High-altitude extension platform for house building construction

Abstract

The high-altitude extension platform comprises a main platform body, an auxiliary platform body, an external exhibition table and a linkage type driving mechanism, the auxiliary platform body is rotationally connected to an assembly ring frame in the main platform body in an auxiliary mode through a positioning ring, the angle of the auxiliary platform body can be adjusted in an adaptive mode, and construction operation is easily assisted; the external exhibition platform forms a sliding structure on the auxiliary platform and can adjust the external expansion construction platform, and the linkage type driving mechanism is fixedly arranged on the lower side wall of a platform plate of the auxiliary platform, is used for freely and flexibly adjusting the auxiliary platform and the external exhibition platform in real time and can conveniently and automatically lock the auxiliary platform and the external exhibition platform after being adjusted. The high-altitude extension platform for house building construction is different from a traditional fixed platform, adaptive free adjustment of the angle of the platform is achieved in the using process, adaptive free adjustment of outward extension of the platform is achieved, constructors are assisted in better approaching a construction site in the high altitude, and in addition, real-time automatic adjustment can be achieved in a matched mode in the construction process.

Description

Technical Field

[0001] The invention relates to the technical field related to building construction, and in particular to a high-altitude expansion platform for building construction. Background Art

[0002] As the name suggests, building construction is a housing construction project, which refers to an engineering entity that is planned and designed, and installs and constructs various types of building structures and their ancillary facilities according to drawings. In the construction of building construction, it is necessary to deal with construction on the top of the building or at high locations. It is often difficult for workers to carry out construction directly at such construction sites, and it is necessary to use high-altitude construction platforms to carry construction workers and assist in high-altitude operations.

[0003] After searching the invention patent with patent number CN114961198B, a building construction work platform is disclosed, including a platform body, the platform body includes an operating platform and a support frame, the support frame is supported on the bottom of the operating platform; an extension device is provided on the operating platform, the extension device includes a translation plate movably connected to the operating platform and a positioning structure for fixing the translation plate, the positioning structure includes a positioning block movably connected to the side wall of the operating platform and a positioning groove opened at a corresponding position on the translation plate, when the translation plate extends outside the operating platform, the positioning block is positioned in the positioning groove; it also relates to a construction method of a building construction work platform. In this application, the translation plate can be stored in the operating platform, and moved out of the operating platform when it is needed, and the movable positioning block is positioned in the positioning groove on the translation plate to achieve the fixation of the translation plate after sliding, thereby improving the stability of the translation plate when it is in the extended position, thereby adjusting the use area of ​​the work platform, reducing the number of times the work platform is moved during construction, and helping to improve construction efficiency.

[0004] The building construction platform used in the above patents and prior art background still has certain shortcomings, such as: 1. In the above patent, when the construction platform is expanded, the translation plate and the matching plate are moved to the two ends of the operating platform respectively, and the positioning blocks are positioned in the positioning grooves on the translation plate to be fixed after sliding. However, the above platform expansion method needs to be operated before construction, and it is impossible to achieve real-time free adjustment during the construction process, which affects the flexibility of the construction platform in use; 2. Existing construction platforms are often built by scaffolding, and the platform expansion construction method requires the sequential assembly of multiple scaffolding accessories. The construction platform expansion method in the above patent requires the sliding of the translation plate first and then the fixing after sliding. However, the platform expansion methods of both are relatively cumbersome and cannot achieve automatic locking after the platform is adjusted and expanded, which affects the convenience of operation and subsequent work efficiency; Therefore, we propose a high-altitude expansion platform for building construction to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a high-altitude expansion platform for building construction, so as to solve the problems proposed in the above-mentioned background technology that the real-time free adjustment of the platform expansion cannot be achieved during the construction process, and the automatic locking of the platform after adjustment and expansion cannot be achieved, which affects the convenience in operation.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-altitude expansion platform for building construction, comprising: A main platform, wherein guardrails are fixedly arranged on both the front and rear sides of the main platform, and a guardrail door for going up and down is arranged in the middle of the front guardrail; Also includes: Auxiliary platform, the front and rear sides of the auxiliary platform are fixed with guardrails, which are arranged symmetrically with respect to the vertical central axis of the main platform, and the auxiliary platform is connected to the assembly ring frame in the main platform through the auxiliary rotation of the positioning ring, which can be adjusted in angle, and is easy to assist in construction operations; An external exhibition stand, wherein guardrails are fixedly arranged on both sides of the front and rear sides and on the outside of the external exhibition stand, and the external exhibition stand forms a sliding structure on the auxiliary platform, which can be adjusted to expand the construction platform outward; The linked drive mechanism is fixedly arranged on the lower side wall of the table plate of the auxiliary platform, and is used for real-time free and flexible adjustment of the auxiliary platform and the external exhibition stand, and it can be conveniently and automatically locked after adjustment.

[0007] Preferably, the positioning ring is fixedly connected to the semicircular end of the auxiliary platform by means of bolts, and the positioning ring is assembled on the ring frame in the main platform with the assistance of balls to form a rotating structure.

