Anti-falling structure of elevator
By setting up a multi-stage limit module at the four corners of the lifting material pushing device, the problem of lack of anti-fall design of the pushing device and insufficient first-stage anti-falling in the prior art is solved, and the stable operation of the pushing device and the safety of multiple anti-falling are achieved.
Patent Information
- Application Number
- CN202420789117.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The existing lift anti-fall structure is mainly designed for lifting materials, and lacks anti-fall design for push devices. Most of them only provide first-level anti-fall, which poses stability and safety risks.
A multi-stage safety protection lift anti-fall structure is designed, and three limit modules are set at the four corners of the material pushing device: the first limit module uses gear rack and rack to provide the first level of anti-falling, the second limit module provides the second layer of anti-falling through the plug-in of the telescopic unit and the cuttings, and the third limit module uses a roller to limit the shaking of the width direction of the material pushing device.
The stable operation of the material pushing device is achieved, shaking is avoided, multiple locking is provided, the anti-fall safety of the lift is enhanced, and the risk of the material pushing device falls is reduced.
Smart Images
Figure CN222593371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safe operation of elevators, in particular to an anti-falling structure for elevators. Background Art
[0002] Elevators are widely used in workshops. They are generally used to lift materials to a specified height and then push them in and out. The pushing method of materials can be designed inside or outside the elevator, and can also be manually transported out.
[0003] When the material is lifted to a certain height, an anti-falling design is required. The anti-falling structures in the prior art are mostly designed for the platform for lifting materials, and few people have designed the anti-falling structure for the pushing device.
[0004] In addition, most of the existing anti-fall structures only have first-level anti-fall protection, which still poses a major hidden danger to the stability and safety of lifting operations. Utility Model Content
[0005] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides an elevator anti-fall structure with multi-level safety protection, and through the multi-level protection, the stable operation of the pushing device is achieved without shaking.
[0006] The technical solution of this utility model is as follows:
[0007] An elevator anti-falling structure is installed on the frame of the elevator. The elevator includes a material pushing device for pushing materials on the elevator out of the elevator. The material pushing device is arranged along the length direction of the frame, and also includes:
[0008] The first limit module is located at both ends of the pusher device in the length direction and includes a transmission shaft, a gear and a rack;
[0009] The transmission shaft is arranged along the width direction of the pusher device, and gears are installed at the ends of both ends;
[0010] The frame is provided with a vertically arranged rack at the position corresponding to the gear, and the gear is meshed and connected with the corresponding rack;
[0011] Since the first limit module is located at both ends of the pusher device in the length direction and is connected to the four corners of the frame through a gear rack transmission, the shaking of the pusher device in the length direction can be limited and the first level of anti-fall protection can be provided.
[0012] The second limiting module includes a telescopic unit and an insert;
[0013] The telescopic unit is mounted on the pusher device through a first mounting plate and is arranged close to the gear;
[0014] The inserting strip is arranged vertically beside the rack and has a plurality of inserting holes thereon for the telescopic rod of the telescopic unit to be inserted.
[0015] The second limit module mainly provides a second layer of anti-fall protection through the plug-in connection between the telescopic unit and the insertion strip to prevent the first limit module from sudden power failure or gear slippage.
[0016] The frame of the elevator can adopt a common rectangular frame, and vertically arranged connecting frames are respectively provided at the four corners. Two transmission mechanisms are provided at both ends of the length direction of the frame for conveying materials to the bottom of the pushing device.
[0017] The pusher device is arranged horizontally, which is convenient for fixation and stable for operation.
[0018] The transmission shaft of the first limit module is driven to rotate by a power unit, and the power unit is installed on the pusher device. The power unit can share one with the pusher device, which can drive the pusher device to push the material to move and drive the transmission shaft to rotate, which can be achieved by gear or sprocket transmission.
[0019] Mounting seats are respectively provided at both ends of the pusher device in the length direction, and the mounting seats are arranged along the width direction of the pusher device. The first limit module is arranged on the upper part of the mounting seat, and the second limit module is arranged on the side of the mounting seat, which not only frees up space for installing the limit module, but also facilitates the arrangement of the rack and the insertion strip.
[0020] Preferably, the arrangement direction of the telescopic unit is parallel to the transmission shaft.
[0021] To facilitate on-site assembly and adjustment, an opening is provided on the side of the first mounting plate, into which the telescopic unit can be inserted and the mounting position can be adjusted.
[0022] Correspondingly, the insertion hole of the insertion strip is a U-shaped hole, with the opening facing one side of the rack. In this way, a certain amount of adjustment space is reserved on both the first mounting plate and the insertion strip, which facilitates the on-site assembly of the second limit module.
[0023] In order to limit the shaking of the pushing device in the width direction, the anti-fall structure also includes a third limiting module, which specifically includes a roller. The roller is installed on the pushing device through a second mounting plate and is located below the second limiting module. The axial direction of the roller is perpendicular to the arrangement direction of the telescopic unit, and the outer surface is in contact with the outer surface of the rack and the insert.
