CN209984480U - Novel nursing bed with lifting and back lifting functions - Google Patents
Novel nursing bed with lifting and back lifting functions Download PDFInfo
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- CN209984480U CN209984480U CN201920170290.2U CN201920170290U CN209984480U CN 209984480 U CN209984480 U CN 209984480U CN 201920170290 U CN201920170290 U CN 201920170290U CN 209984480 U CN209984480 U CN 209984480U
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- 230000000474 nursing effect Effects 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 85
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 230000002265 prevention Effects 0.000 claims abstract description 8
- 230000003028 elevating effect Effects 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 4
- 210000000078 claw Anatomy 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 2
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Abstract
The utility model discloses a novel nursing bed with go up and down and lift back of body function belongs to the nursing bed field. The utility model discloses a bed body mechanism, elevating system, self-locking mechanism, lift back of the body mechanism, prevent mechanism that sideslips. The bed body mechanism mainly realizes the integral supporting function; the lifting mechanism drives the nut to slide through the rotation of the screw rod, and meanwhile, the bed body mechanism fixedly connected with the clamping jaws slides up and down, so that the lifting function of the nursing bed is realized; the self-locking mechanism is combined with the transmission shaft, so that the safety of the nursing bed is ensured; the back lifting mechanism is used for driving the back plate to lift and simultaneously driving the back plate to move upwards along the frame, so that the back lifting function of the nursing bed is realized; the sideslip prevention mechanism drives the nuts symmetrically arranged on two sides of the sideslip prevention mechanism to move through the rotation of the lead screw, the connecting rod is pushed to drive the left back plate and the right back plate to rotate inwards, and a user is prevented from sideslipping when the nursing bed is lifted. The utility model discloses can realize nursing bed's lift and lift back of the body function to satisfy user's different needs, possess characteristics such as practicality is strong, the security is high.
Description
Technical Field
The utility model belongs to nursing bed field specifically is a novel nursing bed with go up and down and lift back of body function.
Background
The nursing bed can effectively improve the comfort level of the old or the patient lying in bed. From the prior patent search, the prior patent invents the nursing bed with various functions, but in real life, the nursing bed has a plurality of problems: (1) the height of the bed body can not be accurately adjusted, (2) when the back plate is lifted up, the back of a user is easily injured by squeezing, and the sideslip preventing mechanisms on the left side and the right side of the back plate can not be synchronously adjusted. Accordingly, the present invention is provided.
Disclosure of Invention
The utility model provides a novel nursing bed with go up and down and lift back of body function to solve the problem that relates to among the above-mentioned background art. The technical solution is as follows: the utility model provides a novel nursing bed with go up and down and lift back of body function, includes bed body mechanism, elevating system, self-locking mechanism, lifts back of body mechanism and prevents the mechanism that sideslips, its characterized in that: the sliding support 14 of the bed body mechanism slides along the inner wall of the outer cavity of the bed head frame 11 or the bed tail frame 12; a slide rail block 27 of the lifting mechanism drives the bed body longitudinal rod 16 to move through a clamping jaw 28; the self-locking mechanism controls the opening and closing of the cylinder 34 through a sensor arranged on the sliding rail block 27, so that the self-locking mechanism is unlocked or reset; a worm wheel 41 and a worm 42 of the back lifting mechanism form a self-locking mechanism, and a gear 45 rotates to drive a middle back plate 47 fixedly connected with a rack 46 to move upwards; the second nut 502 of the anti-sideslip mechanism drives the fourth connecting rod 505 to rotate through the first hinge support 507, so that the left back plate 509 or the right back plate 510 rotates inwards.
The bed body mechanism comprises a bed head frame 11, a bed tail frame 12, a connecting box 13, a sliding support column 14, a bed body transverse rod 15 and a bed body longitudinal rod 16, wherein the connecting box 13 is fixed on the inner side of the bed head frame 11 or the bed tail frame 12 through bolts, the sliding support column 14 is installed in an outer cavity of the bed head frame 11 or the bed tail frame 12 and slides along the inner wall of the cavity, the bed body transverse rod 15 is connected with the sliding support column 14 through bolts, and the bed body longitudinal rod 16 is connected with the sliding support column 14 through bolts.
