An elevator limiter mechanism that is easy to install

CN224691762UActive Publication Date: 2026-08-28武汉市水务建设工程有限公司
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Patent Information

Application Number
CN202521926370.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-08-28
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

[0003]但是限位组件缺乏精准定位装置,需反复试验才能确定限位位置,安装效率低,限位板与限位槽的配合可能因加工误差或磨损导致限位不准确,影响升降机安全性

Benefits of technology

[0015]本实用新型,通过设置的定位组件,转动螺纹管中的调节螺杆,带动挡板向下移动,进而带动限位块沿限位孔向下移动,通过刻度线观察限位块的位置,直至调整到合适位置,此时丝杆上升,带动抱箍上升,进而带动限位板上升,而限位板上的橡胶垫上升到与挡板贴合后,此时丝杆上设备高度正好是需要的高度,该设置,可实现限位位置的可视化精确调整,无需反复试错,大幅提升安装效率,同时可适应不同高度的限位需求,增强机构对复杂工况的适配性。

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Abstract

The utility model discloses an elevator limiting mechanism convenient to installation, including limiting component, the limiting component includes casing, limiting groove, hoop and limiting plate, limiting groove is fixed in the casing outside side, and the hoop is connected in the lower extreme of casing internal screw rod, and the limiting plate is fixed in the middle part of hoop side edge, positioning assembly, positioning assembly includes threaded tube, adjusting screw rod, baffle, limiting block and limiting hole, threaded tube is fixed in the middle part of limiting groove upper end, and with limiting groove inside intercommunication, and adjusting screw rod is screwed in threaded tube, and baffle rotation is connected in adjusting screw rod lower extreme, and limiting block is fixed in baffle both ends, and limiting hole is set up in limiting groove upper end both sides, and limiting block is inserted in limiting hole. The utility model discloses through being provided with positioning assembly, can realize the visual accurate adjustment of limiting position, need not repeatedly try and mistake, and the installation efficiency is improved greatly, can adapt to the limiting demand of different height simultaneously, and the adaptability of mechanism to complex working condition is enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator limit mechanism that is easy to install. Background Technology

[0002] A screw jack is a mechanical transmission device that converts rotary motion into linear motion, achieving lifting by the helical engagement of a screw and a nut. The screw jack's limiting mechanism prevents the screw from slipping out of the device and prevents the mounting base at the top of the screw from hitting the housing when it falls.

[0003] However, the limit components lack precise positioning devices, requiring repeated trials to determine the limit position, resulting in low installation efficiency. Furthermore, the fit between the limit plate and the limit groove may be inaccurate due to machining errors or wear, affecting the safety of the elevator. Therefore, a lift limit mechanism that is easy to install is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an easy-to-install lifting platform limiting mechanism to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a lifting platform limiting mechanism that is easy to install, comprising:

[0006] A limiting assembly, comprising a housing, a limiting groove, a clamp, and a limiting plate, wherein the limiting groove is fixed to the outer side of the housing and communicates with the interior of the housing, the clamp is clamped to the lower end of the lead screw inside the housing, and the limiting plate is fixed to the middle of the side of the clamp.

[0007] The positioning component includes a threaded tube, an adjusting screw, a baffle, a limiting block, and a limiting hole. The threaded tube is fixed to the middle of the upper end of the limiting groove and communicates with the inside of the limiting groove. The adjusting screw is screwed into the threaded tube. The baffle is rotatably connected to the lower end of the adjusting screw. The limiting block is fixed to both ends of the baffle. The limiting hole is opened on both sides of the upper end of the limiting groove, and the limiting block is inserted into the limiting hole.

[0008] Furthermore, the positioning component also includes scale lines, which are engraved on the side of the limiting hole.

[0009] Furthermore, the limiting assembly also includes a reinforcing plate and a rubber pad. The reinforcing plate is fixed to the limiting plate and the clamp and is located in the middle of the upper and lower ends of the limiting plate. The rubber pad is fixed on the upper and lower sides of the middle of the end of the limiting plate away from the clamp.

[0010] Furthermore, the other end of the limiting plate, away from the clamp, is movably connected within the limiting groove and is located below the baffle.

[0011] Furthermore, the rubber pads are movably connected in the grooves, and the rubber pad located at the upper end of the limiting plate is movably connected to the lower end of the baffle.

[0012] Furthermore, it also includes a damage prevention component, which includes a spring post and a groove. The spring post is fixed on the upper and lower sides of the middle of the end of the limiting plate away from the clamp, and the groove is opened at the lower end of the baffle.

[0013] Furthermore, the rubber pads are respectively fixed on the movable ends of the spring columns, and the movable ends of the spring columns above the limiting plate and the rubber pads are movably connected in the groove.

