CN-224220369-U - Upright post lifting mechanism of operating table

CN224220369UCN 224220369 UCN224220369 UCN 224220369UCN-224220369-U

Abstract

The utility model belongs to the technical field of medical devices, and particularly relates to an upright post lifting mechanism of an operating table. The stand column lifting mechanism comprises a base, a lower stand column, a middle stand column, an upper stand column and a two-stage hydraulic cylinder, wherein the lower stand column is fixed at the center of the base, the middle stand column is arranged on the inner side of the lower stand column, the upper stand column is sleeved on the middle stand column, a lower vertical guide rail is arranged on one inner side surface of the lower stand column, a lower sliding block is arranged on the lower vertical guide rail, a lower limiting plate is arranged at the top end of the lower vertical guide rail, the lower sliding block is fixedly connected with the middle stand column, an upper vertical guide rail is arranged on one inner side surface of the upper stand column, an upper sliding block is arranged on the upper vertical guide rail, an upper limiting plate is arranged at the upper end of the upper vertical guide rail, the upper sliding block is fixedly connected with the middle stand column, an upper push rod of the two-stage hydraulic cylinder is fixedly connected with the upper stand column, and a lower push rod of the two-stage hydraulic cylinder is fixedly connected with the base. The mechanism can ensure stable lifting process, stable structure and no shaking phenomenon.

Inventors

LIN PEIQING

Assignees

河北谊安奥美医疗设备有限公司

Dates

Publication Date: 20260512
Application Date: 20250529

Claims (7)

1. The upright post lifting mechanism of the operating bed is characterized by comprising a base, a lower upright post, a middle upright post, an upper upright post and a two-stage hydraulic cylinder; The lower upright post is fixed on the base, the middle upright post is arranged on the inner side of the lower upright post, and the upper upright post is sleeved on the middle upright post; the upper vertical guide rail is arranged on one inner side surface of the upper upright post, the upper slide block is arranged on the upper end of the upper vertical guide rail, and the upper slide block is fixedly connected with the middle upright post; The two-stage hydraulic cylinder is fixed on the middle upright post, an upper push rod of the two-stage hydraulic cylinder is fixedly connected with the upper upright post, and a lower push rod of the two-stage hydraulic cylinder is fixedly connected with the base.
2. The operating table column lifting mechanism of claim 1, wherein the lower slider and the upper slider are fixedly connected to opposite sides of the middle column, respectively.
3. The operating table column lifting mechanism of claim 1 wherein the dual stage hydraulic cylinder comprises two identical hydraulic cylinders connected in parallel with the push rods of the two hydraulic cylinders extending in opposite directions.
4. The operating table column lifting mechanism according to claim 1, wherein a push rod fixing plate is arranged at the top end of the upper column, and the upper push rod is fixedly connected with the push rod fixing plate.
5. The operating table column lifting mechanism according to claim 1, further comprising an oil pipe lifting structure, wherein the oil pipe lifting structure comprises a drag chain, a drag chain cover and a drag chain guide post, the drag chain cover is arranged on the outer side face of the upper column, the drag chain is arranged in the drag chain cover, one end of the drag chain is fixed on the middle column, and the drag chain is provided with the drag chain guide post above a position of the drag chain cover.
6. The operating table column lifting mechanism according to claim 1, further comprising a wire lifting structure, wherein the wire lifting structure comprises a stay plate and a winding roll, the stay plate is fixed on the outer surface of the upper column, and the winding roll is fixed on the base, and the stay plate and the winding roll correspond to each other vertically.
7. The operating table column lifting mechanism according to claim 1, wherein the upper column is provided with a stay wire sensor, and the bottom of the lower column is provided with a sensor probe matched with the stay wire sensor.

Description

Upright post lifting mechanism of operating table Technical Field The utility model belongs to the technical field of medical devices, and particularly relates to an upright post lifting mechanism of an operating table. Background The electric operating table is core equipment of a modern operating room, and needs to meet the requirements of multi-scene operation body position adjustment (such as height, inclination, trendelenburg position and the like), and the stability, precision and reliability of the electric operating table directly influence the operation safety. The upright column lifting structure is used as a core supporting component and bears the lifting and loading functions of the bed body, and the performance requirement is extremely high. The existing multisection upright post is easy to shake when being fully extended (especially when being stressed laterally), and the operation precision is affected. The gap increases after the traditional guide structure wears, resulting in lifting jitter. When the electric push rod is overloaded, screw thread deformation or motor stalling is easy to occur. The utility model patent CN219423213U discloses an electric operating table lifting device, which comprises a lower upright post, a middle upright post, an upper upright post and a plurality of interval adjusting modules, wherein the interval adjusting modules are composed of elastic lining plates and needle bearings, the middle upright post is connected with the lower upright post through the interval adjusting modules, the elastic lining plates are elastically deformed through adjusting bolts on the middle upright post, the needle bearings are pushed to be close to or far away from the lower upright post, and the stable lifting of the lower upright post is realized. However, the structural load of the device is heavy and light, the lifting process is not stable enough, and the adjustment is time-consuming and labor-consuming. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provides an upright post lifting mechanism of an operating table. The mechanism can ensure stable lifting process, stable structure and no shaking phenomenon. In order to achieve the above purpose, the utility model adopts the following technical scheme: The upright column lifting mechanism of the operating bed comprises a base, a lower upright column, a middle upright column, an upper upright column and a two-stage hydraulic cylinder; The lower upright post is fixed on the base, the middle upright post is arranged on the inner side of the lower upright post, and the upper upright post is sleeved on the middle upright post; the upper vertical guide rail is arranged on one inner side surface of the upper upright post, the upper slide block is arranged on the upper end of the upper vertical guide rail, and the upper slide block is fixedly connected with the middle upright post; The two-stage hydraulic cylinder is fixed on the middle upright post, an upper push rod of the two-stage hydraulic cylinder is fixedly connected with the upper upright post, and a lower push rod of the two-stage hydraulic cylinder is fixedly connected with the base. Preferably, the lower slider and the upper slider are respectively and fixedly connected with opposite side surfaces of the middle upright post. Preferably, the two-stage hydraulic cylinder comprises two parallel identical hydraulic cylinders, and push rods of the two hydraulic cylinders extend in opposite directions. Preferably, a push rod fixing plate is arranged at the top end of the upper upright post, and the upper push rod is fixedly connected with the push rod fixing plate. Preferably, the upright column lifting mechanism of the operating table further comprises an oil pipe lifting structure, wherein the oil pipe lifting structure comprises a drag chain, a drag chain cover and a drag chain guide column; the drag chain cover is arranged on the outer side face of the upper upright post, the drag chain is arranged in the drag chain cover, one end of the drag chain is fixed on the middle upright post, the drag chain is provided with a drag chain guide post above the position of the drag chain cover, the drag chain guide post plays a role in guiding the downward pressure of the drag chain when the upper upright post descends, and the drag chain guide post is not contacted with the drag chain when the upper upright post ascends. Preferably, the upright post lifting mechanism of the operating table further comprises an electric wire lifting structure, wherein the electric wire lifting structure comprises a stay wire plate and a winding roll, the stay wire plate is fixed on the outer surface of the upper upright post, the winding roll is fixed on the base, and the stay wire plate corresponds to the winding roll vertically. Preferably, the upper upright post is provided with a stay wire sensor, and the bottom of the lower upright post is provided with a