Top hoisting tool for elevator without machine room

Abstract

The invention relates to a machine-room-less elevator top hoisting tool, which comprises a top hoisting platform, a lifting device and a lifting device, the carrying platform is arranged on the elevator guide rail and can move along the elevator guide rail, and the carrying platform is used for carrying elevator components needing to be hoisted; and the lifting device is mounted at the hanging point and is connected with the carrying platform so as to lift the carrying platform. The lifting tool for the top of the elevator without the machine room has the following obvious beneficial effects that (1) the requirement of the elevator on a building is reduced, and particularly, under the condition that the elevator adopts a transparent shaft design, the shaft structure is beautified; and (2) by using the carrying platform, hoisting of the traction machine and matched components is completed under the condition that the top space of the elevator shaft is narrow, the requirement for the top operation space of the elevator shaft is lowered, and the possibility is provided for further compactness of the top structure of the elevator without the machine room.

Description

Technical Field

[0001] The present invention relates to the field of elevators, and particularly to a hoisting tool for the top of a machine-roomless elevator. Background Art

[0002] With the continuous in-depth development of elevator technology, especially the expansion of the household elevator market, the market has put forward higher requirements for the compactness of elevators. In the existing design of machine-roomless elevators, in order to ensure the installation and maintenance of top components, an operating space for hoisting components such as traction machines must be reserved at the top of the elevator hoistway.

[0003] The above situation makes it difficult for the existing design scheme of machine-roomless elevators to further reduce the size in the height direction, resulting in the top height of the elevator hoistway often being greater than the ceiling height of the top floor landing of the elevator, which increases the complexity and limitations of building design. At the same time, in order to ensure the installation and maintenance work of the elevator, hanging points for hoisting are usually required to be specially set at the top of the elevator hoistway, which also has an adverse impact on building design. Especially when the elevator adopts a transparent hoistway design, the hooks at the top have a considerable adverse impact on the aesthetics of the structure.

[0004] Therefore, there is a need for further improvement in the existing design scheme of machine-roomless elevators.

[0005] The information disclosed in the background part of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a hoisting tool for the top of a machine-roomless elevator, which reduces the requirements of the elevator for the building, especially in the case where the elevator adopts a transparent hoistway design, beautifies the hoistway structure, and provides the possibility for further compacting the top structure of the machine-roomless elevator.

[0007] To solve the above problems, the present invention provides a hoisting tool for the top of a machine-roomless elevator, which includes: a top hoisting platform installed at the top of the elevator guide rail and having hanging points; a carrying platform arranged on the elevator guide rail and capable of moving along the elevator guide rail, and the carrying platform is used for carrying elevator components to be hoisted; and a lifting device installed at the hanging points and connected to the carrying platform to lift the carrying platform.

[0008] Preferably, the top hoisting platform includes: two cross beams arranged in parallel and extending in the left-right direction; two longitudinal beams, one of the two longitudinal beams has its two ends respectively connected to the first end or the second end of one cross beam, and the other of the two longitudinal beams has its two ends respectively connected to the middle of one cross beam to form a stable frame structure.

[0009] Preferably, a reinforcing member is further provided at the connection position of the cross beam and the longitudinal beam.

[0010] Preferably, the lifting device is a chain block.

[0011] Preferably, the elevator guide rail is located in the elevator hoistway and includes at least a first elevator guide rail, a second elevator guide rail, and a third elevator guide rail. Among them, the middle part of one of the two longitudinal beams is connected to the top of the first elevator guide rail, and the second elevator guide rail and the third elevator guide rail are located on the opposite side of the first elevator guide rail.

[0012] Preferably, the top lifting platform further includes: a car guide rail connecting member provided at the top of the first elevator guide rail, and the first elevator guide rail is connected to the longitudinal beam through the car guide rail connecting member; and two counterweight guide rail connecting members, one of the two counterweight guide rail connecting members is provided at the top of the second elevator guide rail, and the second elevator guide rail is connected to one of the two cross beams through one counterweight guide rail connecting member, and the other of the two counterweight guide rail connecting members is provided at the top of the third elevator guide rail, and the third elevator guide rail is connected to the other of the two cross beams through the other counterweight guide rail connecting member; wherein, a lifting hole is provided on the car guide rail connecting member and / or the counterweight guide rail connecting member.

