Crawler-type stair-climbing conveying trolley

Abstract

The utility model relates to the technical field of stair climbing vehicles, and discloses a crawler-type stair climbing conveying trolley which comprises a base plate, the base plate is a rectangular plate, power shafts are rotationally connected to the two sides of the base plate, the power shafts are cylindrical, and the wall faces of the symmetrical power shafts on the two sides are in transmission connection with stair climbing crawlers respectively; the storage structure enables the device to transport objects more stably, the storage structure comprises a rack, a connecting edge and a carrying box, the rack is fixedly connected to the front position of the top of the base plate, the connecting edge is rotationally connected to the top of the rack, the carrying box is fixedly connected to the wall face of the connecting edge, and the carrying box is in a hollow rectangular box shape with the top open; by arranging the storage structure, the integrity of the objects during stair climbing transportation can be guaranteed, and the storage structure drives the objects needing to be transported to be kept in the same state all the time through the object carrying box which is kept perpendicular to the horizontal plane all the time.

Description

Technical Field

[0001] The utility model belongs to the technical field of stair climbing vehicles, in particular to a crawler type stair climbing and conveying trolley. Background Art

[0002] The stair climbing trolley is a new type of stair climbing tool for carrying objects. It uses its own motion execution mechanism to realize the action of going up and down stairs, thereby completing the purpose of going up and down stairs.

[0003] The prior art (publication number: CN217515173U) discloses a stair climbing trolley, comprising a frame, a support component, a driving component, a round tire, a height adjustment component and a polygonal tire; the support component is fixedly connected to a side wall of the frame, and the support component has a first mounting position and a second mounting position; the driving component is fixedly connected to the support component and is located at the first mounting position.

[0004] The prior art places the object on a device and then places it on the stairs to transport the object upstairs. Although the prior art can transport goods upstairs, the objects on the device will fall down when placed on the stairs, which makes the prior art unsuitable for transporting easily damaged objects such as cakes.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the technical problem that the above-mentioned prior art is not suitable for transporting easily damaged objects, the basic concept of the technical solution adopted by the utility model is:

[0007] A crawler type stair climbing conveying vehicle comprises: a base plate, the base plate is rectangular, two sides of the base plate are rotatably connected with power shafts, the power shafts are cylindrical, and the wall surfaces of the symmetrical power shafts on each side are respectively connected with stair climbing crawlers;

[0008] The storage structure can make the device more stable when transporting objects. The storage structure includes: a frame, a connecting edge and a cargo box. The frame is fixedly connected to the top front position of the base plate, the connecting edge is rotatably connected to the top of the frame, and the cargo box is fixedly connected to the wall of the connecting edge. The cargo box is in the shape of a hollow rectangular box with an open top.

[0009] As a preferred embodiment of the utility model, the frame is a U-shaped rod with an opening facing upward, the connecting edge is rotatably connected to the opening at the top of the frame, the connecting edge is a rectangular frame, and the cargo box is fixedly connected to the cavity of the connecting edge.

[0010] As a preferred embodiment of the utility model, the storage structure also includes a rotation groove, a rotation column, a resistance rod and a lifting rope. The rotation groove is symmetrically opened in the top opening of the rotation groove. The rotation column is rotatably connected in each rotation groove. The rotation column is also symmetrically fixedly connected to the two side walls of the connecting edge. The resistance rod is fixedly connected to the bottom of the connecting edge. One end of the lifting rope is fixedly connected to the outer wall of the cargo box, and the other end of the lifting rope is fixedly connected to the inner wall of the cavity of the connecting edge.

[0011] As a preferred embodiment of the utility model, the rotating column is cylindrical, the rotating groove can adapt to the rotation of the rotating column, the limiting groove is an L-shaped rod, the bottom of the limiting groove can contact the bottom of the rear wall of the frame, and the lifting ropes are evenly arranged on the surrounding walls of the cargo box, and the two ends of each lifting rope are respectively connected to the cargo box and the connecting edge.

