Material lifting platform with automatic limiting control function

Abstract

The utility model provides a material lifting platform with an automatic limit control function, which relates to the technical field of lifting platforms, and comprises a top plate, a mounting base, a jacking piece arranged on the upper surface of the mounting base, a first toothed plate fixedly arranged on the lower surface of the top plate, and a clamping arm arranged on one side of the first toothed plate, by means of the self-locking limiting design of the device, accidental sliding and falling of the platform caused by misoperation or mechanical faults are avoided, the risks of goods damage, equipment damage and casualties are reduced, the operation efficiency is greatly improved, manual whole-process monitoring is not needed, and the device is convenient to use, safe and reliable. And accurate and rapid positioning can be realized, the large-scale production requirement is met, and the maintenance frequency and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting platform technology, and in particular to a material lifting platform with automatic limit control. Background Technology

[0002] A lifting platform is a device that raises and lowers the platform by means of a motor or manual operation. It does not require electricity, has a simple structure, and some models are equipped with casters for mobility. It has advantages such as low cost and easy maintenance. Common types include hand-cranked, manual hydraulic, and scissor lifts. It is suitable for light-duty scenarios and temporary handling needs such as small warehouses, shops, and homes, and is especially suitable for environments with low power dependence or limited budgets.

[0003] A search revealed Chinese patent number CN214299081U, which discloses a material lifting platform for transportation. The platform includes a base with four support columns fixedly arranged around its outer perimeter. Each pair of support columns is connected to a connecting plate. Two connecting plates are fixedly connected to the left and right end faces of the base. Two mounting seats are fixedly connected to the center of the top of the base, with a worm gear fixed between each seat. Each mounting seat has a worm wheel fixedly mounted on its top. The design is reasonable, the operation is simple, the lifting platform operates smoothly during lifting, and the structure is stable, thus improving the service life of the device.

[0004] The aforementioned technologies lack automatic limit locking functions, significantly increasing safety risks. When the limit system of these technologies fails, the platform may fall, causing damage to equipment, cargo, or even personal injury. Furthermore, these devices require manual monitoring throughout the entire operation process. Operators must keep a close eye on the equipment's operation, determine the stopping position, and manually lock it. This process is time-consuming, labor-intensive, and prone to positioning deviations due to fatigue or negligence, thus affecting transportation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a material lifting platform with automatic limit control, which can solve the problem that the above-mentioned technology lacks the self-locking function of automatic limit, which significantly increases the safety risk. When the limit system of the above-mentioned technology fails, it will cause the platform to fall, resulting in equipment damage, cargo damage, or even personal injury. In addition, the above-mentioned device requires manual monitoring throughout the operation. The operator needs to keep a close eye on the operation of the equipment, judge the stop position and manually lock it. This is time-consuming, laborious and prone to positioning deviation due to fatigue or negligence, which affects the transportation efficiency.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a material lifting platform with automatic limit control, comprising a top plate and a mounting base, and further comprising:

[0007] A lifting component is disposed on the upper surface of the mounting base;

[0008] The first toothed plate is fixedly disposed on the lower surface of the top plate;

[0009] A locking arm is disposed on one side of the first toothed plate and is used to limit the position of the first toothed plate;

[0010] A pusher is disposed on one side of the mounting base;

[0011] The second toothed plate is fixedly disposed on the lower surface of the top plate;

[0012] The snap-fit ​​strips are located on both sides of the second toothed plate.

[0013] In a preferred embodiment, the lifting member includes:

[0014] The first mounting frame is fixedly disposed on the upper surface of the mounting base, the first toothed plate is slidably disposed on the inner side of the first mounting frame, and the snap-fit ​​arm is connected to the inner side of one end of the first mounting frame;

[0015] The gear is rotated and located inside the end of the first mounting frame to drive the first toothed plate to move vertically.

[0016] The movable groove is located on the inner side of the end of the first mounting frame.

[0017] In a preferred embodiment, a downward pressure handle is provided on the inner side of the actuating gear.

[0018] In a preferred embodiment, a connecting plate is movably connected to the inner side of the end of the snap-fit ​​arm, and a limiting post is fixedly provided on the upper surface of the mounting base. The inner side of the connecting plate is connected to the outer side of the limiting post.

[0019] In a preferred embodiment, a first spring is fixedly disposed on the lower surface of the connecting plate, and one end of the first spring is connected to the lower surface of the mounting base.

[0020] In a preferred embodiment, an anti-slip strip is fixedly provided on the upper surface of the connecting plate, and the anti-slip strip is made of rubber.

