High-precision shear type lifting platform

Abstract

The utility model provides a high-precision scissor-type lifting platform which is characterized in that a bearing table, a scissor-type lifting mechanism and a bottom plate are sequentially connected from top to bottom in the vertical direction, and the bottom plate is further provided with a driving assembly for driving the scissor-type lifting mechanism to ascend and descend. A first limiting frame for limiting the position of the sliding end of the bottom of the shear type lifting mechanism is installed on the bottom plate, a second limiting frame for limiting the position of the sliding end of the top of the shear type lifting mechanism is installed at the bottom of the bearing table, and the first limiting frame and the second limiting frame are oppositely arranged. According to the scissor-type lifting platform, accurate ascending and descending of the scissor-type lifting mechanism are achieved through the arrangement of the first limiting frame and the second limiting frame, and meanwhile it can be guaranteed that the scissor-type lifting mechanism can stably complete corresponding lifting operation when ascending and descending through the arrangement of the first limiting frame and the second limiting frame; the shear type platform is simple in structure and beneficial to industrial batch production.

Description

Technical Field

[0001] This utility model belongs to the technical field of lifting platforms, and in particular relates to a high-precision scissor lift platform. Background Technology

[0002] With the development of social science and technology, lifting platforms have become widespread in all aspects of social life and are being used more and more extensively. Scissor lifts are commonly used lifting machinery in factory workshops, and are usually used for the vertical transportation of workpieces, boxes and other items.

[0003] Chinese utility model patent CN220334658U discloses a lifting platform with stable upward movement. The technical solution of this patent sets multiple guide columns on the four sides of the lifting platform, and the guide columns guide the lifting platform to move back and forth vertically. Although this design can guide the up and down movement of the lifting platform, it has the disadvantages of complex structure and high manufacturing cost, which is not conducive to industrial mass production.

[0004] Therefore, a new type of scissor lift platform is needed. Utility Model Content

[0005] The main purpose of this utility model is to provide a high-precision scissor lift platform to address the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-precision scissor lift platform, vertically arranged from top to bottom, includes a support platform, a scissor lift mechanism, and a base plate. The base plate also houses a drive assembly for raising and lowering the scissor lift mechanism.

[0008] A first limiting frame is installed on the base plate to limit the position of the bottom sliding end of the scissor lift mechanism, and a second limiting frame is installed on the bottom of the support platform to limit the position of the top sliding end of the scissor lift mechanism. The first limiting frame and the second limiting frame are arranged opposite to each other.

[0009] As a preferred embodiment of the high-precision scissor lift platform of this utility model, the scissor lift mechanism includes a pair of scissor rod assemblies, each scissor rod assembly including a first lifting rod and a second lifting rod hinged together; the bottom end of the first lifting rod is connected to the base plate via a first rotating shaft, and the top end of the first lifting rod is slidably connected to the second limiting frame via a first slider disposed within the second limiting frame, the second limiting frame being located inside the top ends of the two first lifting rods; the top end of the second lifting rod is connected to the support platform via a second rotating shaft, and the bottom end of the second lifting rod is slidably connected to the first limiting frame via a second slider disposed within the first limiting frame, the first limiting frame being located inside the bottom ends of the two second lifting rods.

[0010] As a preferred embodiment of the high-precision scissor lift platform of this utility model, the top ends of the two first lifting rods are connected by a third rotating shaft, which is set inside the first slider to realize the sliding connection between the first lifting rod and the second limiting frame. The bottom ends of the two second lifting rods are connected by a fourth rotating shaft, which is set inside the second slider to realize the sliding connection between the second lifting rod and the first limiting frame.

[0011] As a preferred embodiment of the high-precision scissor lift platform described in this utility model, the drive assembly includes a push rod and a drive motor for controlling the movement of the push rod, and the push rod is electrically connected to the drive motor.

[0012] As a preferred embodiment of the high-precision scissor lift platform of this utility model, the first limiting frame is provided with a through hole at one end near the drive component, and the second slider is provided with a docking hole at one end near the drive component. The push rod is driven by the drive motor to pass through the through hole and the docking hole in sequence and contact the fourth rotating shaft to drive the bottom end of the second lifting rod to slide along the first limiting frame and realize the lifting of the second lifting rod.

[0013] As a preferred embodiment of the high-precision scissor lift platform described in this utility model, the outer periphery of the push rod is fitted with a protective sleeve.

