Integrated load-bearing ring handle for medical trolley

Abstract

The utility model discloses an integrated load -bearing annular handle for medical trolley, including trolley body, the both sides rotation of trolley body are connected with the pivot, and the pivot is connected with handle body, and the bottom of trolley body is equipped with two universal wheels and two directional wheels, and the bottom of handle body is connected with reset walking aid mechanism, reset walking aid mechanism includes first connecting rod, second connecting rod, lever and lifting plate, and the both ends of first connecting rod are connected with handle body and lever respectively, and one end of second connecting rod is connected with lever, and second connecting rod is connected with sliding block, and sliding block is connected with connecting frame, and connecting frame is connected with lifting plate, and the bottom of lifting plate is installed with support wheel, the utility model discloses handle body can push trolley body still can lift up trolley bottom in addition, and the convenient crossing barrier.

Description

Technical Field

[0001] This utility model belongs to the field of medical cart technology, and in particular relates to an integrated load-bearing ring handle for a medical cart. Background Technology

[0002] Medical trolleys are protective medical transport devices used in wards, primarily for transporting surgical instruments, medications, and patients. They are suitable for hospitals, clinics, pharmacies, and other medical institutions. Based on material, they can be categorized into ABS, stainless steel, and powder-coated types, and their functions cover dozens of scenarios including emergency care, treatment, medication delivery, and waste disposal.

[0003] Existing medical trolleys typically feature a ring-shaped handle for easy movement. The core function of this handle is rotational control of direction and linear application of thrust, allowing only forward, backward, and turning operations. When the trolley needs to cross thresholds (such as ward doors or operating room entrances) or avoid high obstacles (such as fire hydrants or equipment bases), the traditional handle cannot provide additional vertical lifting force. Medical staff must then assist in the following ways: manual lifting: directly lifting the bottom of the trolley by hand or using other tools (such as crowbars) to prop it up; this is labor-intensive and inefficient (especially when the trolley is loaded with heavy items); adjusting the center of gravity: manually shifting the center of gravity of the items inside the trolley to allow it to tilt naturally and cross thresholds, but this carries the risk of items slipping (e.g., liquid reagents, precision instruments); and detouring: changing the trolley's route to avoid thresholds or obstacles, leading to longer transport times (e.g., multiple detours along long corridors). None of these methods meet the needs for efficient, safe, and stable medical transport, especially in emergency scenarios (such as emergency transport), potentially delaying treatment. Utility Model Content

[0004] The purpose of this invention is to provide an integrated load-bearing ring handle for a medical trolley, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an integrated load-bearing ring handle for a medical trolley, comprising a trolley body, with rotating shafts rotatably connected to both sides of the trolley body. One end of each rotating shaft is fixedly connected to a handle body. The bottom surface of the trolley body is provided with two omnidirectional wheels and two directional wheels. A resettable walking assistance mechanism is connected to the bottom surface of the handle body. The resettable walking assistance mechanism includes a first connecting rod, a second connecting rod, a lever, and a lifting plate. The two ends of the first connecting rod are respectively connected to the handle body and the lever. One end of the second connecting rod is connected to the lever and a slider. A connecting frame is fixedly connected to one side of the slider. A lifting plate is fixedly connected to one end of the connecting frame. Several support wheels are installed on the bottom surface of the lifting plate. Moving the support wheels downwards can lift the directional wheels and omnidirectional wheels, allowing the trolley to cross obstacles.

[0007] Preferably, a limiting wheel is fixedly connected to the circumferential side of the rotating shaft, and the circumferential side of the limiting wheel is provided with several slots. Connecting plates are fixedly connected to both sides of the trolley body, and a threaded sleeve is fixedly connected to the upper surface of the connecting plate. A lead screw is installed inside the threaded sleeve, and a locking block is connected to the bottom end of the lead screw. A torsion spring is provided on the circumferential side of the rotating shaft. One end of the torsion spring is fixedly connected to the trolley body, and the other end of the torsion spring is fixedly connected to the handle body. The lead screw pushes the locking block downward to insert it into the slot, thereby limiting the rotation of the rotating shaft and preventing it from rotating.

[0008] Preferably, the lever is rotatably connected to the trolley body, and both the handle body and the lever are hinged to the first link.

[0009] Preferably, both the lever and the slider are hinged to the second link.

[0010] Preferably, one end of the first connecting rod is connected to the long arm of the lever, and one end of the second connecting rod is connected to the short arm of the lever.

[0011] Preferably, guide rails are fixedly connected to both sides of the trolley body, the slider is installed in the guide rail and slides with the guide rail, a limit groove is opened on one side of the guide rail, and the connecting frame slides with the limit groove.

[0012] Preferably, the lead screw is threadedly engaged with the screw sleeve, the lead screw is rotatably connected to the locking block, and the shape and size of the locking block are the same as those of the locking groove.

