Building free face lifting construction operation platform

Abstract

The invention discloses a building free face lifting construction operation platform. The lifting construction operation platform comprises a structure base, a supporting stand column, a horizontal cross arm, a ferry trolley and a construction hanging basket. The supporting stand column is fixedly arranged on the structural base. An adapter barrel is arranged in the middle of the supporting stand column, at least one horizontal cross arm is movably connected with the adapter barrel through a connecting end, and the horizontal cross arm can rotate around the adapter barrel; the ferry trolley is arranged on the horizontal cross arm and can move in the axial direction of the horizontal cross arm. And the construction hanging basket is hung on the ferry trolley. The working platform is good in structural stability, light in weight, convenient to assemble, disassemble and transport and capable of efficiently implementing external facade updating work.

Description

Technical Field

[0001] The present application belongs to the field of engineering construction technology, and in particular relates to a construction work platform for lifting construction work on the free surface of a building or structure. Background Art

[0002] At present, urban development is in a golden period of transition from incremental expansion to stock optimization, and the implementation of urban renewal has become the main theme of building livable and resilient cities. When renewing old buildings, the indoor construction of the buildings does not involve high-altitude operations, but the aging problem of their facades (facing the air) is a key issue that needs to be solved urgently.

[0003] The common scaffolding method used for building facade renovation has a long cycle, while other machinery such as rail-mounted platform vehicles are heavy and not suitable for later renovation applications, and the cost is high, which is not conducive to the efficient renovation of building facades. For the renovation of the facades of existing buildings, a set of assembled and lightweight construction equipment and technical processes are required to meet the requirements of safe and efficient renovation construction of building facades. Summary of the invention

[0004] The purpose of this application is to solve the problem of safe and efficient operation of the empty surface renewal operations of the facades of old buildings. This application provides a lifting construction work platform for the empty surface of a building, which has good structural stability and is light in weight, easy to install and transport, and can efficiently implement facade renewal operations.

[0005] The purpose of this application is achieved through the following technical solutions:

[0006] A lifting construction work platform for an open-air surface of a building structure, the lifting construction work platform comprising: a structural base, a supporting column, a horizontal cross arm, a ferry trolley and a construction hanging basket;

[0007] The supporting column is fixedly arranged on the structural base;

[0008] A transfer cylinder is provided in the middle of the support column, at least one horizontal cross arm is movably connected to the transfer cylinder via a connecting end, and the horizontal cross arm can rotate around the transfer cylinder;

[0009] The ferry trolley is arranged on the horizontal cross arm and can move axially along the horizontal cross arm;

[0010] The construction hanging basket is hung on the ferry trolley.

[0011] According to a preferred embodiment, the horizontal cross arm connection end is provided with three connection fulcrums, namely a first connection fulcrum, a second connection fulcrum and a third connection fulcrum;

[0012] The second connection fulcrum and the third connection fulcrum are located in the same horizontal plane, and the first connection fulcrum is located on the top side of the second connection fulcrum and the third connection fulcrum. The first connection fulcrum, the second connection fulcrum and the third connection fulcrum form three vertices of an equilateral triangle.

[0013] According to a preferred embodiment, the adapter cylinder has a cylindrical cylinder shell, an inner slide groove is provided on the inner side of the top of the adapter cylinder, the slot opening of the inner slide groove faces the center of the adapter cylinder, and the slot of the inner slide groove is provided with a horizontally arranged rack;

[0014] The outer wall of the adapter cylinder is provided with an outer slide groove arranged along the circumference of the adapter cylinder, and the opening of the outer slide groove is arranged toward the top end direction of the adapter cylinder;

[0015] A horizontally arranged inner support arm is provided at the end of the first connection support point, and a horizontally arranged rolling gear is provided on the inner support arm, and the rolling gear is driven by a motor provided on the horizontal cross arm;

[0016] The inner support arm is arranged inside the cylinder of the transfer cylinder, and the rolling gear is meshed with the rack in the inner slide groove;

[0017] A vertical support arm is also provided on the first connection fulcrum, a vertical wheel is provided at the end of the vertical support arm, the vertical support arm extends into the outer slide groove, and the vertical wheel is rollingly connected to the groove bottom of the outer slide groove.

