Lift car lifting device driven by motor at bottom of hoistway

Abstract

The utility model discloses a lift car lifting device driven by a motor at the bottom of a hoistway, which comprises a driving module comprising a driving main machine, a lower guide wheel, an upper guide wheel and a steel wire rope, the driving main machine is arranged on the bottom surface of the lift hoistway, and the upper guide wheel and the lower guide wheel are respectively arranged at the upper end and the lower end of the lift hoistway. One end of the steel wire rope is connected with the output end of the driving host, and the other opposite end of the steel wire rope is fixedly mounted on the elevator car; the guide module comprises a guide rail and a guide roller group, the guide rail is fixedly mounted on the side wall of the elevator shaft, a mounting frame is arranged on one side of the elevator car, and the guide roller group is fixedly mounted on the mounting frame and is connected to the guide rail in a sliding manner; and the access door is arranged on the side wall of the elevator shaft. Compared with the prior art, the problem that traditional lifting equipment needing a top-layer machine room is inconvenient to install and not easy to maintain is solved.

Description

Technical Field

[0001] This utility model relates to the field of elevator car technology, and in particular to a car lifting device driven by a motor at the bottom of the shaft. Background Technology

[0002] Traditional lifting equipment (such as elevators) typically employs a counterweight balancing system and requires a top-floor machine room to install the drive and control equipment. Therefore, the complex structure of traditional lifting equipment occupies a large space and imposes certain building height requirements to accommodate the machine room installation.

[0003] For low-rise buildings or other special occasions with limited installation space, traditional lifting equipment that requires a top-floor machine room is inconvenient to install, and is also difficult to inspect and maintain. Utility Model Content

[0004] The purpose of this utility model is to provide a car lifting device driven by a motor at the bottom of the shaft, so as to solve the problems of inconvenient installation and difficult maintenance of traditional lifting equipment that requires a top-floor machine room.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a car lifting device driven by a motor at the bottom of the shaft, comprising:

[0006] The drive module includes a drive host, a lower guide wheel, an upper guide wheel, and a steel wire rope. The drive host is located on the bottom of the elevator shaft. The upper guide wheel and the lower guide wheel are respectively located at the upper and lower ends of the elevator shaft. One end of the steel wire rope is connected to the output end of the drive host, and the other end is fixedly installed on the elevator car. The steel wire rope passes around the lower guide wheel and the upper guide wheel from bottom to top.

[0007] The guide module includes a guide rail and a guide roller assembly. The guide rail is fixedly installed on the side wall of the elevator shaft. A mounting bracket is provided on one side of the elevator car. The guide roller assembly is fixedly installed on the mounting bracket and slidably connected to the guide rail.

[0008] Inspection doors are installed on the side wall of the elevator shaft.

[0009] As a further description of the above technical solution:

[0010] The drive host is a roll-type forced drive host.

[0011] As a further description of the above technical solution:

[0012] A buffer is also installed at the bottom of the elevator shaft.

[0013] As a further description of the above technical solution:

[0014] The elevator shaft is equipped with landing doors, which are hinged to the side wall of the elevator shaft.

[0015] As a further description of the above technical solution:

[0016] The door is equipped with a handle.

[0017] As a further description of the above technical solution:

[0018] The guide roller assembly includes an upper guide roller and a lower guide roller. The upper guide roller and the lower guide roller are respectively located on the upper and lower sides of the mounting frame, and the upper guide roller and the lower guide roller are respectively located on both sides of the guide rail.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. In this utility model, the drive host is set at the bottom of the shaft in a forced drive lifting device, and the control device is integrated at the landing door on the outside of the shaft, which saves building space, reduces building height requirements, eliminates the need for a top-floor machine room, and is particularly suitable for low-rise buildings or other special occasions with limited installation space.

[0021] 2. In this utility model, since the drive unit is located at the bottom of the shaft, the inspection door is installed on the side wall of the elevator shaft, which facilitates elevator maintenance personnel to carry out inspections, makes maintenance easier, reduces maintenance costs, and ensures the safe operation of the equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a side view structural diagram of a car lifting device driven by a motor at the bottom of the shaft.

[0024] Figure 2 This is a schematic diagram of a car lifting device driven by a motor at the bottom of the shaft.

[0025] Figure 3 This is a plan view of a car lifting device driven by a motor at the bottom of the shaft.

[0026] Figure 4 This is a schematic diagram of the installation of guide roller assembly in a car lifting device driven by a motor at the bottom of the shaft.

[0027] Legend:

[0028] 1. Drive module; 11. Drive host; 12. Lower guide wheel; 13. Upper guide wheel; 14. Steel wire rope; 2. Guide rail; 3. Guide roller assembly; 31. Upper guide roller; 32. Lower guide roller; 4. Inspection door; 8. Elevator car; 81. Mounting bracket; 9. Elevator shaft; 91. Landing door; 911. Handle. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] Please see Figure 1-4 This utility model provides a technical solution: a car lifting device driven by a motor at the bottom of the shaft, comprising:

[0032] The drive module 1 includes a drive host 11, a lower guide wheel 12, an upper guide wheel 13, and a steel wire rope 14. The drive host 11 is located on the bottom surface of the elevator shaft 9. The upper guide wheel 13 and the lower guide wheel 12 are respectively located at the upper and lower ends of the elevator shaft 9. One end of the steel wire rope 14 is connected to the output end of the drive host 11, and the other end is fixedly installed on the elevator car 8. The steel wire rope 14 passes around the lower guide wheel 12 and the upper guide wheel 13 from bottom to top.

