Walking-assisting shear fork lifting platform

Abstract

The utility model relates to an auxiliary walking scissors fork lifting platform which comprises a lifting platform frame, a scissors fork lifting platform body and an adjustable rear wheel structure, an electric forklift capable of conducting auxiliary movement is installed on the left side face of the lifting platform frame, and a supporting structure capable of improving supporting safety is arranged on the upper end face of the lifting platform frame. The mounting plate is mounted on the upper side face of the lifting table frame, first square groove holes are symmetrically formed in the surface of the mounting plate, a second square groove hole is formed in the middle of the surface of the mounting plate, guide rails are arranged on the inner side faces of the first square groove holes, movable connecting plates are mounted on the guide rails, and hydraulic supporting legs are mounted on the front side faces of the movable connecting plates. Travel switches are mounted on two sides of the first square slot on the surface of the mounting plate; and the electric forklift runs to drive the hydraulic legs to move along the transverse direction of the guide rails and contact with the travel switches. The lifting platform solves the problems that an existing lifting platform is strenuous to move by a single person, and when an electric forklift is used for assisting, the platform supporting stability is poor, and the platform safety is affected.

Description

Technical Field

[0001] This utility model relates to the field of scissor lift platform technology, specifically a scissor lift platform for auxiliary walking. Background Technology

[0002] Hydraulic scissor lift platforms are widely used platform lifting equipment that can lift the platform to a certain height for manual operation, workpiece transfer, and other functions. However, traditional scissor lift platforms generally have the disadvantages of inconvenient platform movement and insufficient human pulling force when moving the platform, requiring the assistance of external force.

[0003] Therefore, in order to move the platform without external assistance, an electric forklift is used to provide power, facilitating the movement of the lifting platform. However, another problem was discovered during operation: the working area of ​​the lifting platform cannot be guaranteed to be on a relatively flat surface. Therefore, the lifting platform is supported by a support to maintain its stability. However, when the electric forklift is running, the support legs need to be retracted first. During the retraction process, the platform may tilt due to uneven ground, affecting safety. However, existing lifting platforms do not have a support that can move while the electric forklift is running and automatically retract after moving a certain distance, making operation inconvenient. Secondly, when the electric forklift is running, the platform will also shake due to the initial inertia of the electric forklift, thus creating a safety hazard and failing to effectively maintain the stability of the platform at the beginning of movement.

[0004] Therefore, in order to solve the above-mentioned technical problems and enable the support part of the electric forklift to move a certain distance when it starts up and then automatically retract, so that the platform will not shake due to inertial force when the electric forklift starts to move, thus affecting the stability and safety of the platform, a scissor lift platform with auxiliary walking is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a scissor lift platform that assists in movement. This solves the problems of existing lift platforms where it is difficult for a single person to move the platform, and where the platform's stability is poor and affects its safety when assisted by an electric forklift.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a scissor lift platform for assisted movement, comprising a lifting platform frame, a scissor lift platform, and an adjustable rear wheel structure. The scissor lift platform is installed on the upper end of the lifting platform frame. Adjustable rear wheels are installed on both the front and rear sides of the lifting platform frame. An electric forklift for assisted movement is installed on the left side of the lifting platform frame. A support structure for improving support safety is provided on the upper surface of the lifting platform frame. This support structure includes a mounting plate, a guide rail, a limit switch, a movable connecting plate, and hydraulic outriggers. The mounting plate is installed on the upper side of the lifting platform frame, and a first square slot is symmetrically opened on the surface of the mounting plate. A second square slot is opened in the middle of the surface of the mounting plate. A guide rail is provided on the inner side of the first square slot. A movable connecting plate is installed on the guide rail. Hydraulic outriggers are installed on the front side of the movable connecting plate. Limit switches are installed on both sides of the first square slot on the surface of the mounting plate. When the electric forklift runs, it drives the hydraulic outriggers to move laterally along the guide rail and contact the limit switches.

[0007] Furthermore, the surface of the movable connecting plate is symmetrically provided with a third square slot, wherein the distance 'a' between the left side of the third square slot and the right side of the second square slot is greater than the distance 'a' between the right side of the hydraulic outrigger and the left side of the limit switch.

[0008] Furthermore, a second hydraulic cylinder is also installed on the front end face of the movable connecting plate. The telescopic end of the second hydraulic cylinder passes through the second square slot, and a clamping plate is installed at the end of the telescopic end.

