An elevator guide rail device for over-speed limiting operation

Abstract

This invention discloses an elevator guide rail device for overspeed limiting operation, relating to the field of elevator equipment. It includes a guide frame installed and connected to the side wall of the elevator shaft. A sliding frame for driving the elevator car up and down along the elevator shaft is vertically connected to the guide frame. A limit protection mechanism is installed and connected to the sliding frame, and the limit protection mechanism is installed and connected to the elevator car. The limit protection mechanism includes a limit connecting seat, which is movably mounted on the sliding frame and connected to the elevator car. The limit connecting seat is provided with a clamping structure for holding and limiting the sliding frame. This guide rail device has a reasonable structural design, which not only ensures the smooth and safe ascent of the elevator car, but also ensures the safety and reliability of the elevator during overspeed operation, guaranteeing the safety of personnel inside the car.

Description

Technical Field

[0001] This invention relates to the field of elevator equipment, specifically to an elevator guide rail device for overspeed limit operation. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves along at least two rigid guide rails that are perpendicular to the horizontal plane or have an angle of inclination of less than 15° from the vertical. There are also escalators, where steps are mounted on a continuous track and run. They are fixed lifting devices serving designated floors. A vertical elevator has a car that runs between at least two rigid guide rails that are vertical or have an angle of inclination of less than 15°; the car's size and structure facilitate passenger entry and exit or loading and unloading of goods. Conventionally, regardless of its drive method, elevator is used as a general term for vertical transportation tools within a building.

[0003] During prolonged use, elevator guide rails wear down, making the elevator car difficult to control when operating at excessive speeds, potentially leading to safety accidents. Therefore, a guide rail device for elevator lifting and lowering was designed and manufactured to ensure safe operation even when the elevator is running at excessive speeds. Summary of the Invention

[0004] The purpose of this invention is to provide an elevator guide rail device for overspeed limit operation. The guide rail device has a reasonable structural design, which can not only ensure the smooth and safe ascent of the elevator car, but also ensure the safety and reliability of the elevator during overspeed operation and ensure the safety of the people in the car.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An elevator guide rail device for overspeed limiting operation includes a guide frame installed and connected to the side wall of the elevator shaft. A sliding frame for driving the elevator car to move up and down along the elevator shaft is ellipsably connected to the guide frame. A limit protection mechanism is installed and connected to the sliding frame, and the limit protection mechanism is installed and connected to the elevator car.

[0007] The limiting protection mechanism includes a limiting connecting seat, which is movably mounted on a sliding frame. The limiting connecting seat is used to connect to the elevator car and is provided with a clamping structure for clamping and limiting the sliding frame.

[0008] Preferably, the sliding frame includes two vertically parallel sliding beams, the top ends of the two sliding beams are connected by a top beam, and the bottom ends of the two sliding beams are connected by a bottom beam.

[0009] The limiting connecting seat is disposed between two sliding beams. The top and bottom ends of both sides of the limiting connecting seat are respectively connected to movable rollers via rotating shafts. The movable rollers are respectively rotatably disposed with the side wall of the sliding beam closest to the movable roller.

[0010] The sliding frame is connected to the guide frame via a lifting mechanism, which drives the sliding frame to move up and down along the guide frame.

[0011] Preferably, each end of the two sides of the limiting connecting seat is provided with a clamping structure. Each clamping structure includes a pair of movable limiting rollers symmetrically arranged on both sides of the limiting connecting seat. The movable limiting rollers are rotatably connected to the limiting connecting seat through a rotating shaft. The pair of movable limiting rollers on the same side are movably arranged with the side wall of the sliding beam to limit the limiting connecting seat on the sliding beam.

[0012] Preferably, the guide frame includes two parallel vertically installed and fixed to the side wall of the elevator shaft, and two sliding beams are arranged between the two guide beams in a height-adjustable manner.

[0013] The sliding beam and guide beam, which are arranged on the same side, are respectively rolled by the first rotating roller. The first rotating roller is mounted at the bottom end of the sliding beam through a rotating shaft, and the first rotating roller and guide beam are rolled close to the inner wall of the sliding beam.

[0014] Several second rotating rollers are evenly distributed on one end face of the guide beam near the sliding beam. The second rotating rollers are rolled along the side wall of the sliding beam on the same side by rotating through a rotating shaft.

[0015] Preferably, the bottom ends of the two sliding beams are respectively connected to first guide rollers via rotating shafts. The first guide rollers are respectively rolled against the side walls of the guide beams. The two first guide rollers on the same side are respectively limited on both sides of the sliding beams for guiding and limiting the sliding beams.