[0008] Preferably, the linked drive mechanism comprises a frame, a reversing frame, a worm member and a screw member, the frame is fixedly connected to the lower side wall of the table plate of the auxiliary platform by bolts, the reversing frame is slidably connected in the middle shell cavity of the longitudinal shell portion of the frame, and the front end of the longitudinal frame body in the reversing frame is fixedly connected to the output end of the electric telescopic rod by bolts, and the electric telescopic rod is fixedly installed on the longitudinal shell portion in the frame by bolts; The first bevel gear and the second bevel gear are respectively connected to the front and rear transverse frames of the reversing frame through bearing-assisted rotation, and a bevel gear driving member for driving is arranged between the first bevel gear and the second bevel gear, and the front side of the bevel gear driving member is connected to the first bevel gear in a meshing manner, and the rear side of the bevel gear driving member is connected to the second bevel gear in a meshing manner; Wherein, a worm member is connected to the shell cavity of the front transverse shell portion of the shell frame through the auxiliary rotation of a bearing, and a screw member is connected to the shell cavity of the rear transverse shell portion of the shell frame through the auxiliary rotation of a bearing; Among them, the bevel gear drive is connected to the middle shell cavity wall of the longitudinal shell part in the shell frame through the auxiliary rotation of the bearing, the bevel gear drive is fixedly connected to the output end of the motor through bolts, and the motor is fixedly installed on the middle lower shell wall of the longitudinal shell part in the shell frame through bolts.

[0009] Preferably, an integrated shaft frame is provided at the center of the semicircular end of the main platform, and the shaft frame is assisted by a bearing to form a rotating structure on the shell cavity wall of the front transverse shell portion in the shell frame; Wherein, the lower end of the shaft frame part is fixedly connected with a worm gear part by bolts, and the worm gear part is connected with the worm segment in the worm gear part in a meshing manner.

[0010] Preferably, a first transmission rod is rotatably connected in the middle shell cavity of the longitudinal shell portion of the shell frame through a bearing-assisted rotation, and the middle rod body of the first transmission rod is arranged in a spline-shaped structure, and the front and rear ends of the first transmission rod are rotatably connected to the first bevel gear and the second bevel gear respectively.

[0011] Preferably, spline grooves are provided in the tubular cavities of the first bevel gear central axis tube portion and the second bevel gear central axis tube portion, and the spline groove in the first bevel gear is connected to the front section of the spline section of the first transmission rod by a snap-fitting manner, and the spline groove in the second bevel gear is connected to the rear section of the spline section of the first transmission rod by a snap-fitting manner.

[0012] Preferably, the rear end of the first transmission rod is fixedly connected with a third bevel gear by means of bolts, and the left side of the third bevel gear is meshedly connected with a fourth bevel gear, and the fourth bevel gear is fixedly connected to the right end of the screw rod by means of bolts; The screw rod is threadedly connected to the tube groove wall of the driving block, and the driving block forms a sliding structure on the rear transverse shell portion of the shell frame, and the upper end connecting plate of the driving block is fixedly connected to the lower side wall of the platform of the external exhibition stand by bolts.

[0013] Preferably, a toggle frame is flipped and connected in the shell cavity of the front section of the longitudinal shell portion of the shell frame, and a toggle spring is installed at the connection between the toggle frame and the shell frame; The front end of the toggle frame is slidably connected with a linkage block, and the linkage block forms a telescopic sliding structure in the front shell cavity of the longitudinal shell portion in the shell frame, and a return spring is installed at the connection between the linkage block and the shell frame; Wherein, a pushing block is provided at the head end of the linkage block in a pressed fit, and the pushing block is fixedly connected to the output rod body of the electric telescopic rod by bolts.

[0014] Preferably, the rear end of the toggle frame is slidably connected to an annular seat, and a fifth bevel gear is rotatably connected in the tubular cavity of the annular seat through a bearing, and the fifth bevel gear is meshed and connected with the left side of the bevel gear driving member; Wherein, a spline groove is provided in the tube cavity of the fifth bevel gear middle shaft tube portion, a second transmission rod is slidably connected in the tube cavity of the fifth bevel gear middle shaft tube portion, and the second transmission rod is fixedly connected to the right end of the worm member by a bolt; Wherein, the rod body of the second transmission rod is arranged in a spline-shaped structure, and the spline rod body of the second transmission rod is connected to the spline groove in the fifth bevel gear in a snap-fit ​​manner.

