A guide mechanism for an elevator

Abstract

The utility model relates to the technical field of lift, disclose a kind of guide mechanism of lift, including left and right two slide bars and the slider between two slide bars, the surface of the side of slide bar close to slider is equipped with sliding slot, and the front and rear two side surfaces of slide bar are evenly provided with fixed mechanism, the left and right side surfaces of slider are evenly provided with connecting mechanism;The utility model replaces traditional sliding friction guide mode by adopting multiple groups of rolling contact structure, and the design converts sliding friction into rolling friction, effectively reduces the friction resistance when the guide mechanism operates, not only reduces mechanical wear, but also significantly reduces the noise generated during operation;Adopt spring pre-tightening type connecting structure to replace traditional bolt fixing mode, through the separable design of elastic connecting plate and slider, the guide mechanism forms modular assembly unit;Only need to press connecting plate compression spring to realize the overall disassembly of guide mechanism when maintaining.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically a guide mechanism for an elevator. Background Technology

[0002] Worm gear screw jacks can be widely used in various industries such as machinery, metallurgy, construction, chemical industry, medical, culture and health. They can accurately control and adjust the lifting or pushing height according to a certain program. They can be driven directly by an electric motor or other power source, or manually. However, existing lifting platforms lack a guiding mechanism, causing the screw to rotate continuously, which in turn drives the nut to move up and down on the screw to achieve the lifting function. In actual operation, if rotation occurs during the lifting process, it is not conducive to lifting the material and the stability of the material lifting process cannot be controlled.

[0003] Chinese patent discloses a guide mechanism for a screw jack (authorization announcement number CN216471986U). This patented technology uses a guide mechanism to limit and guide the nut when the jack is lifting, so that the nut can only move up and down on the screw and cannot rotate. This is beneficial for lifting materials and can effectively control the stability of the materials during the lifting process. The top plate and connecting mechanism are used to cooperate with the screw and rotating rod. The whole device is simple to install and easy to disassemble and replace.

[0004] However, it has certain drawbacks: Firstly, the sliding friction between the guide bar and the slide groove leads to high running resistance and increased mechanical wear. After long-term use, it is easy to cause increased noise, jamming, or even guide failure. Especially under frequent start-stop or high-load conditions, the frictional heat further accelerates the aging of the components. Secondly, the upper and lower mounting blocks are fixed together by bolts, requiring them to be disassembled one by one during assembly and disassembly. This makes the maintenance process cumbersome and time-consuming, and may even require special tools, resulting in extended equipment downtime and high maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to provide a guide mechanism for an elevator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A guide mechanism for an elevator includes two sliding rods (left and right) and a slider located between the two sliding rods. A groove is formed on the surface of each sliding rod near the slider, and fixing mechanisms are provided on both the front and rear surfaces of the sliding rods. Connecting mechanisms are provided on both the left and right surfaces of the slider. Each connecting mechanism includes a connecting seat. Multiple rollers (first type) are rotatably embedded in and connected to the upper and lower surfaces of the connecting seat from front to back, and multiple rollers (second type) are rotatably embedded in and connected to the surface of the connecting seat near the sliding rods from front to back. A connecting member is provided inside the connecting seat.

[0007] As a further embodiment of this utility model: the fixing mechanism includes a fixing block, and a fixing bolt is movably connected inside the fixing block.

[0008] As a further embodiment of this utility model: the connector includes a connecting plate, and a plurality of springs are fixedly connected to one end of the connecting plate located inside the connecting seat.

[0009] As a further embodiment of this utility model: the first roller on the upper and lower sides is movably attached to the upper and lower surfaces of the inner side of the slide groove, and the second roller is movably attached to one side surface of the inner side of the slide groove.

[0010] As a further improvement of this utility model, the fixing block is fixed to one side surface of the slide rod.

[0011] As a further embodiment of this utility model: the connecting plate is slidably connected to the inside of the connecting seat, and one end of the connecting plate located outside the connecting seat is movably embedded in one side surface of the slider, and the end of the spring away from the connecting plate is fixed to one side surface of the inside of the connecting seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model replaces the traditional sliding friction guiding method with multiple sets of rolling contact structures. Rotatable roller assemblies are respectively set on the upper and lower surfaces and side walls of the slide groove, and multi-directional limiting is achieved through the rolling contact between the rollers and the slide groove. This design transforms sliding friction into rolling friction, effectively reducing the frictional resistance during the operation of the guiding mechanism. This not only reduces mechanical wear but also significantly reduces noise generated during operation, making the lifting action smoother and more stable. Especially in long-term continuous operation scenarios, this structure can maintain a stable low-noise operating state, avoiding the jamming and abnormal noise problems caused by increased friction in traditional guiding mechanisms.

[0013] 2. This utility model adopts a spring pre-tightening connection structure to replace the traditional bolt fixing method. Through the separable design of the elastic connecting plate and the slider, the guide mechanism forms a modular assembly unit. During maintenance, the guide mechanism can be completely disassembled simply by pressing the connecting plate to compress the spring, completely eliminating the tedious operation of disassembling each bolt individually in the traditional technology. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a guide mechanism for an elevator; Figure 2 This is a schematic diagram of the actual installation of a guide mechanism for an elevator. Figure 3 This is a schematic diagram of the slider in the guide mechanism of an elevator; Figure 4 This is a schematic diagram of the connecting mechanism in the guide mechanism of an elevator; Figure 5 This is a partial sectional view of the connecting mechanism in the guide mechanism of an elevator.

