Construction device for additionally installing elevator on old building

Abstract

The utility model relates to the technical field of elevator construction, in particular to a construction device for additionally installing an elevator on an old building, which comprises an elevator shaft body, the elevator shaft body comprises a support frame, a shaft wall plate, a guide rail and an elevator door frame, an operation platform is arranged on the inner side of the elevator shaft body, and the lower side of the operation platform is fixedly connected with a fixing frame. The fixing frame comprises a fixing transverse rod and a fixing longitudinal rod, a supporting mechanism is arranged in the fixing transverse rod, and the supporting mechanism comprises an equipment cavity, a positioning groove, a supporting block, a supporting plate, an anti-skid cushion block, a positioning block, a threaded rod, a first bevel gear, a second bevel gear, a transmission shaft and a hand wheel. A hand wheel, a first bevel gear and a second bevel gear are matched to drive a threaded rod to rotate, then a supporting block, a supporting plate and an anti-skid cushion block are rapidly pushed out, the anti-skid cushion block tightly abuts against the inner wall of an elevator shaft body, the stability of the operation platform is improved, the fixing speed of the operation platform is effectively increased, and the operation convenience is improved; quick construction is facilitated, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator construction technology, specifically to a construction device for adding elevators to old buildings. Background Technology

[0002] In recent years, with the acceleration of urbanization and the deepening of population aging, for residents living in old communities without elevator facilities, adding elevators has become one of the effective ways to improve their quality of life. During the elevator installation process, it is necessary to lay out the wiring in the elevator shaft and other construction work.

[0003] Among them, announcement number CN221896175U discloses an elevator shaft lifting construction device, including a lifting mechanism and an operating platform. The operating platform is connected to the lifting mechanism. An annular baffle is vertically arranged around the perimeter of the operating platform. The annular baffle has several threaded holes arranged around the operating platform. Each threaded hole is equipped with a limiting screw, which is used to abut against the inner wall of the shaft. This application, by adding an annular baffle to the operating platform, allows the moving platform to abut against the inner wall of the shaft through the limiting screw on the annular baffle after reaching the corresponding construction height. This provides support for the operating platform, preventing it from shaking during construction, improving the safety of the workers, and also reducing the load on the lifting mechanism.

[0004] During use, the device supports the platform by abutting multiple sets of limiting screws against the inner wall of the shaft. However, in actual use, multiple sets of limiting screws need to be pushed outwards in sequence, which is a complicated operation and slow fixing speed, thus affecting construction inside the shaft.

[0005] Therefore, it is necessary to invent a construction device for adding elevators to old buildings to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a construction device for adding elevators to old buildings, so as to solve the problem that the fixing speed of the operating platform is too slow, which affects the construction in the shaft.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a construction device for adding elevators to old buildings, comprising an elevator shaft, the elevator shaft comprising a support frame, shaft wall panels, guide rails, and an elevator door frame, an operating platform being provided on the inner side of the elevator shaft, a fixing frame being fixedly connected to the lower side of the operating platform, the fixing frame comprising a fixing crossbar and a fixing longitudinal bar, a support mechanism being provided inside the fixing crossbar, the support mechanism comprising an equipment cavity, a positioning groove, a support block, a support plate, an anti-slip pad, a positioning block, a threaded rod, a first bevel gear, a second bevel gear, a transmission shaft, and a handwheel.

[0008] By adopting the above technical solution, the operating platform moves up and down inside the elevator shaft to carry out construction inside the elevator shaft. During the construction process, the handwheel, the first bevel gear and the second bevel gear work together to drive the threaded rod to rotate, thereby quickly pushing the support block outward, so that the support block is tightly pressed against the inner wall of the elevator shaft, improving the stability of the operating platform, effectively increasing the speed of fixing the operating platform, improving the convenience of operation, facilitating rapid construction and improving construction efficiency.

[0009] Optionally, the fixed crossbar is provided in two sets, front and rear, and multiple sets of fixed longitudinal bars are fixedly connected between the two sets of fixed crossbars.

[0010] By adopting the above technical solution, two sets of fixed horizontal bars and multiple sets of fixed vertical bars work together to support the operating platform.

[0011] Optionally, a connecting block is fixedly connected to the side of the fixed crossbar, and a lifting cable is fixedly connected to the upper surface of the connecting block.

