Large-span atrium hydraulic integral lifting device

Abstract

The application discloses a large-span atrium hydraulic integrated lifting device, which comprises a plurality of hoisting mechanisms and fixing bases, the hoisting mechanism comprises at least one synchronous motor and a steel cable, balance observation plates are arranged between the plurality of hoisting mechanisms, each steel cable can pass through the balance observation plate and is fixedly connected with the balance observation plate, the balance observation plate is vertically arranged with the axis of each steel cable, the balance observation plate can be cooperated with the steel cable to move up and down horizontally between the plurality of hoisting mechanisms, a ball is arranged at the center position of the balance observation plate and used for rolling after the balance observation plate is unidirectionally inclined, a shallow ball groove is arranged at the position of the balance observation plate corresponding to the ball and used for positioning the ball on the balance observation plate, and the shallow ball groove is coaxially arranged with the balance observation plate. The integrated lifting device is convenient for observing whether hoisting is inclined, convenient for manual correction in time and high in safety performance.

Description

Technical Field

[0001] This invention relates to the field of atrium lifting technology, specifically to a large-span atrium hydraulic integral lifting device. Background Technology

[0002] my country is in a period of rapid urbanization and industrialization, and investment is one of the important factors driving China's economic growth. Benefiting from the sustained and rapid growth of fixed asset investment and real estate investment, the accelerated urbanization process, and the advancement of new rural construction, China's civil construction industry has maintained rapid development for a long period. With the continuous growth of the urban population, the demand for commercial buildings is increasing. Currently, the construction of large-span atriums in commercial buildings relies on traditional steel pipe scaffolding, which is then lifted into place by steel cables. This traditional vertical lifting device generally uses multi-point single steel cable hoisting and lacks anti-tilting and anti-cable-breakage structures, resulting in weak safety performance. In the construction of such large-span atriums, during overall hydraulic lifting, the atrium structure has a large span and weak rigidity. If unilateral tilting occurs and hoisting continues, it can easily lead to dangerous situations or even damage to the atrium structure. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a large-span atrium hydraulic integral lifting device to solve the problems mentioned in the background art, such as the insufficient safety performance of traditional vertical integral lifting devices with multi-point single steel cable hoisting, the difficulty in detecting unidirectional tilting during hoisting, and the inability to intervene manually in a timely manner.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a large-span atrium hydraulic overall lifting device, comprising several sets of hoisting mechanisms and fixed seats. The hoisting mechanisms are fixed to the fixed seats by bolts. Each hoisting mechanism includes at least one synchronous motor and a steel cable. One end of the steel cable is connected to the synchronous motor, and the other end is connected to the atrium structure. The synchronous motor is connected to the steel cable and can drive the steel cable to hoist the atrium structure. A balance observation plate is provided between the several sets of hoisting mechanisms. Each steel cable can pass through the balance observation plate and be fixedly connected to it. The balance observation plate and the axis of each steel cable are perpendicular to each other. The balance observation plate can move horizontally up and down between the several hoisting mechanisms in cooperation with the steel cable. A ball bearing is provided at the center of the balance observation plate for rolling after the balance observation plate is tilted in one direction. A shallow ball groove is provided on the balance observation plate corresponding to the position of the ball bearing for positioning the ball bearing on the balance observation plate. The shallow ball groove is coaxial with the balance observation plate.

[0005] As a further improvement of the present invention, the ball is connected to the center of the shallow ball groove by a limiting rope, the length of which is less than the length from the center of the shallow ball groove to the side of the balance observation plate.

[0006] As a further improvement of the present invention, the balance observation plate is provided with a deep movable ring groove along the circumferential direction of the outer wall of the shallow ball groove, the length of the limiting rope is the same as the radial width of the deep movable ring groove, the ball can enter the deep movable ring groove after leaving the shallow ball groove, and the ball can roll along the length direction of the deep movable ring groove.

[0007] As a further improvement of the present invention, each of the hoisting mechanisms also includes a safety steel cable and a rotating wheel assembly. One end of the safety steel cable is detachably connected to the atrium structure, and the other end extends through the rotating wheel assembly toward the ground and is provided with a counterweight seat. The counterweight seat can be used to place a counterweight block of equal weight to the atrium structure. After placing counterweight blocks on several of the counterweight seats, the atrium structure can be prevented from falling downwards in one direction during the hoisting process. When the steel cable hoists the atrium structure, the counterweight seat on the safety steel cable can cooperate with it to descend and make the safety steel cable and the atrium structure taut.

