Supporting and protecting device for construction elevator in hoistway and lifting method

Abstract

The invention provides an in-shaft construction elevator supporting and protecting device and a lifting method, and belongs to the technical field of in-shaft elevator construction, the in-shaft construction elevator supporting and protecting device comprises at least two second protecting cages, the second protecting cages are arranged in an upper-lower opening mode, the two adjacent second protecting cages are detachably connected in a butt joint mode, and each second protecting cage comprises an aluminum formwork, a vertical frame structure and a second cage inner rail; the vertical frame structure is arranged above the aluminum formwork, and the second in-cage rail is arranged on the inner side of the vertical frame structure. The supporting protection device has the beneficial effects that the first protection cage is arranged and connected through the driving equipment to increase the height, so that the supporting protection device in the construction elevator shaft can synchronously increase the height along with the construction progress, and the two second protection cages continuously turn over below the supporting protection device; and supporting is conducted through the second protection cage and the cured shaft inner structure, the problem that a traditional construction elevator protection measure lags behind along with rise of the floors is effectively solved, and the problem that the strength of concrete of the newly-built shaft inner structure is insufficient is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator construction in a hoistway, and particularly relates to a support and protection device and a lifting method for a construction elevator in a hoistway. Background Art

[0002] In the field of modern building construction, especially in the construction of high-rise and super-high-rise residential buildings, as the core equipment for vertical transportation, the performance of a construction elevator is directly related to construction efficiency, cost, and safety. The indoor construction elevator using the elevator hoistway is quieter, faster, more efficient, and energy-saving compared with the traditional external elevator.

[0003] However, the construction elevator in the hoistway has obvious limitations in the construction of high-rise residential buildings. The traditional method is to build a support structure in the hoistway and then extend the standard track upward for docking. For example, after the operation layer is lifted, the hoistway structure is formed by pouring concrete. Since it takes about a week for the concrete to cure to have the corresponding bearing capacity, at this time, due to the limitation of the concrete structure strength, the support and the standard track cannot directly reach the structure construction operation layer, and the machine room for lifting the car on the standard track also occupies a certain space, that is, the machine room is on the (N - 1)th floor below the operation Nth floor. The construction elevator car can only reach the (N - 2)th operation floor at most, and each lift requires 2 - 3 days for installation and adjustment. At the same time, the support and protection effect of the car standard track is also relatively poor, which has a great impact on the comprehensive vertical transportation efficiency, thus restricting its wide application in the construction of high-rise residential buildings. Summary of the Invention

[0004] In view of this, the embodiments of the present invention provide a support and protection device and a lifting method for a construction elevator in a hoistway, which are used to solve the problem that it is inconvenient to install and protect the standard track of the car of the existing indoor construction elevator that cannot directly reach the construction operation layer.

[0005] The embodiments of the present invention provide a support and protection device and a lifting method for a construction elevator in a hoistway, including: at least two second protection cages, which are open at the top and bottom and are detachably docked with adjacent second protection cages. The second protection cage includes an aluminum formwork, a vertical frame structure, and a second inner cage track. The vertical frame structure is arranged above the aluminum formwork, the second inner cage track is arranged inside the vertical frame structure, and the end of the second inner cage track has a docking node for docking with the car standard track;

[0006] The first protective cage, the first protective cage includes an aluminum formwork, a vertical frame structure, a first inner cage track and a connecting frame, the connecting frame is connected to the vertical frame structure, the connecting frame is connected to a driving device, so that the driving device can tow the first protective cage to climb in height, for towing the first protective cage to rise to the working layer with the progress of construction, the second inner cage track has the same structure as the first inner cage track, both of which can be used as a temporary track after being docked with the car standard track, for the car to rise in height inside it, with the cooperation of the first protective cage and the two second protective cages in continuous turnover, it can provide a temporary track for the car to rise to the standard floor with the progress of construction.

[0007] Further, the vertical frame structure includes a cage frame, web members and a surrounding rod, the web members are arranged inside the cage frame, and the surrounding rod is wrapped outside the cage frame and is connected to the web members at the same time.