[0014] As a preferred embodiment of the high-precision scissor lift platform of this utility model, a position sensor is installed on the base plate on the side of the first limiting frame to sense the position change of the bottom end of the second lifting rod sliding along the first limiting frame.

[0015] As a preferred embodiment of the high-precision scissor lift platform described in this utility model, a protective shell is installed at the position where the first limiting frame connects to the drive component.

[0016] Compared with the prior art, the present invention will have at least the following beneficial effects:

[0017] ①The scissor lift platform of this utility model achieves precise lifting and lowering operations of the scissor lift mechanism by setting a first limit frame and a second limit frame.

[0018] ② The setting of the first limit frame and the second limit frame can ensure that the scissor lift mechanism can smoothly complete the corresponding lifting operation when rising and falling.

[0019] ③ The push rod contacts the fourth rotating shaft, that is, the push rod contacts the bottom sliding end of the second lifting rod and pushes the bottom sliding end of the second lifting rod to slide back and forth along the first limiting frame, and drives the top sliding end of the first lifting rod to slide back and forth along the second limiting frame to realize the lifting and lowering of the scissor lifting rod. The movement state of the push rod can be precisely controlled by the drive motor, thereby accurately realizing the lifting and lowering of the scissor lifting mechanism.

[0020] ④ The scissor lift platform of this utility model has a simple structure, is easy to assemble, and is conducive to realizing industrialized mass production. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of the high-precision scissor lift platform of this utility model;

[0023] Figure 2 This is a structural schematic diagram of the high-precision scissor lift platform of this utility model from another perspective;

[0024] Figure 3 This is a cross-sectional view of the high-precision scissor lift platform of this utility model.

[0025] The reference numerals in the figures include:

[0026] 1. Base plate; 2. Scissor lift mechanism; 3. Support platform; 4. First limit frame; 5. Second limit frame; 6. First lifting rod; 7. Second lifting rod; 8. First rotating shaft; 9. First slider; 10. Second rotating shaft; 11. Second slider; 12. Third rotating shaft; 13. Fourth rotating shaft; 14. Drive motor; 15. Push rod; 16. Through hole; 17. Docking hole; 18. Sheath; 19. Position sensor; 20. Protective shell. Detailed Implementation

[0027] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely exemplary embodiments of this utility model, and not the only embodiments.

[0028] like Figures 1 to 3 As shown, the high-precision scissor lift platform is vertically connected from top to bottom with a support platform 3, a scissor lift mechanism 2, and a base plate 1. The base plate 1 is also equipped with a drive assembly for driving the scissor lift mechanism 2 to move up and down. The drive assembly includes a push rod 15 and a drive motor 14 for controlling the movement of the push rod 15. The push rod 15 is electrically connected to the drive motor 14. A first limiting frame 4 is installed on the base plate 1 to limit the position of the bottom sliding end of the scissor lift mechanism 2. A second limiting frame 5 is installed at the bottom of the support platform 3 to limit the position of the top sliding end of the scissor lift mechanism 2. The first limiting frame 4 and the second limiting frame 5 are arranged opposite to each other.

[0029] The first limiting frame 4 and the second limiting frame 5 allow for precise control of the lifting and lowering of the scissor lift mechanism 2. The first limiting frame 4 limits the sliding position of the bottom sliding end of the scissor lift mechanism 2. When the bottom sliding end of the scissor lift mechanism 2 reaches the end of the first limiting frame 4, the sliding position of the bottom sliding end of the scissor lift mechanism 2 reaches its extreme. Correspondingly, the second limiting frame 5 limits the sliding position of the top sliding end of the scissor lift mechanism 2. When the top sliding end of the scissor lift mechanism 2 reaches the end of the second limiting frame 5, the sliding position of the top sliding end of the scissor lift mechanism 2 reaches its extreme. It should be noted that the scissor lift mechanism 2... The bottom sliding end of the scissor lift mechanism 2 and the top sliding end of the scissor lift mechanism 2 slide in the same direction along the corresponding first limit frame 4 and second limit frame 5. When both slide simultaneously along the ends of the first limit frame 4 and the second limit frame 5 (in the direction close to the fixed end of the scissor lift mechanism 2), the scissor lift mechanism 2 rises. Conversely, when both slide simultaneously along the ends of the first limit frame 4 and the second limit frame 5 in opposite directions (away from the fixed end of the scissor lift mechanism 2), the scissor lift mechanism 2 falls. This completes the rising and falling of the scissor lift platform. During this process, the first limit frame 4 and the second limit frame 5 also have the function of making the scissor lift mechanism 2 rise and fall smoothly.