[0012] As a preferred embodiment of the utility model, the rear wall of the frame is provided with an anti-slip structure, which includes a rear rod, a slider, a rolling groove, a roller and a roller. The rear rod is fixedly connected to the rear wall of the frame, the slider is fixedly connected to the bottom of the rear rod, the rolling groove is penetrated and opened below the side wall of the slider, the roller is rotatably connected in the rolling groove, and the roller is fixedly connected to both sides of the roller.

[0013] As a preferred embodiment of the utility model, the slider is in the form of a right-angled triangle with the inclined surface facing downward, the inclined surface of the slider faces the top of the substrate, the rolling groove can adapt to the rotation of the roller, the roller is cylindrical, and the roller is round wheel-shaped. The anti-slip structure also includes a limit groove, a spring groove, a spring block, a clamping block and a rolling block. The limit groove is opened on the bottom wall of the slider, the spring groove is opened on the wall of the slider above the limit groove, the spring block is elastically connected in the spring groove by a spring, the clamping block is fixedly connected to the bottom of the spring block, and the rolling block is fixedly connected to the arc surface of the roller.

[0014] As a preferred embodiment of the utility model, the spring groove is a T-shaped groove, which can adapt to the sliding of the spring block, the spring block is a T-shaped block, the rolling block is fixedly connected to the wall surface of the roller in the limiting groove, the clamping block is a right-angled triangle block, and the rolling block is also a triangular block. A plurality of rolling blocks are arranged on the wall surface of the roller, and the clamping block can be clamped with the spacing between each adjacent rolling blocks.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. By setting up a storage structure, the integrity of items can be ensured when they are transported by climbing stairs, because the storage structure drives the objects to be transported to always remain in the same state by keeping the cargo box perpendicular to the horizontal plane. Therefore, compared with the existing technology, this solution is more suitable for transporting fragile objects.

[0017] 2. By setting up the anti-skid structure, the unidirectionally rotating roller can reduce the impact of the device when it slides by increasing the friction force when the device slides, and can reduce the impact on objects on the device when the device slides.

[0018] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 This is a disassembled diagram of the storage structure of the utility model;

[0022] Figure 3 This is a disassembled diagram of the slider and roller of the utility model;

[0023] Figure 4 This is an exploded view of the rear wall structure of the slider of the utility model;

[0024] Figure 5 This is a schematic diagram of the connection between the spring block and the rolling block of the utility model.

[0025] In the figure: 20, base plate; 21, power shaft; 22, climbing crawler; 30, frame; 31, rotation groove; 32, rotation column; 33, connecting edge; 34, resistance rod; 35, cargo box; 36, lifting rope; 40, rear rod; 41, slider; 42, rolling groove; 43, limiting groove; 44, roller; 45, roller; 46, spring groove; 47, spring block; 48, clamping block; 49, rolling block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0027] like Figure 1 As shown, a crawler type stair climbing transport vehicle comprises: a base plate 20, the base plate 20 is a rectangular plate, both sides of the base plate 20 are rotatably connected with a power shaft 21, the power shaft 21 is cylindrical, the wall surfaces of the symmetrical power shaft 21 on each side are respectively connected with a stair climbing track 22 in a transmission manner, the outer wall surfaces of the stair climbing track 22 are evenly and fixedly connected with a rectangular block for anti-slip, the power shaft 21 is driven by a motor at the bottom of the base plate 20, and the motor is electrically connected to a corresponding power supply. This is an existing technology, so it will not be elaborated here.