[0015] Compared with the prior art, the invention has the following beneficial effects: the high-altitude expansion platform for building construction is different from the traditional fixed platform, and can realize the adaptive free adjustment of the platform angle during use, and realize the adaptive free adjustment of the platform expansion outward, thereby increasing the use area of ​​the platform, assisting construction personnel to better approach the construction site at high altitude, and can also realize real-time automatic adjustment during construction, thereby ensuring the convenience of adjustment operation; 1. It is equipped with a secondary platform and an external exhibition stand. The positioning ring movable card is set on the assembly ring frame in the main platform. Ball bearings are set at the connection between the positioning ring and the assembly ring frame and the connection between the assembly ring frame and the semicircular end of the secondary platform. With the assistance of the positioning ring, the secondary platform forms a rotating structure on the main platform, and the platform angle can be freely adjusted during use. Different from the traditional fixed platform, it can assist construction workers to better approach the construction site at high altitude, facilitate the use of complex construction sites, and ensure the flexibility of the high-altitude platform; Furthermore, through the mutual cooperation between the wedge-shaped strips in the external exhibition platform and the wedge-shaped grooves in the auxiliary platform, the external exhibition platform forms a sliding structure on the auxiliary platform, and the platform can be freely adjusted to expand outward during use. Different from the traditional fixed platform, it can effectively increase the use area of ​​the platform, provide better and larger construction space for construction workers, and greatly improve the application scope of the high-altitude platform; 2. A worm member and a lead screw member are provided. Through the meshing action between the bevel gear driving member and the fifth bevel gear, and through the clamping action between the fifth bevel gear and the second transmission rod, the bevel gear driving member is driven by the motor to rotate, which drives the worm members to rotate. Through the meshing action between the worm member and the worm wheel member, the auxiliary platform is driven to rotate on the main platform. The angle adjustment operation of the auxiliary platform on the main platform is controlled by electric drive, without manual adjustment. It can cooperate to realize real-time automatic adjustment during construction, ensuring the convenience of adjustment operation; Furthermore, when the electric telescopic rod drives the reversing frame to move, the pushing block loses the squeezing of the linkage block, and the cooperation between the toggle frame and the annular seat is utilized to make the annular seat drive the fifth bevel gear to slide on the second transmission rod, and the fifth bevel gear is separated from the bevel gear driving member. When the bevel gear driving member is engaged with the first bevel gear, the first bevel gear and the first transmission rod are engaged, and the third bevel gear and the fourth bevel gear are driven to rotate the lead screw member. Conversely, when the bevel gear driving member is engaged with the second bevel gear, the lead screw member is driven to rotate in the opposite direction, that is, the driving block is controlled to slide back and forth. The sliding expansion or sliding folding operation of the exhibition stand is controlled by electric drive. The setting of the linkage structure is utilized to optimize the overall structure and ensure the use effect of real-time automatic adjustment. Furthermore, after the auxiliary platform is rotated and adjusted, the self-locking characteristics between the worm and the worm wheel are utilized, and after the external exhibition platform is slid and adjusted, the automatic locking process after adjustment is realized by utilizing the automatic characteristics between the lead screw and the drive block, thereby effectively improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front view of the three-dimensional structure of the present invention; Figure 2 It is a bottom-up stereoscopic structural diagram of the connection between the auxiliary platform and the linked driving mechanism of the present invention; Figure 3 This is a schematic diagram of the front view of the three-dimensional structure of the main platform and the auxiliary platform of the present invention; Figure 4 It is a schematic diagram of a side cross-sectional three-dimensional structure of the connection between the worm member and the worm wheel member of the present invention; Figure 5 It is a schematic diagram of the side cross-section three-dimensional structure of the connection between the auxiliary platform and the external exhibition stand of the present invention; Figure 6 It is a schematic diagram of a top-view cross-sectional three-dimensional structure of the linkage drive mechanism of the present invention; Figure 7 It is a schematic diagram of a top-view cross-sectional three-dimensional structure of the connection between the commutator, the first bevel gear and the second bevel gear of the present invention; Figure 8 It is a schematic diagram of the front cross-sectional three-dimensional structure of the connection between the housing frame and the bevel gear drive member of the present invention; Fig. 9 It is a schematic diagram of a top-view cross-sectional three-dimensional structure of the connection between the housing frame and the screw rod member of the present invention; Fig.10 It is a schematic diagram of a top-view cross-sectional three-dimensional structure of the connection between the toggle frame and the linkage block of the present invention; Fig.11 It is a schematic diagram of the top view of the three-dimensional structure of the connection between the linkage block and the frame of the present invention.

[0017] In the figure: 1, main platform; 101, shaft frame; 2, auxiliary platform; 201, positioning ring; 3, external exhibition stand; 4, linked driving mechanism; 5, shell frame; 6, reversing frame; 7, electric telescopic rod; 8, first bevel gear; 9, second bevel gear; 10, bevel gear driving member; 1001, motor; 11, worm gear; 12, lead screw member; 13, worm wheel member; 14, first transmission rod; 15, third bevel gear; 16, fourth bevel gear; 17, driving block; 18, toggle frame; 19, torsion spring; 20, linked block; 21, reset spring; 22, pushing block; 23, annular seat; 24, fifth bevel gear; 25, second transmission rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-11 The present invention provides a technical solution: a high-altitude expansion platform for building construction, including a main platform 1, a secondary platform 2, an external exhibition platform 3 and a linked driving mechanism 4.

