A hematology nursing bed structure

Abstract

The application provides a hematology nursing bed structure, which comprises a horizontal bed body and a deviation-preventing stabilizing mechanism, the deviation-preventing stabilizing mechanism comprises fixing cylinders fixed on both sides of the end of the horizontal bed body, a fixing frame is slidably connected in the fixing cylinder, a lead screw is rotatably connected in the fixing cylinder, the lead screw is threadedly connected to the fixing frame, a suction cup and a magnetic frame are fixed on the surface of the fixing frame, a movable block is hingedly connected in the magnetic frame, and an anti-skid seat is slidably connected in the movable block. The lead screw drives the fixing frame to move downward, so that the suction cup is vacuum-sucked to the ground, and the anti-skid seat elastically abuts against the ground to realize locking. A telescopic supporting arm is slidably connected in a side wing stabilizing plate and is drivingly connected to the fixing frame through a linkage pull rope, and the telescopic supporting arm is driven to extend outward when the fixing frame moves downward. The application further comprises a pressure sensing module, a controller, an audible and visual alarm and an electronic level gauge, so that locking state monitoring and automatic leveling can be realized. The application effectively prevents the bed body from deviating, guarantees the safety of hematology patients, and improves the stability and intelligent level of the nursing bed.

Description

Technical Field

[0001] This invention relates to the medical field, specifically to a structure for a hematology nursing bed. Background Technology

[0002] Hematology ward beds are basic nursing equipment used in hospital hematology wards to treat patients with blood diseases such as leukemia and aplastic anemia. Hematology patients often experience anemia, thrombocytopenia, and fragile bones, making them extremely weak and sensitive to external vibrations and displacement. Current hematology ward beds are typically equipped with swivel casters at the bottom to facilitate movement by nursing staff. When patients require prolonged bed rest or bedside examinations, nursing staff will lock the casters to secure the bed.

[0003] However, in practical use, relying solely on locking the omnidirectional casters is clearly insufficient. On the one hand, when patients turn over, sit up, or are being cared for by medical staff, the lateral thrust or vibration generated by their body movements can easily cause slight displacement or slippage of the locked casters. This displacement can exacerbate the patient's anxiety and may even lead to falls or injuries due to bed swaying. On the other hand, hematology patients have low bone density and are extremely sensitive to impacts; accidental bed slippage could directly threaten their lives. Therefore, there is an urgent need for a nursing bed structure that can firmly adhere the bed to the ground and prevent accidental bed displacement. Summary of the Invention

[0004] The problem to be solved by the present invention is to provide a hematology nursing bed structure that addresses the above-mentioned deficiencies in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hematology nursing bed structure, characterized in that it includes: a horizontal bed body; and an anti-deviation stabilization mechanism, wherein the anti-deviation stabilization mechanism includes a fixed cylinder fixedly connected to both ends of the horizontal bed body, a fixed frame slidably connected to the inner wall of the fixed cylinder, a lead screw rotatably connected to the inner wall of the fixed cylinder, the surface of the lead screw being threadedly connected to the inner wall of the fixed frame, two suction cups and a magnetic frame fixedly connected to the surface of the fixed frame, a movable block hinged to the inner wall of the magnetic frame, and an anti-slip seat slidably connected to the inner wall of the movable block.

[0007] Furthermore, the inner wall of the fixing frame has two through holes, and a through pipe is fixedly connected to the inner wall of the fixing frame; a one-way air outlet pipe and an air inlet pipe are fixedly connected to the inner wall of the through pipe, and the through holes are connected to the through pipe; a filter screen is fixedly connected to the inner wall of the through holes, and a rubber plug is threaded onto the surface of the air inlet pipe.

[0008] Furthermore, a spring is fixedly connected to the bottom of the movable block, and the bottom end of the spring is fixedly connected to the end of the anti-slip seat; the movable block is a galvanized iron component, and the surface of the magnetic frame is magnetically attracted to the surface of the movable block; the surface of the fixed frame is slidably connected to the lower end of the inner wall of the horizontal bed.

[0009] Furthermore, the inner wall of the fixed cylinder is provided with two limiting grooves, and the upper surface of the fixed frame is slidably connected to the inner wall of the limiting groove.

[0010] Furthermore, an annular elastic sealing gasket is fixedly connected to the surface of the fixing frame outside the through hole. An annular clearance groove is provided at the bottom end of the annular elastic sealing gasket. When the suction cup is adsorbed on the ground, the bottom end of the annular elastic sealing gasket abuts against the ground and deforms to form an auxiliary sealing ring cavity on the outer periphery of the suction cup. The interior of the through hole is connected to the auxiliary sealing ring cavity through an auxiliary air passage.

