Return self-locking intelligent movable ladder

Abstract

The utility model discloses a homing self-locking intelligent movable ladder, belongs to the technical field of movable ladders, aims at solving the problems that pedals used for getting on and off a vehicle of the movable ladder are inconvenient to adjust and stretch, and the angle of the movable ladder is inconvenient to adjust, and comprises a movable ladder body and a bottom plate fixed on the side wall of the bottom end of the movable ladder body, a pedal frame is fixed to the side wall of the top end of the bottom plate, a bearing base is rotationally connected to the side wall of the outer side of the bottom plate, a plurality of loading plates distributed circumferentially are fixed to the side wall of the bottom end of the bearing base, universal wheels are fixed to the side walls of the bottom ends of the loading plates, and an adjusting assembly matched with the bottom plate is arranged on one side of the bearing base; through the arrangement of the adjusting assembly, the angle position of the movable ladder body can be adjusted according to the actual requirement condition, the movable ladder is particularly suitable for being used in a narrow working area, the application range is wide, the use requirements in different application working environments are effectively met, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of movable ladders, and in particular relates to a self-locking intelligent movable ladder. Background Art

[0002] As we all know, currently, whether it is tank truck loading and unloading operations or equipment maintenance, workers need to go to the top of the tank truck to work. In order to facilitate workers to go to the top of the tank truck, a movable ladder is usually installed on the edge of the trestle; when the workers need to go to the top of the tank truck to work, they will put the movable ladder on the top of the tank truck, and then climb to the top of the tank truck with the movable ladder; when the workers finish the work and return to the trestle from the top of the tank truck, they need to fold the movable ladder and manually lock it.

[0003] The publication number of the comparative patent document is: "CN212454216U A reset self-locking lightweight safe intelligent movable ladder, comprising a mounting seat, two upper arms hinged on the mounting seat, two lower arms hinged on the mounting seat and a plurality of pedals spaced between the two upper arms, wherein the pedals are hinged to the two upper arms and the two lower arms; and further comprising a self-locking mechanism hinged on the mounting seat, wherein the upper arm or the lower arm is provided with a mating piece that engages with the self-locking mechanism. The advantage of the present application is that the movable ladder can be automatically locked after being folded to prevent the movable ladder from accidentally unfolding and causing a safety accident." The above patent document, however, still has the following problems in actual use: the currently existing movable ladders, because users usually install pedals and ramps to assist users in climbing the movable ladder when climbing the movable ladder body, thereby affecting the use effect of the movable ladder, and in a narrow working area, it is not easy to adjust the angle position of the movable ladder, resulting in affecting the work efficiency of the tank truck loading and unloading operations.

[0004] Therefore, a self-locking intelligent movable ladder is needed to solve the problems in the prior art of inconvenient adjustment and extension of pedals used for getting on and off the movable ladder and inconvenient angle adjustment of the movable ladder. Utility Model Content

[0005] The utility model aims to provide a self-locking intelligent movable ladder to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a self-locking intelligent movable ladder, comprising a movable ladder body, and

[0007] A base plate is fixed to the side wall at the bottom end of the movable ladder body, a pedal frame is fixed to the top side wall of the base plate, the outer side wall of the base plate is rotatably connected to a load-bearing base, a plurality of loading plates distributed in a circle are fixed to the bottom side wall of the load-bearing base, a universal wheel is fixed to the bottom side wall of the loading plate, and an adjustment component adapted to the base plate is provided on one side of the load-bearing base.

[0008] It should be noted that the adjustment component includes

[0009] A main shaft, the main shaft is fixed to the side wall of the bottom end of the base plate, the other end of the main shaft is rotatably connected to the side wall of one side of the load-bearing base, a worm wheel is tightly sleeved on the outer surface of the main shaft, a side wall of one side of the load-bearing base is rotatably connected to a slave shaft, a worm is tightly sleeved on the outer surface of the slave shaft, and the worm is meshingly connected to the worm wheel;

[0010] A support plate is fixed to the outer side wall of the load-bearing base, a servo motor is fixed to the top side wall of the support plate, and one end of the output shaft of the servo motor is coaxially fixed with one end of the slave shaft.

