Rotating platform limiting device of hydraulic driving overhead working truck

Abstract

The utility model relates to the technical field of high-altitude operation vehicles, in particular to a hydraulic driving high-altitude operation vehicle rotating platform limiting device which comprises a connecting arm, and a base is installed at one end of the connecting arm. When the electric push rod pushes the rack to slide in the corresponding sliding groove, the other rack is driven by the gear to slide in the corresponding sliding groove, and when the two racks slide in the corresponding sliding grooves, the two transverse plates are driven to get close to each other. When the two transverse plates move relatively, the two limiting arc plates are driven by the top supporting plate to be tightly attached to the outer portion of the cylindrical block, and the two limiting arc plates are tightly attached to the cylindrical block so that the rotating platform can be conveniently limited to guarantee stability of the rotating platform. Therefore, the problem that construction of workers is affected due to the fact that the rotating platform is prone to deviation in the using process due to the fact that a traditional overhead working truck rotating platform is not provided with a limiting device is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work vehicles, in particular to a limit device for the rotating platform of a hydraulically driven aerial work vehicle. Background Technique

[0002] Today, with the accelerating process of modern urbanization, aerial work has become an indispensable part of many industries. From building maintenance, power maintenance to fire rescue, aerial work vehicles, as an efficient and safe working platform, are becoming increasingly important. As the core power source of aerial work vehicles, hydraulic drive technology has many significant advantages. Firstly, the hydraulic system can provide stable and powerful power output, enabling the aerial work vehicle to easily handle various complex terrains and working environments. Whether it is a rough construction site or a narrow and crowded urban street, it can operate with ease. Secondly, hydraulic transmission has good speed regulation performance and overload protection ability, which can accurately control the lifting speed according to the operation requirements, and at the same time ensure automatic stop of work under overload conditions, effectively ensuring the safety of operators and equipment. There is a rotating platform on the aerial work vehicle to facilitate construction operations by workers. However, the traditional rotating platform of the aerial work vehicle is not limited, resulting in easy deviation of the rotating platform during use, affecting the construction of workers, so there are certain drawbacks.

[0003] In summary, the utility model solves the existing problems by designing a limit device for the rotating platform of a hydraulically driven aerial work vehicle. Content of the Utility Model

[0004] The purpose of the utility model is to provide a limit device for the rotating platform of a hydraulically driven aerial work vehicle to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The limit device for the rotating platform of a hydraulically driven aerial work vehicle includes a connecting arm. One end of the connecting arm is installed with a base. The inner bottom of the base is installed with a stepping motor. Through grooves are symmetrically opened on both sides of the inner bottom of the base and located on both sides of the stepping motor. A rotating shaft is installed on the output shaft of the stepping motor. A cylindrical block is installed on the outer ring surface of the rotating shaft. A rotating platform is installed on the top of the rotating shaft. The bottom of the base is installed with an equipment box;

[0007] An electric push rod is installed on the inner side wall of the equipment box. One end of the electric push rod is installed with a connecting block. A gear is installed at the center position of the inner bottom of the equipment box. Sliding grooves are symmetrically opened on both sides of the gear at the inner bottom of the equipment box. Fixed blocks are symmetrically installed at both ends of the inner bottom of the equipment box. A limiting groove is opened at the top of the fixed block. Sliders are symmetrically installed at both ends of the inner part of the limiting groove. A cross plate is installed at the top of the sliders and between the two limiting grooves. A rack is installed at the bottom of the cross plate and inside the sliding groove. A support plate is installed at the top of the cross plate. One end of the top of the outer side of the support plate is installed with a limiting arc plate.

[0008] As a preferred solution of the present utility model, one end of the top of the rotating shaft penetrates through the top of the base and is connected to the bottom of the rotating platform, and the rotating shaft is fixedly connected to the cylindrical block.

[0009] As a preferred solution of the present utility model, the bottom of the gear is rotatably connected to the inner bottom of the equipment box, and the gear meshes with the two racks.

[0010] As a preferred solution of the present utility model, the outer side dimension of the slider matches the inner side wall dimension of the limiting groove, and the outer side of the slider is slidably connected to the inner side wall of the limiting groove.

[0011] As a preferred solution of the present utility model, the bottom of the rack is slidably connected to the inside of the sliding groove, and one end of the connecting block is connected to the outside of one of the racks.

[0012] As a preferred solution of the present utility model, an anti-slip pad is arranged on the outside of the limiting arc plate, and when the two cross plates move relative to each other, the two limiting arc plates are driven by the top support plate to closely adhere to the outside of the cylindrical block.