Elevating system includes first lead screw 21, the feed bar 22, first nut 23, feed bar slider 24, first lead screw fixing base 25, slide rail 26, slide rail block 27, jack catch 28, first lead screw fixing base 25 passes through the bolt fastening in slide rail 26 inner wall, first lead screw 21 and feed bar 22 pass through bearing and first lead screw fixing base 25 normal running fit, first nut 23 cover is established on first lead screw 21, feed bar slider 24 cover is established on feed bar 22, slide rail block 27 passes through the bolt fastening in first nut 23 or feed bar slider 24 up end, jack catch 28 passes through the bolt and is connected with slide rail block 27, jack catch 28 passes through the bolt and is connected with bed body longitudinal rod 16.
Two optical bars 22 are symmetrically arranged on two sides of the first lead screw 21; the first screw 21 rotates to drive the first nut 23 to move along the first screw 21, the lever slider 24 slides along the lever 22, and the first nut 23 and the lever slider 24 drive the sliding rail block 27 to slide along the sliding rail 26; the upper ends of the slide rails 26 are fixed on the lower end surface of the cross beam of the headstock 11 or the tailstock 12 through bolts; the lower end of the slide rail 26 is fixed on the upper end surface of the connecting box 13 through a bolt; the slide block 27 is provided with a sensor for monitoring the motion information of the slide block 27 and transmitting the motion information to a control system, and the control system controls the cylinder 34 to be started or closed.
The self-locking mechanism comprises a first connecting rod 31, a second connecting rod 32, a third connecting rod 33, an air cylinder 34, a first transmission shaft 35, an upper pawl 36, a lower pawl 37, a pawl mounting block 38 and a ratchet wheel 39, wherein the first connecting rod 31 is hinged to a push rod of the air cylinder 34, the third connecting rod 33 is hinged to the pawl mounting block 38, the first connecting rod 31 and the third connecting rod 33 are hinged to the second connecting rod 32, the upper pawl 36 and the lower pawl 37 are hinged to the pawl mounting block 38, the ratchet wheel 39 is mounted on the first transmission shaft 35 through keys, and the upper pawl 36 and the lower pawl 37 are in gear contact with the ratchet wheel 39.
The upper pawl 36, the lower pawl 37 and the ratchet wheel 39 form a self-locking mechanism; the sliding rail block 27 descends, the control system controls the cylinder 34 to start, the cylinder 34 pushes the third connecting rod 33 to move, the upper pawl 36 and the lower pawl 37 are separated from contact with the gear teeth of the ratchet wheel 39, and the self-locking mechanism is unlocked; the sliding rail block 27 ascends or stops moving, the air cylinder 34 resets, the upper pawl 36 and the lower pawl 37 are in contact with the gear teeth of the ratchet wheel 39 again, the self-locking mechanism resets, and the first lead screw 21 and the first transmission shaft 35 are prevented from rotating reversely to cause damage to the motor; the self-locking mechanism is arranged in the cavity of the connecting box 13.
The back lifting mechanism comprises a worm wheel 41, a worm 42, a second transmission shaft 43, a back lifting block 44, a gear 45, a rack 46, a middle back plate 47 and a middle frame 48, wherein the worm wheel 41 is installed on the second transmission shaft 43 through a key, the worm 42 is connected with an output shaft of the reduction gearbox through a coupling, the back lifting block 44 is installed on the second transmission shaft 43 through a key, the back lifting block 44 is connected with the middle frame 48 through a bolt, the gear 45 is installed on the second transmission shaft 43 through a key, and the rack 46 is fixed on the lower end face of the middle back plate 47 through a bolt.
The worm wheel 41 and the worm 42 form a self-locking mechanism, so that the situation that the motor shaft is reversely rotated to cause motor damage due to overlarge backward leaning force of a user is prevented; the second transmission shaft 43 rotates to drive the back lifting block 44 to rotate, and the back lifting block 44 drives the middle frame 48 to rotate, so that the middle back plate 47 is lifted; the middle back plate 47 slides up and down along the length direction of the middle frame 48; the gear 45 and the rack 46 form a gear-rack transmission mechanism; the second transmission shaft 43 rotates to drive the gear 45 to rotate, the rack 46 moves upwards along the middle frame 48, and the rack 46 drives the middle back plate 47 to move upwards so as to prevent the back of a user from being extruded and injured when the back is lifted; the back lifting mechanisms are disposed on the left and right sides of the middle frame 48.
