Medical trolley with built-in compact energy-absorbing damping system

Abstract

This utility model provides a medical caster with a built-in compact energy-absorbing and shock-absorbing system, relating to the field of medical casters. It includes a roller, a housing assembly comprising a sleeve, a shell located on one side of the sleeve, a sliding guide rail located between the sleeve and the shell, and an end cap located on the top of the sleeve. The roller is located within the inner cavity of the shell. The shock-absorbing assembly includes a wheel frame located on the surface of the roller, a bracket located at the upper end of the inner cavity of the sleeve, and a hydraulic buffer damper installed within the inner cavity of the bracket. This utility model, through its built-in compact energy-absorbing and shock-absorbing device, effectively reduces shock during the movement of the medical caster. Through the coordinated work of the housing assembly and the shock-absorbing assembly, it ensures that the caster can run smoothly when encountering uneven ground, ground gaps, or small obstacles, avoiding vehicle vibration and thus protecting the safety of internal precision equipment and medicines. Simultaneously, it reduces resonance noise and effectively improves the user experience in hospitals.

Description

Technical Field

[0001] This utility model belongs to the field of medical casters, specifically a medical caster with a built-in compact energy absorption and shock absorption system. Background Technology

[0002] Medical casters are casters specifically designed to adapt to the hospital environment. They are characterized by their light and easy operation, flexible steering, high elasticity, and wear resistance. They are widely used in medical equipment such as hospital beds, emergency beds, and transport beds, and can meet various needs of the medical environment.

[0003] However, most existing medical casters are not equipped with effective shock absorption mechanisms, or use simple elastic components to achieve rough cushioning. Such structures cannot effectively cope with ground undulations, ground cracks or small obstacles when moving medical equipment, often resulting in severe vehicle vibration, affecting the safety of internal precision equipment and medicines, and generating resonance noise, which reduces the hospital's user experience.

[0004] In summary, this utility model provides a medical caster with a built-in compact energy-absorbing and shock-absorbing system to solve the above problems. Utility Model Content

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

[0006] A medical caster with a built-in compact energy-absorbing and shock-absorbing system includes a roller, a housing assembly including a sleeve, a housing located on one side of the sleeve, a sliding guide rail located between the sleeve and the housing, and an end cap located on the top of the sleeve, with the roller located in the inner cavity of the housing. The shock-absorbing assembly includes a wheel frame located on the surface of the roller, a bracket located at the upper end of the inner cavity of the sleeve, a hydraulic buffer damper installed in the inner cavity of the bracket, and a concave seat located on one side of the wheel frame.

[0007] Furthermore, in this utility model, a directional brake is installed at the upper end of the surface of the housing, and the braking end of the directional brake is located in the inner cavity of the housing, and the end cap is fixed to the top of the sleeve.

[0008] Furthermore, in this utility model, one end of the sliding guide rail is fixedly connected to the housing, and the other end of the sliding guide rail extends into the inner cavity of the sleeve and is movably connected to the inner cavity of the sleeve.

[0009] Furthermore, in this invention, the housing is fixed to the surface of the wheel frame, and one end of the wheel frame is rotatably connected to the roller via a pivot.

[0010] Furthermore, in this utility model, the concave seat is fixedly connected to the inner wall of the sleeve, the other end of the wheel frame is movably connected to the inner cavity of the concave seat through a movable pin, and the bracket is fixed to the upper end of the inner cavity of the sleeve.

[0011] Furthermore, in this utility model, one end of the hydraulic buffer damper is movably connected to the inner wall of the bracket via a movable pin, and the output end of the hydraulic buffer damper is movably connected to the upper end of the wheel frame via a movable pin.

[0012] Furthermore, in this utility model, the outer surface of the housing is an integrated closed curved surface structure, and the sliding guide rail and the sleeve form a curved guide rail sealing structure, which can perform arc-shaped expansion and contraction as vibration is avoided.

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

[0014] This invention achieves effective shock absorption during the movement of medical casters by incorporating a compact energy-absorbing and shock-absorbing device. Through the coordinated work of the outer shell component and the shock-absorbing component, it ensures that the casters can run smoothly when encountering uneven ground, ground gaps or small obstacles, avoiding vehicle vibration and thus protecting the safety of internal precision equipment and medicines. At the same time, it reduces resonance noise and effectively improves the hospital user experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the separated structure of the outer shell assembly and the roller of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the roller and the shock-absorbing component of this utility model;

[0018] Figure 4 This is a rear view structural schematic diagram of the shock absorption component of this utility model.