[0011] Furthermore, a friction enhancement layer is fixedly connected to the bottom end of the anti-slip base. The bottom surface of the friction enhancement layer is provided with a plurality of arc-shaped protrusions arranged in concentric circles. The cross-section of the arc-shaped protrusions is trapezoidal, and the bottom surface of the arc-shaped protrusions is provided with micro-pore grooves. The micro-pore grooves are used to squeeze out the internal air to form negative pressure adsorption when the anti-slip base is pressed.

[0012] Furthermore, side wing stabilizing plates are fixedly connected to both sides of the horizontal bed frame. Telescopic support arms are slidably connected inside the side wing stabilizing plates. Ground abutment blocks are fixedly connected to the extended ends of the telescopic support arms. Universal adjustment ball joints are provided at the bottom of the ground abutment blocks. Auxiliary suction cups are fixedly connected to the bottom of the universal adjustment ball joints. The telescopic support arms are connected to the fixed frame through a linkage pull rope. When the fixed frame moves downward, the linkage pull rope drives the telescopic support arms to extend outward.

[0013] Furthermore, the middle part of the linkage pull rope is threaded through a fixed pulley group fixed to the bottom of the horizontal bed frame. The fixed pulley group includes a first fixed pulley and a second fixed pulley. One end of the linkage pull rope is fixedly connected to the side wall of the fixed frame, and the other end passes around the first fixed pulley and the second fixed pulley and is fixedly connected to the end of the telescopic support arm. A reset spring is sleeved on the outside of the telescopic support arm. The reset spring is used to push the telescopic support arm to retract when the fixed frame is reset upward.

[0014] Furthermore, a pressure sensing module is fixedly connected to the top of the inner wall of the fixed cylinder. The signal output terminal of the pressure sensing module is electrically connected to a controller, and the output terminal of the controller is electrically connected to an audible and visual alarm installed on the side wall of the horizontal bed. When the fixed frame moves upward and presses the pressure sensing module, the controller receives the pressure signal and determines that the fixed frame is in the retracted position, and controls the audible and visual alarm to emit a green warning light. When the fixed frame moves downward and disengages from the pressure sensing module for a preset time, the controller controls the audible and visual alarm to emit a red warning light to indicate that the bed is in the locked state.

[0015] Furthermore, the controller integrates a wireless communication module, which is used to establish a communication connection with the nurse station terminal or mobile nursing terminal. When the controller detects that the fixation frame is in an abnormal suspended state or the vacuum degree of the suction cup is lower than a preset threshold, the controller sends a bed displacement alarm signal to the nurse station terminal through the wireless communication module. An electronic level is also embedded on the surface of the fixation frame. The signal output terminal of the electronic level is connected to the controller. The controller controls the lead screw drive motor to perform automatic fine adjustment based on the tilt angle data of the electronic level until the horizontal bed is restored to a level state.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By cooperating with the lead screw, fixed cylinder, and fixed frame, the suction cup and anti-slip seat are made to contact the ground, thereby increasing the contact area and frictional resistance between the bed and the ground. This achieves stable locking of the bed and avoids secondary injuries caused by bed displacement during hematology patients' treatment or care, ensuring the patient's safe recuperation. The filter screen prevents impurities from the ground from entering the through holes and pipes, preventing blockages. The through holes, pipes, and one-way air outlet work together to achieve vacuum adsorption of the suction cup to the ground, ensuring stable locking of the bed. This improves the stability of the nursing bed during emergency rescue or daily care, providing a reliable working platform for medical staff.

[0018] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the anti-deviation mechanism of the present invention;

[0021] Figure 3This is a cross-sectional view of the anti-deviation mechanism of the present invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle.

[0024] Figure 6 This is a schematic diagram of the structure of other components on the horizontal bed of the present invention. Detailed Implementation

[0025] To make the technical means, creative features, objectives, and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0026] This invention proposes an embodiment 1: the basic structure and operation of an anti-deviation stabilization mechanism.

[0027] like Figure 1 As shown, a hematology nursing bed structure includes a horizontal bed frame 100 and an anti-deviation stabilizing mechanism 200 disposed at the ends of the horizontal bed frame 100. The horizontal bed frame 100 is a conventional medical nursing bed, with universal brake wheels installed at the four corners of its bottom for easy daily movement. The anti-deviation stabilizing mechanism 200 is disposed on both sides of the head and / or foot ends of the horizontal bed frame 100, preferably at the foot end, to facilitate operation near the patient's feet.

