Elevator structure easy to maintain

Abstract

The invention provides an elevator structure easy to maintain, and belongs to the technical field of elevators. The elevator structure easy to maintain comprises a frame and a lift car, the lift car is connected in the frame in a sliding mode, a traction piece is arranged on the frame and comprises a traction machine, a steel belt and a counterweight, and the steel belt is arranged on the traction machine in a lap joint mode. In the application, the steel belt on the traction machine is steered through the fixed pulley, so that the traction machine can be arranged outside an elevator shaft and above an elevator door, the top space of the elevator shaft is saved, the situation that the size of a lift car is occupied is reduced, maintenance personnel can perform maintenance in an elevator room without entering the elevator shaft or shutting down the elevator, and the maintenance efficiency is improved. And when a passenger is trapped between the two floors, due to the external design of the traction machine, the traction piece can be conveniently driven to operate through the hand driving piece, the lift car is lifted to be flush with the elevator door, the trapped person can quickly leave the elevator, and safety and convenience are improved.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to an elevator structure that is easy to maintain. Background Art

[0002] The top traction elevator is a simple and common method in which a traction machine is installed at the top of the elevator shaft, a steel belt is hung on the pulley of the traction machine, and the two ends of the steel belt are respectively connected to the car and the counterweight.

[0003] For example, Chinese patent application number CN202223272456.2 discloses a rear-counterweight top-hanging elevator structure in which the car can be raised to the main engine position. The solution is to set the traction machine at the top of the elevator shaft to pull the car up and down.

[0004] However, in the process of implementing the technical solutions in the embodiments of the present application, the inventors of the present application found that the above technology has at least the following technical problems:

[0005] 1. For elevator shafts with limited space, the traction machine occupies a large space at the top of the elevator shaft, resulting in the car space being squeezed, affecting the elevator riding experience;

[0006] 2. Since the traction equipment such as the traction machine is installed at the top of the elevator shaft, the elevator must be stopped for maintenance, and it is not convenient to enter the elevator shaft for maintenance;

[0007] 3. When an elevator breaks down and causes passengers to be trapped in the car, the car cannot usually be moved and the only option is to open the elevator door and let the trapped people leave the car. If the car is stuck between two floors at this time, the trapped people can only climb out through the gap in the door, which is dangerous and inconvenient. Summary of the invention

[0008] In order to make up for the above shortcomings, the present application provides an elevator structure that is easy to maintain, aiming to improve the problems mentioned in the above background technology.

[0009] An embodiment of the present application provides an elevator structure that is easy to maintain, comprising a frame and a car, the car being slidably connected within the frame, a traction member being provided on the frame, the traction member comprising a traction machine, a steel belt and a counterweight, the steel belt being placed on the traction machine, and two ends of the steel belt being fixedly connected to the car and the counterweight respectively, a bracket being provided on the outer side of the top end of the frame, the bracket being located above an elevator door outside the elevator shaft, the traction machine being installed in the bracket, a hand-driven member being provided on the bracket, the hand-driven member being connected to a detachable shaft of the traction machine, the traction member further comprising a fixed pulley, the fixed pulley being rotatably connected to the frame, and the steel belt being deflected via the fixed pulley.

[0010] In a specific embodiment, a buffer pad is provided between the bracket and the frame.

[0011] In a specific embodiment, the bracket is movably connected to the frame by fasteners, and the buffer pad is clamped between the frame and the bracket by the fasteners.

[0012] In the above implementation process, a buffer pad is placed between the bracket and the frame, and then tightened with fasteners such as bolts, so that the bracket obtains certain elasticity and shock-absorbing ability. When the traction machine runs on the bracket, shock absorption and buffering can be obtained, which is beneficial to the smooth operation and noise reduction of the elevator.

[0013] In a specific embodiment, three fixed pulleys are provided, and all three fixed pulleys are rotatably connected to the top end of the frame.

[0014] In the above implementation process, the three fixed pulleys guide the steel belt to the traction machine outside the elevator shaft, ensuring that the steel belt above the car and the counterweight is vertically arranged, avoiding the generation of oblique force and affecting the normal operation of the elevator.

