Lifting mechanism of an elevator

Abstract

The application discloses a lifting mechanism of an elevator and relates to the field of elevator equipment, which comprises a guide frame connected with the lateral wall of an elevator shaft, a sliding frame for driving the elevator car to lift is movably connected to the guide frame, the sliding frame drives the elevator car connected with the sliding frame to lift through a driving structure, and the driving structure is installed on the guide frame. The lifting mechanism can not only ensure that the elevator car can stably lift along the elevator shaft during use, but also can ensure the lifting safety of the elevator car. Compared with a traditional guide rail system, the lifting mechanism can save materials and cost.

Description

Technical Field

[0001] This invention relates to the field of elevator equipment, specifically to a lifting mechanism for an elevator. Background Technology

[0002] Elevators are engineering devices that serve people, providing convenient access to different floors. In high-rise buildings, elevator performance and safety are particularly important. To ensure safe operation during elevator movement, further reinforcement and stabilization of the elevator's lifting mechanism are necessary. Due to the limited space in the elevator shaft, existing guide rail systems primarily use guide rails installed on the side walls of the shaft for guiding and limiting the elevator's movement. During prolonged use, the elevator car wears down on the guide rails due to friction, causing the elevator car to loosen and shift, resulting in shaking and, in severe cases, even accidents. Therefore, to reduce the risk of accidents, a lifting mechanism is installed on the elevator car to ensure smooth lifting during operation. Summary of the Invention

[0003] The purpose of this invention is to provide an elevator lifting mechanism that not only ensures that the elevator car can move smoothly up and down along the elevator shaft during use, but also ensures the safety of the elevator car during lifting. This mechanism saves materials compared to traditional guide rail systems, thereby reducing costs.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] An elevator lifting mechanism includes a guide frame installed and connected to the side wall of the elevator shaft. A sliding frame for driving the elevator car to rise and fall is movably connected to the guide frame. The sliding frame drives the elevator car, which is installed and connected to the sliding frame, to rise and fall through a drive structure. The drive structure is installed on the guide frame.

[0006] Preferably, the guide frame includes two parallel vertically installed and fixed to the side wall of the elevator shaft, and the sliding frame is movably disposed between the two guide beams;

[0007] The sliding frame includes two vertically arranged sliding beams, which are parallel to the guide beam. The sliding beams and guide beams on the same side are respectively rolled by a first rotating roller. The first rotating roller is mounted on 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.

[0008] 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.

[0009] Preferably, the bottom of the two sliding beams is equipped with a support seat for mounting and connecting the elevator car, and the bottom sides of the two sliding beams are respectively rotatably connected to a first bearing via a connecting shaft. The guide beam is disposed between the two first bearings, and the first bearings are respectively rolled with the side wall of the guide beam.

[0010] Preferably, the top ends of the two guide beams are connected by a crossbeam, which is used to cooperate with the drive structure to drive the elevator car installed on the support seat to move up and down;

[0011] The drive structure is provided in two parts, which are respectively located on both sides of the guide frame, and the bottom ends of the two guide beams are connected by a connecting beam.

[0012] The drive structure includes a variable speed motor, a drive gear, and a large gear. The variable speed motor is mounted and fixed on the guide beam of the guide frame. The output shaft of the variable speed motor is connected to the drive gear. The drive gear meshes with the large gear. The large gear is rotatably mounted on the connecting beam and connected to the support seat through the connecting structure, and is used to drive the elevator car, which is mounted and connected to the support seat, to rise and fall.

[0013] Preferably, the connecting structure includes a second sliding gear, a first chain, a first sprocket, a second chain, and a second sprocket. A rotating shaft is connected to the large gear. One end of the rotating shaft is connected to the large gear, and the other end of the rotating shaft is rotatably mounted on the connecting beam through a bearing and connected to the first sprocket. The first sprocket is connected to the second sliding gear through the first chain, and the second sliding gear is rotatably connected to the connecting beam through a limiting seat.

[0014] The second sprocket is mounted on the crossbeam via a rotating shaft; the second sliding gear is connected to the second sprocket via a second chain.