[0008] As a further improvement of the present invention, the safety steel cable and the steel cable rope are arranged in parallel.

[0009] As a further improvement of the present invention, the synchronous motor is connected to a hydraulic drive, which is used to provide hoisting power to the synchronous motor.

[0010] As a further improvement of the present invention, a limiting hole is provided on the fixing seat for each steel cable position to pass through.

[0011] As a further improvement of the present invention, a protective baffle is provided on the outer side of the counterweight seat, which is used to prevent the counterweight from falling off.

[0012] Compared with existing technologies, this invention provides a large-span atrium hydraulic overall lifting device with the following advantages: The hoisting mechanism and the fixed base are fixed with bolts, ensuring a firm and reliable connection and effectively improving the overall load-bearing stability of the device. Synchronous motors drive the steel cables for hoisting, enabling multiple hoisting mechanisms to operate synchronously, ensuring uniform stress on the atrium structure, preventing structural deformation caused by localized stress concentration, and guaranteeing hoisting accuracy. The balance observation plate is vertically fixed to the steel cables and can move horizontally up and down with them, providing real-time and intuitive feedback on the stress balance of each steel cable, facilitating timely monitoring of the hoisting posture by operators. The central ball bearings cooperate with the coaxial shallow ball groove. When the balance observation plate tilts in one direction, the ball bearings quickly roll to issue an imbalance warning. The shallow ball groove accurately positions the ball bearings when the device is balanced, avoiding false warnings. Operators can make timely adjustments by observing the movement of the ball bearings, preventing stress concentration caused by unidirectional tilting and damage to the hoisted structure. Attached Figure Description

[0013] Figure 1 This is a front view of a hoisting mechanism according to the present invention; Figure 2 This is a diagram showing the usage state of the present invention; Figure 3 This is a diagram showing the internal structure of the counterweight base of the present invention; Figure 4 This is a top view of the triangular balance observation plate of the present invention; Figure 5 This is a top view of the quadrilateral balance observation plate of the present invention.

[0014] Reference numerals in the attached drawings: 1. Lifting mechanism; 2. Fixed base; 3. Synchronous motor; 4. Steel cable; 5. Atrium structure; 6. Balance observation plate; 7. Ball bearings; 8. Shallow ball groove; 9. Limiting rope; 10. Deep movable ring groove; 11. Safety steel cable; 12. Rotating wheel assembly; 13. Counterweight base; 14. Counterweight block; 15. Hydraulic actuator; 16. Limiting hole; 17. Protective baffle. Detailed Implementation

[0015] As shown in the figure, to achieve the above objectives, the present invention provides a hydraulic overall lifting device for a large-span atrium, including several sets of hoisting mechanisms 1 and fixed seats 2. The hoisting mechanisms 1 and fixed seats 2 are fixed by bolts. The hoisting mechanism 1 includes at least one synchronous motor 3 and a steel cable 4. One end of the steel cable 4 is connected to the synchronous motor 3 and the other end is connected to the atrium structure 5. The synchronous motor 3 is connected to the steel cable 4 and can drive the steel cable 4 to hoist the atrium structure 5. A balance observation plate 6 is provided between the several sets of hoisting mechanisms 1. Each steel cable 4 can pass through the balance observation plate 6 and be fixedly connected to it. The axis of the balance observation plate 6 and each steel cable 4 are perpendicular to each other. The balance observation plate 6 can move horizontally up and down between the several hoisting mechanisms 1 in cooperation with the steel cable 4. A ball bearing 7 is provided at the center of the balance observation plate 6 for rolling after the balance observation plate 6 is tilted in one direction. A shallow ball groove 8 is provided on the balance observation plate 6 corresponding to the position of the ball bearing 7 for positioning the ball bearing 7 on the balance observation plate 6. The shallow ball groove 8 is coaxial with the balance observation plate 6.