[0028] The anti-deviation stabilization mechanism 200 includes a fixed cylinder 201, a fixed frame 202, and a lead screw 214. The fixed cylinder 201 is a cylindrical structure with a closed top and an open bottom. The top of the fixed cylinder 201 is welded and fixed to the lower surface of both sides of the end of the horizontal bed 100. Two symmetrically arranged limiting grooves 215 are formed along the axial direction on the inner wall of the fixed cylinder 201. The cross-section of the limiting grooves 215 is rectangular. The fixed frame 202 is a T-shaped columnar structure. The two ends of its upper horizontal arm slide within the limiting grooves 215, restricting the fixed frame 202 to slide axially within the fixed cylinder 201 and preventing rotation. The lead screw 214 is vertically positioned at the center of the fixed cylinder 201. The top of the lead screw 214 is rotatably connected to the top surface of the inner wall of the fixed cylinder 201 via a ball bearing. The bottom of the lead screw 214 extends to the outside of the fixed cylinder 201 and is fixedly connected to a handwheel or a hexagonal screwdriver. The fixing frame 202 has a threaded through hole at its center, and the lead screw 214 passes through the threaded through hole and is threadedly engaged with the fixing frame 202. When the caregiver turns the handwheel, the lead screw 214 rotates, causing the fixing frame 202 to move up and down along the limiting groove 215.

[0029] Two suction cups 203 are fixedly connected to the bottom surface of the mounting bracket 202, and the two suction cups 203 are symmetrically arranged on both sides of the bottom of the mounting bracket 202. The suction cups 203 are conventional rubber vacuum suction cups with their adsorption surfaces facing downwards. A magnetic frame 204 is also fixedly connected to the bottom of the mounting bracket 202. The magnetic frame 204 is a U-shaped metal frame with its opening facing downwards. The magnetic frame 204 is made of permanent magnets or has permanent magnets embedded in its inner wall. A movable block 205 is hinged to the inner wall of the magnetic frame 204 via a hinge axis. The movable block 205 can swing around the hinge axis in a vertical plane. The movable block 205 has a rectangular block structure with a vertical sliding groove inside. An anti-slip seat 206 is slidably connected in the groove. The anti-slip seat 206 is a T-shaped column with its top end slidingly limited inside the movable block 205 and its bottom end extending out of the bottom surface of the movable block 205. A spring 213 is installed between the bottom of the movable block 205 and the top of the anti-slip seat 206. One end of the spring 213 is fixedly connected to the bottom of the movable block 205, and the other end is fixedly connected to the top end face of the anti-slip seat 206. The spring 213 always applies a downward elastic force to the anti-slip seat 206. The movable block 205 is made of galvanized iron. When the movable block 205 swings to the vertical position, its surface is magnetically attracted to the inner wall surface of the magnetic frame 204, keeping the movable block 205 vertically positioned.

[0030] In its initial state, the fixing frame 202 is housed within the fixing cylinder 201, with the suction cup 203 and anti-slip seat 206 both above the bottom surface of the universal brake wheel, allowing the horizontal bed 100 to move freely. When locking the bed is required, the caregiver turns the handwheel forward, and the screw 214 drives the fixing frame 202 downward. The fixing frame 202 extends from the bottom of the fixing cylinder 201, and the suction cup 203 first contacts the ground and is compressed and deformed as the fixing frame 202 continues to move downward, expelling internal air and then vacuum-adhering to the ground. Simultaneously, the anti-slip seat 206 moves downward with the fixing frame 202, its bottom end contacting the ground. Because the anti-slip seat 206 is slidably connected within the movable block 205 and pushed downward by the spring 213, the anti-slip seat 206 can adapt to different ground flatness and always maintain close contact with the ground, providing auxiliary frictional resistance. When unlocking is required, the handwheel is turned in the opposite direction, the fixing frame 202 retracts upward, and the suction cup 203 and anti-slip seat 206 detach from the ground.