[0015] In the diagram: 1. Slide rod; 2. Slider; 3. Slide groove; 4. Fixing mechanism; 5. Fixing block; 6. Fixing bolt; 7. Connecting mechanism; 8. Connecting seat; 9. Roller one; 10. Roller two; 11. Connecting piece; 12. Connecting plate; 13. Spring; 14. Lead screw; 15. Seat bearing; 16. Slide seat. Detailed Implementation

[0016] Please see Figures 1-5 In this embodiment of the utility model, a guide mechanism for an elevator includes two left and right slide rods 1 and a slider 2 located between the two slide rods 1. A slide groove 3 is provided on the side surface of the slide rod 1 near the slider 2, and a fixing mechanism 4 is provided on both the front and rear sides of the slide rod 1. The fixing mechanism 4 includes a fixing block 5, which is fixedly connected to one side surface of the slide rod 1. A fixing bolt 6 is movably connected through the inside of the fixing block 5. The lead screw 14 is located in the middle of the slide block 16. Both ends of the lead screw 14 are equipped with seat bearings 15. The seat bearings 15 are mounted on the slide block 16 and the lead screw 14 is driven to rotate by the drive device (motor). The slider 2 is threaded onto the outside of the lead screw 14, and the fixing bolt 6 is threaded into the inside of the slide block 16, thereby fixing the slider 1. The two sliders 1 are located on the left and right sides of the slide block 16 respectively. Both sides of the slider 2 are provided with connecting mechanisms 7. The connecting mechanism 7 includes a connecting seat 8. Multiple rollers 9 are rotatably connected to the upper and lower sides of the connecting seat 8 from front to back. The upper and lower rollers 9 are movably attached to the upper and lower sides of the inner surface of the slide groove 3. Multiple rollers 10 are rotatably connected to the side surface of the connecting seat 8 near the slider 1 from front to back. The rollers 10 are movably attached to the side surface of the inner surface of the slide groove 3. A connecting member 11 is provided inside the connecting seat 8. The connecting member 11 includes a connecting plate 12. The connecting plate 12 is slidably connected to the inside of the connecting seat 8. The end of the connecting plate 12 located outside the connecting seat 8 is movably embedded in the side surface of the slider 2. Multiple springs 13 are fixedly connected to the end of the connecting plate 12 located inside the connecting seat 8. The end of the spring 13 away from the connecting plate 12 is fixedly connected to the side surface of the inner surface of the connecting seat 8. The connecting plates 12 in the two connecting mechanisms 7 are respectively movably embedded in the left and right sides of the slider 2; The connecting mechanism 7 guides the slider 2 so that the slider 2 does not rotate when the lead screw 14 rotates; When the connecting seat 8 slides inside the slide rod 1, the first roller 9 and the second roller 10 will rotate accordingly, thereby reducing the friction between the connecting seat 8 and the slide rod 1 and avoiding noise and jamming during long-term operation when the connecting seat 8 contacts the slide rod 1. Pushing the connecting plate 12 to compress the spring 13 allows the entire connecting mechanism 7 to be removed for easy maintenance.

[0017] The working principle of this utility model is as follows: When the driving device drives the lead screw 14 to rotate, the slider 2, which is threaded onto the outside of the lead screw 14, moves axially. At this time, the connecting plates 12 embedded on the left and right sides of the slider 2 restrict the slider 2 to rotate with the lead screw 14 through the elastic connection of the spring 13. The connecting seat 8 makes rolling contact with the upper and lower surfaces of the slide groove 3 through the two sets of rollers 19, while the rollers 20 make rolling contact with the inner side wall of the slide groove 3, so as to achieve low friction guidance. When maintenance is required, the connecting mechanism 7 can be completely disassembled from the slider 2 by pressing the connecting plate 12 to compress the spring 13.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A guide mechanism for an elevator, comprising two left and right slide bars (1) and a slider (2) located between the two slide bars (1), characterized in that, The slide bar (1) has a groove (3) on the side surface near the slider (2), and the front and rear sides of the slide bar (1) are provided with fixing mechanisms (4). The left and right sides of the slider (2) are provided with connecting mechanisms (7). The connecting mechanism (7) includes a connecting seat (8). Multiple rollers (9) are rotatably connected to the upper and lower sides of the connecting seat (8) from front to back. Multiple rollers (10) are rotatably connected to the side surface of the connecting seat (8) near the slide bar (1) from front to back. A connecting member (11) is provided inside the connecting seat (8).

2. The guide mechanism of an elevator according to claim 1, characterized in that, The fixing mechanism (4) includes a fixing block (5), and a fixing bolt (6) is movably connected inside the fixing block (5).

3. The guide mechanism of an elevator according to claim 1, characterized in that, The connector (11) includes a connecting plate (12), and one end of the connecting plate (12) located inside the connecting seat (8) is fixedly connected with a plurality of springs (13).

4. The guide mechanism of an elevator according to claim 1, characterized in that, The first roller (9) on the upper and lower sides is movably attached to the upper and lower surfaces inside the groove (3), and the second roller (10) is movably attached to one side surface inside the groove (3).

5. The guide mechanism of an elevator according to claim 2, characterized in that, The fixing block (5) is fixed to one side surface of the slide bar (1).

6. The guide mechanism of an elevator according to claim 3, characterized in that, The connecting plate (12) is slidably connected to the inside of the connecting seat (8), and one end of the connecting plate (12) located outside the connecting seat (8) is movably embedded in one side surface of the slider (2). The end of the spring (13) away from the connecting plate (12) is fixed to one side surface of the inside of the connecting seat (8).

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