[0016] Preferably, the sidewalls of the two guide beams are evenly provided with a plurality of second guide limiting structures for limiting the sliding beam that moves up and down along the guide beams. Each of the second guide limiting structures includes a pair of second guide rollers rotatably connected to the sidewalls of the guide beams via a rotating shaft. The second guide rollers are rotatably connected to the sidewalls of the sliding beams.

[0017] Preferably, a plurality of friction-reducing rolling bearings are evenly distributed on one side wall of the guide beam near the sliding beam, and the rolling bearings are rotatably connected to the side wall of the sliding beam via a rotating shaft.

[0018] Preferably, there are two lifting mechanisms, which are symmetrically arranged on both sides of the sliding frame;

[0019] Each lifting mechanism includes a first sprocket, a second sprocket, and a chain. The first sprocket is rotatably mounted on the bottom of two guide beams via a rotating shaft. The second sprocket is located on the top of the two guide beams and is rotatably mounted on the two guide beams via a rotating shaft. The chain is driven by the first sprocket and the second sprocket respectively. The chain is connected to the sliding frame via a connecting block and is used to drive the sliding frame to lift.

[0020] A servo motor for driving the first sprocket to rotate is installed on the first sprocket, and the servo motor is fixedly mounted on the guide frame.

[0021] Preferably, a first pulley is rotatably connected to the bottom beam at the bottom of the two sliding beams, and a second pulley is rotatably connected to the top beam at the top of the two sliding beams. The first pulley and the second pulley are arranged on the same side, and a steel wire rope is connected to the first pulley and the second pulley in a closed loop to reinforce and stabilize the limiting connection seat.

[0022] A limiting roller is rotatably connected to the limiting connecting seat, and the wire rope is rotatably wound around the limiting roller.

[0023] The beneficial effects of this invention are: the device has a reasonable structural design, which can ensure the safe and stable operation of the elevator car when it is running at high speed, and also ensure the safety of the people in the elevator car. The device's structural design includes a guide frame installed and connected to the side wall of the elevator shaft. A sliding frame, capable of lifting and lowering, is connected to the guide frame to move the elevator car along the shaft. A limit protection mechanism is installed on the sliding frame and connected to the elevator car. This design ensures that when the elevator car is running at excessive speed, the limit protection mechanism provides protection, guaranteeing safe and stable operation. The limit protection mechanism includes a limit connecting seat, movably mounted on the sliding frame and connected to the elevator car. The limit connecting seat has a clamping structure for holding and limiting the elevator car to the sliding frame. The elevator car is installed and connected to the limit connecting seat, which in turn is connected to the sliding frame. The sliding frame moves up and down along the guide frame, thus moving both the limit connecting seat and the elevator car together, facilitating the movement of passengers to their desired floors. Furthermore, the clamping structure ensures the safety and stability of the elevator car during excessive speed operation, guaranteeing the safety of passengers inside. In terms of overall structure, the guide rail device has a reasonable design, which can not only ensure the smooth and safe ascent of the elevator car, but also ensure the safety and reliability of the elevator when running at high speed, thus ensuring the safety of the people in the car. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an elevator guide rail device for overspeed limiting operation according to the present invention;

[0025] Figure 2 This is an exploded schematic diagram of the structural components of an elevator guide rail device for overspeed limiting operation according to the present invention.

[0026] Figure 3 This is a schematic diagram of the sliding frame connection structure of an elevator guide rail device for overspeed limiting operation according to the present invention;

[0027] Figure 4 This is a schematic diagram of the guide frame connection structure of an elevator guide rail device for overspeed limiting operation according to the present invention;

[0028] Figure 5 This is a schematic diagram of the limiting connection seat structure of an elevator guide rail device for overspeed limiting operation according to the present invention;

