An electric hydraulic operating table

Abstract

The present invention relates to the technical field of operating beds, and more specifically, it relates to an electric hydraulic operating bed, comprising a base and a hydraulic adjustment component fixedly mounted on the top of the base, a bed frame consisting of a back support plate, a hip support plate, a leg support plate hinged to each other, and three mattresses fixedly mounted on the top of the back support plate, the hip support plate, and the leg support plate, respectively, and through holes are provided between the back support plate, the hip support plate, the leg support plate and the corresponding mattresses. The present invention continuously ventilates the patient's back through a primary ventilation component and a secondary ventilation component, thereby preventing the patient's body parts that have been in contact with the mattress for a long time from overheating and sweating due to lack of air circulation, and the occurrence of pressure sores or bedsores, etc., and the patient is lifted up by a top pump block to form a sufficient gap between the patient's body and the mattress; the present invention achieves comprehensive ventilation of the patient's body through a two-stage ventilation design, ensuring that air can circulate freely in all parts of the patient's body.

Description

Technical Field

[0001] The present invention relates to the technical field of operating tables, and more particularly to an electric hydraulic operating table. Background Art

[0002] The electro-hydraulic operating table is a highly automated and multifunctional medical device widely used in various surgical procedures. It combines electric and hydraulic systems to achieve multi-directional adjustment of the operating table to meet different surgical needs and adjust the patient's position.

[0003] During hip replacement, knee replacement and complex spinal surgery, patients need to maintain a specific posture for a long time, and the operation time is usually long. This can easily cause the patient's back skin to be under pressure for a long time, which can easily lead to skin damage, infection and other problems. Therefore, it is necessary to slightly adjust the patient's position regularly to ventilate the patient's back without affecting the surgical operation.

[0004] In the prior art, ventilation for the patient's back is generally achieved by using a ventilated mattress or adding a micro-gap ventilation system within the mattress. The ventilated mattress has built-in air channels or holes. For example, Chinese invention patent publication number CN214180989U discloses a highly comfortable operating table. This operating table achieves ventilation by placing fans in the front and rear bed panels. Air circulates within the mattress through a built-in fan or air pump system. The micro-gap ventilation system sets up multiple small air bags inside the mattress, and periodically inflates and deflates the air bags to produce tiny undulations on the mattress surface, creating tiny gaps between the mattress and the patient, allowing air to flow between the mattress and the patient's skin. However, the above ventilation method still has certain defects: 1. When using a ventilated mattress for ventilation, the patient's back is always in contact with the mattress, and the air circulation effect is poor, resulting in poor ventilation effect; 2. When using the micro-gap ventilation system, the air bags therein can usually only produce tiny undulations in a specific area and cannot support multiple parts at the same time, so they need to be alternately inflated and deflated to achieve whole-body ventilation. Although the effect of creating tiny gaps and generating air circulation is improved compared to using a ventilated mattress, the ventilation effect still needs to be improved. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an electric hydraulic operating bed, comprising a base and a hydraulic adjustment component fixedly installed on the top of the base, a bed body consisting of a back support plate, a hip support plate, a leg support plate hinged to each other and three mattresses fixedly installed on the top of the back support plate, the hip support plate and the leg support plate, respectively, a through hole is commonly provided between the back support plate, the hip support plate, the leg support plate and the corresponding mattresses, and the through hole is a vertical through structure.

[0006] A top-drawer switching unit and a self-switching overall ventilation unit are provided between the bed and the base. The top-drawer switching unit includes a top-drawer component and a driving component for driving the top-drawer component. There are three top-drawer components and three driving components, which correspond to each other one to one. The three top-drawer components are respectively arranged in three through holes. The self-switching overall ventilation unit includes a first-level ventilation component, a second-level ventilation component, two two-stage switching components and a control component for controlling the two-stage switching component. The first-level ventilation component and the second-level ventilation component are relatively arranged at the bottom of the bed front and back, and the two-stage switching component and the control component are located between the first-level ventilation component and the second-level ventilation component.

