Movable lifting rotary ladder

Abstract

The utility model discloses a mobile lifting rotary ladder, including mobile car frame, rotary base, ladder and extension ladder, rotary base places on mobile car frame, and mobile car frame long side both sides are equipped with multiple groups of outer expansion formula hydraulic support leg, and rotary base is the integral connection of rotary seat and upper base, and rotary seat extends to right side and has two groups of support plate, and the first lifting cylinder is hinged between two groups of support plate, and the other end of first lifting cylinder is hinged with ladder, and the top of ladder is hinged with the right side edge of upper base, and the left side of upper base is hinged with one side of extension ladder, and two groups of second lifting cylinder are hinged on rotary seat, and the other end of second lifting cylinder is hinged with the both sides main body of extension ladder, and the hydraulic support leg is the fixed frame and rotary support leg, and rotary support leg drives through hydraulic mechanism. The utility model discloses stable structure, and the contact area and support span with ground are increased greatly, and effectively disperse weight, and rotate more convenient.

Description

Technical Field

[0001] This utility model relates to the field of marine tools, and in particular to a mobile lifting and rotating ladder. Background Technology

[0002] A search revealed a utility model patent with publication number CN209479912U, which discloses a hydraulically driven mobile gangway vehicle, including a vehicle-mounted platform and a gangway device. It utilizes a vehicle-mounted platform and a hydraulic drive device to achieve flexible movement and automatic extension / retraction of the gangway vehicle. However, in actual operation, due to the small size of the vehicle and the lack of auxiliary support structures, the overall structure is not stable enough and prone to tipping over, posing certain safety hazards. The gangways on both sides are supported entirely by hydraulic mechanisms, and personnel exert significant force on them, making the hydraulic mechanisms very prone to damage and requiring frequent maintenance. Furthermore, its rotation relies on a trolley, resulting in insufficient precision and flexibility in the rotation angle. Utility Model Content

[0003] The purpose of this invention is to provide a mobile lifting and rotating ladder with a stable structure and automatic rotation capability.

[0004] The purpose of this utility model is achieved as follows: a mobile lifting and rotating ladder includes a mobile frame, a rotating base, a ladder, and a telescopic ladder; the rotating base is placed on the mobile frame, and multiple sets of outward-expanding hydraulic support legs are provided on both sides of the long side of the mobile frame; the rotating base is composed of a rotating seat and an upper base integrally connected, and two sets of support plates extend to the right side of the rotating seat, with a first lifting cylinder hinged between the two sets of support plates, the other end of the first lifting cylinder being hinged to the ladder, and the top of the ladder being hinged to the right side of the upper base; one side of the telescopic ladder is hinged to the left side of the upper base, and two sets of second lifting cylinders are hinged on the rotating seat, the other end of the second lifting cylinders being hinged to the two main bodies of the telescopic ladder; the hydraulic support legs are composed of a fixed frame and rotating support legs, and the rotating support legs are driven by a hydraulic mechanism.

[0005] Preferably, the fixed frame consists of two sets of side plates, with a rotating leg hinged to the outer bottom of each side plate, and an enlarged plate at the bottom of each rotating leg; one end of the hydraulic mechanism is hinged to the side plate, and the other end is hinged to the rotating leg; when the enlarged plate is in contact with the ground, the rotating leg opens at an obtuse angle.

[0006] Preferably, the left side of the mobile vehicle frame is provided with a telescopic ladder support, the length of which is greater than the width of the telescopic ladder, and the top of which is provided with a rubber layer.

[0007] Preferably, the surfaces of the two sets of support plates abut against the connecting rods on both sides of the ladder, and the surfaces of the support plates are provided with a rubber layer.

[0008] Preferably, the rotary seat is provided with a drive gear that meshes with the rotary gear to drive rotation.

[0009] Preferably, the mobile vehicle frame is provided with a front drive wheel set and a rear drive wheel set, and the front drive wheel set is provided with a hydraulic steering mechanism.