[0020] When the high-altitude expansion platform for building construction is in use, the main platform 1 is specifically used for a scissor-type lift truck (the above-mentioned scissor-type lift truck is a prior art and is not described in the drawings of the specification), the linkage drive mechanism 4 is in a horizontal state, and is fixedly arranged on the lower side wall of the table plate of the secondary platform 2, which can respectively operate and control the secondary platform 2 and the external exhibition platform 3, and make free and flexible adjustments in real time, and can perform convenient automatic locking processing after adjustment, the secondary platform 2 is arranged symmetrically with respect to the vertical central axis of the main platform 1, and is connected to the assembly ring frame in the main platform 1 through the auxiliary rotation of the positioning ring 201, and is controlled and operated by the linkage drive mechanism 4, and can be adjusted in angle, which is easy to assist in construction operations, and the external exhibition platform 3 constitutes a sliding structure on the secondary platform 2, and is controlled and operated by the linkage drive mechanism 4, and can be adjusted to expand the construction platform outward; Specifically, when the angle of the auxiliary platform 2 is adjusted by the linkage drive mechanism 4, according to the attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 8 and Fig. 9As shown, the shell frame 5 is arranged in a "U"-shaped structure, and is divided into three parts in sequence: a longitudinal shell portion, a front transverse shell portion and a rear transverse shell portion, which are fixedly connected to the lower side wall of the table plate of the sub-platform 2 by bolts. Since the middle part of the bevel gear drive member 10 is provided with an integrated shaft tube portion, wherein a bearing is fixedly clamped on the shaft tube portion, after the bevel gear drive member 10 is installed, the bearing moves through the middle shell cavity wall of the longitudinal shell portion in the shell frame 5, and is positioned in an active state. Moreover, since the motor 1001 is fixedly installed on the lower shell wall of the middle shell portion of the longitudinal shell portion in the shell frame 5 by bolts after installation, it is in a vertical upward state, wherein the output end is plugged into the shaft tube portion in the bevel gear drive member 10, and the bevel gear drive member 10 is fixedly connected to the output end of the motor 1001 by bolts, the motor 1001 is started to operate, and the bevel gear drive member 10 is driven to rotate in the middle shell cavity of the longitudinal shell portion in the shell frame 5; Since the fifth bevel gear 24 is meshed and connected with the left side of the bevel gear driving member 10, the bevel gear driving member 10 is placed between the first bevel gear 8 and the second bevel gear 9. At this time, the first bevel gear 8 and the second bevel gear 9 are not meshed and connected with the bevel gear driving member 10, that is, the bevel gear driving member 10 is not affected by the first bevel gear 8 and the second bevel gear 9, and only drives the fifth bevel gear 24. When the bevel gear driving member 10 is driven to rotate, the fifth bevel gear 24 is driven to rotate through meshing. Since the middle part of the fifth bevel gear 24 is provided with an integrated shaft tube part, one end of which is fixedly clamped with a bearing, and the other end of which is sleeved with a fixed limit ring, after the fifth bevel gear 24 is installed, the bearing and the limit ring are movably inserted through the tube cavity of the annular seat 23, so that the fifth bevel gear 24 is positioned on the annular seat 23 in an active state. When the fifth bevel gear 24 is driven, it rotates in the tube cavity of the annular seat 23 with the assistance of the bearing. Even if the fifth bevel gear 24 is not affected by the annular seat 23 during rotation, the annular seat 23 only drives the fifth bevel gear 24 to form a sliding structure; Since a spline groove is provided in the lumen of the axial tube portion of the fifth bevel gear 24, and since the rod body of the second transmission rod 25 is arranged in a spline-shaped structure, the spline rod body is connected with the spline groove in the fifth bevel gear 24 by a snap-fitting manner, when the fifth bevel gear 24 is driven to rotate, the second transmission rod 25 and the fifth bevel gear 24 form a synchronous rotation structure through the snap-fitting action, that is, the second transmission rod 25 is driven to rotate; Since the bearing is fixedly clamped on the rod body of the worm member 11, and the left end thereof is sleeved and fixed with a limit ring, the worm member 11 is arranged so that the bearing and the limit ring are movably inserted into the housing cavity of the front transverse housing portion in the housing frame 5. Since the second transmission rod 25 is fixedly connected to the right end of the worm member 11 by bolts, an integrated structure is formed, and the second transmission rod 25 drives the worm member 11 to move synchronously, so that the worm member 11 rotates in the housing cavity of the front transverse housing portion in the housing frame 5 with the assistance of the bearing; Since the end of the main platform 1 close to the auxiliary platform 2 is arranged in a semicircular structure, the left and right semicircular ends are fixedly connected with an assembly ring frame by bolts, wherein the assembly ring frame is arranged in a vertical downward state, and since the end of the auxiliary platform 2 close to the main platform 1 is arranged in a semicircular structure, it is adapted to the semicircular end of the main platform 1, and the semicircular end of the auxiliary platform 2 is fixedly connected with a positioning ring 201 by bolts, and the longitudinal section of the ring wall in the positioning ring 201 is an "L"-shaped structure. After the auxiliary platform 2 is placed, its semicircular end fits and overlaps the semicircular end of the main platform 1, wherein the positioning ring 201 is movably clamped in the ring cavity of the assembly ring frame in the main platform 1, so that the auxiliary platform 2 is positioned on the main platform 1 in an active state with the assistance of the positioning ring 201; Since an integrated shaft frame 101 is provided at the center of the semicircular end of the main platform 1, the center of the shaft frame 101 coincides with the rotation center of the auxiliary platform 2, and a bearing is fixedly clamped at its lower end. After the shaft frame 101 is placed, it is vertically downward, and its lower end movably passes through the semicircular end through hole in the auxiliary platform 2, and is inserted into the left end shell cavity wall of the front transverse shell part in the shell frame 5 with the bearing, forming a rotating structure. In addition, since the lower end of the shaft frame 101 is sleeved and fixedly connected with a worm gear 13 by bolts, and the worm gear 13 is connected to the worm segment in the worm member 11 in a meshing manner, after the worm member 11 is driven to rotate, since the worm gear 13 is set in a fixed state, the meshing action between the worm member 11 and the worm gear 13 makes the worm member 11 move around the worm gear 13, and the shaft frame 101 is assisted by the bearing to rotate on the shell cavity wall of the front transverse shell part in the shell frame 5; Since balls are arranged at equal intervals at the connection between the secondary platform 2 and the assembly ring frame in the main platform 1, balls are arranged at equal intervals at the connection between the positioning ring 201 and the assembly ring frame in the main platform 1, and since guardrails are fixedly arranged on both the front and rear sides of the main platform 1, and a guardrail door for going up and down is arranged in the middle of the front guardrail, guardrails are fixedly arranged on both the front and rear sides of the secondary platform 2, and the guardrails in the secondary platform 2 are arranged corresponding to the guardrails in the main platform 1, through the cooperation between the worm member 11 and the worm wheel member 13, the positioning ring 201 is assisted by balls to rotate on the assembly ring frame in the main platform 