Spiral elevator

Abstract

The utility model relates to a spiral elevator which comprises a guide rail frame, an elevator shaft defined by the guide rail frame, an elevator car sliding up and down along the elevator shaft and a screw driving device driving the elevator car to ascend and descend. The lift car comprises an outer lift car body and an inner lift car body, the outer lift car body is arranged on the outer side of the inner lift car body in a sleeving mode, and the inner lift car body is a man-carrying or object-carrying platform; the screw rod driving device comprises a screw rod, a nut and a driving part for driving the screw rod to rotate; the screw rod is vertically arranged in the elevator shaft and penetrates through the outer lift car, the two ends of the screw rod are rotatably arranged at the upper end and the lower end of the elevator shaft, the screw rod is sleeved with a nut, and the nut is installed on the outer lift car. The lift car adopts the design of a double-layer structure, and is good in stability; the design of the inner cavity of the outer lift car allows the screw rod to penetrate therein, so that the space is optimized, and the whole elevator is more compact in structure and balanced in stress; a roller guide rail mechanism is adopted, and friction and noise are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and in particular relates to a spiral elevator. Background Art

[0002] With the development of modern architecture, elevators are used more and more widely. As a convenient and fast tool of life, elevators have become an indispensable part of people's lives.

[0003] In existing spiral elevators, the screw is arranged on the outside of the car. This design structure has the following defects: 1. Additional space is required to install the screw transmission device, and the space utilization rate is not high; 2. The screw and guide rail are placed on one side of the car. The weight and rated load of the car are applied to the screw and guide rail. The screw and guide rail are subjected to huge bending moments during operation, which can easily cause deformation of the screw and guide rail, affecting their service life; 3. The car is matched with the guide rail through a guide shoe, and a shoe lining is installed between the guide shoe and the guide rail. The screw elevator with the above structure aggravates the wear of the guide shoe and requires frequent replacement of the shoe lining, which is time-consuming, labor-intensive and costly. Those skilled in the art urgently need to solve the above technical problems. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a spiral elevator with high space utilization, high stability and safety, high transmission effect and low noise.

[0005] The utility model adopts the following technical solutions:

[0006] A spiral elevator comprises a guide rail frame, an elevator shaft surrounded by the guide rail frame, a car sliding up and down along the elevator shaft, and a screw drive device driving the car to move up and down;

[0007] The car includes an outer car and an inner car, wherein the outer car is placed outside the inner car, and the inner car is a platform for carrying people or goods;

[0008] A screw drive device, comprising a screw, a nut and a driving component for driving the screw to rotate;

[0009] The screw is vertically placed in the elevator shaft, and the screw is passed through the outer car. Its two ends are rotatably arranged at the upper and lower ends of the elevator shaft. A nut is sleeved on the screw, and the nut is installed on the outer car.

[0010] In a preferred embodiment of the present invention, the guide rail frame is vertically arranged on the peripheral side of the car, and a plurality of guide rail frames are arranged. A roller guide rail mechanism is installed on the side of the guide rail frame facing the car.

[0011] In a preferred embodiment of the present invention, the roller guide rail mechanism includes a guide rail, a roller bracket and a roller. The guide rail is installed on the guide rail bracket. Two rollers are respectively provided on both sides of the guide rail. The rollers are installed on the peripheral side of the outer car through the roller bracket.

[0012] In a preferred embodiment of the present invention, the car further includes a shock-absorbing component, which is arranged at the connection between the outer car and the inner car, and the shock-absorbing component is configured as a rubber pad.

[0013] In a preferred embodiment of the present invention, two nuts are provided, which are fixedly connected to the top and bottom of the outer car respectively, and the two nuts are both sleeved on the screw rod.

[0014] In a preferred embodiment of the present invention, a top plate and a bottom plate are provided at both ends of the guide rail frame, both ends of the screw are rotatably mounted on the top plate and the bottom plate through bearings, the driving component is mounted on the top plate, and its output end is connected to the screw.

[0015] Beneficial effects:

[0016] The utility model relates to a spiral lift elevator, the car adopts a double-layer structure design, which has good stability. The frame structure of the outer car and the passenger and cargo platform of the inner car jointly ensure the safety during the use of the elevator. The shock-absorbing component can reduce the impact of vibration during the operation of the elevator on the inner car.

[0017] The design of the inner cavity of the outer car allows the screw to pass through it, optimizing the space and making the entire elevator structure more compact. At the same time, the force direction of the screw and the guide rail frame is vertical. The vertical force design helps to reduce the deformation of the screw, making the screw transmission effect better and the service life longer;

[0018] The nut of the utility model is fixed on the outer car, and the screw and the nut are directly matched to achieve higher transmission efficiency;

[0019] The utility model is provided with a roller guide rail mechanism on the side of the guide rail frame facing the car, which has two sets of rollers acting on both sides of the guide rail, so that the force is evenly applied and the balance of the sliding surface is maintained, thereby reducing the friction between the rollers and the guide rail and reducing the noise of the car during operation.