[0013] Preferably, the longitudinal beam and the cross beam are connected through a connecting component.

[0014] Preferably, the car guide rail connecting member includes a horizontally extending cross plate and a vertical plate. The cross plate is connected to the top end of the elevator guide rail, and the vertical plate is connected to the side surface of the longitudinal beam, so that the top lifting platform is fixed to the elevator guide rail.

[0015] Preferably, the carrying platform includes: an elevator counterweight frame provided on the elevator track and capable of moving along the elevator track; a fixed base provided on the elevator counterweight frame, and the fixed base has a slide rail; and a bottom support assembly installed on the fixed base and capable of horizontally moving along the slide rail, and the bottom support assembly is used for installing the elevator components to be hoisted.

[0016] Preferably, the bottom support assembly includes a frame including a top plate and two side plates, and the elevator components to be hoisted are placed on the top plate; rollers rotatably installed on the two side plates through a wheel shaft, and the bottom of the rollers is installed in the slide rail and capable of horizontally rolling along the slide rail; and an anti-overturning member installed on the outer side plate of the frame and fixedly connected to the side plate.

[0017] The top lifting tool of the machine-roomless elevator of the present invention has the following obvious beneficial effects:

[0018] (1) By using the top hoisting platform, the required hoisting points for the installation and maintenance of the elevator are provided without the need for hoisting points at the top of the hoistway, reducing the requirements of the elevator for the building. Especially in the case where the elevator adopts a transparent hoistway design, the hoistway structure is beautified.

[0019] (2) By using the carrier platform, the hoisting of the traction machine and its supporting components is completed in the case of a narrow space at the top of the elevator hoistway, reducing the demand for the top operating space of the elevator hoistway and providing the possibility for further compacting the top structure of the machine-roomless elevator.

[0020] The methods and devices of the present invention have other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent embodiments, or will be described in detail in the accompanying drawings incorporated herein and the subsequent embodiments. These accompanying drawings and embodiments are jointly used to explain the specific principles of the present invention. Description of the Drawings

[0021] Figure 1 Schematic structural diagram of the top hoisting tool for a machine-roomless elevator according to an embodiment of the present invention;

[0022] Figure 2 Exploded perspective view of the top hoisting platform;

[0023] Figure 3 Exploded perspective view of the carrier platform;

[0024] Figure 4 Schematic diagram of the application scenario of the top hoisting tool for a machine-roomless elevator;

[0025] Figure 5A Schematic structural diagram of the bottom support assembly Figure 1 ;

[0026] Figure 5B Schematic structural diagram of the bottom support assembly Figure 2 ;

[0027] Figure 6 Schematic diagram of the cooperation between the bottom support assembly and the fixed base;

[0028] Figure 7 For Figure 6 Cross-sectional view taken at A - A in

[0029] Description of the Reference Numerals:

[0030] 100: Top hoisting platform 110: Cross beam

[0031] 120: Longitudinal beam 130: Car guide rail connector

[0032] 131: Horizontal plate 132: Vertical plate

[0033] 140: Counterweight guide rail connector 150: Connection assembly

[0034] 160: Reinforcement

[0035] 200: Carrier platform 210: Fixed base

[0036] 211: Slide rail 220: Bottom support assembly

[0037] 221: Frame 222: Roller

[0038] 223: Anti-overturning member 224: Top plate

[0039] 225: Side plate 230: Counterweight frame of elevator

[0040] 300: Lifting device 400: Elevator component

[0041] 501: Elevator guide rail 502: Elevator guide rail

[0042] 503: Elevator guide rail.

[0043] It should be understood that the drawings are not necessarily drawn to scale and instead present simplified representations of various features to illustrate the basic principles of the present invention. The specific design features disclosed herein (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific application and use environment.