[0009] As a preferred technical solution, a mounting frame is installed on the right side of the lifting platform frame, and a hydraulic power unit that provides power to the hydraulic outriggers and the second oil cylinder is provided on the upper end of the mounting frame.

[0010] Furthermore, the adjustable rear wheel structure includes a fixed plate, a stabilizing plate, a threaded shaft, an adjusting bolt, a connecting plate, and a movable wheel; the fixed plate is installed on the front and rear sides of the lifting platform frame, and a stabilizing plate connected to the side of the lifting platform frame is installed at the lower end of the fixed plate; a threaded shaft is bolted to the surface of the fixed plate; an adjusting bolt is bolted to the surface of the threaded shaft; a connecting plate is connected to the lower end of the threaded shaft; and a movable wheel is installed at the lower end of the connecting plate.

[0011] As a preferred technical solution, the scissor lift platform includes a lifting support rod, a first hydraulic cylinder, and a platform; the lifting support rod is installed on the upper end face of the lifting platform frame, the first hydraulic cylinder is installed on the lifting support rod, and the platform is installed at the upper end of the lifting support rod.

[0012] Compared with the prior art, this utility model provides a scissor lift platform that assists in walking, which has the following beneficial effects:

[0013] 1. This lifting platform uses an electric forklift for auxiliary movement, so that the platform can be moved without external force and can be moved by a single person.

[0014] 2. This lifting platform, through its mounting plate, guide rails, limit switches, movable connecting plate, and hydraulic outriggers, moves the hydraulic outriggers in the direction of the electric forklift's movement when the electric forklift starts running. This causes the hydraulic outriggers to contact the limit switches, and upon contact, the hydraulic outriggers retract. This ensures that the lifting platform is stable at the beginning of the operation of the electric forklift, preventing swaying due to the inertia of the forklift's movement and ensuring platform safety.

[0015] 3. When the platform moves, the second hydraulic cylinder extends outward, causing its clamping plate to disengage from the mounting plate, thus facilitating the movement of the hydraulic outriggers. After the movement is completed and the hydraulic outriggers begin to provide support, the second hydraulic cylinder retracts, causing its clamping plate to contact and clamp the mounting plate, thereby preventing the hydraulic outriggers from moving on the guide rails due to uneven ground, which could affect safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This utility model Figure 1 3D structural diagram;

[0018] Figure 3 This is a schematic diagram of the mounting plate structure of this utility model;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the AA cross-sectional structure;

[0020] Figure 5 This utility model Figure 3 Schematic diagram of the BB cross-section structure;

[0021] Figure 6 This is a schematic diagram of the movable connecting plate structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the adjustable rear wheel structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the scissor lift platform structure of this utility model.

[0024] In the diagram: 1. Lifting platform frame; 2. Electric forklift; 3. Mounting frame; 4. Hydraulic power unit; 5. Mounting plate; 6. Lifting support rod; 7. First hydraulic cylinder; 8. Platform; 9. Adjustable rear wheel structure; 901. Fixed plate; 902. Stabilizing plate; 903. Threaded shaft; 904. Adjusting bolt; 905. Connecting plate; 906. Playing wheel; 10. Guide rail; 11. Limit switch; 12. Moving connecting plate; 13. Hydraulic outrigger; 14. Second hydraulic cylinder; 15. Clamping plate. Detailed Implementation

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] Please see Figure 1-8 This utility model provides the following technical solution: a scissor lift platform for assisted movement, comprising a lifting platform frame 1, a scissor lift platform, and an adjustable rear wheel structure 9. The scissor lift platform is installed on the upper end of the lifting platform frame 1. Adjustable rear wheel structures 9 are installed on both the front and rear sides of the lifting platform frame 1. An electric forklift 2 for assisted movement is installed on the left side of the lifting platform frame 1. A support structure for improving support safety is provided on the upper surface of the lifting platform frame 1. This support structure includes a mounting plate 5, a guide rail 10, a limit switch 11, a movable connecting plate 12, and hydraulic outriggers 13. The mounting plate 5 is installed on the upper side of the lifting platform frame 1, and the surface of the mounting plate 5 is symmetrically provided with first square slots. (See reference...) Figure 5 As can be seen, a second square slot is provided in the middle of the surface of the mounting plate 5, and a guide rail 10 is provided on the inner side of the first square slot. A movable connecting plate 12 is mounted on the guide rail 10. (See reference...) Figure 3 It can be seen that hydraulic outriggers 13 are installed on the front side of the movable connecting plate 12. In order to ensure that the hydraulic outriggers 13 can retract only after moving a certain distance regardless of whether the platform moves forward or backward, limit switches 11 are installed on both sides of the first square slot on the surface of the mounting plate 5. When the electric forklift 2 runs, it drives the hydraulic outriggers 13 to move in the lateral direction along the guide rail 10 and contact the limit switches 11.