[0031] This embodiment is a further improvement upon Embodiment 1. The mounting bracket 202 has two through holes 208 inside, each corresponding to a cavity inside one of the two suction cups 203. A connecting pipe 207 is also fixedly connected inside the mounting bracket 202, horizontally arranged within it, with both ends connected to the two through holes 208. A one-way exhaust pipe 209 is fixedly connected to the inner wall of the middle section of the connecting pipe 207. The top end of the one-way exhaust pipe 209 extends beyond the top surface of the mounting bracket 202 and connects to the external atmosphere, allowing gas to flow out unidirectionally from inside the connecting pipe 207 to the outside. An intake pipe 210 is also fixedly connected to the inner wall of the middle section of the connecting pipe 207. The bottom end of the intake pipe 210 extends beyond the bottom surface of the mounting bracket 202, and a rubber stopper 211 is threadedly connected to the inlet of the intake pipe 210.

[0032] A filter screen 212 is fixedly connected to the inner wall of the through hole 208. The filter screen 212 is located at the port where the through hole 208 and the internal cavity of the suction cup 203 are connected. It is used to prevent dust, hair and other impurities on the ground from entering the through hole 208 and the through pipe 207 to avoid blockage.

[0033] When the mounting bracket 202 moves downwards, causing the suction cup 203 to touch the ground, the suction cup 203 is compressed and deformed. The gas inside is then discharged to the outside atmosphere through the through hole 208, the through pipe 207, and the one-way vent pipe 209. Due to the one-way cutoff effect of the one-way vent pipe 209, outside air cannot flow back into the suction cup 203, maintaining a negative pressure inside the suction cup 203, thus firmly adhering to the ground. When it is necessary to release the adhesion, the caregiver loosens the rubber stopper 211, allowing outside air to enter the suction cup 203 through the air inlet pipe 210, the through pipe 207, and the through hole 208. The negative pressure inside the suction cup 203 disappears, and the suction cup 203 can be easily separated from the ground.

[0034] This embodiment further describes the cooperation relationship between the movable block 205 and the anti-slip seat 206. The movable block 205 is a cuboid structure, and its top end is hinged between the inner walls of the two sides of the magnetic frame 204 via a hinge shaft. The movable block 205 can swing freely around the hinge shaft in a plane perpendicular to the moving direction of the fixed frame 202. A guide hole penetrating the upper and lower end faces is provided at the center of the movable block 205, and the inner wall of the guide hole is a smooth surface. The anti-slip seat 206 is a stepped shaft structure, with a sliding section at the top that slides within the guide hole; and a limiting section at the bottom, the diameter of which is larger than the inner diameter of the guide hole to prevent the anti-slip seat 206 from coming off the movable block 205. A spring 213 is sleeved on the outside of the sliding section of the anti-slip seat 206, with the top end of the spring 213 abutting against the bottom surface of the movable block 205 and the bottom end of the spring 213 abutting against the top surface of the limiting section of the anti-slip seat 206.

[0035] The movable block 205 is made of galvanized iron, and the inner surface of the magnetic frame 204 is a permanent magnet working surface. When the movable block 205 is in a natural vertical state, the magnetic attraction between the magnetic frame 204 and the movable block 205 is sufficient to overcome the weight of the movable block 205 and the anti-slip seat 206, keeping the movable block 205 vertically positioned. When the anti-slip seat 206 contacts the ground and the ground is tilted or uneven, the bottom of the anti-slip seat 206 first contacts the highest point of the ground. As the fixed frame 202 continues to move downward, the movable block 205 swings adaptively around the hinge axis according to the ground slope. At the same time, the anti-slip seat 206 slides in the guide hole and is continuously pressed downward by the spring 213, ensuring that the bottom of the anti-slip seat 206 always keeps in contact with the ground. Through the adaptive swing of the movable block 205 and the elastic extension and contraction of the anti-slip seat 206, stable support on uneven ground is achieved.

[0036] The top two surfaces of the fixed frame 202 are slidably connected to the lower end of the inner wall of the horizontal bed 100. Specifically, the bottom inner wall of the horizontal bed 100 is provided with a guide groove, and the two outer walls of the fixed frame 202 are provided with guide sliders. The guide sliders slide in the guide groove, further ensuring the linearity of the fixed frame 202 when it moves up and down.

[0037] The inner wall of the fixed cylinder 201 has two symmetrically arranged limiting grooves 215, which extend axially along the fixed cylinder 201. Rectangular limiting protrusions are integrally formed on both sides of the upper surface of the fixed frame 202, and these protrusions are slidably connected to the inner wall of the limiting grooves 215. Limiting blocks are respectively provided at the top and bottom of the limiting grooves 215. When the fixed frame 202 moves upward to the top of the limiting groove 215, the limiting protrusion abuts against the top limiting block, and the fixed frame 202 is retracted into place. When the fixed frame 202 moves downward to the bottom of the limiting groove 215, the limiting protrusion abuts against the bottom limiting block, and the suction cup 203 and the anti-slip seat 206 are in their maximum extended state. The design of the limiting grooves 215 ensures both the directional sliding of the fixed frame 202 and limits its travel range, preventing the lead screw 214 from excessively rotating, which could cause the fixed frame 202 to detach or collide with the bottom of the fixed cylinder 201.

