, 1002 is a second connecting frame, 1003 is a rectangular through slot, 1004 is a rotating connecting frame; 1101 is a guide plate; 1201 is a first connecting frame; 1301 is an eighth connecting frame; 1501 is a ninth connecting frame; 1601 is a first rectangular chute; 1801 is a seventh connecting frame; 2001 is a telescopic rod; 2101 is a fourth connecting frame. Detailed implementation manners

[0017] In order to make the objectives, technical solutions and advantages of the invention more clear and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In the description of the invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0019] Referring to Figures 1 to 12 , a building construction platform with an expandable working space, comprising a cylindrical support barrel 1, a first construction platform 6, a second construction platform 10, a right-angled triangular platform 8, a first guardrail 7, a second guardrail 9, a movable support rod 15, a first unfolding mechanism, a second unfolding mechanism, an operating mechanism, and a telescopic mechanism; A first construction platform 6 is installed above the cylindrical support barrel 1. Four second construction platforms 10 are respectively movably installed below the four outer corners of the first construction platform 6. The cylindrical support barrel 1 is used to provide support for the expanded equipment and also provides an installation platform for the operating mechanism described later; The four second construction platforms 10 are all driven to move by the first unfolding mechanism, and the four second construction platforms 10 will be driven by the first unfolding mechanism to flip and unfold upward along the four sides of the first construction platform 6; Two right-angled triangular platforms 8 are respectively movably installed between two adjacent second construction platforms 10; Eight right-angled triangular platforms 8 are respectively movably installed below the first construction platform 6; The eight right-angled triangular platforms 8 are all driven to move by the second unfolding mechanism. The eight right-angled triangular platforms 8 are respectively driven by the second unfolding mechanism to flip and unfold upward synchronously with the four second construction platforms 10 and form a large-area construction platform with the four second construction platforms 10; The four second construction platforms 10 respectively drive the second unfolding mechanism to work through activities; There are gaps between the two right-angled triangular platforms 8 between two adjacent second construction platforms 10; An operating mechanism is installed inside the cylindrical support barrel 1, and the first unfolding mechanism is driven to work by the operating mechanism; The lower ends of the four second construction platforms 10 are respectively movably installed with movable support rods 15, and the four movable support rods 15 are respectively driven to move by the telescopic mechanism; The telescopic mechanism is driven by the first deployment mechanism to work. When the equipment is stored, the four movable support rods 15 will slowly extend downward under the drive of the telescopic mechanism and assist in supporting the equipment. On the upper ends of the outer right-angled sides of the eight right-angled triangular platforms 8, second guardrails 9 are respectively installed. The two adjacent second guardrails 9 on the same side are detachably in contact with each other. The second guardrails 9 play a role in protecting the staff on the platform and preventing them from falling off.

[0020] The first deployment mechanism includes a first connecting rod 13, a threaded movable block 12, a first connecting frame 1201, a second connecting frame 1002, a threaded rod 5, a cross connecting platform 601, a third connecting frame 602, and a rotating connecting frame 1004. The lower end of the first construction platform 6 is fixedly installed with a cross connecting platform 601. The cross connecting platform 601 and the bottom wall of the cylindrical support barrel 1 are fixedly connected by two connecting rods 501. A same threaded rod 5 is rotatably installed between the cross connecting platform 601 and the cylindrical support barrel 1. The two connecting rods 501 are respectively installed on both sides of the threaded rod 5. A threaded movable block 12 is threadedly installed on the outer side of the threaded rod 5. At the lower parts of the two ends of the horizontal and vertical plates of the cross connecting platform 601, third connecting frames 602 are respectively fixedly installed. The inner ends of the four second construction platforms 10 are respectively fixedly installed with rotating connecting frames 1004. The four rotating connecting frames 1004 are respectively rotatably installed in the third connecting frames 602 close to them. The middle parts of the lower ends of the four second construction platforms 10 are respectively fixedly installed with second connecting frames 1002. The first ends of the four first connecting rods 13 are respectively rotatably installed in the second connecting frames 1002. First connecting frames 1201 are respectively fixedly installed on the four side walls of the threaded movable block 12. The second ends of the four first connecting rods 13 are respectively rotatably installed in the first connecting frames 1201 close to them. The four first connecting rods 13 respectively drive the telescopic mechanism to work through deflection. The threaded rod 5 is driven to rotate by the operating mechanism. The threaded rod 5 starts to rotate under the drive of the operating mechanism, and drives the threaded movable block 12 to move up and down during the rotation. Since the first construction platform 6 and the cylindrical support barrel 1 are connected by two connecting rods 5, the threaded rod 5 will not drive the first construction platform 6 to rotate during the rotation. During the up and down movement of the threaded movable block 12, the four first connecting rods 13 are respectively driven to deflect up and down. During the up and down deflection of the four first connecting rods 13, the second construction platforms 10 that cooperate with them are respectively driven to rotate up and down around their respective rotation centers. As the four second construction platforms 10 rotate up and down, the eight right-angled triangular platforms 8 will be respectively driven to rotate up and down. The eight right-angled triangular platforms 8 will respectively form an enlarged working platform with the four second construction platforms 10 during the up and down rotation.