[0033] The guide module includes a guide rail 2 and a guide roller assembly 3. The guide rail 2 is fixedly installed on the side wall of the elevator shaft 9. A mounting bracket 81 is provided on one side of the elevator car 8. The guide roller assembly 3 is fixedly installed on the mounting bracket 81 and is slidably connected to the guide rail 2.

[0034] Inspection door 4 is located on the side wall of elevator shaft 9.

[0035] The drive unit 11 is a drum-type forced drive unit. By winding and unwinding the steel wire rope 14, the drive unit 11 directly pulls the elevator car 8 to move up and down.

[0036] Working principle: The drive unit 11 is a forced-drive lifting device located at the bottom of the shaft, and the control equipment is integrated at the landing door on the outside of the shaft. This saves building space, reduces building height requirements, and eliminates the need for a top-floor machine room, making it particularly suitable for low-rise buildings or other special occasions with limited installation space. Because the drive unit 11 is located at the bottom of the shaft, an inspection door 4 is provided on the side wall of the elevator shaft 9, facilitating maintenance by elevator maintenance personnel, simplifying maintenance, reducing maintenance costs, and ensuring safe operation of the equipment.

[0037] The control equipment specifically includes a control cabinet, an operation panel, and safety protection devices. The control equipment uses existing technology, the difference being that the control cabinet is installed next to the outer door of the shaft.

[0038] Example 2

[0039] Based on the above embodiments, this embodiment further improves upon the following technical solution: a buffer is also provided at the bottom of the elevator shaft 9.

[0040] The buffer can absorb the impact energy when the elevator falls out of control, protecting the elevator car and the drive unit 11 at the bottom of the shaft.

[0041] In addition, the lifting equipment in this application can be equipped with speed governors and safety brakes just like conventional lifting equipment, so that braking protection can be reliably triggered when the elevator overspeeds.

[0042] Example 3

[0043] Based on the above embodiments, this embodiment further improves upon the following technical solution: a landing door 91 is provided on the elevator shaft 9, the landing door 91 is hinged to the side wall of the elevator shaft 9, and a handle 911 is provided on the landing door 91.

[0044] The landing door 91 on the elevator shaft 9 is unlocked from the inside or outside by the handle 911 and then rotated to open. The installation method of the landing door 91 is simple and, unlike the swing landing door, it has low requirements for installation space.

[0045] Example 4

[0046] Based on the above embodiments, this embodiment further improves upon the following technical solution: the guide roller assembly 3 includes an upper guide roller 31 and a lower guide roller 32, which are respectively disposed on the upper and lower sides of the mounting frame 81, and are respectively disposed on both sides of the guide rail 2.

[0047] The elevator car 8 moves up and down along the guide rail 2 via the upper guide roller 31 and the lower guide roller 32. The upper guide roller 31 and the lower guide roller 32 on the upper and lower sides of the elevator car 8 are respectively set on both sides of the guide rail 2. This can reduce the number of rollers while effectively preventing the elevator car 8 from leaving the guide rail 2 and improving the load-bearing capacity of the elevator car 8.

[0048] 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. A car lifting device driven by a motor at the bottom of the shaft, characterized in that, include: The drive module includes a drive host, a lower guide wheel, an upper guide wheel, and a steel wire rope. The drive host is located on the bottom surface of the elevator shaft. The upper guide wheel and the lower guide wheel are respectively located at the upper and lower ends of the elevator shaft. One end of the steel wire rope is connected to the output end of the drive host, and the other end is fixedly installed on the elevator car. The steel wire rope passes around the lower guide wheel and the upper guide wheel from bottom to top. The guide module includes a guide rail and a guide roller assembly. The guide rail is fixedly installed on the side wall of the elevator shaft. A mounting bracket is provided on one side of the elevator car. The guide roller assembly is fixedly installed on the mounting bracket and slidably connected to the guide rail. Inspection door, which is installed on the side wall of the elevator shaft.

2. The car lifting device driven by a motor at the bottom of the shaft according to claim 1, characterized in that, The drive host is a roll-type forced drive host.

3. A car lifting device driven by a motor at the bottom of the shaft according to claim 1, characterized in that, A buffer is also installed at the bottom of the elevator shaft.

4. A car lifting device driven by a motor at the bottom of the shaft according to claim 1, characterized in that, The elevator shaft is equipped with landing doors, which are hinged to the side wall of the elevator shaft.

5. A car lifting device driven by a motor at the bottom of the shaft according to claim 4, characterized in that, The door is equipped with a handle.

6. A car lifting device driven by a motor at the bottom of the shaft according to claim 1, characterized in that, The guide roller assembly includes an upper guide roller and a lower guide roller. The upper guide roller and the lower guide roller are respectively disposed on the upper and lower sides of the mounting frame, and the upper guide roller and the lower guide roller are respectively disposed on both sides of the guide rail.

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