[0012] By adopting the above technical solution, the lifting cable is used in conjunction with the winch to lift the operating platform.

[0013] Optionally, the equipment cavity is located in the middle of the inner side of the fixed crossbar, and positioning grooves are provided on both the left and right sides of the equipment cavity inside the fixed crossbar. The positioning block is fixedly connected to the end of the positioning groove near the equipment cavity.

[0014] Optionally, the two sets of positioning grooves are slidably connected to a support block, the support plate is fixedly connected to one end of the support block, and the anti-slip pad is fixedly connected to the surface of the support plate.

[0015] By adopting the above technical solution, the support block slides inside the positioning groove, pushing the support plate and anti-slip pad outward to support and fix the operating platform.

[0016] Optionally, both sets of positioning grooves are provided with threaded rods inside. One end of the threaded rod passes through the positioning block and is fixedly connected to the first bevel gear, while the other end of the threaded rod is threadedly connected to the inside of the support block.

[0017] By adopting the above technical solution, the threaded rod rotates and drives the support block to slide inside the positioning groove.

[0018] Optionally, the drive shaft is rotatably connected to the top wall of the equipment cavity, the lower end of the drive shaft is fixedly connected to the second bevel gear, the second bevel gear meshes with the first bevel gear, and the upper end of the drive shaft is fixedly connected to the handwheel.

[0019] By adopting the above technical solution, the handwheel drives the second bevel gear to rotate through the transmission shaft, the second bevel gear drives the first bevel gears on both sides to rotate, and the first bevel gear drives the threaded rod to rotate.

[0020] Optionally, the shaft wall panel is fixed to the inside of the support frame, and guide rails are fixedly connected to the inner surfaces of both the left and right sets of shaft wall panels. The elevator door frame is fixedly connected to the surface of the front shaft wall panel.

[0021] By adopting the above technical solution, the support frame is fixed to the outside of the building to support the elevator shaft as a whole, and the guide rail is used to improve the stability of the elevator car operation.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] This invention uses a handwheel, a first bevel gear, and a second bevel gear to drive a threaded rod to rotate, thereby quickly pushing the support block outward and making it press tightly against the inner wall of the elevator shaft. This improves the stability of the operating platform, effectively increases the speed of fixing the operating platform, enhances operational convenience, facilitates rapid construction, and improves construction efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the elevator shaft structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the operating platform structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the fixing frame structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the support mechanism structure of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Elevator shaft; 11. Support frame; 12. Shaft wall panel; 13. Guide rail; 14. Elevator door frame; 2. Operating platform; 21. Fixing frame; 22. Fixing crossbar; 221. Equipment cavity; 222. Positioning groove; 223. Support block; 224. Support plate; 225. Anti-slip pad; 226. Positioning block; 227. Threaded rod; 228. First bevel gear; 229. Second bevel gear; 2210. Drive shaft; 2211. Handwheel; 23. Fixing longitudinal bar; 24. Connecting block; 25. Lifting cable. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides, for example Figures 1 to 4 The diagram shows a construction device for adding an elevator to an old building, including an elevator shaft 1. The elevator shaft 1 includes a support frame 11, shaft wall panels 12, guide rails 13, and an elevator door frame 14. The shaft wall panels 12 are fixed to the inner side of the support frame 11. Guide rails 13 are fixedly connected to the inner surfaces of the left and right sets of shaft wall panels 12. The elevator door frame 14 is fixedly connected to the surface of the front shaft wall panel 12. An operating platform 2 is provided inside the elevator shaft 1. A fixing frame 21 is fixedly connected to the lower side of the operating platform 2. The fixing frame 21 includes a fixing crossbar 22 and a fixing longitudinal bar 23. The fixing crossbar 22 is provided in two sets, front and rear. Multiple sets of fixing longitudinal bars 23 are fixedly connected between the two sets of fixing crossbars 22. A connecting block 24 is fixedly connected to the side of the fixing crossbar 22. A lifting cable 25 is fixedly connected to the upper surface of the connecting block 24.

