An ultra-low headroom and pit elevator

Abstract

The embodiment of the present application discloses an elevator with ultra-low roof and pit, which comprises a shaft and a car arranged in the shaft; the car comprises a car bottom, a vertical beam, side plates, a car roof and a car door; the side plates are arranged on the left and right edges and the rear edge of the upper surface of the car bottom; the car door is arranged on the front edge of the upper surface of the car bottom; and the car roof is arranged on the top of the side plates; the car bottom comprises a bottom plate cross beam and a bottom plate side beam; the end portions of the bottom plate cross beam and the bottom plate side beam are connected to each other; the connecting portions of the bottom plate cross beam and the bottom plate side beam are connected to the vertical beam through a connecting plate; the bottom of the car bottom is provided with an anti-twist plate; the anti-twist plate covers the lower end of the vertical beam and the connecting portions of the bottom plate cross beam and the bottom plate side beam; the lower surface of the anti-twist plate is provided with a safety clamp; and the safety clamp is arranged in cooperation with a guide rail in the shaft. By using the present application, the space occupation of the car bottom can be reduced, and the required pit height can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to an elevator, in particular to an elevator with ultra-low top floor and pit. BACKGROUND

[0002] With the improvement of people's living standards, more and more buildings are equipped with or installed with elevators. Due to the limitation of the top floor of some buildings, the height of the top floor is relatively low. In order to design an elevator that meets the acceptance requirements of national standards, the height of the elevator car is also reduced. The reduction of the height of the car will lead to the reduction of its carrying capacity, affecting the carrying performance of the elevator.

[0003] In addition, the existing car is equipped with a safety gear. When the car falls due to failure, the safety gear can be locked with the guide rail, so that the car is decelerated until it stops. During the locking process of the safety gear, a large torsion force is generated on the car, which often causes the car to be twisted to some extent, so that the car cannot be put into use again in a short time after the failure is eliminated. In order to solve the above problems, some existing elevators are provided with a cross beam at the bottom of the car. The cross beam connects the safety gears on both sides and is connected with the bottom of the car. Through the above design, the resistance generated when one side of the safety gear is triggered can be evenly transmitted to the bottom of the car, preventing the car from being twisted due to excessive force on the four corners. For lower buildings such as self-built houses, some buildings cannot expand the shaft downward, resulting in a low height of the pit at the bottom of the shaft. The cross beam provided at the bottom of the existing car occupies a lot of space at the bottom of the pit, so that the depth of the pit cannot meet the requirements of safe operation of the elevator. SUMMARY

[0004] The present application provides an elevator with ultra-low top floor and pit, which can reduce the occupation of the car bottom space and reduce the required pit height.

[0005] In order to solve the above technical problems, the present application provides an elevator with ultra-low top floor and pit, which includes a shaft and a car arranged in the shaft. The car includes a car bottom, a vertical beam, a side plate, a car top and a car door. The side plate is arranged on the left and right edges and the rear edge of the upper surface of the car bottom. The car door is arranged on the front edge of the upper surface of the car bottom. The car top is arranged on the top of the side plate. The car bottom includes a bottom plate cross beam and a bottom plate side beam. The end portions of the bottom plate cross beam and the bottom plate side beam are connected with each other. The connection portions of the bottom plate cross beam and the bottom plate side beam are connected with the vertical beam through a connecting plate. The lower end of the vertical beam is flush with the bottom surface of the bottom plate cross beam and the bottom plate side beam. A torsion prevention plate is arranged at the bottom of the car bottom. The torsion prevention plate covers the lower end of the vertical beam and the connection portions of the bottom plate cross beam and the bottom plate side beam. The lower surface of the torsion prevention plate is provided with a safety gear. The safety gear is arranged in cooperation with the guide rail in the shaft.

[0006] As an improvement of the above-mentioned scheme, the lower surface of the safety clamp is provided with a lower guide shoe capable of sliding relative to the guide rail.

[0007] As an improvement of the above-mentioned scheme, the bottom plate cross beam and the bottom plate side beam are both made of channel steel, and the bottom plate cross beam has a channel bottom extension section extending into the channel wall between the ends of the bottom plate side beam.

[0008] As an improvement of the above-mentioned scheme, the bottom plate cross beam and the bottom plate side beam are provided with a car bottom plate.

[0009] As an improvement of the above-mentioned scheme, the upper surface of the end of the bottom plate side beam is provided with a car door support, and the car door support is provided with a car door slide rail, and the car door is arranged on the car door slide rail and capable of sliding relative to the car door slide rail.

[0010] As an improvement of the above-mentioned scheme, the top of the vertical beam is connected with an upper beam, and the upper beam is provided with a car top wheel on one side, and the car top wheel is used for cooperating with a steel wire rope to pull the car.

[0011] As an improvement of the above-mentioned scheme, the car top wheel comprises a pulley, a top wheel seat, a mounting plate, an upper reinforcing plate, a guide column, a buffer spring and a lower reinforcing plate; the pulley is arranged on the upper portion of the top wheel seat, the guide column is arranged on the bottom portion of the top wheel seat, the guide column is sequentially sleeved with the mounting plate, the upper reinforcing plate, the buffer spring and the lower reinforcing plate from top to bottom, the mounting plate is fixedly connected with the upper beam, and the end of the guide column is provided with an adjusting bolt.