[0007] The top drawer assembly includes a top drawer block slidably installed in the through hole and a top drawer rod fixedly installed at the bottom of the top drawer block and fixedly connected to the driving assembly. The three top drawer blocks are used to support the patient's back, buttocks and legs respectively. The three top drawer blocks are simultaneously connected to the secondary ventilation assembly, and the primary ventilation assembly is connected to the bed body.

[0008] Furthermore, the driving assembly includes a cylinder fixedly mounted on the bottom of the bed and a driving plate fixedly mounted on the output end of the cylinder, and the top of the driving plate is fixedly connected to the bottom end of the corresponding ejection rod.

[0009] Furthermore, the self-switching overall ventilation unit also includes a fan fixedly mounted on the top of the base, an air inlet and an air outlet are provided on the left side of the fan, and a T-shaped diverter pipe is fixedly mounted on the left side of the fan outlet.

[0010] Furthermore, the first-level ventilation component includes an air outlet pipe 1 fixedly installed at the front end of the T-shaped diverter pipe and a connecting pipe 1 fixedly installed at the top of the air outlet pipe 1. A folding hose 1 is fixedly installed at both ends of the connecting pipe 1, and a nozzle 1 is fixedly installed at the opposite ends of the folding hose 1 and the top of the connecting pipe 1.

[0011] Furthermore, an air cavity is provided on the top of the back support plate, the hip support plate and the leg support plate, and a plurality of air outlet holes connected to the corresponding air cavity are provided on the top of the mattress. Three nozzles are fixedly connected to the back support plate, the hip support plate and the leg support plate from left to right and are connected to the corresponding air cavity.

[0012] Furthermore, the secondary ventilation component includes an air outlet pipe 2 fixedly installed at the rear end of the T-shaped diverter pipe and a connecting pipe 2 fixedly installed at the top end of the air outlet pipe 2. A folding hose 2 is fixedly installed at both left and right ends of the connecting pipe 2, and a nozzle 2 is fixedly installed at the opposite ends of the folding hose 2 and the top of the connecting pipe 2.

[0013] Furthermore, a second air cavity is provided inside the top extraction block, and a plurality of second air outlet holes fixedly connected to the second air cavity are provided on the top of the top extraction block. The three second nozzles are respectively fixedly connected to the corresponding top extraction block and connected to the corresponding second air cavity.

[0014] Furthermore, the two two-stage switching components are respectively fixedly installed between the corresponding ends of the air outlet pipe 2 and the T-shaped diverter pipe, and between the air outlet pipe 1 and the corresponding ends of the T-shaped diverter pipe, and the two two-stage switching components are centrally symmetrical with the center line between the front and rear ports of the T-shaped diverter pipe as the axis of symmetry.

[0015] Furthermore, the two-stage switching assembly includes a diverter body fixedly installed with a T-shaped diverter tube port, a circular hole and a cavity connected to the circular hole and the T-shaped diverter tube at the same time are opened inside the diverter body, a connecting sleeve is fixedly and connectedly installed on the diverter body, a sliding rod is slidably connected inside the connecting sleeve, the sliding rod slides through the connecting sleeve, and a sealing plug that matches the circular hole is fixedly installed at one end of the sliding rod near the circular hole, and the length of the connecting sleeve and the sliding rod on the front side is greater than the length of the connecting sleeve and the sliding rod on the rear side.

[0016] Furthermore, the control component includes a lifting rod and a lifting plate respectively fixedly installed on the front and rear sides of the driving plate located in the middle, the top end of the front sliding rod is fixedly installed with a lifting plate that cooperates with the lifting rod, and the bottom end of the rear sliding rod is fixedly installed with a lower pressure plate that cooperates with the lower pressure rod, and a return spring is jointly installed between the lower pressure plate and the connecting sleeve on the rear side, and the return spring is covered on the outside of the rear sliding rod.

[0017] The beneficial effects of the present invention are: 1. The present invention continuously ventilates the patient's back through the primary ventilation component and the secondary ventilation component, thereby preventing the parts of the patient's body that are in contact with the mattress for a long time from overheating and sweating due to lack of air circulation, and causing pressure sores or bedsores, etc., and the patient is lifted up by the top drawer block to form a sufficient gap between the patient's body and the mattress, and the patient's body is completely exposed to the air, thereby significantly improving air circulation. The top drawer block can also be pulled out from the through hole subsequently to allow air circulation to the parts of the patient that were previously in contact with the top drawer block.

