Trolley top walking internal lifting storage system

Abstract

The invention belongs to the technical field of intelligent storage equipment manufacturing, and particularly relates to a trolley top walking internal lifting storage system which comprises a trolley, a lifting frame and a storage basket, X-direction moving wheels and Y-direction moving wheels are arranged on the trolley, a switcher is arranged on the trolley, and the execution end of the switcher is in control connection with the X-direction moving wheels and the Y-direction moving wheels. A plurality of X-direction cross beams allowing the X-direction moving wheels to roll are arranged at the top of the lifting frame, a cavity with a downward opening is formed in the trolley, a lifting device is arranged in the cavity of the trolley, the lifting device is provided with a hook matched with the storage basket through a lifting rope, and when the lifting device lifts the storage basket into the cavity, the storage basket can be completely located in the cavity. The projection of a quadrangle formed between any two adjacent X-direction cross beams and any two adjacent Y-direction longitudinal beams on the horizontal plane can surround the projection of the storage basket in the horizontal plane; the problem that the gravity of a hoisted object and the gravity of the trolley are not on the same vertical line is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of intelligent storage equipment manufacturing, and specifically relates to a trolley top travel and internal lifting storage system. Background Art

[0002] At present, the direction of the gravity of the hoisted object on the lifting trolley used for intelligent storage equipment is located on the side of the lifting trolley, that is, the gravity of the hoisted object and the gravity of the trolley are not on the same vertical line, so the lifting trolley will be skewed or overturned. Therefore, it is necessary to set grooves or convex ridges on the lifting frame during design, and then set components that cooperate with the grooves or convex ridges on the lifting trolley to provide grip to prevent the trolley from tilting or overturning, but the processing of the grooves or convex ridges is difficult. Summary of the invention

[0003] The purpose of this application is mainly to address the shortcomings of the prior art. A cavity with a downward opening and used for lifting objects is set inside the trolley, and a lifting and storage system with an internal movement on the top of the trolley is designed, thereby solving the problem that the gravity of the lifted object and the gravity of the trolley are not on the same vertical line.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is:

[0005] A trolley top walking internal lifting storage system comprises a trolley, a lifting frame, and a storage basket. The trolley is provided with an X-direction moving wheel and a Y-direction moving wheel. The trolley is provided with a switch. The execution end of the switch controls the connection between the X-direction moving wheel and the Y-direction moving wheel. The top of the lifting frame is provided with a plurality of X-direction cross beams for the X-direction moving wheel to roll. The top of the lifting frame is provided with a plurality of Y-direction longitudinal beams for the Y-direction moving wheel to roll. Any two of the X-direction cross beams are parallel to each other, any two of the Y-direction longitudinal beams are parallel to each other, and any one of the X-direction cross beams is parallel to each other. The storage basket is arranged on the trolley, and the storage basket is arranged on the trolley. ..., and the storage basket is arranged on the trolley. The storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket is arranged on the trolley, and the storage basket

[0006] Preferably, the switch includes a lifting device and a mobile frame, the mobile frame is fixedly arranged on the trolley by the lifting device, the mobile frame is provided with a Y-direction moving wheel, when the mobile frame descends under the action of the lifting device, the lowermost end of the Y-direction moving wheel is lower than the lowermost end of the X-direction moving wheel, when the mobile frame rises under the action of the lifting device, the lowermost end of the X-direction moving wheel is lower than the lowermost end of the Y-direction moving wheel, and the mobile frame is provided with a channel cooperating with the cavity.

[0007] Preferably, the X-direction moving wheels are arranged on the front side wall and the rear side wall of the trolley, the moving frame includes a bottom plate and an ear plate, the ear plates are arranged on the left and right ends of the bottom plate, the channel is arranged on the bottom plate, the Y-direction moving wheels are arranged on the two ear plates, and the wheel axle of the Y-direction moving wheel is perpendicular to the wheel axle of the X-direction moving wheel.

[0008] Preferably, the lifting device comprises four lifting units, and the four lifting units are evenly distributed around the channel.

[0009] Preferably, the lifting device further comprises a first drive motor and a synchronous transmission, and the output end of the first drive motor is connected to the four lifting units through the synchronous transmission control.

[0010] Preferably, the lifting unit includes a base, a screw rod, a top column, and a driving nut. The top column is fixedly connected to the lower surface of the base plate. The base is provided with a mounting cavity opening upward. The driving nut is coaxially rotatably arranged on the base at the top of the mounting cavity. The top end of the screw rod is rotatably connected to the top column. The driving nut is threadedly connected to both ends of the screw rod, and the driving nut is transmission-connected to the transmission output end of the synchronous transmission.

