The purpose of this utility model is exactly in order to overcome the shortcoming of existing medical bed for nursing care, and a kind of can the operation by user oneself that provides, can lifting backboard and leg-placing plate medical bed for nursing care.
The purpose of this utility model is achieved in that a kind of medical bed for nursing care, comprises bedstead and bed body, is characterized in, described bed body is movable, comprises backboard, back, middle plate and leg-placing plate and an electronic control section; Described elevating mechanism is located at the back of the backboard and the leg-placing plate of a body respectively, respectively the backboard of control bed body and the rise and the landing of leg-placing plate; Described electronic control section is made up of power supply, motor, hand switch and relay.
Above-mentioned medical bed for nursing care, wherein, the elevating mechanism at the described backboard back side comprises a supporting traverse, a variable speed electric motors, particularly, a screw rod, a loop bar, and a pair of enhancing support bar; Described supporting traverse is installed in the back at backrest position; Described variable speed electric motors, particularly is installed on the bedstead; Described screw rod one end links to each other with the output shaft of variable speed electric motors, particularly by a bearing; Described loop bar one end and screw rod are spirally connected, and the middle part of the other end and crossbeam is fixed; Described a pair of reinforcement support bar is made of interior bar and the outer tube that is enclosed within outside the interior bar respectively, and is located at the both sides of lifting screw respectively; The outer tube upper end of every reinforcement support bar is connected with a side of crossbeam, and pipe lower end and bedstead are connected in it.
Above-mentioned medical bed for nursing care, wherein, the described elevating mechanism that is located at the leg-placing plate back side comprises a motor, a change speed gear box, a pair of main driven gear, a chain, an eccentric cam and a crank-bar linkage and a lifting push rod; Described motor is connected with master gear by change speed gear box; Described driven gear is connected with eccentric cam is eccentric, and this driven gear is in transmission connection by chain and driving gear; One end of described crank connecting link is connected with eccentric cam is eccentric, and the top of this crank connecting link and the leg-placing plate back side are connected; Described eccentric cam also is provided with a bearing outward, and cam ring is set on the bearing outside, sets firmly a lifting link rod on this cam ring, and the top of this lifting link rod is connected with the back side of bed body leg-placing plate.
Because this utility model has adopted above structure, just adopt the shift-in of electronic control running part and control dish to shift out, as long as so user press control knob, just can finish required function voluntarily, convenient freely, safe and practical.
Concrete structure of the present utility model is further proposed by following embodiment and accompanying drawing thereof.
See also Fig. 1, a kind of medical bed for nursing care of this utility model comprises bedstead 1 and bed body 2, and its body is movable, comprisebackboard 21,back 22,middle plate 23 and leg-placing plate 24, adopt hinge type to connect between described backboard, back, middle plate and the leg-placing plate respectively.Also comprise two elevating mechanisms 5,6.Elevating mechanism 5,6 is located at the back of thebackboard 21 and the leg-placing plate 24 of a body respectively, respectively the backboard of control bed body and the rise and the landing of leg-placing plate.
Ask for an interview Fig. 2, the elevating mechanism 5 that this utility model backboard back side is provided with comprises a supporting traverse 51, a variable speed electric motors, particularly 52, ascrew rod 53, aloop bar 54, and a pair of enhancing support bar 55.Supporting traverse 51 is installed in the back ofbackboard 21; Variable speed electric motors, particularly is installed on the bedstead; Screwrod 53 1 ends link to each other with the output shaft of variable speed electric motors, particularly by a bearing; Loop bar one end and screw rod are spirally connected, and the middle part of the other end and crossbeam is fixed; A pair of reinforcement support bar is made of interior bar and the outer tube that is enclosed within outside the interior bar respectively, and is located at the both sides of lifting screw respectively; The outer tube upper end of every reinforcement support bar is connected with a side of crossbeam, and pipe lower end and bedstead are connected in it.Start the variable speed electric motors, particularly rotating screw bolt, nut is moved with axis direction reach back lifting purpose.Strengthen the effect that support bar plays about balance and bears downforce.
See also Fig. 3, the elevating mechanism 6 that this utility model is located at the leg-placing plate back side comprises a motor 61, a change speed gear box 62, a driving gear, a driven gear 63, a chain 64, aneccentric cam 65 and a crank-bar linkage 66 and alifting push rod 67; Motor is connected with master gear by change speed gear box; Driven gear is connected with eccentric cam is eccentric, and this driven gear is in transmission connection by chain and driving gear.
See also 3b, an end of crank connecting link and 65 eccentric connections of eccentric cam, the top of this crank connecting link and the leg-placing plate back side are connected; Eccentric cam also is provided with a bearing 651 outward, andcam ring 68 is set on the bearing outside, sets firmly a lifting link rod 69 on this cam ring, and the top of this lifting link rod is connected with the back side of bed body leg-placing plate.During action, utilizing the cam center square to change with the fulcrum bearing is the center back and forth movement, drives lifting push rod knee-action, makes the leg-placing plate undulatory motion; Crank-bar linkage rotates with the dot center's square that is connected with cam simultaneously, to reach the crank-bar linkage rectilinear motion, drives shank and lifts, put down, even shuttling movement, make the lower limb exercise.
Ask for an interview Fig. 4, electronic control section of the present utility model is made up of arrangement power supply, hand switch and relay, and its operating principle is described as follows:
Electronic control section of the present utility model is described as follows:
1.220V alternating current is exported direct current 24V after transformator and rectifier cell conversion.
2. after starting band locking press button SB1,3-5 switches on, the running of relay K 1 adhesive actuating motor, and this moment, the foot ascending, descending all can not be rotated.
3. fall by group SB2, SB3 when pressing foot liter, foot, K1 or K2 adhesive respectively, the foot crawl rises or falls, and when meeting the limit position SQ1 that rises or fall or SQ2, rises or falls and stop.
4. the back of the body rises or button SB4 or SB5 fall in the back of the body when pressing, and K3 or K4 adhesive respectively, the back of the body rise or fall, and when meeting the limit position SQ3 that rises or fall or SQ4, rises or falls and stop.
5. when pressing SB6 or SB7, lean to one side to rise or fall, K5 or K6 adhesive respectively, side rises or falls, and when running into the limit that rises or fall, rises or falls when SQ5 or SQ6 and stop.