[0018] 2. The present invention achieves comprehensive ventilation of the patient's body through a two-stage ventilation design, ensuring that air can flow freely in all parts of the patient's body, thereby greatly improving the ventilation effect and efficiency, and reducing the proportion of ventilation time in the total surgical time.

[0019] 3. The present invention utilizes the up and down movement of the driving plate to drive the movement of the top pumping block, and synchronously drives the control component to drive the self-switching component to automatically and continuously switch between the first-level ventilation component and the second-level ventilation component. The entire switching process does not require human intervention, thereby improving the system's degree of automation and integrated coordination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2It is a schematic diagram of the three-dimensional structure of the two-stage switching component, connecting pipe, folding hose and nozzle part of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the second air cavity, the second air outlet, the top extraction block and the fan part of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the lower pressure plate, return spring, T-shaped diverter pipe and circular hole part of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the air cavity 1, the air outlet 1, the bed, the flow divider and the air outlet pipe of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the T-shaped diverter pipe, diverter body, sealing plug, sliding rod and lifting plate of the present invention.

[0026] In the figure: 1. Base; 2. Hydraulic adjustment component; 3. Bed; 301. Back support plate; 302. Hip support plate; 303. Leg support plate; 304. Mattress; 4. Top drawer switching unit; 5. Self-switching overall ventilation unit; 6. Through hole; 401. Top drawer assembly; 402. Drive assembly; 4011. Top drawer rod; 4012. Top drawer block; 4021. Cylinder; 4022. Drive plate; 501. Primary ventilation assembly; 502. Secondary ventilation assembly; 503. Two-stage switching assembly; 504. Control assembly; 505. Fan; 506. T-shaped manifold; 507. Reset Spring; 5011, air outlet pipe one; 5012, connecting pipe one; 5013, folding hose one; 5014, nozzle one; 5015, air cavity one; 5016, air outlet hole one; 5021, air outlet pipe two; 5022, connecting pipe two; 5023, folding hose two; 5024, nozzle two; 5025, air cavity two; 5026, air outlet hole two; 5031, flow divider; 5032, connecting sleeve; 5033, sliding rod; 5034, sealing plug; 5035, round hole; 5041, lifting rod; 5042, lifting plate; 5043, pressing rod; 5044, pressing plate. DETAILED DESCRIPTION

[0027] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be varied without departing from the scope of protection of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0028] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 , an electric hydraulic operating bed, comprising a base 1 and a hydraulic adjustment component 2 fixedly mounted on the top of the base 1, the hydraulic adjustment component 2 realizes the lifting and tilting of the bed body 3 through the internal hydraulic system, and the top of the hydraulic adjustment component 2 is fixedly mounted with a bed body 3 consisting of a back support plate 301, a hip support plate 302, a leg support plate 303 which are hinged to each other, and three mattresses 304 fixedly mounted on the top of the back support plate 301, the hip support plate 302, and the leg support plate 303 respectively, a through hole 6 is commonly opened between the back support plate 301, the hip support plate 302, the leg support plate 303 and the corresponding mattress 304, and the through hole 6 is a vertical through structure, and a top drawer switching unit 4 and an automatic Switch the entire ventilation unit 5. The top-draw switching unit 4 includes a top-drawing component 401 and a driving component 402 for driving the top-drawing component 401. Three top-drawing components 401 and three driving components 402 are provided and correspond one to one. The three top-drawing components 401 are respectively arranged in three through holes 6. The self-switching entire ventilation unit 5 includes a first-level ventilation component 501, a second-level ventilation component 502, two two-stage switching components 503 and a control component 504 for controlling the two-stage switching component 503. The first-level ventilation component 501 and the second-level ventilation component 502 are arranged relatively front and back at the bottom of the bed 3. The two-stage switching component 503 and the control component 504 are located between the first-level ventilation component 501 and the second-level ventilation component 502.