[0016] In implementation, the fixed base 2 can be pre-installed on the load-bearing structure of the building at the top of the large-span atrium. The hoisting mechanism 1 and the fixed base 2 are detachably fixed with high-strength bolts, facilitating the installation, maintenance, and disassembly of the device. Each hoisting mechanism 1 includes at least one synchronous motor 3 and one steel cable 4. The synchronous motor 3 is bolted to the mounting bracket of the hoisting mechanism 1. One end of the steel cable 4 is fixedly connected to the output end of the synchronous motor 3 through a coupling, ensuring that the synchronous motor 3 can stably drive the steel cable 4 to be wound and unwound when it is running. The other end of the steel cable 4 is fixedly connected to the preset hoisting point of the atrium structure 5 through a buckle structure, realizing the hoisting support of the atrium structure 5. Several sets of hoisting mechanisms 1 are evenly spaced along the length of the fixed base 2. A balance observation plate 6 is set between adjacent hoisting mechanisms 1. The balance observation plate 6 is made of high-strength steel plate, and its surface has suitable through holes corresponding to the positions of each steel cable 4. Each steel cable 4 passes through the corresponding through hole and is fixedly connected to the balance observation plate 6 by locking nuts or other structures that can lock the steel cable 4 to the balance observation plate 6. The balance observation plate 6 is perpendicular to the axis of each steel cable 4 to ensure that the balance observation plate 6 can remain horizontal when the steel cable 4 is under force. When the synchronous motor 3 drives the steel cable 4 to raise and lower to hoist the atrium structure 5, the balance observation plate 6 can move up and down horizontally between the hoisting mechanisms 1 as the steel cable 4 moves, making it convenient for the staff to observe the force balance of each steel cable 4. A shallow ball groove 8 is provided at the center of the balance observation plate 6. The shallow ball groove 8 is coaxial with the balance observation plate 6. A ball 7 is placed in the shallow ball groove 8. The diameter of the ball 7 is slightly smaller than the inner diameter of the shallow ball groove 8. When the balance observation plate 6 tilts in one direction due to uneven force on the steel cables 4, the ball 7 can roll in the shallow ball groove 8 in the tilt direction. The operator can quickly judge the balance status of the hoisting mechanism 1 by the rolling direction of the ball 7 and adjust the operating speed of the synchronous motor 3 in time to avoid tilting or deviation during the hoisting of the atrium structure 5. In this scheme, the shallow ball groove 8 is only used to position the ball 7 on the balance observation plate 6 when the balance observation plate 6 is not tilted. In the implementation of this scheme, each hoisting mechanism 1 can use one synchronous motor 3 with one steel cable 4, or multiple synchronous motors 3 can be used, with each synchronous motor 3 connected to a corresponding steel cable 4. Both implementation methods can achieve stable hoisting of the atrium structure 5, and both can achieve balance monitoring through the balance observation plate 6 and ball bearings 7. This scheme can be applied to balance observation plates 6 of different shapes. After several hoisting mechanisms 1 are connected to the balance observation plate 6, they can maintain balance.

[0017] As an improved specific implementation, the ball 7 and the center position of the shallow ball groove 8 are connected by a limiting rope 9, and the length of the limiting rope 9 is less than the length from the center of the shallow ball groove 8 to the side of the balance observation plate 6.

[0018] In implementation, a limiting rope 9 connects the center of the ball bearing 7 to the center of the shallow ball groove 8. The limiting rope 9 can be made of high-strength stainless steel wire rope, with both ends welded to the center of the ball bearing 7 and the bottom center of the shallow ball groove 8 respectively, ensuring a secure connection. Alternatively, other straps that do not affect the rolling of the ball bearing 7 and are not easily broken can be used to ensure that the ball bearing 7 does not detach from the balance observation plate 6 during rolling. The length of the limiting rope 9 is controlled to be less than the distance from the center of the shallow ball groove 8 to the side of the balance observation plate 6. Its specific length is designed to be adapted to the size of the balance observation plate 6 and the position of the shallow ball groove 8. When the balance observation plate 6 tilts slightly, the ball 7 can roll along the tilt direction within the shallow ball groove 8. At this time, the limiting rope 9 is in a slack state, which does not affect the rolling monitoring function of the ball 7. When the balance observation plate 6 tilts significantly, and the ball 7 is about to roll to the edge of the shallow ball groove 8, the limiting rope 9 will be tightened, thereby restricting the ball 7 from rolling further to the side of the balance observation plate 6, preventing the ball 7 from falling off the balance observation plate 6, and ensuring the stability and reliability of the balance monitoring structure. The diameter of the limiting rope 9 is adapted to the size of the ball 7 and the shallow ball groove 8. It is neither too thick, which would affect the rolling flexibility of the ball 7, nor too thin, which would result in insufficient strength, ensuring that it will not break during long-term use.

