Stair climbing and cart all-in-one machine for catering

Abstract

The utility model provides a stair climbing and cart all-in-one machine for catering, which belongs to the field of catering distribution equipment and comprises a stair climbing machine, a supporting mechanism capable of being stored is mounted in front of a rack of the stair climbing machine and comprises two supporting legs, the upper ends of the two supporting legs are rotatably connected with two sides of the top of the rack respectively, and the upper ends of the two supporting legs are rotatably connected with two sides of the top of the rack respectively. Universal wheels are respectively mounted at the lower ends of the two supporting legs; the supporting legs are further connected with the rack through first connecting rods and second connecting rods, one ends of the first connecting rods are hinged to the supporting legs, the other ends of the first connecting rods are hinged to the second connecting rods, and the second connecting rods are hinged to the side portion of the rack. A bearing mechanism is installed behind the rack and comprises a fixing frame, the fixing frame is fixed to the two sides of the rack through locking pieces, supporting plates and supporting rods are fixed to the upper surface of the fixing frame, the supporting rods are supported below the corresponding supporting plates, and a certain included angle is formed between the plane where the supporting plates are located and the plane where the fixing frame is located. The stair climbing machine solves the problem that when the stair climbing machine advances in an inclined mode, meals in the meal box are prone to scattering.

Description

Technical Field

[0001] This utility model relates to the field of catering delivery equipment, and in particular to an integrated stair-climbing cart machine for food preparation. Background Technology

[0002] With the development of the food delivery industry, stair-climbing machines are being used more and more widely in last-mile food delivery and other scenarios. Especially in older residential areas without elevators, using stair-climbing machines to deliver meals can significantly reduce labor costs and labor intensity.

[0003] In the food delivery industry, existing stair-climbing machines typically use a base support structure at their bottom to place the food containers. When food delivery is needed, the operator first extends the base support of the stair-climbing machine backward to create a horizontal bearing surface, and then places the food container directly on the base support. Because the stair-climbing machine needs to move at an angle along the stairs, the delivery personnel need to tilt the equipment at a certain angle in the direction of travel (usually an angle of 30°-60° with the horizontal plane), and pull the handle to drive the tracked or wheeled structure to move upstairs.

[0004] The inventors discovered that the aforementioned prior art has at least the following drawbacks: because the stair climber needs to maintain an inclined state during operation, while the food container is placed directly on the horizontal support, a large inclined surface is formed between the food container and the horizontal plane during the stair climber's ascent, which easily leads to the food inside the container spilling or overflowing. Utility Model Content

[0005] This application provides a stair-climbing cart integrated machine for meal preparation, which solves the technical problem in the prior art where food in the meal box is prone to spillage or overflow when the stair-climbing machine is tilted.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a stair-climbing cart integrated machine for meal preparation, including a stair-climbing machine, a retractable support mechanism installed at the front of the stair-climbing machine frame, the support mechanism including two support legs, the upper ends of the two support legs being rotatably connected to the two sides of the top of the frame respectively, and the lower ends of the two support legs being respectively equipped with casters; each support leg is also connected to the frame through a first link and a second link, one end of the first link being hinged to the support leg, the other end of the first link being hinged to the second link, and the second link being hinged to the side of the frame; a load-bearing mechanism is installed at the rear of the frame, the load-bearing mechanism including a fixed frame, the two sides of the fixed frame being fixed to the two sides of the frame by locking members, a tray and a support rod being fixed on the upper surface of the fixed frame, the support rod being supported below the corresponding tray, and the angle formed by the plane where the tray is located and the plane where the fixed frame is located is an acute angle.

[0007] Because the front of the frame has a retractable support mechanism, and the rear of the frame is fixed with a load-bearing mechanism with an inclined tray and support rod by locking devices, and the plane of the tray forms a specific angle with the plane of the fixed frame, the tray can keep the food box in a nearly horizontal position when the stair climber is moving at an incline, preventing food from spilling or overflowing. At the same time, the support mechanism can be flexibly retracted or extended to adapt to stair climbing and flat ground walking scenarios, improving the convenience and stability of the meal preparation operation.

[0008] As a further improvement to the above solution, the angle formed between the plane where the pallet is located and the plane where the fixing frame is located is greater than 30° and less than 60°.

[0009] As a further improvement to the above solution, a cross brace is also provided between the two support legs, and the two ends of the cross brace are fixedly connected to the two support legs respectively; the cross brace can keep the two support legs moving synchronously, which facilitates the storage or unfolding of the support mechanism.