[0015] In a specific embodiment, the manual driving member includes a worm gear and a worm. The worm gear is rotatably connected to the bracket, the worm gear is connected to the traction machine shaft, and the worm is detachably meshed with the worm gear.

[0016] In the above implementation process, the worm is meshed with the worm gear. By rotating the worm, the worm gear is driven to rotate, and then the traction machine is driven to rotate. In the manual driving mode, the car is run to the state aligned with the elevator door, facilitating the trapped personnel to quickly leave the car. When the elevator is running, the worm is disengaged from the worm gear and will not affect the normal operation of the traction machine.

[0017] In a specific embodiment, the manual driving member further includes a rotating seat and a hinge seat. The rotating seat is rotatably connected to the upper end of the worm, the rotating seat is hinged to the hinge seat, and the hinge seat is fixedly connected to the bracket.

[0018] In the above implementation process, the worm realizes self-rotation through the rotating seat, thereby driving the worm gear to rotate. The worm realizes the angle deflection through the hinge seat, and then realizes the separation from the worm gear.

[0019] In a specific embodiment, the manual driving member further includes a clamping seat. The clamping seat is fixedly connected to the bracket. A cover tile is hinged on the clamping seat. A through hole adapted to the lower end of the worm is provided between the clamping seat and the cover tile. A screw is screwed on the clamping seat, and the screw clamps the cover tile on the clamping seat.

[0020] In the above implementation process, when the elevator is operating normally, the worm relies on gravity to rest on the outer end of the cover tile, does not mesh with the worm wheel, and does not affect the normal operation of the traction machine. When manual driving is required, the cover tile is opened, the lower end of the worm is embedded in the socket, and then the cover tile is covered, and the screw is passed through the cover tile and tightened on the socket. In this way, the worm and the worm wheel are meshed and manual driving can begin. In this embodiment, copper tiles are also provided in the cover tiles and the sockets, and solid lubricants are embedded in the copper tiles to reduce friction with the worm. It should also be noted that if the elevator is provided with a safety clamp and has been triggered, the car needs to be pulled upward to release the safety clamp that clamps the guide rail.

[0021] In a specific implementation, the lower end of the worm is provided with a hexagonal groove, an extension rod is movably inserted in the hexagonal groove, a convex ball is elastically provided on the hexagonal head of the extension rod, and a groove matching the convex ball is provided in the hexagonal groove of the worm.

[0022] In the above implementation process, the extension rod is used to extend the worm to the height of a human hand. The worm is driven to rotate by driving the extension rod, which is easy to operate. After the convex ball on the extension rod is inserted into the worm, the convex ball is embedded in the groove, which can increase the axial locking force and make the extension rod not easy to fall off the screw.

[0023] In a specific embodiment, a strip-shaped through groove is formed at the lower end of the extension rod.

[0024] In the above implementation process, a tool such as a wrench or a long rod can be inserted into the through slot below the extension rod, which is helpful for exerting force to rotate the worm.

[0025] In a specific implementation, the hand-driven component further includes a storage rack, the storage rack is fixedly connected to the bracket, and the extension rod is movably clamped on the storage rack.

[0026] In the above implementation process, when the elevator is operating normally, the extension rod is stuck on the storage rack. When manual driving is required, the extension rod can be removed and inserted into the worm gear, which is more convenient to use.

[0027] Compared with the prior art, the beneficial effects of this application are:

[0028] 1. The steel belt on the traction machine is turned by the fixed pulley, so that the traction machine can be set outside the elevator shaft, above the elevator door, saving the space at the top of the elevator shaft and reducing the volume of the car being squeezed;

[0029] 2. Maintenance personnel can perform maintenance in the elevator room without entering the elevator shaft or shutting down the elevator;

[0030] 3. When the rider is trapped between two floors, the externally placed design of the traction machine also facilitates driving the traction member to operate through the manual driving member, lifting the car to be flush with the elevator door, facilitating the trapped person to quickly leave the elevator, and improving safety and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0032] Figure 1 is an axonometric structural schematic diagram of an elevator that is easy to maintain provided by an embodiment of the present application;

[0033] Figure 2 is a side view structural schematic diagram of an elevator that is easy to maintain provided by an embodiment of the present application;

[0034] Figure 3 is a schematic diagram of the connection relationship between the steel belt, the fixed pulley and the traction machine provided by an embodiment of the present application;

[0035] Figure 4 is a schematic diagram of the idle state structure of the manual driving member provided by an embodiment of the present application;

[0036] Figure 5 is a schematic diagram of the working state structure of the manual driving member provided by an embodiment of the present application.