[0021] In a preferred embodiment, the pusher includes:

[0022] The second mounting frame is fixedly disposed on the upper surface of the mounting base, and the second toothed plate is slidably disposed on the inner side of the second mounting frame;

[0023] A rotating arm is rotatably mounted on one side of the second mounting frame, and the snap-fit ​​strip is rotatably mounted on the outer sides of both ends of the rotating arm;

[0024] The second spring is fixedly disposed on the outer side of the end of the snap-fit ​​strip.

[0025] In a preferred embodiment, an assisting arm is fixedly provided on one side of the rotating arm, and a connecting arm is fixedly provided on the outer side of the end of the assisting arm.

[0026] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0027] This device significantly enhances safety. Its self-locking limit design on the top plate prevents accidental slippage and falls due to operational errors or mechanical failures, reducing the risk of cargo damage, equipment destruction, and personnel injury. It also greatly improves operational efficiency, eliminating the need for continuous manual monitoring, enabling precise and rapid positioning, adapting to large-scale production needs, reducing maintenance frequency and costs, enhancing system reliability and compliance, meeting modern safety standards, simplifying management processes, and minimizing operational risks associated with manual intervention. It is particularly suitable for industrial and warehousing environments with high safety and efficiency requirements. Attached Figure Description

[0028] Figure 1 A front view structural schematic diagram of a material lifting platform with automatic limit control provided by this utility model;

[0029] Figure 2 A cross-sectional view of the first mounting frame in a material lifting platform with automatic limit control provided by this utility model;

[0030] Figure 3 A schematic diagram of the top plate and mounting base of a material lifting platform with automatic limit control provided by this utility model;

[0031] Figure 4 A cross-sectional view of the second mounting frame in a material lifting platform with automatic limit control provided by this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the rotating arm and the second spring in a material lifting platform with automatic limit control provided by this utility model.

[0033] Legend:

[0034] 1. Top plate; 2. Mounting base; 3. Snap-fit ​​arm; 301. First toothed plate; 302. Actuating gear; 303. Lower pressure handle; 304. First mounting frame; 305. Connecting plate; 306. Movable groove; 307. Limiting post; 308. First spring; 309. Anti-slip strip; 4. Snap-fit ​​strip; 401. Second toothed plate; 402. Rotating arm; 403. Second spring; 404. Assisting arm; 405. Connecting arm; 406. Second mounting frame. Detailed Implementation

[0035] 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.

[0036] Example 1:

[0037] Please see Figures 1-2 This embodiment provides a material lifting platform with automatic limit control that facilitates the lifting and limiting of the top plate 1. The specific idea is as follows:

[0038] The material lifting platform with automatic limit control includes a mounting base 2. In addition, the material lifting platform with automatic limit control also includes a first toothed plate 301 disposed on the lower surface of the top plate 1 for driving the top plate 1 to rise, and locking arms 3 on both sides of the first toothed plate 301 for automatically limiting the first toothed plate 301.

[0039] In order to drive the first toothed plate 301, this embodiment provides a lifting member that can drive the first toothed plate 301 to move in the vertical direction.

[0040] The lifting component includes: a first mounting frame 304 fixedly connected to the upper surface of the mounting base 2. The first mounting frame 304 is a hollow frame structure. A first toothed plate 301 is slidably connected to the inner side of the first mounting frame 304. A gear 302 is rotatably connected to the inner side of one end of the first mounting frame 304. The outer side of the end of the gear 302 meshes with one side of the first toothed plate 301. A pressing handle 303 is rotatably connected to the inner side of the end of the gear 302, facilitating the user to press the gear 302. The other end of the first mounting frame 304 is rotatably connected to the inner side of the first mounting frame 304. A snap-fit ​​arm 3 is dynamically connected. The protrusion on the outer side of one end of the snap-fit ​​arm 3 snaps into one side of the first toothed plate 301. A connecting plate 305 is movably connected to the inner side of the through groove at the end of the snap-fit ​​arm 3. A limiting post 307 is fixedly connected to the upper surface of the mounting base 2. The outer side of the limiting post 307 is slidably connected to the inner side of the connecting plate 305. The limiting post 307 is used to limit the connecting plate 305. A first spring 308 is sleeved on the outer side of the limiting post 307. The outer sides of both ends of the first spring 308 are fixedly connected to one side of the connecting plate 305 and the upper surface of the mounting base 2, respectively.

[0041] The upper surface of the connecting plate 305 is fixedly connected with multiple sets of strip-shaped anti-slip strips 309. The rubber anti-slip strips 309 are used to increase the friction between the connecting plate 305 and the user's foot. Meanwhile, the actuating gear 302 can move to a certain extent inside the movable groove 306 opened on one side of the first mounting frame 304.