[0021] The operating mechanism includes a crank 2, a first bevel gear 4, and a second bevel gear 3; The lower end of the threaded rod 5 is fixedly installed with a first bevel gear 4. The first bevel gear 4 is rotatably installed at the upper end of the bottom wall of the cylindrical support barrel 1. A second bevel gear 3 is meshed and installed on the right side of the first bevel gear 4. The second bevel gear 3 is rotatably installed on the inner side of the inner wall of the cylindrical support barrel 1 through a drive shaft; The drive shaft rotates through the side wall of the cylindrical support barrel 1 and is fixedly installed with a crank 2; The threaded movable block 12 is movably installed above the first bevel gear 4. By rotating the crank 2, the output end of the crank 2 drives the second bevel gear 3 coaxially fixed thereto to start rotating. During the rotation of the second bevel gear 3, it drives the first bevel gear 4 meshed with it to start rotating. The first bevel gear 4 can drive the threaded rod 5 coaxially fixed thereto to start rotating by rotation.

[0022] The second unfolding mechanism includes a rectangular block 16, a rectangular slider 21, a second connecting rod 19, a fourth connecting frame 2101, a fifth connecting frame 802, a third connecting rod 17, a T-shaped slider 18, a fourth connecting rod 20, a seventh connecting frame 1801, a sixth connecting frame 6011, and a telescopic rod 2001; Rectangular blocks 16 are fixedly installed at the upper ends of the four second construction platforms 10, and first rectangular chutes 1601 are respectively provided on the inner walls of the four rectangular blocks 16; Two rectangular sliders 21 are respectively slidably installed in the same first rectangular chute 1601. First connecting shafts are respectively fixedly installed on the inner walls of the eight rectangular sliders 21, and the eight first connecting shafts respectively penetrate through the first rectangular chutes 1601 close to them; The first ends of the second connecting rods 19 are respectively rotatably installed on the outer walls of the eight first connecting shafts; The middle parts of the inclined walls of the eight right-angled triangular platforms 8 are respectively rotatably connected to the middle parts of the side walls of the second construction platforms 10 close to them; The upper ends of the inclined walls of the eight right-angled triangular platforms 8 are respectively fixedly installed with fifth connecting frames 802, and the second ends of the eight second connecting rods 19 are respectively rotatably installed in the fifth connecting frames 802 close to them; Fourth connecting frames 2101 are respectively fixedly installed at the inner ends of the eight first connecting shafts, and the eight second connecting rods 19 are respectively movably installed between the rectangular sliders 21 close to them and the fourth connecting frames 2101; The first ends of the eight third connecting rods 17 are respectively rotatably installed in the eight fourth connecting frames 2101; Rectangular through grooves 1003 are respectively provided on the four second construction platforms 10, and the four rectangular through grooves 1003 are respectively installed inside the rectangular blocks 16 close to them; The vertical plates of the T-shaped sliders 18 are respectively slidably installed in the four rectangular through grooves 1003; the horizontal plates of the four T-shaped sliders 18 are respectively slidably installed on the upper ends of the second construction platforms 10 close to them; Second connecting shafts are respectively fixedly installed on the upper parts of both ends of the cross bars of the four T-shaped sliders 18, and the second ends of the eight third connecting rods 17 are respectively rotatably installed on the outer walls of the second connecting shafts close to them; Seventh connecting frames 1801 are respectively fixedly installed in the middle of the upper