Medical bed lifting plastic part with good stability
By incorporating reinforcing components into the crank handle structure of the medical bed, the problem of wear on plastic parts caused by crank handle wobbling was solved, resulting in greater stability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-10
AI Technical Summary
The existing medical bed crank handle is prone to shaking when turned, which leads to wear or damage to the plastic parts and poor stability.
A reinforcing component is incorporated into the crank mechanism of the medical bed. This component allows the pressure from the crank to be applied directly to the reinforcing component, reducing the swaying of the main body. The design includes a combination of a reinforcing sleeve, an inner pad ring, a knob, a screw, and a contact plate.
It improves the stability of the medical bed crank handle, reduces wear on the main body, and extends its service life.
Smart Images

Figure CN223979911U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a medical plastic part, specifically a medical bed lifting plastic part with good stability. Background Technology
[0002] A height-adjustable medical bed is a specialized medical device primarily used in hospitals and home care settings. It features height and angle adjustments to meet various patient needs. A typical height-adjustable medical bed consists of a bed frame, a lifting mechanism, and an angle adjuster. The lifting mechanism raises or lowers the bed surface, while the angle adjuster allows for forward / backward or left / right adjustments to facilitate different medical and daily activities.
[0003] When the medical bed needs to be raised or lowered, medical staff need to turn the crank handle to operate the corresponding lifting mechanism to achieve the desired effect. Currently, the crank handles used for medical beds, in addition to their own rotation, also exhibit a certain degree of wobbling when turned. Therefore, after prolonged use, some plastic parts around the crank handle may be worn or directly damaged. Utility Model Content
[0004] The purpose of this utility model is to provide a medical bed lifting plastic component with good stability. By setting a reinforcing component, the pressure generated when the crank is turned is directly applied to the reinforcing component, thereby reducing the pressure directly borne by the main body. The reinforcing component also reduces the shaking of the main body, thus making the main body more stable.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical bed lifting plastic component with good stability, comprising a main body and a reinforcing component disposed on the main body. The main body includes a housing with a threaded mounting portion. The reinforcing component includes a reinforcing sleeve and an inner pad ring disposed on the inner side of the reinforcing sleeve. Multiple knobs are disposed in the circumferential direction of the reinforcing sleeve. Multiple inner protrusions are disposed between the reinforcing sleeve and the inner pad ring. Each knob corresponds to one of the multiple inner protrusions. A sliding groove is disposed at the end of each of the multiple inner protrusions away from the knobs. The multiple sliding grooves pass through the inner pad ring. A screw is fixedly connected to each of the multiple knobs. The multiple screws are rotatably connected to the multiple inner protrusions. A contact plate is threadedly mounted on each of the multiple screws. The multiple contact plates are respectively in contact with the inner wall of the multiple sliding grooves, so that when the screws are rotated, they can drive the contact plates to move horizontally along the inner wall of the sliding grooves.
[0006] Preferably, both the reinforcing sleeve and the inner washer ring are fixedly connected to the threaded mounting portion at the end away from the housing.
[0007] Preferably, both the reinforcing sleeve and the inner gasket ring are designed in a ring shape.
[0008] Preferably, multiple guardrails are provided between the reinforcing sleeve and the inner pad ring, with both ends of the guardrails being fixedly connected to the reinforcing sleeve and the inner pad ring respectively. The multiple guardrails can serve to reinforce the reinforcing sleeve and the inner pad ring.
[0009] Preferably, multiple outer plates are fixed on the outer circle of the reinforcing sleeve, and multiple knobs are respectively rotatably connected to the multiple outer plates.
[0010] Preferably, all the inner protrusions are fixedly connected to the reinforcing sleeve and the inner washer ring, so that the inner protrusions remain fixed.
[0011] Preferably, the knob, inner protrusion, and screw are all inclined.
[0012] Preferably, one end of the contact plate is located inside the groove, and the other end extends out of the groove and is disposed inside the inner pad ring.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a reinforcing component on the main body, which is located near the position of the hand operation, the main body and the reinforcing component rotate simultaneously when the hand turns the crank handle. The pressure generated when the crank handle rotates is directly applied to the reinforcing component, thereby reducing the pressure directly borne by the main body. The reinforcing component also reduces the shaking of the main body, thus making the main body more stable. Attached Figure Description
[0014] Figure 1 This is one of the schematic diagrams of an embodiment of the present utility model.
[0015] Figure 2 This is a second schematic diagram of an embodiment of the present utility model.
[0016] Figure 3 This utility model Figure 1 A cross-sectional view along the AA direction.
[0017] Figure 4 This utility model Figure 3 Enlarged view of the structure at point B in the middle.