[0028] like Figure 1 , Figure 2 and Figure 3As shown, the storage structure can make the device more stable when transporting objects. The storage structure includes: a frame 30, a connecting edge 33 and a cargo box 35. The frame 30 is fixedly connected to the top front position of the base plate 20, the connecting edge 33 is rotatably connected to the top of the frame 30, and the cargo box 35 is fixedly connected to the wall of the connecting edge 33. The cargo box 35 is a hollow rectangular box with an open top.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the frame 30 is a U-shaped rod with an opening facing upward, the connecting edge 33 is rotatably connected to the opening at the top of the frame 30, the connecting edge 33 is a rectangular frame, the cargo box 35 is fixedly connected to the cavity of the connecting edge 33, and the storage structure also includes a self-rotation groove 31, a self-rotation column 32, a resistance rod 34 and a hanging rope 36. The self-rotation grooves 31 are symmetrically opened in the top opening of the self-rotation grooves 31, and the self-rotation column 32 is rotatably connected in each self-rotation groove 31. The self-rotation column 32 is also symmetrically fixedly connected to the two side walls of the connecting edge 33, and the resistance rod 34 and the hanging rope 36 are fixedly connected to the two side walls of the connecting edge 33. 4 is fixedly connected to the bottom of the connecting edge 33, one end of the hanging rope 36 is fixedly connected to the outer wall of the cargo box 35, and the other end of the hanging rope 36 is fixedly connected to the inner wall of the cavity of the connecting edge 33, the self-rotating column 32 is cylindrical, the self-rotating groove 31 can adapt to the rotation of the self-rotating column 32, the limiting groove 43 is an L-shaped rod, and the bottom of the limiting groove 43 can contact the bottom of the rear wall of the frame 30. The hanging ropes 36 are evenly arranged on the surrounding walls of the cargo box 35, and the two ends of each hanging rope 36 are respectively connected to the cargo box 35 and the connecting edge 33;

[0030] During specific use, first, the object to be transported is placed into the cavity of the rack 30 from the top opening of the rack 30 for transportation. When the object needs to be transported, the device is placed on the stair steps and the rectangular blocks on the wall of the climbing track 22 are clamped on each step. At this time, the power is turned on, the motor drives the power shaft 21 to rotate, and the power shaft 21 drives the climbing track 22 to transmit, and the rectangular blocks on the wall of the climbing track 22 are used to climb on the steps. When the climbing track 22 starts to climb, the objects in the cavity of the cargo box 35 will not be affected by the inclination of the base plate 20 because the rotating column 32 rotates in the rotating groove 31. The influence of the cargo box 35, the hanging rope 36, the connecting edge 33 and the objects in the cavity of the cargo box 35 is maintained in a state perpendicular to the horizontal plane. After the climbing crawler 22 completes the climbing of the steps, the base plate 20 will remain parallel to the ground. During the process of the base plate 20 being converted into a parallel state, the cargo box 35, the hanging rope 36, the connecting edge 33 and the objects in the cavity of the cargo box 35 will automatically cause the rotating column 32 to rotate in the rotating groove 31, so that the connecting edge 33, the cargo box 35 and the hanging rope 36 are always maintained in a state perpendicular to the horizontal plane, and when the base plate 20 is in a horizontal state, the front wall end of the contact rod 34 will contact the rear wall of the frame 30;

[0031] In summary, by setting up a storage structure, the integrity of items can be ensured when they are transported by climbing stairs. This is because the storage structure keeps the cargo box 35 perpendicular to the horizontal plane at all times, thereby keeping the objects to be transported in the same state at all times. Therefore, compared with the prior art, this solution is more suitable for transporting fragile objects.