[0029] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The top drawer assembly 401 includes a top drawer block 4012 slidably installed in the through hole 6 and a top drawer rod 4011 fixedly installed at the bottom of the top drawer block 4012 and fixedly connected to the drive assembly 402. The three top drawer blocks 4012 are used to support the patient's back, buttocks and legs respectively. The three top drawer blocks 4012 are also connected to the secondary ventilation assembly 502. The primary ventilation assembly 501 is connected to the bed 3. The top surface of the top drawer block 4012 is made of soft silicone material to reduce the discomfort of the patient when lying for a long time and when lifting. The self-switching overall ventilation unit 5 also includes a fan 505 fixedly installed on the top of the base 1. An air inlet and an air outlet are provided on the left side of the fan 505. A T-shaped diverter pipe 506 is fixedly installed on the left side of the air outlet of the fan 505.

[0030] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5The driving assembly 402 includes a cylinder 4021 fixedly mounted on the bottom of the bed 3 and a driving plate 4022 fixedly mounted on the output end of the cylinder 4021 , and the top of the driving plate 4022 is fixedly connected to the bottom end of the corresponding ejection rod 4011 .

[0031] In specific use, in the initial state, the top pull-out block 4012 is located inside the through hole 6 and the top surface is flush with the top surface of the mattress 304. In complex operations such as hip replacement and knee replacement, the patient's back is in contact with the mattress 304 for a long time. When the patient's back needs to be ventilated, the cylinder 4021 is started, and the output end of the cylinder 4021 contracts, driving the driving plate 4022 to move upward, thereby pushing the top pull-out block 4012 upward through the top pull-out rod 4011, so that the three top pull-out blocks 4012 supporting the patient's back, buttocks and legs are synchronously lifted upward to lift the patient a short distance away from the mattress 304. At the same time, the driving plate 4022 corresponding to the buttocks is moved upward. During the upward movement, the control component 504 will be driven to drive the two-stage switching component 503 to move, so that the first-level ventilation component 501 is unobstructed and the fan 505 is started. The external air is sent into the first-level ventilation component 501 through the air inlet and the air outlet and ejected, so as to continuously ventilate the patient's body, thereby preventing the parts of the patient's body that have been in contact with the mattress 304 for a long time from overheating and sweating due to lack of air circulation, causing skin problems such as pressure sores or bedsores, and the patient is lifted up by the top pull-out block 4012 to form a certain gap between the patient's body and the mattress 304, thereby significantly improving air circulation, reducing local overheating and sweat accumulation, and thus achieving the effect of first-level ventilation.

[0032] After the first-level ventilation is completed, the output end of the start-up control cylinder 4021 pushes the driving plate 4022 to move downward, thereby driving the top pull-out block 4012 to move downward through the top pull-out rod 4011 so that the patient can re-contact the mattress 304. At the same time, the first-level ventilation component 501 is closed. Then, as the output end of the cylinder 4021 continues to push, the top pull-out block 4012 will be pulled downward from the through hole 6. At this time, the part of the patient that was previously in contact with the top pull-out block 4012 will be aligned with the through hole 6, and the top pull-out block 4012 is pulled out of the through hole 6, so that the inside of the through hole 6 can be connected with the outside air flow. At the same time, the output end of the cylinder 4021 pushes the driving plate 4022 to move downward and also drives the control component 504 to drive the two-stage switching component 503 to control the secondary ventilation component 502 to be unobstructed. At this time, the air inlet will send the external air into the secondary ventilation component 502 through the air outlet and spray it out, ventilating the patient's body at the position aligned with the through hole 6, achieving the effect of secondary ventilation; and then the two-stage ventilation design realizes the comprehensive ventilation of the patient's body, ensuring that the air can flow freely in various parts of the patient's body, greatly improving the ventilation effect and ventilation efficiency.

[0033] After the two-stage ventilation is completed, the output end of the cylinder 4021 contracts and drives the driving plate 4022 to move upward, thereby pushing the top pull-out block 4012 upward through the top pull-out rod 4011 and returning to the through hole 6 to be flush with the mattress 304 again. At the same time, it also drives the control component 504 to drive the two-stage switching component 503 to control the secondary ventilation component 502 to close, and finally turns off the fan 505.