[0038] Based on Embodiment 2, an annular elastic sealing gasket 300 is fixedly connected to the surface of the fixing bracket 202 outside the through hole 208. The annular elastic sealing gasket 300 is made of silicone rubber or polyurethane elastomer, and its overall shape is circular, arranged around the outer periphery of the suction cup 203. An annular relief groove 301 is formed at the bottom end of the annular elastic sealing gasket 300, and the annular relief groove 301 extends circumferentially along the bottom surface of the annular elastic sealing gasket 300, so that the bottom end of the annular elastic sealing gasket 300 forms two sealing lips, one inner and one outer.

[0039] As the mounting bracket 202 moves downwards and the suction cup 203 adheres to the ground, the bottom end of the annular elastic sealing gasket 300 moves downwards and first contacts the ground. As the mounting bracket 202 continues to move downwards, the annular elastic sealing gasket 300 is compressed and undergoes elastic deformation, the annular clearance groove 301 is squeezed and closed, and the inner and outer sealing lips are tightly fitted to the ground, forming an auxiliary sealing ring cavity 302 on the outer periphery of the suction cup 203. The auxiliary sealing ring cavity 302 is a closed annular space. An auxiliary air passage 303 is also provided inside the mounting bracket 202. One end of the auxiliary air passage 303 is connected to the through hole 208, and the other end opens on the bottom surface of the mounting bracket 202 and is connected to the auxiliary sealing ring cavity 302.

[0040] During the adsorption process of suction cup 203, when the gas inside suction cup 203 is discharged through through hole 208, the negative pressure in through hole 208 is transmitted to auxiliary sealing ring cavity 302 through auxiliary air channel 303, creating a negative pressure state within auxiliary sealing ring cavity 302 as well. The negative pressure effect of auxiliary sealing ring cavity 302 enhances the adsorption force between the outer area of ​​suction cup 203 and the ground, and simultaneously forms a second sealing barrier between suction cup 203 and the external environment, preventing external air from seeping in from the edge of suction cup 203, significantly improving the vacuum retention capability and long-term adsorption stability of suction cup 203.

[0041] Based on Embodiment 3, a friction enhancement layer 400 is fixedly connected to the bottom end of the anti-slip base 206. The friction enhancement layer 400 is made of wear-resistant rubber material and is fixed to the bottom surface of the anti-slip base 206 by vulcanization or bonding. The bottom surface of the friction enhancement layer 400 is provided with a plurality of concentric arc-shaped protrusions 401, and annular grooves are formed between adjacent arc-shaped protrusions 401. The cross-section of the arc-shaped protrusions 401 is trapezoidal, that is, its top width is smaller than its bottom width. This structure allows the arc-shaped protrusions 401 to expand to both sides when under pressure, increasing the contact area with the ground.

[0042] The bottom surface of the arc-shaped convex rib 401 has micro-perforated grooves 402. The micro-perforated grooves 402 are small grooves extending along the length of the arc-shaped convex rib 401, with a width of 0.5~1.5mm and a depth of 0.3~0.8mm. When the anti-slip seat 206 is pressed against the ground under the action of the spring 213, the arc-shaped convex rib 401 is compressed and deformed, and the air in the micro-perforated grooves 402 is squeezed out, creating a local negative pressure state within the micro-perforated grooves 402. This generates an additional negative pressure adsorption effect, further enhancing the friction between the anti-slip seat 206 and the ground. The concentric arrangement of the arc-shaped convex ribs 401 ensures that regardless of the direction of the horizontal thrust applied to the anti-slip seat 206, the corresponding arc-shaped ribs 401 provide anti-slip resistance, achieving an all-around anti-slip effect.