[0012] As an improvement of the above-mentioned scheme, the upper beam is provided with upper guide shoes on both sides, and the upper guide shoes are capable of sliding relative to the guide rail.

[0013] The embodiment of the present application has the following beneficial effects:

[0014] The lower end of the vertical beam and the connection between the bottom plate cross beam and the bottom plate side beam are provided with an anti-twist plate, the lower surface of the anti-twist plate is provided with a safety clamp, and the safety clamp is arranged in cooperation with the guide rail in the shaft. The stress concentration part of the car bottom is reinforced by the anti-twist plate, and the safety clamp is installed, so that the pushing force generated by the safety clamp is dispersed, and the car is prevented from being locally twisted due to excessive force. The thickness of the anti-twist plate is small, which can reduce the occupation of the car bottom space and reduce the required pit height.

[0015] In addition, the mounting plate is fixedly connected with the upper beam, the upper reinforcing plate, the guide column, the buffer spring and the lower reinforcing plate are arranged below one side of the upper beam, which not only plays the traction and buffering functions of the car top wheel, but also reduces the space occupation of the car top wheel on the top of the car, reduces the required top layer height, and meets the needs of building elevators installed in low top layer height buildings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1is a structural schematic view of an elevator with an ultra-low top layer and a pit according to the present application;

[0017] Figure 2 is Figure 1 an enlarged view of part A of

[0018] Figure 3 is Figure 1 an enlarged view of part B of

[0019] Figure 4 is Figure 1 an enlarged view of part C of DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be described in further detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer directions appearing or about to appear in the present application are based on the drawings of the present application, and are not specific limitations on the present application.

[0021] As Figure 1 and Figure 2 shown, the present application provides an elevator with an ultra-low top layer and a pit, comprising a shaft 100 and a car 200 arranged in the shaft 100; the car 200 comprises a car bottom 1, a vertical beam 2, side plates 3, a car top 4 and a car door 5, the side plates 3 are arranged on the left and right edges and the back edge of the upper surface of the car bottom 1, the car door 5 is arranged on the front edge of the upper surface of the car bottom 1, and the car top 4 is arranged on the top of the side plates 3; the car bottom 1 comprises a bottom plate cross beam 11 and a bottom plate side beam 12, the end portions of the bottom plate cross beam 11 and the bottom plate side beam 12 are connected to each other, and the connection portions of the bottom plate cross beam 11 and the bottom plate side beam 12 are connected to the vertical beam 2 through a connecting plate 6; the lower end of the vertical beam 2 is flush with the bottom surface of the bottom plate cross beam 11 and the bottom plate side beam 12; the bottom of the car bottom 1 is provided with an anti-twist plate 7, the anti-twist plate 7 covers the lower end of the vertical beam 2 and the connection portions of the bottom plate cross beam 11 and the bottom plate side beam 12, and the lower surface of the anti-twist plate 7 is provided with a safety clamp 8, and the safety clamp 8 is arranged in cooperation with a guide rail 9 in the shaft 100.

[0022] By the above scheme, the lower end of the vertical beam 2 and the connection portions of the bottom plate cross beam 11 and the bottom plate side beam 12 are provided with the anti-twist plate 7, the lower surface of the anti-twist plate 7 is provided with the safety clamp 8, and the safety clamp 8 is arranged in cooperation with the guide rail 101 in the shaft 100. The stress concentration parts of the car bottom 1 are reinforced by the anti-twist plate 7, and then the safety clamp 8 is installed, so that the pushing force generated by the safety clamp 8 can be dispersed, and the car 200 is prevented from being locally twisted due to excessive force. The thickness of the anti-twist plate 7 is small, which can reduce the occupation of the space of the car bottom 1 and reduce the required pit height.

[0023] The lower surface of the safety clamp 8 is provided with a lower guide shoe 13 which can slide relative to the guide rail 101. It should be noted that the lower guide shoe 13 is used for guiding the car 200 during operation to ensure smooth operation of the car 200.

[0024] Preferably, in order to increase the carrying capacity and torsional strength of the car bottom 1 under the condition of minimum thickness, the bottom plate cross beam 11 and the bottom plate side beam 12 are both made of channel steel, the bottom plate cross beam 11 has a channel bottom extension section 111 which extends into the channel wall 121 between the ends of the bottom plate side beam 12. The bottom plate cross beam 11 and the bottom plate side beam 12 are fixed by welding. The car bottom plate 9 is arranged on the bottom plate cross beam 11 and the bottom plate side beam 12.

[0025] Preferably, the upper surface of the end of the bottom plate side beam 12 is provided with a car door support 51, the car door support 51 is provided with a car door sliding rail 52, the car door 5 is arranged on the car door sliding rail 52 and can slide relative to the car door sliding rail 52.