[0042] It should be noted that when the locking arm 3 is engaged with the first toothed plate 301, the first toothed plate 301 and the locking arm 3 are not parallel. Instead, the locking arm 3 is tilted at a certain angle toward the first toothed plate 301 to limit the first toothed plate 301.

[0043] In practice, when a user wants to lift the top plate 1 via the first toothed plate 301, the user can press down the lever 303 to actuate the gear 302. As the gear 302 rotates, it causes the first toothed plate 301 to rise vertically, simultaneously pushing the locking arm 3 to rotate outwards. At the same time, under the action of the first spring 308, the locking arm 3 quickly rotates back to its original position, locking onto the inner side of the tooth groove on the other side of the first toothed plate 301 for limiting its movement. The first toothed plate 301 and the locking arm 3 are not parallel; instead, the locking arm 3 faces... The first toothed plate 301 has a certain tilt angle on one side, which increases the stability of the locking arm 3 supporting the first toothed plate 301. The user can pull the actuating gear 302 outward to move it in the movable groove 306, and at the same time rotate the actuating gear 302 to reset it. This process is repeated. When the first toothed plate 301 needs to be lowered vertically, the user only needs to step on the connecting plate 305. The connecting plate 305 drives multiple locking arms 3 to rotate outward. At this time, the actuating gear 302 is pulled again, and the top plate 1 and the first toothed plate 301 can be lowered vertically.

[0044] Example 2:

[0045] Please see Figures 3-5 This embodiment provides another material lifting platform with automatic limit control for lifting and limiting the top plate 1. The specific idea is as follows:

[0046] The material lifting platform with automatic limit control includes a mounting base 2. In addition, the fire damper assist device also includes a second toothed plate 401 disposed on the lower surface of the top plate 1 for driving the top plate 1 to rise. The locking strips 4 on both sides of the second toothed plate 401 are used to automatically limit the second toothed plate 401.

[0047] In order to drive the second toothed plate 401, this embodiment provides a pusher that can drive the second toothed plate 401 to move in the vertical direction.

[0048] The pushing component includes: a second mounting frame 406 fixedly connected to the upper surface of the mounting base 2 for mounting the second toothed plate 401; a rotating arm 402 rotatably connected to one side of the second mounting frame 406; the outer side of the end of the rotating arm 402 rotatably connected to one side of the snap-fit ​​strip 4; a second spring 403 connected to the outer side of the bottom end of the snap-fit ​​strip 4; the second spring 403 connecting the two snap-fit ​​strips 4; the tube of the snap-fit ​​strip 4 passing through the pith on one side of the second mounting frame 406 and snapping with both sides of the second toothed plate 401; an assisting arm 404 fixedly connected to one side of the rotating arm 402; and a connecting arm 405 fixedly connected to the end of the assisting arm 404 for pressing down the assisting arm 404 and driving the rotating arm 402 to rotate.

[0049] In the specific implementation process, when the user wants to lift the top plate 1 through the second toothed plate 401, the user can press down the connecting arm 405 and the assisting arm 404, thereby driving the rotating arm 402 to rotate. While the rotating arm 402 rotates, the locking strip 4 on the side near the connecting arm 405 will move downward a certain distance. At this time, under the action of the second spring 403, the two locking strips 4 are always clamped towards the center. At this time, the locking strip 4 moves to the inside of the tooth groove on the other side of the second toothed plate 401. At this time, the user pulls the assisting arm 404 upward, thereby pushing the second toothed plate 401 to move vertically upward through the locking strip 4, until the locking strip 4 on the side away from the connecting arm 405 also engages in the tooth groove on the other side of the second toothed plate 401. Press down the assisting arm 404 again to drive the second toothed plate 401 to move vertically upward. Repeat this process. When it is necessary to reset the second toothed plate 401, the bottom end of the locking strip 4 is gripped towards the center to disengage the end of the locking strip 4 from the tooth grooves on both sides of the second toothed plate 401.

[0050] Working principle:

[0051] Based on Example 1, when the downward pressure handle 303 drives the actuating gear 302 to rotate and lift the first toothed plate 301, the locking arm 3 automatically rotates outward and quickly resets under the action of the first spring 308, locking into the tooth groove of the first toothed plate 301. Combined with the tilt angle design of the locking arm 3 relative to the first toothed plate 301, a stable limiting effect is provided, effectively preventing the top plate 1 from falling. When it is necessary to lower, stepping on the connecting plate 305 will drive multiple locking arms 3 to rotate outward to release the locking. At this time, pulling the actuating gear 302 moves and rotates back to reset within the movable groove 306, and the top plate 1 and the first toothed plate 301 can then be lowered vertically. The operation process is convenient and smooth, the overall structure is simple and reliable, and there is no need for a complex power system. This ensures safety, lowers the operating threshold, and takes into account practicality and economy, making it suitable for various manual lifting needs.

