A machine room-less car frame structure

Abstract

The present invention provides a machine room-less car frame structure, belonging to the technical field of elevator car frames. A machine room-less car frame structure comprises an elevator bracket and a guide rail arranged in a hoistway wall, wherein a straight beam extending in a vertical direction is connected to the elevator bracket, each of the straight beams comprises at least two straight beam monomers, and a receiving space for receiving the guide rail is provided between the two straight beam monomers, and a guide shoe for sliding on the guide rail is connected to the elevator bracket. The guide rail extends into the receiving space, reducing the distance between the two guide rails, so that the installation distance of the guide rail is closer to the car, solving the problem of narrow hoistway width space.

Description

Technical Field

[0001] The invention relates to the technical field of elevator car frames, and in particular to a machine room-less car frame structure. Background Art

[0002] As a means of transportation, elevators have become one of the indispensable equipment in daily life. They are widely used in shopping malls, high-rise office buildings, etc. Take the machine room-less elevator as an example. The machine room-less elevator refers to an elevator that does not require a building to provide a closed special machine room for installing elevator drive host, control cabinet, speed limiter and other equipment. In order to save space, the control cabinet, host, speed limiter and other equipment that were previously installed in the machine room above the shaft are installed in the shaft instead, and the dedicated machine room setting is cancelled, which effectively improves the utilization rate of the building area and reduces the construction cost. Among the application equipment of the machine room-less elevator, the car frame is an indispensable component of the machine room-less elevator. The car frame is generally composed of vertical beams, upper beams and lower beams. However, as the machine room-less elevator is used more and more, the shortcomings of the car frame structure of the machine room-less elevator are gradually revealed. The traditional vertical beam structure is not conducive to use in a narrow shaft, and accidents are prone to occur when it is used in a small shaft. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a machine room-less car frame structure, in which a straight beam is installed on the car frame and the guide rail is installed closer to the car, thereby solving the problem of narrow hoistway width space.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A machine room-less car frame structure comprises an elevator support and a guide rail arranged in a shaft wall, wherein a straight beam extending in a vertical direction is connected to the elevator support, each of the straight beams comprises at least two straight beam monomers, and a receiving space for receiving the guide rail is contained between two straight beam monomers, and a guide shoe for sliding on the guide rail is connected to the elevator support.

[0006] The elevator support constitutes the basic framework of the entire elevator, and serves as a carrier and support for the car. The elevator support rises and falls in the shaft wall, and the shaft wall is provided with the guide rail extending vertically. The car and the elevator support rise and fall and slide on the guide rail by means of guide shoes. There are at least two guide rails, which are arranged on two sides of the shaft wall. Similarly, there are at least two straight beams, one on the left and one on the right, which are arranged on the outer surface of the side wall of the elevator support. As a space optimization design, each of the straight beams includes at least two straight beam monomers, and the straight beam monomers also extend in the vertical direction, parallel to the guide rails, and two adjacent straight beam monomers include a section of the accommodation space, and the guide rail partially extends into the accommodation space, which is conducive to space optimization and solves the problem of applicability in narrow shafts.

[0007] As a preferred embodiment of the present invention, each of the straight beam monomers has a bending portion.

[0008] The straight beam monomer is in the form of a flat plate. Directly adopting the flat plate has low strength, and bending the flat plate will enhance the strength of the flat plate.

[0009] As a preferred embodiment of the present invention, each of the straight beam monomers is provided with a notch for providing space for bending the straight beam monomer.

[0010] In actual operation, fixing parts such as bolts are often used to bend the straight beam monomer, but the bolts need space to be driven in. In the present technical solution, a notch is provided on the straight beam monomer, and the notch extends in the vertical direction. Since the bending process is the bending of the entire length of the entire plate, the notch can run through the entire straight beam monomer.

[0011] As a preferred embodiment of the present invention, the straight beams are distributed on the sides of the elevator car, and the straight beam monomers of each straight beam are distributed on both ends of the side of the elevator car.

[0012] The car frame is the load-bearing structure of the car. The straight beam monomer is perpendicular to and fixedly connected to the upper beam of the car frame and the car bottom, and is distributed at both ends of the side of the car, which is beneficial to the balance of the entire car frame.

