Elevator with box bottom energy absorption buffering function

Abstract

The utility model discloses an elevator with a box bottom energy absorption buffering function, which belongs to the technical field of elevator cars and comprises a shaft, sliding rails on two sides of an inner cavity of the shaft are slidably connected with a box body, a main annular air bag is mounted at the bottom of the box body, and an uninflated auxiliary annular air bag is arranged in the main annular air bag. A damping rod penetrating through the hollow column is fixed to a first spring in an inner cavity of the hollow column, a sealing structure is arranged in the inner cavity of the hollow column, a locking device is arranged on the outer ring of the hollow column, a triggering structure is arranged on the outer ring of the damping rod, an inflator is installed in the box body, and a damping column is installed at the bottom of the box body; sliding blocks slide on sliding rods fixed by the damping columns, damping springs are fixed between the sliding blocks, and inclined rods at the tops of the sliding blocks are connected with the bottom of the box body. According to the utility model, a standby buffer device can be quickly switched when a fault occurs, so that the potential safety hazard caused by the failure of the air bag is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of elevator car technology, and in particular to an elevator with energy-absorbing buffer at the bottom of the car. Background Technology

[0002] With the continuous acceleration of modern urbanization, elevators, as an important component of high-rise buildings and modern facilities, have been widely used in residential buildings, shopping malls, office buildings and other places. The safety and comfort of elevators directly affect the user experience and life safety. Therefore, how to improve the safety of elevators in emergencies, especially when elevators malfunction or stop in an emergency, to mitigate the impact and protect passengers, has become an urgent problem to be solved.

[0003] Traditional elevator cushioning systems typically use a single airbag structure. In the event of an emergency, if the airbag ruptures or fails, the cushioning function will be lost, thereby increasing the impact force and causing harm to the elevator and passengers. Utility Model Content

[0004] The purpose of this invention is to provide an elevator with a bottom energy-absorbing buffer, which enables the elevator to quickly switch to a backup buffer device when a malfunction occurs, effectively avoiding safety hazards caused by airbag failure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an elevator with energy-absorbing buffer at the bottom of the car, including a shaft, a car body slidably connected to slide rails on both sides of the shaft cavity, a main ring-shaped airbag installed at the bottom of the car body, an uninflated secondary ring-shaped airbag inside the main ring-shaped airbag, both ring-shaped airbags being connected to a hollow column installed at the bottom of the car body through pipes, a shock-absorbing rod penetrating the hollow column being fixed to a first spring in the hollow column cavity, a sealing structure that can slide up and down and seal the through holes of the two airbags at different positions in the hollow column cavity, a locking device for locking the sealing structure on the outer ring of the hollow column, a triggering structure for use in conjunction with the sealing structure and the locking device on the outer ring of the shock-absorbing rod, and an inflator connected to the hollow column installed in the car body;

[0006] At least two shock-absorbing columns are installed at the bottom of the box. At least two sliders slide on the slide rod fixed between the shock-absorbing columns. A shock-absorbing spring is fixed between the two sliders and sleeved on the outer ring of the slide rod. The inclined rod rotatably connected to the top of the slider is rotatably connected to the bottom of the box.

[0007] As a further description of the above technical solution: the first spring is fixedly connected to the top wall of the hollow column cavity, the main annular airbag is provided with a main air inlet pipe, and the secondary annular airbag is provided with a secondary air inlet pipe that penetrates the main annular airbag.

[0008] As a further description of the above technical solution: the outer ring of the hollow column is provided with a main air supply pipe that is connected to the main air intake pipe through a pipe, and the outer ring of the hollow column is provided with a secondary air supply pipe that is connected to the secondary air intake pipe through a pipe.

[0009] As a further description of the above technical solution: the sealing structure includes a sliding plate disposed in the inner cavity of the hollow column, the surface of the sliding plate is provided with an insertion hole, the locking device includes an insertion post passing through the insertion hole, and the triggering structure includes a moving block.