[0020] The spiral elevator of the utility model has high space utilization rate, high stability and safety, high transmission effect and low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a spiral elevator described in the present invention;

[0022] Figure 2This is a partial structural diagram of a spiral elevator according to the present invention;

[0023] Figure 3 This is a front view of a spiral elevator according to the present invention;

[0024] Figure 4 A top view of a partial structure of a spiral elevator according to the present invention;

[0025] Figure 5 For the utility model Figure 4 A local enlarged view of point A;

[0026] Figure 6 It is a left view of a spiral elevator described in the present invention.

[0027] In the figure: 1 guide rail frame;

[0028] 2 car, 21 outer car, 22 inner car, 23 shock absorbing component;

[0029] 3 screw drive device, 31 screw, 32 nut, 33 drive component;

[0030] 4 roller guide mechanism, 41 guide rail, 42 roller bracket, 43 roller;

[0031] 5 top plate;

[0032] 6 bottom plates. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figure 1 As shown, a spiral elevator comprises a guide rail frame 1, an elevator shaft surrounded by the guide rail frame 1, a car 2 sliding up and down along the elevator shaft, and a screw drive device 3 driving the car 2 to move up and down;

[0035] Car 2, such as Figure 2 As shown, it includes an outer car 21 and an inner car 22, wherein the outer car 21 is placed on the outer side of the inner car 22, and the two are arranged in a telescopic manner;

[0036] Screw drive 3, such as Figure 3As shown, it includes a screw 31, a nut 32 and a driving component 33 for driving the screw 31 to rotate. The screw 31 is vertically placed in the elevator shaft, and the screw 31 is passed through the outer car 21. Its two ends are rotatably arranged at the upper and lower ends of the elevator shaft. A nut 32 is sleeved on the screw 31, and the nut 32 is installed on the outer car 21.

[0037] The working principle and beneficial effects of the above technical solution are:

[0038] When the elevator of the present invention is in normal use, the screw 31 rotates forward or reversely under the drive of the driving component 33 to drive the car 2 to achieve up and down reciprocating motion under the guidance of the guide rail frame 1.

[0039] The outer car 21 is set as a frame structure, and the inner car 22 is a passenger or cargo platform. The inner car 22 is placed in the outer car 21. The double-layer structure can provide better stability and safety, and the outer car 21 is formed with an inner cavity for the screw 31 to pass through. The nut 32 is directly fixed on the outer car 21, directly driving the car 2 to move up and down. The direct cooperation between the screw 31 and the nut 32 can achieve higher transmission efficiency. At the same time, the force direction of the screw 31 and the guide rail frame 1 of this structure is vertical. The vertical force design helps to reduce the deformation of the screw 31, so that the transmission effect of the screw 31 is good and the service life is long.

[0040] In one embodiment, Figure 4 As shown, the guide rail frame 1 is vertically arranged on the peripheral side of the car 2. There are multiple guide rail frames 1. A roller guide rail mechanism 4 is installed on the side of the guide rail frame 1 facing the car 2.

[0041] The working principle and beneficial effects of the above technical solution are:

[0042] The number of guide rail frames 1 of the present invention is four, and the four guide rail frames 1 are arranged in groups of two on the left and right sides of the car 2. The arrangement of the guide rail frames 1 ensures the stability and accuracy of the car 2 during vertical movement and prevents the car 2 from deviating from the predetermined trajectory.

[0043] In one embodiment, Figure 5 As shown, the roller guide mechanism 4,

[0044] It includes a guide rail 41, a roller bracket 42 and a roller 43. The guide rail 41 is installed on the guide rail bracket 1. Two rollers 43 are respectively provided on both sides of the guide rail 41. The rollers 43 are both installed on the peripheral side of the outer car 21 through the roller bracket 42.

[0045] The working principle and beneficial effects of the above technical solution are:

[0046] The guide rail 41 of the present invention is arranged as a T-shaped guide rail, and the rollers 43 are grouped in pairs. The two groups of rollers 43 act on both sides of the guide rail 41, so that the force is evenly distributed to maintain the balance of the sliding surface, reduce the friction between the rollers 43 and the guide rail 41, and at the same time reduce the noise of the car 2 during operation.

[0047] In one embodiment, the car 2 further includes a shock absorbing component 23.

[0048] The shock absorbing component 23 is provided at the connection between the outer car 21 and the inner car 22 , and the shock absorbing component 23 is provided as a rubber pad.

[0049] The working principle and beneficial effects of the above technical solution are:

[0050] The shock-absorbing component 23 of the present invention is arranged at the top and bottom of the contact between the inner car 22 and the outer car 21, reducing the impact of vibration during the operation of the elevator on the inner car 22. The shock-absorbing component 23 is made of rubber material, which has good elasticity and shock-absorbing performance, thereby improving the comfort and safety of passengers.