[0018] The reference numerals and names in the figure are as follows: 1. Main body; 11. Housing; 12. Threaded mounting part; 2. Reinforcing component; 21. Reinforcing sleeve; 22. Inner washer ring; 23. Guard plate; 24. Outer plate; 25. Knob; 26. Inner protrusion; 27. Slide groove; 28. Screw; 29. Contact plate. Detailed Implementation
[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0022] Please see Figures 1 to 4This utility model provides an embodiment of a medical bed lifting plastic component with good stability, comprising a main body 1 and a reinforcing component 2 disposed on the main body 1. The main body 1 includes a housing 11, on which a threaded mounting portion 12 is provided. The reinforcing component 2 includes a reinforcing sleeve 21 and an inner washer 22 disposed inside the reinforcing sleeve 21. Both the reinforcing sleeve 21 and the inner washer 22 are fixedly connected to the end of the threaded mounting portion 12 away from the housing 11, and both the reinforcing sleeve 21 and the inner washer 22 are annular in design. Multiple guardrails 23 are provided between the reinforcing sleeve 21 and the inner gasket 22. The two ends of each guardrail 23 are fixedly connected to the reinforcing sleeve 21 and the inner gasket 22, respectively. The multiple guardrails 23 serve to reinforce the reinforcing sleeve 21 and the inner gasket 22. Multiple outer plates 24 are fixed to the outer circumference of the reinforcing sleeve 21. Multiple knobs 25 are provided circumferentially on the reinforcing sleeve 21, and each knob 25 is rotatably connected to one of the outer plates 24, allowing the knobs 25 to rotate freely. A [missing information - likely a concave or convex structure] is provided between the reinforcing sleeve 21 and the inner gasket 22. Multiple inner protrusions 26 are fixedly connected to the reinforcing sleeve 21 and the inner washer ring 22, keeping the inner protrusions 26 stationary. Multiple knobs 25 correspond one-to-one with each inner protrusion 26. A sliding groove 27 is provided at the end of each inner protrusion 26 away from the knob 25, and each sliding groove 27 passes through the inner washer ring 22. Screws 28 are fixedly connected to each knob 25. The knobs 25, inner protrusions 26, and screws 28 are all inclined, with an angle between 3° and 10°. Multiple screws 28... 8 are rotatably connected to multiple inner protrusions 26, and multiple screws 28 are threaded with contact plates 29. Multiple contact plates 29 are respectively attached to the inner walls of multiple slide grooves 27, so that when the screws 28 are running, they can drive the contact plates 29 to move along the inner wall of the slide grooves 27. One end of the contact plate 29 is located in the slide groove 27, and the other end extends out of the slide groove 27 and is set on the inner side of the inner pad ring 22, so that the contact plate 29 can abut against the crank structure of the medical bed, thereby avoiding excessive pressure on the main body 1 caused by the crank structure.
[0023] In this invention, the main body 1 and the reinforcing component 2 together form part of the crank handle structure in the medical bed lifting mechanism. During installation, the columnar handle on the crank handle needs to pass through the housing 11 and the threaded mounting part 12, as well as the inner pad ring 22. Then, multiple knobs 25 are rotated to drive multiple screws 28 to rotate, so that multiple contact plates 29 contact the columnar handle on the crank handle. This allows the contact plates 29 to directly contact the columnar handle, so that when the operator turns the crank handle (to lift the medical bed), a portion of the pressure generated by the crank handle is directly applied to the multiple contact plates 29, the reinforcing housing 21, and the inner pad ring 22, thereby reducing the pressure on the housing 11 and the threaded mounting part 12 and making the main body 1 more stable. At the same time, the multiple contact plates 29 support the crank handle from different directions, which also improves the stability of the plastic part.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A medical bed lifting plastic part with good stability, comprising a main body (1) and a reinforcing assembly (2) arranged on the main body (1), characterized in that: The main body (1) comprises a sleeve (11) provided with a threaded mounting portion (12), the reinforcing assembly (2) comprises a reinforcing sleeve (21) and an inner gasket ring (22) arranged inside the reinforcing sleeve (21), a plurality of knobs (25) are arranged in the circumferential direction of the reinforcing sleeve (21), a plurality of inner bosses (26) are arranged between the reinforcing sleeve (21) and the inner gasket ring (22), the ends of the plurality of inner bosses (26) away from the knobs (25) are provided with sliding grooves (27), the plurality of sliding grooves (27) penetrate the inner gasket ring (22), a plurality of screw rods (28) are fixedly connected to the plurality of knobs (25) respectively, the plurality of screw rods (28) are rotatably connected to the plurality of inner bosses (26) respectively, and the plurality of screw rods (28) are respectively provided with contact plates (29) in threaded mode, and the plurality of contact plates (29) are respectively attached to the inner walls of the plurality of sliding grooves (27).
2. The medical bed lifting plastic part with good stability according to claim 1, characterized in that: The reinforcing sleeve (21) and the inner gasket ring (22) are fixedly connected to the end of the threaded mounting portion (12) away from the sleeve (11).
3. The medical bed lifting plastic part with good stability according to claim 1, characterized in that: The reinforcing sleeve (21) and the inner gasket ring (22) are annular in design.
4. The medical bed lifting plastic part with good stability according to claim 1, characterized in that: A plurality of fence plates (23) are arranged between the reinforcing sleeve (21) and the inner gasket ring (22), and the two ends of the fence plate (23) are fixedly connected to the reinforcing sleeve (21) and the inner gasket ring (22) respectively.
5. The medical bed lifting plastic part with good stability according to claim 1, characterized in that: A plurality of outer pasting plates (24) are fixed to the outer circle of the reinforcing sleeve (21), and the plurality of knobs (25) are rotatably connected to the plurality of outer pasting plates (24) respectively.
6. The medical bed lifting plastic part with good stability according to claim 1, characterized in that: The plurality of inner bosses (26) are fixedly connected to the reinforcing sleeve (21) and the inner gasket ring (22).
7. The medical bed lifting plastic part with good stability according to claim 1, characterized in that: The knobs (25), the inner bosses (26) and the screw rods (28) are arranged obliquely, and the inclination angle is between 3° and 10°.
8. The medical bed lifting plastic part with good stability according to claim 1, characterized in that: One end of the contact plate (29) is located in the sliding groove (27), and the other end extends out of the sliding groove (27) and is arranged inside the inner gasket ring (22).