[0011] Preferably, the synchronous transmission comprises three transmission rods, a first bevel gear, a second bevel gear, and an active rod, a first bevel gear is arranged at each end of each transmission rod, a first bevel gear is also arranged at one end of the active rod, a first gear is coaxially fixedly provided on each driving nut, two second gears meshing with the first gear are arranged around the driving nut on the base, a second bevel gear is coaxially fixedly provided on the upper end surface of each second gear, the connecting line segments between the two second gears and the first gear are located on the same plane parallel to the upper surface of the base, the angle between the two connecting line segments is ninety degrees, and the lengths of the two connecting line segments are equal, the four bases are respectively located at four vertices on a virtual rectangle, a transmission rod is arranged on each of the three sides of the virtual rectangle, the first bevel gears at both ends of the transmission rod are meshed with a second bevel gear on the base, the first bevel gear on the active rod is meshed with one of the second bevel gears on the base at a side of the virtual rectangle where no transmission rod is arranged, and the output shaft of the first driving motor is transmission-connected to the active rod.

[0012] Preferably, the lifting device includes a lifting rope and four second drive motors, the four second drive motors are synchronized, and each second drive motor has a pulley coaxially provided on its output shaft. The diameters of the four pulleys are equal, and one end of the lifting rope is fixedly connected to the circumferential surface of each pulley. The ends of the four lifting ropes away from the pulleys are commonly fixedly connected to the upper surface of a heavy plate, and the hook is arranged on the lower surface of the heavy plate.

[0013] Preferably, the hook comprises a first hook body and a second hook body, and the first hook body and the second hook body are both L-shaped;

[0014] One end of the vertical part on the L-shape of the first hook body away from the transverse part is fixedly connected to the lower surface of the weight plate, the L-shaped vertical part of the first hook body is perpendicular to the lower surface of the weight plate, and a first inclined surface is provided on the lower surface of one end of the L-shaped transverse part of the first hook body facing away from the vertical part, and a distance from one end of the first inclined surface facing the free end of the L-shaped transverse part of the first hook body to the upper surface of the L-shaped transverse part of the first hook body is shorter than a distance from one end of the first inclined surface facing away from the free end of the L-shaped transverse part of the first hook body to the upper surface of the L-shaped transverse part of the first hook body;

[0015] One end of the vertical part on the L-shape of the second hook body away from the transverse part is fixedly connected to the lower surface of the weight plate, the L-shaped vertical part of the second hook body is perpendicular to the lower surface of the weight plate, and a second inclined surface is provided on the lower surface of one end of the L-shaped transverse part of the second hook body facing away from the vertical part, and the distance from one end of the second inclined surface facing the free end of the L-shaped transverse part of the second hook body to the upper surface of the L-shaped transverse part of the second hook body is smaller than the distance from one end of the second inclined surface facing away from the free end of the L-shaped transverse part of the second hook body to the upper surface of the L-shaped transverse part of the second hook body;

[0016] A gap is preset between the L-shaped vertical portion of the first hook body and the vertical portion of the second hook body, the L-shaped horizontal portion of the first hook body is located on a side of the L-shaped vertical portion of the first hook body facing away from the second hook body, the L-shaped horizontal portion of the second hook body is located on a side of the L-shaped vertical portion of the second hook body facing away from the first hook body, and both the L-shaped vertical portion of the first hook body and the L-shaped vertical portion of the second hook body are elastic;

[0017] A horizontal plate parallel to the bottom wall of the storage basket is arranged on the side wall of the storage basket near the opening, and a hanging opening is arranged on the horizontal plate, and a length of the hanging opening is greater than a distance between an end of the first inclined surface facing the second hook body and an end of the second inclined surface facing the first hook body, and a length of the hanging opening is less than a distance between an end of the first inclined surface facing away from the second hook body and an end of the second inclined surface facing away from the first hook body.

[0018] Preferably, the X-direction cross beam is provided with a wheel groove cooperating with the X-direction moving wheel, and the length line of the wheel groove on the X-direction cross beam is parallel to the length line of the X-direction cross beam; the Y-direction longitudinal beam is provided with a wheel groove cooperating with the Y-direction moving wheel, and the wheel groove on the Y-direction longitudinal beam is parallel to the length line of the Y-direction longitudinal beam; and the wheel groove on the X-direction cross beam at the intersection of the X-direction cross beam and the Y-direction longitudinal beam is connected to the wheel groove on the Y-direction longitudinal beam.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] 1. The present application adopts the method of setting a cavity with a downward opening inside the trolley for lifting objects, and designs a lifting and storage system inside the top of the trolley, thereby solving the problem that the gravity of the lifted object and the gravity of the trolley are not on the same vertical line.