[0010] As a further description of the above technical solution: the upper and lower sides of the socket and the upper and lower sides of the moving block are provided with inclined surfaces of the same angle, and the surface of the sliding plate is provided with a circular hole.

[0011] As a further description of the above technical solution: the slide plate is slidably connected to a slide rail provided on the inner wall of the hollow column, and the bottom of the slide plate is provided with an inclined surface.

[0012] As a further description of the above technical solution: a locking shell is fixed to the outside of the hollow column, a movable column that is fixedly connected to the insertion column slides inside the locking shell, and a second spring sleeved on the outer ring of the movable column is fixedly connected to the locking shell and the insertion column.

[0013] As a further description of the above technical solution: the movable block is fixed with a movable rod that penetrates the rectangular plate, the rectangular plate is fixedly connected to the shock-absorbing rod, and a third spring sleeved on the outer ring of the movable rod is fixedly connected to the movable block and the rectangular plate.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. This invention proposes a dual design of a main ring airbag and a secondary ring airbag, which allows the secondary ring airbag to immediately take over the function of the main ring airbag and continuously provide a cushioning effect when the elevator malfunctions, even if the main ring airbag is damaged. This improves the safety and reliability of the elevator. When the main ring airbag fails, the secondary ring airbag can be activated quickly to ensure that the elevator does not lose its safety cushioning function.

[0016] 2. When the main ring airbag is damaged and the shock absorber rod is inserted into the hollow column, the triggering structure will drive the sealing structure to close the through hole of the main ring airbag and open the through hole of the secondary ring airbag. This allows for a rapid switch to the backup airbag when the main airbag is damaged. At the same time, the shock absorber rod will also provide energy absorption and buffering during the switching process through the first spring.

[0017] 3. When the elevator falls, the shock-absorbing columns and springs, together with the slider and the diagonal rod, provide additional energy absorption and buffering functions. The shock-absorbing columns and springs can effectively absorb the elevator impact, reduce the vibration when the elevator comes into contact with the shaft, and provide additional safety protection. Attached Figure Description

[0018] Figure 1 A front view of the present invention is shown;

[0019] Figure 2 A cross-sectional view of the present invention is shown;

[0020] Figure 3 This utility model is shown Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 A cross-sectional view of the hollow column of this utility model is shown;

[0022] Figure 5 This utility model is shown Figure 4 Enlarged view of point B in the middle;

[0023] Figure 6 A perspective view of the skateboard of this utility model is shown;

[0024] Figure 7 A perspective view of the shock-absorbing column and slide bar of this utility model is shown.

[0025] Legend:

[0026] 10. Shaft; 11. Slide rail; 12. Housing; 13. Air inflator; 14. Shock absorber column; 15. Slide rod; 16. Slider; 17. Shock absorber spring; 18. Diagonal rod;

[0027] 20. Main ring-shaped airbag; 201. Main air intake pipe; 21. Secondary ring-shaped airbag; 211. Secondary air intake pipe; 22. Hollow column; 221. Main air supply pipe; 222. Secondary air supply pipe; 23. First spring; 24. Shock absorber rod; 25. Triggering structure; 251. Moving block; 252. Rectangular plate; 253. Moving rod; 254. Third spring;

[0028] 30. Sealing structure; 31. Slide plate; 311. Insertion hole; 312. Round hole; 32. Slide track;

[0029] 40. Locking device; 41. Insertion post; 42. Locking housing; 43. Moving post; 44. Second spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-7This utility model provides a technical solution: an elevator with energy-absorbing buffer at the bottom of the car, including a shaft 10, with slide rails 11 on both sides of the inner cavity of the shaft 10 slidably connected to the car body 12. The shaft 10 and the slide rails 11 provide a stable guiding path for the car body 12, ensuring that the car body 12 slides smoothly in the shaft 10, reducing friction and wear, and improving the long service life of the elevator.