[0019] As an improved specific implementation, the balance observation plate 6 is provided with a deep movable ring groove 10 along the circumferential direction of the outer peripheral wall of the shallow ball groove 8. The length of the limiting rope 9 is the same as the radial width of the deep movable ring groove 10. After the ball 7 leaves the shallow ball groove 8, it can enter the deep movable ring groove 10 and roll along the length direction of the deep movable ring groove 10.

[0020] In this implementation, a deep, movable annular groove 10 is formed along the circumferential direction of the outer wall of the shallow ball groove 8 on the balance observation plate 6. The cross-section of the deep movable annular groove 10 is arc-shaped, its depth is greater than the depth of the shallow ball groove 8, and its width is adapted to the diameter of the ball 7, ensuring that the ball 7 can smoothly enter and roll within the groove. The deep movable annular groove 10 in this design is circular without any sharp edges, so it does not restrict the rolling of the ball 7 within the deep movable annular groove 10. The length of the limiting rope 9 is set to be the same as the radial width of the deep movable annular groove 10. When the balance observation plate 6 tilts significantly, the ball 7, after detaching from the shallow ball groove 8, can directly enter the deep movable annular groove 10. At this time, the limiting rope 9 is fully tightened, restricting the ball 7 from rolling along its circumferential length within the deep movable annular groove 10. This not only prevents the ball 7 from falling off but also allows for further judgment of the tilt direction and tilt amplitude of the balance observation plate 6 by observing the rolling trajectory of the ball 7 within the deep movable annular groove 10, thus improving the accuracy of balance monitoring. A smooth transition slope is provided between the deep movable annular groove 10 and the shallow ball groove 8, which facilitates the smooth switching of the ball 7 between the shallow ball groove 8 and the deep movable annular groove 10 and avoids jamming. The circumferential length of the deep movable annular groove 10 is matched with the diameter of the balance observation plate 6 to ensure that the ball 7 has sufficient rolling space in the annular groove, while not affecting the overall structural strength of the balance observation plate 6.

[0021] As an improved specific implementation, each hoisting mechanism 1 also includes a safety steel cable 11 and a rotating wheel assembly 12. One end of the safety steel cable 11 is detachably connected to the atrium structure 5, and the other end extends through the rotating wheel assembly 12 toward the ground and is provided with a counterweight seat 13. The counterweight seat 13 can be used to place a counterweight block 14 of the same weight as the atrium structure 5. After placing the counterweight block 14 on several counterweight seats 13, the atrium structure 5 can be prevented from falling downwards in one direction during hoisting. When the steel cable 4 hoists the atrium structure 5, the counterweight seat 13 on the safety steel cable 11 can cooperate with it to descend and make the safety steel cable 11 and the atrium structure 5 taut.

[0022] In implementation, the rotating wheel assembly 12 adopts a fixed pulley structure and is fixed to the bracket of the hoisting mechanism 1 by bolts. The wheel groove of the rotating wheel assembly 12 is adapted to the diameter of the safety cable 11 to ensure that the safety cable 11 can slide smoothly. One end of the safety cable 11 is connected to the preset safety lifting point of the atrium structure 5 through a detachable buckle structure. This buckle structure can be quickly disassembled, making it easy to remove the safety cable 11 after the atrium structure 5 is hoisted into place. The other end of the safety cable 11 passes through the wheel groove of the rotating wheel assembly 12 and extends towards the ground. Its end is fixedly connected to a counterweight seat 13. The counterweight seat 13 is made of welded steel structure, and its top is provided with a groove for placing the counterweight block 14. The counterweights 14 can be configured according to the actual weight of the atrium structure 5, ensuring that the total weight of the counterweights 14 placed on several counterweight seats 13 is equal to the weight of the atrium structure 5. When the steel cable 4 is used to hoist the atrium structure 5, the counterweight seats 13 will descend synchronously with the rise of the atrium structure 5. At this time, the safety cable 11 is in a taut state, sharing the weight of the atrium structure 5 with the steel cable 4, forming double protection. If the steel cable 4 breaks unexpectedly, the weight of the counterweight seats 13 will pull the atrium structure 5 through the safety cable 11, preventing the atrium structure 5 from falling downwards and ensuring the safety of the hoisting process. In the implementation of this scheme, the rotating pulley group 12 can be a single-wheel fixed pulley or a double-wheel fixed pulley group. Both implementation methods can achieve smooth guidance of the safety cable 11. The double-wheel fixed pulley group can further improve the stress stability of the safety cable 11. The counterweight 14 can be a concrete counterweight 14 or a cast iron counterweight 14. Both counterweight 14 can meet the weight requirements and are easy to handle and place.