[0030] The scissor lift mechanism 2 includes a pair of scissor rod assemblies, each comprising a first lifting rod 6 and a second lifting rod 7 hinged together. The bottom end of the first lifting rod 6 is connected to the base plate 1 via a first rotating shaft 8, and the top end of the first lifting rod 6 is slidably connected to the second limiting frame 5 via a first slider 9 located within the second limiting frame 5. The second limiting frame 5 is located inside the top ends of the two first lifting rods 6. The top end of the second lifting rod 7 is connected to the support platform 3 via a second rotating shaft 10, and the bottom end of the second lifting rod 7 is slidably connected to the first limiting frame 4 via a second slider 11 located within the first limiting frame 4. The first limiting frame 4 is located inside the bottom ends of the two second lifting rods 7.

[0031] The bottom end of the first lifting rod 6 is fixedly connected to the base plate 1 via the first rotating shaft 8 to form the fixed end of the first lifting rod 6. The top end of the second lifting rod 7 is fixedly connected to the support platform 3 via the second rotating shaft 10 to form the fixed end of the second lifting rod 7. The second limiting frame 5 is set inside the top ends of the two first lifting rods 6 to achieve the purpose of the top ends of the first lifting rods 6 sliding along the second limiting frame 5. The setting of the first slider 9 helps to achieve this purpose. Specifically, the top ends of the two first lifting rods 6 are connected via the third rotating shaft 12. The third rotating shaft 12 is set inside the first slider 9 to achieve the sliding connection between the first lifting rod 6 and the second limiting frame 5. The first limiting frame 4 is set in the two The inner side of the bottom end of the second lifting rod 7 allows the bottom end of the second lifting rod 7 to slide along the first limiting frame 4. The setting of the second slider 11 helps to achieve this purpose. Specifically, the bottom ends of the two second lifting rods 7 are connected by the fourth rotating shaft 13. The fourth rotating shaft 13 is set inside the second slider 11 to realize the sliding connection between the second lifting rod 7 and the first limiting frame 4. In addition, the setting of the first limiting frame 4 located inside the bottom ends of the two second lifting rods 7 and the second limiting frame 5 located inside the top ends of the two first lifting rods 6 has the function of stabilizing the scissor lifting mechanism 2 during lifting operations, preventing the scissor lifting mechanism 2 from tipping over during lifting.

[0032] Furthermore, the first limiting frame 4 has a through hole 16 at one end near the drive component, and the second slider 11 has a docking hole 17 at one end near the drive component. The push rod 15, driven by the drive motor 14, passes through the through hole 16 and the docking hole 17 in sequence and contacts the fourth rotating shaft 13 to drive the bottom end of the second lifting rod 7 to slide along the first limiting frame 4 and realize the lifting and lowering of the second lifting rod 7. This setting can accurately control the lifting and lowering of the scissor lifting mechanism 2. The contact between the push rod 15 and the fourth rotating shaft 13 is the contact between the push rod 15 and the bottom sliding end of the second lifting rod 7, which pushes the bottom sliding end of the second lifting rod 7 to slide back and forth along the first limiting frame 4 and drives the top sliding end of the first lifting rod 6 to slide back and forth along the second limiting frame 5 to realize the lifting and lowering of the scissor lifting rod. The movement state of the push rod 15 can be accurately controlled by the drive motor 14, thereby accurately realizing the lifting and lowering of the scissor lifting mechanism 2.

[0033] The push rod 15 is fitted with a protective sleeve 18 around its outer periphery to protect it, thus preventing external factors from affecting the structure and function of the push rod 15.

[0034] A protective shell 20 is installed at the location where the first limiting frame 4 connects to the drive component. The protective shell 20 is set up to prevent external factors from interfering with the normal operation of the drive component, and to prevent personnel from accidentally touching the drive component and causing physical damage, thereby reducing safety hazards.

[0035] To enhance the monitoring of the sliding position change of the bottom sliding end of the second lifting rod 7 along the first limiting frame 4, a position sensor 19 is installed on the base plate 1 on the side of the first limiting frame 4 to sense the sliding position change of the bottom end of the second lifting rod 7 along the first limiting frame 4. When the sliding position of the bottom sliding end of the second lifting rod 7 along the first limiting frame 4 exceeds the control range, the position sensor 19 issues an alarm, and the drive motor 14 adjusts the movement state of the push rod 15 to ensure the normal lifting and lowering of the scissor lifting mechanism 2.