[0032] A main ring-shaped airbag 20 is installed at the bottom of the elevator car 12. Inside the main ring-shaped airbag 20 is an uninflated secondary ring-shaped airbag 21. When the elevator falls or stops suddenly, the main ring-shaped airbag 20 can quickly absorb the impact energy, slow down the falling speed of the elevator car 12, effectively reduce the damage to passengers and elevator equipment, and ensure personnel safety. In the event that the main ring-shaped airbag 20 is damaged, the secondary ring-shaped airbag 21 can take over the function of the main ring-shaped airbag 20 and continue to provide cushioning, ensuring the safe operation of the elevator and increasing reliability.

[0033] Both annular airbags are connected to a hollow column 22 installed at the bottom of the box 12 via pipes. The first spring 23 inside the hollow column 22 is fixed with a shock-absorbing rod 24 that passes through the hollow column 22. The hollow column 22 has a sealing structure 30 that can slide up and down and seal the passage to the two airbags at different positions.

[0034] The sealing structure 30, through its sliding design, can seal the through hole of the main ring airbag 20 and open the through hole of the secondary ring airbag 21 in the event of damage to the main ring airbag 20. This ensures that the secondary ring airbag 21 can be quickly activated when the main ring airbag 20 ruptures, continuing to provide a buffering effect and enhancing the system's reliability and emergency response capabilities.

[0035] The hollow column 22 is provided with a locking device 40 for the locking sealing structure 30 on its outer ring, and the shock absorber 24 is provided with a triggering structure 25 for use with the sealing structure 30 and the locking device 40 on its outer ring. The housing 12 is equipped with an inflator 13 that communicates with the hollow column 22.

[0036] The inflator 13 provides gas to inflate the main ring-shaped airbag 20 and the secondary ring-shaped airbag 21. When the airbag needs to be replenished with gas, the inflator 13 can work quickly to ensure that the airbag can restore its buffering function in time. In the event of an elevator accident, the inflator 13 can work continuously to ensure the energy absorption effect of the airbag.

[0037] When the housing 12 falls, the main ring-shaped airbag 20 absorbs energy and cushions the fall. During the fall, if the main ring-shaped airbag 20 breaks, the shock absorber 24 contacts the bottom of the inner cavity of the shaft 10 and moves into the inner cavity of the hollow column 22. With the help of the first spring 23, it absorbs energy and cushions the fall. At the same time, the triggering structure 25 on the shock absorber 24 drives the sealing structure 30 to move, closing the through hole to the main ring-shaped airbag 20 and opening the through hole to the secondary ring-shaped airbag 21, so that the secondary ring-shaped airbag 21 is inflated and replaces the main ring-shaped airbag 20 to absorb energy and cushion the fall.

[0038] At least two shock-absorbing columns 14 are installed at the bottom of the housing 12. At least two sliders 16 slide on the slide rod 15 fixed between the shock-absorbing columns 14. A shock-absorbing spring 17 is fixed between the two sliders 16 and sleeved on the outer ring of the slide rod 15. The inclined rod 18 rotatably connected to the top of the slider 16 is rotatably connected to the bottom of the housing 12.

[0039] When the housing 12 falls and contacts the bottom of the inner cavity of the well 10, the two sliders 16 approach each other under the action of the inclined rod 18, compressing the shock-absorbing spring 17. The shock-absorbing spring 17 and the shock-absorbing column 14 work together to absorb energy and buffer.

[0040] Furthermore, the first spring 23 is fixedly connected to the top wall of the inner cavity of the hollow column 22, the main ring-shaped airbag 20 is provided with a main air intake pipe 201, and the secondary ring-shaped airbag 21 is provided with a secondary air intake pipe 211 that penetrates the main ring-shaped airbag 20.

[0041] The main ring airbag 20 and the secondary ring airbag 21 have separate air intake pipes, which avoids mutual interference between airbags, improves the stability of the system, and provides a backup plan for the airbag system.

[0042] Furthermore, the hollow column 22 has a main air supply pipe 221 connected to the main air intake pipe 201 via a pipe on its outer ring, and a secondary air supply pipe 222 connected to the secondary air intake pipe 211 via a pipe on its outer ring.