[0023] As an improved specific implementation, the safety steel cable 11 and the steel cable 4 are arranged in parallel.

[0024] In this implementation, the safety cable 11 and the steel rope 4 are arranged parallel to each other, meaning their axes are aligned vertically. In each hoisting mechanism 1, the safety cable 11 and steel rope 4 are symmetrically arranged on both sides of the synchronous motor 3, and their connection points to the hoisting mechanism 1 support are at the same horizontal level. This ensures that the safety cable 11 and steel rope 4 remain synchronized under load, preventing tilting of the atrium structure 5 due to inconsistent load directions. A certain distance is maintained between the safety cable 11 and steel rope 4, the size of which is adapted to the dimensions of the hoisting mechanism 1. This avoids entanglement and interference during deployment and retraction, while ensuring that the weight of the atrium structure 5 is evenly distributed. By setting the safety cable 11 and steel rope 4 in a parallel state, the safety cable 11 can precisely correspond to the load direction of the steel rope 4. When the steel rope 4 experiences abnormal load, the safety cable 11 can respond quickly and promptly bear the load, further improving the safety and stability of the hoisting device.

[0025] As an improved specific implementation, the synchronous motor 3 is equipped with a hydraulic drive 15, which is used to provide hoisting power to the synchronous motor 3.

[0026] In this implementation, the hydraulic actuator 15 uses a plunger-type hydraulic pump, which is bolted to the support of the hoisting mechanism 1 and arranged adjacent to the synchronous motor 3 for easy connection and power transmission. The hydraulic actuator 15 is connected to the hydraulic interface of the synchronous motor 3 via hydraulic pipelines. The hydraulic pipelines are high-pressure rubber hoses, with both ends sealed to the hydraulic actuator 15 and the synchronous motor 3 through pipe fittings to prevent hydraulic oil leakage. The power output of the hydraulic actuator 15 can be controlled by adjusting the pressure and flow of the hydraulic oil, thereby adjusting the operating speed and output torque of the synchronous motor 3 to achieve smooth winding and unwinding of the steel cable 4, ensuring that the atrium structure 5 can rise or fall at a uniform speed during hoisting and avoiding swaying of the atrium structure 5 due to speed fluctuations. The hydraulic actuator 15 is equipped with a pressure regulating valve, which can flexibly adjust the hydraulic power output according to the weight of the atrium structure 5 and hoisting requirements to adapt to hoisting needs under different working conditions. The hydraulic actuator 15 in this solution uses an existing hydraulic actuator 15 and is equipped with an oil tank disclosed in the prior art to store hydraulic oil and ensure the normal operation of the hydraulic system.

[0027] As an improved embodiment, a limiting hole 16 is provided on the fixing base 2 for each steel cable 4 to pass through.

[0028] In this implementation, the fixing base 2 is made of welded steel profiles. After being fixed to the building's load-bearing structure, a limiting hole 16 is provided on the fixing base 2 corresponding to the position of each steel cable 4. The diameter of the limiting hole 16 is slightly larger than the diameter of the steel cable 4 to ensure that the steel cable 4 can pass through smoothly, while avoiding the steel cable 4 from swaying or shifting inside the hole due to an excessively large diameter. The inner wall of the limiting hole 16 is ground to remove burrs, preventing the steel cable 4 from being worn by the inner wall of the limiting hole 16 during the winding and unwinding process, thus extending the service life of the steel cable 4. The limiting hole 16 is set through the thickness direction of the fixing base 2. After the steel cable 4 passes through the limiting hole 16, one end is connected to the synchronous motor 3, and the other end is connected to the atrium structure 5. The limiting hole 16 can limit the swing range of the steel cable 4, ensuring that the steel cable 4 is always wound and unwinded in the preset vertical direction, avoiding uneven force on the hoisting mechanism 1 due to the deviation of the steel cable 4, and thus preventing the atrium structure 5 from tilting. The position of each limiting hole 16 is precisely aligned with the corresponding hoisting mechanism 1 and steel cable 4, ensuring that the steel cable 4 can remain vertical after passing through the limiting hole 16, thereby further improving the stability and hoisting accuracy of the hoisting device.