[0018] According to a preferred embodiment, horizontal support wheels are provided at the ends of the second connection fulcrum and the third connection fulcrum, and the horizontal support wheels are in contact with the outer surface of the adapter cylinder and can rotate horizontally around the outer surface of the adapter cylinder.

[0019] According to a preferred embodiment, a circular horizontally arranged partition is provided on the surface of the cylinder shell, and the partition is located at the bottom side of the horizontal support wheel to complete the horizontal limiting and vertical supporting of the horizontal support wheel.

[0020] According to a preferred embodiment, a winch is provided on the horizontal cross arm, and the winch drives the ferry trolley via a steel pull rope.

[0021] According to a preferred embodiment, the horizontal cross arm is composed of a plurality of steel trusses spliced ​​together.

[0022] The top of the steel truss is a steel truss cross arm, and the bottom is a frame structure, and the steel truss cross arm and the frame structure are connected by diagonal braces;

[0023] Open-type butt joint plates are fixed at both ends of the steel truss cross arms, and the butt joint plates of adjacent steel trusses at the splicing positions are plugged and connected to each other.

[0024] According to a preferred embodiment, the support column is connected to the movable end of the horizontal cross arm via an inclined cable, and a basket bolt is provided in the middle of the inclined cable.

[0025] According to a preferred embodiment, the structural base is formed by splicing support beams to form a cross-shaped structure, four sleeves are provided on the top side of the cross-shaped structure, and each vertical column of the standard section at the bottom end of the support column is inserted into the sleeve.

[0026] According to a preferred embodiment, a counterweight is optionally provided on the upper side of the end of each support beam, a ground brake is provided on the lower side of the end of the support beam, and a plurality of universal wheels are also provided on the bottom side of each support beam.

[0027] The aforementioned main scheme of the present application and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and claimed for protection in the present application. After understanding the scheme of the present application, those skilled in the art can understand that there are multiple combinations based on the prior art and common knowledge, all of which are technical schemes to be protected by the present application, and they are not exhaustively listed here.

[0028] Beneficial effects of this application:

[0029] 1. The working platform of this application adopts an overall self-balancing structure, and no counterweight is required; 2. The horizontal cross arm and the transfer cylinder produce a four-way support effect, and the position deflection is achieved through gear meshing, making the operation of the device more stable and reliable; 3. The device is lightweight and assembled, which is convenient for transportation, production and installation, and easy to operate. 4. Solve the problem of operating support on the aerial surface of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall layout of this application operation platform;

[0031] Figure 2 It is a schematic diagram of the horizontal cross arm structure;

[0032] Figure 3 It is a schematic diagram of the structure of standard steel truss parts;

[0033] Figure 4 It is a schematic diagram of steel truss splicing;

[0034] Figure 5 It is a schematic diagram of the structure of the transfer cylinder;

[0035] Figure 6 It is a schematic diagram of the position relationship between the transfer cylinder and the horizontal cross arm;

[0036] Figure 7 It is a schematic diagram of the connection node between the transfer cylinder and the standard section;

[0037] Figure 8 It is a schematic diagram of the structure base structure;

[0038] Fig. 9 It is a schematic diagram of a simple mechanical model;

[0039] Among them, 1-support column, 101-standard section, 102-angle steel, 2-horizontal cross arm, 201-steel truss, 2011-steel truss cross arm, 2012-docking hole plate, 2013-diagonal brace, 2014-pin shaft, 2015-docking hole position, 202-motor, 203-support arm, 204-rolling gear, 205-vertical support arm, 206-horizontal support wheel, 207-winch, 208- Pulling plate, 209-steel pull rope, 210-fixed pulley, 3-transfer cylinder, 301-cylinder shell, 302-inner slide groove, 303-rack, 304-outer slide groove, 305-partition, 4-inclined cable, 401-basket bolt, 5-structural base, 501-support beam, 502-bolt, 503-sleeve, 504-ground brake, 505-universal wheel, 6-ferry trolley, 7-construction hanging basket, 8-counterweight. DETAILED DESCRIPTION

[0040] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0044] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In addition, the present application would like to point out that, in the present application, unless the specific structure, connection relationship, positional relationship, power source relationship, etc. are specifically written out, the structure, connection relationship, positional relationship, power source relationship, etc. involved in the present application are all known by those skilled in the art on the basis of the prior art without creative work.