[0008] Further, the first protective cage further includes a lifting device, the lifting device is arranged on the connecting frame, and is used to control the lifting and lowering of the car in the track.

[0009] Further, the aluminum formwork is provided with through holes penetrating up and down, so that the aluminum formwork is in the shape of a double-square frame, and its inner side wall protrudes inwardly with a trapezoidal protrusion, and the vertical frame structure is connected to the protrusion.

[0010] Further, the inner wall of the aluminum formwork at the through hole is provided with a positioning groove, a pre-tightening seat is arranged in the positioning groove, and the pre-tightening seat is connected to the first inner cage track.

[0011] Further, reinforcing ribs are arranged in the positioning groove, and the reinforcing ribs reinforce the four right-angled sides of the through hole.

[0012] Further, the cage frame is in the shape of a rectangular frame, and the web members and the surrounding rod are welded to the cage frame.

[0013] Further, elevator shaft structures are arranged outside both the first protective cage and the second protective cage.

[0014] Further, the aluminum formwork is in contact with the elevator shaft structure.

[0015] A method for lifting a construction elevator in a shaft, using the construction elevator support and protection device in the shaft as described in any one of claims 1-9, and including the following steps:

[0016] S1: Complete the construction of the N-1 floor structure, where N is an integer greater than or equal to 4;

[0017] S2: Erect the formwork for the Nth floor;

[0018] S3: The protective cage is lifted by the driving device: After the Nth floor is built, the first protective cage is at the (N - 1)th floor, and the two second protective cages are at the (N - 2)th and (N - 3)th floors. The protective cage at the (N - 1)th floor and the protective cage at the (N - 2)th floor are quickly disassembled and separated, and then the protective cage at the (N - 1)th floor is connected to the driving end of the driving device. The driving device drives the protective cage at the (N - 1)th floor to perform a lifting operation;

[0019] S4: Continue to lift the protective cage until the protective cage at the (N - 1)th floor is lifted to the Nth floor position and fixed;

[0020] S5: Demolish the protective cage at the (N - 3)th floor and transfer it to the (N - 1)th floor: Demolish the protective cage at the (N - 3)th floor and transfer it to the (N - 1)th floor;

[0021] S6: Install the protective cage at the (N - 1)th floor and remove the side formwork of the well - beam at the (N - 3)th floor: Install and position the second protective cage on the (N - 1)th floor, and at the same time, remove the side formwork of the well - beam at the (N - 3)th floor;

[0022] S7: After the original protective cage at the (N - 3)th floor is transferred upward, install the protective measures for the edge of the elevator shaft in the vacant section, and then install the standard track so that the standard track is butted downward with the already set standard track and upward with the second inner - cage track in the protective cage at the (N - 2)th floor;

[0023] S8: After the operations of the above steps, the entire construction elevator is lifted by one floor, and the construction elevator can operate normally to the Nth floor working surface;

[0024] Step 9: When the construction layer is lifted upward by one floor each time, repeat the lifting process of S1 - S8 above.

[0025] The beneficial effects brought by the technical solution provided by the embodiments of the present invention are as follows: For the support and protection device and lifting method of the construction elevator in the hoistway of the present invention, by setting the first protection cage to be connected and lifted in height through a driving device, the support and protection in the construction elevator hoistway can be lifted in height synchronously with the construction progress. And through the continuous turnover of the two second protection cages below it, relying on the second protection cage and the structure inside the hoistway that has completed maintenance for support, it effectively solves the problem that the traditional construction elevator protection measures lag behind as the floor height increases, and avoids the problem of insufficient concrete strength of the newly built structure inside the hoistway; The detachable and continuous docking design of the second protection cage with an open top and bottom and the first protection cage enhances the construction flexibility while ensuring the protection performance; Through the docking structure of the tracks inside the first cage and the tracks inside the second cage with the standard track of the car, the construction elevator can reach the operation layer directly, avoiding frequent position adjustment and significantly improving the construction efficiency; Through the welding design of the cage frame, web members and surrounding rods of the vertical frame structure, as well as the through holes, positioning grooves and reinforcing ribs of the aluminum formwork, the overall strength and stability of the protection cage are enhanced, ensuring construction safety; The overall structure is reasonable and the operation is convenient, significantly improving the safety and efficiency of the construction elevator during the construction of high-rise buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structure diagram of the support and protection device and lifting method of the construction elevator in the hoistway of the present invention;