ends of the horizontal plates of the four T-shaped sliders 18; Sixth connecting frames 6011 are respectively fixedly installed at both ends of the horizontal plate and both ends of the vertical plate of the cross connecting platform 601; The first ends of the four fourth connecting rods 20 are respectively rotatably installed in the sixth connecting frames 6011 close to them and the seventh connecting frames 1801; The second ends between two adjacent fourth connecting rods 20 are all connected by telescopic rods 2001, refer to Figure 6 , Figure 7, when the four second construction platforms 10 rotate from bottom to top, the telescopic rod 2001 starts to contract, and the distance between the two fourth connecting rods 20 on the same side starts to decrease. After the telescopic rod 2001 contracts to the limit position, the two fourth connecting rods 20 on the same side are close to each other and can be regarded as a fixed short connecting rod. As the four second construction platforms 10 continue to flip upward, the short connecting rod on the same side starts to push the T-shaped slider 18 that cooperates with it to start sliding outward. As the four T-shaped sliders 18 slide outward, they will respectively drive the two third connecting rods 17 close to them to start deflecting outward, and the included angle between the two third connecting rods 17 on the same side starts to increase. During the process of the two third connecting rods 17 on the same side deflecting outward, they will respectively push the two rectangular sliders 21 close to them to start sliding towards both ends of the first rectangular chute 1601. The two rectangular sliders 21 on the same side will start to push the second connecting rod 19 that cooperates with them to deflect outward, and during the deflection process, they will push the two right-angled triangular platforms 8 on the same side to flip downward. When the four second construction platforms 10 flip upward to be parallel to the horizontal plane, the eight right-angled triangular platforms 8 flip downward to be parallel to the second construction platforms 10. At this time, the four second construction platforms 10 and the eight right-angled triangular platforms 8 can form a large-scale working platform as Figure 1 shown. When the four second construction platforms 10 rotate from top to bottom, the short connecting rod on the same side starts to deflect downward and gradually starts to separate into two fourth connecting rods 20. The distance between the two fourth connecting rods 20 on the same side starts to gradually increase, and the telescopic rod 2001 starts to gradually extend. After the telescopic rod 2001 extends to the limit position, the two fourth connecting rods 20 on the same side and the telescopic rod 2001 extended to the limit position can be regarded as a fixed long connecting rod. During the process of the four second construction platforms 10 continuously rotating downward, the long connecting rod on the same side starts to pull the T-shaped slider 18 that cooperates with it to start sliding inward. As the four T-shaped sliders 18 slide inward, they will respectively drive the two third connecting rods 17 close to them to start deflecting inward, and the included angle between the two third connecting rods 17 on the same side starts to decrease. During the process of the two third connecting rods 17 on the same side deflecting inward, they will respectively pull the two rectangular sliders 21 close to them to start sliding towards the middle of the first rectangular chute 1601. The two rectangular sliders 21 on the same side will start to pull the second connecting rod 19 that cooperates with them to deflect inward, and during the deflection process, they will pull the two right-angled triangular platforms 8 on the same side to fold upward and finally fold to a state perpendicular to the second construction platform 10 close to them, as Figure 8 shown in the state.

