Fixed lift for building and installation work

Abstract

The application relates to the technical field of building construction, in particular to a fixed elevator for building installation engineering, which comprises a traction assembly, the traction assembly comprises a bottom plate and a top plate, the bottom plate is fixed on an outer fixed surface, a guide rod is arranged between the bottom plate and the top plate, a traction machine is fixedly connected to the bottom end of the top plate, and a traction rope is arranged at the output end of the traction machine; the elevator assembly comprises a cage, the top end of the cage is connected with the traction rope, a sliding sleeve is arranged on the outer side of the cage and corresponds to the guide rod, the guide rod is sleeved in the sliding sleeve, and the sliding sleeve can reciprocatingly slide along the guide rod; the buffer assembly comprises a first buffer part and a second buffer part, the first buffer part is arranged on the bottom plate, the second buffer part is arranged on the two sides of the top plate, and the first buffer part is slidingly connected with the cage; the cage is driven by the traction rope to slide up and down along the guide rod; when the traction machine is in failure, the first buffer part and the second buffer part jointly act on the cage losing weight to play a buffering and damping effect, the damping effect is good, the cage is more stable when falling to the bottom, and the user can be prevented from being injured.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a fixed lifting ladder for building installation engineering. Background Technology

[0002] Fixed elevators are specialized freight elevators used for transporting goods between floors in buildings. They are primarily used for vertical transport of goods between various work levels. These elevators feature a robust structure, large load capacity, smooth lifting, and simple installation and maintenance, making them an economical and practical alternative to traditional elevators for transporting goods between low floors. However, fixed elevators can still fail if the traction machine locks. In the event of a traction machine failure, the car may suddenly drop due to weightlessness, potentially causing accidents to the occupants, thus compromising the safety of the device. Existing technology incorporates buffer springs and other cushioning components at the bottom of the car. However, when the car falls from a height, while these springs provide some cushioning, they cannot quickly stabilize the car. Continuous vibration can cause falls, collisions, and other accidents to the occupants, exacerbating feelings of nausea and fear. Furthermore, when the car falls from a high floor with a heavy load, the elasticity and rigidity of the buffer springs must be rigorously calculated; otherwise, they will also fail to provide cushioning and pose a safety threat to the occupants. Summary of the Invention

[0003] The present invention aims to solve the above problems, thereby providing a fixed lifting ladder for building installation projects that has good buffering and shock absorption effects and is safe and comfortable to use.

[0004] The invention solves the aforementioned problem by employing the following technical solution:

[0005] A fixed elevator for building installation includes a traction assembly, a lifting assembly, and a buffer assembly. The traction assembly includes a bottom plate and a top plate symmetrically arranged vertically. The bottom plate is located on the ground, and four guide rods are arranged between the bottom plate and the top plate. A traction machine is fixedly connected to the lower side of the top plate, and a vertically downward traction rope is provided at the output end of the traction machine. The lifting assembly includes a car, the top of which is connected to the bottom end of the traction rope. An entrance and exit are provided on the front side of the car for users to enter and exit. Four sliding sleeves are provided on the outer side of the car corresponding to the guide rods, and the guide rods are sleeved in the sliding sleeves, which can slide back and forth along the guide rods. The buffer assembly includes a first buffer part and a second buffer part. The first buffer part is located on the bottom plate, and the second buffer part is symmetrically arranged on both sides of the top plate. The first buffer part is slidably connected to the car.

[0006] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0007] The car slides up and down along the guide rod by the traction rope. When the traction machine fails and the car suddenly loses weight, the first and second buffer parts work together to buffer and dampen the weightless car. The damping effect is good, the car decelerates quickly, and the car falls more smoothly to the bottom, which can prevent injury to the users.

[0008] As a preferred embodiment, a further technical solution of the present invention is:

[0009] The first buffer section includes a receiving cylinder installed on the base plate. Several air vents are arranged circumferentially at the lower part of the receiving cylinder, and a pressure column is installed at the lower end of the car corresponding to the receiving cylinder. When the car falls to the lower part of the guide rod, the pressure column is inserted into the receiving cylinder, and the air in the receiving cylinder is quickly compressed. The air cannot be quickly discharged, thus providing a buffering effect for the car.

[0010] The car is symmetrically equipped with connecting ears at both ends, and the connecting ears are provided with connecting holes; the second buffer part includes two extension plates symmetrically arranged on both sides of the top plate, and the extension plates extend outward from the top plate; an automatic winding drum is provided on the extension plate, and the output end of the automatic winding drum passes through the extension plate and is provided with a downward-facing cable head, the lower end of the cable head is connected to a pull rope, and the lower end of the pull rope is provided with a sliding rod; the sliding rod is slidably connected in the connecting hole, and the bottom end of the sliding rod is provided with a connecting plate, and a buffer is provided between the connecting ear and the connecting plate.

[0011] The buffer is a spring sleeved on the sliding rod, with the upper end of the spring fixed to the connecting lug and the lower end of the spring fixed to the connecting plate; the structure is simple and the shock absorption effect is good.

[0012] The automatic winding drum is equipped with a coil spring; the coil spring provides an upward counter-pulling force to the pull rope, further enhancing the cushioning effect and slowing down the descent speed of the car.