1, and the secondary platform 2 is rotated and flipped on the main platform 1 to complete the adaptive adjustment of the angle, and the angle is adjusted in the opposite direction by driving the worm member 11 to rotate in the opposite direction. In addition, the self-locking characteristics between the worm member 11 and the worm wheel member 13 are utilized to complete the automatic locking after the angle adjustment; Specifically, when the external exhibition stand 3 is adjusted to expand outward through the linkage drive mechanism 4, according to the attached Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, the electric telescopic rod 7 is installed on the longitudinal shell portion of the shell frame 5 by bolts after being installed, and is arranged in a horizontal backward state. Since the pushing block 22 is sleeved and connected to the output rod body of the electric telescopic rod 7 by bolts after being installed, the electric telescopic rod 7 is started to extend and operate, so that the electric telescopic rod 7 drives the pushing block 22 to move backward, and the pushing block 22 loses the pressure fit with the head end of the linkage block 20; Since the front end of the linkage block 20 is extended outward after placement, and the front and rear sides of the front end are both arc chamfered, and since the front and rear sides of the pushing block 22 close to one end of the linkage block 20 are both provided with inclined side walls, when the pushing block 22 moves, the linkage block 20 is easily pushed and pressed by the cooperation between the inclined side walls of the pushing block 22 and the arc chamfers of the linkage block 20; After the linkage block 20 is installed, it is movably mounted in the front shell cavity of the longitudinal shell portion in the shell frame 5. Since a return spring 21 is installed at the connection between the linkage block 20 and the shell frame 5, the return spring 21 is arranged at the front, rear, upper and lower corners of the linkage block 20. After installation, one end of the return spring 21 is clamped on the linkage block 20, and the other end of the return spring 21 is clamped on the front shell cavity wall of the longitudinal shell portion in the shell frame 5. When the linkage block 20 is pressed, it is arranged in a contracted state, and its return spring 21 is squeezed and elastically deformed. When the linkage block 20 loses the pressure of the pushing block 22, the elastic deformation of the return spring 21 is used to reset, so that the linkage block 20 slides out in the front shell cavity of the longitudinal shell portion in the shell frame 5. Since the front end of the toggle frame 18 is provided with a slide groove, and since the tail end of the linkage block 20 is fixedly connected with a pin, the tail end is movably clamped at the front end of the toggle frame 18 after being placed, and the pin movably penetrates through the front end slide groove of the toggle frame 18. After the linkage block 20 slides out, the pin in the linkage block 20 slides in the front end slide groove of the toggle frame 18, and the linkage block 20 loses its push on the toggle frame 18, pulling the toggle frame 18 to move; Since the middle part of the toggle frame 18 is rotatably connected with an axle column, it is movably mounted in the front shell cavity of the longitudinal shell portion in the shell frame 5 after being placed, and the axle column is inserted and fixedly connected to the front shell cavity wall of the longitudinal shell portion in the shell frame 5 by bolts. In addition, since a torsion spring 19 is installed at the connection between the toggle frame 18 and the shell frame 5, the torsion spring 19 is symmetrically arranged up and down about the horizontal center axis of the toggle frame 18. After being placed, it is movably sleeved on the axle column in the toggle frame 18 and placed in the spring bin of the toggle frame 18, and one end of it is clamped on the spring bin wall, and the other end of it is clamped on the front shell cavity wall of the longitudinal shell portion in the shell frame 5. When the toggle frame 18 is pushed, the toggle frame 18 is flipped to make the torsion spring 19 elastically deformed by being squeezed. When the toggle frame 18 loses the pushing of the linkage block 20, the elastic deformation of the torsion spring 19 is used to reset, so that the toggle frame 18 is reset and flipped in the front shell cavity of the longitudinal shell portion in the shell frame 5. Since the rear end of the toggle frame 18 is provided with a slide groove, and since the upper and lower sides of the annular seat 23 are fixedly connected with pins, after being placed, it is movably clamped in the frame cavity at the rear end of the toggle frame 18, and the pins movably penetrate the slide groove in the middle and rear end of the toggle frame 18. After the toggle frame 18 is reset and flipped, the pins in the annular seat 23 slide in the slide groove in the rear end of the toggle frame 18, and the annular seat 23 is driven to move; Since the second transmission rod 25 is connected to the tube cavity of the axial tube part of the fifth bevel gear 24 in a movable and penetrating manner after being installed, the annular seat 23 drives the fifth bevel gear 24 to move synchronously when sliding, so that the axial tube part of the fifth bevel gear 24 slides along the second transmission rod 25, and the fifth bevel gear 24 is separated from the bevel gear driving member 10 and loses the meshing effect; Since the reversing frame 6 is in a "U"-shaped structure, the cross section of the longitudinal frame is in an "I"-shaped structure. After the reversing frame 6 is installed, the longitudinal frame is movably mounted on the wall of the middle shell cavity of the longitudinal shell portion in the shell frame 5, and is positioned in an active state. Moreover, since the front end of the longitudinal frame is sleeved and fixedly connected to the output end of the electric telescopic rod 7 by bolts after the reversing frame 6 is installed, when the electric telescopic rod 7 is extended and operated, the pushing block 22 is driven to drive the reversing frame 6 to move, so that the reversing frame 6 slides backward in the middle shell cavity of the longitudinal shell portion in the shell frame 5; Since the middle part of the first bevel gear 8 is provided with an integrated shaft tube part, one end of which is fixedly connected with a bearing, and the other end of which is sleeved with a limit ring, after the first bevel gear 8 is arranged, the bearing and the limit ring are movably inserted through the front transverse frame of the reversing frame 6, so that the first bevel gear 8 is positioned on the reversing frame 6 in an active state. In addition, since a bevel gear driving member 10 for driving is provided between the first bevel gear 8 and the second bevel gear 9, after the reversing frame 6 slides backward, the first bevel gear 8 contacts the bevel gear driving member 10, and the second bevel gear 9 and the bevel gear driving member 10 are separated and not in contact, and the first bevel gear 8 is connected to the front side of the bevel gear driving member 10 in a meshing manner, and the motor 1001 is started to work. Through the meshing action, the first bevel gear 8 is assisted by the bearing to rotate on the front transverse frame of the reversing frame 6; Since the middle section of the first transmission rod 14 is provided with a spline-shaped structure, after the first transmission rod 14 is installed, the front and rear sections of the rod respectively move through the middle shaft tube of the first bevel gear 8 and the middle shaft tube of the second bevel gear 9, and since a spline groove is provided in the lumen of the middle shaft tube of the first bevel gear 8, when the first bevel gear 8 is driven to contact the bevel gear driving member 10, the spline groove in the first bevel gear 8 is connected with the front section of the spline section of the rod body of the first transmission rod 14 in a snap-fit ​​manner, and the second bevel gear 9 loses contact with the rear section of the spline section of the rod body of the first transmission rod 14. At this time, the second bevel gear 9 is connected with the rear end of the first transmission rod 14 in a rotational manner. When the first bevel gear 8 rotates, the first