[0023] The telescopic mechanism includes an eighth connecting frame 1301, a ninth connecting frame 1501, and a fifth connecting rod 14; The lower ends of the four second construction platforms 10 are respectively provided with second rectangular chutes 1001, and the four movable support rods 15 are respectively movably installed in the second rectangular chutes 1001 close to them; The lower ends of the four movable support rods 15 are respectively fixedly installed with ninth connecting frames 1501, and the first ends of the five connecting rods 14 are respectively rotatably installed in the four ninth connecting frames 1501; The middle parts of the lower ends of the four first connecting rods 13 are respectively fixedly installed with eighth connecting frames 1301, and the second ends of the four five connecting rods 14 are respectively rotatably installed in the eighth connecting frames 1301 close to them. Refer to Figure 2 , when the four second construction platforms 10 rotate downward from top to bottom, the four first connecting rods 13 begin to deflect inward. As the four first connecting rods 13 deflect inward, they will respectively drive the five connecting rods 14 cooperating with them to begin to deflect outward. During the process of the four five connecting rods 14 deflecting outward, they will respectively push the movable support rods 15 cooperating with them to slide outwards. After the four movable support rods 15 slide outwards to the limit position, they contact the ground and cooperate with the cylindrical support barrel 1 to form a relatively stable bottom support structure, as Figure 8 shown in the state.

[0024] Card slots 801 are respectively arranged on the right-angled sides of two adjacent right-angled triangular platforms 8. Guide plates 1101 are detachably and slidably installed in the card slots 801. The same limiting plate 11 is fixedly installed between two adjacent guide plates 1101. The four limiting plates 11 are respectively detachably installed in the gaps close to them; The four limiting plates 11 are respectively detachably installed in the gaps close to them through fixing parts. Refer to Figure 5 , when the four second construction platforms 10 are flipped upwards to the limit position, they are parallel to both the first construction platform 6 and the eight right-angled triangular platforms 8. At this time, there are gaps between two adjacent right-angled triangular platforms 8. In order to prevent objects from falling off from the gaps during the construction process, it is necessary to use the limiting plates 11 to block the gaps. The cooperation between the guide plates 1101 and the card slots 801 limits the sliding track of the limiting plates 11, and can ensure that while blocking the gaps, it also limits the rotation of the two right-angled triangular platforms 8 cooperating with them, making the platform more stable after unfolding. In order to prevent the limiting plates 11 from sliding out of the gaps, they can be fixed in the gaps by using screws. Just thread-fix a number of screws through the guide plates 1101 and the card slots 801 cooperating with them.

[0025] Implementation method of the present invention: When the device is in the initial state, the four second construction platforms 10 are folded and stored under the first construction platform 6, and the eight right-angled triangular platforms 8 are flipped upwards to be perpendicular to the two sides of the second construction platform 10 close to them; Four movable support rods 15 extend downward, and a matching bottom support structure is formed between them and the cylindrical support barrel 1. At this time, a ladder can be used to climb onto the first construction platform 6 for construction, as Figure 12 shown in State A; When the working platform needs to be expanded, the construction workers need to temporarily get off the first construction platform 6 and shake the crank handle 2 by hand. At this time, the four second construction platforms 10 start to turn upward, and the eight right-angled triangular platforms 8 also start to turn downward. When the four second construction platforms 10 turn upward to the limit position, they will be parallel to the first construction platform 6, and the eight right-angled triangular platforms 8 will also be parallel to the second construction platforms 10. At this time, the four second construction platforms 10, the eight right-angled triangular platforms 8 and the first construction platform 6 can be spliced into a construction platform with a larger area; As the four second construction platforms 10 rise, the four movable support rods 15 also start to gradually retract to the lower ends of the second construction platforms 10 that cooperate with them; At this time, the staff carry four limit plates 11, climb to the upper end of the expanded support platform using a ladder, and insert the four limit plates 11 into the four gaps respectively to prevent objects on the platform from passing through the gaps and falling off, thus causing harm to people below the platform.