The sideslip prevention mechanism comprises a second lead screw 501, a second nut 502, a second lead screw fixing seat 503, a lead screw box 504, a fourth connecting rod 505, a fifth connecting rod 506, a first hinge support 507, a second hinge support 508, a left back plate 509, a right back plate 510, a left frame 511, a right frame 512, a hinge 513, a first chain wheel 514, a second chain wheel 515 and a chain 516, wherein the lead screw box 504 is connected with the middle frame 48 through the fifth connecting rod 506, the second lead screw fixing seat 503 is fixed on the inner wall of the lead screw box 504 through bolts, the second lead screw 501 is in rotating fit with the second lead screw fixing seat 503 through a bearing, the second nut 502 is sleeved on the second lead screw 501, the first hinge support 507 is fixed on the upper end surface of the second nut 502 through bolts, the fourth connecting rod 505 is hinged with the first hinge support 507, the fourth connecting rod 505 is hinged with the second hinge support 508, the second hinge support 508 is fixed on the lower end surface of the left back plate 509 or, the left back plate 509 is fixed to the left frame 511, the right back plate 510 is fixed to the right frame 512, the left frame 511 and the right frame 512 are connected to the middle frame 48 through hinges 513, the first sprocket 514 is mounted on the second lead screw 501 through a key, and the second sprocket 515 is mounted on the motor output shaft through a key.
The lead screw box 504 is parallel to the middle frame 48, and the distance is kept constant; threads are arranged at two ends of the second lead screw 501, and are both trapezoidal threads, so that the self-locking capability is realized; the threads at the two ends of the second lead screw 501 are reverse; the second nut 502 moves along the second lead screw 501; the second nuts 502 are symmetrically arranged at two ends of the second lead screw 501; the second screw 501 rotates to drive the second nuts 502 to move in opposite directions respectively; the second nut 502 pushes the fourth link 505 to rotate through the first hinge support 507, and the fourth link 505 drives the left back plate 509 or the right back plate 510 to rotate inwards.
Drawings
FIG. 1 is a schematic view of the bed body mechanism of the present invention;
FIG. 2 is a schematic view of the lifting mechanism of the present invention;
FIG. 3 is a schematic view of the self-locking mechanism of the present invention;
FIG. 4 is a schematic view of the back lifting mechanism of the present invention;
fig. 5 is a schematic view of the sideslip prevention mechanism of the present invention.
Labeled as:
11-a headstock; 12-tailstock; 13-connecting box; 14-a sliding support; 15-bed cross bar; 16-longitudinal bar of bed body;
21-a first lead screw; 22-a light bar; 23 — a first nut; 24-a lever slide; 25-a first lead screw fixing seat; 26-a slide rail; 27-a slide block; 28-a jaw;
31 — a first link; 32-a second link; 33-a third link; 34-a cylinder; 35-a first drive shaft; 36 — upper pawl; 37-lower pawl; 38-pawl mounting block; 39-ratchet wheel;
41-a worm gear; 42-a worm; 43 — a second drive shaft; 44-back lifting block; 45-gear; 46-a rack; 47 — middle back plate; 48-middle frame;
501-a second lead screw; 502-second nut; 503-a second lead screw fixing seat; 504-lead screw box; 505 — a fourth link; 506-a fifth link; 507-a first hinge support; 508 — second hinge support; 509 — left back panel; 510-right back plate; 511-left frame; 512-right frame; 513-hinges; 514 — a first sprocket; 515-a second sprocket; 516 — chain.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly understood, the present invention will be further described in detail with reference to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5. As can be known from the figures 1, 2, 3, 4 and 5, the novel nursing bed with the lifting and back-lifting functions comprises a bed body mechanism, a lifting mechanism, a self-locking mechanism, a back-lifting mechanism and a side-slipping prevention mechanism, and is characterized in that: the sliding support 14 of the bed body mechanism slides along the inner wall of the outer cavity of the bed head frame 11 or the bed tail frame 12; a slide rail block 27 of the lifting mechanism drives the bed body longitudinal rod 16 to move through a clamping jaw 28; the self-locking mechanism controls the opening and closing of the cylinder 34 through a sensor arranged on the sliding rail block 27, so that the self-locking mechanism is unlocked or reset; a worm wheel 41 and a worm 42 of the back lifting mechanism form a self-locking mechanism, and a gear 45 rotates to drive a middle back plate 47 fixedly connected with a rack 46 to move upwards; the second nut 502 of the anti-sideslip mechanism drives the fourth connecting rod 505 to rotate through the first hinge support 507, so that the left back plate 509 or the right back plate 510 rotates inwards.