[0014] This utility model has the following beneficial effects:

[0015] This invention utilizes a positioning component to rotate the adjusting screw in the threaded tube, causing the baffle to move downwards. This, in turn, causes the limiting block to move downwards along the limiting hole. The position of the limiting block can be observed through the scale line until it is adjusted to the appropriate position. At this point, the lead screw rises, causing the clamp to rise, which in turn causes the limiting plate to rise. Once the rubber pad on the limiting plate rises and is in contact with the baffle, the height of the equipment on the lead screw is exactly the required height. This design allows for visual and precise adjustment of the limiting position, eliminating the need for repeated trial and error and significantly improving installation efficiency. It can also adapt to different height limiting requirements, enhancing the mechanism's adaptability to complex working conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the position of the limiting hole in this utility model;

[0019] Figure 3 This is a schematic diagram of the clamp and limiting plate structure of this utility model;

[0020] Figure 4 This is a first-view structural diagram of the adjusting screw and baffle of this utility model;

[0021] Figure 5 This is a schematic diagram of the adjusting screw and baffle structure from a second perspective.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 10. Housing; 11. Limiting groove; 12. Clamp; 13. Limiting plate; 14. Reinforcing plate; 15. Rubber pad; 20. Threaded tube; 21. Adjusting screw; 22. Baffle; 23. Limiting block; 24. Limiting hole; 25. Scale line; 30. Spring post; 31. Groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Please see Figure 1-5 As shown, this utility model is a lifting platform limiting mechanism that is easy to install, comprising:

[0027] The limiting assembly includes a housing 10, a limiting groove 11, a clamp 12, and a limiting plate 13. The limiting groove 11 is fixed to the outer side of the housing 10 and communicates with the inside of the housing 10. The clamp 12 is clamped to the lower end of the lead screw inside the housing 10. The limiting plate 13 is fixed to the middle of the side of the clamp 12.

[0028] The limiting assembly also includes a reinforcing plate 14 and a rubber pad 15. The reinforcing plate 14 is fixed on the limiting plate 13 and the clamp 12 and is located in the middle of the upper and lower ends of the limiting plate 13. The rubber pad 15 is fixed on the upper and lower sides of the middle of the end of the limiting plate 13 away from the clamp 12.

[0029] The other end of the limiting plate 13, away from the clamp 12, is movably connected to the limiting groove 11 and is located below the baffle 22;

[0030] The housing 10 provides support and protection, the limiting groove 11 provides a limiting function, the clamp 12 provides a connecting function and is used to fix the limiting plate 13. The limiting plate 13 provides a limiting function, the reinforcing plate 14 provides reinforcement, and the rubber pad 15 can prevent the limiting plate 13 from directly contacting the limiting groove 11.

[0031] The positioning assembly includes a threaded tube 20, an adjusting screw 21, a baffle 22, a limiting block 23, and a limiting hole 24. The threaded tube 20 is fixed to the middle of the upper end of the limiting groove 11 and communicates with the inside of the limiting groove 11. The adjusting screw 21 is screwed into the threaded tube 20. The baffle 22 is rotatably connected to the lower end of the adjusting screw 21. The limiting block 23 is fixed to both ends of the baffle 22. The limiting hole 24 is opened on both sides of the upper end of the limiting groove 11, and the limiting block 23 is inserted into the limiting hole 24.

[0032] The positioning component also includes a scale line 25, which is engraved on the side of the limiting hole 24;

[0033] The rubber pad 15 located at the upper end of the limiting plate 13 is movably connected to the lower end of the baffle 22;

[0034] The threaded tube 20 serves as a connection and adjustment mechanism, the adjusting screw 21 serves as an adjustment mechanism, the baffle 22 serves as a positioning mechanism, the limiting block 23 and the limiting hole 24 serve as limiting mechanisms, and the scale line 25 serves as an indicator.

[0035] Working principle:

[0036] Rotate the adjusting screw 21 in the threaded tube 20 to move the baffle 22 downward, which in turn moves the limiting block 23 downward along the limiting hole 24. Observe the position of the limiting block 23 through the scale line 25 until it is adjusted to the appropriate position. At this time, the screw rises, which drives the clamp 12 to rise, which in turn drives the limiting plate 13 to rise. After the rubber pad 15 on the limiting plate 13 rises and fits against the baffle 22, the equipment height on the screw is exactly the required height.

[0037] This step enables precise and visual adjustment of the limit position, eliminating the need for repeated trial and error and significantly improving installation efficiency. It also adapts to limit requirements at different heights, enhancing the mechanism's adaptability to complex working conditions.

[0038] Please see Figure 3 , Figure 5 As shown, this embodiment, based on the above embodiment, further includes:

[0039] The damage prevention component includes a spring post 30 and a groove 31. The spring post 30 is fixed on the upper and lower sides of the middle part of the end of the limiting plate 13 away from the clamp 12, and the groove 31 is opened at the lower end of the baffle 22.

[0040] Rubber pads 15 are fixed on the movable end of spring column 30, and the movable end of spring column 30 above limit plate 13 and rubber pad 15 are movably connected in groove 31;

[0041] Rubber pads 15 are movably connected within grooves 31;

[0042] The spring column 30 can act as a buffer when the limiting plate 13 rises to the baffle 22 or falls to the lowest end of the limiting groove 11, and the groove 31 acts as a positioning device.

[0043] Working principle:

[0044] When the limiting plate 13 rises, it drives the spring column 30 to rise. When the rubber pad 15 at the upper end of the spring column 30 rises into the groove 31, the limiting plate 13 continues to rise, and the movable end of the spring column 30 is compressed until the movable end is completely compressed. After that, the limiting plate 13 stops moving.

[0045] This step can prevent the limiting plate 13 from directly and rigidly impacting the baffle 22 or the lower end of the limiting groove 11, thus avoiding damage to the equipment.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.