[0032] like Figure 1 , Figure 4 and Figure 5 As shown, the rear wall surface of the frame 30 is provided with an anti-skid structure, which includes a rear rod 40, a slider 41, a rolling groove 42, a roller 44 and a roller 45. The rear rod 40 is fixedly connected to the rear wall surface of the frame 30, the slider 41 is fixedly connected to the bottom of the rear rod 40, the rolling groove 42 runs through and is opened below the side wall surface of the slider 41, the roller 44 is rotatably connected in the rolling groove 42, and the roller 45 is fixedly connected to both sides of the roller 44. The slider 41 is a right triangle with the inclined surface facing downward, and the inclined surface of the slider 41 faces the top of the base plate 20. The rolling groove 42 can adapt to the rotation of the roller 44. The roller 44 is cylindrical, and the roller 45 is round. The anti-skid structure also includes a limit groove 43, an elastic groove 46, an elastic block 47, a block 48, and a clamping block 49. 8 and rolling block 49, the limiting groove 43 is provided on the bottom wall of the slider 41, the spring groove 46 is provided on the wall of the slider 41 above the limiting groove 43, the spring block 47 is elastically connected in the spring groove 46 by a spring, the clamping block 48 is fixedly connected to the bottom of the spring block 47, the rolling block 49 is fixedly connected to the arc surface of the roller 44, the spring groove 46 is a T-shaped groove, the spring groove 46 can adapt to the sliding of the spring block 47, the spring block 47 is a T-shaped block, the rolling block 49 is fixedly connected to the wall surface of the roller 44 in the limiting groove 43, the clamping block 48 is a right-angled triangle block, the rolling block 49 is also a triangle block, and a plurality of rolling blocks 49 are provided on the wall surface of the roller 44, and the clamping block 48 can be clamped with the spacing of each adjacent rolling block 49;

[0033] When in use, when the base plate 20 is tilted on the step, the roller 45 will also contact the step at the corresponding position, and when the base plate 20 starts to climb the step, the inclined surface of the slider 41 will contact the corner of the step it passes through. When the roller 45 moves along the top of the step, the roller 45 will drive the roller 44 to rotate in the rolling groove 42 due to the friction with the step. The roller 44 will also drive the roller block 49 to rotate at the same time when rotating. The roller block 49 will contact the bottom of the block 48 when rotating. Each roller block 49 will push the block 48 upward when contacting the block 48, and the block 48 will drive the spring block 47 to move upward. The spring block 47 will move upward in the spring groove 46. At this time, the spring at the top of the spring block 47 will be compressed. When the base plate 20 slides down, when the roller 45 contacts the top of the step, the wall surface of the block 48 and the wall surface of the roller block 49 will conflict and the roller 45 will not rotate, and the roller 45 will conflict with the top of the step.

[0034] In summary, by providing an anti-skid structure, the unidirectionally rotating roller 45 can reduce the impact of the device when it slides by increasing the friction force when the device slides, thereby reducing the impact on objects on the device when the device slides.

[0035] Working principle: First, put the object to be transported into the cavity of the rack 30 from the top opening of the rack 30 for transportation. When the object needs to be transported, place the device on the stair steps and clamp the rectangular blocks on the wall of the climbing track 22 on each step. At this time, turn on the power, the motor will drive the power shaft 21 to rotate, and the power shaft 21 will drive the climbing track 22 to transmit, and climb on the steps through the rectangular blocks on the wall of the climbing track 22. When the climbing track 22 starts to climb, the objects in the cavity of the cargo box 35 will not be affected by the inclination of the base plate 20 because the rotating column 32 rotates in the rotating groove 31. The cargo box 35, the lifting rope 36, the connecting edge 33 and the objects in the cavity of the cargo box 35 are maintained in a perpendicular state to the horizontal plane. After the climbing track 22 completes climbing the steps, the base plate 20 will remain parallel to the ground. During the process of the base plate 20 being converted into a parallel state, the cargo box 35, the lifting rope 36, the connecting edge 33 and the objects in the cavity of the cargo box 35 will automatically cause the rotating column 32 to rotate in the rotating groove 31, so that the connecting edge 33, the cargo box 35 and the lifting rope 36 are always maintained in a perpendicular state to the horizontal plane, and when the base plate 20 is in a horizontal state, the front wall end of the contact rod 34 will contact the rear wall of the frame 30.

[0036] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A crawler type stair climbing transport vehicle, characterized in that: include: The base plate (20) is a rectangular plate, and two sides of the base plate (20) are rotatably connected to power shafts (21), the power shafts (21) are cylindrical, and the wall surfaces of the symmetrical power shafts (21) on each side are respectively connected to stair climbing tracks (22); The storage structure can make the device more stable when transporting objects. The storage structure comprises: a frame (30), a connecting edge (33) and a cargo box (35). The frame (30) is fixedly connected to the top front position of the base plate (20), the connecting edge (33) is rotatably connected to the top of the frame (30), and the cargo box (35) is fixedly connected to the wall surface of the connecting edge (33). The cargo box (35) is in the shape of a hollow rectangular box with an open top.