[0010] As a further improvement to the above solution, each support leg includes an upper support section, a transverse section, and a lower support section. The upper end of the upper support section is connected to the top of the frame via a pivot pin. The lower end of the upper support section is fixedly connected to the upper surface of one end of the transverse section, and the lower surface of the other end of the transverse section is fixedly connected to the upper end of the lower support section. The lower end of the lower support section is connected to the caster wheel. Thus, when the support mechanism is deployed, the lower end of the lower support section extends outward, making the lower width of the support mechanism greater than the upper width. This increases the support area of ​​the device after deployment, improving the stability of the device when walking on flat ground. Simultaneously, when the support mechanism is in the retracted state, the lower support section rotates downward with the support leg and retracts to the front of the frame, preventing interference between its lower end and the caster wheels at the bottom of the stair climber, ensuring smooth movement of the stair climber during stair climbing.

[0011] As a further improvement to the above solution, a first stop and a second stop are connected between the two first links. When the support mechanism is deployed, the first stop can contact one side of the second link, and when the support mechanism is retracted, the second stop can contact the other side of the second link. Thus, the mechanical limiting method can ensure that the support mechanism remains stable when deployed or retracted, and avoid the normal use of the device due to the loss of control of the rotation angle of the linkage mechanism.

[0012] As a further improvement to the above solution, a storage clamp is fixed on the second connecting rod. The storage clamp includes a main body and a clamp head, with the clamp head located on the outer edge of the main body. Correspondingly, the support leg is provided with a slot. When the support mechanism is in the storage state, the clamp head of the storage clamp can be locked into the slot on the support leg. When the support mechanism is stored in front of the frame, the clamp head of the storage clamp can be locked into the slot on the support leg by elastic force, thereby firmly locking the support mechanism in the storage state and preventing the support mechanism from accidentally unfolding due to shaking during the movement of the stair climber.

[0013] As a further improvement to the above solution, the locking component includes a buckle seat and a hook welded and fixed to the frame. A handle is rotatably mounted on the buckle seat, and a rotating shaft is rotatably mounted on the handle. A movable shaft passes through the interior of the rotating shaft in the radial direction along the shaft, and a buckle ring is connected to one end of the movable shaft. When the handle rotates around the buckle seat, the buckle ring can engage inside the hook. Thus, by means of the structure in which the handle rotates around the buckle seat, the buckle ring and the hook can be quickly engaged or disengaged. The installation or disassembly of the support frame and the stair climber frame can be completed without the aid of tools, improving the convenience of operation.

[0014] As a further improvement to the above solution, the movable shaft is provided with an external thread, and the rotating shaft is provided with an internal thread hole, which is engaged with the external thread on the movable shaft. Thus, the movable shaft can be rotated to adjust its extension length within the rotating shaft according to the actual installation gap between the stair climber frame and the support frame, thereby adjusting the relative position of the buckle in the locking component, ensuring that the buckle and the hook fit tightly, and thus avoiding the problem of loose connection.

[0015] As a further improvement to the above solution, at least two trays are provided, and each tray is supported by a support rod underneath; this allows the load-bearing structure to support multiple meal boxes simultaneously, improving meal preparation efficiency.

[0016] As can be seen from the above technical solutions, this utility model has at least the following technical effects or advantages:

[0017] Because the front of the frame has a retractable support mechanism, and the rear of the frame is fixed with a load-bearing mechanism with an inclined tray and support rod by locking devices, and the plane of the tray forms a specific angle with the plane of the fixed frame, the tray can keep the food box in a nearly horizontal position when the stair climber is moving at an incline, preventing food from spilling or overflowing. At the same time, the support mechanism can be flexibly retracted or extended to adapt to stair climbing and flat ground walking scenarios, improving the convenience and stability of the meal preparation operation. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this support mechanism;

[0021] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the structure after the support mechanism has been stored.

[0023] Figure 5 for Figure 4 A schematic diagram of the structure at point B.

[0024] Explanation of reference numerals in the attached drawings: 1. Stair climber, 2. Frame, 3. Support leg, 4. Caster wheel, 5. First link, 6. Second link, 7. Fixed frame, 8. Locking element, 9. Support plate, 10. Support rod, 11. Horizontal brace, 12. Upper support section, 13. Horizontal section, 14. Lower support section, 15. Turning pin, 16. First stop bar, 17. Second stop bar, 18. Pin shaft, 19. First groove, 20. Second groove, 21. Storage clip, 211. Main body, 212. Clamp, 22. Groove, 23. Buckle seat, 24. Hook, 25. Handle, 26. Rotary shaft, 27. Movable shaft, 28. Buckle ring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this patent.