[0015] The second chain is connected to the support base through a limiting structure. The support base is installed on the sliding frame and is used to install and connect the elevator car.

[0016] Preferably, the limiting structure includes a connecting plate, and a crossbar is connected to the bottom end of the two sliding beams and the end near the second chain. One end of the connecting plate is connected to the crossbar, and the other end of the connecting plate is limited and connected to the second chain. The second chain, driven by the second sliding gear, is used to drive the elevator car installed and connected to the support base to move up and down along the elevator shaft.

[0017] Preferably, the top ends of the two sliding beams are connected by a support beam, and the support base is provided with first rollers on both sides of the end face near the second chain. The first rollers are rotatably connected to the support beams via rotating shafts.

[0018] The crossbar near the second chain is rotatably connected to a second roller corresponding to the first roller via a pivot. The first and second rollers, which are arranged on the same side, are connected in a closed loop by a steel wire rope. The steel wire rope can rotate around the first and second rollers respectively and is used to reinforce and stabilize the lifting and lowering of the sliding frame to drive the elevator car.

[0019] Preferably, a first limiting shaft corresponding to the wire rope and used to limit the movement of the wire rope is provided on one end face of the support beam near the second chain, and the wire rope can move through the first limiting shaft.

[0020] A second limiting shaft corresponding to and used to limit the movement of the wire rope is provided on one end face of the crossbeam near the second chain. The wire rope can move through the second limiting shaft.

[0021] The beneficial effects of this invention are as follows: This lifting mechanism is used in elevator equipment and is stably installed in the elevator shaft, allowing the elevator car mounted on it to smoothly rise and fall along the elevator shaft, ensuring safety and reliability during use. The overall design of this lifting mechanism includes a guide frame that is installed and connected to the side wall of the elevator shaft, and a sliding frame movably connected to the guide frame for driving the elevator car to rise and fall. This sliding frame is used to mount and connect the elevator car and can smoothly move the elevator car up and down along the elevator shaft, achieving the intended purpose. Overall, this lifting mechanism not only ensures the smooth rise and fall of the elevator car along the elevator shaft during use, but also ensures the safety of the elevator car during lifting and lowering, and saves materials compared to traditional guide rail systems, thus reducing costs. Attached Figure Description

[0022] Figure 1 This is a front elevation view of the lifting mechanism of an elevator according to the present invention.

[0023] Figure 2 This is an exploded schematic diagram of the structural components of the lifting mechanism of an elevator according to the present invention;

[0024] Figure 3 This is a schematic diagram of the back surface structure of the lifting mechanism of an elevator according to the present invention;

[0025] Figure 4 This is a schematic diagram of the guide frame connection structure of the lifting mechanism of an elevator according to the present invention;

[0026] Figure 5 This is an exploded schematic diagram of the sliding frame connection structure of the lifting mechanism of an elevator according to the present invention.

[0027] In the diagram, 11-guide beam, 12-crossbeam, 13-connecting beam, 14-second rotating roller, 21-sliding beam, 22-first rotating roller, 23-support seat, 24-support beam, 25-first roller, 26-second roller, 27-wire rope, 31-speed changer motor, 32-drive gear, 33-large gear, 41-second sliding gear, 42-first chain, 43-first sprocket, 44-second chain, 45-second sprocket, 46-connecting plate, 211-first bearing. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figures 1 to 5As shown, this lifting mechanism is used in elevator equipment and is stably installed in the elevator shaft. It allows the elevator car, mounted on the lifting mechanism, to move smoothly up and down the elevator shaft, ensuring safety and reliability during use. The lifting mechanism's overall design includes a guide frame that is installed and connected to the side wall of the elevator shaft. A sliding frame, movably connected to the guide frame, is used to mount and connect the elevator car, enabling it to move smoothly up and down the elevator shaft along the sliding frame, achieving the intended purpose.