[0046] refer to Figures 1 to 9 As shown, the present application discloses a lifting construction work platform for the free surface of a building structure, and the lifting construction work platform includes: a structural base 5, a supporting column 1, a horizontal cross arm 2, a inclined cable 4, a ferry trolley 6 and a construction hanging basket 7.

[0047] The supporting column 1 is fixedly arranged on the structural base 5; a connecting cylinder 3 is provided in the middle part of the supporting column 1, at least one horizontal cross arm 2 is movably connected to the connecting cylinder 3 via a connecting end, and the horizontal cross arm 2 can rotate around the connecting cylinder 3; the supporting column 1 is connected to the movable end of the horizontal cross arm 2 via an inclined cable 4; the ferry trolley 6 is arranged on the horizontal cross arm 2 and can move axially along the horizontal cross arm 2; the construction hanging basket 7 is hung on the ferry trolley 6.

[0048] The horizontal cross arm structure is as follows Figure 2 As shown, the main structure of the horizontal arm is formed by splicing steel trusses 201, and the steel trusses are welded by steel rectangular tubes and steel round tubes to form a frame structure, which is used to support the construction hanging basket operation. A vertical component is connected to the rectangular tube at the top of the horizontal arm near the side of the transfer cylinder, and a vertical support arm 205 is installed below the component. A C-shaped inner support arm 203 is connected to the outside of the vertical support arm 205, and the lower end of the support arm is open and embedded with a rolling gear 204. A motor 202 is installed on the top of the support arm, which can drive the rolling gear 204 to rotate, thereby driving the horizontal horizontal arm 2 to rotate around the transfer cylinder 3.

[0049] The horizontal cross arms can be arranged symmetrically in two pieces, or four pieces can be distributed along the central axis of the standard section. When efficient work is required, the four horizontal cross arms can support four construction hanging baskets to work simultaneously. Due to the stabilizing effect of the structural base and the balance relationship between the horizontal cross arms, the overall device does not need to be equipped with a counterweight. The number of horizontal cross arms 2 is N, N ≥ 1.

[0050] A pair of horizontal support wheels 206 are installed on the same side of the support arm of the rectangular tube at the bottom of the horizontal arm, and a winch 207 is installed on the same side. The winch is connected to a steel pull rope 209, which passes through multiple fixed pulleys 210 fixed inside the horizontal horizontal arm and finally connects to the ferry trolley 6 to form a circular closed transmission system. When working, the winch can rotate forward and reverse to drive the ferry trolley to move forward and backward on the horizontal arm.

[0051] A tie plate 208 is welded to the upper section of the rectangular tube at the top of the horizontal cross arm, and the inclined cable 4 is used to tie the horizontal cross arm and the supporting column 1 together. A basket bolt 401 is also connected to the middle of the inclined cable 4, and the tension of the cable is controlled by the basket bolt 401.

[0052] Steel truss structure Figure 3 As shown, the top is a steel truss cross arm 2011, which is a hollow rectangular tube, and the bottom is a frame structure composed of hollow rectangular tubes. The top cross arm and the bottom frame are connected by diagonal braces. The cross section of the diagonal braces is circular, and each span has four diagonal braces 2013. One end of each diagonal brace is welded at one place on the bottom surface of the steel truss cross arm 2011, and the other end is welded to the bottom frame in a radiating shape. Open-type docking holes 2012 are fixed at both ends of the top steel rectangular tube, and the docking holes of two adjacent steel trusses at the splicing position can be plugged into each other.

[0053] The cross-section of the steel truss cross arm 2011 is relatively large and is in tension when in operation. This component can be made of high-strength steel pipes, carbon fibers, basalt fiber reinforcements, etc. with relatively high tensile strength, and the diagonal brace 2013 can be made of lighter components.

