Multifunctional medical hanging column

By using a rotating shaft design and linear drive motor control, the problem of shaking during tower movement was solved, enabling stable movement of the lifting column and support platform, improving the safety and reliability of the equipment, and extending its service life.

CN224540513UActive Publication Date: 2026-07-24SHANGHAI FLOWER MEDICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI FLOWER MEDICAL EQUIP CO LTD
Filing Date
2025-09-03
Publication Date
2026-07-24

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    Figure CN224540513U_ABST
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Abstract

The utility model relates to a kind of multifunctional medical hanging column, including crossbeam and sliding block, sliding block is fixedly installed at the bottom of crossbeam, the bottom of sliding block is fixedly installed with pivot, pivot bottom center position is provided with shaft hole, the inside bottom end of shaft hole is detachably installed with cover plate, the top of cover plate is fixedly installed with end face bearing, end face bearing is coaxial with shaft hole, the inside top end of shaft hole is provided with coaxial pivot, the middle section of pivot is provided with protruding toric surface, the bottom end surface of toric surface is attached with the top end surface of end face bearing, the bottom end of pivot is from top to bottom through end face bearing and end cap and extends to shaft hole bottom, the bottom end of pivot is fixedly installed with crosspiece in the part of shaft hole outside, crosspiece is fixedly installed with hanging column in the bottom of one end away from pivot, hanging column is fixedly installed with bearing platform, because pivot is middle section and is provided with protruding toric surface, the part of pivot bottom end in shaft hole outside can bear very big weight by the cooperation of toric surface and end face bearing bearing.
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Description

Technical Field

[0001] This utility model relates to the field of medical equipment auxiliary devices, and in particular to a multifunctional medical pendant. Background Technology

[0002] Medical pendant systems are essential gas supply devices in modern hospital operating rooms. They are primarily used for the terminal transfer of medical gases such as oxygen, suction, compressed air, and nitrogen in operating rooms, and are typically installed in medical environments such as operating rooms and ICU wards. Pendant systems have multiple functions, such as suspending medical equipment, providing lighting, and ventilation, thus facilitating medical work. However, with the continuous updating and upgrading of medical equipment, the safety and reliability of pendant systems have become increasingly important.

[0003] Because crane towers typically require a horizontal beam and a vertical beam to control their movement range, most are simply supported beam structures. This leads to a problem of large-scale shaking at the end of the crane tower due to changes in the stress points during movement. Therefore, balancing the stress on the main moving parts of the crane tower is particularly important. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional medical pendant to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A multifunctional medical pendant column includes a crossbeam and a slider. The slider is fixedly installed at the bottom of the crossbeam, and a rotating shaft is fixedly installed at the bottom of the slider. A shaft hole is provided at the center of the bottom of the rotating shaft, and the inner bottom end of the shaft hole is set with a threaded surface. A cover plate is detachably installed at the inner bottom end of the shaft hole, and an end face bearing is fixedly installed on the top of the cover plate. The end face bearing is coaxial with the shaft hole. A coaxial rotating shaft is provided at the top of the inner end of the shaft hole. A protruding annular surface is provided in the middle section of the rotating shaft, and the bottom end of the annular surface is in contact with the top end of the end face bearing. The bottom end of the rotating shaft extends from top to bottom through the end face bearing and the end cover to the bottom of the shaft hole. A crossbar is fixedly installed on the part of the bottom end of the rotating shaft located outside the shaft hole. A pendant column is fixedly installed at the bottom of the crossbar away from the rotating shaft, and a support platform is fixedly installed on the pendant column. A ball bearing is sleeved on the top of the rotating shaft, and the outer surface of the outer ring of the ball bearing is in contact with the inner wall of the shaft hole.

[0007] By adopting the above technical solution, because the rotating shaft has a protruding annular surface in the middle section, the bottom part of the rotating shaft located outside the shaft hole can bear a large weight through the cooperation of the annular surface and the end bearing. The ball bearing can ensure the coaxiality of the rotating shaft and the shaft hole, thus restricting the rotation direction of the rotating shaft, reducing axial runout during rotation, and making the crossbar more stable when rotating. The stable movement allows the hanging column and the load-bearing platform installed on it to move stably, and the items placed on the load-bearing platform are also safer and more stable, preventing them from shaking and falling during movement.

[0008] In a further embodiment, the cover plate has a through-hole at its center, and a sealing ring is fixedly installed inside the through-hole. The inner diameter of the sealing ring is interference-fitted with the through-hole of the rotating shaft.

[0009] By adopting the above technical solution, the sealing ring can prevent external dust or liquid from entering the shaft hole through the clearance hole, thus preventing damage to the shaft and end face bearings and other components, and improving the sealing performance and safety of the overall structure. At the same time, the interference fit sealing ring can also play a certain axial limiting role for the shaft, further enhancing the stability of the structure.