[0028] In this implementation plan, the specific working principle is as follows: During actual operation, when the electric forklift 2 moves, its hydraulic outriggers 13 move in the direction of movement of the electric forklift 2 via the guide rail 10, so that one side of the hydraulic outriggers 13 contacts the limit switch 11. After contact, the hydraulic outriggers 13 retract, and the adjustable rear wheel structure 9 contacts the ground, thereby facilitating the movement of the platform. While the platform is moving, its hydraulic outriggers 13 continue to provide support until they contact the limit switch 11. This ensures the stability and safety of the platform during the initial operation of the electric forklift 2, preventing platform swaying due to the inertial force of the initial movement. (See also...) Figure 1 and Figure 2 As can be seen, the electric forklift 2 and the adjustable rear wheel structure 9 can maintain the stability of the platform during movement. When it is necessary to retract the hydraulic outrigger 13, the second cylinder 14 is first extended and locked. Then, the electric forklift 2 is moved to disengage it from the limit switch 11. At this time, the hydraulic outrigger 13 retracts and is locked again by the second cylinder 14 after retraction. This prevents the hydraulic outrigger 13 from accidentally contacting the limit switch 11 due to tilting when the platform moves on a slope, thus preventing the hydraulic outrigger 13 from extending.

[0029] To prevent the second cylinder 14 from colliding with the second square slot and the sidewall of the first square slot from colliding with the limit switch 11 when the hydraulic outrigger 13 is moving, please refer to [link / reference needed]. Figure 3 As can be seen, the surface of the movable connecting plate 12 is symmetrically provided with a third square slot, wherein the distance a1 from the left side of the third square slot to the right side of the second square slot is greater than the distance a2 from the right side of the hydraulic outrigger 13 to the left side of the limit switch 11.

[0030] Based on the above, in order to prevent the hydraulic outriggers 13 from shifting due to uneven ground when they are providing support, please refer to the following for details. Figure 3 and Figure 4 As can be seen, a second hydraulic cylinder 14 is also installed on the front end face of the movable connecting plate 12. The telescopic end of the second hydraulic cylinder 14 passes through the second square slot, and a clamping plate 15 is installed at the end of the telescopic end. When the hydraulic outrigger 13 provides support, in order to prevent movement caused by uneven ground, the second hydraulic cylinder 14 retracts outward and inward, so that the clamping plate 15 contacts the surface of the mounting plate 5 to achieve clamping, thereby preventing the hydraulic outrigger 13 from moving and causing platform instability that affects safety.

[0031] The hydraulic outrigger 13 and the second hydraulic cylinder 14 provide power to the structure; for details, please refer to [reference needed]. Figure 1 As can be seen, a mounting bracket 3 is installed on the right side of the lifting platform frame 1, and a hydraulic power unit 4 is provided on the upper end of the mounting bracket 3 to provide power to the hydraulic outrigger 13 and the second oil cylinder 14.

[0032] For details on how the adjustable rear wheel structure 9 achieves adjustment, please refer to [link / reference needed]. Figure 1 and Figure 7 As can be seen, the adjustable rear wheel structure 9 includes a fixed plate 901, a stabilizing plate 902, a threaded shaft 903, an adjusting bolt 904, a connecting plate 905, and a movable wheel 906. The fixed plate 901 is installed on the front and rear sides of the lifting platform frame 1, and the stabilizing plate 902 connected to the side of the lifting platform frame 1 is installed at the lower end of the fixed plate 901. The threaded shaft 903 is bolted to the surface of the fixed plate 901, and the adjusting bolt 904 is bolted to the surface of the threaded shaft 903. The connecting plate 905 is connected to the lower end of the threaded shaft 903, and the movable wheel 906 is installed at the lower end of the connecting plate 905. In order to keep the platform flat, the adjusting bolt 904 is rotated to rotate the threaded shaft 903, thereby adjusting the threaded shaft 903 through the threaded connection between the threaded shaft 903 and the fixed plate 901, thereby adjusting the height of the movable wheel 906 so that the movable wheel 906 and the movable wheel of the electric forklift 2 are kept on the same plane as much as possible.