[0024] To ensure that the roller rolls smoothly vertically, the outer surfaces of the rack and the insert are flush.
[0025] In this way, when the pusher moves up and down, the roller of the third limit module rolls against the outer surface of the rack and the insert. When it reaches the specified position, it will prevent the pusher from moving in the width direction, thereby ensuring the stable operation of the pusher.
[0026] Through the above design, the anti-falling structure of the elevator of the utility model is arranged at the four corners of the pushing device through three limit modules, which can not only provide multiple locking to prevent the pushing device from falling, but also limit the shaking of the pushing device during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In the attached picture:
[0028] Figure 1 This is a schematic diagram of the installation of the anti-fall structure on the elevator;
[0029] Figure 2 It is a three-dimensional diagram of the fall prevention structure;
[0030] Figure 3 for Figure 1 A partial enlarged view of the X position;
[0031] Figure 4 for Figure 1 A partial enlarged view of the Y position;
[0032] Figure 5 for Figure 2 A partial enlarged view of the middle Z position;
[0033] The components represented by the reference numerals in the figure are:
[0034] 1. Frame; 2. Pushing device; 21. Mounting seat; 3. First limiting module; 31. Power unit; 32. Transmission shaft; 33. Gear; 34. Rack; 4. Second limiting module; 41. Telescopic unit; 42. First mounting plate; 43. Insert; 5. Third limiting module; 51. Second mounting plate; 52. Roller. DETAILED DESCRIPTION
[0035] See also Figure 1 and Figure 2 A fall prevention structure for an elevator is installed on a frame 1 of the elevator. The frame 1 of the elevator can adopt a common rectangular frame 1. Four corners are respectively provided with vertically arranged connecting frames. Two transmission mechanisms are provided at both ends of the length direction of the frame 1 for conveying materials to the bottom of a pushing device 2. Figure 1 The figure shows a transmission chain structure, in which a cross frame is connected between two conveyor chains on one side along the length direction, and materials can be placed on the two opposite cross frames.
[0036] The elevator includes a pushing device 2, which is arranged horizontally and can move vertically. When the material is lifted to a specified height under chain drive, the pushing device 2 can push the material on the elevator out of the elevator. The pushing device 2 is arranged along the length direction of the frame 1, and a pushing piece is provided on one side to push the material out along the length direction of the pushing device 2.
[0037] The following is combined with Figure 3-5 , the anti-fall structure specifically includes:
[0038] The first limiting modules 3 are located at both ends of the pushing device 2 in the length direction, and include a transmission shaft 32 , a gear 33 and a rack 34 .
[0039] The transmission shaft 32 is arranged along the width direction of the pushing device 2, and gears 33 are installed at the end positions of both ends thereof.
[0040] The frame 1 is provided with a vertically arranged rack 34 at a position corresponding to the gear 33 , the gear 33 is meshedly connected with the corresponding rack 34 , and the teeth of the two racks 34 along the length direction of the pushing device are arranged in opposite directions.
[0041] Since the first limit module 3 is located at both ends of the pusher device 2 in the length direction and is connected to the four corners of the frame 1 through the gear 33 and the rack 34, the shaking of the pusher device 2 in the length direction can be limited, and the first level of anti-fall protection can be provided by relying on the self-locking performance of the gear.
[0042] The second limiting module 4 includes a telescopic unit 41 and an inserting strip 43 .
[0043] The telescopic unit 41 is mounted on the pushing device 2 via a first mounting plate 42 and is arranged close to the gear 33 .
[0044] The inserting bar 43 is arranged vertically beside the rack 34 and is located at the outer side thereof when viewed along the length direction. A plurality of inserting holes are provided on the inserting bar 43 for the telescopic rod of the telescopic unit 41 to be inserted into.
[0045] The telescopic unit 41 may adopt a pneumatic cylinder, which is convenient for workshop layout.
[0046] The second limiting module 4 mainly provides a second level of anti-fall protection by plugging and connecting the telescopic unit 41 with the inserting strip 43 to prevent the first limiting module 3 from suddenly losing power or the gear 33 from slipping.
[0047] See also Figure 2 The transmission shaft 32 of the first limit module 3 is driven to rotate by the power unit 31, and the power unit 31 is installed on the pushing device 2. The power unit 31 can share one with the pushing device 2, which can drive the pushing device 2 to push the material to move, and can also drive the transmission shaft 32 to rotate, which can be achieved by gear 33 or sprocket transmission.
[0048] As a preferred solution, each gear 33 is connected to a transmission shaft 32, and multiple transmission shafts 32 are arranged in parallel and synchronously driven by a motor through a bevel gear transmission plus a multi-stage transmission. Figure 2 Synchronous transmission is a prior art and will not be described in detail here.