The bed body mechanism comprises a bed head frame 11, a bed tail frame 12, a connecting box 13, a sliding support column 14, a bed body transverse rod 15 and a bed body longitudinal rod 16, wherein the connecting box 13 is fixed on the inner side of the bed head frame 11 or the bed tail frame 12 through bolts, the sliding support column 14 is installed in an outer cavity of the bed head frame 11 or the bed tail frame 12 and slides along the inner wall of the cavity, the bed body transverse rod 15 is connected with the sliding support column 14 through bolts, and the bed body longitudinal rod 16 is connected with the sliding support column 14 through bolts.
Elevating system includes first lead screw 21, the feed bar 22, first nut 23, feed bar slider 24, first lead screw fixing base 25, slide rail 26, slide rail block 27, jack catch 28, first lead screw fixing base 25 passes through the bolt fastening in slide rail 26 inner wall, first lead screw 21 and feed bar 22 pass through bearing and first lead screw fixing base 25 normal running fit, first nut 23 cover is established on first lead screw 21, feed bar slider 24 cover is established on feed bar 22, slide rail block 27 passes through the bolt fastening in first nut 23 or feed bar slider 24 up end, jack catch 28 passes through the bolt and is connected with slide rail block 27, jack catch 28 passes through the bolt and is connected with bed body longitudinal rod 16.
Two optical bars 22 are symmetrically arranged on two sides of the first lead screw 21; the first screw 21 rotates to drive the first nut 23 to move along the first screw 21, the lever slider 24 slides along the lever 22, and the first nut 23 and the lever slider 24 drive the sliding rail block 27 to slide along the sliding rail 26; the upper ends of the slide rails 26 are fixed on the lower end surface of the cross beam of the headstock 11 or the tailstock 12 through bolts; the lower end of the slide rail 26 is fixed on the upper end surface of the connecting box 13 through a bolt; the slide block 27 is provided with a sensor for monitoring the motion information of the slide block 27 and transmitting the motion information to a control system, and the control system controls the cylinder 34 to be started or closed.
The self-locking mechanism comprises a first connecting rod 31, a second connecting rod 32, a third connecting rod 33, an air cylinder 34, a first transmission shaft 35, an upper pawl 36, a lower pawl 37, a pawl mounting block 38 and a ratchet wheel 39, wherein the first connecting rod 31 is hinged to a push rod of the air cylinder 34, the third connecting rod 33 is hinged to the pawl mounting block 38, the first connecting rod 31 and the third connecting rod 33 are hinged to the second connecting rod 32, the upper pawl 36 and the lower pawl 37 are hinged to the pawl mounting block 38, the ratchet wheel 39 is mounted on the first transmission shaft 35 through keys, and the upper pawl 36 and the lower pawl 37 are in gear contact with the ratchet wheel 39.
The upper pawl 36, the lower pawl 37 and the ratchet wheel 39 form a self-locking mechanism; the sliding rail block 27 descends, the control system controls the cylinder 34 to start, the cylinder 34 pushes the third connecting rod 33 to move, the upper pawl 36 and the lower pawl 37 are separated from contact with the gear teeth of the ratchet wheel 39, and the self-locking mechanism is unlocked; the sliding rail block 27 ascends or stops moving, the air cylinder 34 resets, the upper pawl 36 and the lower pawl 37 are in contact with the gear teeth of the ratchet wheel 39 again, the self-locking mechanism resets, and the first lead screw 21 and the first transmission shaft 35 are prevented from rotating reversely to cause damage to the motor; the self-locking mechanism is arranged in the cavity of the connecting box 13.