[0037] In the figure: 10 - frame; 20 - car; 30 - traction member; 31 - traction machine; 32 - steel belt; 33 - counterweight; 34 - fixed pulley; 40 - bracket; 50 - manual driving member; 51 - worm gear; 52 - worm; 53 - rotating seat; 54 - hinge seat; 55 - clamping seat; 56 - tile cover; 57 - screw; 58 - extension rod; 59 - storage rack; 60 - buffer pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0039] Please refer to Figures 1 - 5, this application provides an elevator structure that is easy to maintain, including a frame 10 and a car 20. The car 20 is slidably connected within the frame 10. A traction member 30 is provided on the frame 10. The traction member 30 includes a traction machine 31, a steel belt 32, and a counterweight 33. The steel belt 32 is placed on the traction machine 31, and both ends of the steel belt 32 are fixedly connected to the car 20 and the counterweight 33 respectively. A bracket 40 is provided outside the top of the frame 10. The bracket 40 is located above the elevator door outside the elevator shaft. The traction machine 31 is installed within the bracket 40. A manual drive member 50 is provided on the bracket 40. The manual drive member 50 is detachably shaft-connected to the traction machine 31. The traction member 30 further includes a fixed pulley 34. The fixed pulley 34 is rotatably connected to the frame 10. The steel belt 32 is deflected by the fixed pulley 34. Among them, the deflection of the steel belt 32 on the traction machine 31 by the fixed pulley 34 enables the traction machine 31 to be arranged above the elevator door outside the elevator shaft, saving the space at the top of the elevator shaft and reducing the situation where the volume of the car 20 is occupied. Moreover, maintenance personnel can perform maintenance in the elevator hall without entering the elevator shaft or shutting down the elevator. When the passengers are trapped between two floors, the external design of the traction machine 31 also facilitates driving the traction member 30 to operate through the manual drive member 50, lifting the car 20 to be flush with the elevator door, facilitating the trapped personnel to quickly leave the elevator, and improving safety and convenience.

[0040] Please refer to Figures 1 - 3 , a buffer pad 60 is padded between the bracket 40 and the frame 10. The bracket 40 is movably connected to the frame 10 through fasteners. The buffer pad 60 is clamped between the frame 10 and the bracket 40 by the fasteners. Padding the buffer pad 60 between the bracket 40 and the frame 10 and then clamping it tightly with fasteners such as bolts enables the bracket 40 to obtain certain elasticity and shock absorption capacity. In this way, when the traction machine 31 operates on the bracket 40, it can obtain shock absorption and buffering, which is beneficial to the smooth operation of the elevator and noise reduction.

[0041] Please refer to Figures 1 - 3 , three fixed pulleys 34 are provided. All three fixed pulleys 34 are rotatably connected to the top of the frame 10. The three fixed pulleys 34 guide the steel belt 32 to the traction machine 31 outside the elevator shaft, ensuring that the steel belt 32 above the car 20 and the counterweight 33 is vertically arranged, avoiding the generation of oblique forces and affecting the normal operation of the elevator.

[0042] Please refer to Figures 1 - 5 , the manual drive member 50 includes a worm gear 51 and a worm 52. The worm gear 51 is rotatably connected to the bracket 40. The worm gear 51 is shaft-connected to the traction machine 31. The worm 52 is detachably meshed with the worm gear 51. When the worm 52 is meshed with the worm gear 51, the worm gear 51 is driven to rotate by rotating the worm 52, and then the traction machine 31 is driven to rotate. In a manual drive mode, the car 20 is run to a state aligned with the elevator door, facilitating the trapped personnel to quickly leave the car 20. When the elevator is running, the worm 52 is disengaged from the worm gear 51, and it will not affect the normal operation of the traction machine 31.