[0044] In these figures, throughout the several views of the drawings, like reference numerals denote the same or equivalent parts of the present invention. Detailed Description of the Embodiments

[0045] The following will refer in detail to the various embodiments of the present invention, examples of which are shown in the drawings and described below. Although the present invention will be described in conjunction with the exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modifications, equivalent forms, and other embodiments that may be included within the spirit of the present invention and defined by the appended claims.

[0046] When a component is referred to as being "above" or "over" another component, the component may be in contact with the other component or there may be intervening components.

[0047] Figure 1 Structural schematic diagram of the hoisting tool at the top of the machine-roomless elevator according to the embodiment of the present invention; Figure 2 Exploded perspective view of the top hoisting platform; Figure 3 Exploded perspective view of the carrier platform;

[0048] Figure 4 Schematic diagram of the application scenario of the hoisting tool at the top of the machine - room - less elevator Figure 5A Structural schematic of the bottom - supporting component Figure 1 ; Figure 5B Structural schematic of the bottom - supporting component Figure 2 ; Figure 6 Cooperating schematic of the bottom - supporting component and the fixed base Figure 7 For Figure 6 Cross - sectional view at A - A in

[0049] The present invention is used for installing elevator components such as the traction machine, the lifting device 300, etc.

[0050] Generally, four elevator rails are provided in the elevator hoistway, namely two car rails and two counterweight rails. In Figure 1 , only three elevator rails 501, 502, 503 are schematically shown. Among them, the elevator rail 501 is a car rail, which is installed inside the elevator car and is used to support the operation of the car and ensure the smooth operation of the car (the other car rail is not schematically shown in the figure). The elevator rails 502 and 503 are both counterweight rails, which are installed in the elevator hoistway and are used to support the operation of the counterweight and ensure the smooth operation of the counterweight.

[0051] The following will describe the hoisting tool at the top of the machine - room - less elevator according to the embodiments of the present invention in conjunction with Figures 1 to 7 For illustration.

[0052] As Figure 1 shown, the hoisting tool at the top of the machine - room - less elevator according to the embodiments of the present invention includes: a top hoisting platform 100, a carrying platform 200, and a lifting device 300.

[0053] The top hoisting platform 100 is installed at the top of the elevator rail and has hanging points, which are used for hoisting elevator components such as the traction machine and the lifting device 300.

[0054] The carrying platform 200 is arranged on the elevator counterweight frame 230 and can move along the elevator rail. The carrying platform 200 is used for carrying the elevator components to be hoisted.

[0055] The lifting device 300 is installed at the hanging point and is connected to the carrying platform to lift the carrying platform.

[0056] The embodiments of the present invention have the following obvious beneficial effects:

[0057] (1) By using the top hoisting platform 100, the required hanging points for the installation and maintenance of the elevator are provided without the hanging points at the top of the hoistway, reducing the requirements of the elevator for the building. Especially in the case where the elevator adopts a transparent hoistway design, the hoistway structure is beautified.

[0058] (2) By using the carrier platform 200, the hoisting of the traction machine and its supporting components can be completed in the case of a narrow top space in the elevator shaft, reducing the requirement for the top operating space of the elevator shaft and providing the possibility for further compacting the top structure of the machine-room-less elevator.

[0059] Such as Figure 2 shown, the top hoisting platform 100 includes two cross beams 110, two longitudinal beams 120, a car guide rail connector 130, two counterweight guide rail connectors 140, a connecting component 150, and a reinforcing member 160.

[0060] The two cross beams 110 are arranged in parallel and extend in the left-right direction. One end of each of the two longitudinal beams 120 is connected to the first end of one cross beam 110, and one end of the other of the two longitudinal beams 120 is connected to the middle of one cross beam 110 to form a stable frame structure and provide hanging points at the top of the shaft for the elevator components 400 to be hoisted.

[0061] In Figure 1 , the longitudinal beams 120 of the frame structure are arranged on the right side and in the middle, forming an opening on one side (i.e., the left side in the figure) of the frame structure where the counterweight guide rails (i.e., elevator guide rails 502 and elevator guide rails 503) are located.