[0027] Figure 2 is a three-dimensional structure diagram of the second protection cage of the support and protection device and lifting method of the construction elevator in the hoistway of the present invention;

[0028] Figure 3 is a top view of the second protection cage of the support and protection device and lifting method of the construction elevator in the hoistway of the present invention;

[0029] Figure 4 is a three-dimensional structure diagram of the first protection cage of the support and protection device and lifting method of the construction elevator in the hoistway of the present invention;

[0030] Figure 5 is a top view of the first protection cage of the support and protection device and lifting method of the construction elevator in the hoistway of the present invention;

[0031] Figure 6 is a schematic diagram of the elevator hoistway structure of the support and protection device and lifting method of the construction elevator in the hoistway of the present invention;

[0032] Figure 7 is a schematic diagram of the implementation process of the support and protection device and lifting method of the construction elevator in the hoistway of the present invention.

[0033] In the figure: 1. First protective cage; 11. Aluminum formwork; 111. Protrusion; 12. Vertical frame structure; 121. Cage frame; 122. Web member; 123. Surrounding rod; 131. First inner cage track; 132. Second inner cage track; 14. Positioning groove; 15. Reinforcing rib; 16. Pre-tightening seat; 17. Connecting frame; 18. Lifting device; 2. Second protective cage; 3. Standard car track; 4. Elevator shaft structure. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe the implementation manners of the present invention with reference to the accompanying drawings. The following introduces a relatively better one among multiple possible embodiments of the present invention, aiming to provide a basic understanding of the present invention, but not aiming to identify the key or decisive elements of the present invention or limit the scope to be protected.

[0035] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0036] For technologies, methods and devices known to those of ordinary skill in the relevant art, they may not be discussed in detail, but under appropriate circumstances, the said technologies, methods and devices should be regarded as part of the specification.

[0037] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. At the same time, it should be understood that for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship.

[0038] It should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Please refer to Figures 1 to 6 , the embodiment of the present invention provides a support and protection device and a lifting method for a construction elevator in a shaft, including a first protective cage 1 and at least two second protective cages 2.

[0040] The first protective cage 1 includes a vertical frame structure 12, a first inner cage track 131 and a connecting frame 17. The vertical frame structure 12 is used to enhance the external protection effect of the elevator in the hoistway. The first inner cage track 131 is arranged inside the vertical frame structure 12, and the end of the inner cage track 13 has a docking node for docking with the second protective cage 2.

[0041] The end cross-sections of the first inner cage track 131 and the car standard track 3 are the same, and the two are detachably connected by docking. Since their joint surfaces are the same, the first inner cage track 131 can be used as a temporary car track to extend the path of the car standard track 3.

[0042] Furthermore, the connecting frame 17 is connected to the driving device, which can be arranged on the equipment beams such as tower cranes and building construction machines, and is used to tow the first protective cage 1 to lift to the working layer along with the construction progress.

[0043] In the actual implementation process, when it is necessary to extend the standard car track 3, the driving device is controlled to drive the uppermost first protective cage 1 to lift to the working layer. Subsequently, the second protective cage 2 can be rotated upward to reserve a free section for the continuous docking of the car standard track 3.

[0044] The second protective cage 2 is provided with upper and lower openings, and two adjacent second protective cages 2 are detachably docked. The second protective cage includes an aluminum formwork 11, a vertical frame structure 12 and a second inner cage track 132. The end of the second inner cage track 132 has a docking node for docking with the car standard track.