[0043] See also Figures 1 - 5 The hand-driven part 50 further includes a rotating seat 53 and an articulated seat 54. The rotating seat 53 is rotatably connected to the upper end of the worm 52. The rotating seat 53 is articulated to the articulated seat 54. The articulated seat 54 is fixedly connected to the bracket 40. The worm 52 rotates by the rotating seat 53, thereby driving the worm wheel 51 to rotate. The worm 52 deflects an angle by the articulated seat 54, thereby separating from the worm wheel 51.

[0044] See also Figures 1 - 5 The hand-driven component 50 also includes a base 55, which is fixedly connected to the bracket 40. A cover tile 56 is hinged on the base 55. A through hole that matches the lower end of the worm 52 is opened between the base 55 and the cover tile 56. A screw 57 is screwed on the base 55, and the screw 57 tightens the cover tile 56 to the base 55. When the elevator is operating normally, the worm 52 relies on gravity to rest on the outer end of the cover tile 56, does not mesh with the worm wheel 51, and does not affect the normal operation of the traction machine 31. When manual driving is required, the cover tile 56 is opened, and the lower end of the worm 52 is embedded in the holder 55, and then the cover tile 56 is covered, and the screw 57 is passed through the cover tile 56 and tightened on the holder 55. In this way, the worm 52 is meshed with the worm wheel 51, and manual driving can begin. In this embodiment, copper tiles are also provided in the cover tile 56 and the holder 55, and solid lubricants are embedded in the copper tiles to reduce friction with the worm 52. It should also be noted that if the elevator is provided with a safety clamp and has been triggered, the car 20 needs to be pulled upward to release the safety clamp that clamps the guide rail.

[0045] See also Figures 4 - 5 The lower end of the worm 52 is provided with a hexagonal groove, in which an extension rod 58 is movably inserted, and a convex ball is elastically provided on the hexagonal head of the extension rod 58, and a groove matching the convex ball is provided in the hexagonal groove of the worm 52. The extension rod 58 is used to extend the worm 52 to the height of a human hand. The worm 52 is driven to rotate by driving the extension rod 58, which is convenient for operation. After the convex ball on the extension rod 58 is inserted into the worm 52, the convex ball is embedded in the groove, which can increase the axial locking force, so that the extension rod 58 is not easy to fall off from the screw.

[0046] See also Figures 4 - 5 A strip-shaped through slot is provided at the lower end of the extension rod 58. A tool such as a wrench or a long rod can be inserted into the through slot below the extension rod 58, which is conducive to exerting force to rotate the worm 52.

[0047] See also Figures 4 - 5 The hand-driven part 50 also includes a storage rack 59, which is fixedly connected to the bracket 40, and the extension rod 58 is movably clamped on the storage rack 59. When the elevator is operating normally, the extension rod 58 is clamped on the storage rack 59. When manual driving is required, the extension rod 58 can be removed and inserted into the worm 52, which is more convenient to use.

[0048] The working principle of this easily maintainable elevator structure is as follows: The steel belt 32 on the traction machine 31 is redirected by the fixed pulley 34, enabling the traction machine 31 to be installed outside the elevator shaft, above the elevator door. This saves the space at the top of the elevator shaft and reduces the encroachment on the volume of the car 20. Moreover, maintenance personnel can perform maintenance in the elevator hall without entering the elevator shaft or shutting down the elevator. Additionally, when the elevator is operating normally, the extension rod 58 is stuck on the storage rack 59, the tile 56 is closed, and the worm 52 rests on the outer end of the tile 56 by gravity without meshing with the worm gear 51, thus not affecting the normal operation of the traction machine 31. When manual driving is required, the tile 56 is opened, the lower end of the worm 52 is inserted into the card seat 55, then the tile 56 is covered, and the screw 57 is passed through the tile 56 and tightened on the card seat 55. In this way, the worm 52 meshes with the worm gear 51. The extension rod 58 is removed and inserted onto the worm 52, and then tools such as a wrench or a long rod are used to facilitate exerting force to rotate the worm 52, thereby driving the worm gear 51 and the traction machine 31 to operate, lifting the car 20 to be level with the elevator door, facilitating the trapped personnel to quickly leave the elevator, and improving safety and convenience. In summary, the redirection of the steel belt 32 on the traction machine 31 by the fixed pulley 34 enables the traction machine 31 to be installed outside the elevator shaft, above the elevator door, saving the space at the top of the elevator shaft and reducing the encroachment on the volume of the car 20. Moreover, maintenance personnel can perform maintenance in the elevator hall without entering the elevator shaft or shutting down the elevator. When the rider is trapped between two floors, the external design of the traction machine 31 also facilitates driving the traction member 30 to operate through the manual driving member 50, lifting the car 20 to be level with the elevator door, facilitating the trapped personnel to quickly leave the elevator, and improving safety and convenience.