[0019] In the picture:

[0020] 100, Roller; 200, Housing assembly; 210, Sleeve; 220, Housing; 230, Sliding guide rail; 240, End cap; 300, Shock absorption assembly; 310, Wheel frame; 320, Bracket; 330, Hydraulic buffer damper; 340, Concave seat; 400, Directional brake. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides a medical caster with a built-in compact energy-absorbing and shock-absorbing system, including a roller 100, a housing assembly 200 including a sleeve 210, a housing 220 located on one side of the sleeve 210, a sliding guide rail 230 located between the sleeve 210 and the housing 220, and an end cap 240 located on the top of the sleeve 210. The roller 100 is located in the inner cavity of the housing 220. The shock-absorbing assembly 300 includes a wheel frame 310 located on the surface of the roller 100, a bracket 320 located at the upper end of the inner cavity of the sleeve 210, a hydraulic buffer damper 330 installed in the inner cavity of the bracket 320, and a concave seat 340 located on one side of the wheel frame 310.

[0024] like Figure 1-4 As shown, to achieve sufficient compression stroke within a compact volume, a pivot-linked transmission structure is adopted. The hydraulic damper 330 is connected to the bracket 320 and wheel frame 310 via a movable pin, forming an active damping mechanism. The up-and-down movement of the wheel frame 310 is converted into the linear compression action of the hydraulic damper 330, thereby effectively improving energy absorption efficiency. The damping component 300 is located inside the sealed shell component 200. The sliding guide rail 230 forms a guide rail sealing structure between the sleeve 210 and the shell 220, which has guiding and auxiliary buffering functions. Through the arc-shaped contraction and extension of the sleeve 210, shell 220 and sliding guide rail 230 during the damping operation, the structural appearance is continuous, the surface is sealed, and it is seamless and anti-contamination during the shock absorption process. The shell 220 adopts a curved surface coverage and groove-free design, which is conducive to cleaning and disinfection, thereby meeting medical and health conditions. Through the synergistic effect of the hydraulic damper 330 and the sliding guide rail 230, the efficient absorption and release of vibration energy is achieved, which can effectively solve the shortcomings of existing medical casters in terms of shock absorption performance.

[0025] Example 2

[0026] Reference Figure 1-4This is the second embodiment of the present invention, which is based on the previous embodiment.

[0027] In this embodiment, a directional brake 400 is installed on the upper end of the surface of the housing 220, and the braking end of the directional brake 400 is located in the inner cavity of the housing 220, and the end cap 240 is fixed to the top of the sleeve 210.

[0028] One end of the sliding guide rail 230 is fixedly connected to the housing 220, and the other end of the sliding guide rail 230 extends into the inner cavity of the sleeve 210 and is movably connected to the inner cavity of the sleeve 210.

[0029] The housing 220 is fixed to the surface of the wheel frame 310, and one end of the wheel frame 310 is rotatably connected to the roller 100 via a pivot.

[0030] The concave seat 340 is fixedly connected to the inner wall of the sleeve 210, and the other end of the wheel frame 310 is movably connected to the inner cavity of the concave seat 340 through a movable pin. The bracket 320 is fixed to the upper end of the inner cavity of the sleeve 210.

[0031] One end of the hydraulic buffer damper 330 is movably connected to the inner wall of the bracket 320 via a movable pin, and the output end of the hydraulic buffer damper 330 is movably connected to the upper end of the wheel frame 310 via a movable pin.

[0032] The outer shell 220 has an integrated closed curved surface structure. The stroke of the hydraulic buffer damper 330 is no more than 16mm, and the energy absorption is no less than 20J. The sliding guide rail 230 and the sleeve 210 form a curved guide rail sealing structure, which expands and contracts in an arc shape as the vibration is damped.