[0032] Furthermore, in specific implementation, firstly, according to the design and construction requirements, the guide frame of the lifting mechanism is installed and fixed in the elevator shaft. To ensure the elevator car rises and falls smoothly and safely within the elevator shaft, the lifting mechanism is designed with two such mechanisms in one elevator shaft. The elevator car is installed and connected between the two lifting mechanisms, and the elevator car is moved up and down along the elevator shaft by synchronously controlling the two lifting mechanisms. Figure 1 , Figure 2 and Figure 3 As shown, the lifting mechanism comprises a guide frame and a sliding frame movably connected to the guide frame for driving the elevator car up and down. The guide frame includes two parallel, vertically installed guide beams 11 fixed to the side wall of the elevator shaft. The sliding frame is vertically movable between the two guide beams 11. The top ends of the two guide beams 11 are connected by a crossbeam 12, and the bottom ends of the two guide beams 11 are connected by a connecting beam 13, which supports and stabilizes the two guide beams 11 and connects to other structures. After the guide frame is installed and fixed in the elevator shaft, the position, connections, and other important parts of the guide frame are checked. After passing the inspection, the designed sliding frame is installed on the guide frame. The designed sliding frame includes two vertically arranged sliding beams 21, which are parallel to the guide beam 11. The sliding beams 21 and the guide beam 11 on the same side are respectively rolled by a first rotating roller 22. The first rotating roller 22 is mounted on the bottom end of the sliding beam 21 through a rotating shaft, and the first rotating roller 22 and the guide beam 11 are rolled close to the inner wall of the sliding beam 21. The lifting mechanism is equipped with a drive structure. There are two drive structures on the lifting mechanism, which are respectively located on both sides of the guide frame. The bottom of the two sliding beams 22 is equipped with a support seat 23 for mounting and connecting the elevator car. A limit structure is set on the drive structure for connecting the support seat 23. The support seat 23 is used to mount and connect the elevator car. By controlling the drive structure to drive the elevator car to rise and fall through the support seat 23 connected to the limit structure, the elevator car mounted and connected to the support seat 23 can be driven to rise and fall smoothly along the elevator shaft.

[0033] Furthermore, such as Figure 4As shown, the drive structure includes a variable speed motor 31, a drive gear 32, and a large gear 33. The variable speed motor 31 is mounted on the guide beam 21 of the guide frame. The output shaft of the variable speed motor 31 is connected to the drive gear 32, which meshes with the large gear 33. The large gear 33 is rotatably mounted on the connecting beam 13 and connected to the support base 23 through a connecting structure, used to drive the elevator car, which is mounted and connected to the support base 23, to rise and fall. The connecting structure includes a second sliding gear 41, a first chain 42, a first sprocket 43, a second chain 44, and a second sprocket 45. A rotating gear is connected to the large gear 33. One end of the shaft is connected to the large gear 33, and the other end of the shaft is rotatably mounted on the connecting beam 13 via a bearing and connected to the first sprocket 43. The first sprocket 43 is connected to the second sliding gear 41 via the first chain 42. The second sliding gear 41 is rotatably connected to the connecting beam 13 via a limiting seat. The second sprocket 45 is rotatably mounted on the crossbeam 12 via the shaft. The second sliding gear 41 is connected to the second sprocket 44 via the second chain 44. The second chain 44 is connected to the support seat 23 via a limiting structure. The support seat 23 is mounted on the sliding frame and is used to install and connect the elevator car. During the process of the elevator moving up and down along the elevator shaft, the variable speed motor 31, which is synchronously controlled, is started. The variable speed motor 31 drives the drive gear 32 connected to the output shaft of the variable speed motor 31 to rotate. At this time, the drive gear 32 drives the large gear 33 that meshes with it to rotate. In turn, the large gear 33 drives the first sprocket 43, which is rotatably connected to the other end face of the connecting beam 13 via a rotating shaft, to rotate. The first sprocket 43 then drives the second sliding gear 41, which is connected to the connecting beam 13 via a first chain 42, to rotate. The second sliding gear 41 is reinforced by a limiting seat, making it firmly installed and connected to the connecting beam 13. Under the action of the rotation of the second sliding gear 41, the second sliding gear 41 engages with the second sprocket 45, which is rotatably installed and connected to the crossbeam 12, thereby causing the second chain 44 to rotate. This drives the support seat 23, which is connected to the second chain 44 via a limiting structure, to rise and fall. In practice,