The back lifting mechanism comprises a worm wheel 41, a worm 42, a second transmission shaft 43, a back lifting block 44, a gear 45, a rack 46, a middle back plate 47 and a middle frame 48, wherein the worm wheel 41 is installed on the second transmission shaft 43 through a key, the worm 42 is connected with an output shaft of the reduction gearbox through a coupling, the back lifting block 44 is installed on the second transmission shaft 43 through a key, the back lifting block 44 is connected with the middle frame 48 through a bolt, the gear 45 is installed on the second transmission shaft 43 through a key, and the rack 46 is fixed on the lower end face of the middle back plate 47 through a bolt.
The worm wheel 41 and the worm 42 form a self-locking mechanism, so that the situation that the motor shaft is reversely rotated to cause motor damage due to overlarge backward leaning force of a user is prevented; the second transmission shaft 43 rotates to drive the back lifting block 44 to rotate, and the back lifting block 44 drives the middle frame 48 to rotate, so that the middle back plate 47 is lifted; the middle back plate 47 slides up and down along the length direction of the middle frame 48; the gear 45 and the rack 46 form a gear-rack transmission mechanism; the second transmission shaft 43 rotates to drive the gear 45 to rotate, the rack 46 moves upwards along the middle frame 48, and the rack 46 drives the middle back plate 47 to move upwards so as to prevent the back of a user from being extruded and injured when the back is lifted; the back lifting mechanisms are disposed on the left and right sides of the middle frame 48.
The sideslip prevention mechanism comprises a second lead screw 501, a second nut 502, a second lead screw fixing seat 503, a lead screw box 504, a fourth connecting rod 505, a fifth connecting rod 506, a first hinge support 507, a second hinge support 508, a left back plate 509, a right back plate 510, a left frame 511, a right frame 512, a hinge 513, a first chain wheel 514, a second chain wheel 515 and a chain 516, wherein the lead screw box 504 is connected with the middle frame 48 through the fifth connecting rod 506, the second lead screw fixing seat 503 is fixed on the inner wall of the lead screw box 504 through bolts, the second lead screw 501 is in rotating fit with the second lead screw fixing seat 503 through a bearing, the second nut 502 is sleeved on the second lead screw 501, the first hinge support 507 is fixed on the upper end surface of the second nut 502 through bolts, the fourth connecting rod 505 is hinged with the first hinge support 507, the fourth connecting rod 505 is hinged with the second hinge support 508, the second hinge support 508 is fixed on the lower end surface of the left back plate 509 or, the left back plate 509 is fixed to the left frame 511, the right back plate 510 is fixed to the right frame 512, the left frame 511 and the right frame 512 are connected to the middle frame 48 through hinges 513, the first sprocket 514 is mounted on the second lead screw 501 through a key, and the second sprocket 515 is mounted on the motor output shaft through a key.
The lead screw box 504 is parallel to the middle frame 48, and the distance is kept constant; threads are arranged at two ends of the second lead screw 501, and are both trapezoidal threads, so that the self-locking capability is realized; the threads at the two ends of the second lead screw 501 are reverse; the second nut 502 moves along the second lead screw 501; the second nuts 502 are symmetrically arranged at two ends of the second lead screw 501; the second screw 501 rotates to drive the second nuts 502 to move in opposite directions respectively; the second nut 502 pushes the fourth link 505 to rotate through the first hinge support 507, and the fourth link 505 drives the left back plate 509 or the right back plate 510 to rotate inwards.