[0026] The first unfolding mechanism and the second unfolding mechanism of the present invention can drive the four second construction platforms and the eight right-angled triangular platforms to unfold outward with the drive of the operating mechanism, and form a construction platform with a larger area with the first construction platform, greatly expanding the working space. The four movable support rods of the present invention will also contract or expand and support under the mechanism of the telescopic mechanism, playing a stabilizing role.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A building construction platform with an expandable operation space, characterized in that: It includes a cylindrical support barrel (1), a first construction platform (6), a second construction platform (10), a right-angled triangular platform (8), a first guardrail (7), a second guardrail (9), a movable support rod (15), a first unfolding mechanism, a second unfolding mechanism, an operating mechanism, and a telescopic mechanism; Above the cylindrical support barrel (1), there is a first construction platform (6), and below the four outer corners of the first construction platform (6), there are respectively and movably arranged second construction platforms (10); The four second construction platforms (10) are all driven to move by a first unfolding mechanism; Between two adjacent second construction platforms (10), there are respectively and movably arranged two right-angled triangular platforms (8); The eight right-angled triangular platforms (8) are respectively and movably arranged below the first construction platform (6); The eight right-angled triangular platforms (8) are all driven to move by a second unfolding mechanism; The four second construction platforms (10) respectively drive the second unfolding mechanism to work through movement; There are gaps between the two right-angled triangular platforms (8) between two adjacent second construction platforms (10); An operating mechanism is arranged inside the cylindrical support barrel (1), and the first unfolding mechanism is driven to work by the operating mechanism; At the lower ends of the four second construction platforms (10), there are respectively and movably arranged movable support rods (15), and the four movable support rods (15) are respectively driven to move by a telescopic mechanism; The telescopic mechanism is driven to work by the first unfolding mechanism; At the upper ends of the right-angled sides on the outer side of the eight right-angled triangular platforms (8), there are respectively arranged second guardrails (9), and the second guardrails (9) adjacent to each other on the same side are detachably in contact; 2. The building construction platform with an expandable working space according to claim 1, characterized in that: The first unfolding mechanism includes a first connecting rod (13), a threaded movable block (12), a first connecting frame (1201), a second connecting frame (1002), a threaded rod (5), a cross connecting platform (601), a third connecting frame (602), and a rotating connecting frame (1004); At the lower end of the first construction platform (6), a cross connecting platform (601) is fixedly arranged, and between the cross connecting platform (601) and the bottom wall of the cylindrical support barrel (1), they are fixedly connected by two connecting rods (501); Between the cross connecting platform (601) and the cylindrical support barrel (1), the same threaded rod (5) is rotatably arranged, and the two connecting rods (501) are respectively arranged on both sides of the threaded rod (5); A threaded movable block (12) is threadedly sleeved on the outer side of the threaded rod (5); At the lower parts of the two ends of the horizontal and vertical plates of the cross connecting platform (601), third connecting frames (602) are respectively fixedly arranged; At the inner ends of the four second construction platforms (10), rotating connecting frames (1004) are respectively fixedly arranged, and the four rotating connecting frames (1004) are respectively rotatably arranged inside the third connecting frames (602) close to them; At the middle parts of the lower ends of the four second construction platforms (10), second connecting frames (1002) are respectively fixedly arranged, and the first ends of the first connecting rods (13) are respectively rotatably arranged inside the four second connecting frames (1002); On the four side walls of the threaded movable block (12), first connecting frames (1201) are respectively fixed; The second ends of the four first connecting rods (13) are respectively rotatably arranged in the first connecting frames (1201) close to them; The four first connecting rods (13) respectively drive the telescopic mechanism to work through deflection; The threaded rod (5) is driven to rotate by the operating mechanism.

3. The building construction platform with an expandable working space according to claim 2, characterized in that: The operating mechanism includes a crank (2), a first bevel gear (4), and a second bevel gear (3); The lower end of the threaded rod (5) is fixedly sleeved with a first bevel gear (4). The first bevel gear (4) is rotatably arranged at the upper end of the bottom wall of the cylindrical support barrel (1). A second bevel gear (3) is meshed on the right side of the first bevel gear (4). The second bevel gear (3) is rotatably arranged on the inner side of the inner wall of the cylindrical support barrel (1) through a drive shaft; The drive shaft rotatably penetrates through the side wall of the cylindrical support barrel (1) and is fixedly provided with a crank (2); The threaded movable block (12) is movably arranged above the first bevel gear (4).

