Electric patient transfer bed-paddle-type push rod and tubular motor double-driving system
A drive system and dual motor technology, applied in hospital beds, medical science, hospital equipment, etc., can solve problems such as reliability impact, large bed size, damage to the transmission system, etc., to improve reliability, reduce complexity, and reduce bed body. light effect
Inactive Publication Date: 2012-11-21
CHANGSHU HUICHENG ELECTROMECHANICAL TECH
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Problems solved by technology
This traditional driving method has many shortcomings. First, the structure is more complicated, there are more moving parts, the cost is higher, and its reliability is also affected; second, due to the limitation of the chain drive structure size, the bed surface Range of motion is compromised, leaving more dead space in the bed deck
Therefore, the size of the bed surface is relatively large; thirdly, the speed of the bed surface cloth and the bed surface is interrelated. It cannot be changed, so the function of variable differential speed cannot be realized; Fourth, the limit position of the bed panel movement needs to be very precisely defined, otherwise the transmission system will be directly damaged
Therefore, it is necessary to additionally set up a sensor system and a linkage system for the limit, and the reliability is difficult to guarantee
Method used
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[0012] figure 1 Among them, the electro-hydraulic push rod 1 is the prime mover for pushing the bed panel 9 . The bottom of electro-hydraulic push rod 1 is connected together with bed frame 6 because of. On the protruding end of the electro-hydraulic push rod 1 is a revolving pin, which is placed in the paddle rod chute 7 on the two symmetrical paddle rods 2 . The other end of two paddle bars 2 and bed panel 9 are connected together by bed surface hinge 5. Rotary slide block 3 is connected as a whole with bed frame 6 by a swivel pair, and paddle bar 2 is passed through the inner slideway of rotary slide block 3. The paddle bar 2 can slide in the slideway of the rotary slider 3, and the rotary slider 3 can be rotated with the paddle 2 swinging. When the electro-hydraulic push rod 1 stretches, with the rotating slider 3 as the fulcrum, the re-pin on the electro-hydraulic push rod 1 drives the bed surface hinge 5 of the paddle rod 2 by pushing the paddle rod chute 7, thereby p...
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The invention discloses an electric patient transfer bed-paddle-type push rod and tubular motor double-driving system, which consists of an electric hydraulic push rod (1), paddle rods (2), a rotary sliding plate (3), a limiting groove (4), a bed surface turning hinge (5), a bed frame (6), paddle rod chutes (7), a supporting plate (8), a bed panel (9), a cloth roller (10), bed surface cloth (11),a cloth pressing roller (12), a tubular motor (13) and a control unit. An electric hydraulic push rod base is fixedly connected to the supporting plate, and the extended end of the electric hydraulicpush rod base is connected with two symmetrical paddle rod chutes. Two paddle rods are connected with the bed panel at the bed surface turning hinge. The electric hydraulic push rod stretches and retracts to drive the paddle rods to pull the bed panel by using a rotating slide block as the fulcrum to move along the limiting groove so as to realize transferring of a patient. Under the control of the control unit, the cloth roller of the built-in tubular motor drives the bed surface cloth to move synchronously or asynchronously relative to the bed panel. The system reduces the complexity of thedriving part of the conventional similar product, is more favorable for transferring the patient, reduces the cost and improves the reliability.
Description
Technical field [0001] The invention relates to a power drive system for an electric patient transfer bed. It belongs to the field of medical auxiliary equipment. Background technique [0002] At present, the patient transfer bed is used in the transfer of critically ill patients and surgical patients, and is a new type of medical auxiliary equipment. The driving part of present known patient transfer bed is made up of motor, chain, rack and pinion and electromagnetic clutch. The motor acts as the prime mover to drive the main chain to move, the main chain drives the transmission shaft to rotate through the sprocket, and the transmission shaft drives the propulsion system composed of chain and sprocket to move, and the bed panel is fixed on the chain of the propulsion system, thus driving the bed panel to move . The rack and pinion are used to realize the cloth rolling function. Through the cooperation of the electromagnetic clutch and the reasonable selection of the diam...
Claims
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IPC IPC(8): A61G7/05
Inventor 朱建江臧铁钢
Owner CHANGSHU HUICHENG ELECTROMECHANICAL TECH