[0013] This utility model has the following beneficial effects:

[0014] The handle body of this utility model can not only push the trolley body but also lift the bottom of the trolley to facilitate crossing obstacles. Specifically, it is designed with a handle body, a lever, a first link, a second link, and a support wheel. When an obstacle is encountered, the handle body is rotated downwards. The handle body pulls the long arm of the lever upwards through the first link, and the short arm of the lever rotates downwards. The second link pushes the slider downwards, and the slider further moves downwards through the connecting frame, causing the lifting plate to push the support wheel downwards. In turn, the support wheel lifts the entire trolley body upwards, making it easier to cross obstacles.

[0015] Under normal conditions, the handle body of this invention will not rotate and can still bear weight. Specifically, it is achieved by setting a lead screw, a locking block, and a limiting wheel. When the handle body is in a horizontal state, the position of the locking block corresponds to the position of the locking groove directly above the limiting wheel. Rotating the lead screw clockwise pushes the locking block downwards, causing it to insert into the locking groove, preventing the limiting wheel from rotating. This keeps the handle body in a horizontal state and allows it to bear weight.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear three-dimensional structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the auxiliary lifting mechanism of this utility model;

[0021] Figure 4 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0022] The components represented by each number in the attached diagram are listed below: 1. Cart body; 2. Handle body; 3. Lever; 4. First link; 5. Second link; 6. Guide rail; 7. Slider; 8. Limiting groove; 9. Connecting frame; 10. Lifting plate; 11. Support wheel; 12. Directional wheel; 13. Universal wheel; 14. Shaft; 15. Torsion spring; 16. Limiting wheel; 17. Connecting plate; 18. Screw sleeve; 19. Lead screw; 20. Locking block; 21. Locking groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figures 1-4 As shown, this utility model is an integrated load-bearing ring handle for a medical trolley, including a trolley body 1. The trolley body 1 has several pull-out drawers inside, which are used to store medical drugs and instruments. The two sides of the trolley body 1 are rotatably connected to a pivot 14, and one end of the pivot 14 is fixedly connected to a handle body 2. The bottom surface of the trolley body 1 is provided with two universal wheels 13 and two directional wheels 12. The pivot 14 facilitates the rotation of the handle body 2, and the directional wheels 12 cooperate with the universal wheels 13 to facilitate the movement of the trolley body 1 in different directions.

[0026] The bottom surface of the handle body 2 is connected to a resettable walking aid mechanism; the resettable walking aid mechanism includes a first link 4, a second link 5, a lever 3 and a lifting plate 10. The lever 3 is rotatably connected to the trolley body 1. The lever 3 can save effort. The user does not need to exert too much force to turn the handle body 2 downward so that the support wheel 11 can lift the trolley body 1 upward. The two ends of the first link 4 are respectively hinged to the handle body 2 and the lever 3. One end of the first link 4 is hinged to the long arm end of the lever 3. One end of the second link 5 is hinged to the short arm end of the lever 3. One end of the second link 5 is connected to a slider 7. Both the lever 3 and the slider 7 are hinged to the second link 5.

[0027] A connecting frame 9 is fixedly connected to one side of the slider 7, and guide rails 6 are fixedly connected to both sides of the trolley body 1. The slider 7 is installed in the guide rail 6, and the slider 7 slides with the guide rail 6. The guide rail 6 limits and guides the slider 7, so that the slider 7 can only move in the vertical direction. A limit groove 8 is opened on one side of the guide rail 6. The connecting frame 9 slides with the limit groove 8. The limit groove 8 facilitates the sliding of the connecting frame 9, and at the same time, the connecting frame 9 can limit the slider 7 to prevent the slider 7 from falling out of the guide rail 6. A lifting plate 10 is fixedly connected to one end of the connecting frame 9. Several support wheels 11 are installed on the bottom surface of the lifting plate 10. When the support wheels 11 move downward, they can lift the directional wheels 12 and the universal wheels 13. After the support wheels 11 lift the trolley body 1 upward, the support wheels 11 contact the ground and can move further, making it convenient for the trolley body 1 to cross obstacles.

[0028] A limiting wheel 16 is fixedly connected to the circumferential side of the rotating shaft 14. The circumferential side of the limiting wheel 16 is provided with several slots 21. Connecting plates 17 are fixedly connected to both sides of the trolley body 1. A threaded sleeve 18 is fixedly connected to the upper surface of the connecting plate 17. A lead screw 19 is installed inside the threaded sleeve 18, and the lead screw 19 is threadedly engaged with the threaded sleeve 18. A locking block 20 is connected to the bottom end of the lead screw 19, and the lead screw 19 and the locking block 20 are rotatably connected. The shape and size of the locking block 20 are the same as the slots 21. The circumferential side of the rotating shaft 14... A torsion spring 15 is provided, which is used to reset the rotating shaft 14. After the equipment crosses the obstacle, the handle body 2 is released and the torsion spring 15 is reset. It can drive the handle body 2 to return to a horizontal state through the limit wheel 16. One end of the torsion spring 15 is fixedly connected to the trolley body 1, and the other end of the torsion spring 15 is fixedly connected to the handle body 2. The lead screw 19 pushes the locking block 20 downward to insert into the locking slot 21 to limit the rotating shaft 14 and prevent the rotating shaft 14 from rotating, so as to facilitate pushing in the normal state.