[0045] Among them, docking nodes are provided at both the upper and lower ends of the second inner cage track 132. The upper docking node is used to dock with the first inner cage track 131, and the lower node is used to dock with the car standard track 3, so that the second inner cage tracks 132 in the two second protective cages 2 and the first inner cage track 131 can be continuously docked to serve as a temporary track for the car to lift height inside it.

[0046] It can be understood that the vertical frame structure 12 includes a cage frame 121, web members 122 and a surrounding rod 123. The web members 122 are arranged inside the cage frame 121, and the surrounding rod 123 is wrapped around the outside of the cage frame 121 and is connected to the web members 122 at the same time.

[0047] With such a design, the overall strength and stability of the vertical frame structure 12 are improved, and it can effectively resist the external forces that may occur during construction, such as the vibration generated by the concrete pumping pipeline during work, the heavy objects occasionally dropped during the operation of the tower crane, etc., thereby enhancing the protection of the construction elevator in the hoistway.

[0048] To control the height of the construction elevator car, the first protective cage 1 further includes a lifting device 18. The lifting device 18 is arranged on the connecting frame 17 and is used to lift the car that can move on the car standard track 3.

[0049] It should be noted that through holes are vertically formed through the aluminum formwork 11, so that the aluminum formwork 11 is in a shape of a double-square frame. A trapezoidal protrusion 111 protrudes inward from its inner side wall, and the vertical frame structure 12 is connected to the protrusion.

[0050] This design is because a certain space needs to be reserved for the initial size setting of the first protective cage 1 or the second protective cage 2. Therefore, in order to make the aluminum formwork 11 bear the force of the second protective cage 2, the protrusion 111 of the aluminum formwork 11 is connected to the vertical frame structure 12 of the second protective cage 2.

[0051] On the inner wall of the through hole of the aluminum formwork 11, a positioning groove 14 is formed. A pre-tightening seat 16 is arranged in the positioning groove 14. The pre-tightening seat 16 is connected to the first cage inner track 131. Reinforcing ribs 15 are arranged in the positioning groove 14, and the reinforcing ribs 15 reinforce the four right-angle sides of the through hole 111.

[0052] The arrangement of the reinforcing ribs 15 effectively enhances the strength of the aluminum formwork 11 at the right-angle sides, prevents problems such as deformation during use, and further improves the reliability and durability of the protection device.

[0053] The cage frame 121 is in a shape of a rectangular frame. The web members 122 and the surrounding members 123 are all welded to the cage frame 121. The welding connection method has the advantages of high strength and good stability, and can ensure that the vertical frame structure 12 maintains good performance during long-term use, providing a solid safety guarantee for the operation of the construction elevator.

[0054] In this embodiment, elevator shaft structures 4 are arranged outside both the first protective cage 1 and the second protective cage 2. The aluminum formwork 11 is in contact with the elevator shaft structure 4. The elevator shaft structure 4 is in an I-shaped structure and is formed outside the first protective cage 1 through a shaft formwork.

[0055] In the specific implementation process, since the elevator shaft structure 4 newly formed above the first protective cage 1 does not yet have the bearing capacity, the first protective cage 1 is connected to the driving device through the connecting frame 17, and the structure of the first protective cage 1 is directly borne by the driving device. The second protective cage 2 is connected to the lower-layer elevator shaft structure 4 that has completed curing through the outward extension of the aluminum formwork 11 at the lower end, so that the structure of the second protective cage 2 is borne by the elevator shaft structure 4 that already has the bearing capacity.

[0056] Please refer to Figure 5 , the lifting method of this embodiment:

[0057] Refer to Part a, Step 1: Before hoisting the construction elevator, ensure that the structural construction of the N-1 floor has been completely finished, and after inspection and acceptance, it complies with the elevator safety standards, where N is an integer greater than or equal to 4;

[0058] Refer to Part b, Step 2: Scaffolding erection on the Nth floor: Erection of the scaffolding is carried out on the Nth floor to provide support and a working platform for subsequent hoisting of the construction elevator and construction on the working floor;

[0059] The scaffolding is formed by pouring concrete templates and is completed after preliminary curing and hardening.