[0011] It is further worth mentioning that a plurality of guide rods distributed in a circumference are fixed to the side wall at the bottom end of the base plate, an annular guide groove is provided on the inner side wall of the load-bearing base, and the guide rods are slidably connected to the annular guide groove.

[0012] It should be further explained that two symmetrically distributed mounting sleeves a are fixed to the inner side wall of the pedal frame, a connecting rod is slidably connected inside the mounting sleeve a, a connecting plate is slidably connected to the top side wall of the bottom plate, a plurality of symmetrically distributed mounting sleeves b are fixed to the top side wall of the connecting plate, one end of the connecting rod is fixed to the side wall of one side of the mounting sleeve b, a rotating rod is fixed to the side wall of one side of the connecting plate, and the outer surface of the rotating rod is rotatably connected to a bearing plate.

[0013] As a preferred embodiment, the side wall of the supporting plate adjacent to the connecting plate is set as a smooth arc surface, the top side wall of the supporting plate is fixed with two symmetrically distributed handles, and the top side wall of the supporting plate is fixed with multiple equidistantly distributed anti-slip pads.

[0014] As a preferred embodiment, a guide ring is fixed to the outer side wall of the bottom plate, a guide groove is opened on the inner side wall of the load-bearing base, the guide ring is slidably connected to the guide groove, and the central axis of the base is colinearly arranged with the central axis of the load-bearing base.

[0015] Compared with the prior art, the utility model provides a self-locking intelligent movable ladder, which has at least the following beneficial effects:

[0016] (1) By adjusting the setting of the components, the angle position of the movable ladder body can be adjusted according to actual needs, which is particularly suitable for use in narrow working areas. It has a wide range of applications and can effectively meet the use needs in different application working environments, and is highly practical.

[0017] (2) By setting the connecting plate and the supporting plate, the position of the supporting plate can be adjusted according to the needs, which is convenient for the user to walk to the movable ladder body, and the supporting plate can be stored when it is not needed, effectively solving the inconvenience caused by the user climbing the movable ladder body, and the operation flexibility is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the side section structure of the utility model;

[0022] Figure 5 It is a state structure schematic diagram of the utility model.

[0023] In the figure: 1. movable ladder body; 2. bottom plate; 3. pedal frame; 4. load-bearing base; 5. loading plate; 6. universal wheel; 7. adjustment assembly; 71. main shaft; 72. worm gear; 73. slave shaft; 74. worm; 75. support plate; 76. servo motor; 8. guide rod; 9. annular guide groove; 10. mounting sleeve a; 11. connecting rod; 12. connecting plate; 13. mounting sleeve b; 14. rotating rod; 15. bearing plate; 16. handle; 17. anti-slip pad; 18. guide ring; 19. guide groove. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the embodiments.

[0025] See also Figure 1-5 The utility model provides a self-locking intelligent movable ladder, including a movable ladder body 1, and also includes a bottom plate 2, the bottom plate 2 is fixed to the bottom end side wall of the movable ladder body 1, a pedal frame 3 is fixed to the top side wall of the bottom plate 2, the outer side wall of the bottom plate 2 is rotatably connected to a load-bearing base 4, a plurality of loading plates 5 distributed in a circle are fixed to the bottom side wall of the load-bearing base 4, a universal wheel 6 is fixed to the bottom side wall of the loading plate 5, and an adjustment component 7 adapted to the bottom plate 2 is arranged on one side of the load-bearing base 4.

[0026] Further as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it is worth explaining in detail that the adjusting component 7 includes a main shaft 71, which is fixed to the side wall of the bottom end of the base plate 2, and the other end of the main shaft 71 is rotatably connected to the side wall of one side of the load-bearing base 4, and a worm gear 72 is tightly sleeved on the outer surface of the main shaft 71, and a side wall of one side of the load-bearing base 4 is rotatably connected to a slave shaft 73, and a worm 74 is tightly sleeved on the outer surface of the slave shaft 73, and the worm 74 is meshingly connected to the worm gear 72; a support plate 75, the support plate 75 is fixed to the outer side wall of the load-bearing base 4, and a servo motor 76 is fixed to the top side wall of the support plate 75, and one end of the output shaft of the servo motor 76 is coaxially fixed with one end of the slave shaft 73. Through the setting of the adjusting component 7, the angular position of the movable ladder body 1 can be adjusted according to actual needs, which is especially suitable for use in narrow working areas, has a wide range of applications, can effectively meet the use needs in different application working environments, and has strong practicality.