[0026] It should be noted that by arranging the car door support 51 on the bottom plate side beam 12, the car bottom plate 9 does not need to be provided with components for connecting the car door sliding rail 52, thereby compressing the thickness of the car bottom 1 as a whole and reducing the requirement for the minimum pit height.

[0027] On the other hand, in combination with Figure 3 In order to reduce the space occupied by the car top 4, the vertical beam 2 is connected with an upper beam 41, one side of the upper beam 41 is provided with a car top wheel 42 which is used for cooperating with a steel wire rope to pull the car 200.

[0028] In combination with Figure 4 As shown in the figure, the car top wheel 42 comprises a pulley 421, a top wheel seat 422, a mounting plate 423, an upper reinforcing plate 424, a guide column 425, a buffer spring 426 and a lower reinforcing plate 427; the pulley 421 is arranged on the upper portion of the top wheel seat 422, the guide column 425 is arranged on the bottom portion of the top wheel seat 422, the guide column 425 is sequentially sleeved with the mounting plate 423, the upper reinforcing plate 424, the buffer spring 426 and the lower reinforcing plate 427 from top to bottom, the mounting plate 423 is fixedly connected with the upper beam 41, and the end of the guide column 425 is provided with an adjusting bolt 428. Since the mounting plate 423 is fixedly connected with the upper beam 41, the upper reinforcing plate 424, the guide column 425, the buffer spring 426 and the lower reinforcing plate 427 are arranged below one side of the upper beam 41, which not only plays the functions of pulling and buffering of the car top wheel 42, but also reduces the space occupied by the car top wheel 42 in the car top 4, reduces the required top layer height and meets the requirement of installing the elevator in a building with a low top layer height.

[0029] Correspondingly, in order to guide the upper side of the car 200, the upper beam 41 is provided with upper guide shoes 43 on both sides, which can slide relative to the guide rail 101.

[0030] In summary, through the redesign of the car bottom 1 structure and the car top 4 structure, the height requirement of the pit and the top layer can be reduced, and the top layer height of 3.85 meters can meet the installation requirement of the 2.5-meter car 200. At the same time, the pit depth only needs 1.2 meters, which meets the requirement of most old buildings and newly built self-built houses with elevator installation.

[0031] The above is the preferred embodiment of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the present application, several improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. An elevator with ultra-low headroom and pit, characterized in that, The elevator comprises a shaft and a car arranged in the shaft; The car comprises a car bottom, a vertical beam, side plates, a car top and a car door, The side plates are arranged at the left and right edges and the rear edge of the upper surface of the car bottom, the car door is arranged at the front edge of the upper surface of the car bottom, and the car top is arranged at the top of the side plates; The car bottom comprises a bottom plate cross beam and a bottom plate side beam, the end portions of the bottom plate cross beam and the bottom plate side beam are connected to each other, and the connection portions of the bottom plate cross beam and the bottom plate side beam are connected to the vertical beam through a connecting plate; The lower end of the vertical beam is flush with the bottom surface of the bottom plate cross beam and the bottom plate side beam; The bottom of the car bottom is provided with an anti-twist plate, the anti-twist plate covers the lower end of the vertical beam and the connection portions of the bottom plate cross beam and the bottom plate side beam, and the lower surface of the anti-twist plate is provided with a safety clamp, which is arranged in cooperation with the guide rail in the shaft; The upper surface of the end portion of the bottom plate side beam is provided with a car door support, the car door support is provided with a car door sliding rail, the car door is arranged on the car door sliding rail and can slide relative to the car door sliding rail; The top of the vertical beam is connected to an upper beam, one side of the upper beam is provided with a car top wheel, and the car top wheel is used for cooperating with a steel wire rope to pull the car; The car top wheel comprises a pulley, a top wheel seat, a mounting plate, an upper reinforcing plate, a guide column, a buffer spring and a lower reinforcing plate, the pulley is arranged on the upper portion of the top wheel seat, the guide column is arranged on the bottom portion of the top wheel seat, the guide column is sequentially sleeved with the mounting plate, the upper reinforcing plate, the buffer spring and the lower reinforcing plate from top to bottom, the mounting plate is fixedly connected to the upper beam, and the end portion of the guide column is provided with an adjusting bolt.

2. The elevator with ultra-low headroom and pit according to claim 1, characterized in that, The lower surface of the safety clamp is provided with a lower guide shoe, and the lower guide shoe can slide relative to the guide rail.

3. The elevator with ultra-low headroom and pit according to claim 1, characterized in that, The bottom plate cross beam and the bottom plate side beam are both made of channel steel, the bottom plate cross beam has a channel bottom extension segment, and the channel bottom extension segment extends into the channel walls of the end portion of the bottom plate side beam.

4. The elevator with ultra-low headroom and pit according to claim 3, characterized in that, The bottom plate cross beam and the bottom plate side beam are provided with a car bottom plate thereon.

5. The elevator with ultra-low headroom and pit according to claim 1, characterized in that, The upper beam is provided with upper guide shoes on both sides, and the upper guide shoes can slide relative to the guide rail. The upper beam is provided with upper guide shoes on both sides, and the upper guide shoes can slide relative to the guide rail.

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