[0052] Based on Example 2, when a user wants to lift the top plate 1 using the second toothed plate 401, the user can press down the connecting arm 405 and the assisting arm 404, thereby driving the rotating arm 402 to rotate. While the rotating arm 402 rotates, the locking strip 4 on the side near the connecting arm 405 will move downward a certain distance. At this time, under the force of the second spring 403, the two locking strips 4 are always clamped towards the center. At this time, the locking strip 4 moves to the inside of the tooth groove on the other side of the second toothed plate 401. At this time, the user pulls the assisting arm 404 upward, thereby pushing the second toothed plate 401 to move vertically upward through the locking strip 4, until the locking strip 4 on the side away from the connecting arm 405 also engages in the tooth groove on the other side of the second toothed plate 401. Press down the assisting arm 404 again to drive the second toothed plate 401 to move vertically upward. Repeat this process. When it is necessary to reset the second toothed plate 401, the bottom end of the locking strip 4 is gripped towards the center to disengage the end of the locking strip 4 from the tooth grooves on both sides of the second toothed plate 401.

[0053] The device's self-locking limit design prevents the platform from accidentally sliding or falling due to operational errors or mechanical failures, reducing the risk of cargo damage, equipment destruction, and personnel injury. It significantly improves operational efficiency, eliminates the need for continuous manual monitoring, enables precise and rapid positioning, adapts to large-scale production needs, reduces maintenance frequency and costs, enhances system reliability and compliance, meets modern safety standards, simplifies management processes, and reduces operational risks associated with manual intervention. It is particularly suitable for industrial and warehousing scenarios with high safety and efficiency requirements.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A material lifting platform with automatic limiting control, comprising a top plate (1) and a mounting base (2), characterized in that: Also includes: A lifting component is disposed on the upper surface of the mounting base (2); The first toothed plate (301) is fixedly disposed on the lower surface of the top plate (1); A snap-fit ​​arm (3) is disposed on one side of the first toothed plate (301) and is used to limit the first toothed plate (301); A pusher is disposed on one side of the mounting base (2); The second toothed plate (401) is fixedly disposed on the lower surface of the top plate (1); The snap-fit ​​strip (4) is disposed on both sides of the second toothed plate (401).

2. The material lifting platform with automatic limiting control according to claim 1, characterized in that: The lifting component includes: The first mounting frame (304) is fixedly disposed on the upper surface of the mounting base (2), the first toothed plate (301) is slidably disposed on the inner side of the first mounting frame (304), and the snap-fit ​​arm (3) is connected to the inner side of one end of the first mounting frame (304). The gear (302) is rotated and located on the inner side of the end of the first mounting frame (304) to drive the first toothed plate (301) to move vertically; The movable groove (306) is located on the inner side of the end of the first mounting frame (304).

3. The material lifting platform with automatic limiting control according to claim 2, characterized in that: The inner side of the actuating gear (302) is provided with a downward pressure handle (303).

4. The material lifting platform with automatic limiting control according to claim 2, characterized in that: The inner side of the end of the snap-fit ​​arm (3) is movably connected to a connecting plate (305), and a limiting post (307) is fixedly provided on the upper surface of the mounting base (2). The inner side of the connecting plate (305) is connected to the outer side of the limiting post (307).

5. The material lifting platform with automatic limiting control according to claim 4, characterized in that: A first spring (308) is fixedly provided on the lower surface of the connecting plate (305), and one end of the first spring (308) is connected to the lower surface of the mounting base (2).

6. The material lifting platform with automatic limiting control according to claim 4, characterized in that: The upper surface of the connecting plate (305) is fixedly provided with an anti-slip strip (309), and the anti-slip strip (309) is made of rubber.

7. The material lifting platform with automatic limiting control according to claim 1, characterized in that: The pushing component includes: The second mounting frame (406) is fixedly disposed on the upper surface of the mounting base (2), and the second toothed plate (401) is slidably disposed on the inner side of the second mounting frame (406); A rotating arm (402) is rotatably disposed on one side of the second mounting frame (406), and the snap-fit ​​strip (4) is rotatably disposed on the outer sides of both ends of the rotating arm (402); The second spring (403) is fixedly disposed on the outer side of the end of the snap-fit ​​strip (4).

8. The material lifting platform with automatic limiting control according to claim 7, characterized in that: An assisting arm (404) is fixedly provided on one side of the rotating arm (402), and a connecting arm (405) is fixedly provided on the outer side of the end of the assisting arm (404).

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