Supporting mechanism of lifting machine

Abstract

The utility model discloses a supporting mechanism of a lifting machine, which is characterized in that two rotating shafts are rotatably connected in a supporting frame, supporting arms are welded on the rotating shafts, gear discs are welded on the rotating shafts, and limiting mechanisms for limiting the gear discs are respectively arranged at the upper parts and the lower parts of the gear discs; the rear side of the supporting frame is fixedly connected with a supporting frame, and the supporting frame is connected to a stand column of the lifting machine in a sliding mode. According to the utility model, the racks at the upper part and the lower part of the gear disc are meshed with the clamping teeth of the limiting mechanism, so that the swing angle of the supporting arm is locked through accurate mechanical interaction, the smoothness and stability of the action in the lifting process are ensured, collision or structural damage possibly caused by excessive swing of the supporting arm is effectively prevented, and the service life of the supporting arm is prolonged. And the reliability and the safety of operation are obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of support mechanisms, and in particular relates to a support mechanism for a lift. Background Art

[0002] In recent years, lifts, as an indispensable piece of equipment in the automotive repair and manufacturing industries, have seen rapid technological advancement, continuously progressing towards greater efficiency, safety, and stability. Early lifts were mostly hydraulically or pneumatically driven and relatively simple in structure. However, with the increasing diversity in vehicle types and weights, the market has placed higher demands on lifts' load-bearing capacity, stability, and operational flexibility. To meet this demand, support mechanism design has become a key area of ​​technological innovation, aiming to enhance the lift's overall performance through optimized structural design, ensuring safety and reliability during operation.

[0003] Although there have been many attempts to improve the prior art, such as Chinese Utility Model Publication No. CN209338037U, which discloses a lift comprising: a lifting column, a supporting arm provided on the lifting column, the supporting arm being adapted to move in an up-and-down direction along the lifting column, a lift tray being provided at one end of the supporting arm away from the lifting column, the lift tray being adapted to cooperate with a vehicle tray support at a longitudinal beam of a vehicle;

[0004] A first sensor and a second sensor, wherein the first sensor is arranged on the lift tray, and the second sensor is arranged on the vehicle tray, one of the first sensor and the second sensor is a signal receiver and the other is a signal transmitter, the position of the lift tray is adjustable, and the lift tray changes its position based on the inductive cooperation between the first sensor and the second sensor, so that the lift tray can be aligned with the vehicle tray and positioned for support.

[0005] While the aforementioned patent utilizes an intelligent control system to achieve precise positioning, it still has several drawbacks. These include the complex structure that increases maintenance costs, insufficient stability during lifting that can easily cause shaking, and mechanical wear and deformation under long-term heavy-load use.

[0006] The above patented technology has some problems: the main problem is that the stability of the robotic arm is insufficient and the adjusted angle cannot be fixed. Therefore, we propose a support mechanism for the lift. Utility Model Content

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a support mechanism for a lift. By adding a limiting mechanism to the support mechanism of the lift, the support mechanism of the lift can be locked after the angle is adjusted, thereby improving stability.

[0008] The utility model is implemented as follows: a support mechanism of a lift, wherein the internal rotation of the support frame is connected to two rotating shafts, support arms are welded to the rotating shafts, a gear plate is welded to the rotating shaft, and the upper and lower parts of the gear plate are respectively provided with limiting mechanisms for limiting the gear plate, the rear side of the support frame is fixedly connected to a support frame, and the support frame is slidably connected to the column of the lift.

[0009] Optionally, the limiting mechanism is in the shape of a circular ring, a plurality of latching teeth are welded on one side of the limiting mechanism, and racks are provided on the upper and lower parts of the gear plate.

[0010] Optionally, the limiting mechanism is sleeved on the rotating shaft and movably connected thereto, a plug-in plate is welded to one side of the limiting mechanism, and a slot for plugging the plug-in plate is provided on the supporting frame.

[0011] Optionally, an electric cylinder is fixedly connected to the upper plate and the lower plate of the support frame respectively, and the end of the telescopic rod of the electric cylinder is fixedly connected to the limiting mechanism.