4. The building construction platform with an expandable working space according to claim 2, characterized in that: The second unfolding mechanism includes a rectangular block (16), a rectangular slider (21), a second connecting rod (19), a fourth connecting frame (2101), a fifth connecting frame (802), a third connecting rod (17), a T-shaped slider (18), a fourth connecting rod (20), a seventh connecting frame (1801), a sixth connecting frame (6011), and a telescopic rod (2001); Rectangular blocks (16) are fixedly arranged at the upper ends of the four second construction platforms (10). First rectangular chutes (1601) are respectively arranged on the inner walls of the four rectangular blocks (16); Two rectangular sliders (21) are respectively slidably arranged in the same first rectangular chute (1601). First connecting shafts are respectively fixed on the inner walls of the eight rectangular sliders (21). The eight first connecting shafts respectively penetrate through the first rectangular chutes (1601) close to them; The first ends of the second connecting rods (19) are respectively rotatably arranged on the outer walls of the eight first connecting shafts; The middle parts of the inclined walls of the eight right-angled triangular platforms (8) are respectively rotatably connected to the middle parts of the side walls of the second construction platforms (10) close to them; Fifth connecting frames (802) are respectively fixed at the upper ends of the inclined walls of the eight right-angled triangular platforms (8). The second ends of the eight second connecting rods (19) are respectively rotatably arranged in the fifth connecting frames (802) close to them; Fourth connecting frames (2101) are respectively fixed at the inner ends of the eight first connecting shafts. The eight second connecting rods (19) are respectively movably arranged between the rectangular sliders (21) and the fourth connecting frames (2101) close to them; The first ends of the third connecting rods (17) are respectively rotatably arranged in the eight fourth connecting frames (2101); Rectangular through grooves (1003) are respectively arranged on the four second construction platforms (10). The four rectangular through grooves (1003) are respectively arranged inside the rectangular blocks (16) close to them; Vertical plates of T-shaped sliders (18) are respectively and slidably arranged in the four rectangular through grooves (1003); horizontal plates of the four T-shaped sliders (18) are respectively and slidably arranged on the upper ends of the second construction platforms (10) close to them. Upper parts at both ends of the cross bars of the four T-shaped sliders (18) are respectively fixedly provided with second connecting shafts, and second ends of the eight third connecting rods (17) are respectively rotatably sleeved on the outer walls of the second connecting shafts close to them. Middle parts of the upper ends of the horizontal plates of the four T-shaped sliders (18) are respectively fixedly provided with seventh connecting frames (1801). Both ends of the horizontal plate and both ends of the vertical plate of the cross-shaped connecting platform (601) are respectively fixedly provided with sixth connecting frames (6011). First ends of the fourth connecting rods (20) are respectively and rotatably arranged in the four sixth connecting frames (6011) and the seventh connecting frames (1801) close to them. Second ends of two adjacent fourth connecting rods (20) are connected by telescopic rods (2001).

5. The building construction platform with an expandable working space according to claim 2, characterized in that: The telescopic mechanism includes an eighth connecting frame (1301), a ninth connecting frame (1501), and a fifth connecting rod (14). Second rectangular chutes (1001) are respectively arranged at the lower ends of the four second construction platforms (10), and the four movable support rods (15) are respectively movably arranged in the second rectangular chutes (1001) close to them. Lower ends of the four movable support rods (15) are respectively fixedly provided with ninth connecting frames (1501), and first ends of the fifth connecting rods (14) are respectively and rotatably arranged in the four ninth connecting frames (1501). Middle parts of the lower ends of the four first connecting rods (13) are respectively fixedly provided with eighth connecting frames (1301), and second ends of the four fifth connecting rods (14) are respectively rotatably arranged in the eighth connecting frames (1301) close to them.

6. The building construction platform with an expandable working space according to claim 1, characterized in that: Chutes (801) are respectively arranged on the right-angle sides of two adjacent right-angled triangular platforms (8), guide plates (1101) are detachably and slidably arranged in the chutes (801), the same limiting plate (11) is fixedly arranged between two adjacent guide plates (1101), and the four limiting plates (11) are respectively detachably arranged in the gaps close to them. The four limiting plates (11) are respectively detachably arranged in the gaps close to them through fixing pieces.

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