[0029] In the diagram, 11-guide beam, 13-second guide roller, 14-rolling bearing, 21-sliding beam, 22-first rotating roller, 23-first guide roller, 24-second pulley, 31-limiting connecting seat, 32-movable limiting roller, 33-first pulley, 34-wire rope, 35-movable roller, 41-first sprocket, 42-second sprocket, 43-chain, 44-servo motor. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0032] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] like Figures 1 to 5 As shown, an elevator guide rail device for overspeed limiting operation is disclosed. This device has a reasonable structural design, ensuring the safe and stable operation of the elevator car even when it is running at overspeed, and guaranteeing the safety of the people inside the elevator car. The device's structural design includes a guide frame installed and connected to the side wall of the elevator shaft. A sliding frame for moving the elevator car up and down along the elevator shaft is vertically connected to the guide frame. A limit protection mechanism is installed and connected to the sliding frame. This design ensures that when the elevator car is running at overspeed, the limit protection mechanism provides protection, guaranteeing safe and stable operation even when the elevator car is running at overspeed. The limit protection mechanism includes a limit connecting seat 31, which is movably mounted on the sliding frame. The limiting connector 31 is used to connect to the elevator car. The limiting connector 31 is provided with a clamping structure for clamping and limiting the sliding frame. The elevator car is installed and connected to the limiting connector 31, and the limiting connector 31 is installed and connected to the sliding frame. The sliding frame moves up and down along the guide frame, thereby driving the limiting connector 31 and the elevator car installed and connected to the limiting connector 31 to move up and down together, making it convenient for people in the elevator car to reach the required floor position. In addition, the clamping structure can ensure the safety and stability of the elevator car when running at high speed, ensuring the safety of people in the elevator car.

[0034] Furthermore, in actual use of this device, the guide frame for guiding lifting is installed at the designed location in the elevator shaft. The guide frame's structural design includes two parallel, vertically installed guide beams 11 fixed to the side wall of the elevator shaft, such as... Figure 2As shown, a sliding frame for driving the elevator car up and down along the elevator shaft is vertically and vertically connected to the guide frame. The sliding frame includes two vertically parallel sliding beams 21, the top ends of which are connected by a top beam, and the bottom ends of which are connected by a bottom beam. A limit protection mechanism is also installed on the sliding frame and connected to the elevator car. The limit protection mechanism includes a limit connecting seat 31, which is movably mounted on the sliding frame and connected to the elevator car. The limit connecting seat 31 has a clamping structure for holding and limiting the sliding frame. Specifically, in the design, the limit connecting seat is positioned between the two sliding beams 21. The top and bottom ends of both sides of the limit connecting seat 31 are connected to movable rollers 35 via rotating shafts. The movable rollers 35 are rotatably mounted to the sidewalls of the sliding beams 21 closest to the movable rollers 35. Furthermore, the sliding frame and the guide frame are connected by a lifting mechanism, which drives the sliding frame to move up and down along the guide frame. In implementation, the two guide beams 11 of the device's guide frame are installed and fixed on the side wall of the elevator shaft. To ensure stability, one of these devices can be installed on each of the two opposite side walls of the elevator shaft, that is, two guide beams 11 can be installed on each of the two opposite side walls of the elevator shaft. Figure 4 As shown, sliding beams 21, which can rise and fall along the two guide beams 11, are installed on the two guide beams 11 on the same side. An upper limit connecting seat 31 is installed between the two sliding beams 21. The elevator car is then fixed to the two upper limit connecting seats 31 in the elevator shaft. The sliding frame is moved up and down along the guide beams by controlling the respective lifting mechanisms, thus moving the elevator car along the elevator shaft to facilitate the movement of passengers to their desired floors. During the lifting and lowering process of the two sliding beams 21 along the guide beams 11, the two side walls of the upper limit connecting seat 31 between the two sliding beams 21 are in contact with the side wall of the nearest sliding beam 21 via movable rollers 35. This ensures that the elevator car maintains a certain degree of mobility during operation, avoiding rigid connections and reducing the feeling of bumps and vibrations for passengers inside the elevator car, thus ensuring comfort.

[0035] Furthermore, to ensure safety and reliability even when the elevator car is running at overspeed, the device is equipped with clamping structures at both ends of the limit connecting seat 31, such as... Figure 5As shown, each clamping structure includes a pair of movable limiting rollers 32 symmetrically arranged on both sides of the limiting connecting seat 31. The movable limiting rollers 32 are rotatably connected to the limiting connecting seat 31 via a rotating shaft. The pair of movable limiting rollers 32 on the same side are movably arranged with the side wall of the sliding beam 21 to limit the limiting connecting seat 31 on the sliding beam 21. At the same time, the two sliding beams 21 are raised and lowered between the two guide beams 11. The sliding beams 21 and guide beams 11 on the same side are respectively rolled by first rotating rollers 22. The first rotating rollers 22 are rotatably mounted on the bottom end of the sliding beam 21 via a rotating shaft, and the first rotating rollers 22 and guide beams 11 are rolled close to the inner wall of the sliding beam 21. Several second rotating rollers are evenly distributed on one end face of the guide beam 11 close to the sliding beam 21. The second rotating rollers are rolled with the side wall of the sliding beam 21 on the same side via a rotating shaft. In implementation, the limiting connecting seat 31 is limited on the sliding beam 21 by the set movable limiting roller 32, so as to ensure that the limiting connecting seat 31 and the sliding beam 21 always remain in a movable limited position, while preventing the limiting connecting seat 31 from slipping off the sliding frame; in implementation, by limiting the limiting connecting seat 31, the elevator car installed and connected to the limiting connecting seat 31 is limited, thereby achieving the purpose of design and use.