[0033] like Figure 1-4 As shown, when the roller 100 vibrates under external force, the wheel frame 310 drives the hydraulic damper 330 to perform linear compression. The hydraulic damper 330 dissipates energy through the flow of hydraulic oil inside, thereby achieving a shock absorption effect. At the same time, the sliding guide rail 230 forms a guide rail sealing structure between the sleeve 210 and the housing 220, which not only has a guiding function but also assists in buffering, further improving the shock absorption performance. In addition, the concave seat 340 is fixedly connected to the inner wall of the sleeve 210, providing stable support for the wheel frame 310 and ensuring the stability of the shock absorption component 300 during operation. The directional brake 400 brakes the medical casters, allowing the medical equipment to be parked stably and preventing slippage or movement, thereby improving the safety of using the medical equipment. Furthermore, the directional brake 400 also allows medical staff to easily release the brake when they need to move the medical equipment, allowing the medical casters to rotate flexibly, facilitating the pushing and turning of the medical equipment.

[0034] When the medical equipment encounters uneven ground or sudden impact during movement, the roller 100 is subjected to external impact force, which is transmitted to the wheel frame 310. The wheel frame 310 then transmits the force to the hydraulic buffer damper 330 and the concave seat 340 structure connected to it. Since one end of the wheel frame 310 is connected to the concave seat 340 through a movable pin and the other end is connected to the roller 100 through a pivot, a swingable lever structure is formed, which enables the impact force to be effectively dispersed and absorbed. One end of the hydraulic buffer damper 330 is connected to the bracket 320 and the other end is connected to the wheel frame 310. When subjected to force, it generates compression or tension action, thereby realizing the dynamic absorption and slow release of impact energy.

[0035] The sliding guide rail 230 connects the housing 220 and the sleeve 210, allowing the housing 220 to perform limited arc-shaped expansion and contraction in cooperation with the sliding guide rail 230 during shock absorption. This not only improves the freedom of shock absorption movement but also enhances its guiding stability, preventing deviation or jamming. The curved sealing structure formed by the sliding guide rail 230 and the sleeve 210 achieves automatic sealing compensation during shock absorption operation, preventing external dust from entering the internal structure and ensuring the long-term stability of the shock absorption component 300.

[0036] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0037] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A medical caster with a built-in compact energy-absorbing and shock-absorbing system, characterized in that: include, Roller (100); The housing assembly (200) includes a sleeve (210), a housing (220) located on one side of the sleeve (210), a sliding guide rail (230) located between the sleeve (210) and the housing (220), and an end cap (240) located on the top of the sleeve (210), and a roller (100) located in the inner cavity of the housing (220); The shock absorption assembly (300) includes a wheel frame (310) located on the surface of the roller (100), a bracket (320) located at the upper end of the inner cavity of the sleeve (210), a hydraulic buffer damper (330) installed in the inner cavity of the bracket (320), and a concave seat (340) located on one side of the wheel frame (310).

2. The medical caster with a built-in compact energy-absorbing and shock-absorbing system as described in claim 1, characterized in that: A directional brake (400) is installed on the upper end of the surface of the housing (220), and the braking end of the directional brake (400) is located in the inner cavity of the housing (220). The end cap (240) is fixed to the top of the sleeve (210).

3. The medical caster with a built-in compact energy-absorbing and shock-absorbing system as described in claim 1, characterized in that: One end of the sliding guide rail (230) is fixedly connected to the housing (220), and the other end of the sliding guide rail (230) extends into the inner cavity of the sleeve (210) and is movably connected to the inner cavity of the sleeve (210).

4. The medical caster with a built-in compact energy-absorbing and shock-absorbing system as described in claim 1, characterized in that: The housing (220) is fixed to the surface of the wheel frame (310), and one end of the wheel frame (310) is rotatably connected to the roller (100) via a pivot.

5. The medical caster with a built-in compact energy-absorbing and shock-absorbing system as described in claim 1, characterized in that: The concave seat (340) is fixedly connected to the inner wall of the sleeve (210), and the other end of the wheel frame (310) is movably connected to the inner cavity of the concave seat (340) through a movable pin. The bracket (320) is fixed to the upper end of the inner cavity of the sleeve (210).

6. The medical caster with a built-in compact energy-absorbing and shock-absorbing system as described in claim 1, characterized in that: One end of the hydraulic damper (330) is movably connected to the inner wall of the bracket (320) via a movable pin, and the output end of the hydraulic damper (330) is movably connected to the upper end of the wheel frame (310) via a movable pin.

7. The medical caster with a built-in compact energy-absorbing and shock-absorbing system as described in claim 1, characterized in that: The outer surface of the housing (220) is an integrated closed curved surface structure. The sliding guide rail (230) and the sleeve (210) form a curved guide rail sealing structure, which can extend and retract in an arc shape as the vibration is avoided.

Images