[0062] In an exemplary embodiment, as Figure 2 shown, the longitudinal beams 120 and the cross beams 110 are connected by a connecting component 150.

[0063] In an exemplary embodiment, as Figure 2 shown, a reinforcing member 160 is further provided at the connection position of the cross beam 110 and the longitudinal beam 120 to improve the strength of the connection point and optimize the local stress condition.

[0064] In an exemplary embodiment, the reinforcing member 160 is an L-shaped sheet metal part. Specifically, the reinforcing member 160 includes a vertical plate and a horizontal plate formed integrally. Among them, the horizontal plate is fixedly connected to the longitudinal beam 120, and the vertical plates of the two reinforcing members 160 are located outside the two cross beams 110, so that the vertical plates of the two reinforcing members 160 clamp the two cross beams 110. Even if the connecting component 150 loosens for various reasons, the longitudinal beam 120 can slide along the extension direction of the cross beam 110 (i.e., Figure 2 the left-right direction in

[0065] In an exemplary embodiment, the cross beam 110 and the longitudinal beam 120 are square steel pipes in cross section.

[0066] In an exemplary embodiment, a plurality of connection holes for connection and adjustment are provided on the cross beam 110 and the longitudinal beam 120. These connection holes can include two types of holes. One type of hole is for connecting the cross beam 110 and the longitudinal beam 120 to each other, and this type of hole is used in conjunction with bolts for connection. The other type of hole is for hoisting the traction machine to form a hanging point.

[0067] In an exemplary embodiment, the specifications, dimensions, and shapes of the cross beam 110 and the longitudinal beam 120 can be the same for use by exchanging positions with each other.

[0068] According to actual requirements, the cross beam 110 and the longitudinal beam 120 can be designed with different specifications and dimensions to adapt to different hoistway sizes.

[0069] As Figure 1 shown, there are three elevator guide rails 501, 502, and 503 in the elevator hoistway. Among them, the elevator guide rail 501 is located on the right side of the top hoisting platform 100, and the top of this elevator guide rail 501 is connected to the longitudinal beam 120. The elevator guide rails 502 and 503 are located on the left side of the top hoisting platform 100, and the elevator guide rail 502 is located on the front side of the elevator guide rail 503.

[0070] In an exemplary embodiment, as Figure 1 shown, the car guide rail connector 130 is fixed to the top of the elevator guide rail 501, and the elevator guide rail 501 is connected to the longitudinal beam 120 through the car guide rail connector 130. Among them, the car guide rail connector 130 includes a horizontally extending cross plate 131 and a vertical plate 132. The cross plate 131 is connected to the top end of the elevator guide rail 501, and the vertical plate is connected to the side surface of the longitudinal beam 120, so that the top hoisting platform 100 is fixed to the elevator guide rail 501.

[0071] In an exemplary embodiment, as Figure 1 shown, a counterweight guide rail connector 140 is fixed to the top of the elevator guide rail 502, and another counterweight guide rail connector 140 is fixed to the top of the elevator guide rail 503. One of the two cross beams 110 is connected to the elevator guide rail 502 through a counterweight guide rail connector 140, and the other of the two cross beams 110 is connected to the elevator guide rail 503 through another counterweight guide rail connector 140, so that the top hoisting platform 100 is fixed to the elevator guide rails 502 and 503.

[0072] The car guide rail connector 130 supports the longitudinal beam 120, and the counterweight guide rail connector 140 supports the cross beam 110.

[0073] In an exemplary embodiment, the car guide rail connector 130 can be a part of the elevator top floor components.

[0074] In an exemplary embodiment, a hoisting hole is provided on the car guide rail connector 130, and the hoisting hole can be used to hang the lifting device 300, and this hoisting hole also constitutes a hanging point.

[0075] In an exemplary embodiment, the counterweight guide rail connector 140 is part of the top floor components of the elevator.