transmission rod 14 is driven to move through the snap-fit ​​action between the first bevel gear 8 and the first transmission rod 14. Since the front and rear ends of the first transmission rod 14 are fixedly clamped with bearings, after being installed, the first transmission rod 14 is movably inserted into the middle shell cavity of the longitudinal shell portion of the shell frame 5 with the bearings, and its rear end is movably inserted into the rear shell cavity of the longitudinal shell portion of the shell frame 5. Since the third bevel gear 15 is sleeved and fixedly connected to the rear end of the first transmission rod 14 by bolts after being installed, after the first transmission rod 14 is driven, the first transmission rod 14 is assisted by the bearings to rotate in the middle shell cavity of the longitudinal shell portion of the shell frame 5, and the first transmission rod 14 drives the third bevel gear 15 to rotate synchronously; Since the left side of the third bevel gear 15 is meshedly connected with the fourth bevel gear 16, the fourth bevel gear 16 is sleeved and fixedly connected to the right end of the screw rod 12 by bolts after being installed, and since the left and right ends of the screw rod 12 are fixedly clamped with bearings, it is installed and movably inserted into the shell cavity of the rear transverse shell part of the shell frame 5 with the bearing, and its right end is movably inserted into the rear shell cavity of the longitudinal shell part of the shell frame 5, through the meshing action between the third bevel gear 15 and the fourth bevel gear 16, the screw rod 12 is assisted by the bearing to rotate in the shell cavity of the rear transverse shell part of the shell frame 5; Since the longitudinal section of the driving block 17 is in a "convex" shape, a connecting plate of an integrated structure is arranged at its upper end. After the driving block 17 is installed, the wide portion thereof is movably clamped in the shell cavity of the rear transverse shell portion in the shell frame 5, and the narrow portion thereof is movably inserted through the slide groove of the rear transverse shell portion in the shell frame 5 and the slide groove on the table plate in the secondary platform 2 in turn, and is positioned in an active state. Moreover, since after the driving block 17 is installed, the connecting plate thereof is attached to the lower side wall of the table plate of the external exhibition platform 3, the two are fixedly connected together by bolts, and the screw rod 12 is threadedly connected to the pipe groove wall of the driving block 17. After the screw rod 12 is driven, the screw rod 12 is threadedly connected to the driving block 17, so that the driving block 17 slides on the rear transverse shell portion in the shell frame 5, and the electric telescopic rod 7 drives the external exhibition platform 3 to move; Since both front and rear ends of the tabletop in the secondary platform 2 are provided with connecting plates of an integrated structure, wherein the connecting plates are provided with wedge-shaped grooves matched with the wedge-shaped strips in the external exhibition platform 3, and since the end of the external exhibition platform 3 close to the main platform 1 is a semi-arc structure, its semi-arc end is matched with the semicircular end of the main platform 1, and guardrails are fixedly provided on its front and rear sides and on the outside, the inner frame walls on the front and rear sides of the external exhibition platform 3 are provided with wedge-shaped strips of an integrated structure, which are fitted and overlapped on the tabletop of the secondary platform 2 after being installed, and are placed between the two guardrails in the secondary platform 2, and the wedge-shaped strips are movably clamped in the wedge-shaped grooves in the secondary platform 2, so that the external exhibition platform 3 is positioned on the secondary platform 2 in an active state, and the external exhibition platform 3 is driven to slide and unfold on the secondary platform 2 to complete the outward expansion adjustment of the external exhibition platform 3, and the self-locking characteristics between the screw rod 12 and the driving block 17 are used to complete the automatic locking after the outward expansion adjustment; According to the above, since the middle part of the second bevel gear 9 is provided with an integrated shaft tube part, one end of which is fixedly connected with a bearing, and the other end of which is sleeved with a fixed limit ring, after the second bevel gear 9 is arranged, the bearing and the limit ring are movably inserted through the rear transverse frame of the reversing frame 6, so that the second bevel gear 9 is positioned on the reversing frame 6 in an active state. In addition, since the second bevel gear 9 and the first bevel gear 8 are arranged in a relative state, both facing the bevel gear driving member 10, the electric telescopic rod 7 is started to retract and operate, so that the pushing block 22 and the linkage block 20 lose the pressure fit, and the toggle frame 18 drives the annular seat 23 to move. After the annular seat 23 drives the fifth bevel gear 24 to move, it loses engagement with the bevel gear driving member 10. After the electric telescopic rod 7 is retracted and operated, the reversing frame 6 is driven to slide forward, so that the first bevel gear 8 loses engagement with the bevel gear driving member 10, and the rear side of the bevel gear driving member 10 is connected with the second bevel gear 9 in an engaged manner; Since spline grooves are provided in the lumen of the axial tube portion of the second bevel gear 9, after the second bevel gear 9 is meshed with the bevel gear driving member 10, the spline grooves in the second bevel gear 9 are connected to the rear section of the spline section of the first transmission rod 14 by means of a snap fit. At this time, the first bevel gear 8 is connected to the front end of the first transmission rod 14 by means of a rotation. Through the meshing action between the bevel gear driving member 10 and the second bevel gear 9, the second bevel gear 9 is assisted by the bearing to rotate on the rear transverse frame of the reversing frame 6. When the second bevel gear 9 drives the first transmission rod 14 to rotate synchronously, the transmission of the third bevel gear 15 and the fourth bevel gear 16 is utilized to drive the screw member 12 to rotate in the opposite direction, and the driving block 17 drives the external exhibition platform 3 to slide and fold on the auxiliary platform 2, thereby completing the inward folding adjustment of the external exhibition platform 3. This is the entire working process of the high-altitude expansion platform for building construction. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0021] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high altitude expansion platform for building construction, comprising: A main platform (1), wherein guardrails are fixedly arranged on both the front and rear sides of the main platform (1), and a guardrail door for going up and down is arranged in the middle of the front guardrail; It is characterized by further comprising: A secondary platform (2), wherein guardrails are fixedly arranged on both the front and rear sides of the secondary platform (2), and the secondary platform (2) is arranged symmetrically with respect to the vertical center axis of the main platform (1), and the secondary platform (2) is connected to the assembly ring frame in the main platform (1) through the auxiliary rotation of the positioning ring (201), and the secondary platform (2) can be adjusted in angle, which is easy to assist in construction operations; An external exhibition platform (3), wherein guardrails are fixedly arranged on both sides of the front and rear sides and on the outside of the external exhibition platform (3), and the external exhibition platform (3) forms a sliding structure on the auxiliary platform (2), which can be adjusted to expand the construction platform outward; A linked drive mechanism (4) is fixedly arranged on the lower side wall of the platform of the auxiliary platform (2), and is used for real-time free and flexible adjustment of the auxiliary platform (2) and the external exhibition platform (3), and can be conveniently and automatically locked after adjustment.