[0013] The top of the car is equipped with a canopy via a connecting rod, and a connecting seat is fixed to the upper end of the canopy. The traction rope is connected to the car through the connecting seat to prevent objects from falling from a height and injuring the users inside the car. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a fixed lifting ladder for building installation engineering according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the traction assembly according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the lifting assembly according to an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the second buffer section in an embodiment of the present invention.

[0018] In the diagram: 1. Fixed elevator; 2. Traction assembly; 21. Base plate; 22. Top plate; 23. Guide rod; 24. Traction component; 241. Traction machine; 242. Traction rope; 25. Receiving component; 251. Connecting plate; 252. Receiving cylinder; 2521. Receiving cavity; 2522. Air outlet; 3. Lifting assembly; 31. Car; 311. Inlet and outlet; 312. Connecting rod; 313. Ceiling; 3131. Connecting seat; 32. Sliding sleeve; 321. Sliding hole; 33. Connecting component; 331. Connecting ear; 3311. Connecting hole; 34. Pressing component; 341. Mounting seat; 342. Pressing column; 4. Second buffer section; 41. Extension plate; 42. Automatic winding drum; 421. Cable outlet; 43. Pull rope; 44. Sliding rod; 45. Connecting disc; 46. Spring. Detailed Implementation

[0019] The present invention will be further described below with reference to embodiments, which are intended only to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, a fixed lifting ladder for building installation engineering is disclosed. The fixed lifting ladder 1 includes a traction component 2, a lifting component 3, and a buffer component. The traction component 2 includes a bottom plate 21 and a top plate 22 symmetrically arranged vertically. The bottom plate 21 is set on the external fixed surface of the foundation. The external fixed surface of the foundation is generally the ground, or a foundation pit is set on the ground, and concrete is poured into the foundation pit. During the pouring, embedded parts are set. After the concrete has set, the bottom plate 21 is fixed on the embedded parts. The bottom plate is generally at the same level as the ground or slightly lower than the ground to facilitate the placement of goods into the lifting component. Four guide rods 23 are evenly arranged between the bottom plate 21 and the top plate 22. A traction component 24 is set under the top plate 22. The traction component 24 includes a traction machine 241 fixedly connected to the middle position of the lower end face of the top plate 22. The output end of the traction machine 241 is provided with a vertically downward traction rope 242. In use, the traction machine 241 can drive the traction rope 242 to move up and down, thereby achieving the effect of lifting up and down. The lifting assembly 3 includes a car 31, the top of which is connected to the bottom end of the traction rope 242. An entrance / exit 311 for users to enter and exit the car 31 is provided on the front side of the car 31. Four sliding sleeves 32 are provided on the outer side of the car 31 corresponding to the guide rod 23. Each sliding sleeve 32 has a sliding hole 321, and the sliding sleeve 32 is slidably connected to the outer side of the guide rod 23 through the sliding hole 321. The guide rod 23 is fitted into the sliding sleeve 32, and the sliding sleeve 32 can slide back and forth along the guide rod 23. The buffer assembly includes a first buffer section and a second buffer section 4. The first buffer section is located on the base plate 21, and the second buffer sections 4 are symmetrically arranged on both sides of the top plate 22. The first buffer section is slidably connected to the car 31.

[0021] Furthermore, the first buffer section includes a receiving member 25 and a pressing member 34. The receiving member 25 includes a connecting plate 251 located at the middle of the upper end face of the base plate 21. A receiving cylinder 252 is fixedly connected to the connecting plate 251. A receiving cavity 2521 is provided inside the receiving cylinder 252. Multiple sets of vent holes 2522 are evenly arranged along the circumferential direction at the lower part of the receiving cylinder 252. The diameter of the vent holes 2522 is less than 15mm. The vent holes 2522 extend from the receiving cavity 2521 to the outside of the receiving cylinder 252. The pressing component 34 includes a mounting base 341 located in the middle of the lower end face of the car 31. A pressing column 342 is fixedly connected to the mounting base 341. The diameter of the pressing column 342 corresponds to the receiving cavity 2521. When the car 31 falls to the lower part of the guide rod 23, the pressing column 342 is inserted into the receiving cylinder 252. The air in the receiving cylinder 252 is rapidly compressed and cannot be quickly discharged, thus providing a cushioning effect for the car 31.

[0022] Furthermore, connecting pieces 33 are symmetrically arranged at both ends of the car 31. Each connecting piece 33 has a connecting ear 331, which is fixed to the outside of the car 31. The connecting ear 331 has a connecting hole 3311. The second buffer part 4 includes two extension plates 41 symmetrically arranged on both sides of the top plate 22. The extension plates 41 extend outward from the top plate 22. An automatic winding drum 42 is provided on the extension plate 41, and a coil spring is provided inside the automatic winding drum 42. The coil spring provides an upward reverse pull force to the pull rope 43, further enhancing the buffering effect. The output end of the automatic winding drum 42 passes through the extension plate 41 and has a downward cable outlet 421. The lower end of the cable outlet 421 is connected to a downward pull rope 43, and the lower end of the pull rope 43 is provided with a sliding rod 44. The sliding rod 44 is slidably connected in the connecting hole 3311, and the bottom end of the sliding rod 44 is provided with a connecting plate 45. The horizontal height of the connecting plate 45 is lower than the horizontal height of the bottom of the car 31. A buffer is provided between the connecting ear 331 and the connecting disc 45. The automatic winding drum 42 with a coil spring can be directly adopted as a spring-type cable reel 46.