[0034] The limiting structure includes a connecting plate 46, and a crossbar connected to the bottom end of the two sliding beams 21 and the end near the second chain 44. One end of the connecting plate 46 is connected to the crossbar, and the other end of the connecting plate is limited and connected to the second chain 44 (connected to the second chain by bolts). The support seat 23 is installed and fixed on the two sliding beams 21 of the sliding frame. Therefore, it can be realized that the second chain 45, driven by the second sliding gear 41, causes the sliding frame to rise and fall along the guide frame. The sliding frame drives the elevator car, which is installed and connected to the sliding frame and connected to the support seat 23, to rise and fall with the sliding frame, thereby realizing the lifting and lowering of the elevator car.

[0035] Furthermore, such as Figure 5As shown, to ensure the smooth, safe, and reliable lifting of the elevator car within the elevator shaft, several second rotating rollers 14 are evenly distributed on one end face of the guide beam 11 near the sliding beam 21 of the lifting mechanism. These second rotating rollers 14 rotate via a rotating shaft and roll against the side wall of the sliding beam 21 on the same side, reducing frictional resistance during the lifting process of the sliding frame along the guide frame. Simultaneously, first bearings 211 are rotatably connected to the bottom sides of the two sliding beams 21 via connecting shafts. The guide beam 11 is positioned between the two first bearings 211, and the first bearings 211 roll against the side wall of the guide beam 11. The top ends of the two sliding beams 21 are connected by a support beam 24. On both sides of the end face of the support beam 24 near the second chain 44, a first roller 25 is provided. The first rollers 25 are rotatably connected to the support beam 24 via a rotating shaft. At the same time, the end of the crossbar near the second chain 44 is rotatably connected to a second roller 25 corresponding to the first roller 25 via a rotating shaft. The first rollers 25 and the second rollers 26 on the same side are connected in a closed loop by a steel wire rope 27. The steel wire rope 27 can rotate around the first rollers 25 and the second rollers 26 respectively, and is used to reinforce and stabilize the lifting and lowering of the sliding frame to drive the elevator car to lift and lower. To reduce the swaying of the wire rope 27 during lifting, a first limiting shaft 231 corresponding to and used to limit the wire rope 27 is installed on the end face of the support base 23 near the second chain 44. The wire rope 27 can move through the first limiting shaft 231. At the same time, a second limiting shaft 121 corresponding to and used to limit the wire rope 27 is installed on the end face of the crossbeam 12 near the second chain 44. The wire rope 27 can move through the second limiting shaft 121. When the sliding frame drives the elevator car to lift and lower along the guide frame that is installed and fixed in the elevator shaft and is adapted to slide the sliding frame, the first limiting shaft 231 and the second limiting shaft 121 limit the wire rope 27 respectively, so that the wire rope 27 rotates around the first roller 25 and the second roller 26 respectively during the lifting and lowering of the sliding frame, which serves to stabilize and limit the sliding frame. Furthermore, during the design and installation process, a lifting strap for lifting and reinforcing the elevator car installed on the support seat is connected to the top of the support beam 24; a set of limiting rollers is also provided at intervals between the two guide beams 11. The sliding beam 21, which can be raised and lowered between the two guide beams 11 and is set on the same side, is respectively set between the two limiting rollers of the set. The sliding beam 21 and the limiting rollers of the set are rolled together. The set of several sets of limiting rollers are used to limit the sliding frame, so that the sliding frame can rise and fall stably along the guide frame.

[0036] Furthermore, regarding the entire lifting mechanism, its drive structure propels a sliding frame that is vertically mounted on a guide frame. This guide frame is fixed to the side wall of the elevator shaft, and multiple limiting structures are installed on the sliding frame. This allows the elevator car, mounted on a support seat on the sliding frame, to rise along the elevator shaft, ensuring the elevator car's stability and safety within the shaft. It should be noted that the accompanying drawings in this embodiment are simplified structural diagrams. In actual implementation, dimensions and heights can be increased or changed according to design and installation needs (in this embodiment, the guide beam of the guide frame is drawn shorter; the actual length can be adjusted). This lifting mechanism not only ensures the elevator car's smooth movement along the elevator shaft during use but also guarantees safe lifting and lowering, saving materials and costs compared to traditional guide rail systems.