2. The high altitude expansion platform for building construction according to claim 1, characterized in that: The positioning ring (201) is fixedly connected to the semicircular end of the auxiliary platform (2) by means of bolts, and the positioning ring (201) is assembled on the ring frame in the main platform (1) with the assistance of balls to form a rotating structure.

3. The high altitude expansion platform for building construction according to claim 1 is characterized in that: The linked drive mechanism (4) comprises a frame (5), a reversing frame (6), a worm member (11) and a screw member (12); the frame (5) is fixedly connected to the lower side wall of the table plate of the auxiliary platform (2) by means of bolts; the reversing frame (6) is slidably connected in the middle shell cavity of the longitudinal shell portion of the frame (5); the front end of the longitudinal frame body of the reversing frame (6) is fixedly connected to the output end of the electric telescopic rod (7) by means of bolts; and the electric telescopic rod (7) is fixedly mounted on the longitudinal shell portion of the frame (5) by means of bolts; The first bevel gear (8) and the second bevel gear (9) are respectively connected to the front and rear transverse frames of the reversing frame (6) via bearing-assisted rotation, and a bevel gear driving member (10) for driving is provided between the first bevel gear (8) and the second bevel gear (9), and the front side of the bevel gear driving member (10) is connected to the first bevel gear (8) in a meshing manner, and the rear side of the bevel gear driving member (10) is connected to the second bevel gear (9) in a meshing manner; A worm member (11) is connected to the housing cavity of the front transverse housing portion of the housing frame (5) via a bearing to assist rotation, and a lead screw member (12) is connected to the housing cavity of the rear transverse housing portion of the housing frame (5) via a bearing to assist rotation. The bevel gear drive member (10) is rotationally connected to the middle shell cavity wall of the longitudinal shell portion of the shell frame (5) via a bearing, the bevel gear drive member (10) is fixedly connected to the output end of the motor (1001) via bolts, and the motor (1001) is fixedly mounted on the middle lower shell wall of the longitudinal shell portion of the shell frame (5) via bolts.