[0049] Mounting seats 21 are respectively provided at both ends of the pushing device 2 in the length direction, and the mounting seats 21 are arranged along the width direction of the pushing device 2. The first limiting module 3 is arranged on the upper part of the mounting seat 21, and the second limiting module 4 is arranged on the side of the mounting seat 21, which not only frees up space for installing the limiting module, but also facilitates the arrangement of the rack 34 and the insertion strip 43.
[0050] Preferably, the arrangement direction of the telescopic unit 41 is parallel to the transmission shaft 32 .
[0051] In order to facilitate on-site assembly and adjustment, an opening is provided on the side of the first mounting plate 42, through which the telescopic unit 41 can be inserted and the mounting position can be adjusted.
[0052] Correspondingly, the insertion hole of the insertion strip 43 is a U-shaped hole, and the opening faces one side of the rack 34. In this way, a certain amount of adjustment space is reserved on both the first mounting plate 42 and the insertion strip 43, so as to facilitate the on-site assembly of the second limit module 4.
[0053] See also Figure 5 As another embodiment, the anti-fall structure also includes a third limiting module 5, which can limit the shaking of the pushing device 2 in the width direction, and specifically includes a roller 52. The roller 52 is installed on the pushing device 2 through the second mounting plate 51 and is located below the second limiting module 4. The axial direction of the roller 52 is perpendicular to the arrangement direction of the telescopic unit 41, and the outer surface contacts the outer surface of the rack 34 and the insert 43.
[0054] To ensure that the roller 52 rolls smoothly in the vertical direction, the outer surfaces of the rack 34 and the inserting strip 43 are flush.
[0055] In this way, when the pushing device 2 moves up and down, the roller 52 of the third limiting module 5 rolls against the outer surface of the rack 34 and the insert 43. When reaching the specified position, it will prevent the pushing device 2 from being displaced in the width direction, thereby ensuring the stable operation of the pushing device 2.
Claims
1. An elevator anti-falling structure, installed on the frame (1) of the elevator, characterized in that: The elevator comprises a material pushing device (2) for pushing materials on the elevator out of the elevator, wherein the material pushing device (2) is arranged along the length direction of the frame (1), and further comprises: The first limit module (3) is located at both ends of the pusher device (2) in the length direction, and comprises a transmission shaft (32), a gear (33) and a rack (34); The transmission shaft (32) is arranged along the width direction of the pushing device (2), and gears (33) are installed at the ends of both ends; The frame (1) is provided with a vertically arranged rack (34) at a position corresponding to the gear (33), and the gear (33) is meshingly connected with the corresponding rack (34); A second limiting module (4), comprising a telescopic unit (41) and an inserting strip (43); The telescopic unit (41) is mounted on the material pushing device (2) via a first mounting plate (42) and is arranged close to the gear (33); The inserting strip (43) is arranged vertically beside the rack (34) and has a plurality of inserting holes thereon for the telescopic rod of the telescopic unit (41) to be inserted.
2. The anti-falling structure for an elevator according to claim 1, characterized in that: The frame (1) is a rectangular frame (1), and vertically arranged connecting frames are respectively provided at the four corners. Two transmission mechanisms are provided at both ends of the length direction of the frame (1) for conveying materials to the bottom of the pushing device (2).
3. The anti-falling structure for an elevator according to claim 2, characterized in that: The pushing device (2) is arranged horizontally.
4. The anti-falling structure for an elevator according to claim 3, characterized in that: The transmission shaft (32) is driven to rotate by a power unit (31), and the power unit (31) is installed on the material pushing device (2).
5. The anti-falling structure for an elevator according to claim 1, characterized in that: Mounting seats (21) are respectively arranged at both ends of the pusher device (2) in the length direction, and the mounting seats (21) are arranged along the width direction of the pusher device (2). The first limit module (3) is arranged on the upper part of the mounting seat (21), and the second limit module (4) is arranged on the side of the mounting seat (21).
6. The anti-falling structure for an elevator according to claim 1, characterized in that: The arrangement direction of the telescopic unit (41) is parallel to the transmission shaft (32).
7. The anti-falling structure for an elevator according to claim 1, characterized in that: The first mounting plate (42) is provided with an opening on the side thereof, into which the telescopic unit (41) can be inserted and the mounting position can be adjusted.
8. The anti-falling structure for an elevator according to claim 7, characterized in that: The insertion hole of the insertion strip (43) is a U-shaped hole, with the opening facing one side of the rack (34).
9. An elevator anti-falling structure according to any one of claims 1 to 8, characterized in that: The outer surfaces of the rack (34) and the insert (43) are flush.
10. The anti-falling structure for an elevator according to claim 9, characterized in that: It also includes a third limiting module (5), including a roller (52), the roller (52) being mounted on the pushing device (2) via a second mounting plate (51) and being located below the second limiting module (4), the roller (52) being axially perpendicular to the arrangement direction of the telescopic unit (41), and having an outer surface in contact with the outer surfaces of the rack (34) and the insert (43).