[0021] 2. In the present application, since the cavity is arranged inside the trolley, the trolley can be prevented from tilting. That is, such an arrangement makes all the X-direction moving wheels on the trolley evenly distributed on both sides of the center of gravity of the trolley. Similarly, all the Y-direction moving wheels on the trolley are evenly distributed on both sides of the center of gravity of the trolley, so that the storage basket will not tilt after being lifted. Since the projection of the quadrilateral formed between any two adjacent X-direction cross beams and any two adjacent Y-direction longitudinal beams on the horizontal plane can surround the projection of the storage basket in the horizontal plane, the X-direction cross beams and the Y-direction longitudinal beams intersect with each other to form a plurality of shapes projected as rectangles in the horizontal plane. These rectangular shapes enable the lifting device to lift the storage basket under the lifting frame onto the lifting frame when lifting the storage basket. Since the storage basket can be completely located in the cavity when the lifting device lifts the storage basket into the cavity, the storage basket can be completely hidden in the cavity after being lifted into the cavity, thereby preventing the lower end of the storage basket from hitting the Y-direction longitudinal beam or the X-direction cross beam and affecting the movement of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the small vehicle in this application;

[0023] Figure 2 This is a schematic diagram of the structure after the Y-direction moving wheel and the switch are removed from the trolley;

[0024] Figure 3 It is a structural schematic diagram of the lifting device;

[0025] Figure 4 for Figure 3 Exploded diagram of

[0026] Figure 5 A diagram showing the relationship between the first gear, the second gear, the transmission rod, the first bevel gear, the second bevel gear, and the screw rod;

[0027] Figure 6 It is the relationship diagram between the trolley and the lifting device;

[0028] Figure 7 It is a schematic diagram of the structure of the moving frame and the Y-direction moving wheel;

[0029] Figure 8 It is the relationship diagram between the Y-direction moving wheel and the lifting device;

[0030] Fig. 9 A schematic diagram showing the interior of the trolley and the lifting device;

[0031] Fig.10 To show the relationship between the hook and the weight plate;

[0032] Fig.11is a schematic diagram of the structure of a storage basket;

[0033] Fig.12 This is a schematic diagram of the trolley on the lifting frame.

[0034] Among them, 1. trolley; 2. lifting frame; 3. storage basket; 4. X-direction moving wheel; 5. Y-direction moving wheel; 6. X-direction crossbeam; 7. Y-direction longitudinal beam; 8. cavity; 9. bottom plate; 10. ear plate; 11. channel; 12. first drive motor; 13. base; 14. top column; 15. drive nut; 16. transmission rod; 17. first bevel gear; 18. second bevel gear; 19. active rod; 20. second drive motor; 21. lifting rope; 22. screw rod; 24. pulley; 25. heavy plate; 26. first hook body; 27. second hook body; 28. inclined plane; 29. ​​cross plate; 30. hanging mouth; 31. wheel groove. DETAILED DESCRIPTION

[0035] like Figure 1-12 As shown, a trolley top walking internal lifting storage system comprises a trolley 1, a lifting frame 2, and a storage basket 3. The trolley 1 is provided with an X-direction moving wheel 4 and a Y-direction moving wheel 5. The trolley 1 is provided with a switcher, and the execution end of the switcher controls the connection between the X-direction moving wheel 4 and the Y-direction moving wheel 5. The top of the lifting frame 2 is provided with a plurality of X-direction cross beams 6 for the X-direction moving wheel 4 to roll, and the top of the lifting frame 2 is provided with a plurality of Y-direction longitudinal beams 7 for the Y-direction moving wheel 5 to roll, any two of the X-direction cross beams 6 are parallel to each other, any two of the Y-direction longitudinal beams 7 are parallel to each other, and any one of the X-direction cross beams 6 is parallel to each other. The beams 6 intersect with all the Y-direction longitudinal beams 7, and any one of the Y-direction longitudinal beams 7 intersects with all the X-direction cross beams 6. A cavity 8 opening downward is provided inside the trolley 1. A lifting device is provided on the trolley 1 in the cavity 8. The lifting device is provided with a hook that cooperates with the storage basket 3 through a sling 21. When the lifting device lifts the storage basket 3 into the cavity 8, the storage basket 3 can be completely located in the cavity 8. The projection of a quadrilateral formed between any two adjacent X-direction cross beams 6 and any two adjacent Y-direction longitudinal beams 7 on the horizontal plane can surround the projection of the storage basket 3 on the horizontal plane.

