Cart for medical care
By setting a pushing unit and a protective unit on the trolley chassis, and using the cooperation of sliders and protective bars, the problem of trolley tipping over is solved, and stability and balance on uneven roads are achieved.
Patent Information
- Application Number
- CN202520212653.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Medical carts are prone to tipping over when in use because the bottom wheels are blocked or stuck, causing instability and damage to medical products.
A pushing unit and a protective unit are installed on the chassis of the trolley. The pushing unit includes a movable groove and a slider, and the protective unit includes a guide groove and a limiting groove. Through the cooperation of the slider and the protective rod, gravity and friction are used to prevent the trolley from tipping over.
It effectively prevents the stroller from tipping over on uneven surfaces, improves the stroller's balance and stability, and is suitable for use in various locations.
Smart Images
Figure CN223774002U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical trolley technology, specifically a medical care trolley. Background Technology
[0002] Medical trolleys are protective transport equipment for wards. They are suitable for use in large hospitals, clinics, pharmacies, psychiatric hospitals, and other daily-use rotating trolleys. They can greatly reduce the workload of caregivers and facilitate the transport of medical supplies to wards and other areas.
[0003] Trolleys typically use wheels at the bottom to save time and effort and make it easy to move the whole device. However, trolleys are not only used on smooth surfaces, but also moved outdoors or to other areas with poor ground conditions.
[0004] When the trolley is pushed, its bottom wheels may suddenly become blocked or stuck, causing instability and the trolley to tip over, damaging the medical products.
[0005] Therefore, it is necessary to propose a stroller that can prevent the nursing stroller from tipping over during use and greatly improve its balance. Utility Model Content
[0006] The purpose of this utility model is to provide a medical care trolley to at least partially solve the above-mentioned technical problems and prevent the trolley from tipping over during use.
[0007] To achieve the above objectives, this utility model provides the following technical solution: It includes a storage box, a chassis with wheels disposed at the bottom of the storage box, a pushing unit disposed at the bottom of the chassis, a protective unit disposed on the side of the pushing unit on the chassis, the pushing unit including a movable groove formed in the lower part of the chassis, a sliding groove formed in the inner wall of the movable groove, a slider slidably mounted inside the sliding groove, a connecting block fixedly mounted on one side of the slider, and a pushing block fixedly mounted on one side of the connecting block;
[0008] The protective unit includes a guide groove that passes through the chassis and connects to the movable groove. A limit groove is formed on the inner wall of the guide groove. A protective rod is slidably installed inside the guide groove, and a limit block is fixedly installed at the bottom of the protective rod.
[0009] Furthermore, the outer wall of the push block is rounded, and both ends of the protective rod are rounded.
[0010] Furthermore, the side area of the guide groove is larger than the side area of the protective rod, and the initial position of the protective rod is such that one end extends into the movable groove but does not exceed the center point of the movable groove.
[0011] Furthermore, the top of the limiting groove has sharp edges, the interior of the limiting groove is arc-shaped, and the upper surface area of the limiting groove is larger than the upper surface area of the limiting block.
[0012] Furthermore, the limiting grooves are arranged in a row inside the guide groove, and the limiting grooves are evenly arranged on the inner wall of the guide groove with the center of the guide groove.
[0013] Furthermore, the limiting blocks are arranged in a row on the outer wall of the protective rod. When the end of the protective rod away from the limiting groove contacts the inner wall of the guide groove, the limiting blocks do not contact the limiting groove.
[0014] Furthermore, the pushing unit and the protective unit are evenly arranged and installed on the chassis.
[0015] Furthermore, when the slider is at the bottom of the groove, the distance between the push block and the ground is shorter than the distance between the roller and the ground.
[0016] Furthermore, the slider is made of an elastic material.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] When the entire device tilts during use, the bottom of the push block is pressed upward by the ground, causing the push block to move upward and contact the protective rod. The rounded corners of the push block push the protective rod outward of the guide groove. At this time, the protective rod has a certain angle with the ground and is no longer parallel to the ground. Due to gravity, the protective rod can only slide outward until it contacts the object and generates a reaction force. The ground pushes the protective rod inward into the guide groove. At this time, the limiting block enters the limiting groove. Due to the setting of the limiting groove and the limiting block, the limiting block can only move outward and cannot move inward, thus keeping the position of the protective rod unchanged. This can support the chassis and prevent the entire device from tipping over. It is suitable for use in various places and greatly improves the balance of the entire device. Attached Figure Description
[0019] 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.