[0010] In a further embodiment, the top of the inner wall of the shaft hole is provided as an anti-slip surface, and the top of the rotating shaft is provided with a receiving groove. The axis of the receiving groove is perpendicular to the axis of the rotating shaft. A linear drive motor is fixedly installed in the receiving groove. The linear drive motor consists of a motor body and a moving part. The motor body is used to make the moving part enter and leave the receiving groove.

[0011] By adopting the above technical solution, the axis of the receiving groove still needs to be set parallel to the crossbar during use, and the direction of the moving part of the linear drive motor away from the rotating shaft points towards the hanging column. With this configuration, when the crossbar rotates to its position, the linear drive motor drives the moving part away from the rotating shaft until the moving part abuts against the anti-slip surface of the inner wall of the shaft hole. This causes the forces on the bottom and top of the rotating shaft to cancel each other out, thus maintaining the perpendicularity of the rotating shaft's axis and further improving the stability of the rotating shaft after it has rotated to its position. Simultaneously, the linear drive motor also allows the rotating shaft to retract into the receiving groove via the moving part when rotation is needed, releasing the axial restriction on the rotating shaft and allowing it to rotate smoothly to meet usage requirements.

[0012] In a further embodiment, a rubber block is bonded and fixed to the surface of the moving part of the linear drive motor.

[0013] By adopting the above technical solution, the moving part of the linear drive motor is flexibly engaged with the inner wall of the shaft hole via a rubber block. Therefore, when the force exceeds a certain range, such as when the crossbar is suddenly impacted and the force exceeds a set value, the crossbar will rotate. This design reduces mechanical damage caused by accidental impacts and improves the safety and reliability of the overall structure. In addition, the rubber block itself also has a certain degree of wear resistance and corrosion resistance, which can extend the service life of the linear drive motor and the entire multifunctional medical pendant.

[0014] In a further embodiment, multiple pressure sensors are axially and uniformly arranged between the annular surface and the top surface of the end bearing.

[0015] By adopting the above technical solution, the distance and position of the moving part of the linear drive motor are controlled by the force feedback from multiple pressure sensors. Since the rubber layer will wear during use, a force feedback system is required to control the linear drive motor.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. The combination of the annular surface and the end face bearing allows the bottom of the shaft, located outside the shaft hole, to bear a large weight. The ball bearing ensures the coaxiality of the shaft and the shaft hole, thus restricting the direction of rotation and reducing axial runout during rotation. This makes the beam rotate more smoothly, and the smooth movement allows the hanging column and the load-bearing platform installed on it to move stably. Items placed on the load-bearing platform are also safer and more stable, preventing them from shaking and falling during movement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram illustrating the internal structure of the rotating shaft used to demonstrate this utility model.

[0020] In the diagram, 1 is the crossbeam; 2 is the slider; 3 is the shaft; 4 is the cover plate; 5 is the end face bearing; 6 is the crossbar; 7 is the hanging column; 8 is the ball bearing; and 9 is the linear drive motor. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0023] Example 1:

[0024] like Figures 1-2 As shown, a multifunctional medical pendant includes a crossbeam 1 and a slider 2. The slider 2 is fixedly installed at the bottom of the crossbeam 1. A rotating shaft 3 is fixedly installed at the bottom of the slider 2. A shaft hole is provided at the center of the bottom of the rotating shaft 3. The inner bottom end of the shaft hole is set as a threaded surface. A cover plate 4 is detachably installed at the inner bottom end of the shaft hole. An end face bearing 5 is fixedly installed on the top of the cover plate 4. The end face bearing 5 is coaxial with the shaft hole. A coaxial rotating shaft 3 is provided at the top of the inner end of the shaft hole. A protruding annular surface is provided in the middle section of the rotating shaft 3. The bottom end of the annular surface fits against the top end of the end face bearing 5. The bottom end of the rotating shaft 3 extends from top to bottom through the end face bearing 5 and the end cover to the bottom of the shaft hole. A crossbar 6 is fixedly installed on the part of the bottom end of the rotating shaft 3 located outside the shaft hole. A pendant 7 is fixedly installed at the bottom of the end of the crossbar 6 away from the rotating shaft 3. A support platform is fixedly installed on the hanging column 7; a ball bearing 8 is sleeved on the top of the rotating shaft 3, and the outer surface of the outer ring of the ball bearing 8 is in contact with the inner wall of the shaft hole; a clearance hole is provided in the center of the cover plate 4, and a sealing ring is fixedly installed in the clearance hole, with the inner diameter of the sealing ring being interference-fitted with the through part of the rotating shaft 3; the top of the inner wall of the shaft hole is set as an anti-slip surface, and a receiving groove is provided on the top of the rotating shaft 3, with the axis of the receiving groove being perpendicular to the axis of the rotating shaft 3; a linear drive motor 9 is fixedly installed in the receiving groove, and the linear drive motor 9 consists of a motor body and a moving part, with the motor body used to move the moving part into and out of the receiving groove; a rubber block is bonded and fixed to the surface of the moving part of the linear drive motor 9; multiple pressure sensors are axially and evenly arranged between the surface of the annular surface and the top surface of the end bearing 5.