[0043] Side wing stabilizing plates 500 are fixedly connected to both sides of the horizontal bed frame 100. The side wing stabilizing plates 500 are horizontally arranged metal plates, with their inner ends welded to the side walls of the horizontal bed frame 100 and their outer ends extending outwards from the bed frame. A horizontally extending sliding cavity is formed inside the side wing stabilizing plates 500, within which a telescopic support arm 501 is slidably connected. The telescopic support arm 501 is a long, strip-shaped rod, with its inner end slidably confined within the sliding cavity and its outer end extending outside the sliding cavity. A ground abutment block 502, which is disc-shaped or square-shaped, is fixedly connected to the extended end of the telescopic support arm 501. The bottom of the ground abutment block 502 is provided with a universal adjustment ball head 503, which includes a ball seat and a ball body. The ball seat is fixed inside the ground abutment block 502, and the ball body rotates and fits into the ball seat. The bottom of the ball body extends out of the bottom surface of the ground abutment block 502 and is fixedly connected to an auxiliary suction cup 504. The universal adjustment ball head 503 allows the auxiliary suction cup 504 to deflect at any angle relative to the ground abutment block 502 to adapt to ground with different slopes.

[0044] The telescopic support arm 501 is connected to the fixed frame 202 via a linkage rope 505. The linkage rope 505 is made of steel wire rope or high-strength synthetic fiber rope. The middle of the linkage rope 505 passes through a fixed pulley group fixed to the bottom of the horizontal bed 100. The fixed pulley group includes a first fixed pulley 601 and a second fixed pulley 602. The first fixed pulley 601 is fixed to the lower part of the outer wall of the fixed cylinder 201, and the second fixed pulley 602 is fixed to the bottom of the inner end of the side wing stabilizing plate 500. One end of the linkage rope 505 is fixedly connected to the side wall of the fixed frame 202, and the other end passes around the first fixed pulley 601, extends to the second fixed pulley 602, passes around the second fixed pulley 602, and is fixedly connected to the inner end of the telescopic support arm 501. A reset spring 603 is sleeved on the outside of the telescopic support arm 501. One end of the reset spring 603 abuts against the inner end wall of the sliding cavity, and the other end abuts against the shoulder of the telescopic support arm 501.

[0045] When the fixed frame 202 moves downward, it pulls one end of the linkage rope 505 downward. The linkage rope 505, through the redirection action of the first and second fixed pulleys 601, pulls the telescopic support arm 501 outward from the side wing stabilizing plate 500. After the telescopic support arm 501 extends, the ground contact block 502 and the auxiliary suction cup 504 move outward and contact the ground, forming additional support points on both sides of the horizontal bed 100, increasing the anti-overturning stabilizing moment of the bed. When the fixed frame 202 returns to its original position, the linkage rope 505 relaxes, and the return spring 603 pushes the telescopic support arm 501 back into the sliding cavity.

[0046] This embodiment further defines the assembly relationship between the linkage rope 505 and the fixed pulley assembly. The first fixed pulley 601 is fixedly connected to the lower part of the outer wall of the fixed cylinder 201 via a first bracket. The wheel surface of the first fixed pulley 601 is vertically arranged and its axis is perpendicular to the moving direction of the fixed frame 202. The second fixed pulley 602 is fixedly connected to the inner end of the bottom surface of the side wing stabilizing plate 500 via a second bracket. The wheel surface of the second fixed pulley 602 is vertically arranged and its axis is parallel to the axis of the first fixed pulley 601. One end of the linkage rope 505 is fixedly connected to a pull ring on the side wall of the fixed frame 202 via a rope buckle. The pull ring is located near the bottom of the side wall of the fixed frame 202. The linkage rope 505 extends downward from the pull ring, passes around the bottom of the wheel surface of the first fixed pulley 601, extends horizontally to the second fixed pulley 602, passes around the bottom of the wheel surface of the second fixed pulley 602, extends horizontally, and is fixedly connected to the rope bolt at the inner end of the telescopic support arm 501.

[0047] The fixed pulley system converts the vertical movement of the fixed frame 202 into the horizontal movement of the telescopic support arm 501, and the stroke ratio of the two linkage ropes 505 is adjusted by setting the diameter of the fixed pulleys. Preferably, the first fixed pulley 601 and the second fixed pulley 602 have the same diameter, so that the vertical displacement of the fixed frame 202 is equal to the horizontal extension of the telescopic support arm 501. The return spring 603 is sleeved on the outside of the telescopic support arm 501, with its inner end abutting against the inner end wall of the sliding cavity and its outer end abutting against the annular flange integrally formed in the middle of the telescopic support arm 501. When the telescopic support arm 501 extends, the return spring 603 is compressed and stores energy; when the fixed frame 202 returns to its original position, the return spring 603 releases energy to push the telescopic support arm 501 back.