The working principle is as follows: the first screw 21 rotates to drive the first nut 23 to move along the first screw 21, meanwhile, the slide rail block 27 connected with the first nut 23 slides up and down along the slide rail 26, the slide rail block 27 drives the bed body longitudinal rod 16 to ascend or descend through the clamping jaw 28, and the bed body longitudinal rod 16 drives the sliding support 14 to slide along the inner wall of the outer cavity of the bed head frame 11 or the bed tail frame 12, so that the lifting function of the nursing bed is realized; meanwhile, a sensor is fixed on the sliding rail block 27 and used for monitoring the movement information of the sliding rail block 27 and transmitting the movement information to the control system, and the control system controls the on-off of the air cylinder 34 to control the working condition of the self-locking mechanism, so that the self-locking function of the nursing bed is realized. The worm 42 drives the second transmission shaft 43 to rotate through the worm wheel 41, the second transmission shaft 43 drives the back lifting block 44 to rotate, and the middle back plate 47 is lifted; meanwhile, the gear 45 circumferentially fixed on the second transmission shaft 43 drives the rack 46 to move upwards along the middle frame 48, and the rack 46 drives the middle back plate 47 to move upwards along the middle frame 48, so that the back lifting function of the nursing bed is realized. The second screw 501 rotates to drive the second nuts 502 symmetrically arranged on two sides of the second screw to move in opposite directions, the second nuts 502 push the fourth connecting rod 505 to rotate, and the fourth connecting rod 505 drives the left back plate 509 or the right back plate 510 to rotate inwards, so that the anti-sideslip function of the nursing bed is realized.
Claims (10)
1. The utility model provides a novel nursing bed with go up and down and lift back of body function, includes bed body mechanism, elevating system, self-locking mechanism, lifts back of body mechanism and prevents the mechanism that sideslips, its characterized in that: a sliding support column (14) of the bed body mechanism slides along the inner wall of an external cavity of the bed head frame (11) or the bed tail frame (12); a slide rail block (27) of the lifting mechanism drives a bed body longitudinal rod (16) to move through a claw (28); the self-locking mechanism controls the opening and closing of the cylinder (34) through a sensor arranged on the sliding rail block (27), so that the self-locking mechanism is unlocked or reset; a worm wheel (41) and a worm (42) of the back lifting mechanism form a self-locking mechanism, and a gear (45) rotates to drive a middle back plate (47) fixedly connected with a rack (46) to move upwards; a second nut (502) of the sideslip prevention mechanism drives a fourth connecting rod (505) to rotate through a first hinged support (507), and inward rotation of a left back plate (509) or a right back plate (510) is achieved.
2. The novel nursing bed with lifting and back-lifting functions as claimed in claim 1, wherein: the bed body mechanism comprises a bed head frame (11), a bed tail frame (12), a connecting box (13), a sliding support column (14), a bed body transverse rod (15) and a bed body longitudinal rod (16), wherein the connecting box (13) is fixed on the inner side of the bed head frame (11) or the bed tail frame (12) through bolts, the sliding support column (14) is installed in an outer cavity of the bed head frame (11) or the bed tail frame (12) and slides along the inner wall of the cavity, the bed body transverse rod (15) is connected with the sliding support column (14) through bolts, and the bed body longitudinal rod (16) is connected with the sliding support column (14) through bolts.
3. The novel nursing bed with lifting and back-lifting functions as claimed in claim 1, wherein: elevating system includes first lead screw (21), feed rod (22), first nut (23), feed rod slider (24), first lead screw fixing base (25), slide rail (26), slide rail piece (27), jack catch (28), first lead screw fixing base (25) are fixed in slide rail (26) inner wall through the bolt, first lead screw (21) and feed rod (22) pass through bearing and first lead screw fixing base (25) normal running fit, first nut (23) cover is established on first lead screw (21), feed rod slider (24) cover is established on feed rod (22), slide rail piece (27) are fixed in first nut (23) or feed rod slider (24) up end through the bolt, jack catch (28) are connected with feed rod piece (27) through the bolt, jack catch (28) are connected with bed body longitudinal rod (16) through the bolt.
4. The novel nursing bed with lifting and back-lifting functions as claimed in claim 3, wherein: two parallel bars (22) are symmetrically arranged on two sides of the first lead screw (21); the first screw rod (21) rotates to drive the first nut (23) to move along the first screw rod (21), the feed bar sliding block (24) slides along the feed bar (22), and the first nut (23) and the feed bar sliding block (24) drive the sliding rail block (27) to slide along the sliding rail (26); the upper ends of the slide rails (26) are fixed on the lower end surface of a cross beam of the bed head frame (11) or the bed tail frame (12) through bolts; the lower end of the slide rail (26) is fixed on the upper end surface of the connecting box (13) through a bolt; the sliding rail block (27) is provided with a sensor for monitoring the movement information of the sliding rail block (27) and transmitting the movement information to a control system, and the control system controls the cylinder (34) to be started or closed.