[0076] In an exemplary embodiment, a hoisting hole is provided on the counterweight guide rail connector 140, and the hoisting hole can be used to hang the lifting device 300, and this hoisting hole also constitutes a hanging point.

[0077] In an exemplary embodiment, the connecting component 150 can be selected as a long bolt component.

[0078] As Figures 3 to 7 shown, the carrier platform 200 includes an elevator counterweight frame 230, a fixed base 210, and a bottom support assembly 220.

[0079] The elevator counterweight frame 230 is arranged on the elevator track and can move along the elevator track. Specifically, the elevator counterweight frame 230 is installed on the elevator guide rails 502, 503 and can move up and down along the elevator guide rails 502, 503. The elevator counterweight frame 230 is an existing device.

[0080] As Figure 4 shown, the fixed base 210 and the elevator counterweight frame 230 are firmly connected. Specifically, the fixed base 210 is connected to the elevator counterweight frame 230 by bolts. As Figure 3 shown, a slide rail 211 is provided on the upper surface of the fixed base 210.

[0081] The bottom support assembly 220 is installed on the fixed base 210 and can move horizontally along the slide rail 211. The bottom support assembly 220 is used to install the elevator component 400 to be hoisted.

[0082] The number of the bottom support assemblies 220 is four.

[0083] As Figure 5A and Figure 5B shown, the bottom support assembly 220 includes a frame 221, rollers 222, and anti-overturning members 223.

[0084] The frame 221 includes a top plate 224 and two side plates 225. The elevator component 400 is placed on the top plate 224.

[0085] As Figure 6 and Figure 7As shown, the roller 222 is rotatably mounted to two side plates 225 via a wheel axle. The bottom of the roller 222 is mounted within the slide rail 211 and can roll horizontally along the slide rail 211, enabling the elevator component 400 to be lifted, which is connected to the bottom support assembly 220, to move horizontally along the slide rail 211 provided on the fixed base 210 to adjust the installation position in the horizontal direction.

[0086] In the illustrated embodiment, four bottom support assemblies 220 are provided, but the number thereof can be adjusted according to circumstances, for example, it can be set to any number from 2 to 8.

[0087] As Figure 6 and Figure 7 As shown, the anti-overturning member 223 is connected to the bottom support assembly 220 by bolts to prevent the component from overturning during the hoisting process. The anti-overturning member 223 is mounted to the outer side plates of each frame and fixedly connected to the side plates. The bottom surface of the anti-overturning member 223 is spaced a small distance from the upper surface of the slide rail 211. In this way, it can neither hinder the movement of the bottom support assembly 220 nor prevent the overturning of the elevator component 400 during the movement. In the present embodiment, the anti-overturning member 223 is provided on the outer side of the frame. As an option, the anti-overturning member 223 can also be provided on both sides of the frame.

[0088] As Figure 4 As shown, the elevator component 400 to be lifted is fixed to the bottom support assembly 220. The anti-overturning member 223 is mounted on the bottom support assembly 220 to prevent the lifted elevator component 400 from overturning during the hoisting process.

[0089] The lifting device 300 can be a manual hoist or other device.

[0090] During hoisting, the manual hoist realizes the lifting of the carrier platform 200 and the elevator component 400 to be lifted by lifting the elevator counterweight frame 230.

[0091] By using the top hoisting platform 100, the present invention provides the required hanging points for the installation and maintenance of the elevator without the hanging points at the top of the hoistway, reducing the requirements of the elevator for the building. Especially in the case where the elevator adopts a transparent hoistway design, the hoistway structure is beautified. On the other hand, by using the carrier platform 200, the present invention completes the hoisting of the traction machine and its supporting components in the case of a narrow space at the top of the elevator hoistway, reducing the requirement for the top operating space of the elevator hoistway and providing the possibility for further compacting the top structure of the machine-roomless elevator.

[0092] For purposes of explanation and precise definition of the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper", "lower", "upward", "downward", "front", "rear", "behind", "inner side", "outer side", "inward", "outward", "interior", "exterior", "interior of", "exterior of", "forward", "backward" are used to describe the features of the exemplary specific embodiments with reference to the positions of these features shown in the accompanying drawings.