[0036] In this embodiment, the trolley 1 moves along the length direction of the X-direction cross beam 6 on the lifting frame 2 through the X-direction moving wheels 4, thereby realizing the switching of the position on the X-axis. The trolley 1 moves along the length direction of the Y-direction longitudinal beam 7 on the lifting frame 2 through the Y-direction moving wheels 5 to realize the change of the position in the Y-direction direction. By setting the switch, when it is necessary to move the position on the X-axis, the movement mode of the trolley 1 is switched to the X-direction moving wheels 4, and when it is necessary to move the position on the Y-axis, the movement mode of the trolley 1 is switched to the Y-direction moving wheels 5. After the vehicle 1 moves to the preset position, the lifting device can lower the lifting rope 21, so that the hook on the lifting rope 21 hangs down to the bottom of the lifting frame 2 to hook the storage basket 3, thereby lifting the storage basket 3 into the cavity 8. Since the cavity 8 is arranged inside the vehicle 1, the vehicle 1 can be prevented from tilting. That is, such an arrangement makes all the X-direction moving wheels 4 on the vehicle 1 evenly distributed on both sides of the center of gravity of the vehicle. Similarly, all the Y-direction moving wheels 5 on the vehicle 1 are evenly distributed on both sides of the center of gravity of the vehicle, so that the storage basket 3 will not tilt after being lifted. Since the projection of the quadrilateral formed by any two adjacent X-direction cross beams 6 and any two adjacent Y-direction longitudinal beams 7 on the horizontal plane can surround the projection of the storage basket 3 on the horizontal plane, the X-direction cross beams 6 and the Y-direction longitudinal beams 7 intersect with each other to form a plurality of shapes projected as rectangles on the horizontal plane. These rectangular shapes enable the lifting device to lift the storage basket 3 under the lifting frame 2 onto the lifting frame 2 when lifting the storage basket 3. Since the storage basket 3 can be completely located in the cavity 8 when the lifting device lifts the storage basket 3 into the cavity 8, the storage basket 3 can be completely hidden in the cavity 8 after being lifted into the cavity 8, thereby preventing the lower end of the storage basket 3 from hitting the Y-direction longitudinal beam 7 or the X-direction cross beam 6 and affecting the movement of the trolley 1.

[0037] As a preferred mode, the switch includes a lifting device and a moving frame, the moving frame is fixedly arranged on the trolley 1 through the lifting device, the moving frame is provided with a Y-direction moving wheel 5, when the moving frame is lowered under the action of the lifting device, the lowermost end of the Y-direction moving wheel 5 is lower than the lowermost end of the X-direction moving wheel 4, when the moving frame is raised under the action of the lifting device, the lowermost end of the X-direction moving wheel 4 is lower than the lowermost end of the Y-direction moving wheel 5, and the moving frame is provided with a channel 11 that cooperates with the cavity 8. After such arrangement, when the lifting device drives the moving frame to rise, the Y-direction moving wheel 5 is suspended, so that the Y-direction moving wheel 5 does not contact the Y-direction longitudinal beam 7, at which time the X-direction moving wheel 4 contacts the X-direction cross beam 6, the trolley 1 moves along the length direction of the X-direction cross beam 6, and the Y-direction moving wheel 5 does not affect the movement of the trolley 1 along the length direction of the X-direction cross beam 6. On the contrary, when the lifting device drives the moving frame to descend, the X-direction moving wheel 4 is suspended, so that the X-direction moving wheel 4 does not contact the X-direction cross beam 6. At this time, the Y-direction moving wheel 5 contacts the Y-direction longitudinal beam 7, and the trolley 1 moves along the length direction of the Y-direction longitudinal beam 7. The X-direction moving wheel 4 will not affect the movement of the trolley 1 along the length direction of the Y-direction longitudinal beam 7. The channel 11 is set to allow the position of the cavity 8 to not affect the lifting of the storage basket 3 by the lifting device.

[0038] Specifically, the X-direction moving wheel 4 is arranged on the front side wall and the rear side wall of the trolley 1, the moving frame includes a bottom plate 9 and an ear plate 10, the ear plates 10 are arranged on the left and right ends of the bottom plate 9, the channel 11 is arranged on the bottom plate 9, and the Y-direction moving wheel 5 is arranged on the two ear plates 10, and the wheel axle of the Y-direction moving wheel 5 is perpendicular to the wheel axle of the X-direction moving wheel 4.