[0034] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The first-level ventilation component 501 includes an air outlet pipe 5011 fixedly installed at the front end of the T-shaped diverter pipe 506 and a connecting pipe 5012 fixedly installed at the top of the air outlet pipe 5011, and a folding hose 5013 is fixedly installed on both ends of the connecting pipe 5012, and a nozzle 5014 is fixedly installed on the opposite ends of the folding hose 5013 and the top of the connecting pipe 5012. The back support plate 301, the hip support plate 302 and the leg support plate 303 are all provided with an air cavity 5015 on the top, and a plurality of air outlet holes 5016 connected to the corresponding air cavity 5015 are provided on the top of the mattress 304. The three nozzles 5014 are fixedly connected to the back support plate 301, the hip support plate 302 and the leg support plate 303 from left to right and are connected to the corresponding air cavity 5015.

[0035] See Figure 2 、 Figure 3 and Figure 4 The secondary ventilation component 502 includes an air outlet pipe 5021 fixedly installed at the rear end of the T-shaped diverter pipe 506 and a connecting pipe 5022 fixedly installed at the top of the air outlet pipe 5021. The left and right ends of the connecting pipe 5022 are fixedly installed with a folding hose 5023, and the opposite ends of the folding hose 5023 and the top of the connecting pipe 5022 are fixedly installed with a nozzle 5024. The top extraction block 4012 is provided with an air cavity 5025, and the top of the top extraction block 4012 is provided with a plurality of air outlet holes 5026 fixedly connected to the air cavity 5025. The three nozzles 5024 are respectively fixedly connected to the corresponding top extraction blocks 4012 and connected to the corresponding air cavity 5025.

[0036] See Figure 2 、 Figure 3 、 Figure 4 and Figure 6The two two-stage switching components 503 are respectively fixedly installed between the corresponding ends of the air outlet pipe 2 5021 and the T-shaped diverter pipe 506, and between the air outlet pipe 1 5011 and the corresponding ends of the T-shaped diverter pipe 506, and the two two-stage switching components 503 are centrally symmetrical with the center line between the front and rear ports of the T-shaped diverter pipe 506 as the symmetry axis. The two-stage switching component 503 includes a diverter 5031 fixedly installed at the port of the T-shaped diverter pipe 506, and a circular hole 5035 is opened inside the diverter 5031 and a circular hole 5035 is opened at the same time. The hole 5035 and the T-shaped diverter tube 506 are connected to the cavity, and a connecting sleeve 5032 is fixed and connected to the diverter body 5031. A sliding rod 5033 is slidably connected inside the connecting sleeve 5032. The sliding rod 5033 slides through the connecting sleeve 5032, and a sealing plug 5034 that matches the circular hole 5035 is fixedly installed at one end of the sliding rod 5033 near the circular hole 5035. The length of the connecting sleeve 5032 and the sliding rod 5033 on the front side is greater than the length of the connecting sleeve 5032 and the sliding rod 5033 on the rear side.

[0037] See Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The control component 504 includes a lifting rod 5041 and a lifting plate 5042 respectively fixedly mounted on the front and rear sides of the driving plate 4022 located in the middle. The top of the front sliding rod 5033 is fixedly mounted with a lifting plate 5042 that cooperates with the lifting rod 5041, and the bottom of the rear sliding rod 5033 is fixedly mounted with a lower pressing plate 5044 that cooperates with the lower pressing rod 5043. A return spring 507 is jointly installed between the lower pressing plate 5044 and the rear connecting sleeve 5032, and the return spring 507 is covered on the outside of the rear sliding rod 5033.

[0038] When in use, as the top extraction block 4012 lifts the patient, the lifting rod 5041 gradually approaches and finally lifts the lifting plate 5042, so that the front sliding rod 5033 drives the front sealing plug 5034 to move upward and be pulled out from the front circular hole 5035, thereby making the cavity in the front diverter 5031 and the circular hole 5035 connected to the air outlet pipe 1 5011 and the T-shaped diverter pipe 506. At this time, the fan 505 is started, and the external air is sent into the air outlet pipe 1 5011 through the air inlet through the air outlet, and then the air flow is distributed to the folding hose 1 5013 and the three nozzles 1 at the left and right ends through the connecting pipe 1 5012. 5014, and then simultaneously supply air to three air cavities 5015. Finally, the air flow is evenly ejected from the air cavity 5015 through the air outlet holes 5016 densely distributed on the top of the mattress 304. The ejected air flow can be evenly distributed on the patient's body, providing a continuous ventilation effect, preventing the parts of the patient's body that have been in contact with the mattress 304 for a long time from overheating and sweating due to lack of air circulation, causing pressure sores or bedsores. In addition, the patient is lifted up by the top pull-out block 4012, so that a sufficient gap is formed between the patient's body and the mattress 304, thereby significantly improving air circulation, reducing local overheating and sweat accumulation, and thus achieving the effect of first-level ventilation.

