Self-walking shear fork type lifting platform

Abstract

The utility model relates to the technical field of lifting platforms, in particular to a self-walking shear fork type lifting platform which comprises a movable base, a shear fork type lifting mechanism is installed on the top of the movable base, a standing platform is installed on the top of the shear fork type lifting mechanism, and second handrails are welded to the front side and the rear side of the top of the standing platform. By means of the ladder stand, an operator can conveniently climb on the standing platform, then a handle is rotated to drive a winding roller to rotate, then a steel rope is wound, the ladder stand is rotationally folded, then a pull plate is pulled to enable a clamping rod to move, a spring is stretched, the ladder stand and a connecting plate are closed, and at the moment, the clamping rod is right opposite to a clamping hole; and then the pull plate is loosened, the clamping rod is inserted into the clamping hole in the ladder stand under the action of the resilience force of the spring, and the ladder stand and the second handrail on the front side are positioned and fixed, so that the ladder stand has the advantage that the ladder stand can be conveniently folded and unfolded.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a self-propelled scissor lift platform. Background Technique

[0002] The self-propelled scissor lift platform, also known as a fully self-propelled lift platform, is a special equipment for high-altitude operations. Its structure is based on a scissor design and uses battery-powered movement. Due to its large chassis, this lift platform can maintain high stability and safety when moving in the raised state.

[0003] After retrieval, the publication number is CN214734288U, and the name is a scissor self-propelled lift platform, including a mobile base. Through research and analysis, it is found that although it has the advantages that the lower end of the movable door abuts against one side of the folding baffle to form a ladder structure, which is convenient for operators to get on and off, however, to a certain extent, it still has the following disadvantages.

[0004] For example, when the operator climbs onto the standing platform, the operator needs to bend down and use his hand to pull the ladder to retract it, which is laborious and inconvenient to operate. Moreover, when lowering, the impact force is relatively large and damages the lift platform. At the same time, the standing area of the standing platform is limited and cannot be adjusted according to the number of operators. To solve the above technical problems, we have designed a self-propelled scissor lift platform. Content of the Utility Model

[0005] The purpose of the utility model is to provide a self-propelled scissor lift platform, which has the advantages of convenient retraction and extension of the ladder and adjustment of the standing area, and solves the problems that when the operator climbs onto the standing platform, the operator needs to bend down and use his hand to pull the ladder to retract it, which is laborious and inconvenient to operate, and at the same time, the standing area of the standing platform is limited and cannot be adjusted according to the number of operators.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A self-propelled scissor lift platform, including a mobile base, a scissor lift mechanism is installed on the top of the mobile base, a standing platform is installed on the top of the scissor lift mechanism, railing two is welded on both the front and rear sides of the top of the standing platform, an enlarged support mechanism is installed on the surface of the standing platform, a connecting plate is welded on the surface of the front railing two, a ladder is rotatably connected to the bottom of the opposite sides of the two connecting plates through a rotating shaft, and a retraction and fixation mechanism is installed on the surface of the front railing two;

[0007] The enlarged support mechanism includes a driving motor, a lead screw, a moving block, a support platform and railing one, and the retraction and fixation mechanism includes a fixing plate, a winding roller, a steel wire rope, a handle, a clamping rod, a pulling plate and a spring.

[0008] Preferably, one side of the driving motor is fixedly connected to the right side of the standing platform through bolts. The rotating shaft of the driving motor penetrates through the standing platform and is fixedly connected to the right end of the lead screw. The left end of the lead screw is rotationally embedded in the left side of the standing platform through a bearing.

[0009] Preferably, the number of the moving blocks is two, and they are respectively sleeved on the surfaces of both ends of the lead screw in a threaded manner. The number of the support platforms is two, and they respectively slide through both sides of the standing platform. The top of the moving block is welded to the bottom of the support platform. The first railing is welded to the top of the support platform.

[0010] Preferably, the lower end of the fixing plate is sleeved and welded to the surface of the second railing at the front side. One end of the winding roller is rotationally embedded in the right side of the fixing plate through a bearing. Both ends of the steel rope are respectively fixedly connected to the surfaces of the ladder and the winding roller. The left side of the handle is fixedly connected to the right end of the winding roller.

[0011] Preferably, one end of the clamping rod slides through the upper left part of the connecting plate on the right side. The right end of the clamping rod is welded to the left side of the pulling plate. The spring is movably sleeved on the surface of the right end of the clamping rod. Both ends of the spring are respectively fixedly connected to one side of the connecting plate and the pulling plate. A clamping hole adapted to the clamping rod is provided on the right side of the ladder.