[0037] 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. A lifting mechanism for an elevator, 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 rise and fall is movably connected to the guide frame. The sliding frame drives the elevator car to rise and fall through a drive structure installed on the guide frame. The guide frame includes two parallel vertical guide beams that are fixed to the side wall of the elevator shaft, and the sliding frame is movably positioned between the two guide beams. The sliding frame includes two vertically arranged sliding beams, which are arranged parallel to the guide beam. The bottom of the two sliding beams is equipped with support seats for mounting and connecting the elevator car; The bottom ends of the two guide beams are connected by a connecting beam; The drive structure includes a variable speed motor, a drive gear, and a large gear. The variable speed motor is mounted and fixed on the guide beam of the guide frame. The output shaft of the variable speed motor is connected to the drive gear. The drive gear meshes with the large gear. The large gear is rotatably mounted on the connecting beam and connected to the support seat through the connecting structure. It is used to drive the elevator car, which is mounted and connected to the support seat, to rise and fall. The connecting structure includes a second sliding gear, a first chain, a first sprocket, a second chain, and a second sprocket; The second chain is connected to the support base via a limiting structure; A crossbar is connected to the bottom end of the two sliding beams and the end near the second chain; The top ends of the two sliding beams are connected by a support beam. The support beam is provided with first rollers on both sides of the end face near the second chain. The first rollers are connected to the support beam by rotating shafts. The crossbar near the second chain is rotatably connected to a second roller corresponding to the first roller via a pivot. The first and second rollers, which are arranged on the same side, are connected in a closed loop by a steel wire rope. The steel wire rope can rotate around the first and second rollers respectively and is used to reinforce and stabilize the lifting and lowering of the sliding frame to drive the elevator car.

2. The lifting mechanism of an elevator according to claim 1, characterized in that, 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. 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.

3. The lifting mechanism of an elevator according to claim 2, characterized in that, The bottom sides of the two sliding beams are rotatably connected to first bearings via connecting shafts. The guide beam is disposed between the two first bearings, and the first bearings are respectively rolled against the side walls of the guide beams.

4. The lifting mechanism of an elevator according to claim 3, characterized in that, The top ends of the two guide beams are connected by a crossbeam, which is used to cooperate with the drive structure to drive the elevator car installed on the support seat to rise and fall; The drive structure is provided in two parts, which are respectively located on both sides of the guide frame.

5. The lifting mechanism of an elevator according to claim 4, characterized in that, A rotating shaft is connected to the large gear. One end of the rotating shaft is connected to the large gear, and the other end of the rotating shaft is rotatably mounted on the connecting beam through a bearing and connected to the first sprocket. The first sprocket is connected to the second sliding gear through a first chain. The second sliding gear is rotatably connected to the connecting beam through a limiting seat. The second sprocket is mounted on the crossbeam via a rotating shaft; the second sliding gear is connected to the second sprocket via a second chain. The support base is installed on the sliding frame and is used to install and connect the elevator car.

6. The lifting mechanism of an elevator according to claim 5, characterized in that, The limiting structure includes a connecting plate, one end of which is connected to a crossbar, and the other end of which is connected to the second chain for limiting. The second chain, driven by the second sliding gear, is used to drive the elevator car, which is installed and connected to the support base, to move up and down along the elevator shaft.

7. The lifting mechanism of an elevator according to claim 4, characterized in that, The support base is provided with a first limiting shaft corresponding to the wire rope and used to limit the wire rope at one end face near the second chain. The wire rope can move through the first limiting shaft. A second limiting shaft corresponding to and used to limit the movement of the wire rope is provided on one end face of the crossbeam near the second chain. The wire rope can move through the second limiting shaft.

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