[0060] Refer to Part c of the figure, Step 3: Hoisting the height of the protective cage by the driving device: After the Nth floor is built, at this time the first protective cage 1 is on the N-1 floor. Quick-release separation is carried out between the protective cage on the N-1 floor and the protective cage on the N-2 floor (the second protective cage 2), and then the protective cage on the N-1 floor is connected to the driving device, and the driving device is used to drive the protective cage on the N-1 floor for hoisting operation;

[0061] The driving device is fixed on a tower crane, a building machine Bailey beam, etc., and is used to drive the first protective cage 1 to hoist the height from above. The driving device selects a hoisting device similar to the hoisting device.

[0062] Refer to Part d of the figure, Step 4: Continue hoisting the protective cage: Continue the hoisting operation until the protective cage on the N-1 floor is hoisted to the Nth floor position, that is, the first protective cage 1 always serves as the protective cage on the Nth floor, and it is fixed and inspected to ensure that the protective cage on the Nth floor does not shake;

[0063] Refer to Part e of the figure, Step 5: Demolish the protective cage on the N-3 floor and transfer it to the N-1 floor: Demolish the protective cage on the N-3 floor and transfer it to the N-1 floor for installation and use of the protective cage on the N-1 floor;

[0064] Refer to Part f of the figure, Step 6: Installation of the protective cage on the N-1 floor, removal of the side formwork of the well beam on the N-3 floor: Carry out the installation and positioning work of the protective cage on the N-1 floor, dock the connection node of the second protective cage 2 upwards with the first protective cage, and dock the connection node downwards with another second protective cage. At the same time, remove the side formwork of the well beam on the N-3 floor to prepare for subsequent track installation and hoisting operations;

[0065] Refer to Part g of the figure, Step 7: Install the standard track on the N-3 floor: After the original protective cage on the N-3 floor is transferred upwards in time, install the edge protection measures for the elevator shaft to ensure construction safety, and then install the standard track so that the standard track is docked downwards with the already set standard track and upwards with the second cage inner track 132 in the protective cage on the N-2 floor;

[0066] Refer to part of Figure h, Step 8: Overall lifting completed: After the operations in the above steps, the entire construction elevator has completed one - floor lifting. The construction elevator can operate normally to the N - floor working surface to provide vertical transportation services for high - rise building construction;

[0067] Step 9: When the construction floor is lifted one floor upward each time, repeat the lifting process from the first step to the eighth step above.

[0068] In the above - mentioned implementation method, the two second protective cages 2 are continuously rotated and reused for the N - 1 and N - 2 floors. Compared with the continuous process of building formwork and then demolishing and rebuilding in the prior art, its reuse rate is high and the construction period is short.

[0069] In this article, the front, back, up, down and other orientation words are defined based on the positions of the components in the drawings and the positions of the components relative to each other, just for the clarity and convenience of expressing the technical solution. It should be understood that they are relative concepts and can change accordingly according to different usage and placement methods. The use of the orientation words should not limit the scope of protection requested by the present invention.

[0070] Without conflict, the above - mentioned embodiments and the features in the embodiments in this article can be combined with each other.

[0071] The above - mentioned are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A support and protection device for a construction elevator in a hoistway, characterized in that: include: At least two second protection cages (2) are open at the top and bottom and two adjacent second protection cages (2) can be detachably docked, the second protection cage (2) comprising an aluminum template (11), a vertical frame structure (12) and a second cage inner track (132), the vertical frame structure (12) is arranged above the aluminum template (11), the second cage inner track (132) is arranged on the inner side of the vertical frame structure (12), and the end of the second cage inner track (132) has a docking node for docking with a car standard track (3); A first protective cage (1), the first protective cage (1) comprising an aluminum formwork (11), a vertical frame structure (12), a first cage inner track (131) and a connecting frame (17), the connecting frame (17) being connected to the vertical frame structure (12), the connecting frame (17) being connected to a driving device so that the driving device can pull the first protective cage (1) to climb in height, and is used to pull the first protective cage (1) to be raised to an operating layer as the construction progresses, the second cage inner track (132) having the same structure as the first cage inner track (131), both of which can be used as temporary tracks after docking with a car standard track (3) for the car to be raised in the first cage inner track, and the first protective cage (1) can cooperate with the two second protective cages (2) to continuously rotate, and can provide a temporary track for the car to be raised to a standard layer as the construction progresses.