[0048] Based on Embodiment 1, a pressure sensing module 700 is fixedly connected to the top of the inner wall of the fixed cylinder 201. The pressure sensing module 700 is a thin-film pressure sensor or a miniature piezoresistive sensor, fixed at the center of the top surface of the inner wall of the fixed cylinder 201, directly opposite the top surface of the fixed frame 202. The signal output terminal of the pressure sensing module 700 is electrically connected to a controller 701 via wires. The controller 701 is a PLC control unit or a microcontroller control board, fixedly installed below the bed board of the horizontal bed 100. The output terminal of the controller 701 is electrically connected to an audible and visual alarm 702 located on the side wall of the horizontal bed 100. The audible and visual alarm 702 is an alarm device integrating an LED indicator and a buzzer.

[0049] The controller 701 has a pre-programmed control program that operates as follows: When the fixed frame 202 moves upward to its retracted position, the top surface of the fixed frame 202 presses against the pressure sensing module 700, which sends a high-level pressure signal to the controller 701. The controller 701 receives this pressure signal and determines that the fixed frame 202 is in its retracted position, then controls the audible and visual alarm 702 to emit a green indicator light, indicating that the bed is currently movable. When the fixed frame 202 moves downward and disengages from the pressure sensing module 700, the pressure sensing module 700 sends a low-level signal or no signal to the controller 701. The controller 701 starts timing. After the no-signal state continues for a preset time (e.g., 3-5 seconds), the controller 701 determines that the fixing frame 202 is in a stable locked working state, controls the audible and visual alarm 702 to emit a red warning light, and at the same time the buzzer emits a short prompt sound to remind medical staff and surrounding personnel that the bed is in a locked state, so as to avoid accidental pushing of the bed, which may cause damage to the equipment or injury to the patient.

[0050] Based on Embodiment Nine, the controller 701 integrates a wireless communication module 800. The wireless communication module 800 is a Wi-Fi module, Bluetooth module, or ZigBee module, preferably a Wi-Fi module for accessing the hospital's local area network. The wireless communication module 800 is used to establish a communication connection with a nurse station terminal or a mobile nursing terminal (such as a nurse's handheld PDA).

[0051] The signal input terminal of the controller 701 is also connected to a vacuum detection module, which is a miniature air pressure sensor installed inside the through-tube 207 to monitor the vacuum level inside the suction cup 203 in real time. When the controller 701 detects that the fixing frame 202 is in a locked state but the vacuum level of the suction cup 203 is lower than a preset threshold (e.g., -50kPa), the controller 701 determines that the suction cup 203 has failed to adhere and sends a bed displacement alarm signal to the nurse station terminal through the wireless communication module 800, prompting the nursing staff to check and relock the device in time.

[0052] An electronic level 900 is also embedded in the surface of the mounting bracket 202. The electronic level 900 is a MEMS tilt sensor, and its signal output terminal is connected to the signal input terminal of the controller 701. The electronic level 900 detects the horizontal tilt angle data of the horizontal bed 100 in real time and transmits it to the controller 701. When the controller 701 determines that the bed tilt angle exceeds the preset safety range (e.g., ±0.5°), the controller 701 calculates the required compensation adjustment amount for each lead screw 214 based on the tilt angle data from the electronic level 900, and controls the lead screw drive motor 901 to perform automatic fine adjustment. The lead screw drive motor 901 is a servo motor, and its output shaft is connected to the top of the lead screw 214 via a coupling, replacing the manual handwheel. The controller 701 precisely controls the extension of each fixed bracket 202 by driving the motor to rotate forward and backward and rotate the angle until the tilt angle data fed back by the electronic level 900 returns to the horizontal state (tilt angle ≤ 0.1°), realizing the automatic leveling function of the bed, which is especially suitable for use scenarios where hematology patients have extremely high requirements for bed stability.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A structure for a hematology nursing bed, characterized in that, include: The bed frame also includes an anti-deviation stabilization mechanism, which comprises a fixed cylinder fixedly connected to both ends of the bed frame. A fixed frame is slidably connected to the inner wall of the fixed cylinder. A lead screw is rotatably connected to the inner wall of the fixed cylinder. The surface of the lead screw is threaded to the inner wall of the fixed frame. Two suction cups and a magnetic frame are fixedly connected to the surface of the fixed frame. A movable block is hinged to the inner wall of the magnetic frame. An anti-slip seat is slidably connected to the inner wall of the movable block.