[0012] Preferably, a support plate is welded to the front surface of the moving base. Cylinders are fixedly connected to all four sides of the moving base through bolts. The output end of the cylinder is fixedly connected to a support plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] With the present utility model, it is convenient for the operator to climb onto the standing platform through the ladder. Then, by rotating the handle, the winding roller is driven to rotate, thereby winding the steel rope and rotating and retracting the ladder. Then, by pulling the pulling plate, the clamping rod is moved and the spring is stretched. When the ladder and the connecting plate are closed, the clamping rod is aligned with the clamping hole. Then, by releasing the pulling plate, under the action of the resilience of the spring, the clamping rod is inserted into the clamping hole on the ladder to position and fix the ladder and the second railing at the front side. Thus, the present utility model has the advantage of being able to conveniently retract and deploy the ladder, facilitating the operator to get on and off, without the need for the operator to manually pull the ladder for retraction and deployment, which is safer.

[0015] By controlling the operation of the driving motor, the lead screw rotates, thereby driving the two moving blocks to move in opposite directions and moving the support platform out of the standing platform. Thus, the present utility model has the advantage of being able to increase the standing area, ensuring the normal progress of high-altitude operations and effectively improving the applicability. Description of the Drawings

[0016] Figure 1Schematic diagram of the three-dimensional structure of the present utility model;

[0017] Figure 2 Schematic diagram of the partial sectional three-dimensional view of the present utility model;

[0018] Figure 3 Schematic diagram of the closed three-dimensional view of the ladder and railing two of the present utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of A in;

[0020] Figure 5 Schematic diagram of the three-dimensional view of the enlarged support mechanism of the present utility model.

[0021] In the figure: 1, mobile base; 2, scissor lift mechanism; 3, standing platform; 4, railing two; 5, enlarged support mechanism; 51, drive motor; 52, lead screw; 53, moving block; 54, support platform; 55, railing one; 6, connecting plate; 7, ladder; 8, retracting and fixing mechanism; 81, fixing plate; 82, winding roller; 83, steel cable; 84, handle; 85, clamping rod; 86, pulling plate; 87, spring; 9, support plate; 10, cylinder; 11, support plate. Detailed implementation manners

[0022] Please refer to Figures 1-5 , a self-propelled scissor lift platform, including a mobile base 1, a scissor lift mechanism 2 is installed on the top of the mobile base 1, a standing platform 3 is installed on the top of the scissor lift mechanism 2, railing two 4 are welded on both the front and rear sides of the top of the standing platform 3, an enlarged support mechanism 5 is installed on the surface of the standing platform 3, a connecting plate 6 is welded on the surface of the front railing two 4, a ladder 7 is rotatably connected to the bottom of the opposite sides of the two connecting plates 6 through a rotating shaft, and a retracting and fixing mechanism 8 is installed on the surface of the front railing two 4;

[0023] The enlarged support mechanism 5 includes a drive motor 51, a lead screw 52, a moving block 53, a support platform 54 and a railing one 55, and the retracting and fixing mechanism 8 includes a fixing plate 81, a winding roller 82, a steel cable 83, a handle 84, a clamping rod 85, a pulling plate 86 and a spring 87.

[0024] Please refer to Figure 1 , Figure 2 and Figure 5 , one side of the drive motor 51 is fixedly connected to the right side of the standing platform 3 through bolts, the rotating shaft of the drive motor 51 penetrates through the standing platform 3 and is fixedly connected to the right end of the lead screw 52, by setting the lead screw 52, the movement of the two moving blocks 53 is realized under the drive of the drive motor 51, and the left end of the lead screw 52 is rotatably embedded in the left side of the standing platform 3 through a bearing.

[0025] Please refer toFigure 2 and Figure 5 , the number of moving blocks 53 is two, and they are respectively sleeved on the surfaces at both ends of the lead screw 52 by threads. By setting the moving blocks 53, under the action of the rotation of the lead screw 52, they move, and then can drive the movement of the support platform 54. The number of support platforms 54 is two, and they respectively slide through both sides of the standing platform 3. The top of the moving block 53 is welded to the bottom of the support platform 54, and the first railing 55 is welded to the top of the support platform 54.

[0026] Please refer to Figure 1 、 Figure 3 and Figure 4 , the lower end of the fixing plate 81 is sleeved and welded on the surface of the front second railing 4. One end of the winding roller 82 is rotationally embedded on the right side of the fixing plate 81 through a bearing. Both ends of the steel rope 83 are respectively fixedly connected to the surfaces of the ladder 7 and the winding roller 82. By setting the steel rope 83, under the rotation of the winding roller 82, it is wound or unwound, and then the ladder 7 is retracted or extended to rotate it. The left side of the handle 84 is fixedly connected to the right end of the winding roller 82.

[0027] Please refer to Figure 1 、 Figure 3 and Figure 4 , one end of the clamping rod 85 slides through the upper left of the right connecting plate 6. The right end of the clamping rod 85 is welded to the left side of the pulling plate 86. The spring 87 is movably sleeved on the surface of the right end of the clamping rod 85. Both ends of the spring 87 are respectively fixedly connected to one side of the connecting plate 6 and the pulling plate 86. By setting the spring 87, under the action of its elastic force, the clamping rod 85 is stably inserted into the clamping hole on the ladder 7 to limit and fix between the ladder 7 and the connecting plate 6. A clamping hole adapted to the clamping rod 85 is opened on the right side of the ladder 7.

