Traction type elevator system with compact structure

Abstract

The utility model discloses a compact-structure traction type elevator system, which comprises a traction system, a car system, a control system and a guide rail, and is characterized in that the traction system is used for connecting and driving the car system to vertically move and stop moving on the guide rail; the lift car system comprises a first guide shoe and a second guide shoe which are provided with braking devices, and the braking devices are used for changing the relative position states between the first guide shoe and the guide rail and between the second guide shoe and the guide rail. The guide rails are provided with position monitoring devices for monitoring the position difference value between the position of the top of the lift car frame and the position of the elevator lift car body stopping landing ground. The control system is used for controlling the working state of the braking device according to the position difference value. The traction type elevator system with the compact structure can be applied to places needing lower top layer height and lower pit depth on the premise of meeting the standard of a traction type elevator.

Description

Technical Field

[0001] This invention relates to the field of traction elevator system technology, and more specifically, to a compact traction elevator system. Background Technology

[0002] In locations with strict space utilization requirements, installing elevators and shafts presents challenges such as insufficient ceiling height, limited pit depth, and narrow shaft space. These issues may prevent the installation of traditional elevators or necessitate large-scale structural modifications, increasing costs and construction complexity. Therefore, it is necessary to modify the existing elevator system structure and propose a new elevator system to address these problems. Summary of the Invention

[0003] To address the problems in the background technology, this utility model proposes a compact traction elevator system that can be applied in places where lower top floor height and lower pit depth are required.

[0004] This utility model proposes a compact traction elevator system, comprising: elevator equipment and a guiding system. The guiding system is vertically installed inside the shaft. The elevator equipment includes a traction system, a car system, and a control system. The guiding system includes guide rails.

[0005] The traction system is used to connect and drive the car system to move vertically and stop moving on the guide system;

[0006] The car system includes: an elevator car body, a car frame, a first guide shoe, and a second guide shoe. The car frame is located at the bottom of the elevator car body, and the first and second guide shoes are located on both sides of the car frame. They are slidably engaged with the guide rails, allowing the car frame and the elevator car body above it to move vertically along the guide rails. The first and second guide shoes are equipped with braking devices to change the relative position between the first and second guide shoes and the guide rails.

[0007] The guide rail is equipped with a position monitoring device, which is used to monitor the position difference between the top of the car frame and the ground position of the elevator car body at the landing, and transmit the position difference to the control system.

[0008] The control system is used to control the operating state of the braking device based on the position difference.

[0009] Furthermore, the location monitoring device includes photoelectric sensors.

[0010] Furthermore, the control system includes a microprocessor.

[0011] Furthermore, the top floor of the elevator is located above ground, the shaft is located inside ground, and the second-to-top floor of the elevator is located at the upper end of the shaft.

[0012] Furthermore, the traction system uses a traction machine mounting bracket to fix the traction machine assembly to the upper part of the second-to-last floor of the elevator.

[0013] Furthermore, the elevator equipment also includes a weight balancing system, which is located at both ends of the traction system and is used to balance the weight of the car system.

[0014] Furthermore, the traction ratio of the car system is 2:1, and the traction ratio of the weight balance system is 4:1.

[0015] Furthermore, the control system is located on the second-to-last floor of the elevator.

[0016] Furthermore, elevator equipment also includes: safety systems.

[0017] Furthermore, the safety system includes: hook, counterweight buffer, car buffer, speed governor, hoistway lighting, pit bottom ladder and rope head beam.

[0018] The beneficial effects of this utility model include:

[0019] (1) To avoid the phenomenon that the car system stops at the landing station due to inertia when it stops moving under the drive of the traction system.

[0020] (2) Reduce the design height of the top floor of the elevator, so that there is no need to reserve an excessively high stopping buffer above the top floor, thereby saving the space occupied by the top floor and making the structure of the top floor more concise, which is conducive to the sightseeing effect of the top floor.

[0021] (3) Reduce the stroke of the weight balance system so that the pit depth of the hoistway is limited only by the height of the car frame of the car system.

[0022] (4) It can be applied to places that require lower top floor height and lower pit depth, provided that the standards of traction elevators are met. Attached Figure Description

[0023] To facilitate understanding of the invention, it will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. These drawings depict only typical embodiments of the invention and should not be considered as limiting the scope of protection of the invention.

[0024] Figure 1 This is a front view of the structure of one embodiment of the compact traction elevator system of this utility model.

[0025] Figure 2 This is a top view of the structure of one embodiment of the compact traction elevator system of this utility model.

[0026] Figure 3 for Figure 2 Supplementary image.

[0027] Figure 4 This is a front view of the landing door of the top floor station according to one embodiment of the present invention.