[0054] like Figure 4 As shown, when adjacent steel trusses are spliced, the upper end is first plugged with the butt plate, and then the pin 2014 is inserted for fixing. There are also butt holes 2015 on both sides of the bottom steel frame. When the structure is spliced, the butt holes of the two steel trusses are aligned and then fixed with bolts.

[0055] The schematic diagram of the transfer cylinder structure is as follows Figure 5As shown, the shell 301 of the cylinder is a cylindrical shell, and a circle of annular partitions 305 are welded on the waist of the outer surface of the shell, and a circle of outer slide grooves 304 are welded above the partition, and the cross section of the slide groove is L-shaped. Four groups of inner slide grooves 302 are welded on the inner wall at the top of the transfer cylinder 3, which are arranged 90° apart along the axial direction of the cylinder. The cross section of the inner groove is arc-shaped, and the module is grooved on the inside, and arc-shaped racks 303 are installed in the grooves.

[0056] The rack 303 is engaged with the rolling gear 204 to realize rotation. The inner slide groove 302 is a C-shaped component with an opening facing inwards.

[0057] The shell 301 of the cylinder can be made of carbon steel or alloy steel, with a shell wall thickness of 5-10mm. When making it, it is first cut into rectangular plates, then rolled into a cylinder by a plate rolling machine and the interface is welded. When cutting, the width of the rectangular plate should be less than the height of a standard section, so that the height of the final formed transfer cylinder is less than the height of the standard section.

[0058] When installing the horizontal cross arm 2, the rolling gear 204 of the inner support arm 203 is extended into the inner slide groove 302, and the rolling gear 204 is meshed with the arc-shaped rack 303. Then the vertical support arm 205 of the horizontal cross arm 2 is placed in the outer slide groove 304, so that the wheel body can move in an arc in the outer slide groove. At this time, the horizontal support wheel 206 of the cross arm is close to the outer wall of the cylinder shell 301, and the annular partition 305 provides horizontal and vertical support for it, such as Figure 6 shown.

[0059] Components such as the partition plate 305, the L-shaped outer slide groove 304, and the C-shaped inner slide groove 302 also have the function of reinforcing the cylinder body, thereby enhancing the rigidity of the cylinder wall.

[0060] like Figure 7 As shown, the standard section 101 column is tangent to the inner wall of the cylinder shell 301, and is placed in the gap between the adjacent inner chutes 302, and the side of the column is close to the side walls of the two inner chutes. When installing the transfer cylinder, first insert the cylinder into the lower standard section, so that the bottom of the inner chute 302 is located on the standard section angle steel 102, and then adjust the radial angle of the transfer cylinder so that the gap between the inner chutes is aligned with the position of the standard section column. Finally, lower the upper standard section, insert the upper standard section column into the gap between the chutes in the transfer cylinder, and then lock the upper and lower standard sections. At this time, the transfer cylinder is installed.

[0061] In order to prevent shaking between the standard section 101 and the cylinder shell 301, a flexible sleeve such as rubber can be added to the outside of 101 to enhance friction and improve stability.

[0062] Furthermore, the standard section 101 can be set as a retractable adjustable structure or a large and small sleeve structure to achieve the jacking of the standard section, thereby achieving the lifting and lowering of the column to adapt to different application scenarios.

[0063] The schematic diagram of the structural base is as follows: Figure 8 As shown, its structure is formed by splicing support beams 501, and the support beams are connected by high-strength bolts 502. Four sleeves 503 are installed above the splicing node position. The column 1 of the standard section 101 can be inserted into the sleeve, and then the standard section is fixed by a pin. A plurality of universal wheels 505 are installed at the bottom of the support beam 501, so that the whole device can move freely on the roof. 505 has a positioning and stabilizing device, which can be braked and locked after being fixed. A ground brake 504 is also installed on the outside of the universal wheel. When the device moves to the working position, the ground brake is activated to make the device still.