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

[0014] 1. In the present utility model, through the designed hydraulic-driven aerial work platform limiting device, when the electric push rod pushes the rack to slide inside its corresponding sliding groove, the other rack is driven to slide inside its corresponding sliding groove by the gear. When the two racks slide inside the corresponding sliding grooves, the two cross plates are driven to approach each other. When the two cross plates move relative to each other, the two limiting arc plates are driven by the top support plate to closely adhere to the outside of the cylindrical block. The rotation platform can be limited and its stability can be ensured by the two limiting arc plates closely adhering to the cylindrical block, thus effectively solving the problem that the traditional aerial work platform rotation platform is not provided with a limit, resulting in the rotation platform being prone to deviation during use and affecting the construction of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 This is the Figure 1 partial structural schematic diagram of the present utility model;

[0017] Figure 3 This is the Figure 2 partial structural schematic diagram of the present utility model;

[0018] Figure 4 This is the Figure 3 partial structural schematic diagram of the present utility model.

[0019] In the figure: 1. connecting arm; 2. base; 201. through groove; 3. stepper motor; 4. rotating shaft; 5. cylindrical block; 6. rotating platform; 7. equipment box; 701. sliding groove; 8. electric push rod; 9. connecting block; 10. gear; 11. fixed block; 1101. limiting groove; 12. slider; 13. horizontal plate; 14. rack; 15. support plate; 16. limiting arc plate. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] For the embodiments, please refer to Figures 1-4 , this utility model provides a technical solution:

[0025] A hydraulic-driven high-altitude work vehicle rotating platform limit device includes a connecting arm 1. One end of the connecting arm 1 is installed with a base 2. A stepping motor 3 is installed at the inner bottom of the base 2. Through grooves 201 are symmetrically formed at the inner bottom of the base 2 and on both sides of the stepping motor 3. A rotating shaft 4 is installed on the output shaft of the stepping motor 3. A cylindrical block 5 is installed on the outer ring surface of the rotating shaft 4. A rotating platform 6 is installed at the top of the rotating shaft 4. An equipment box 7 is installed at the bottom of the base 2;

[0026] An electric push rod 8 is installed on the inner side wall of the equipment box 7. One end of the electric push rod 8 is installed with a connecting block 9. A gear 10 is installed at the center position of the inner bottom of the equipment box 7. Slide grooves 701 are symmetrically formed at the inner bottom of the equipment box 7 and on both sides of the gear 10. Fixed blocks 11 are symmetrically installed at both ends of the inner bottom of the equipment box 7. A limiting groove 1101 is formed at the top of the fixed block 11. Sliders 12 are symmetrically installed at both ends inside the limiting groove 1101. A cross plate 13 is installed at the top of the sliders 12 and between the two limiting grooves 1101. A rack 14 is installed at the bottom of the cross plate 13 and inside the slide groove 701. A support plate 15 is installed at the top of the cross plate 13. A limiting arc plate 16 is installed at one end of the outer side surface of the support plate 15 at the top.

[0027] Specifically, referring to Figure 4 , the bottom of the gear 10 is rotatably connected to the inner bottom of the equipment box 7, and the gear 10 meshes with the two racks 14, so as to ensure that when the electric push rod 8 pushes one of the racks 14 to slide inside its corresponding slide groove 701, the other rack 14 is driven to slide inside its corresponding slide groove 701 through the gear 10.

[0028] Furthermore, one end of the top of the rotating shaft 4 penetrates through the top of the base 2 and is connected to the bottom of the rotating platform 6, and the rotating shaft 4 is fixedly connected to the cylindrical block 5 on the outside, so as to ensure that the rotating platform 6 is driven to rotate by driving the rotating shaft 4 to rotate through the stepping motor 3.

[0029] Furthermore, the bottom of the rack 14 is slidably connected to the inside of the chute 701, and one end of the connecting block 9 is connected to the outside of one of the racks 14, so as to ensure that the rack 14 is pushed by the electric push rod 8 to slide inside its corresponding chute 701. The sliding of the rack 14 inside the chute 701 increases the stability of the movement of the rack 14.

[0030] Furthermore, an anti-slip pad is provided on the outside of the limiting arc plate 16, and when the two cross plates 13 move relative to each other, the two limiting arc plates 16 are driven by the top support plate 15 to closely adhere to the outside of the cylindrical block 5, so as to ensure that the rotation platform 6 is limited and stabilized by the two limiting arc plates 16 closely adhering to the cylindrical block 5, and the anti-slip pad provided on the limiting arc plate 16 increases the friction between the limiting arc plate 16 and the cylindrical block 5.

[0031] Specifically, referring to Figure 3 , the outer side dimension of the slider 12 matches the inner side wall dimension of the limiting groove 1101, and the outer side of the slider 12 is slidably connected to the inner side wall of the limiting groove 1101, so as to ensure that when the two racks 14 slide inside the corresponding chutes 701, the two cross plates 13 are driven to approach or move away from each other. The sliding of the slider 12 inside the limiting groove 1101 increases the stability of the movement of the two cross plates 13.