[0033] The scissor lift platform is consistent with existing technology platforms, and will not be described in detail here. Please refer to [link / reference needed]. Figure 8 As can be seen, the scissor lift platform includes a lifting support rod 6, a first hydraulic cylinder 7, and a platform 8; the lifting support rod 6 is installed on the upper end face of the lifting platform frame 1, the first hydraulic cylinder 7 is installed on the lifting support rod 6, and the platform 8 is installed at the upper end of the lifting support rod 6.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A scissor lift platform for assisted walking, comprising a lifting platform frame (1), a scissor lift platform, and an adjustable rear wheel structure (9), wherein the scissor lift platform is installed on the upper end of the lifting platform frame (1), and the adjustable rear wheel structure (9) is installed on both the front and rear sides of the lifting platform frame (1), characterized in that: An electric forklift (2) capable of auxiliary movement is installed on the left side of the lifting platform frame (1). A support structure that can improve support safety is provided on the upper surface of the lifting platform frame (1). The support structure includes a mounting plate (5), a guide rail (10), a limit switch (11), a movable connecting plate (12), and hydraulic outriggers (13). The mounting plate (5) is installed on the upper side of the lifting platform frame (1). The surface of the mounting plate (5) is symmetrically provided with a first square slot and a second square slot is provided in the middle of the surface of the mounting plate (5). A guide rail (10) is provided on the inner side of the first square slot. A movable connecting plate (12) is installed on the guide rail (10). A hydraulic outrigger (13) is installed on the front side of the movable connecting plate (12). Limit switches (11) are installed on both sides of the first square slot on the surface of the mounting plate (5). When the electric forklift (2) runs, it drives the hydraulic outrigger (13) to move in the lateral direction along the guide rail (10) and contact the limit switch (11).

2. The scissor lift platform for assisted walking according to claim 1, characterized in that: The surface of the movable connecting plate (12) is symmetrically provided with a third square slot, wherein the distance a1 from the left side of the third square slot to the right side of the second square slot is greater than the distance a2 from the right side of the hydraulic outrigger (13) to the left side of the limit switch (11).

3. The scissor lift platform for assisted movement according to claim 1, characterized in that: The front end of the movable connecting plate (12) is also equipped with a second oil cylinder (14), the telescopic end of the second oil cylinder (14) passes through the second square slot, and a clamping plate (15) is installed at the end of the telescopic end.

4. The scissor lift platform for assisted movement according to claim 1, characterized in that: The right side of the lifting platform frame (1) is equipped with a mounting bracket (3), and the upper end of the mounting bracket (3) is provided with a hydraulic power unit (4) that provides power to the hydraulic outriggers (13) and the second oil cylinder (14).

5. The scissor lift platform for assisted walking according to claim 1, characterized in that: The adjustable rear wheel structure (9) includes a fixed plate (901), a stabilizing plate (902), a threaded shaft (903), an adjusting bolt (904), a connecting plate (905), and a movable wheel (906). The fixed plate (901) is installed on the front and rear sides of the lifting platform frame (1), and the lower end of the fixed plate (901) is equipped with a stabilizing plate (902) connected to the side of the lifting platform frame (1). The surface of the fixed plate (901) is bolted with a threaded shaft (903), and an adjusting bolt (904) is bolted on the surface of the threaded shaft (903). The lower end of the threaded shaft (903) is connected with a connecting plate (905), and the lower end of the connecting plate (905) is equipped with a movable wheel (906).

6. The scissor lift platform for assisted walking according to claim 1, characterized in that: The scissor lift platform includes a lifting support rod (6), a first hydraulic cylinder (7), and a platform (8); the lifting support rod (6) is installed on the upper end face of the lifting platform frame (1), the first hydraulic cylinder (7) is installed on the lifting support rod (6), and the platform (8) is installed at the upper end of the lifting support rod (6).

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