[0027] Further as Figure 4 and Figure 5 As shown, it is worth explaining in detail that a plurality of guide rods 8 distributed in a circle are fixed to the side wall at the bottom end of the base plate 2, an annular guide groove 9 is opened on the inner side wall of the load-bearing base 4, and the guide rods 8 are slidably connected with the annular guide groove 9. By sliding the guide rods 8 in the annular guide groove 9, it can not only guide the base plate 2, but also greatly improve the stability and smoothness of the base plate 2 during operation.

[0028] This solution has the following working process: when the device is needed to be used for tank truck loading and unloading, first move the device to the specified position, lock the universal wheel 6, and pull the handle 16 to move the load-bearing plate 15, driving the connecting plate 12 to move until the load-bearing plate 15 is in contact with the ground of the working area. When the angular position of the movable ladder body 1 needs to be adjusted, the servo motor 76 is driven to make the slave shaft 73 rotate synchronously, driving the worm 74 to rotate synchronously, and utilizing the meshing transmission effect between the worm 74 and the worm wheel 72 to make the main shaft 71 rotate synchronously, thereby driving the bottom plate 2 to rotate synchronously, thereby achieving the purpose of adjusting the movable ladder body 1.

[0029] According to the above working process, it can be known that: through the setting of the adjustment component 7, the angular position of the movable ladder body 1 can be adjusted according to actual needs, which is particularly suitable for use in narrow working areas. It has a wide range of applications and can effectively meet the use needs of different application working environments. It is highly practical. Through the setting of the connecting plate 12 and the supporting plate 15, the position of the supporting plate 15 can be adjusted according to needs, which is convenient for the user to walk to the movable ladder body 1, and the supporting plate 15 can be stored when it is not needed, which effectively solves the inconvenience caused by the user climbing the movable ladder body 1, and has high operational flexibility.

[0030] Further as Figure 2 and Figure 3As shown, it is worth specifically explaining that two symmetrically distributed mounting sleeves a10 are fixed to the inner side wall of the pedal frame 3, and a connecting rod 11 is slidably connected inside the mounting sleeve a10, and a connecting plate 12 is slidably connected to the top side wall of the bottom plate 2, and a plurality of symmetrically distributed mounting sleeves b13 are fixed to the top side wall of the connecting plate 12, one end of the connecting rod 11 is fixed to the side wall of one side of the mounting sleeve b13, and a rotating rod 14 is fixed to the side wall of one side of the connecting plate 12, and a bearing plate 15 is rotatably connected to the outer surface of the rotating rod 14. Through the arrangement of the connecting plate 12 and the bearing plate 15, the position of the bearing plate 15 can be adjusted according to demand, which is convenient for the user to walk to the movable ladder body 1, and the bearing plate 15 can be stored when it is not needed, effectively solving the inconvenience caused by the user climbing the movable ladder body 1, and the operation flexibility is high.

[0031] Further as Figure 2 and Figure 3 As shown, it is worth explaining in detail that the side wall of the supporting plate 15 adjacent to the connecting plate 12 is set as a smooth arc surface, and two symmetrically distributed handles 16 are fixed to the top side wall of the supporting plate 15, and a plurality of equidistantly distributed anti-skid pads 17 are fixed to the top side wall of the supporting plate 15. The setting of the anti-skid pads 17 has an anti-skid effect on the user when going up, thereby reducing the situation of personal injury caused by slipping when going uphill, and the setting of the handle 16 makes it convenient for the staff to pull the supporting plate 15 to move and store it, and the operation is flexible and convenient.

[0032] Further as Figure 5 As shown, it is worth explaining in detail that a guide ring 18 is fixed to the outer side wall of the bottom plate 2, and a guide groove 19 is opened on the inner side wall of the load-bearing base 4. The guide ring 18 is slidably connected to the guide groove 19. The central axis of the base and the central axis of the load-bearing base 4 are arranged in a colinear manner. The guide ring 18 slides in the guide groove 19, which plays a guiding role for the bottom plate 2 when it rotates, and can increase the stability when the bottom plate 2 rotates, thereby improving the service life of the bottom plate 2 and the load-bearing base 4 to a certain extent, and reducing the gravity of the bottom plate 2 exerting pressure on the load-bearing base 4 when it rotates.