[0043] Gas can be delivered to the main annular airbag 20 and the secondary annular airbag 21 through the main gas delivery pipe 221 and the secondary gas delivery pipe 222, respectively.

[0044] Furthermore, the sealing structure 30 includes a sliding plate 31 disposed in the inner cavity of the hollow column 22, the surface of the sliding plate 31 is provided with an insertion hole 311, the locking device 40 includes an insertion post 41 passing through the insertion hole 311, and the triggering structure 25 includes a moving block 251.

[0045] The slide plate 31 enables the hollow column 22 to connect with the main annular airbag 20 but not with the secondary annular airbag 21 in the initial stage. After the triggering structure 25 on the shock absorber 24 drives the sealing structure 30, the slide plate 31 enables the hollow column 22 to disconnect from the main annular airbag 20 but connect with the secondary annular airbag 21.

[0046] Furthermore, the upper and lower sides of the insertion hole 311 and the upper and lower sides of the moving block 251 are provided with inclined surfaces of the same angle, and the surface of the slide plate 31 is provided with a circular hole 312.

[0047] The slope is to facilitate the movement of the block 251 into and out of the socket 311. The round hole 312 is blocked by the inner wall of the hollow column 22 in the initial stage. After the triggering structure 25 on the shock absorber 24 drives the sealing structure 30, the round hole 312 will move to the position connected with the auxiliary gas pipe 222. At this time, the main gas pipe 221 is blocked by the sliding plate 31.

[0048] Furthermore, the slide plate 31 is slidably connected to the slide rail 32 provided on the inner wall of the hollow column 22, and the bottom of the slide plate 31 is provided with a slope.

[0049] Furthermore, a locking housing 42 is fixed to the outside of the hollow column 22, and a movable column 43 that is fixedly connected to the insertion column 41 slides inside the locking housing 42. A second spring 44 sleeved on the outer ring of the movable column 43 is fixedly connected to the locking housing 42 and the insertion column 41.

[0050] In its initial state, the insertion post 41 is inserted into the insertion hole 311, positioning the slide plate 31 in its initial position, such as... Figure 5 As shown.

[0051] Furthermore, the movable block 251 is fixed with a movable rod 253 that penetrates the rectangular plate 252, the rectangular plate 252 is fixedly connected to the shock absorber rod 24, and the third spring 254 sleeved on the outer ring of the movable rod 253 is fixedly connected to the movable block 251 and the rectangular plate 252.

[0052] During the descent, if the main ring airbag 20 is not damaged, the shock absorber 24 will not contact the bottom of the inner cavity of the shaft 10 due to the obstruction of the main ring airbag 20, and the main ring airbag 20 provides a buffering effect; if the main ring airbag 20 is damaged, the gas in the main ring airbag 20 will be discharged from the damaged point, the box 12 will fall accordingly, the shock absorber 24 will touch the bottom of the inner cavity of the shaft 10, the shock absorber 24 will move towards the inner cavity of the hollow column 22, and the moving block 251 will also move synchronously.

[0053] When the inclined surface of the moving block 251 contacts the inclined surface at the bottom of the slide plate 31, the moving block 251 moves away from the slide plate 31 and abuts against the surface of the slide plate 31. As the shock absorber rod 24 continues to move, the moving block 251 enters the position of the insertion hole 311 and causes the insertion post 41 to disengage from the insertion hole 311. Then, the moving block 251 pushes the slide plate 31 further within the slide track 32 by inserting into the insertion hole 311, causing the hollow post 22 to disconnect from the main ring-shaped airbag 20 and establish communication with the secondary ring-shaped airbag 21. At this time, the gas generated by the inflator 13 enters the secondary ring-shaped airbag 21, causing it to inflate and expand, thereby replacing the main ring-shaped airbag 20 to complete the energy absorption and buffering function. Then the insertion post 41 is reset to prevent the slide plate 31 from moving downward.