[0013] As a preferred embodiment of the present invention, the guide rail on one side extends into the accommodating space by 40-50 mm.

[0014] The distance between the two guide rails is the guide rail gauge. The general guide rail gauge formula for elevators is: elevator guide rail gauge = car inner diameter + 180mm. The single-side guide rail extends 40~50mm into the accommodation space, and the guide rail is closer to the car in the accommodation space, and the guide rail gauge is reduced by 90~100mm.

[0015] As a preferred embodiment of the present invention, the elevator support comprises an upper beam, a straight beam and a lower beam bracket, and the lower beam bracket is fixed to the car bottom and connected to the straight beam.

[0016] The lower beam bracket is directly fixed to the car bottom, and the design without lower beam structure saves space at the bottom of the shaft and saves costs.

[0017] As a preferred embodiment of the present invention, two car top wheels for guiding the wire rope are installed in the middle position of the upper beam.

[0018] The middle position refers to the position in the height direction of the upper beam. The wire rope passes around the car top wheel, and under the action of the traction machine, the car moves up and down along the guide rail.

[0019] As a preferred embodiment of the present invention, the guide shoe is hidden inside the upper beam, and its height is not higher than the height of the upper beam, and the guide shoe oiling cup is not higher than the car top wheel protective cover.

[0020] The installation of the guide shoe and the guide shoe oiling cup and their height saves space on the top of the upper beam.

[0021] As a preferred embodiment of the present invention, the safety latch is installed inside the upper beam.

[0022] The safety latch is installed inside the upper beam, saving space on the top of the upper beam.

[0023] The present invention adopts a four-beam structure, and there is a accommodating space for the single straight beam in each straight beam. The guide rail is installed closer to the car, and the guide rail spacing is reduced, which is suitable for the situation where the shaft width and space are relatively narrow; the lower beam bracket replaces the lower beam to fix to the car bottom and is connected to the straight beam, which greatly reduces the lower space and is applicable when the pit is shallow; the car top wheel is installed in the middle position of the upper beam, the guide shoe is hidden inside the upper beam, the height of the guide shoe is not higher than the height of the upper beam, the height of the guide shoe oiling cup is not higher than the height of the car top wheel protective cover, and the safety pin is installed inside the upper beam. The installation position of these upper beam components effectively saves the space at the top height. According to the new technical solution provided by the applicant, the problem that the machine room-less elevator cannot operate normally when the shaft width is narrow, the top space is small, and the pit depth is shallow is effectively solved, and the shaft utilization rate is improved. The application of the lower beam-free structure greatly saves the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the top view structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0026] Figure 3 It is a side view structural schematic diagram of the present invention.

[0027] 1 Lower beam bracket

[0028] 2 Straight beam

[0029] 3. Beam

[0030] 4. Top wheel

[0031] 5 Safety latch

[0032] 6 Guide Shoes

[0033] 7 Guide Rail

[0034] 8 Guide shoe refueling cup

[0035] 9 Protective cover

[0036] 21 Straight beam single body

[0037] 22 Accommodation space. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0040] like Figure 1 As shown, a machine room-less car frame structure includes an elevator bracket and a guide rail 7 arranged in the hoistway wall, the elevator bracket is connected to a straight beam 2 extending in the vertical direction, each straight beam 2 includes at least two straight beam monomers 21, and there is a receiving space for receiving the guide rail 7 between the two straight beam monomers 21, and the guide rail on one side extends into the receiving space by 40-50 mm. The elevator bracket is connected to a guide shoe 8 for sliding on the guide rail 7.

[0041] The elevator bracket constitutes the basic framework of the entire elevator, serving as the carrier and support of the car. The elevator bracket rises and falls in the shaft wall, and the shaft wall is provided with the vertically extending guide rail 7. The car and the elevator bracket rise and fall and slide on the guide rail 7 by means of the guide shoe 8. There are at least two guide rails 7, which are arranged on the two sides of the shaft wall. Similarly, there are at least two straight beams 2, one on the left and one on the right, which are arranged on the outer surface of the side wall of the elevator bracket. As a space optimization design, each of the straight beams 2 includes at least two straight beam monomers 21, which also extend in the vertical direction and are parallel to the guide rail 7, and two adjacent straight beam monomers include a section of the accommodation space. When the present invention is installed, the guide rail 7 on one side partially extends into the accommodation space by 40~50mm, so that the distance between the guide rails 7 is reduced by 80~100mm, which is conducive to space optimization and solves the problem of applicability in narrow shafts.