5. The novel nursing bed with lifting and back-lifting functions as claimed in claim 1, wherein: the self-locking mechanism comprises a first connecting rod (31), a second connecting rod (32), a third connecting rod (33), an air cylinder (34), a first transmission shaft (35), an upper pawl (36), a lower pawl (37), a pawl mounting block (38) and a ratchet wheel (39), wherein the first connecting rod (31) is hinged to a push rod of the air cylinder (34), the third connecting rod (33) is hinged to the pawl mounting block (38), the first connecting rod (31) and the third connecting rod (33) are hinged to the second connecting rod (32), the upper pawl (36) and the lower pawl (37) are hinged to the pawl mounting block (38), the ratchet wheel (39) is mounted on the first transmission shaft (35) through a key, and the upper pawl (36) and the lower pawl (37) are in gear contact with the ratchet wheel (39).
6. The novel nursing bed with lifting and back-lifting functions as claimed in claim 5, wherein: the upper pawl (36), the lower pawl (37) and the ratchet wheel (39) form a self-locking mechanism; the sliding rail block (27) descends, the control system controls the cylinder (34) to start, the cylinder (34) pushes the third connecting rod (33) to move, the upper pawl (36) and the lower pawl (37) are separated from the gear teeth of the ratchet wheel (39), and the self-locking mechanism is unlocked; the sliding rail block (27) ascends or stops moving, the air cylinder (34) resets, the upper pawl (36) and the lower pawl (37) are in contact with the gear teeth of the ratchet wheel (39) again, the self-locking mechanism resets, and the first lead screw (21) and the first transmission shaft (35) are prevented from rotating reversely to cause damage to the motor; the self-locking mechanism is arranged in the cavity of the connecting box (13).
7. The novel nursing bed with lifting and back-lifting functions as claimed in claim 1, wherein: the back lifting mechanism comprises a worm wheel (41), a worm (42), a second transmission shaft (43), a back lifting block (44), a gear (45), a rack (46), a middle back plate (47) and a middle frame (48), wherein the worm wheel (41) is installed on the second transmission shaft (43) through a key, the worm (42) is connected with an output shaft of the reduction gearbox through a coupler, the back lifting block (44) is installed on the second transmission shaft (43) through a key, the back lifting block (44) is connected with the middle frame (48) through a bolt, the gear (45) is installed on the second transmission shaft (43) through a key, and the rack (46) is fixed on the lower end face of the middle back plate (47) through a bolt.
8. The novel nursing bed with lifting and back-lifting functions as claimed in claim 7, wherein: the worm wheel (41) and the worm (42) form a self-locking mechanism, so that the situation that the motor shaft rotates reversely to cause motor damage due to overlarge backward leaning force of a user is prevented; the second transmission shaft (43) rotates to drive the back lifting block (44) to rotate, and the back lifting block (44) drives the middle frame (48) to rotate so as to realize the reverse rotation of the middle back plate (47); the middle back plate (47) slides up and down along the length direction of the middle frame (48); the gear (45) and the rack (46) form a gear-rack transmission mechanism; the second transmission shaft (43) rotates to drive the gear (45) to rotate, the rack (46) moves upwards along the middle frame (48), and the rack (46) drives the middle back plate (47) to move upwards so as to prevent the back of a user from being extruded and injured when the back of the user is lifted; the back lifting mechanisms are arranged on the left side and the right side of the middle frame (48).