[0033] The elevator shaft 1 is equipped with a winch at its upper end. The upper end of the lifting cable 25 is fixed to the winch in the winch. The winch is used to wind up and unwind the lifting cable, thereby driving the fixed frame 21 and the operating platform 2 to rise and fall, and to adjust the construction position. During use, the winch drives the winch to rotate, wind up and unwind the lifting cable 25, and thus adjust the position of the operating platform 2, which facilitates construction at different positions inside the elevator shaft 1.

[0034] In addition, before the elevator shaft 1 is installed, a comprehensive inspection and evaluation of the target building is conducted to determine the optimal installation location. Secondly, key components such as the shaft wall panel 12, support frame 11, and guide rail 13 are produced and pre-assembled in the factory according to the design drawings. After that, they are transported to the construction site, where a crane is used to lift the prefabricated large modules one by one and fix them to the reinforced wall or special bracket by welding or bolting. Then, the elevator equipment, electrical control system and other auxiliary facilities are installed. Finally, the elevator is tested and run to ensure that all functions are working properly. In addition, in order to adapt to various building structures, the support frame 11 is designed to be multi-section adjustable. The length can be changed by adjusting the nuts to match different installation height requirements. Each support point is equipped with an independent anchor bolt to ensure a stable connection with the ground.

[0035] Meanwhile, the shaft wall panel 12 is made of 2mm thick high-strength steel with an anti-corrosion coating, providing excellent corrosion resistance and a long service life. The support frame 11 is made of 6061-T6 aluminum alloy, with a density as low as 2.7g / cm³, making it lightweight, strong up to 300MPa, and easy to cold and hot process. The elevator door frame 14 is made of 304 stainless steel, possessing excellent corrosion resistance and heat resistance. The guide rail 13 is made of 45# high-quality carbon steel with a hot-dip galvanized surface and a zinc coating thickness ≥25μm, significantly increasing wear resistance. This enables rapid generation of design schemes based on different geological conditions and building types, reducing the time required for customized design. While ensuring the safety and economy of the design scheme, the cost-effectiveness of elevator installation in old residential buildings has been reduced, making it a more feasible renovation solution. This has also improved the overall efficiency of elevator installation projects. Through modular design and the application of intelligent construction equipment, the speed from product design to production has been accelerated, and on-site installation can be responded to quickly, greatly shortening the entire construction cycle, reducing interference with residents' lives, and improving project quality and long-term reliability. In particular, by optimizing material selection (such as high-strength lightweight aluminum alloy support frame 11), anti-corrosion and rust prevention treatment, and strengthening the design of key parts, the durability of the elevator system has been significantly enhanced, maintenance costs have been reduced, and service life has been extended.

[0036] See Figure 4 and Figure 5 The fixed crossbar 22 has a support mechanism inside, which includes a device cavity 221, a positioning groove 222, a support block 223, a support plate 224, an anti-slip pad 225, a positioning block 226, a threaded rod 227, a first bevel gear 228, a second bevel gear 229, a drive shaft 2210, and a handwheel 2211. The device cavity 221 is located in the middle of the inner side of the fixed crossbar 22. Positioning grooves 222 are provided on both the left and right sides of the device cavity 221 inside the fixed crossbar 22. The positioning block 226 is fixedly connected to the end of the positioning groove 222 near the device cavity 221. The support block 22 is slidably connected inside the two sets of positioning grooves 222. 3. The support plate 224 is fixedly connected to the outer end of the support block 223. The anti-slip pad 225 is fixedly connected to the surface of the support plate 224. The two sets of positioning grooves 222 are each provided with a threaded rod 227. The inner end of the threaded rod 227 passes through the positioning block 226 and is fixedly connected to the first bevel gear 228. The outer end of the threaded rod 227 is threadedly connected to the inside of the support block 223. The transmission shaft 2210 is rotatably connected to the top wall of the equipment cavity 221. The lower end of the transmission shaft 2210 is fixedly connected to the second bevel gear 229. The second bevel gear 229 is meshed with the first bevel gear 228. The upper end of the transmission shaft 2210 is fixedly connected to the handwheel 2211.