[0064] The structural base support beam 501 can be a steel structure beam or a precast concrete structure beam, and the connection head is a socket structure for easy installation and disassembly. It can also be a composite component with a reserved channel in the middle, and the connection is reinforced by prestressing. The beam section can be divided into 8-12 sections. When an 8-section beam section is selected, it can be divided into two main beams and 6 secondary beams. The two main beams are full-length beam sections; when a 12-section beam section is selected, each beam section is divided into 8 outer beam sections and 4 central beam sections.

[0065] The structural base is spliced ​​into a "well" shape by support beams 501, and the standard section is located on the node support of the spliced ​​support beams. There are gaps between the 4 groups of trough modules, and the gap space is just enough for the standard section column 101 to pass through, so that the device as a whole can provide more constraints on the circumferential direction of the transfer cylinder after installation, thereby improving the stability of the device. The counterweight block 8 is placed on the structural base 5 and is arranged symmetrically with the horizontal cross arm 2 in the horizontal direction. The counterweight block 8 can change the position of the weight according to the adjustment during use. The counterweight block 8 can be a freely combined weight block, and the weight of a single block should be able to be transferred by a single person by hand.

[0066] The transportation and installation process of the working platform in this application includes:

[0067] The device can be disassembled into multiple components before installation and transported to the roof by manpower or elevator. First, the structural base 5 is assembled, then the standard section 101 is assembled, and then the installation of the transfer cylinder 3, horizontal cross arm 2, ferry trolley 6 and other structures are completed in sequence. Finally, the construction hanging basket 7 is hung on the ferry trolley to complete the installation work before the facade is updated.

[0068] When assembling the structural base, first install universal wheels 505 with equal spacing at the bottom of each beam segment, and install a ground brake 504 at the bottom of the outer beam end. When assembling the beam segment, first close the ground brake, move each beam segment to the assembly area and assemble in a "well" shape, and fix the beam segments with high-strength bolts. Then open the ground brake 504, so that the structural base is in a static state on the roof, and install the four sleeves 503 on the top of the beam segment joint. Finally, place the counterweight 8 on the outer beam segment of the structural base.

[0069] When installing the device body, first place the bottom standard section on the structural base 5, insert the standard section column 101 into the sleeve 503, and then pass the sleeve and the standard section column through the bolt to complete the installation of the bottom standard section. Then hang the upper standard section above the bottom standard section and overlap it, and connect the adjacent standard sections through bolts or bolts.

[0070] After the installation of the 2-3 standard sections is completed, the adapter cylinder 3 is inserted into the lower standard section so that the bottom of the inner slide groove 302 is seated on the standard section angle steel 102, and then the radial angle of the adapter cylinder is adjusted so that the gap between the inner slide grooves is aligned with the position of the standard section column. Finally, the upper standard section is lowered, and the upper standard section column is inserted into the gap between the slide grooves in the adapter cylinder, and then the upper and lower standard sections are locked to complete the installation of the adapter cylinder.

[0071] After the installation of the transfer cylinder 3 is completed, the inner support arm 203 is inserted into the slide groove 302 in the cylinder, so that the rolling gear 204 and the rack 303 are meshed, and the vertical support arm 205 is placed in the outer slide groove 304, and then the motor 202 is installed on the top of the inner support arm 203. Then the first section of the steel truss 201 is installed along the inner support arm 203, so that the horizontal support wheel 206 is in contact with the outer wall of the cylinder shell 301. Then the steel trusses of the remaining sections are installed in sequence. When the steel trusses are spliced, the docking hole plate is first plugged in at the upper end, fixed by the pin shaft 2014, and then the bottom docking hole position 2015 is aligned and fixed by bolts. Then a plurality of fixed pulleys 210 are installed on the steel truss of the horizontal cross arm.

[0072] After the installation of the horizontal cross arm is completed, the winch 207 is installed inside the first steel truss, and the ferry trolley 6 is installed from the free end of the horizontal cross arm, and then the steel pull rope 209 in the winch 207 is continuously inserted into each fixed pulley 210 and the ferry trolley 6, and the rope section inserted into the ferry trolley is fixed to the trolley, and finally the steel pull rope is reeled back into the winch.