2. The support and protection device for the construction elevator in the hoistway according to claim 1, characterized in that: The vertical frame structure (12) comprises a cage frame (121), a web bar (122) and a surrounding bar (123); the web bar (122) is arranged in the cage frame (121); the surrounding bar (123) is covered on the outside of the cage frame (121) and is connected to the web bar (122) at the same time.

3. The support and protection device for the construction elevator in the hoistway according to claim 1, characterized in that: The first protection cage (1) further comprises a lifting device (18), wherein the lifting device (18) is arranged on the connecting frame (17) and is used to control the lifting and lowering of the car in the track.

4. The support and protection device for the construction elevator in the hoistway according to claim 1, characterized in that: The aluminum template (11) is provided with through openings at the top and bottom, so that the aluminum template (11) is in the shape of a U-shaped frame, and its inner side wall is protruded inward with a trapezoidal protrusion (111), and the vertical frame structure (12) is connected to the protrusion (111).

5. The support and protection device for the construction elevator in the hoistway as claimed in claim 4, characterized in that: The aluminum template (11) is provided with a positioning groove (14) on the inner wall of the through-hole, a pre-tightening seat (16) is arranged in the positioning groove (14), and the pre-tightening seat (16) is connected to the first cage inner track (131).

6. The support and protection device for the construction elevator in the hoistway as claimed in claim 5, characterized in that: A reinforcing rib (15) is arranged in the positioning groove (14), and the reinforcing rib (15) reinforces the four right-angled sides of the through opening.

7. The support and protection device for the construction elevator in the hoistway as claimed in claim 2, characterized in that: The cage frame (121) is in the shape of a rectangular frame. A counterweight track (19) is also provided on the inner wall of the cage frame (121). The web rod (122) and the surrounding rod (123) are welded to the cage frame (121).

8. The support and protection device for the construction elevator in the hoistway according to claim 1, characterized in that: An elevator shaft structure (4) is disposed outside the first protection cage (1) and the second protection cage (2).

9. The support and protection device for the construction elevator in the hoistway as claimed in claim 8, characterized in that: The aluminum template (11) is in contact with the elevator shaft structure (4).

10. A method for hoisting a construction elevator in a hoistway, characterized in that: The hoistway construction elevator support and protection device according to any one of claims 1 to 9 is used, and includes the following steps: S1: Complete the construction of N-1 layers of structure, where N is an integer greater than or equal to 4; S2: Set up N layers of formwork; S3: After the N-layer is built, the first protection cage (1) is located at the N-1 layer, and the two second protection cages (2) are located at the N-2 and N-3 layers. The N-1 layer protection cage and the N-2 layer protection cage are separated by quick disassembly at the docking point, and then the N-1 layer protection cage is connected to the driving end of the driving device, and the driving device drives the N-1 layer protection cage to perform a lifting operation; S4: Continue to lift the protective cage until the N-1 layer protective cage is lifted to the N layer position and fixed; S5: dismantle the protective cage on the N-3 floor and transfer it to the N-1 floor; S6: Install and position the second protection cage (2) that has been transferred to the N-1 layer, and remove the template on the side of the shaft beam on the N-3 layer; S7: After the original N-3 layer protection cage rotates upward, the elevator shaft edge protection measures are installed in the spare section, and then the standard rail is installed so that the standard rail is connected with the installed standard rail downward and connected with the second cage inner rail (132) in the N-2 layer protection cage upward; S8: After the above steps, the entire construction elevator completes one-layer lifting, and the construction elevator can operate normally to the N-layer working surface; Step 9: Each time the construction layer is lifted upward, the lifting process of S1-S8 is repeated.

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