[0039] As a preferred embodiment, the lifting device includes four lifting units, and the four lifting units are evenly distributed around the channel 11. After such arrangement, it can ensure that the mobile rack is subjected to balanced force during lifting, and the lifting device will not affect the lifting device to lift the storage basket 3 into the cavity 8.

[0040] As a preferred embodiment, the lifting device further comprises a first drive motor 12 and a synchronous transmission, and the output end of the first drive motor 12 is connected to the four lifting units through the synchronous transmission control. In this way, four lifting units can be connected simultaneously through one synchronous transmission, which is easier to control than the case where each lifting unit is equipped with one first drive motor 12, and can also reduce the overall weight of the trolley 1, saving costs.

[0041] As a preferred embodiment, the lifting unit includes a base 13, a screw rod 22, a top column 14, and a driving nut 15. The top column 14 is fixedly connected to the lower surface of the bottom plate 9. The base 13 is provided with an installation cavity opening upward. The driving nut 15 is coaxially rotatably arranged on the top of the installation cavity on the base 13. The top end of the screw rod 22 is rotatably connected to the top column 14. The driving nut 15 is threadedly connected to the two ends of the screw rod 22. The driving nut 15 is transmission-connected to the transmission output end of the synchronous transmission. After such arrangement, the first driving motor 12 drives the driving nut 15 to rotate through the synchronous transmission, and the driving nut 15 rotates to drive the screw rod 22 to move up and down, thereby achieving the purpose of lifting. The design of the support 14 is to enable the lifting unit to be connected to the bottom plate 9 without interfering with the rotation of the screw rod 22.

[0042] As a preferred embodiment, the synchronous transmission includes three transmission rods 16, a first bevel gear 17, a second bevel gear 18, and an active rod 19. The first bevel gear 17 is provided at both ends of each transmission rod 16, and the first bevel gear 17 is also provided at one end of the active rod 19. A first gear 32 is coaxially fixedly sleeved on each of the driving nuts 15. Two second gears 33 meshing with the first gear 32 are provided on the base 13 around the driving nut 15. A second bevel gear 18 is coaxially fixedly provided on the upper end surface of each of the second gears 33. The connection between the two second gears 33 and the first gear 32 is The line segments are all located on the same plane parallel to the upper surface of the base 13, the angle between the two connecting line segments is ninety degrees, the lengths of the two connecting line segments are equal, the four bases 13 are respectively located at four vertices on a virtual rectangle, a transmission rod 16 is respectively arranged on the three sides of the virtual rectangle, the first bevel gears 17 at both ends of the transmission rod 16 are respectively engaged with a second bevel gear 18 on the base 13, the first bevel gear 17 on the active rod 19 is engaged with one of the second bevel gears 18 on the base 13 at a side of the virtual rectangle where the transmission rod 16 is not arranged, and the output shaft of the first drive motor 12 is transmission-connected to the active rod 19. After such arrangement, the first driving motor 12 drives the active rod 19 to rotate, the first bevel gear 17 on the active rod 19 drives the second bevel gear 18 on one of the lifting units to rotate, and the second gear 33 on the lifting unit to rotate, the second gear 33 drives the first gear 32 to rotate, the first gear 32 drives the driving nut 15 on the lifting unit to rotate, and then drives the screw 22 on the lifting unit to achieve the purpose of up and down movement, and the lifting units are transmitted through the transmission rod 16 and the first bevel gear 17 and the second bevel gear 18. The transmission rod 16 and the active rod 19 surround the cavity 8, that is, the projection of the cavity 8 in the plane is located in the virtual rectangle, so that the purpose of transmission can be achieved without affecting the lifting device to lift the storage basket 3 into the cavity 8.

[0043] As a preferred mode, the lifting device includes a suspension rope 21 and four second drive motors 20, the four second drive motors 20 are synchronized, a pulley 24 is coaxially arranged on the output shaft of each second drive motor 20, the diameters of the four pulleys 24 are equal, one end of the suspension rope 21 is fixedly connected to the circumferential surface of each pulley 24, and the ends of the four suspension ropes 21 away from the pulley 24 are fixedly connected to the upper surface of a weight plate 25, and the hook is arranged on the lower surface of the weight plate 25. After such arrangement, the pulley 24 is driven to rotate by the second drive motor 20, so as to achieve the purpose of winding the suspension rope 21 around the pulley 24 or lowering the suspension rope 21 from the pulley 24. The setting of the weight plate 25 has two purposes, one is to prevent the free ends of the suspension ropes 21 from being out of sync, and the other is to facilitate the hook not to swing or to swing very little during the descent process.