[0026] This utility model discloses an integrated stair-climbing cart machine for food preparation, such as... Figure 1 As shown, it includes a stair climber 1. A retractable support mechanism is installed in front of the frame 2 of the stair climber 1. The support mechanism includes two support legs 3. The upper ends of the two support legs 3 are rotatably connected to the two sides of the top of the frame 2, and the lower ends of the two support legs 3 are respectively equipped with casters 4. Each support leg 3 is also connected to the frame 2 through a first link 5 and a second link 6. One end of the first link 5 is hinged to the support leg 3, and the other end of the first link 5 is hinged to the second link 6. The second link 6 is hinged to the side of the frame 2. A load-bearing mechanism is installed at the rear of the frame 2. The load-bearing mechanism includes a fixed frame 7. The two sides of the fixed frame 7 are fixed to the two sides of the frame 2 through locking parts 8. A support plate 9 and a support rod 10 are fixed on the upper surface of the fixed frame 7. The support rod 10 is supported below the corresponding support plate 9. The angle formed by the plane where the support plate 9 is located and the plane where the fixed frame 7 is located is an acute angle.

[0027] In this embodiment, the two support legs 3 of the support mechanism are symmetrically distributed on both sides of the frame 2, and their rotational connection axis is set in the horizontal direction, so that the support legs 3 can rotate around the top of the frame 2 in a vertical plane. The casters 4 are used to provide support and mobility when walking on flat ground. The first link 5 and the second link 6 form a linkage mechanism, and the support mechanism can be retracted or deployed by rotating the hinge point. The fixed frame 7 of the bearing mechanism has a rectangular frame structure. The tray 9 is fixed to the upper surface of the fixed frame 7 by welding. The support rod 10 has a rod-shaped structure, one end of which is welded to the fixed frame 7, and the other end is supported on the bottom of the corresponding tray 9 to enhance the load-bearing strength of the tray 9. The angle formed between the plane of the tray 9 and the plane of the fixed frame 7 is greater than 30° and less than 60°.

[0028] In actual operation, when stair climbing is required, the operator rotates the support mechanism upwards and retracts it to the front of the frame 2. At this time, the stair climber 1 moves along the stairs at an angle, typically 30° to 60°. Because the plane of the pallet 9 forms a specific angle with the plane of the fixed frame 7, the pallet 9 remains nearly horizontal when the stair climber 1 is tilted, thus keeping the food containers placed on the pallet 9 stable and preventing food from spilling or overflowing due to the tilt of the stair climber. When walking on flat ground, the operator rotates the support mechanism downwards and unfolds it, allowing the casters 4 to contact the ground. At this time, the pallet 9 still maintains a nearly horizontal posture, which facilitates the operator's meal preparation work, such as delivering or retrieving food containers.

[0029] like Figure 2 As shown, in the specific structure of the support mechanism, a cross brace 11 is provided between the two support legs 3, and the two ends of the cross brace 11 are fixedly connected to the two support legs 3 respectively. The cross brace 11 is a rod-shaped structure, and its two ends are fixed to the support legs 3 by welding or bolting. By setting the cross brace 11, the two support legs 3 can maintain synchronous movement during the retraction or unfolding process, avoiding the situation where the movement of the two support legs 3 is inconsistent, thereby improving the convenience and stability of the support mechanism operation.

[0030] Each support leg 3 includes an upper support section 12, a transverse section 13, and a lower support section 14. The upper end of the upper support section 12 is connected to the top of the frame 2 via a pivot pin 15. The lower end of the upper support section 12 is fixedly connected to the upper surface of one end of the transverse section 13. The lower surface of the other end of the transverse section 13 is fixedly connected to the upper end of the lower support section 14. The lower end of the lower support section 14 is connected to a caster wheel 4. The upper support section 12, transverse section 13, and lower support section 14 are connected sequentially. The upper support section 12 is arranged vertically, the transverse section 13 is arranged horizontally, and the lower support section 14 is arranged vertically. The bottom end of the lower support section 14 extends outward, so that when the support mechanism is unfolded, the lower width is greater than the upper width, which helps to increase the support area of ​​the support mechanism and improve the stability of the device when walking on flat ground. Meanwhile, when the support mechanism is in the retracted state, the lower support section 14 can retract towards the frame 2 to avoid interference with the moving wheels at the bottom of the stair climber 1, ensuring smooth movement of the stair climber 1 during the stair climbing process.