[0012] Optionally, the support frame is provided with an opening for the telescopic rod of the electric cylinder to pass through, and the upper part of the support frame is provided with a power switch for controlling the electric cylinder.

[0013] Optionally, a stainless steel sheath is welded on the support arm, and a non-slip rubber pad is fixedly connected to the support arm.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The coordination between the gear plate and the limit mechanism, especially the meshing of the racks on the upper and lower parts of the gear plate with the teeth of the limit mechanism, achieves locking of the swing angle of the support arm through precise mechanical interaction, ensuring smooth and stable movement during the lifting process. It also effectively prevents collisions or structural damage caused by excessive swing of the support arm, significantly improving the reliability and safety of the operation.

[0016] 2. The electric cylinder installed on the support frame is connected to the limit mechanism through a telescopic rod, and the control switch of the electric cylinder is integrated in the upper part of the support frame, realizing electric adjustment of locking or unlocking. This automated control solution greatly simplifies the operation process, reduces the complexity of manual intervention, improves work efficiency, and also enhances the intelligence level of the system.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the support arm provided by the utility model;

[0020] Figure 3 This is a schematic diagram of the bottom of the support frame provided by the present utility model;

[0021] Figure 4 This is a schematic diagram of the limiting mechanism provided by the utility model;

[0022] Figure 5 It is a schematic diagram of the support frame provided by the utility model.

[0023] In the figure: 1. Column; 2. Support frame; 21. Slot; 3. Rotating shaft; 4. Support arm; 41. Stainless steel sheath; 42. Anti-slip rubber pad; 5. Gear plate; 51. Rack; 6. Limiting mechanism; 61. Gear; 62. Insert plate; 63. Electric cylinder; 7. Power switch; 8. Support frame. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0025] like Figures 1 to 5 As shown, an embodiment of the present invention provides a support mechanism for a lift, including a support frame 2, the support frame 2 is internally rotatably connected with two rotating shafts 3, the rotating shafts 3 are welded with support arms 4, the rotating shafts 3 are welded with gear plates 5, the upper and lower parts of the gear plates 5 are respectively provided with limiting mechanisms 6 for limiting the gear plates 5, the rear side of the support frame 2 is fixedly connected with a support frame 8, and the support frame 8 is slidably connected to the column 1 of the lift.

[0026] A support arm 4 and a gear plate 5 are welded to the rotating shaft 3. This structure not only integrates support and transmission functions, but also simplifies the transmission chain through the direct connection between the gear plate 5 and the support arm 4, reducing energy loss and mechanical wear. The innovation of this design lies in that it utilizes the efficiency and accuracy of gear transmission to ensure the synchronization and precision of the rotation of the support arm 4, thereby improving operational efficiency.

[0027] The upper and lower portions of the gear plate 5 are each provided with a limiting mechanism 6 for limiting the position of the gear plate 5. This limiting design is a major highlight of the present invention. Through this limiting mechanism 6, the swing angle of the support arm 4 can be precisely controlled, ensuring stability and safety during operation. This innovative measure effectively solves a series of problems caused by the swing of the support arm 4 during the lifting process in the prior art, thereby improving the reliability and operational safety of the equipment.

[0028] The limiting mechanism 6 is annular in shape, and a plurality of latching teeth 61 are welded on one side of the limiting mechanism 6 . Racks 51 are provided on the upper and lower parts of the gear plate 5 .

[0029] The design of the limiting mechanism 6 utilizes a circular ring-shaped limiting mechanism 6 with several latching teeth 61 welded onto one side, which engage with the racks 51 on the upper and lower portions of the gear plate 5. This design, through the principle of mechanical engagement, ensures that the gear plate 5 is locked when needed, effectively preventing misalignment caused by improper operation and enhancing the stability and safety of the system. The innovation of this limiting mechanism lies in its simple yet effective structural design, which solves the technical challenge of precisely controlling the swing angle of the support arm 4 in conventional lifts.