[0044] As a preferred embodiment, the hook includes a first hook body 26 and a second hook body 27, and the first hook body 26 and the second hook body 27 are both L-shaped;

[0045] The end of the vertical part on the L-shape of the first hook body 26 away from the transverse part is fixedly connected to the lower surface of the weight plate 25, the vertical part of the L-shape of the first hook body 26 is perpendicular to the lower surface of the weight plate 25, and the lower surface of the end of the L-shape transverse part of the first hook body 26 facing away from the vertical part is provided with a first inclined surface 28, and the distance from the end of the first inclined surface 28 facing the free end of the L-shape transverse part of the first hook body 26 to the upper surface of the L-shape transverse part of the first hook body 26 is smaller than the distance from the end of the first inclined surface 28 facing away from the free end of the L-shape transverse part of the first hook body 26 to the upper surface of the L-shape transverse part of the first hook body 26;

[0046] The end of the vertical part on the L-shaped part of the second hook body 27 away from the transverse part is fixedly connected to the lower surface of the weight plate 25, the vertical part of the L-shaped part of the second hook body 27 is perpendicular to the lower surface of the weight plate 25, and the lower surface of the end of the L-shaped transverse part of the second hook body 27 facing away from the vertical part is provided with a second inclined surface 34, and the distance from the end of the second inclined surface 34 facing the free end of the L-shaped transverse part of the second hook body 27 to the upper surface of the L-shaped transverse part of the second hook body 27 is smaller than the distance from the end of the second inclined surface 34 facing away from the free end of the L-shaped transverse part of the second hook body 27 to the upper surface of the L-shaped transverse part of the second hook body 27.

[0047] A gap is preset between the L-shaped vertical portion of the first hook body 26 and the vertical portion of the second hook body 27. The L-shaped horizontal portion of the first hook body 26 is located on the side of the L-shaped vertical portion of the first hook body 26 facing away from the second hook body 27. The L-shaped horizontal portion of the second hook body 27 is located on the side of the L-shaped vertical portion of the second hook body 27 facing away from the first hook body 26. Both the L-shaped vertical portion of the first hook body 26 and the L-shaped vertical portion of the second hook body 27 are elastic.

[0048] A horizontal plate 29 parallel to the bottom wall of the storage basket 3 is provided on the side wall of the storage basket 3 near the opening, and a hanging opening 30 is provided on the horizontal plate 29. The length of the hanging opening 30 is greater than the distance between the end of the first inclined surface 28 facing the second hook body 27 and the end of the second inclined surface 34 facing the first hook body 26, and the length of the hanging opening 30 is less than the distance between the end of the first inclined surface 28 facing away from the second hook body 27 and the end of the second inclined surface 34 facing away from the first hook body 26.

[0049] When the hook 26 is lowered, the edge of the hanging opening 30 squeezes the second inclined surface 24 and the first inclined surface 28, so that the lower end of the first hook body 26 and the lower end of the second hook body 27 are close to each other, and then the L-shaped transverse portion on the first hook body 26 and the L-shaped transverse portion on the second hook body 27 are penetrated to the bottom of the hanging opening 30. After that, the second inclined surface 24 and the first inclined surface 28 are separated from the squeezing of the edge of the hanging opening 30, so that the lower end of the first hook body 26 and the lower end of the second hook body 27 are restored to the original distance under the action of elasticity, so that during the rising process of the sling 21, the L-shaped transverse portion on the first hook body 26 and the L-shaped transverse portion on the second hook body 27 hook the transverse plate 29, thereby hanging the entire storage basket 3.

[0050] As a preferred mode, the X-direction cross beam 6 is provided with a wheel groove 31 matched with the X-direction moving wheel 4, the length line of the wheel groove 31 on the X-direction cross beam 6 is parallel to the length line of the X-direction cross beam 6, the Y-direction longitudinal beam 7 is provided with a wheel groove 31 matched with the Y-direction moving wheel 5, the wheel groove 31 on the Y-direction longitudinal beam 7 is parallel to the length line of the Y-direction longitudinal beam 7, and the wheel groove 31 on the X-direction cross beam 6 at the intersection of the X-direction cross beam 6 and the Y-direction longitudinal beam 7 is connected with the wheel groove 31 on the Y-direction longitudinal beam 7. In this way, the arrangement of the wheel groove 31 prevents the Y-direction moving wheel 5 from being separated from the Y-direction longitudinal beam 7 when moving and the X-direction moving wheel 4 from being separated from the X-direction cross beam 6 when moving.