[0036] The working principle of the scissor lift platform in this embodiment:

[0037] Start the drive motor 14, push rod 15 contacts the fourth rotating shaft 13 and pushes the fourth rotating shaft 13 to slide along the path of the first limiting frame 4, thereby causing the bottom sliding end of the second lifting rod 7 to slide along the path of the first limiting frame 4, and causing the top sliding end of the first lifting rod 6 to slide along the path of the second limiting frame 5. The sliding direction of the top sliding end of the first lifting rod 6 along the second limiting frame 5 is the same as the sliding direction of the bottom sliding end of the second lifting rod 7 along the first limiting frame 4. When both slide simultaneously along the direction of the bottom fixed end of the first lifting rod 6 or the top fixed end of the second lifting rod 7, the scissor lifting mechanism 2 is raised, that is, the scissor lifting platform is raised. When both slide simultaneously along the opposite direction of the bottom fixed end of the first lifting rod 6 or the opposite direction of the top fixed end of the second lifting rod 7, the scissor lifting mechanism 2 is lowered, that is, the scissor lifting platform is lowered.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high-precision scissor lift platform, comprising a support platform (3), a scissor lift mechanism (2), and a base plate (1) arranged vertically from top to bottom, wherein the base plate (1) is further provided with a drive assembly for driving the scissor lift mechanism (2) to lift, characterized in that, The base plate (1) is equipped with a first limiting frame (4) that limits the position of the bottom sliding end of the scissor lift mechanism (2), and the bottom of the support platform (3) is equipped with a second limiting frame (5) that limits the position of the top sliding end of the scissor lift mechanism (2). The first limiting frame (4) and the second limiting frame (5) are arranged opposite to each other.

2. The high-precision scissor lift platform according to claim 1, characterized in that, The scissor lift mechanism (2) includes a pair of scissor rod assemblies, each assembly including a first lifting rod (6) and a second lifting rod (7) hinged together. The bottom end of the first lifting rod (6) is connected to the base plate (1) via a first rotating shaft (8), and the top end of the first lifting rod (6) is slidably connected to the second limiting frame (5) via a first slider (9) located within the second limiting frame (5). The second limiting frame (5) is located inside the top ends of the two first lifting rods (6). The top end of the second lifting rod (7) is connected to the support platform (3) via a second rotating shaft (10), and the bottom end of the second lifting rod (7) is slidably connected to the first limiting frame (4) via a second slider (11) located within the first limiting frame (4). The first limiting frame (4) is located inside the bottom ends of the two second lifting rods (7).

3. The high-precision scissor lift platform according to claim 2, characterized in that, The top ends of the two first lifting rods (6) are connected by a third rotating shaft (12), which is set inside the first slider (9) to achieve a sliding connection between the first lifting rod (6) and the second limiting frame (5). The bottom ends of the two second lifting rods (7) are connected by a fourth rotating shaft (13), which is set inside the second slider (11) to achieve a sliding connection between the second lifting rod (7) and the first limiting frame (4).

4. The high-precision scissor lift platform according to claim 3, characterized in that, The drive assembly includes a push rod (15) and a drive motor (14) for controlling the movement of the push rod (15), wherein the push rod (15) is electrically connected to the drive motor (14).

5. The high-precision scissor lift platform according to claim 4, characterized in that, The first limiting frame (4) has a through hole (16) at one end near the driving component, and the second slider (11) has a docking hole (17) at one end near the driving component. The push rod (15) passes through the through hole (16) and the docking hole (17) in sequence by the drive motor (14) and contacts the fourth rotating shaft (13) to drive the bottom end of the second lifting rod (7) to slide along the first limiting frame (4) and realize the lifting of the second lifting rod (7).

6. The high-precision scissor lift platform according to claim 4, characterized in that, The outer periphery of the push rod (15) is fitted with a protective sleeve (18).

7. The high-precision scissor lift platform according to claim 2, characterized in that, A position sensor (19) is installed on the base plate (1) on the side of the first limiting frame (4) to sense the position change of the bottom end of the second lifting rod (7) sliding along the first limiting frame (4).

8. The high-precision scissor lift platform according to claim 1, characterized in that, A protective shell (20) is installed at the position where the first limiting frame (4) is connected to the driving component.

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