[0029] As an improved embodiment, a protective baffle 17 is provided on the outer side of the counterweight seat 13 to prevent the counterweight block 14 from falling off.

[0030] In this implementation, the protective baffle 17 is made of high-strength steel plate, and its height is higher than that of the counterweight 14. The protective baffle 17 is set around the outer peripheral wall of the counterweight base 13 to form a closed protective fence. The bottom of the protective baffle 17 is fixedly connected to the bottom of the counterweight base 13 by welding to ensure the connection is firm and prevent the protective baffle 17 from loosening or falling off under the pressure of the counterweight 14. A small gap is left between the inner side of the protective baffle 17 and the counterweight 14 to facilitate the placement and removal of the counterweight 14, while avoiding excessive gaps that would cause the counterweight 14 to shake inside the counterweight base 13. The top of the protective baffle 17 is provided with an inwardly bent flange to further improve the protective effect and prevent the counterweight 14 from falling off the top of the counterweight base 13 due to accidental collision or shaking.

[0031] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A hydraulic integral lifting device for a large-span atrium, comprising several sets of hoisting mechanisms and fixed seats, wherein the hoisting mechanisms and fixed seats are fixed by bolts, characterized in that, The hoisting mechanism includes at least one synchronous motor and a steel cable. One end of the steel cable is connected to the synchronous motor, and the other end is connected to the atrium structure. The synchronous motor is connected to the steel cable and can drive the steel cable to hoist the atrium structure. A balance observation plate is set between several sets of hoisting mechanisms. Each steel cable can pass through the balance observation plate and be fixedly connected to it. The balance observation plate is perpendicular to the axis of each steel cable. The balance observation plate can move horizontally up and down between several hoisting mechanisms in cooperation with the steel cable. A ball bearing is set at the center of the balance observation plate for rolling after the balance observation plate is tilted in one direction. A shallow ball groove is set on the balance observation plate corresponding to the position of the ball bearing for positioning the ball bearing on the balance observation plate. The shallow ball groove is coaxial with the balance observation plate.

2. The large-span atrium hydraulic integral lifting device according to claim 1, characterized in that, The ball bearings are connected to the center of the shallow ball groove by a limiting rope, the length of which is less than the length from the center of the shallow ball groove to the side of the balance observation plate.

3. The large-span atrium hydraulic integral lifting device according to claim 2, characterized in that, The balance observation plate is provided with a deep movable ring groove along the outer peripheral wall of the shallow ball groove. The length of the limiting rope is the same as the radial width of the deep movable ring groove. After the ball leaves the shallow ball groove, it can enter the deep movable ring groove and roll along the length direction of the deep movable ring groove.

4. The large-span atrium hydraulic integral lifting device according to claim 1, characterized in that, Each of the aforementioned hoisting mechanisms also includes a safety steel cable and a rotating wheel assembly. One end of the safety steel cable is detachably connected to the atrium structure, and the other end extends through the rotating wheel assembly toward the ground and is provided with a counterweight seat. The counterweight seat can be used to place a counterweight block of equal weight to the atrium structure. After placing counterweight blocks on several of the counterweight seats, the atrium structure can be prevented from falling downwards during hoisting. When the steel cable hoists the atrium structure, the counterweight seat on the safety steel cable can cooperate with it to descend, so that the safety steel cable and the atrium structure are in a taut state.

5. The large-span atrium hydraulic integral lifting device according to claim 4, characterized in that, The safety steel cable and the steel cable rope are arranged in parallel.

6. The large-span atrium hydraulic integral lifting device according to claim 1, characterized in that, The synchronous motor is equipped with a hydraulic drive, which provides lifting power to the synchronous motor.

7. The large-span atrium hydraulic integral lifting device according to claim 1, characterized in that, The fixing base has a limiting hole for each steel cable to pass through.

8. The large-span atrium hydraulic integral lifting device according to claim 4, characterized in that, A protective baffle is provided on the outside of the counterweight base to prevent the counterweight from falling off.

Images