[0039] As the driving plate 4022 drives the top extraction block 4012 downward, the patient contacts the mattress 304 again. Meanwhile, the driving plate 4022 drives the lifting rod 5041 downward gradually during the downward movement. The lifting plate 5042 also moves downward under the action of gravity and finally drives the front sealing plug 5034 to be reinserted into the front circular hole 5035 through the front sliding rod 5033, thereby closing the front diverter 5031 and cutting off the connection between the air outlet pipe 1 5011 and the T-shaped diverter pipe 506. The output end of the cylinder 4021 continues to push and the top extraction block 4012 is pulled downward from the through hole 6. At this time, the part of the patient that was previously in contact with the top extraction block 4012 is aligned with the through hole 6, and the top extraction block 4012 is pulled out of the through hole 6 to allow the inside of the through hole 6 to circulate with the outside air. At the same time, the output end of the cylinder 4021 pushes the driving plate 4022 to move downward and also drives the lower pressure rod 5043 to move downward. When the top extraction block 4012 is pulled out of the through hole 6, the driving plate 4022 continues to move downward. The lower pressure rod 5043 will continue to move downward and squeeze the lower pressure plate 5044. The lower pressure plate 5044 moves downward and stretches the return spring 507, thereby driving the rear sealing plug 5034 to move downward through the rear sliding rod 5033 and pull it out from the round hole 5035 of the rear side diverter 5031, thereby connecting the rear side diverter 5031 to the second air outlet pipe 5021 and the T-shaped diverter pipe 506. Then the air outlet will send the external air into the second air outlet pipe 5021, and then Then it passes through the connecting tube 2 5022, the folding hose 2 5023 and the three nozzles 2 5024, and supplies air to the three air chambers 2 5025 at the same time. Finally, the air flow is evenly ejected from the air chamber 2 5025 through the air outlet holes 2 5026 densely distributed on the top of the top pumping block 4012. The ejected air flow enters the through hole 6 to ventilate the part of the patient's body aligned with the through hole 6, and then the two-stage ventilation design realizes the comprehensive ventilation of the patient's body, ensuring that the air can flow freely in various parts of the patient's body.

[0040] When the top pull-out rod 4011 pushes the top pull-out block 4012 to move upward and return to the through hole 6 to be flush with the mattress 304, the corresponding driving plate 4022 will drive the lower pressure rod 5043 to move upward. As the lower pressure rod 5043 moves upward, the tensile force on the reset spring 507 gradually decreases, thereby driving the lower pressure plate 5044 to reset, so that the rear sliding rod 5033 drives the rear sealing plug 5034 to move upward and re-insert it into the rear circular hole 5035, thereby closing the rear diverter 5031 and cutting off the connection between the air outlet pipe 2 5021 and the T-shaped diverter pipe 506.