[0030] The limiting mechanism 6 is sleeved on the rotating shaft 3 and movably connected thereto. A plug plate 62 is welded to one side of the limiting mechanism 6 , and a slot 21 for plugging the plug plate 62 is provided on the supporting frame 2 .

[0031] The limiting mechanism 6 is sleeved on the rotating shaft 3 to realize the movable connection, and the welded plug plate 62 cooperates with the slot 21 on the support frame 2 to realize the limit and prevent the limiting mechanism 6 from moving.

[0032] The upper plate and the lower plate of the support frame 2 are respectively fixedly connected with an electric cylinder 63 , and the end of the telescopic rod of the electric cylinder 63 is fixedly connected to the limiting mechanism 6 .

[0033] Automated limit control driven by electric cylinder 63: Electric cylinder 63, mounted on support frame 2, is connected to limit mechanism 6 via a telescopic rod. Its power switch 7 is integrated into the upper portion of support frame 2, enabling electronic adjustment of locking and unlocking. This automated control solution significantly simplifies the operating process, reduces the complexity of manual intervention, improves work efficiency, and enhances the system's intelligence.

[0034] The support frame 2 is provided with an opening for the telescopic rod of the electric cylinder 63 to pass through, and the upper part of the support frame 2 is provided with a power switch 7 for controlling the electric cylinder 63.

[0035] A stainless steel sheath 41 is welded to the support arm 4 , and a non-slip rubber pad 42 is fixedly connected to the support arm 4 .

[0036] Strengthening and protecting support arm 4: The stainless steel sheath 41 and anti-slip rubber pad 42 welded to support arm 4 not only enhance the arm's resistance to wear and corrosion, but also increase friction with the object being lifted, ensuring a stable grip during the lifting process and preventing the risk of slippage. This minor detail significantly improves operational safety and extends the service life of support arm 4.

[0037] When in use, the support arm 4 is rotated and extended under the chassis of the car. After being rotated to a suitable angle, the electric cylinder 63 is used to drive the limiting mechanism 6 to move it close to the gear plate 5. The locking teeth 61 on the limiting mechanism 6 can be inserted into the gap of the rack 51. At this time, the inserting plate 62 is inserted into the slot 21 on the support frame 2, so that the gear plate 5 and the limiting mechanism 6 cannot rotate. At the same time, the support arm 4 cannot rotate either, thereby preventing it from swinging during use.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support mechanism for a lift, comprising a support frame (2), characterized in that: The support frame (2) is internally rotatably connected with two rotating shafts (3), the rotating shafts (3) are welded with support arms (4), the rotating shafts (3) are welded with gear plates (5), the upper and lower parts of the gear plates (5) are respectively provided with limiting mechanisms (6) for limiting the position of the gear plates (5), the rear side of the support frame (2) is fixedly connected with a support frame (8), and the support frame (8) is slidably connected to the column (1) of the lift.

2. A support mechanism for a lift according to claim 1, characterized in that: The limiting mechanism (6) is in the shape of a circular ring, and a plurality of latching teeth (61) are welded on one side of the limiting mechanism (6). The upper and lower parts of the gear plate (5) are both provided with racks (51).

3. The support mechanism of a lift according to claim 1, characterized in that: The limiting mechanism (6) is sleeved on the rotating shaft (3) and movably connected thereto, a plug plate (62) is welded on one side of the limiting mechanism (6), and a slot (21) for plugging the plug plate (62) is provided on the supporting frame (2).

4. The support mechanism of a lift according to claim 1, characterized in that: The upper plate body and the lower plate body of the support frame (2) are respectively fixedly connected with an electric cylinder (63), and the end of the telescopic rod of the electric cylinder (63) is fixedly connected to the limiting mechanism (6).

5. The support mechanism of a lift according to claim 4, characterized in that: The support frame (2) is provided with an opening for the telescopic rod of the electric cylinder (63) to pass through, and the upper part of the support frame (2) is provided with a power switch (7) for controlling the electric cylinder (63).

6. The support mechanism of a lift according to claim 1, characterized in that: A stainless steel sheath (41) is welded on the support arm (4), and an anti-slip rubber pad (42) is fixedly connected to the support arm (4).

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