[0049] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, improvement, or equivalent replacement made within the spirit and principle of the present application shall be included within the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. An elevator structure that is easy to maintain, comprising a frame (10) and a car (20), wherein the car (20) is slidably connected within the frame (10), a traction member (30) is provided on the frame (10), the traction member (30) includes a traction machine (31), a steel belt (32) and a counterweight (33), the steel belt (32) is draped over the traction machine (31), and both ends of the steel belt (32) are fixedly connected to the car (20) and the counterweight (33) respectively. Characterized in that, A bracket (40) is provided outside the top end of the frame (10), the bracket (40) is located above the elevator door outside the elevator shaft, the traction machine (31) is installed within the bracket (40), a manual drive member (50) is provided on the bracket (40), the manual drive member (50) is detachably shaft-connected to the traction machine (31), the traction member (30) further includes a fixed pulley (34), the fixed pulley (34) is rotatably connected to the frame (10), and the steel belt (32) is deflected by the fixed pulley (34).

2. An elevator structure that is easy to maintain according to claim 1, Characterized in that, A buffer pad (60) is padded between the bracket (40) and the frame (10).

3. An elevator structure that is easy to maintain according to claim 2, Characterized in that, The bracket (40) is movably connected to the frame (10) through fasteners, and the buffer pad (60) is clamped between the frame (10) and the bracket (40) by the fasteners.

4. An elevator structure that is easy to maintain according to claim 1, Characterized in that, Three fixed pulleys (34) are provided, and all three fixed pulleys (34) are rotatably connected to the top end of the frame (10).

5. An elevator structure that is easy to maintain according to claim 1, Characterized in that, The manual drive member (50) includes a worm gear (51) and a worm (52), the worm gear (51) is rotatably connected to the bracket (40), the worm gear (51) is shaft-connected to the traction machine (31), and the worm (52) is detachably meshed with the worm gear (51).

6. An elevator structure that is easy to maintain according to claim 5, Characterized in that, The manual drive member (50) further includes a rotating base (53) and a hinge base (54), the rotating base (53) is rotatably connected to the upper end of the worm (52), the rotating base (53) is hinged to the hinge base (54), and the hinge base (54) is fixedly connected to the bracket (40).

7. An elevator structure that is easy to maintain according to claim 6, Characterized in that, The manual driving member (50) further includes a clamping seat (55). The clamping seat (55) is fixedly connected to the bracket (40). A tile cover (56) is hinged to the clamping seat (55). A through hole adapted to the lower end of the worm (52) is formed between the clamping seat (55) and the tile cover (56). A screw (57) is screwed on the clamping seat (55), and the screw (57) presses the tile cover (56) against the clamping seat (55).

8. An elevator structure easy to maintain according to claim 7, characterized in that an internal hexagonal groove is formed at the lower end of the worm (52), and an extension rod (58) is movably inserted into the internal hexagonal groove. A convex ball is elastically arranged on the hexagonal head of the extension rod (58), and a groove adapted to the convex ball is formed in the internal hexagonal groove of the worm (52).

9. An elevator structure easy to maintain according to claim 8, characterized in that a strip-shaped through groove is formed at the lower end of the extension rod (58).

10. An elevator structure easy to maintain according to claim 9, characterized in that the manual driving member (50) further includes a storage rack (59). The storage rack (59) is fixedly connected to the bracket (40), and the extension rod (58) is movably clamped on the storage rack (59).

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