[0028] Figure 5 This is a front view of the landing door of the second-to-top floor station according to one embodiment of the present invention.

[0029] Figure Labels

[0030] 1-Elevator equipment; 11-Traction system; 12-Car system; 13-Control system; 14-Weight balancing system; 15-Safety system; 111-Traction machine mounting frame; 112-Traction machine assembly; 113-Top deflector sheave; 114-Car deflector sheave; 115-Counterweight deflector sheave; 116-Traction rope; 121-Elevator car body; 122-Car frame; 123-First guide shoe; 124-Second guide shoe; 125-Braking device ; 126-Car rope head plate; 141-Counterweight rope head plate; 151-Hook; 152-Counterweight buffer; 153-Car buffer; 154-Speed ​​governor; 155-Hoistway lighting; 156-Pit bottom ladder; 157-Rope head beam; 2-Guide system; 21-Guide rail; 211-Position monitoring device; 22-Guide rail bracket; 3-Hoistway; 4-Door system; 41-Landing door; 42-Car door; 411-External sign box; 412-Cabinet door. Detailed Implementation

[0031] The embodiments of the present invention are described below with reference to the accompanying drawings to enable those skilled in the art to better understand and implement the present invention. However, the listed embodiments are not intended to limit the present invention. In the absence of conflict, the following embodiments and the technical features in the embodiments can be combined with each other, wherein the same components are indicated by the same reference numerals.

[0032] like Figure 1-5 As shown, in one embodiment, the compact traction elevator system of this utility model includes: elevator equipment 1 and guide system 2. The guide system 2 is vertically installed inside the shaft 3. The elevator equipment 1 includes a traction system 11, a car system 12 and a control system 13. The guide system 2 includes a guide rail 21. The traction system 11 is used to connect and drive the car system 12 to perform vertical movement and stop movement on the guide system 2.

[0033] The car system 12 is used to carry passengers or goods and includes: an elevator car body 121, a car frame 122, a first guide shoe 123, and a second guide shoe 124. The car frame 122 is located at the bottom of the elevator car body 121, and the first guide shoe 123 and the second guide shoe 124 are located on both sides of the car frame 122. They are slidably engaged with the guide rail 21 on the guide system 2, allowing the car frame 122 and the elevator car body 121 above it to move vertically along the guide rail 21. The first guide shoe 123 and the second guide shoe 124 are equipped with a braking device 125, which is used to change the relative position between the first guide shoe 123 and the second guide shoe 124 and the guide rail 21.

[0034] The guide rail 21 is equipped with a position monitoring device 211, which is used to monitor the position difference between the top of the car frame 122 and the ground position of the elevator car body 121 at the landing, and transmit the position difference to the control system 13.

[0035] The control system 13 is used to control the working state of the braking device 125 according to the position difference.

[0036] In one example, the location monitoring device 211 consists of a photoelectric sensor and auxiliary components.

[0037] In one example, the control system 13 consists of a microprocessor and auxiliary circuitry.

[0038] In one embodiment of the present invention, the top floor of the elevator is located above the machine platform, the shaft 3 is located inside the machine platform, and the second-to-top floor is located inside the upper part of the shaft 3. When a user enters the elevator car 121 through other floors and sets the top floor as the stopping floor of the elevator car 121, the traction system 11 drives the car system 12 to move vertically upward along the guide rail 21 on the guide system 2, and stops moving at the stopping floor. During the process of the elevator car 121 reaching the landing station, the position monitoring device 211 monitors the position difference between the top position of the car frame 122 and the ground position of the landing station, and transmits the position difference to the control system 13. If the position difference indicates that the top position of the car frame 122 is the same as the ground position of the landing station, the control system 13 controls the braking device 125 on the first guide shoe 123 and the second guide shoe 124 to perform a braking operation, so that the top position of the car frame 122 is the same as the ground position of the landing station. This avoids the phenomenon that the car system 12, driven by the traction system 11, stops at the landing station due to inertia and the landing position is higher than the ground position of the landing station. Furthermore, since the top position of the car frame 122 is the same as the ground position of the landing station, the design height of the top floor of the elevator can be reduced, eliminating the need to reserve an excessively high stopping buffer zone above the top floor, thus saving space and height occupied by the top floor, making the structure of the top floor more concise, and facilitating sightseeing at the top floor.

[0039] In one embodiment, the guide rail 21 is disposed inside the shaft 3 via the guide rail bracket 22.

[0040] In one embodiment, the elevator equipment 1 of this utility model further includes a weight balancing system 14, which is located at both ends of the traction system 11 and the car system 12, and is used to balance the weight of the car system 12.