[0073] One end of the inclined cable 4 is connected to the tie plate 208 of the horizontal cross arm, and the other end is connected to the tie plate of the top standard section.

[0074] When installing the construction hanging basket 7, four steel pull ropes are drawn from the four columns of the hanging basket, and the four steel pull ropes are connected to the four corners of the ferry trolley 6.

[0075] After the overall installation of the working platform is completed, the motor 202 is driven to move the horizontal cross arm 2 to the required working angle, and the rolling gear, vertical and horizontal supporting wheel bodies are locked, and then the construction hanging basket is lowered. When the construction hanging basket is lowered to the height of the working surface, the winch 207 is driven to adjust the distance between the hanging basket and the working surface. After completing the facade renovation work of a vertical working surface, the hanging basket is lifted to the roof, and then the motor is driven to deflect the horizontal cross arm to the angle position of the next working surface, and continuous work is performed according to this method.

[0076] When the work platform is dismantled, the construction basket 7 is first lifted to the roof, the ferry trolley 6 is driven to retract the construction basket to the roof, and the steel rope under the ferry trolley is removed to complete the dismantling of the construction basket. Then the bolts connected at both ends of the inclined cable 4 are removed to complete the dismantling of the inclined cable 4. Then the steel rope 209 is cut off at the connection, and the steel rope is pulled out from the fixed pulley 210 and the ferry trolley 6 in turn, and the ferry trolley 6 and the winch 207 are dismantled. When the horizontal cross arm is dismantled, the steel truss 201 is removed from the free end to the fixed end in turn. The dismantling method is to first remove the bolts on the docking hole 2015, and then remove the pin 2014. Then the inner support arm 203 is removed from the adapter cylinder 3. When the adapter cylinder 3 is dismantled, the upper standard section is first removed, and then the adapter cylinder 3 is vertically lifted upward, and the lower standard section is dismantled in turn. Then take off the counterweight 8, remove the high-strength bolts at the beam section connection, and then disassemble the universal wheel 505 and the ground brake at the bottom of each beam section. Finally, each component of the device is moved to the ground by elevator or manpower.

[0077] If the structure of the front and rear arms is considered, mechanical analysis can yield the following results: Fig. 9 Model diagram shown. Where L1 is the length of the front cross arm, L2 is the length of the standard section, L3 is the length of the bottom support member, L4 is the length of the rear cross arm, q1 is the gravity load of the cross arm, q2 is the gravity load of the standard section, G is the counterweight mass, and F is the total weight of the hanging platform. Take q1 = 200KN / m, q2 = 2000KN / m, F = 8000KN, L2 is an integer multiple of the standard section length of 1.5m, perform moment balance calculation on one end of the bottom support rod, and obtain the length relationship between L3 and L1 and L4.

[0078]

[0079] When L1 = 15m, L4 = 10m, without counterweight, L3 = 0.78m; with counterweight, L3 = 8.47m.

[0080] The working platform of this application adopts an overall self-balancing structure, which does not require the addition of counterweights; the horizontal cross arm and the transfer cylinder produce a four-way support effect, and the position deflection is achieved through gear meshing, making the operation of the device more stable and reliable; the device is lightweight and assembled, which is convenient for transportation, production and installation, and easy to operate. It solves the problem of operating support on the aerial surface of high-altitude operations.

[0081] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A construction platform for lifting construction work on the free surface of a building, characterized in that: The lifting construction work platform comprises: a structural base (5), a supporting column (1), a horizontal cross arm (2), a ferry trolley (6) and a construction hanging basket (7); The supporting column (1) is fixedly arranged on the structural base (5); A transfer cylinder (3) is provided in the middle of the support column (1), at least one horizontal cross arm (2) is movably connected to the transfer cylinder (3) via a connecting end, and the horizontal cross arm (2) can rotate around the transfer cylinder (3); The ferry trolley (6) is arranged on the horizontal cross arm (2) and is capable of axially moving along the horizontal cross arm (2); The construction hanging basket (7) is hung on the ferry trolley (6).