Claims

1. A trolley top travel internal lifting storage system, characterized in that: The invention comprises a trolley (1), a lifting frame (2), and a storage basket (3); the trolley (1) is provided with an X-direction moving wheel (4) and a Y-direction moving wheel (5); the trolley (1) is provided with a switch; the execution end of the switch controls the connection between the X-direction moving wheel (4) and the Y-direction moving wheel (5); the top of the lifting frame (2) is provided with a plurality of X-direction cross beams (6) for the X-direction moving wheel (4) to roll; the top of the lifting frame (2) is provided with a plurality of Y-direction longitudinal beams (7) for the Y-direction moving wheel (5) to roll; any two of the X-direction cross beams (6) are parallel to each other; any two of the Y-direction longitudinal beams (7) are parallel to each other; any one of the X-direction cross beams (6) is parallel to all of the The trolley (1) is provided with a cavity (8) opening downward, and a lifting device is provided on the trolley (1) in the cavity (8). The lifting device is provided with a hook matched with the storage basket (3) through a lifting rope (21). When the lifting device lifts the storage basket (3) into the cavity (8), the storage basket (3) can be completely located in the cavity (8). The projection of a quadrilateral formed between any two adjacent X-direction cross beams (6) and any two adjacent Y-direction longitudinal beams (7) on a horizontal plane can surround the projection of the storage basket (3) on the horizontal plane.

2. A trolley top travel internal lifting storage system according to claim 1, characterized in that: The switch comprises a lifting device and a moving frame. The moving frame is fixedly arranged on the trolley (1) by the lifting device. The moving frame is provided with a Y-direction moving wheel (5). When the moving frame descends under the action of the lifting device, the lowermost end of the Y-direction moving wheel (5) is lower than the lowermost end of the X-direction moving wheel (4). When the moving frame ascends under the action of the lifting device, the lowermost end of the X-direction moving wheel (4) is lower than the lowermost end of the Y-direction moving wheel (5). The moving frame is provided with a channel (11) matching the cavity (8).

3. A trolley top travel internal lifting storage system according to claim 2, characterized in that: The X-direction moving wheels (4) are arranged on the front side wall and the rear side wall of the trolley (1); the moving frame comprises a bottom plate (9) and an ear plate (10); the ear plates (10) are arranged at both left and right ends of the bottom plate (9); the channel (11) is arranged on the bottom plate (9); the Y-direction moving wheels (5) are arranged on the two ear plates (10); the wheel axle of the Y-direction moving wheel (5) is perpendicular to the wheel axle of the X-direction moving wheel (4).

4. A trolley top travel internal lifting storage system according to claim 3, characterized in that: The lifting device comprises four lifting units, and the four lifting units are evenly distributed around the channel (11).

5. A trolley top travel internal lifting storage system according to claim 4, characterized in that: The lifting device further comprises a first drive motor (12) and a synchronous transmission, and the output end of the first drive motor (12) is connected to the four lifting units through the synchronous transmission control.

6. A trolley top travel internal lifting storage system according to claim 5, characterized in that: The lifting unit comprises a base (13), a screw rod (22), a top column (14), and a driving nut (15); the top column (14) is fixedly connected to the lower surface of the bottom plate (9); the base (13) is provided with a mounting cavity opening upward; the driving nut (15) is coaxially rotatably arranged on the top of the mounting cavity on the base (13); the top end of the screw rod (22) is rotatably connected to the top column (14); the driving nut (15) is threadedly connected to both ends of the screw rod (22); and the driving nut (15) is drivingly connected to the transmission output end of the synchronous transmission.

7. A trolley top travel internal lifting storage system according to claim 6, characterized in that: The synchronous transmission comprises three transmission rods (16), a first bevel gear (17), a second bevel gear (18), and an active rod (19). The first bevel gear (17) is provided at both ends of each transmission rod (16), and the first bevel gear (17) is also provided at one end of the active rod (19). A first gear (32) is coaxially fixedly sleeved on each driving nut (15). Two second gears (33) meshing with the first gear (32) are provided on the base (13) around the driving nut (15). A second bevel gear (18) is coaxially fixedly provided on the upper end surface of each second gear (33). The connecting lines between the two second gears (33) and the first gear (32) are The segments are all located on the same plane parallel to the upper surface of the base (13), the angle between the two connecting line segments is ninety degrees, the lengths of the two connecting line segments are equal, the four bases (13) are respectively located at four vertices on a virtual rectangle, a transmission rod (16) is respectively arranged on the three sides of the virtual rectangle, the first bevel gears (17) at both ends of the transmission rod (16) are respectively meshed with a second bevel gear (18) on the base (13), the first bevel gear (17) on the active rod (19) is meshed with one of the second bevel gears (18) on the base (13) at a side of the virtual rectangle where the transmission rod (16) is not arranged, and the output shaft of the first drive motor (12) is transmission-connected to the active rod (19).