[0051] In one embodiment, Figure 6 As shown, two nuts 32 are provided, which are fixedly connected to the top and bottom of the outer car 21 respectively, and the two nuts 32 are both sleeved on the screw 31;

[0052] The working principle and beneficial effects of the above technical solution are:

[0053] The two nuts 32 of the utility model are respectively located at the top and bottom of the outer car 21, which can provide stable support and better maintain the horizontal state of the car 2 when the load of the car 2 changes; in an emergency, such as when the screw 31 fails, the two nuts 32 can provide additional safety protection and reduce the risk of sudden falling of the car 2; the symmetrical arrangement of the two nuts 32 helps to maintain balance when the car 2 moves up and down, and reduces tilting or shaking caused by uneven weight distribution of the car 2. This design makes the elevator have better balance, stability and safety.

[0054] In one embodiment, a top plate 5 and a bottom plate 6 are provided at both ends of the guide rail frame 1, and both ends of the screw 31 are rotatably mounted on the top plate 5 and the bottom plate 6 through bearings. The driving component 33 is installed on the top plate 5, and its output end is connected to the screw 31.

[0055] The working principle and beneficial effects of the above technical solution are:

[0056] The driving component 33 is installed on the top plate 5, which makes the structure of the entire elevator system more compact, convenient to install, reduces the difficulty of construction, occupies less space, and does not require additional reserved installation position for the driving component 33.

[0057] In summary:

[0058] The utility model discloses a spiral elevator, in which the car 2 adopts a double-layer structure design with good stability. The frame structure of the outer car 21 and the passenger and cargo platform of the inner car 22 jointly ensure the safety during the use of the elevator. The shock-absorbing component 23 can reduce the impact of vibration during the operation of the elevator on the inner car 22. The design of the inner cavity of the outer car 21 allows the screw 31 to pass through it, optimizing the space and making the entire elevator structure more compact. At the same time, the force direction of the screw 31 and the guide rail frame 1 is vertical. The vertical force design helps to reduce the deformation of the screw 31, so that the transmission effect of the screw 31 is good and the service life is long.

[0059] The nut 32 of the present invention is directly fixed on the outer car 21, and the screw 31 and the nut 32 are directly matched to achieve higher transmission efficiency;

[0060] A roller guide rail mechanism 4 is installed on the side of the guide rail frame 1 facing the car 2 of the utility model. It has two sets of rollers 43 acting on both sides of the guide rail 41, which bears force evenly and maintains the balance of the sliding surface, reduces the friction between the rollers 43 and the guide rail 41, and reduces the noise of the car 2 during operation.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. The terms "front", "back", "left" and "right" used in the text are not specific and are mainly used to more intuitively illustrate the technical solution and do not have a limiting effect. Those skilled in the art should understand that the above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spiral elevator, characterized in that: It comprises a guide rail frame (1), an elevator shaft surrounded by the guide rail frame (1), a car (2) sliding up and down along the elevator shaft, and a screw drive device (3) driving the car (2) to move up and down; The car (2) comprises an outer car (21) and an inner car (22), wherein the outer car (21) is placed outside the inner car (22), and the inner car (22) is a platform for carrying people or goods; A screw drive device (3), comprising a screw (31), a nut (32), and a driving component (33) for driving the screw (31) to rotate; The screw rod (31) is vertically placed in the elevator shaft, and the screw rod (31) is passed through the outer car (21), and its two ends are rotatably arranged at the upper and lower ends of the elevator shaft. A nut (32) is sleeved on the screw rod (31), and the nut (32) is installed on the outer car (21).

2. A spiral elevator according to claim 1, characterized in that: The guide rail frame (1) is vertically arranged on the peripheral side of the car (2), and a plurality of guide rail frames (1) are arranged. A roller guide rail mechanism (4) is installed on the side of the guide rail frame (1) facing the car (2).

3. The spiral elevator according to claim 2, characterized in that: The roller guide rail mechanism (4) comprises a guide rail (41), a roller bracket (42) and a roller (43); the guide rail (41) is mounted on the guide rail bracket (1); two rollers (43) are respectively provided on both sides of the guide rail (41); and the rollers (43) are both mounted on the peripheral side of the outer car (21) through the roller bracket (42).

4. The spiral elevator according to claim 1, characterized in that: The car (2) further comprises a shock absorbing component (23), wherein the shock absorbing component (23) is arranged at the connection between the outer car (21) and the inner car (22), and the shock absorbing component (23) is configured as a rubber pad.

5. The spiral elevator according to claim 1, characterized in that: Two nuts (32) are provided and fixedly connected to the top and bottom of the outer car (21) respectively. The two nuts (32) are both sleeved on the screw rod (31).

6. The spiral elevator according to claim 1, characterized in that: A top plate (5) and a bottom plate (6) are provided at both ends of the guide rail frame (1); both ends of the screw rod (31) are rotatably mounted on the top plate (5) and the bottom plate (6) via bearings; the driving component (33) is mounted on the top plate (5), and its output end is connected to the screw rod (31).

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