[0025] Specific implementation process: First, fix the crossbeam to the ceiling inside the room. Then, thread a wire through the crossbeam and slide the slider to the bottom of the crossbeam. After adjusting the slider's position, fix its relative position to the crossbeam. At this point, the rotating shaft and crossbar at the bottom of the slider are in a free state and can be adjusted according to usage requirements. When the hanging column needs to be used, the linear drive motor can be started, causing the moving part to leave the receiving groove and gradually approach the anti-slip surface of the shaft hole until it is locked in place. During this process, the force feedback from multiple pressure sensors allows for precise control of the distance and position of the moving part of the linear drive motor, ensuring that the axis of the rotating shaft remains vertical, thereby improving the stability of the rotating shaft after it has reached its position. Simultaneously, because the surface of the moving part of the linear drive motor is bonded with rubber blocks, when the force exceeds a certain range, such as when the crossbar is suddenly impacted, the crossbar will rotate to a certain extent. This feature reduces mechanical damage caused by accidental impacts and improves the overall structural safety and reliability. Furthermore, the rubber block itself possesses a certain degree of wear resistance and corrosion resistance, which can further extend the service life of the linear drive motor and the entire multi-functional medical pendant. During use, medical personnel can flexibly suspend and move the medical equipment by adjusting the position of the slider and rotating components such as the crossbar, thereby providing more convenient conditions for medical work. To prevent the cover plate from loosening and slipping during long-term use, an anti-rotation structure needs to be installed at the installation point of the cover plate. For example, a raised rectangular block can be welded to the bottom of the cover plate, and a corresponding protrusion can be welded to the bottom of the rotating shaft. The two protrusions can be aligned and secured with a pin.

[0026] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A multifunctional medical pendant, characterized in that: The assembly includes a crossbeam (1) and a slider (2). The slider (2) is fixedly installed at the bottom of the crossbeam (1). A rotating shaft (3) is fixedly installed at the bottom of the slider (2). A shaft hole is provided at the center of the bottom of the rotating shaft (3). The inner bottom end of the shaft hole is set as a threaded surface. A cover plate (4) is detachably installed at the inner bottom end of the shaft hole. An end face bearing (5) is fixedly installed at the top of the cover plate (4). The end face bearing (5) is coaxial with the shaft hole. A coaxial rotating shaft (3) is provided at the top of the inner end of the shaft hole. A protrusion is provided in the middle section of the rotating shaft (3). The bottom surface of the annular surface is in contact with the top surface of the end bearing (5). The bottom end of the rotating shaft (3) extends from top to bottom through the end bearing (5) and the end cover to the bottom of the shaft hole. A crossbar (6) is fixedly installed on the part of the bottom end of the rotating shaft (3) located outside the shaft hole. A hanging column (7) is fixedly installed at the bottom of the end of the crossbar (6) away from the rotating shaft (3). A load-bearing platform is fixedly installed on the hanging column (7). A ball bearing (8) is sleeved on the top end of the rotating shaft (3). The outer surface of the outer ring of the ball bearing (8) is in contact with the inner wall of the shaft hole.

2. The multifunctional medical pendant column according to claim 1, characterized in that: The cover plate (4) has a through hole at its center, and a sealing ring is fixedly installed inside the through hole. The inner diameter of the sealing ring is interference-fitted with the through part of the rotating shaft (3).

3. The multifunctional medical pendant according to claim 1, characterized in that: The top of the inner wall of the shaft hole is set as an anti-slip surface. The top of the rotating shaft (3) is provided with a receiving groove. The axis of the receiving groove is perpendicular to the axis of the rotating shaft (3). A linear drive motor (9) is fixedly installed in the receiving groove. The linear drive motor (9) consists of a motor body and a moving part. The motor body is used to make the moving part enter and leave the receiving groove.

4. A multifunctional medical pendant column according to claim 3, characterized in that: A rubber block is bonded and fixed to the surface of the moving part of the linear drive motor (9).

5. A multifunctional medical pendant column according to claim 1, characterized in that: Multiple pressure sensors are axially and evenly arranged between the annular surface and the top surface of the end bearing (5).