[0032] Working process of the utility model: When using the hydraulic-driven aerial work platform rotation platform limit device designed by this solution, during the use of the hydraulic-driven aerial work platform rotation platform, the rotation platform 6 can be lifted by the connecting arm 1. The internal of the stepping motor 3 is provided with a stepping motor controller, which is an electronic product capable of emitting uniform pulse signals. After the signals it emits enter the stepping motor driver, they will be converted by the driver into the strong current signals required by the stepping motor, driving the stepping motor 3 to operate. The rotation shaft 4 is driven by the stepping motor 3 to rotate, thereby driving the rotation platform 6 to rotate, so as to facilitate the staff to construct by rotating the rotation platform 6. When the adjustment of the rotation platform 6 is completed and it needs to be limited to ensure its stability, the electric push rod 8 is used to push the rack 14 to slide inside its corresponding chute 701. The sliding of the rack 14 inside the chute 701 increases the stability of the movement of the rack 14. When the electric push rod 8 pushes the rack 14 to slide inside its corresponding chute 701, the other rack 14 is driven to slide inside its corresponding chute 701 by the gear 10. When the two racks 14 slide inside the corresponding chutes 701, the two cross plates 13 are driven to approach each other. The sliding of the slider 12 inside the limit groove 1101 increases the stability of the movement of the two cross plates 13. When the two cross plates 13 move relatively, the two limit arc plates 16 are driven by the top support plate 15 to closely adhere to the outside of the cylindrical block 5. The two limit arc plates 16 closely adhering to the cylindrical block 5 facilitate the limitation of the rotation platform 6 to ensure its stability, and the anti-slip pads provided on the limit arc plates 16 increase the friction between the limit arc plates 16 and the cylindrical block 5, thereby realizing the limitation of the rotation platform to facilitate the construction operation of the staff.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Hydraulic-driven aerial work platform rotary platform limit device, including a connecting arm (1), characterized in that: One end of the connecting arm (1) is equipped with a base (2). At the inner bottom of the base (2), a stepping motor (3) is installed. At the inner bottom of the base (2) and symmetrically on both sides of the stepping motor (3), through slots (201) are provided. On the output shaft of the stepping motor (3), a rotating shaft (4) is installed. On the outer ring surface of the rotating shaft (4), a cylindrical block (5) is installed. At the top of the rotating shaft (4), a rotating platform (6) is installed. At the bottom of the base (2), an equipment box (7) is installed. On the inner side wall of the equipment box (7), an electric push rod (8) is installed. One end of the electric push rod (8) is equipped with a connecting block (9). At the center position of the inner bottom of the equipment box (7), a gear (10) is installed. At the inner bottom of the equipment box (7) and symmetrically on both sides of the gear (10), sliding slots (701) are provided. At both ends of the inner bottom of the equipment box (7) symmetrically, fixing blocks (11) are installed. At the top of the fixing block (11), a limiting slot (1101) is provided. At both ends of the inside of the limiting slot (1101) symmetrically, sliding blocks (12) are installed. At the top of the sliding block (12) and between the two limiting slots (1101), a cross plate (13) is installed. At the bottom of the cross plate (13) and inside the sliding slot (701), a rack (14) is installed. At the top of the cross plate (13), a support plate (15) is installed. At one end of the top of the outer side of the support plate (15), a limiting arc plate (16) is installed.

2. The hydraulic-driven rotating platform limit device for aerial work vehicles according to claim 1, wherein: One end of the top of the rotating shaft (4) passes through the top of the base (2) and is connected to the bottom of the rotating platform (6), and the rotating shaft (4) is fixedly connected to the cylindrical block (5) on the outside.

3. The hydraulic-driven aerial work platform slewing platform limit device according to claim 1, characterized in that: The bottom of the gear (10) is rotatably connected to the inner bottom of the equipment box (7), and the gear (10) meshes with the two racks (14).

4. The hydraulic-driven aerial work platform rotary platform limit device according to claim 1, characterized in that: The outer side dimension of the sliding block (12) matches the inner side wall dimension of the limiting slot (1101), and the outer side of the sliding block (12) is slidably connected to the inner side wall of the limiting slot (1101).

5. The hydraulic-driven aerial work platform rotary platform limit device according to claim 1, characterized in that: The bottom of the rack (14) is slidably connected to the inside of the sliding slot (701), and one end of the connecting block (9) is connected to the outside of one of the racks (14).

6. The hydraulic drive high-altitude work vehicle rotating platform limit device according to claim 1, characterized in that: An anti-slip pad is provided on the outside of the limiting arc plate (16), and when the two cross plates (13) move relative to each other, the two limiting arc plates (16) are driven by the top support plate (15) to closely adhere to the outside of the cylindrical block (5).

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