[0028] Please refer to Figure 1 , a support plate 9 is welded to the front of the moving base 1. By setting the support plate 9, it is convenient to climb onto the ladder 7 standing on it. Cylinders 10 are fixedly connected to all four sides of the moving base 1 through bolts. The output end of the cylinder 10 is fixedly connected to a support plate 11. By setting the cylinder 10 and the support plate 11, after stopping walking, control the cylinder 10 to extend to make the support plate 11 move downwards, so that the moving base 1 is suspended to achieve fixed support, facilitating personnel to carry out high-altitude operations.

[0029] In use, it is convenient for the operator to climb onto the standing platform 3 through the ladder 7. Then, the handle 84 is rotated to drive the winding roller 82 to rotate, thereby winding the steel rope 83, rotating and retracting the ladder 7. Then, the pull plate 86 is pulled to move the latch rod 85 and stretch the spring 87. The ladder 7 is closed with the connecting plate 6. At this time, the latch rod 85 is aligned with the card hole. Then, the pull plate 86 is released, and under the action of the resilience of the spring 87, the latch rod 85 is inserted into the card hole on the ladder 7 to position and fix the ladder 7 and the second railing 4 on the front side. It is convenient to retract and extend the ladder 7, facilitating the operator to get on and off. There is no need for the operator to manually move the ladder 7 for retraction and extension. By controlling the operation of the drive motor 51, the lead screw 52 rotates, thereby driving the two moving blocks 53 to move in opposite directions, moving the support platform 54 out of the standing platform 3, which can increase the standing area and ensure the normal progress of high-altitude operations.

[0030] In summary, for this self-propelled scissor lift platform, through the cooperation of the second railing 4, the enlarged support mechanism 5, the connecting plate 6, the ladder 7 and the retracting and fixing mechanism 8, it solves the problems that when the operator climbs onto the standing platform, the operator needs to bend down and manually move the ladder for retraction, which is laborious and inconvenient to operate. At the same time, the standing area of the standing platform is limited and cannot be adjusted according to the number of operators.

Claims

1. A self-propelled scissor-type lifting platform, comprising a mobile base (1), a scissor-type lifting mechanism (2) being installed on the top of the mobile base (1), a standing platform (3) being installed on the top of the scissor-type lifting mechanism (2), and railings (4) being welded on both the front and rear sides of the top of the standing platform (3), characterized in that: The surface of the standing platform (3) is installed with an enlarged support mechanism (5), the surface of the second front railing (4) is welded with a connecting plate (6), the bottom of the two connecting plates (6) on the opposite side is rotatably connected to a ladder (7) via a rotating shaft, and the surface of the second front railing (4) is installed with a retractable fixing mechanism (8); The enlargement support mechanism (5) comprises a drive motor (51), a screw rod (52), a moving block (53), a support platform (54) and a handrail (55); the retractable fixing mechanism (8) comprises a fixing plate (81), a reel (82), a steel rope (83), a handle (84), a clamping rod (85), a pull plate (86) and a spring (87).

2. A self-propelled scissor lift platform according to claim 1, characterized in that: One side of the drive motor (51) is fixedly connected to the right side of the standing platform (3) via bolts, the rotating shaft of the drive motor (51) passes through the standing platform (3) and is fixedly connected to the right end of the screw rod (52), and the left end of the screw rod (52) is rotatably embedded in the left side of the standing platform (3) via a bearing.

3. The self-propelled scissor lift platform according to claim 1, characterized in that: The number of the moving blocks (53) is two, and they are respectively threadedly sleeved on the surfaces of the two ends of the screw rod (52); the number of the supporting platforms (54) is two, and they are respectively slidably penetrated on both sides of the standing platform (3); the top of the moving block (53) is welded to the bottom of the supporting platform (54), and the railing (55) is welded to the top of the supporting platform (54).

4. The self-propelled scissor lift platform according to claim 1, characterized in that: The lower end of the fixing plate (81) is sleeved and welded to the surface of the second front railing (4); one end of the winding roller (82) is rotatably embedded in the right side of the fixing plate (81) through a bearing; the two ends of the steel rope (83) are respectively fixedly connected to the surface of the ladder (7) and the winding roller (82); and the left side of the handle (84) is fixedly connected to the right end of the winding roller (82).

5. The self-propelled scissor lift platform according to claim 1, characterized in that: One end of the clamping rod (85) slides through the upper left side of the right connecting plate (6), the right end of the clamping rod (85) is welded to the left side of the pull plate (86), the spring (87) is movably sleeved on the surface of the right end of the clamping rod (85), the two ends of the spring (87) are respectively fixedly connected to one side of the connecting plate (6) and the pull plate (86), and a clamping hole matching the clamping rod (85) is opened on the right side of the ladder (7).

6. The self-propelled scissor lift platform according to claim 1, characterized in that: A support plate (9) is welded to the front of the mobile base (1), and a cylinder (10) is fixedly connected to four sides of the mobile base (1) via bolts, and a support plate (11) is fixedly connected to the output end of the cylinder (10).

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