[0010] Preferably, the telescopic ladder support consists of two sets of fixed columns and a U-shaped frame. Both the fixed columns and the U-shaped frame are provided with multiple sets of through holes. The two ends of the U-shaped frame are inserted into the fixed columns and fixed by pins.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] 1. The mobile lifting and rotating ladder is equipped with outward-expanding hydraulic outriggers. When the expanded plate contacts the ground, the outriggers open at an obtuse angle, which greatly increases the contact area and support span, effectively distributes the weight, prevents tilting and tipping during lifting and rotation, and reduces safety hazards.

[0013] 2. In addition to the hydraulic mechanism, the ladder and telescopic ladder of this utility model also have a hinged structure that cooperates with each support to limit movement, so as to avoid the force of personnel working being concentrated on the hydraulic mechanism; this significantly reduces the stress on the hydraulic mechanism, reduces the risk of damage and the frequency of maintenance.

[0014] 3. The internal gear transmission enables the rotating base to rotate, allowing for more flexible adjustment of position and height, and precise alignment with the work point, making it suitable for complex environments and diverse work scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 This is a top view of the structure of this utility model.

[0018] The components include: 1. Mobile vehicle frame; 101. Front drive wheel set; 102. Rear drive wheel set; 103. Hydraulic steering mechanism; 2. Rotating base; 201. Rotary base; 202. Upper base; 3. Ladder; 301. Linkage rod; 4. Telescopic ladder; 5. Hydraulic outrigger; 501. Fixed frame; 5011. Side plate; 502. Rotating outrigger; 5021. Expanding plate; 503. Hydraulic mechanism; 6. Support plate; 7. First lifting cylinder; 8. Second lifting cylinder; 9. Telescopic ladder support; 901. Fixed column; 902. U-shaped frame. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1 As shown, a mobile lifting and rotating ladder includes a mobile frame 1, a rotating base 2, a ladder 3, and a telescopic ladder 4. The rotating base 2 is placed on the mobile frame 1, and multiple sets of outward-expanding hydraulic support legs 5 are provided on both sides of the long side of the mobile frame 1. The rotating base 2 is composed of a rotating seat 201 and an upper base 202 integrally connected. Two sets of support plates 6 extend to the right side of the rotating seat 201, and a first lifting cylinder 7 is hinged between the two sets of support plates 6. The other end of the first lifting cylinder 7 is hinged to the ladder 3, and the top of the ladder 3 is hinged to the right side of the upper base 202. One side of the telescopic ladder 4 is hinged to the left side of the upper base 202, and two sets of second lifting cylinders 8 are hinged on the rotating seat 201. The other end of the second lifting cylinders 8 is hinged to the two main bodies of the telescopic ladder 4. The hydraulic support legs 5 are composed of a fixed frame 501 and rotating support legs 502, and the rotating support legs 502 are driven by a hydraulic mechanism 503.

[0023] The fixed frame 501 is a side plate 5011, and a rotating support leg 502 is hinged to the bottom outer end of the side plate 5011. An enlarged plate 5021 is provided at the bottom of the rotating support leg 502. One end of the hydraulic mechanism 503 is hinged to the side plate 5011, and the other end is hinged to the rotating support leg 502. When the enlarged plate 5021 is in contact with the ground, the opening angle of the rotating support leg 502 is an obtuse angle, which increases the contact area between the support leg and the ground and the support span, significantly improving the stability of the equipment. It can effectively distribute the weight of the ladder and personnel, and avoid tilting or shaking during lifting or rotation. It is especially suitable for operation scenarios in complex ground environments.

[0024] The left side of the mobile vehicle frame 1 is equipped with a telescopic ladder support 9. The length of the telescopic ladder support 9 is greater than the width of the telescopic ladder 4. The top of the telescopic ladder support 9 is equipped with a rubber layer. The surfaces of the two sets of support plates 6 abut against the connecting rods 301 on both sides of the ladder 3. The surfaces of the support plates 6 are equipped with a rubber layer, which can buffer the rigid collision between the two, reduce mechanical wear and noise, and extend the service life of the equipment. At the same time, the support plates can also adopt a telescopic structure, which limits the movement after the ladder rotates. In the initial state of the ladder, the support plates abut against the ladder, and a small gap is left between the bottom of the ladder and the ground.

[0025] The rotary seat 201 has an internal drive gear that meshes with the rotary gear to drive rotation. Through the transmission of the internal gear, the rotary seat rotates as a whole (this is an application of existing technology and will not be described in detail).

