A new type of machine room less elevator structure

By installing a traction machine and sheave on the side of the shaft, a new machine room-less elevator structure has been developed, which solves the problems of large space occupation and inconvenient maintenance of traditional elevators, and achieves the effect of efficient use of building space and convenient maintenance.

CN224325002UActive Publication Date: 2026-06-05NINGBO YONGYU ELEVATOR MFG DEV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO YONGYU ELEVATOR MFG DEV
Filing Date
2025-02-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional elevators occupy a lot of floor space and increase shaft height, making maintenance inconvenient and hindering efficient use of building space.

Method used

The traction assembly, car traction mechanism, and counterweight traction mechanism are installed in the gap between the hoistway and the car body. The traction machine is located on the side of the hoistway. The car is raised and lowered through the cooperation of the traction sheave and the rope sheave, which avoids occupying extra floor space and facilitates maintenance.

Benefits of technology

It reduces reliance on additional floor space, improves building utilization, and facilitates maintenance, meeting the needs for space utilization and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224325002U_ABST
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Abstract

A new inorganic room elevator structure, its structure, including hoistway and car body, the hoistway front side is equipped with opening, the car body is set in the hothouse inside, still include traction assembly, car traction mechanism and counterweight traction mechanism, the traction assembly is equipped at the clearance between hoistway side wall and car body side, the car traction mechanism is equipped at the car body outside, the counterweight traction mechanism is equipped at the clearance between hoistway rear side inner wall and car body rear side, the counterweight traction mechanism includes counterweight and counterweight rope head, the counterweight is set in the clearance between hoistway rear side inner wall and car body rear side, the counterweight is rotatably equipped with counterweight reverse pulley on the counterweight, the counterweight rope head is fixedly equipped in the hoistway inside top. The utility model belongs to elevator field, and specifically refers to a new inorganic room electric.
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Description

Technical Field

[0001] This utility model belongs to the field of elevators, specifically referring to a novel machine room-less elevator structure. Background Technology

[0002] Traditional elevators typically have a machine room on the roof to house the drive unit and other control equipment. While this layout is mature and stable, it occupies valuable floor space. With rapid urbanization and soaring land costs, efficiently utilizing every inch of space has become a major challenge for building designers.

[0003] Most mainstream elevators on the market have an elevator machine room, which has the disadvantage of taking up a lot of space. It also requires increasing the height of the shaft and wasting floor space. Some elevators place the traction machine at the top or bottom of the elevator shaft. This method can effectively avoid taking up floor space, but because the traction machine is in an extreme position, it makes maintenance inconvenient and requires a certain height of the shaft. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to achieve the effect of neither occupying additional floor space nor increasing the height of the shaft, while ensuring good maintenance convenience.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: The novel machine-room-less elevator structure proposed by this utility model includes a shaft and a car body. An opening is provided on the front side of the shaft, and the car body is movably disposed inside the shaft. It also includes a traction assembly, a car traction mechanism, and a counterweight traction mechanism. The traction assembly is disposed in the gap between the shaft sidewall and the side of the car body. The traction assembly includes a traction machine, which is fixed to the side of the shaft. A traction sheave is axially connected to the front side of the traction machine. The car traction mechanism is disposed on the outside of the car body and includes a car rope head and a car traction rope. A car counter-rope sheave is rotatably connected to the lower part of the car body, and the car rope head is fixed inside the shaft. On the top side, one end of the car traction rope is fixedly connected to the car rope head, and the other end is wound around the upper part of the traction sheave. The middle part of the car traction rope is wound around the lower part of the car counter-rope sheave. The counterweight traction mechanism is located in the gap between the rear inner wall of the hoistway and the rear side of the car body. The counterweight traction mechanism includes a counterweight block, a counterweight rope head, and a counterweight traction rope. The counterweight block is movably located in the gap between the rear inner wall of the hoistway and the rear side of the car body. A counterweight counter-rope sheave is rotatably mounted on the counterweight block. The counterweight rope head is fixedly located on the top of the inner side of the hoistway. One end of the counterweight traction rope is fixedly connected to the counterweight rope head. The middle section of the counterweight traction rope passes between the counterweight counter-rope sheave and the counterweight block and is wound around the counterweight counter-rope sheave. The other end of the counterweight traction rope is wound around the upper part of the traction sheave.

[0006] Furthermore, guide grooves are provided on both sides of the car body, and guide blocks are fixed inside the hoistway, with the guide blocks and guide grooves being slidably fitted together.

[0007] Furthermore, a guide wheel is rotatably provided on the inner wall of the shaft near the traction machine, and the counterweight traction rope is movably connected to the upper part of the guide wheel.

[0008] Furthermore, the counterweight traction rope and the car traction rope are an integrated steel wire rope structure.