[0041] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An electric hydraulic operating table, characterized in that: include: A base and a hydraulic adjustment component fixedly mounted on the top of the base; A bed frame is fixedly installed on the top of the hydraulic adjustment component, which is composed of a back support plate, a hip support plate, and a leg support plate that are hinged to each other, and three mattresses are fixedly installed on the top of the back support plate, the hip support plate, and the leg support plate, respectively. Through holes are commonly opened between the back support plate, the hip support plate, the leg support plate and the corresponding mattresses, and the through holes are in an up-and-down through structure; A top-draw switching unit and a self-switching overall ventilation unit are provided between the bed and the base. The top-draw switching unit includes a top-draw assembly and a driving assembly for driving the top-draw assembly. There are three top-draw assemblies and three driving assemblies, each corresponding to the other. The three top-draw assemblies are respectively provided in three through holes. The self-switching overall ventilation unit includes a primary ventilation component, a secondary ventilation component, two two-stage switching components and a control component for controlling the two-stage switching components. The primary ventilation component and the secondary ventilation component are arranged at the bottom of the bed relative to each other in front and back, and the two-stage switching component and the control component are located between the primary ventilation component and the secondary ventilation component. The top drawer assembly includes a top drawer block slidably mounted in the through hole and a top drawer rod fixedly mounted at the bottom of the top drawer block and fixedly connected to the drive assembly. The three top drawer blocks are respectively used to support the patient's back, buttocks and legs. The three top drawer blocks are also connected to the secondary ventilation assembly, and the primary ventilation assembly is connected to the bed body. The driving assembly includes a cylinder fixedly mounted on the bottom of the bed and a driving plate fixedly mounted on the output end of the cylinder, the top of the driving plate is fixedly connected to the bottom end of the corresponding ejector rod; The self-switching overall ventilation unit also includes a fan fixedly mounted on the top of the base, with an air inlet and an air outlet provided on the left side of the fan, and a T-shaped diverter pipe fixedly mounted on the left side of the fan outlet; The secondary ventilation assembly includes an air outlet pipe 2 fixedly mounted at the rear end of the T-shaped manifold and a connecting pipe 2 fixedly mounted at the top end of the air outlet pipe 2, with foldable hoses 2 fixedly mounted at both left and right ends of the connecting pipe 2, and nozzles 2 fixedly mounted at the opposite ends of the foldable hose 2 and the top of the connecting pipe 2; The two-stage switching assembly includes a splitter body fixedly mounted with a T-shaped splitter pipe port, a circular hole and a cavity connected to the circular hole and the T-shaped splitter pipe are opened inside the splitter body, a connecting sleeve is fixedly mounted on the splitter body and connected to the circular hole, a sliding rod is slidably connected inside the connecting sleeve, the sliding rod slides through the connecting sleeve, and a sealing plug that matches the circular hole is fixedly mounted on one end of the sliding rod close to the circular hole, and the length of the connecting sleeve and the sliding rod on the front side is greater than the length of the connecting sleeve and the sliding rod on the rear side; The control component includes a lifting rod and a pressing rod fixedly installed on the front and rear sides of the driving plate located in the middle, a lifting plate matched with the lifting rod is fixedly installed on the top of the front sliding rod, and a pressing plate matched with the pressing rod is fixedly installed on the bottom end of the rear sliding rod. A return spring is installed between the pressing plate and the connecting sleeve on the rear side, and the return spring is covered on the outside of the rear sliding rod.

2. The electro-hydraulic operating table according to claim 1, characterized in that: The first-level ventilation component includes an air outlet pipe fixedly installed at the front end of the T-shaped diverter pipe and a connecting pipe fixedly installed at the top of the air outlet pipe. A folding hose is fixedly installed at both ends of the connecting pipe, and a nozzle is fixedly installed at the opposite ends of the folding hose and the top of the connecting pipe.

3. The electro-hydraulic operating table according to claim 2, characterized in that: The tops of the back support plate, hip support plate and leg support plate are each provided with an air cavity, and the top of the mattress is provided with several air outlet holes connected to the corresponding air cavity. Three nozzles are fixedly connected to the back support plate, hip support plate and leg support plate from left to right and are connected to the corresponding air cavity.

4. The electro-hydraulic operating table according to claim 1, characterized in that: The top extraction block is provided with two air cavities inside, and the top of the top extraction block is provided with a plurality of two air outlet holes fixedly connected to the two air cavities. The three nozzles are respectively fixedly connected to the corresponding top extraction blocks and connected to the corresponding two air cavities.

5. The electro-hydraulic operating table according to claim 1, characterized in that: The two two-stage switching components are respectively fixedly installed between the corresponding ends of the air outlet pipe 2 and the T-shaped diverter pipe, and between the air outlet pipe 1 and the corresponding ends of the T-shaped diverter pipe, and the two two-stage switching components are centrally symmetrical with the center line between the front and rear ports of the T-shaped diverter pipe as the axis of symmetry.

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