[0042] Each of the straight beam monomers 21 is bent, and each of the straight beam monomers 21 has a notch that runs through the entire straight beam 2 in the vertical direction away from the upper beam. The straight beams 2 are distributed on the side of the elevator car, and the straight beam monomers 21 of each straight beam are distributed at both ends of the side of the elevator car.

[0043] The material shape of the straight beam monomer 21 is a flat plate, which has low strength. In order to strengthen the strength of the straight beam monomer 21, the flat plate is bent, and bending the flat plate will enhance the strength of the flat plate. The straight beam monomer 21 has a gap that runs through the entire straight beam monomer in the vertical direction for bending the straight beam 2. The car frame is the load-bearing structure of the car. The straight beam monomer 21 is perpendicular to and fixedly connected to the upper beam 3 of the car frame and the car bottom, and is distributed at both ends of the side of the car, which is conducive to the balance of the entire car frame.

[0044] like Figure 2 Figure 3 As shown, a machine room-less elevator structure, the elevator support comprises an upper beam 3, a straight beam 2 and a lower beam bracket 1, and the lower beam bracket 1 is fixed to the car bottom and connected to the straight beam.

[0045] When the present invention is installed and used, the straight beam monomer 21 is vertically fixedly connected with the upper beam 3 and the lower beam bracket 1 fixed to the bottom of the car, and a structure without a lower beam is adopted, which greatly reduces the bottom space. Preferably, two car top wheels 4 for guiding the wire rope and two car top wheel protective covers 9 for protecting the car top wheels 4 are installed in the middle position in the width direction of the upper beam 3, so that the car top wheels 4 and the car top wheel protective covers share the top space with the upper beam 3, reducing the use of the top space. Preferably, the guide shoe 7, the guide shoe oiling cup 8 and the safety pin 5 are installed inside the upper beam 3, the guide shoe 7 is distributed at both ends of the upper beam 3, and its height is not higher than the height of the upper beam 3, the guide shoe oiling cup 8 is installed at a position close to the guide shoe 7, distributed at both ends of the upper beam 3, and its height does not exceed the height of the car top wheel protective cover 9, and the safety pin 5 is installed on the left side of the upper beam 3, the above-mentioned effective use of the upper beam space reduces the use of the top space.

Claims

1. A machine room-less car frame structure, comprising an elevator support and a guide rail (7) arranged in a hoistway wall, characterized in that: A straight beam (2) extending in a vertical direction is connected to the elevator bracket, each of the straight beams (2) comprises at least two straight beam monomers (21), a receiving space (22) for receiving the guide rail (7) is contained between the two straight beam monomers (21), and a guide shoe (6) for sliding on the guide rail (7) is connected to the elevator bracket; The elevator support comprises an upper beam (3), a straight beam (2) and a lower beam bracket (1), wherein the lower beam bracket (1) is fixed to the car bottom and connected to the straight beam (2); Two car top wheels (4) for guiding the steel wire rope are installed in the middle of the upper beam (3); The guide shoe (6) is hidden inside the upper beam (3), and its height is no higher than the height of the upper beam (3); It also includes a guide shoe oiling cup (8), wherein the guide shoe oiling cup (8) does not protrude above the top wheel protection cover (9); It also includes a safety latch (5), which is installed inside the upper beam (3).

2. A machine room-less car frame structure according to claim 1, characterized in that: Each of the straight beam monomers (21) has a bent portion.

3. A machine room-less car frame structure according to claim 2, characterized in that: Each of the straight beam monomers (21) is provided with a notch for providing space for the straight beam monomer (21) to be bent.

4. The machine room-less car frame structure according to claim 1, characterized in that: The straight beams (2) are distributed on the side of the elevator car, and the straight beam monomers (21) of each straight beam (2) are distributed on both ends of the side of the elevator car.

5. The machine room-less car frame structure according to claim 1, characterized in that: The guide rail (7) on one side extends into the accommodating space (22) by 40 to 50 mm.

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