[0029] Working principle:

[0030] In the normal state, when the user does not encounter any obstacles, the handle body 2 is horizontal. At this time, the slot 21 directly above the limit wheel 16 is positioned correctly. Turning the screw 19 clockwise pushes the locking block 20 downwards, causing it to insert into the slot 21 above the limit wheel 16. The limit wheel 16 can no longer rotate, thus preventing the handle body 2 from rotating as well. The handle body 2 then functions as a weight-bearing device. When an obstacle is encountered, turning the screw 19 counterclockwise pulls the locking block 20 out of the slot 21, freeing the limit wheel 16 from its position. Turning the handle body 2 downwards... The first link 4 causes the long arm of lever 3 to tilt upwards, and the short arm of lever 3 to rotate downwards. The short arm of lever 3 drives the slider 7 to move downwards via the second link 5. The slider 7 further pushes the lifting plate 10 downwards via the connecting frame 9, so that the support wheel 11 contacts the ground. Continue to rotate the handle body 2, and the support wheel 11 continues to move downwards, lifting the trolley body 1 upwards. After the directional wheel 12 and the universal wheel 13 cross the obstacle, release the handle body 2, the torsion spring 15 returns to its original position, and drives the handle body 2 to return to its original position via the rotating shaft 14, so that the handle body 2 is in a horizontal state. Then, insert the locking block 20 into the locking slot 21.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated load-bearing ring handle for a medical trolley, comprising a trolley body (1), with rotating shafts (14) rotatably connected to both sides of the trolley body (1), and a handle body (2) fixedly connected to one end of the rotating shafts (14), wherein the bottom surface of the trolley body (1) is provided with two universal wheels (13) and two directional wheels (12), characterized in that: The bottom surface of the handle body (2) is connected to a resettable walking aid mechanism; The resetting walking aid mechanism includes a first link (4), a second link (5), a lever (3), and a lifting plate (10). The two ends of the first link (4) are connected to the handle body (2) and the lever (3) respectively. One end of the second link (5) is connected to the lever (3). One end of the second link (5) is connected to a slider (7). A connecting frame (9) is fixedly connected to one side of the slider (7). One end of the connecting frame (9) is fixedly connected to the lifting plate (10). Several support wheels (11) are installed on the bottom surface of the lifting plate (10). The support wheels (11) move downwards, which can lift the directional wheel (12) and the universal wheel (13) to cross obstacles.

2. The integrated load-bearing ring handle for a medical trolley according to claim 1, characterized in that, The circumferential side of the rotating shaft (14) is fixedly connected to a limiting wheel (16), and the circumferential side of the limiting wheel (16) is provided with several slots (21). Both sides of the trolley body (1) are fixedly connected to a connecting plate (17), and the upper surface of the connecting plate (17) is fixedly connected to a threaded sleeve (18). A screw rod (19) is installed inside the threaded sleeve (18), and a locking block (20) is connected to the bottom end of the screw rod (19). A torsion spring (15) is provided on the circumferential side of the rotating shaft (14). One end of the torsion spring (15) is fixedly connected to the trolley body (1), and the other end of the torsion spring (15) is fixedly connected to the handle body (2). The screw rod (19) pushes the locking block (20) downward to insert it into the slot (21) to limit the rotation of the rotating shaft (14) and prevent the rotating shaft (14) from rotating.

3. The integrated load-bearing ring handle for a medical trolley according to claim 1, characterized in that, The lever (3) is rotatably connected to the trolley body (1). Both the handle body (2) and the lever (3) are hinged to the first link (4).

4. The integrated load-bearing ring handle for a medical trolley according to claim 1, characterized in that, Both the lever (3) and the slider (7) are hinged to the second link (5).

5. The integrated load-bearing ring handle for a medical trolley according to claim 1, characterized in that, One end of the first link (4) is connected to the long arm end of the lever (3), and one end of the second link (5) is connected to the short arm end of the lever (3).

6. The integrated load-bearing ring handle for a medical trolley according to claim 1, characterized in that, The trolley body (1) is fixedly connected to guide rails (6) on both sides. The slider (7) is installed in the guide rail (6) and slides with the guide rail (6). A limiting groove (8) is opened on one side of the guide rail (6) and the connecting frame (9) slides with the limiting groove (8).

7. The integrated load-bearing ring handle for a medical trolley according to claim 2, characterized in that, The lead screw (19) is threadedly engaged with the screw sleeve (18), and the lead screw (19) is rotatably connected to the locking block (20). The shape and size of the locking block (20) are the same as those of the locking groove (21).

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