[0041] Preferably, the traction system 11 fixes the traction machine assembly 112 inside the upper part of the second-to-top floor of the elevator by means of the traction machine fixing frame 111, instead of setting it inside the upper part of the top floor, thereby further saving the space height occupied by the top floor.

[0042] More preferably, the traction system 11, the car system 12, and the weight balance system 14 are respectively provided with a top rope head plate, a car rope head plate 126, and a counterweight rope head plate 141. The top rope head plate, the car rope head plate 126, and the counterweight rope head plate 141 are respectively used to install the top anti-rope sheave 113, the car anti-rope sheave 114, and the counterweight anti-rope sheave 115. The top anti-rope sheave 113 is connected to the car anti-rope sheave 114 and the counterweight anti-rope sheave 115 respectively through the traction rope 116.

[0043] In one embodiment, the traction rope 116 is a steel wire rope.

[0044] In one embodiment, the elevator equipment 1 of this utility model further includes a safety system 15, which includes a hook 151, a counterweight buffer 152, a car buffer 153, a speed governor 154, a shaft lighting 155, a pit bottom ladder 156, and a rope head beam 157.

[0045] like Figure 2-3 As shown, in order to reduce the depth of the pit in the hoistway 3, the car system 12 and the weight balance system 14 use different traction ratios. The car system 12 adopts a 2:1 traction ratio arrangement, and the weight balance system 14 adopts a 4:1 traction ratio arrangement, thereby further reducing the stroke of the weight balance system 14, so that the depth of the pit in the hoistway 3 is only limited by the height of the car frame 122 of the car system 12.

[0046] like Figure 4-5 As shown, in one embodiment, the compact traction elevator system of this utility model further includes a door system 4, which includes a landing door 41 and a car door 42. Preferably, the landing door 41 is externally provided with an outer door box 411; more preferably, only the landing door of the second-to-top floor of the elevator is provided with a cabinet door 412 for housing the control cabinet of the control system 13. In this case, only the second-to-top floor is provided with a control cabinet for housing the control system 13, and the control system 13 is only located at the second-to-top floor.

[0047] This utility model presents a compact traction elevator system that can be applied to locations requiring lower top floor height and lower pit depth, while meeting the standards for traction elevators.

[0048] The embodiments described above are merely preferred embodiments of the present invention. The terms "in one embodiment," "in another embodiment," "in yet another embodiment," or "in still another embodiment" used in this specification all refer to one or more of the same or different embodiments according to this disclosure. Ordinary variations and substitutions made by those skilled in the art within the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A compact structure type traction elevator system characterized by, include: Elevator equipment and guiding system. The guiding system is vertically installed inside the hoistway. The elevator equipment includes a traction system, a car system, and a control system. The guiding system includes guide rails. The traction system is used to connect and drive the car system to move vertically and stop moving on the guide system; The car system includes: an elevator car body, a car frame, a first guide shoe, and a second guide shoe. The car frame is located at the bottom of the elevator car body, and the first and second guide shoes are located on both sides of the car frame. They are slidably engaged with the guide rails, allowing the car frame and the elevator car body above it to move vertically along the guide rails. The first and second guide shoes are equipped with braking devices to change the relative position between the first and second guide shoes and the guide rails. The guide rail is equipped with a position monitoring device, which is used to monitor the position difference between the top of the car frame and the ground position of the elevator car body at the landing, and transmit the position difference to the control system. The position monitoring device includes photoelectric sensors. The control system is used to control the operating state of the braking device based on the position difference.

2. The compact structure type traction elevator system according to claim 1, characterized by, The control system includes a microprocessor.

3. The compact structure type traction elevator system according to claim 1, characterized by, The top floor of the elevator is located above ground, and the shaft is located inside ground. The second-to-top floor of the elevator is located at the upper end of the shaft.

4. The compact structure type traction elevator system according to claim 1, characterized by, The traction system uses a traction machine mounting bracket to fix the traction machine assembly to the upper part of the second-to-last floor of the elevator.

5. The compact traction elevator system according to claim 1, characterized in that, The elevator equipment also includes a weight balancing system, which is located at both ends of the traction system and is used to balance the weight of the car system.

6. The compact structure type traction elevator system according to claim 5, characterized in that, The traction ratio of the car system is 2:1, and the traction ratio of the weight balance system is 4:

1.

7. The compact structure type traction elevator system according to claim 1, characterized by, The control system is located on the second-to-top floor of the elevator.

8. The compact structure type traction elevator system according to claim 1, characterized by, Elevator equipment also includes: safety systems.

9. The compact structure type traction elevator system according to claim 8, characterized in that, The safety system includes: hook, counterweight buffer, car buffer, speed governor, hoistway lighting, pit bottom ladder and rope head beam.

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