[0009] Furthermore, the car anti-cord pulleys are provided in two sets and are symmetrically arranged on both sides of the car body.

[0010] Furthermore, there are two sets of counterweight anti-cord pulleys located at two opposite corners of the counterweight block, and the two sets of counterweight anti-cord pulleys are radially tangentially on the same plane.

[0011] Furthermore, limiting blocks are fixed at the other two diagonal corners of the counterweight, and limiting grooves are opened on the inner side of the car body. The limiting blocks and limiting grooves are slidably fitted together.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows:

[0013] The novel machine-room-less elevator structure proposed in this solution places the traction assembly, car traction mechanism, and counterweight traction mechanism in the gap between the hoistway and the car body. Under the traction of the traction assembly and with the cooperation of the car traction mechanism and the counterweight traction mechanism on both sides, the car body can be raised and lowered. This significantly reduces the reliance on additional floor space, improves the overall utilization rate of the building, and places the traction machine on the side of the hoistway. The traction machine can be directly inspected and maintained by opening the side of the car body, making maintenance convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the first partial structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the second partial structure of the present invention.

[0018] Among them, 1. Hoistway, 101. Guide block, 102. Limiting groove, 2. Car body, 201. Guide groove, 3. Traction assembly, 301. Traction machine, 302. Traction sheave, 303. Guide sheave, 4. Car traction mechanism, 401. Car rope end, 402. Car traction rope, 403. Car anti-rope sheave, 5. Counterweight traction mechanism, 501. Counterweight block, 502. Limiting block, 503. Counterweight rope end, 504. Counterweight traction rope, 505. Counterweight anti-rope sheave.

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4 As shown, this utility model proposes a novel machine-room-less elevator structure, including a shaft 1 and a car body 2. The shaft 1 has an opening at its front. The car body 2 is movably disposed inside the shaft 1. Guide grooves 201 are provided on both sides of the car body 2. A guide block 101 is fixedly disposed inside the shaft 1. The guide block 101 and the guide groove 201 are slidably fitted together to guide the movement direction of the car body 2. The structure also includes a traction assembly 3, a car traction mechanism 4, and a counterweight traction mechanism 5. The traction assembly 3 is disposed in the gap between the side wall of the shaft 1 and the side of the car body 2. The traction assembly 3 includes a traction machine 301. 01 is fixed on the side of the hoistway 1. The traction machine 301 has a traction sheave 302 connected to the front shaft. The car traction mechanism 4 is located on the outside of the car body 2. The car traction mechanism 4 includes a car rope head 401 and a car traction rope 402. The lower part of the car body 2 is rotatably connected to a car anti-rope sheave 403. There are two sets of car anti-rope sheaves 403, which are symmetrically arranged on both sides of the car body 2. The car rope head 401 is fixed on the top of the inner side of the hoistway 1. One end of the car traction rope 402 is fixed to the car rope head 401, and the other end is wound around the upper part of the traction sheave 302. The middle part of the car traction rope 402 is wound around the lower part of the car anti-rope sheave 403.

[0022] like Figure 1 , Figure 3 and Figure 4As shown, the counterweight traction mechanism 5 is located in the gap between the rear inner wall of the hoistway 1 and the rear side of the car body 2. The counterweight traction mechanism 5 includes a counterweight block 501, a counterweight rope head 503, and a counterweight traction rope 504. The counterweight block 501 is movably located in the gap between the rear inner wall of the hoistway 1 and the rear side of the car body 2. A counterweight counter-rotating sheave 505 is rotatably mounted on the counterweight block 501. The counterweight rope head 503 is fixed to the top of the inner side of the hoistway 1. One end of the counterweight traction rope 504 is fixedly connected to the counterweight rope head 503. The middle section of the counterweight traction rope 504 passes between the counterweight counter-rotating sheave 505 and the counterweight block 501 and is wound around the counterweight counter-rotating sheave 505. The other end of the counterweight traction rope 504 is wound around the upper part of the traction sheave 302.

[0023] like Figure 1-4 As shown, a guide wheel 303 is rotatably installed on the inner wall of the hoistway 1 near the traction machine 301. The counterweight traction rope 504 is movably wound around the upper part of the guide wheel 303 to limit the position of the counterweight traction rope 504 and prevent it from rubbing against the car body 2. The counterweight traction rope 504 and the car traction rope 402 are an integral steel wire rope structure. There are two sets of counterweight anti-rope wheels 505 located at two opposite corners of the counterweight block 501. The two sets of counterweight anti-rope wheels 505 are radially tangentially on the same plane. Limiting blocks 502 are fixed at the other two opposite corners of the counterweight block 501. A limiting groove 102 is opened on the inner side of the car body 2. The limiting block 502 and the limiting groove 102 are slidably fitted together to guide and limit the counterweight block 501, prevent it from shaking during movement, and increase the movement stability of the counterweight block 501.