9. The novel nursing bed with lifting and back-lifting functions as claimed in claim 1, wherein: the sideslip prevention mechanism comprises a second lead screw (501), a second nut (502), a second lead screw fixing seat (503), a lead screw box (504), a fourth connecting rod (505), a fifth connecting rod (506), a first hinge support (507), a second hinge support (508), a left back plate (509), a right back plate (510), a left frame (511), a right frame (512), a hinge (513), a first chain wheel (514), a second chain wheel (515) and a chain (516), wherein the lead screw box (504) is connected with the middle frame (48) through the fifth connecting rod (506), the second lead screw fixing seat (503) is fixed on the inner wall of the lead screw box (504) through bolts, the second lead screw (501) is in rotating fit with the second lead screw fixing seat (503) through a bearing, the second nut (502) is sleeved on the second lead screw (501), the first hinge support (507) is fixed on the upper end face of the second nut (502) through bolts, and the fourth connecting rod (505) is hinged with the first hinge support (507), the fourth connecting rod (505) is hinged to the second hinged support (508), the second hinged support (508) is fixed to the lower end face of the left back plate (509) or the right back plate (510) through bolts, the left back plate (509) is fixed to the left frame (511), the right back plate (510) is fixed to the right frame (512), the left frame (511) and the right frame (512) are connected with the middle frame (48) through hinges (513), the first chain wheel (514) is installed on the second lead screw (501) through a key, and the second chain wheel (515) is installed on the output shaft of the motor through a key.
10. The novel nursing bed with lifting and back-lifting functions as claimed in claim 9, wherein: the lead screw box (504) is parallel to the middle frame (48), and the distance is kept constant; threads are arranged at two ends of the second lead screw (501), are both trapezoidal threads, and have self-locking capacity; threads at two ends of the second lead screw (501) are reverse; the second nut (502) moves along the second lead screw (501); the second nuts (502) are symmetrically arranged at two ends of the second lead screw (501); the second screw rod (501) rotates to drive the second nut (502) to move towards opposite directions respectively; the second nut (502) pushes the fourth connecting rod (505) to rotate through the first hinged support (507), and the fourth connecting rod (505) drives the left back plate (509) or the right back plate (510) to rotate inwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920170290.2U CN209984480U (en) | 2019-01-31 | 2019-01-31 | Novel nursing bed with lifting and back lifting functions |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281696A (en) * | 2020-03-06 | 2020-06-16 | 中国人民解放军总医院 | Recovered intelligent electric sickbed of using of abdominal operation |
| CN112569065A (en) * | 2021-01-04 | 2021-03-30 | 江苏省肿瘤防治研究所（江苏省肿瘤医院） | Anesthesia department is with man-machine interaction device that can alleviate patient's mood based on thing networking |
| CN112618196A (en) * | 2021-01-25 | 2021-04-09 | 徐金涛 | Adjustable multifunctional sickbed |
| CN113101173A (en) * | 2021-04-21 | 2021-07-13 | 佳木斯大学 | Rehabilitation medical bed and operation method |
| CN116370219A (en) * | 2023-06-01 | 2023-07-04 | 内蒙古工业大学 | Multifunctional intelligent nursing bed |
-
2019
- 2019-01-31 CN CN201920170290.2U patent/CN209984480U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281696A (en) * | 2020-03-06 | 2020-06-16 | 中国人民解放军总医院 | Recovered intelligent electric sickbed of using of abdominal operation |
| CN112569065A (en) * | 2021-01-04 | 2021-03-30 | 江苏省肿瘤防治研究所（江苏省肿瘤医院） | Anesthesia department is with man-machine interaction device that can alleviate patient's mood based on thing networking |
| CN112569065B (en) * | 2021-01-04 | 2022-05-20 | 江苏省肿瘤防治研究所（江苏省肿瘤医院） | Anesthesia branch of academic or vocational study is with man-machine interaction device that can alleviate patient's mood based on thing networking |
| CN112618196A (en) * | 2021-01-25 | 2021-04-09 | 徐金涛 | Adjustable multifunctional sickbed |
| CN113101173A (en) * | 2021-04-21 | 2021-07-13 | 佳木斯大学 | Rehabilitation medical bed and operation method |
| CN113101173B (en) * | 2021-04-21 | 2022-05-13 | 佳木斯大学 | Rehabilitation medical bed and operation method |
| CN116370219A (en) * | 2023-06-01 | 2023-07-04 | 内蒙古工业大学 | Multifunctional intelligent nursing bed |
| CN116370219B (en) * | 2023-06-01 | 2023-08-22 | 内蒙古工业大学 | Multifunctional intelligent nursing bed |
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