[0033] In summary: the guide rod 8 slides in the annular guide groove 9, which not only guides the base plate 2, but also greatly improves the stability and smoothness of the base plate 2 during operation. The setting of the anti-skid pad 17 can play a role in preventing users from slipping when going uphill, thereby reducing the risk of personal injury caused by slipping when going uphill. The setting of the handle 16 makes it convenient for staff to pull the load-bearing plate 15 to move and store it, and the operation is flexible and convenient. The guide ring 18 slides in the guide groove 19, which guides the base plate 2 when it rotates, and can greatly improve the stability when the base plate 2 rotates, thereby improving the service life of the base plate 2 and the load-bearing base 4 to a certain extent, and reducing the gravity of the base plate 2 on the load-bearing base 4 when it rotates.

[0034] The movable ladder body 1 and the servo motor 76 can be purchased on the market. Both the movable ladder body 1 and the servo motor 76 are equipped with power supplies, which are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

Claims

1. A self-locking intelligent ladder, comprising a ladder body (1), characterized in that: It also comprises a bottom plate (2), the bottom plate (2) being fixed to the side wall at the bottom end of the movable ladder body (1), a pedal frame (3) being fixed to the top side wall of the bottom plate (2), a load-bearing base (4) being rotatably connected to the outer side wall of the bottom plate (2), a plurality of loading plates (5) distributed in a circumferential manner being fixed to the bottom side wall of the load-bearing base (4), a universal wheel (6) being fixed to the bottom side wall of the loading plate (5), and an adjustment component (7) adapted to the bottom plate (2) being arranged on one side of the load-bearing base (4); The adjustment assembly (7) comprises a main shaft (71), the main shaft (71) being fixed to the side wall at the bottom end of the base plate (2), the other end of the main shaft (71) being rotatably connected to the side wall of one side of the load-bearing base (4), the outer surface of the main shaft (71) being tightly sleeved with a worm wheel (72), the side wall of one side of the load-bearing base (4) being rotatably connected to a slave shaft (73), the outer surface of the slave shaft (73) being tightly sleeved with a worm (74), the worm (74) being meshingly connected to the worm wheel (72); and a support plate (75), the support plate (75) being fixed to the outer side wall of the load-bearing base (4), the top side wall of the support plate (75) being fixed with a servo motor (76), one end of an output shaft of the servo motor (76) being coaxially fixed to one end of the slave shaft (73).

2. The self-locking intelligent movable ladder according to claim 1, characterized in that: A plurality of guide rods (8) distributed in a circumferential manner are fixed to the side wall at the bottom end of the bottom plate (2), an annular guide groove (9) is provided on the inner side wall of the load-bearing base (4), and the guide rods (8) are slidably connected to the annular guide groove (9).

3. The self-locking intelligent movable ladder according to claim 2 is characterized in that: Two symmetrically distributed mounting sleeves a (10) are fixed to the inner side wall of the pedal frame (3); a connecting rod (11) is slidably connected inside the mounting sleeve a (10); a connecting plate (12) is slidably connected to the top side wall of the bottom plate (2); a plurality of symmetrically distributed mounting sleeves b (13) are fixed to the top side wall of the connecting plate (12); one end of the connecting rod (11) is fixed to a side wall of one side of the mounting sleeve b (13); a rotating rod (14) is fixed to a side wall of one side of the connecting plate (12); and a bearing plate (15) is rotatably connected to the outer surface of the rotating rod (14).

4. The self-locking intelligent movable ladder according to claim 3 is characterized in that: The side wall of the carrying plate (15) adjacent to the connecting plate (12) is provided in the form of a smooth arc surface, two symmetrically distributed handles (16) are fixed to the top side wall of the carrying plate (15), and a plurality of equidistantly distributed anti-slip pads (17) are fixed to the top side wall of the carrying plate (15).

5. The self-locking intelligent movable ladder according to claim 4 is characterized in that: A guide ring (18) is fixed to the outer side wall of the bottom plate (2), a guide groove (19) is provided on the inner side wall of the load-bearing base (4), the guide ring (18) is slidably connected to the guide groove (19), and the central axis of the base is colinearly arranged with the central axis of the load-bearing base (4).

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