2. The structure of the hematology nursing bed according to claim 2, characterized in that, The inner wall of the fixing frame has two through holes, and a through pipe is fixedly connected to the inner wall of the fixing frame; a one-way air outlet pipe and an air inlet pipe are fixedly connected to the inner wall of the through pipe, and the through holes are connected to the through pipe; a filter screen is fixedly connected to the inner wall of the through hole, and a rubber plug is threaded onto the surface of the air inlet pipe.

3. The structure of the hematology nursing bed according to claim 3, characterized in that, A spring is fixedly connected to the bottom of the movable block, and the bottom end of the spring is fixedly connected to the end of the anti-slip seat; the movable block is a galvanized iron component, and the surface of the magnetic frame is magnetically attracted to the surface of the movable block; the surface of the fixed frame is slidably connected to the lower end of the inner wall of the horizontal bed.

4. The structure of the hematology nursing bed according to claim 1, characterized in that, The inner wall of the fixed cylinder has two limiting grooves, and the upper surface of the fixed frame is slidably connected to the inner wall of the limiting grooves.

5. The structure of the hematology nursing bed according to claim 5, characterized in that, An annular elastic sealing gasket is fixedly connected to the surface of the fixing frame outside the through hole. An annular clearance groove is provided at the bottom end of the annular elastic sealing gasket. When the suction cup is adsorbed on the ground, the bottom end of the annular elastic sealing gasket abuts against the ground and deforms to form an auxiliary sealing ring cavity on the outer periphery of the suction cup. The interior of the through hole is connected to the auxiliary sealing ring cavity through an auxiliary air passage.

6. The structure of the hematology nursing bed according to claim 1, characterized in that, The bottom end of the anti-slip base is fixedly connected to a friction enhancement layer. The bottom surface of the friction enhancement layer is provided with a number of arc-shaped protrusions arranged in concentric circles. The cross-section of the arc-shaped protrusions is trapezoidal, and the bottom surface of the arc-shaped protrusions is provided with micro-pore grooves. The micro-pore grooves are used to squeeze out the internal air to form negative pressure adsorption when the anti-slip base is pressed.

7. The structure of the hematology nursing bed according to claim 1, characterized in that, The horizontal bed is also fixedly connected to both sides of the side wing stabilizing plate. The inside of the side wing stabilizing plate is a telescopic support arm that is slidably connected. The extended end of the telescopic support arm is fixedly connected to a ground abutment block. The bottom of the ground abutment block is provided with a universal adjustment ball head. The bottom of the universal adjustment ball head is fixedly connected to an auxiliary suction cup. The telescopic support arm is connected to the fixed frame through a linkage pull rope. When the fixed frame moves downward, the linkage pull rope drives the telescopic support arm to extend outward.

8. The structure of the hematology nursing bed according to claim 1, characterized in that, The middle part of the linkage pull rope is threaded through a fixed pulley group fixed to the bottom of the horizontal bed. The fixed pulley group includes a first fixed pulley and a second fixed pulley. One end of the linkage pull rope is fixedly connected to the side wall of the fixed frame, and the other end passes around the first fixed pulley and the second fixed pulley and is fixedly connected to the end of the telescopic support arm. A reset spring is sleeved on the outside of the telescopic support arm. The reset spring is used to push the telescopic support arm to retract when the fixed frame is reset upward.

9. The structure of the hematology nursing bed according to claim 1, characterized in that, A pressure sensing module is fixedly connected to the top of the inner wall of the fixed cylinder. The signal output terminal of the pressure sensing module is electrically connected to a controller. The output terminal of the controller is electrically connected to an audible and visual alarm installed on the side wall of the horizontal bed. When the fixed frame moves upward and presses the pressure sensing module, the controller receives the pressure signal and determines that the fixed frame is in the retracted position, and controls the audible and visual alarm to emit a green warning light. When the fixed frame moves downward and disengages from the pressure sensing module for a preset time, the controller controls the audible and visual alarm to emit a red warning light to indicate that the bed is in the locked state.

10. The structure of the hematology nursing bed according to claim 10, characterized in that, The controller integrates a wireless communication module, which is used to establish a communication connection with the nurse station terminal or mobile nursing terminal. When the controller detects that the fixation frame is in an abnormal suspended state or the vacuum degree of the suction cup is lower than a preset threshold, the controller sends a bed displacement alarm signal to the nurse station terminal through the wireless communication module. The surface of the fixation frame is also embedded with an electronic level, the signal output terminal of which is connected to the controller. The controller controls the lead screw drive motor to perform automatic fine adjustment based on the tilt angle data of the electronic level until the horizontal bed is restored to a level state.

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