[0023] Specifically, the buffer can be a spring 46 sleeved on the sliding rod 44, with the upper end of the spring 46 fixed to the connecting lug 331 and the lower end of the spring 46 fixed to the connecting plate 45. Alternatively, the buffer can be four springs 46 evenly arranged around the sliding rod 44, with the upper end of the springs 46 fixed to the connecting lug 331 and the lower end of the springs 46 fixed to the connecting plate 45.

[0024] Furthermore, a canopy 313 is provided at the top of the car 31 via a connecting rod 312, and a connecting seat 3131 is fixedly connected to the upper end of the canopy 313. The traction rope 242 is connected to the car 31 via the connecting seat 3131. The canopy 313 can prevent objects from falling from a height and injuring the users inside the car 31.

[0025] In operation, the traction machine 241 drives the traction rope 242 to move up and down, and the traction rope 242 drives the car 31 to slide up and down along the guide rod 23. When the traction machine 241 malfunctions and the car 31 suddenly loses weight, the car 31 slides downwards on the outside of the guide rod 23 via the sliding sleeves 32 on both sides. During the sliding process, the pull rope 43 of the second buffer part 4 is stretched. Since the automatic winding drum 42 is equipped with a coil spring, the coil spring provides an upward reverse pulling force to the pull rope 43, which decelerates the car 31. At the same time, during the descent of the car 31, the connecting plate 45 at the lower end of the sliding rod 44 first comes into contact with the outside air. Due to inertia, the car 31 continues to fall, and the spring 46 is quickly compressed. Utilizing the elastic deformation of the spring 46 itself, it provides a reverse thrust to the car 31, reducing its falling gravity and playing a buffering and shock-absorbing role to prevent injury to the user. Furthermore, the present invention is also provided with a mutually compatible receiving cylinder 252 and a pressing column 342. When the car 31 falls to the lower part of the guide rod 23, the pressing column 342 is inserted into the receiving cavity 2521. The air in the receiving cavity 2521 is rapidly compressed. The compressed air cannot be quickly discharged through the small air outlet 2522 at the lower part of the receiving cavity 2521. Thus, the air inside the receiving cavity 2521 plays a role in receiving and buffering the car 31, further reducing the falling speed of the car 31.

[0026] This invention, through the cooperation of the first and second buffer parts, enables the car to land quickly and stably when it is falling rapidly; its buffering and shock absorption effect is good, further improving the safety of the car during use, effectively protecting the users, and effectively enhancing the practicality of the device.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A fixed lifting ladder for building installation engineering, comprising a traction assembly, a lifting assembly, and a buffer assembly, characterized in that: The traction assembly includes a bottom plate and a top plate arranged symmetrically. The bottom plate is set on the ground. Four guide rods are set between the bottom plate and the top plate. A traction machine is fixed to the underside of the top plate. A vertically downward traction rope is set at the output end of the traction machine. The lifting assembly includes a car, the top of which is connected to the bottom of the traction rope. The front of the car has an entrance and exit for users to enter and exit the car. Four sliding sleeves are provided on the outside of the car corresponding to the guide rod. The guide rod is sleeved in the sliding sleeves, and the sliding sleeves can slide back and forth along the guide rod. The buffer assembly includes a first buffer section and a second buffer section. The first buffer section is disposed on the bottom plate, and the second buffer section is symmetrically disposed on both sides of the top plate. The first buffer section is slidably connected to the car. The first buffer section includes a receiving cylinder installed on the bottom plate. Several air vents are arranged circumferentially at the lower part of the receiving cylinder, and a pressure column is installed at the lower end of the car corresponding to the receiving cylinder. The car is symmetrically equipped with connecting ears at both ends, and the connecting ears are provided with connecting holes; the second buffer part includes two extension plates symmetrically arranged on both sides of the top plate, and the extension plates extend outward from the top plate; an automatic winding drum is provided on the extension plate, and the output end of the automatic winding drum passes through the extension plate and is provided with a downward-facing cable head, the lower end of the cable head is connected to a pull rope, and the lower end of the pull rope is provided with a sliding rod; the sliding rod is slidably connected in the connecting hole, and the bottom end of the sliding rod is provided with a connecting plate, and a buffer is provided between the connecting ear and the connecting plate; The buffer is a spring sleeved on the sliding rod, with the upper end of the spring fixed to the connecting lug and the lower end of the spring fixed to the connecting plate; The automatic winding drum is equipped with a coil spring.

2. The fixed lifting ladder for building installation engineering according to claim 1, characterized in that: The top of the car is equipped with a canopy via a connecting rod, and a connecting seat is fixed to the upper end of the canopy. The traction rope is connected to the car through the connecting seat.

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