[0036] Furthermore, in order to enable the elevator car to move up and down along the elevator shaft to the desired floor, the device also includes a lifting mechanism for driving the limit connecting seat 31 to move up and down; such as Figure 3 As shown, two lifting mechanisms are provided on the same device, and they are symmetrically arranged on both sides of the sliding frame. Each lifting mechanism includes a first sprocket 41, a second sprocket 42, and a chain 43. The first sprocket 41 is rotatably connected to the bottom end of the two guide beams 11 via a rotating shaft. The second sprocket 42 is located at the top of the two guide beams 11 and is rotatably connected to the two guide beams 11 via a rotating shaft. The chain 43 is connected to the first sprocket 41 and the second sprocket 42 respectively. The chain 43 is connected to the sliding frame through a connecting block and is used to drive the sliding frame to lift. A servo motor 44 for driving the first sprocket 41 to rotate is installed on the first sprocket 41. The servo motor 44 is fixedly installed on the guide frame. In the process of controlling the elevator car to rise and fall, the servo motor 44 is started, which drives the first sprocket 41 connected to the output end of the servo motor 44 to rotate. The first sprocket 41 cooperates with the second sprocket 42, which is rotatably mounted on the guide beam 11 and is located on the same side, to drive the chain 43 to rotate. In order to drive the elevator car, which is mounted and limited on the sliding frame, to rise and fall, the chain 43 on the same side is connected to the sliding beam 21 of the sliding frame through connecting blocks. The chain 43 moves up and down, which drives the sliding frame to rise and fall, thereby driving the elevator car to move and achieving the designed effect.

[0037] Furthermore, to ensure smooth lifting and safety during the elevator car's movement, the design incorporates first guide rollers 23 rotatably connected to the bottom ends of the two sliding beams 21 via rotating shafts. These first guide rollers 23 are rotatably mounted against the side walls of the guide beams 11. The two first guide rollers 23 on the same side are positioned on either side of the sliding beams 21, guiding and limiting their movement. Simultaneously, several second guide limiting structures are evenly distributed along the side walls of the two guide beams 11 to limit the movement of the sliding beams 21. Each second guide limiting structure includes a pair of second guide rollers 13 rotatably connected to the side walls of the guide beams 11 via rotating shafts. The second guide rollers 13 are rotatably mounted against the side walls of the sliding beams 21. Additionally, several friction-reducing rolling bearings 14 are evenly distributed along the side wall of the guide beams 11 closest to the sliding beams 21. These rolling bearings 14 are rotatably mounted against the side walls of the sliding beams 21 via rotating shafts. During the lifting and lowering of the elevator car, the sliding beam 21 moves up and down along the guide beam 11, driving the elevator car, which is installed and connected to the limit connecting seat 31, to move up and down along the elevator shaft. To reduce frictional losses, a rolling bearing 14 is rotatably installed at certain intervals on each guide beam 11. The rolling bearing 14 makes rolling contact with the sliding beam 21 during lifting and lowering, reducing frictional resistance, protecting the sliding frame and guide frame, increasing service life, and ensuring long-term operation and elevator car safety. A first pulley 33 is rotatably connected to the bottom beam at the bottom of the two sliding beams 21, and a second pulley 24 is rotatably connected to the top beam at the top of the two sliding beams 21. The first pulley 23 and the second pulley 24 are located on the same side, and a steel wire rope 34 is connected to the first pulley 23 and the second pulley 24 in a closed loop to reinforce and stabilize the limit connecting seat. A limit roller is rotatably connected to the limit connecting seat 31, and the steel wire rope 34 is rotatably wound around the limit roller. Furthermore, even when the elevator is operating at excessive speed, the steel wire rope 34 further reinforces the elevator car, sliding frame, and guide frame, ensuring safe and reliable operation. It should be noted that the structural diagram of this device is only a design drawing and does not include the height of all floors. Therefore, the height, length, and other specific dimensions of the device need to be adjusted according to actual conditions, and the various structures need to be installed more densely. These details are not described in detail here. From the overall structural perspective, the guide rail device is rationally designed, ensuring not only the smooth and safe ascent of the elevator car but also the safety and reliability of the elevator during high-speed operation, guaranteeing the safety of personnel inside the car.