[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An elevator with a box bottom energy-absorbing buffer, comprising a shaft (10), characterized in that: The sliding rail (11) on both sides of the inner cavity of the shaft (10) is slidably connected with a box body (12), the bottom of the box body (12) is provided with a main annular air bag (20), the main annular air bag (20) is provided with an un-inflated auxiliary annular air bag (21), both air bags are communicated with a hollow column (22) installed at the bottom of the box body (12) through pipelines, a first spring (23) in the inner cavity of the hollow column (22) is fixed with a damping rod (24) penetrating through the hollow column (22), the inner cavity of the hollow column (22) is provided with a sealing structure (30) which can slide up and down and seal the through holes of the two air bags at different positions respectively, the outer circle of the hollow column (22) is provided with a locking device (40) for locking the sealing structure (30), the outer circle of the damping rod (24) is provided with a trigger structure (25) which is used in cooperation with the sealing structure (30) and the locking device (40), and the box body (12) is provided with an inflator (13) communicated with the hollow column (22); At least two damping columns (14) are installed at the bottom of the box body (12), at least two sliding blocks (16) are slidably arranged on the sliding rod (15) fixed between the damping columns (14), a damping spring (17) is fixed between the two sliding blocks (16) and sleeved on the outer circle of the sliding rod (15), and the top of each sliding block (16) is rotatably connected with an inclined rod (18) rotatably connected with the bottom of the box body (12).

2. The elevator with the energy-absorbing buffer of the bottom of the car according to claim 1, characterized in that: The first spring (23) is fixedly connected with the top wall in the inner cavity of the hollow column (22), the main annular air bag (20) is provided with a main air inlet pipe (201), and the auxiliary annular air bag (21) is provided with an auxiliary air inlet pipe (211) penetrating through the main annular air bag (20).

3. The elevator with the energy-absorbing buffer of the bottom of the car according to claim 2, characterized in that: The outer circle of the hollow column (22) is provided with a main gas conveying pipe (221) communicated with the main air inlet pipe (201) through a pipeline, and the outer circle of the hollow column (22) is provided with an auxiliary gas conveying pipe (222) communicated with the auxiliary air inlet pipe (211) through a pipeline.

4. The elevator with the energy-absorbing buffer of the bottom of the car according to claim 1, characterized in that: The sealing structure (30) comprises a sliding plate (31) arranged in the inner cavity of the hollow column (22), the surface of the sliding plate (31) is provided with a bushing (311), the locking device (40) comprises a plug column (41) penetrating through the bushing (311), and the trigger structure (25) comprises a moving block (251).

5. The elevator with the energy-absorbing buffer of the bottom of the car according to claim 4, characterized in that: The upper and lower sides in the bushing (311) and the upper and lower sides of the moving block (251) are all provided with inclined surfaces with the same angle, and the surface of the sliding plate (31) is provided with a circular hole (312).

6. The elevator with the energy-absorbing buffer of the bottom of the car according to claim 4, characterized in that: The sliding plate (31) is slidably connected with a slide (32) arranged on the inner cavity wall of the hollow column (22), and the bottom of the sliding plate (31) is provided with an inclined surface.

7. The elevator with the energy-absorbing buffer of the bottom of the car according to claim 4, characterized in that: The outer circle of the hollow column (22) is fixedly connected with a locking shell (42), the locking shell (42) is slidably connected with a moving column (43) fixedly connected with the plug column (41), and a second spring (44) sleeved on the outer circle of the moving column (43) is fixedly connected with the locking shell (42) and the plug column (41).

8. The elevator with the energy-absorbing buffer of the bottom of the car according to claim 4, characterized in that: The moving block (251) is fixedly connected with a moving rod (253) penetrating through a rectangular plate (252), the rectangular plate (252) is fixedly connected with the damping rod (24), and a third spring (254) sleeved on the outer circle of the moving rod (253) is fixedly connected with the moving block (251) and the rectangular plate (252).

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