2. The crawler type stair climbing transport vehicle according to claim 1, characterized in that: The frame (30) is a U-shaped rod with an opening facing upward, the connecting edge (33) is rotatably connected to the opening at the top of the frame (30), the connecting edge (33) is a rectangular frame, and the cargo box (35) is fixedly connected to the cavity of the connecting edge (33).

3. The crawler type stair climbing conveying vehicle according to claim 1 is characterized in that: The storage structure further comprises a rotation groove (31), a rotation column (32), a resistance rod (34) and a suspension rope (36); the rotation groove (31) is symmetrically arranged in the top opening of the rotation groove (31); the rotation column (32) is rotatably connected in each rotation groove (31); the rotation column (32) is also symmetrically fixedly connected to the two side walls of the connecting edge (33); the resistance rod (34) is fixedly connected to the bottom of the connecting edge (33); one end of the suspension rope (36) is fixedly connected to the outer wall of the cargo box (35); and the other end of the suspension rope (36) is fixedly connected to the inner wall of the cavity of the connecting edge (33).

4. The crawler type stair climbing transport vehicle according to claim 3 is characterized in that: The rotating column (32) is cylindrical, the rotating groove (31) can adapt to the rotation of the rotating column (32), the limiting groove (43) is an L-shaped rod, the bottom of the limiting groove (43) can contact the bottom of the rear wall of the frame (30), and the hanging ropes (36) are evenly arranged on the surrounding walls of the cargo box (35), and the two ends of each hanging rope (36) are respectively connected to the cargo box (35) and the connecting edge (33).

5. The crawler type stair climbing transport vehicle according to claim 4, characterized in that: The rear wall surface of the frame (30) is provided with an anti-skid structure, which comprises a rear rod (40), a slider (41), a rolling groove (42), a roller (44) and a roller (45); the rear rod (40) is fixedly connected to the rear wall surface of the frame (30); the slider (41) is fixedly connected to the bottom of the rear rod (40); the rolling groove (42) is penetrated and opened below the side wall surface of the slider (41); the roller (44) is rotatably connected in the rolling groove (42); and the roller (45) is fixedly connected to both sides of the roller (44).

6. The crawler type stair climbing transport vehicle according to claim 5, characterized in that: The slider (41) is in the shape of a right triangle with an inclined surface facing downwards, the inclined surface of the slider (41) faces the top of the base plate (20), the rolling groove (42) can adapt to the rotation of the roller (44), the roller (44) is in the shape of a cylinder, the roller (45) is in the shape of a round wheel, the anti-slip structure also includes a limiting groove (43), an elastic groove (46), an elastic block (47), a clamping block (48) and a rolling block (49), the limiting groove (43) is arranged on the bottom wall surface of the slider (41), the elastic groove (46) is arranged on the wall surface of the slider (41) above the limiting groove (43), the elastic block (47) is elastically connected to the elastic groove (46) by a spring, the clamping block (48) is fixedly connected to the bottom of the elastic block (47), and the rolling block (49) is fixedly connected to the arc surface of the roller (44).

7. The crawler type stair climbing transport vehicle according to claim 6, characterized in that: The elastic groove (46) is a T-shaped groove, and the elastic groove (46) can adapt to the sliding of the elastic block (47). The elastic block (47) is a T-shaped block. The rolling block (49) is fixedly connected to the wall surface of the roller (44) in the limiting groove (43). The clamping block (48) is a right-angled triangle block. The rolling block (49) is also a triangle block. A plurality of rolling blocks (49) are arranged on the wall surface of the roller (44). The clamping block (48) can be clamped with the spacing between each adjacent rolling block (49).

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