[0031] like Figure 3 As shown, a first stop 16 and a second stop 17 connect the two first links 5. When the support mechanism is deployed, the first stop 16 can contact one side of the second link 6; when the support mechanism is retracted, the second stop 17 can contact the other side of the second link 6. Specifically, the first links 5 and the second links 6 are hinged by a pin 18. The first stop 16 and the second stop 17 are respectively fixed between the two first links 5 and located on both sides of the pin 18. When the support mechanism is deployed to the set position, the first stop 16 abuts against one side of the second link 6, restricting further rotation between the first link 5 and the second link 6, thereby fixing the deployed state of the support mechanism; when the support mechanism is retracted to the set position, the second stop 17 abuts against the other side of the second link 6, restricting further rotation between the first link 5 and the second link 6, thereby fixing the retracted state of the support mechanism. The limiting action of the first stop 16 and the second stop 17 ensures that the support mechanism remains stable when unfolded or retracted, preventing the normal use of the device from being affected by excessive rotation of the linkage mechanism.

[0032] like Figure 4As shown, a storage clip 21 is fixed on the second connecting rod 6. The storage clip 21 includes a main body 211 and a clamp 212, with the clamp 212 located on the outer edge of the main body 211. Correspondingly, the support leg 3 has a slot 22. When the support mechanism is in the retracted state, the clamp 212 of the storage clip 21 can be engaged in the slot 22 on the support leg 3. When the support mechanism is retracted to the front of the frame 2, the operator aligns the clamp 212 of the storage clip 21 with the slot 22 on the support leg 3, and uses elastic force to engage the clamp 212 in the slot 22, thereby fixing the support mechanism in the retracted state and preventing the support mechanism from accidentally unfolding due to shaking during the climbing process. When it is necessary to unfold the support mechanism, the operator only needs to apply external force to the handle of the storage clip 21, causing the clamp 212 to disengage from the slot 22, and the support mechanism can be unfolded. The operation is simple and quick.

[0033] like Figure 5 As shown, in the specific structure of the locking component 8, the locking component 8 includes a buckle 23 and a hook 24 welded and fixed to the frame 2. A handle 25 is rotatably mounted on the buckle 23, and a rotating shaft 26 is rotatably mounted on the handle 25. A movable shaft 27 passes through the interior of the rotating shaft 26 in the radial direction along the rotating shaft 26. One end of the movable shaft 27 is connected to a buckle ring 28. When the handle 25 rotates around the buckle 23, the buckle ring 28 can be engaged inside the hook 24.

[0034] The fastener 23 is fixed to the side of the fixed frame 7, the hook 24 is fixed to the side of the frame 2, the handle 25 can rotate around the fastener 23, the rotating shaft 26 is set in the horizontal direction, and the movable shaft 27 can move in the radial direction along the rotating shaft 26. When it is necessary to install the load-bearing mechanism, bring the fixed frame 7 close to the frame 2, align the fastener 23 with the hook 24, then rotate the handle 25 to align the retaining ring 28 with the hook 24, and continue to rotate the handle 25 to make the retaining ring 28 engage with the hook 24, thereby fixing the fixed frame 7 to the frame 2. When it is necessary to disassemble the load-bearing mechanism, rotate the handle 25 in the opposite direction to disengage the retaining ring 28 from the hook 24, and the fixed frame 7 can be removed from the frame 2. The structure of this locking component 8 allows for installation or disassembly without the need for tools, improving the convenience of operation.

[0035] The movable shaft 27 has external threads, and the rotating shaft 26 has an internal threaded hole, which mates with the external threads on the movable shaft 27. By rotating the movable shaft 27, its extension length within the rotating shaft 26 can be adjusted, thereby adjusting the relative position of the retaining ring 28 within the locking member 8. When the installation gap between the frame 2 and the fixed frame 7 changes, the operator can rotate the movable shaft 27 according to the actual situation to ensure that the retaining ring 28 is tightly engaged within the hook 24, preventing loosening due to excessive installation gap and ensuring a firm and reliable connection between the load-bearing mechanism and the frame 2.

[0036] At least two trays 9 are provided, and each tray 9 is supported by a support rod 10 underneath. In this embodiment, the trays 9 are rectangular plates, and multiple trays 9 are arranged side by side along the length of the fixed frame 7. Each tray 9 is supported by a corresponding support rod 10 underneath, and the number of support rods 10 can be determined according to the size of the tray 9 and the load-bearing requirements. By setting multiple trays 9, the carrying mechanism can carry multiple meal boxes simultaneously, improving meal preparation efficiency and meeting the needs of different delivery scenarios.