[0037] Specifically, during the construction inside the elevator shaft 1, the winch and hoist work together to wind up the lifting cable 25. At this time, the lifting cable 25 continuously drives the operating platform 2 and the fixed frame 21 upwards. After moving them to the designated position, the winch stops and automatically locks the hoist. To improve stability during construction, workers rotate two sets of handwheels 2211 to drive the transmission shaft 2210. The transmission shaft 2210 drives the second bevel gear 229 to rotate, and the second bevel gear 229 drives the first bevel gears on both sides... The gear 228 rotates, and the first bevel gear 228 drives the threaded rod 227 to rotate. During the rotation, the threaded rod 227 pushes the support block 223, support plate 224 and anti-slip pad 225 outward, so that the anti-slip pad 225 is tightly pressed against the surface of the shaft wall panel 12, thereby supporting the operating platform 2 and the fixing frame 21, improving the stability of the operating platform 2 and the fixing frame 21 during the construction process, while effectively improving the convenience of operation, improving the fixing efficiency of the operating platform 2, and facilitating rapid construction of the interior of the elevator shaft 1.

[0038] The working principle of this utility model is as follows: The handwheel 2211, the first bevel gear 229, and the second bevel gear 228 work together to drive the threaded rod 227 to rotate, thereby quickly pushing the support block 223, the support plate 224, and the anti-slip pad 225 outward, so that the anti-slip pad 225 is tightly pressed against the inner wall of the elevator shaft 1, improving the stability of the operating platform 2, effectively increasing the speed of fixing the operating platform 2, improving the convenience of operation, facilitating rapid construction, and improving construction efficiency.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A construction device for installing elevators in old buildings, comprising an elevator shaft (1), characterized in that: The elevator shaft (1) includes a support frame (11), shaft wall panel (12), guide rail (13), and elevator door frame (14). An operating platform (2) is provided inside the elevator shaft (1). A fixed frame (21) is fixedly connected to the lower side of the operating platform (2). The fixed frame (21) includes a fixed crossbar (22) and a fixed longitudinal bar (23). A support mechanism is provided inside the fixed crossbar (22). The support mechanism includes an equipment cavity (221), a positioning groove (222), a support block (223), a support plate (224), an anti-slip pad (225), a positioning block (226), a threaded rod (227), a first bevel gear (228), a second bevel gear (229), a transmission shaft (2210), and a handwheel (2211).

2. The construction device for adding elevators to old buildings according to claim 1, characterized in that: The fixed crossbar (22) is provided in two sets, front and rear, and multiple sets of fixed longitudinal bars (23) are fixedly connected between the two sets of fixed crossbars (22).

3. The construction device for adding elevators to old buildings according to claim 2, characterized in that: A connecting block (24) is fixedly connected to the side of the fixed crossbar (22), and a lifting cable (25) is fixedly connected to the upper surface of the connecting block (24).

4. The construction device for adding elevators to old buildings according to claim 1, characterized in that: The equipment cavity (221) is located in the middle of the inner side of the fixed crossbar (22). The fixed crossbar (22) has positioning grooves (222) on both the left and right sides of the equipment cavity (221). The positioning block (226) is fixedly connected to the end of the positioning groove (222) near the equipment cavity (221).

5. The construction device for adding elevators to old buildings according to claim 4, characterized in that: The two sets of positioning grooves (222) are internally slidably connected with support blocks (223), the support plate (224) is fixedly connected to one end of the support block (223), and the anti-slip pad (225) is fixedly connected to the surface of the support plate (224).

6. The construction device for adding elevators to old buildings according to claim 5, characterized in that: Both sets of positioning grooves (222) are provided with threaded rods (227). One end of the threaded rod (227) passes through the positioning block (226) and is fixedly connected to the first bevel gear (228). The other end of the threaded rod (227) is threadedly connected to the inside of the support block (223).

7. The construction device for adding elevators to old buildings according to claim 6, characterized in that: The drive shaft (2210) is rotatably connected to the top wall of the equipment cavity (221), the lower end of the drive shaft (2210) is fixedly connected to the second bevel gear (229), the second bevel gear (229) is meshed with the first bevel gear (228), and the upper end of the drive shaft (2210) is fixedly connected to the handwheel (2211).

8. The construction device for adding elevators to old buildings according to claim 1, characterized in that: The shaft wall panel (12) is fixed to the inner side of the support frame (11), and the inner surfaces of the left and right shaft wall panels (12) are fixedly connected with guide rails (13). The elevator door frame (14) is fixedly connected to the surface of the front shaft wall panel (12).

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