[0093] The foregoing description of the specific exemplary embodiments of the invention has been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive nor to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the particular principles of the invention and its practical application to enable others skilled in the art to realize and utilize the invention in its various exemplary embodiments and its various alternative forms and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An overhead lifting tool for a machine - room - less elevator, comprising: An overhead lifting platform, which is installed at the top of the elevator guide rail and has hanging points; A carrier platform, which is arranged on the elevator guide rail and can move along the elevator guide rail, and the carrier platform is used to carry elevator components to be lifted; And A lifting device, which is installed at the hanging point and is connected to the carrier platform to lift the carrier platform.

2. The hoisting tool for the top of the machine-roomless elevator according to claim 1, wherein, The overhead lifting platform includes: Two cross - beams, which are arranged in parallel and extend in the left - right direction; Two longitudinal beams, one of the two longitudinal beams has its two ends respectively connected to the first end or the second end of one cross - beam, and the other of the two longitudinal beams has its two ends respectively connected to the middle part of one cross - beam to form a stable frame structure.

3. The top hoisting tool for a machine-room-less elevator according to claim 2, wherein, Reinforcing members are further arranged at the connection positions of the cross - beams and the longitudinal beams.

4. The hoisting tool for the top of the machine - room - less elevator according to claim 3, wherein, The lifting device is a chain block.

5. The overhead lifting tool for a machine - room - less elevator according to claim 2, wherein, The elevator guide rail is located in the elevator shaft and at least includes a first elevator guide rail, a second elevator guide rail and a third elevator guide rail. Among them, the middle part of one of the two longitudinal beams is connected to the top of the first elevator guide rail, and the second elevator guide rail and the third elevator guide rail are located on the opposite side of the first elevator guide rail.

6. The hoisting tool for the top of the machine-roomless elevator according to claim 5, wherein, The overhead lifting platform further includes: A car guide rail connecting member, which is arranged at the top of the first elevator guide rail, and the first elevator guide rail is connected to the longitudinal beam through the car guide rail connecting member; and Two counterweight guide rail connecting members, one of the two counterweight guide rail connecting members is arranged at the top of the second elevator guide rail, and the second elevator guide rail is connected to one of the two cross - beams through one counterweight guide rail connecting member, and the other of the two counterweight guide rail connecting members is arranged at the top of the third elevator guide rail, and the third elevator guide rail is connected to the other of the two cross - beams through the other counterweight guide rail connecting member; Among them, hoisting holes are provided on the car guide rail connecting member and / or the counterweight guide rail connecting member.

7. The hoisting tool for the top of the machine - room - less elevator according to claim 6, wherein, The longitudinal beam and the cross - beam are connected through a connecting component.

8. The hoisting tool for the top of the machine-room-less elevator according to claim 7, wherein, The car guide rail connecting member includes a horizontally extending cross - plate and a vertical plate. The cross - plate is connected to the top end of the elevator guide rail, and the vertical plate is connected to the side surface of the longitudinal beam, so that the overhead lifting platform is fixed to the elevator guide rail.

9. The top hoisting tool for a machine-room-less elevator according to claim 1, wherein, The carrier platform includes: An elevator counterweight frame, which is arranged on the elevator track and can move along the elevator track; A fixed base, which is arranged on the elevator counterweight frame, and the fixed base has a slide rail; and A bottom - supporting component, which is installed on the fixed base and can move horizontally along the slide rail, and the bottom - supporting component is used to install elevator components to be lifted.

10. The top hoisting tool for a machine-roomless elevator according to claim 9, wherein, The bottom - supporting component includes: A frame, which includes a top plate and two side plates, and the elevator components to be lifted are placed on the top plate; Rollers, which are rotatably installed on the two side plates through axles, and the bottoms of the rollers are installed in the slide rail and can roll horizontally along the slide rail; and Anti - tipping members, which are installed on the outer side plates of the frame and are fixedly connected to the side plates.

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