2. The lifting construction work platform according to claim 1, characterized in that: The connecting end of the horizontal cross arm (2) is provided with three connecting fulcrums, namely a first connecting fulcrum, a second connecting fulcrum and a third connecting fulcrum; The second connection fulcrum and the third connection fulcrum are located in the same horizontal plane, and the first connection fulcrum is located on the top side of the second connection fulcrum and the third connection fulcrum. The first connection fulcrum, the second connection fulcrum and the third connection fulcrum form three vertices of an equilateral triangle.

3. The lifting construction work platform as claimed in claim 2, characterized in that: The adapter cylinder (3) has a cylindrical cylinder shell (301), an inner slide groove (302) is provided on the inner side of the top of the adapter cylinder (3), the groove body opening of the inner slide groove (302) faces the center of the adapter cylinder (3), and the groove body of the inner slide groove (302) is provided with a horizontally arranged rack (303); The outer wall of the adapter cylinder (3) is provided with an outer slide groove (304) arranged along the circumference of the adapter cylinder (3), and the opening of the outer slide groove (304) is arranged toward the top end direction of the adapter cylinder (3); A horizontally arranged inner support arm (203) is provided at the end of the first connection fulcrum, and a horizontally arranged rolling gear (204) is provided on the inner support arm (203), and the rolling gear is driven by a motor (202) provided on the horizontal cross arm (2); The inner support arm (203) is arranged inside the cylinder body of the adapter cylinder (3), and the rolling gear (204) is meshed with the rack (303) in the inner slide groove (302); A vertical support arm (205) is also provided on the first connection fulcrum, a vertical wheel is provided at the end of the vertical support arm (205), the vertical support arm (205) extends into the outer slide groove (304), and the vertical wheel is rollingly connected to the bottom of the outer slide groove (304).

4. The lifting construction work platform as claimed in claim 3, characterized in that: Horizontal support wheels (206) are provided at the ends of the second connection fulcrum and the third connection fulcrum. The horizontal support wheels (206) are in contact with the outer surface of the transfer cylinder (3) and can rotate in the horizontal direction around the outer surface of the transfer cylinder (3).

5. The lifting construction work platform as claimed in claim 4, characterized in that: The surface of the cylinder shell (301) is provided with an annular horizontally arranged partition (305), and the partition (305) is located on the bottom side of the horizontal support wheel (206) and is used to complete the horizontal limit and vertical support of the horizontal support wheel (206).

6. The lifting construction work platform according to claim 1, characterized in that: A winch (207) is provided on the horizontal cross arm (2), and the winch (207) drives the ferry trolley (6) via a steel pull rope (209).

7. The lifting construction work platform according to claim 1, characterized in that: The horizontal cross arm (2) is composed of a plurality of steel trusses (201) spliced ​​together. The top of the steel truss (201) is a steel truss cross arm (2011), and the bottom is a frame structure, and the steel truss cross arm (2011) and the frame structure are connected by a diagonal brace (2013); Open-type butt joint plates (2012) are respectively fixed at both ends of the steel truss cross arm (2011), and the butt joint plates (2012) at the splicing positions of adjacent steel trusses (201) are plugged and connected to each other.

8. The lifting construction work platform according to claim 1, characterized in that: The supporting column (1) is connected to the movable end of the horizontal cross arm (2) via an inclined cable (4), and a turnbuckle bolt (401) is provided in the middle of the inclined cable (4).

9. The lifting construction work platform according to claim 1, characterized in that: The structural base (5) is formed by splicing support beams (501) to form a cross-shaped structure. Four sleeves (503) are provided on the top side of the cross-shaped structure. Each vertical column of the standard section (101) at the bottom end of the support column (1) is inserted into the sleeves (503).

10. The lifting construction work platform according to claim 9, characterized in that: A counterweight (8) is optionally arranged on the upper side of the end of each support beam (501), a floor brake (504) is arranged on the lower side of the end of the support beam (501), and a plurality of universal wheels (505) are also arranged on the bottom side of each support beam (501).

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