4. The high altitude expansion platform for building construction according to claim 2 is characterized in that: An integrated shaft frame portion (101) is provided at the center of the semicircular end of the main platform (1), and the shaft frame portion (101) is assisted by a bearing to form a rotating structure on the shell cavity wall of the front transverse shell portion of the shell frame (5); The lower end of the shaft frame portion (101) is fixedly connected to a worm wheel component (13) via bolts, and the worm wheel component (13) is connected to a worm segment in the worm component (11) in a meshing manner.

5. The high altitude expansion platform for building construction according to claim 3 is characterized in that: A first transmission rod (14) is rotatably connected in a middle shell cavity of the longitudinal shell portion of the shell frame (5) through the assistance of a bearing, and the middle rod body of the first transmission rod (14) is arranged in a spline-shaped structure, and the front and rear ends of the first transmission rod (14) are rotatably connected to the first bevel gear (8) and the second bevel gear (9) respectively.

6. The high altitude expansion platform for building construction according to claim 5 is characterized in that: A spline groove is provided in the tube cavity of the central axis tube portion of the first bevel gear (8) and the central axis tube portion of the second bevel gear (9), and the spline groove in the first bevel gear (8) is connected to the front section of the spline section rod body of the first transmission rod (14) by means of a snap fit, and the spline groove in the second bevel gear (9) is connected to the rear section of the spline section rod body of the first transmission rod (14) by means of a snap fit.

7. The high altitude expansion platform for building construction according to claim 5, characterized in that: The rear end of the first transmission rod (14) is fixedly connected to a third bevel tooth (15) by means of bolts, and the left side of the third bevel tooth (15) is meshingly connected to a fourth bevel tooth (16), and the fourth bevel tooth (16) is fixedly connected to the right end of the screw rod (12) by means of bolts; The screw rod (12) is threadedly connected to the wall of the tube groove of the driving block (17), and the driving block (17) forms a sliding structure on the rear transverse shell portion of the shell frame (5), and the upper end connecting plate of the driving block (17) is fixedly connected to the lower side wall of the platform of the external exhibition platform (3) by bolts.

8. The high altitude expansion platform for building construction according to claim 3 is characterized in that: A toggle frame (18) is flipped and connected in the shell cavity of the front section of the longitudinal shell portion of the shell frame (5), and a toggle spring (19) is installed at the connection between the toggle frame (18) and the shell frame (5); The front end of the toggle frame (18) is slidably connected to a linkage block (20), and the linkage block (20) forms a telescopic sliding structure in the front shell cavity of the longitudinal shell portion in the shell frame (5), and a return spring (21) is installed at the connection between the linkage block (20) and the shell frame (5); A pushing block (22) is provided at the head end of the linkage block (20) in a pressed and fitted manner, and the pushing block (22) is fixedly connected to the output rod body of the electric telescopic rod (7) by means of bolts.

9. The high altitude expansion platform for building construction according to claim 8, characterized in that: The rear end of the toggle frame (18) is slidably connected to an annular seat (23), and a fifth bevel gear (24) is rotatably connected in the tubular cavity of the annular seat (23) via a bearing, and the fifth bevel gear (24) is meshed and connected with the left side of the bevel gear driving member (10); A spline groove is provided in the tube cavity of the central axis tube portion of the fifth bevel gear (24), a second transmission rod (25) is slidably connected in the tube cavity of the central axis tube portion of the fifth bevel gear (24), and the second transmission rod (25) is fixedly connected to the right end of the worm member (11) by means of a bolt; The rod body of the second transmission rod (25) is arranged in a spline-shaped structure, and the spline rod body of the second transmission rod (25) is connected to the spline groove in the fifth bevel gear (24) in a snap-fit ​​manner.

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