8. The top-traveling internal lifting storage system of a trolley according to claim 1, characterized in that: The lifting device comprises a lifting rope (21) and four second driving motors (20). The four second driving motors (20) are synchronized. A pulley (24) is coaxially arranged on the output shaft of each second driving motor (20). The diameters of the four pulleys (24) are equal. One end of the lifting rope (21) is fixedly connected to the circumferential surface of each pulley (24). The ends of the four lifting ropes (21) away from the pulleys (24) are fixedly connected to the upper surface of a heavy plate (25). The hook is arranged on the lower surface of the heavy plate (25).

9. The top-traveling internal lifting storage system of a trolley according to claim 1, characterized in that: The hook comprises a first hook body (26) and a second hook body (27), and the first hook body (26) and the second hook body (27) are both L-shaped; The end of the vertical part on the L-shape of the first hook body (26) away from the transverse part is fixedly connected to the lower surface of the weight plate (25), the vertical part of the L-shape of the first hook body (26) is perpendicular to the lower surface of the weight plate (25), and the lower surface of the end of the L-shape transverse part of the first hook body (26) facing away from the vertical part is provided with a first inclined surface (28), and the distance from the end of the first inclined surface (28) facing the free end of the L-shape transverse part of the first hook body (26) to the upper surface of the L-shape transverse part of the first hook body (26) is smaller than the distance from the end of the first inclined surface (28) facing away from the free end of the L-shape transverse part of the first hook body (26) to the upper surface of the L-shape transverse part of the first hook body (26); The end of the vertical part on the L-shape of the second hook body (27) away from the transverse part is fixedly connected to the lower surface of the weight plate (25), the vertical part of the L-shape of the second hook body (27) is perpendicular to the lower surface of the weight plate (25), and the lower surface of the end of the L-shape transverse part of the second hook body (27) facing away from the vertical part is provided with a second inclined surface (34), and the distance from the end of the second inclined surface (34) facing the free end of the L-shape transverse part of the second hook body (27) to the upper surface of the L-shape transverse part of the second hook body (27) is smaller than the distance from the end of the second inclined surface (34) facing away from the free end of the L-shape transverse part of the second hook body (27) to the upper surface of the L-shape transverse part of the second hook body (27); A gap is preset between the L-shaped vertical portion of the first hook body (26) and the vertical portion of the second hook body (27); the L-shaped horizontal portion of the first hook body (26) is located on a side of the L-shaped vertical portion of the first hook body (26) facing away from the second hook body (27); the L-shaped horizontal portion of the second hook body (27) is located on a side of the L-shaped vertical portion of the second hook body (27) facing away from the first hook body (26); and both the L-shaped vertical portion of the first hook body (26) and the L-shaped vertical portion of the second hook body (27) are elastic; A transverse plate (29) parallel to the bottom wall of the storage basket (3) is arranged on the side wall of the storage basket (3) near the opening, and a hanging opening (30) is arranged on the transverse plate (29). The length of the hanging opening (30) is greater than the distance between one end of the first inclined surface (28) facing the second hook body (27) and one end of the second inclined surface (34) facing the first hook body (26), and the length of the hanging opening (30) is less than the distance between one end of the first inclined surface (28) facing away from the second hook body and one end of the second inclined surface (34) facing away from the first hook body (26).

10. The top-traveling internal lifting storage system of a trolley according to claim 1, characterized in that: The X-direction cross beam (6) is provided with a wheel groove (31) matched with the X-direction moving wheel (4), and the length line of the wheel groove (31) on the X-direction cross beam (6) is parallel to the length line of the X-direction cross beam (6). The Y-direction longitudinal beam (7) is provided with a wheel groove (31) matched with the Y-direction moving wheel (5), and the wheel groove (31) on the Y-direction longitudinal beam (7) is parallel to the length line of the Y-direction longitudinal beam (7). At the intersection of the X-direction cross beam (6) and the Y-direction longitudinal beam (7), the wheel groove (31) on the X-direction cross beam (6) is connected with the wheel groove (31) on the Y-direction longitudinal beam (7).

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