[0020] Figure 1 This is a schematic diagram of the overall structure of this embodiment;
[0021] Figure 2 This is a cross-sectional view of the chassis structure in this embodiment;
[0022] Figure 3 This is an example. Figure 2 A further cross-sectional view of the internal structure;
[0023] Figure 4 This is an enlarged schematic diagram of the structure at point A in this embodiment;
[0024] Figure 5 This is a schematic diagram of the bottom of the chassis structure in this embodiment.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 100. Storage box; 110. Chassis;
[0027] 200, Pushing unit; 210, Movable slot; 211, Slide groove; 2111, Slider; 2112, Connecting block; 21121, Pushing block;
[0028] 300, Protective unit; 310, Guide groove; 311, Limiting groove; 3111, Protective rod; 31111, Limiting block. Detailed Implementation
[0029] 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.
[0030] Please see Figure 1-5 This utility model provides a technical solution: a medical care trolley, including a storage box 100, a chassis 110 with wheels disposed at the bottom of the storage box 100, a pushing unit 200 disposed at the bottom of the chassis 110, and a protective unit 300 disposed on the side of the pushing unit 200 on the chassis 110. The pushing unit 200 and the protective unit 300 are evenly arranged and installed on the chassis 110. The storage box 100 is a conventional device on a nursing care trolley, without any special improvements or changes, and will not be described in detail here. Through the arrangement of multiple pushing units 200 and protective units 300, the chassis 110 can provide support from multiple angles.
[0031] See Figure 2 , Figure 3In a preferred embodiment, the pushing unit 200 includes a movable groove 210 formed in the lower part of the chassis 110. The inner wall of the movable groove 210 is provided with a sliding groove 211. A slider 2111 is slidably installed inside the sliding groove 211. The slider 2111 is made of elastic material. A connecting block 2112 is fixedly installed on one side of the slider 2111. A pushing block 21121 is fixedly installed on one side of the connecting block 2112.
[0032] The sliding groove 211 and slider 2111 are designed so that the bottom of the push block 21121 can move upward when it is subjected to force and downward when it is not subjected to force. This allows the push unit 200 to change according to the force state. When the whole device vibrates during movement, it indicates that the road surface conditions are poor. At this time, the slider 2111 suddenly falls downward and generates a reaction force to bounce upward, driving the push block 21121 to move upward. This causes the push block 21121 to contact the guard rod 3111 and apply a force to the guard rod 3111, causing the guard rod 3111 to slide out of the guide groove 310.
[0033] When the slider 2111 is at the bottom of the slide groove 211, the distance between the push block 21121 and the ground is shorter than that between the roller and the ground. The outer wall of the push block 21121 is rounded. The push block 21121 can slide on the ground as the whole device moves. When there is a protruding object, the rounded corner of the push block 21121 can reduce the friction with it. As the protrusion rises and passes by, it does not affect the movement of the whole device. Moreover, the push block 21121 is always in contact with the ground and can react more quickly, causing it to push upward, thereby pushing out the guard rod 3111.
[0034] See Figure 3 , Figure 4 In a further preferred embodiment, the protective unit 300 includes a guide groove 310 that passes through the chassis 110 and connects to the movable groove 210. A limiting groove 311 is formed on the inner wall of the guide groove 310. The top of the limiting groove 311 is angular, and the interior of the limiting groove 311 is arc-shaped.
[0035] The guide groove 310 allows the protective rod 3111 to slide outwards within it. Furthermore, when the entire device is tilted, the protective rod 3111 will slide out from the protective rod 3111 due to its own weight to prevent and stop the tilting.
[0036] The structure of the limiting groove 311 can be seen in the figure. That is, its protective rod 3111 can only slide outward of the guide groove 310. When the protective rod 3111 moves into the guide groove 310, the corner of the limiting block 31111 on the outer wall of the protective rod 3111 contacts the corner of the limiting groove 311 and generates a large frictional force and reaction force, which makes the protective rod 3111 unable to move into the guide groove 310.
[0037] See Figure 3 , Figure 4 and Figure 5 In a further preferred embodiment, the limiting grooves 311 are arranged in a row inside the guide groove 310. The limiting grooves 311 are evenly arranged on the inner wall of the guide groove 310 with the center of the guide groove 310. By setting multiple limiting grooves 311, the fault tolerance is greatly improved, so that the limiting block 31111 on the protective rod 3111 has more opportunities to be in the limiting groove 311 and generate a reaction force, preventing the protective rod 3111 from moving into the guide groove 310.