[0024] In practical use, when the car body 2 needs to move upward, the traction machine 301 rotates the traction wheel 302 to control the extension of the counterweight traction ropes 504 on both sides and the shortening of the car traction rope 402. When the counterweight traction rope 504 extends, under the action of gravity, the counterweight traction rope 504 moves through the lower part of the counterweight anti-rope wheel 505. Under the guidance of the limiting groove 102 and the limiting block 502, the counterweight block 501 descends. At the same time, under the traction of the shortening of the car traction rope 402, the car traction rope 402 moves around the car anti-rope wheel 403. Through the car anti-rope wheel 403, the car body 2 and the guide grooves 201 on both sides of the car body 2 rise along the guide block 101, thus completing the upward movement of the car body 2.

[0025] When the car body 2 needs to descend, the traction machine 301 rotates the traction sheave 302 to control the shortening of the counterweight traction ropes 504 on both sides and the extension of the car traction rope 402. When the counterweight traction rope 504 shortens, it moves through the lower part of the counterweight anti-rope sheave 505. The counterweight traction rope 504 pulls the counterweight anti-rope sheave 505 and the counterweight block 501. Under the guidance of the limiting groove 102 and the limiting block 502, the counterweight block 501 rises. At the same time, under the traction of the extended car traction rope 402, the car traction rope 402 moves around the car anti-rope sheave 403. Under the action of gravity, the car body 2 and the guide grooves 201 on both sides of the car body 2 descend along the guide block 101, completing the descent of the car body 2.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel machine-room-less elevator structure, comprising a shaft and a car body, wherein the shaft has an opening at its front side, and the car body is movably disposed inside the shaft, characterized in that, It also includes a traction assembly, a car traction mechanism, and a counterweight traction mechanism. The traction assembly is located in the gap between the hoistway sidewall and the side of the car body. The car traction mechanism is located on the outside of the car body. The counterweight traction mechanism is located in the gap between the rear inner wall of the hoistway and the rear side of the car body. The counterweight traction mechanism includes a counterweight block and a counterweight rope head. The counterweight block is movably located in the gap between the rear inner wall of the hoistway and the rear side of the car body. A counterweight anti-rope pulley is rotatably mounted on the counterweight block. The counterweight rope head is fixed to the top of the inner side of the hoistway.

2. The novel machine-room-less elevator structure according to claim 1, characterized in that: The traction assembly includes a traction machine, which is fixed on the side of the shaft, and a traction sheave is connected to the front shaft of the traction machine.

3. The novel machine-room-less elevator structure according to claim 2, characterized in that: The car traction mechanism includes a car rope head and a car traction rope. The lower part of the car body is rotatably connected to a car deflector. The car rope head is fixed to the top of the inner side of the hoistway. One end of the car traction rope is fixed to the car rope head, and the other end is wound around the upper part of the traction sheave. The middle part of the car traction rope is wound around the lower part of the car deflector.

4. The novel machine-room-less elevator structure according to claim 3, characterized in that: The counterweight traction mechanism also includes a counterweight traction rope. One end of the counterweight traction rope is fixedly connected to the counterweight rope head. The middle section of the counterweight traction rope passes between the counterweight counterweight sheave and the counterweight block and is wound around the counterweight counterweight sheave. The other end of the counterweight traction rope is wound around the upper part of the traction sheave.

5. The novel machine-room-less elevator structure according to claim 4, characterized in that: The car body has guide grooves on both sides, and a guide block is fixed inside the hoistway. The guide block and the guide groove are slidably fitted together.

6. The novel machine-room-less elevator structure according to claim 5, characterized in that: The inner wall of the shaft is equipped with a guide wheel near the traction machine, and the counterweight traction rope is movably connected to the upper part of the guide wheel.

7. A novel machine-room-less elevator structure according to claim 6, characterized in that: The counterweight traction rope and the car traction rope are an integrated steel wire rope structure.

8. A novel machine-room-less elevator structure according to claim 7, characterized in that: The car's anti-cord pulleys are provided in two sets and are symmetrically arranged on both sides of the car body.

9. A novel machine-room-less elevator structure according to claim 8, characterized in that: The counterweight anti-corrosion rope pulleys are provided in two sets and located at two opposite corners of the counterweight block. The two sets of counterweight anti-corrosion rope pulleys are radially tangentially on the same plane.

10. A novel machine-room-less elevator structure according to claim 9, characterized in that: Limiting blocks are fixed at the other two opposite corners of the counterweight, and limiting grooves are opened on the inner side of the car body. The limiting blocks and limiting grooves are slidably fitted together.