[0026] The mobile vehicle frame 1 is equipped with a front drive wheel set 101 and a rear drive wheel set 102. The front drive wheel set 101 is equipped with a hydraulic steering mechanism 103, which enables the overall movement of the vehicle.

[0027] The telescopic ladder support 9 consists of two sets of fixed columns 901 and a U-shaped frame 902. Both the fixed columns 901 and the U-shaped frame 902 are provided with multiple sets of through holes. The two ends of the U-shaped frame 902 are inserted into the fixed columns 901 and fixed by pins. The U-shaped frame can move up and down on the fixed columns. After the telescopic ladder rotates to a certain angle, the telescopic ladder support is adjusted to contact the telescopic ladder, further limiting the telescopic ladder.

[0028] The working principle of this utility model is explained as follows: During operation, the mobile lifting and rotating ladder first uses a hydraulic steering mechanism to drive the front drive wheel set, which, in conjunction with the rear drive wheel set, moves the equipment to the designated position. Then, the outward-expanding hydraulic outriggers are activated, and the hydraulic mechanism drives the rotating outriggers to open, with the expanded plates contacting the ground at an obtuse angle for enhanced stability. Gears inside the swivel base mesh, driving the upper base to rotate and adjust the working direction; the first lifting cylinder extends and retracts, driving the ladder to rise and fall around the hinge point; the second lifting cylinder actuates, controlling the extension or retraction of the telescopic ladder to meet different height requirements. The U-shaped frame of the telescopic ladder support is height-adjustable and contacts and limits the movement of the telescopic ladder, ensuring the overall structural stability and enabling flexible and efficient operation.

[0029] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A mobile lifting and rotating staircase, characterized in that, The system includes a mobile vehicle frame, a rotating base, a ladder, and a telescopic ladder. The rotating base is placed on the mobile vehicle frame, and the long side of the mobile vehicle frame is provided with multiple sets of outward-expanding hydraulic outriggers. The rotating base is composed of a swivel base and an upper base integrally connected. The swivel base extends to the right with two sets of support plates, and a first lifting cylinder is hinged between the two sets of support plates. The other end of the first lifting cylinder is hinged to the ladder, and the top of the ladder is hinged to the right side of the upper base. One side of the telescopic ladder is hinged to the left side of the upper base, and two sets of second lifting cylinders are hinged to the swivel base. The other end of the second lifting cylinder is hinged to the two main bodies of the telescopic ladder. The hydraulic outriggers are composed of a fixed frame and rotating outriggers, and the rotating outriggers are driven by a hydraulic mechanism.

2. The mobile lifting and rotating staircase according to claim 1, characterized in that, The fixed frame consists of two sets of side plates. The bottom outer end of each side plate is hinged to a rotating leg, and the bottom of the rotating leg is provided with an enlarged plate. One end of the hydraulic mechanism is hinged to the side plate, and the other end is hinged to the rotating leg. When the enlarged plate is in contact with the ground, the rotating leg opens at an obtuse angle.

3. A mobile lifting and rotating staircase according to claim 1, characterized in that, The mobile vehicle frame is provided with a telescopic ladder support on the left side. The length of the telescopic ladder support is greater than the width of the telescopic ladder, and the top of the telescopic ladder support is provided with a rubber layer.

4. A mobile lifting and rotating staircase according to claim 1, characterized in that, The surfaces of the two sets of support plates abut against the connecting rods on both sides of the ladder, and the surfaces of the support plates are provided with a rubber layer.

5. A mobile lifting and rotating staircase according to claim 1, characterized in that, The rotary seat is equipped with a drive gear that meshes with the rotary gear to drive rotation.

6. A mobile lifting and rotating staircase according to claim 1, characterized in that, The mobile vehicle frame is equipped with a front drive wheel set and a rear drive wheel set, and the front drive wheel set is equipped with a hydraulic steering mechanism.

7. A mobile lifting and rotating staircase according to claim 3, characterized in that, The telescopic ladder support consists of two sets of fixed columns and a U-shaped frame. Both the fixed columns and the U-shaped frame are provided with multiple sets of through holes. The two ends of the U-shaped frame are inserted into the fixed columns and fixed by pins.

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