[0037] When using this device, the support mechanism can be retracted during the ascent of stairs, allowing the stair climber 1 to move at an angle. Because the plane of the pallet 9 and the plane of the fixed frame 7 form a certain angle, the food container placed on the pallet 9 remains nearly horizontal as the stair climber 1 ascends the stairs, preventing food from spilling or overflowing due to the tilt of the stair climber 1. When the device travels on flat ground, the support mechanism can be extended, allowing the casters 4 to contact the ground, maintaining the pallet 9 at a near-horizontal position for easy meal preparation.

[0038] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in its embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A stair-climbing trolley integrated machine for food preparation, comprising a stair-climbing machine (1), characterized in that, The stair climber (1) has a foldable support mechanism installed in front of its frame (2). The support mechanism includes two support legs (3). The upper ends of the two support legs (3) are rotatably connected to the two sides of the top of the frame (2). The lower ends of the two support legs (3) are respectively equipped with casters (4). Each support leg (3) is also connected to the frame (2) through a first link (5) and a second link (6). One end of the first link (5) is hinged to the support leg (3), and the other end of the first link (5) is hinged to the second link (6). The second link (6) is hinged to the side of the frame (2). A bearing mechanism is installed at the rear of the frame (2). The bearing mechanism includes a fixed frame (7). The two sides of the fixed frame (7) are fixed to the two sides of the frame (2) by locking parts (8). A tray (9) and a support rod (10) are fixed on the upper surface of the fixed frame (7). The support rod (10) is supported below the corresponding tray (9). The angle formed between the plane where the tray (9) is located and the plane where the fixed frame (7) is located is an acute angle.

2. The stair-climbing trolley integrated machine for meal preparation according to claim 1, characterized in that, The angle between the plane of the pallet (9) and the plane of the fixed frame (7) is greater than 30° and less than 60°.

3. The stair-climbing trolley integrated machine for meal preparation according to claim 1, characterized in that, A cross brace (11) is also provided between the two support legs (3), and the two ends of the cross brace (11) are fixedly connected to the two support legs (3) respectively.

4. The stair-climbing trolley integrated machine for meal preparation according to claim 1, characterized in that, Each support leg (3) includes an upper support section (12), a transverse section (13) and a lower support section (14). The upper end of the upper support section (12) is connected to the top of the frame (2) by a pivot pin (15). The lower end of the upper support section (12) is fixedly connected to the upper surface of one end of the transverse section (13). The lower surface of the other end of the transverse section (13) is fixedly connected to the upper end of the lower support section (14). The lower end of the lower support section (14) is connected to the caster wheel (4).

5. The stair-climbing trolley integrated machine for meal preparation according to claim 1, characterized in that, A first stop (16) and a second stop (17) are connected between the two first links (5). When the support mechanism is deployed, the first stop (16) can contact one side of the second link (6). When the support mechanism is retracted, the second stop (17) can contact the other side of the second link (6).

6. The stair-climbing trolley integrated machine for meal preparation according to claim 1, characterized in that, The second link (6) is fixed with a storage clip (21). The storage clip (21) includes a main body (211) and a clamp (212). The clamp (212) is located on the outer side of the edge of the main body (211). Correspondingly, the support leg (3) is provided with a slot (22). When the support mechanism is in the storage state, the clamp (212) of the storage clip (21) can be locked in the slot (22) on the support leg (3).

7. A stair-climbing trolley integrated machine for meal preparation according to any one of claims 1 to 6, characterized in that, The locking component (8) includes a buckle seat (23) and a hook (24) welded and fixed to the frame (2). A handle (25) is rotatably mounted on the buckle seat (23), and a rotating shaft (26) is rotatably mounted on the handle (25). A movable shaft (27) passes through the interior of the rotating shaft (26) in the radial direction along the rotating shaft (26). One end of the movable shaft (27) is connected to a buckle ring (28). When the handle (25) rotates around the buckle seat (23), the buckle ring (28) can engage inside the hook (24).

8. A stair-climbing trolley integrated machine for meal preparation according to claim 7, characterized in that, The movable shaft (27) has an external thread, and the rotating shaft (26) has an internal thread hole, which is engaged with the external thread on the movable shaft (27).

9. A stair-climbing trolley integrated machine for meal preparation according to claim 8, characterized in that, At least two trays (9) are provided, and each tray (9) is supported by a support rod (10) below it.

Images