[0038] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the embodiments described above. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. Furthermore, the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. At the same time, various different embodiments of the present invention can also be arbitrarily combined, as long as they do not violate the spirit of the present invention, they should also be considered as the content disclosed by the present invention.

Claims

1. An elevator guide rail device for overspeed limit operation, characterized in that, The system includes a guide frame that is installed and connected to the side wall of the elevator shaft. A sliding frame for driving the elevator car to move up and down along the elevator shaft is vertically connected to the guide frame. A limit protection mechanism is installed and connected to the sliding frame, and the limit protection mechanism is installed and connected to the elevator car. The limiting protection mechanism includes a limiting connecting seat, which is movably mounted on a sliding frame. The limiting connecting seat is used to connect to the elevator car, and the limiting connecting seat is provided with a clamping structure for clamping and limiting the sliding frame. The sliding frame includes two vertically parallel sliding beams, the top ends of the two sliding beams are connected by a top beam, and the bottom ends of the two sliding beams are connected by a bottom beam. The limiting connecting seat is disposed between two sliding beams. The top and bottom ends of both sides of the limiting connecting seat are respectively connected to movable rollers via rotating shafts. The movable rollers are respectively rotatably disposed with the side wall of the sliding beam closest to the movable roller. The sliding frame is connected to the guide frame via a lifting mechanism, which drives the sliding frame to move up and down along the guide frame. The two ends of the limiting connecting seat are respectively provided with clamping structures. Each clamping structure includes a pair of movable limiting rollers symmetrically arranged on both sides of the limiting connecting seat. The movable limiting rollers are rotatably connected to the limiting connecting seat through a rotating shaft. The pair of movable limiting rollers on the same side are respectively movably arranged with the side wall of the sliding beam to limit the limiting connecting seat on the sliding beam. The guide frame includes two parallel vertically installed guide beams fixed to the side wall of the elevator shaft, and two sliding beams are arranged between the two guide beams in a height-adjustable manner. The sliding beam and guide beam, which are arranged on the same side, are respectively rolled by the first rotating roller. The first rotating roller is mounted at the bottom end of the sliding beam through a rotating shaft, and the first rotating roller and guide beam are rolled close to the inner wall of the sliding beam. A plurality of second rotating rollers are evenly distributed on one end face of the guide beam near the sliding beam. The second rotating rollers are rolled along the side wall of the sliding beam on the same side by rotating through a rotating shaft. The bottom ends of the two sliding beams are respectively connected to first guide rollers via rotating shafts. The first guide rollers are respectively rolled against the side walls of the guide beams. The two first guide rollers on the same side are respectively limited on both sides of the sliding beams for guiding and limiting the sliding beams.

2. The elevator guide rail device for overspeed limit operation according to claim 1, characterized in that, The sidewalls of the two guide beams are evenly provided with a plurality of second guide limiting structures for limiting the sliding beam that moves up and down along the guide beams. Each of the second guide limiting structures includes a pair of second guide rollers that are rotatably connected to the sidewalls of the guide beams via a rotating shaft. The second guide rollers are rotatably connected to the sidewalls of the sliding beams.

3. The elevator guide rail device for overspeed limit operation according to claim 2, characterized in that, The guide beam has several rolling bearings evenly distributed on one side wall near the sliding beam to reduce friction. The rolling bearings are rotatably connected to the side wall of the sliding beam via a rotating shaft.

4. The elevator guide rail device for overspeed limit operation according to claim 1, characterized in that, There are two lifting mechanisms, which are symmetrically arranged on both sides of the sliding frame. Each lifting mechanism includes a first sprocket, a second sprocket, and a chain. The first sprocket is rotatably mounted on the bottom of two guide beams via a rotating shaft. The second sprocket is located on the top of the two guide beams and is rotatably mounted on the two guide beams via a rotating shaft. The chain is driven by the first sprocket and the second sprocket respectively. The chain is connected to the sliding frame via a connecting block and is used to drive the sliding frame to lift. A servo motor for driving the first sprocket to rotate is installed on the first sprocket, and the servo motor is fixedly mounted on the guide frame.

5. An elevator guide rail device for overspeed limit operation according to claim 4, characterized in that, A first pulley is rotatably connected to the bottom beam at the bottom of the two sliding beams, and a second pulley is rotatably connected to the top beam at the top of the two sliding beams. The first pulley and the second pulley are arranged on the same side. A steel wire rope is connected to the first pulley and the second pulley in a closed loop with the first pulley and the second pulley, which is used to reinforce and stabilize the limiting connection seat. A limiting roller is rotatably connected to the limiting connecting seat, and the wire rope is rotatably wound around the limiting roller.

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