[0038] A protective rod 3111 is slidably installed inside the guide groove 310. The side area of the guide groove 310 is larger than the side area of the protective rod 3111. The initial position of the protective rod 3111 is that one end is inserted into the movable groove 210 and does not exceed the center point of the movable groove 210. As long as the protective rod 3111 is not in the center position of the movable groove 210, that is, the center point of the push block 21121 will not contact the protective rod 3111, there will be no direct upward force on the protective rod 3111, nor will there be a large reaction force. The push block 21121 will only contact the outer wall of the protective rod 3111. At this time, the friction is small, and the push block 21121 only needs to generate a small force to contact it to push the protective rod 3111.
[0039] The protective rod 3111 has two circular ends. The circular ends of the protective rod 3111 are designed to facilitate contact with the push block 21121 and reduce friction. The other is to facilitate the maximum contact area of the protective rod 3111 with the ground and other objects to generate support, increase friction, and expand the point-to-surface contact into surface-to-surface contact.
[0040] See Figure 3 , Figure 4Preferably, a limiting block 31111 is fixedly installed at the bottom of the protective rod 3111. The upper surface area of the limiting groove 311 is larger than the upper surface area of the limiting block 31111. The limiting blocks 31111 are arranged in a row on the outer wall of the protective rod 3111. The arrangement of multiple limiting blocks 31111 and limiting grooves 311 ensures that the protective rod 3111 receives a reaction force when it moves inward in the guide groove 310, preventing the protective rod 3111 from moving and thus protecting it. When the end of rod 3111 away from the limiting groove 311 contacts the inner wall of guide groove 310, the limiting block 31111 does not contact the limiting groove 311. When the whole is restored to stability, the protective rod 3111 can be lifted upward parallel to one end of the limiting block 31111 so that the limiting block 31111 does not contact the limiting groove 311. Then, the protective rod 3111 and the limiting block 31111 can be placed in the guide groove 310, which facilitates the adjustment and restoration of the protective rod 3111.
[0041] In another embodiment, a spring can be applied to the bottom of the slider 2111 to improve the sensitivity of the push block 21121, which can better collect and release elastic potential energy, and can better drive the push block 21121 to move upward so that it contacts the guard rod 3111.
[0042] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A medical care trolley, comprising a storage box (100), a chassis (110) with wheels disposed at the bottom of the storage box (100), a pushing unit (200) disposed at the bottom of the chassis (110), and a protective unit (300) disposed on the side of the pushing unit (200) on the chassis (110), characterized in that: The pushing unit (200) includes a movable groove (210) formed in the lower part of the chassis (110). The inner wall of the movable groove (210) is provided with a sliding groove (211). A slider (2111) is slidably installed inside the sliding groove (211). A connecting block (2112) is fixedly installed on one side of the slider (2111). A pushing block (21121) is fixedly installed on one side of the connecting block (2112). The protective unit (300) includes a guide groove (310) that passes through the chassis (110) and connects to the movable groove (210). A limit groove (311) is formed on the inner wall of the guide groove (310). A protective rod (3111) is slidably installed inside the guide groove (310). A limit block (31111) is fixedly installed at the bottom of the protective rod (3111).
2. The medical care trolley according to claim 1, characterized in that: The outer wall of the push block (21121) is rounded, and the two ends of the protective rod (3111) are rounded.
3. A medical care trolley according to claim 1, characterized in that: The side area of the guide groove (310) is greater than the side area of the protective rod (3111). The initial position of the protective rod (3111) is such that one end extends into the movable groove (210) and does not exceed the center point of the movable groove (210).
4. A medical care trolley according to claim 1, characterized in that: The top of the limiting groove (311) is angular, the interior of the limiting groove (311) is arc-shaped, and the upper surface area of the limiting groove (311) is larger than the upper surface area of the limiting block (31111).
5. A medical care trolley according to claim 4, characterized in that: The limiting groove (311) is opened in a row in the guide groove (310), and the limiting groove (311) is evenly opened on the inner wall of the guide groove (310) with the center of the guide groove (310).
6. A medical care trolley according to claim 1, characterized in that: The limiting blocks (31111) are arranged in a row on the outer wall of the protective rod (3111). When the end of the protective rod (3111) away from the limiting groove (311) contacts the inner wall of the guide groove (310), the limiting blocks (31111) do not contact the limiting groove (311).
7. A medical care trolley according to claim 1, characterized in that: The pushing unit (200) and the protective unit (300) are evenly arranged and installed on the chassis (110).
8. A medical care trolley according to claim 1, characterized in that: When the slider (2111) is at the bottom of the groove (211), the distance between the push block (21121) and the ground is shorter than the distance between the roller and the ground.
9. A medical care trolley according to claim 8, characterized in that: The slider (2111) is made of an elastic material.