CN109200454B

CN109200454B - Paediatrics skin disease department medicator

Info

Publication number: CN109200454B
Application number: CN201811072321.7A
Authority: CN
Inventors: 申桂芝; 李敏; 张秀玲; 谢彩燕
Original assignee: Qingdao Women and Childrens Hospital
Current assignee: Qingdao Women and Childrens Hospital
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2021-02-12
Anticipated expiration: 2038-09-14
Also published as: CN109200454A

Abstract

The invention relates to an applicator, in particular to an applicator for the affected part of pediatric skin diseases. Therefore, the technical problem of the present invention is to provide an applicator that can prevent the ointment from contacting the skin of children, prevent bacterial residues from affecting the next use, and can replace the manual application of the ointment evenly on the affected area of pediatric skin diseases. Technical scheme: an applicator for pediatric dermatological areas, comprising a base plate, a vertical rod, a sliding sleeve, a first spring, a pressure roller, a push plate, etc.; a vertical rod is installed in the middle of the top of the base plate, and a sliding sleeve is arranged on the vertical rod , a first spring is connected between the bottom of the sliding sleeve and the top of the bottom plate. In the present invention, by fixing the ointment in the through hole, the knob can be turned to move the pressing roller downward to extrude the ointment, and then the device can be moved to apply the ointment on the affected part of the child by wiping cotton, so that the ointment does not need to be applied by hand. Smearing, and through the rolling device, the ointment can be more evenly spread on the affected area of the child, and it can also avoid the contact between the ointment and the affected area of the child, and the residual bacteria will affect the next use.

Description

Paediatrics skin disease department medicator

Technical Field

The invention relates to an applicator, in particular to an applicator for a pediatric dermatosis.

Background

Child likes playing everywhere often in daily life, it is more local to walk to the mosquito leads to skin to be bitten easily and appears the dermatosis, in order to avoid the more quick cure of dermatosis, can paint the ointment on the affected part, medical personnel hold the ointment usually and paint on child's affected part, the ointment is direct and child skin contact, lead to the bacterium to remain on the ointment easily, just also lead to the bacterial infection when using next time, and in order to make the ointment more even, need paint the ointment with the hand, consume the manpower, so medical personnel can paint the child affected part with the cotton swab good ointment, complicated influence work efficiency of so operation.

Disclosure of Invention

In order to overcome the defects that bacteria are easy to remain on the ointment when the ointment is directly contacted with the skin of a child, the bacteria are infected when the ointment is used next time, the ointment is required to be uniformly smeared by hands, and the labor is consumed, the technical problem of the invention is as follows: the paediatrics skin disease applicator can avoid contact between the ointment and the skin of a child, prevent bacteria residue from influencing the next use, and can replace manual work to apply the ointment uniformly.

The technical scheme is as follows: an applicator for pediatric skin disease treatment comprises a base plate, a vertical rod, a sliding sleeve, a first spring, a compression roller, a push plate, a first guide wheel, a 7-shaped plate, a first pull wire, a first bearing seat, a first rotating shaft, a knob, a first reel, an L-shaped plate, a threaded block, a sliding block, a second spring, a screw rod, a movable plate, a third spring and wiping cotton, wherein the vertical rod is installed in the middle of the top of the base plate, the sliding sleeve is arranged on the vertical rod, the first spring is connected between the bottom of the sliding sleeve and the top of the base plate and sleeved on the vertical rod, the compression roller is installed in the middle of the left side surface of the sliding sleeve, the 7-shaped plate is installed on the right side of the top of the base plate, the first bearing seat is installed on the upper portion of the 7-shaped plate in an embedded manner, the first rotating shaft is installed in the first bearing seat, the knob is installed at the left, the left side of the L-shaped plate is provided with a wire guide hole, the right side of the top of the bottom plate is provided with a guide groove, the left side of the bottom in the guide groove and the lower part of the left side surface in the 7-shaped plate are both provided with a first guide wheel, the tail end of a first pull wire passes through the wire guide hole and bypasses the first guide wheel to be connected with the right side of the bottom of the sliding sleeve, the left side of the bottom plate is provided with a through hole, the inner side surface of the through hole is provided with a threaded block, the left side of the top of the bottom plate is provided with a sliding groove, a sliding block is arranged in the sliding groove and is in sliding fit with the sliding groove, a second spring is connected between the lower part of the right side surface of the sliding block and the right side of the sliding groove, the middle of the top of the sliding block is provided with a push plate, the push plate, the left side of the bottom of the movable plate is embedded with a wiping cotton.

In a preferred embodiment of the invention, the clamping device comprises a push block, a fourth spring, a cross rod, a guide sleeve, a ratchet, a fifth spring and a ratchet wheel, wherein a through groove is formed in the left side of the top in the 7-shaped plate, the cross rod is arranged between the left side face and the right side face in the through groove, the guide sleeve is arranged on the cross rod, the sleeve is arranged in the middle of the bottom of the guide sleeve, the ratchet is arranged in the sleeve, the fifth spring is connected between the top end of the ratchet and the top in the sleeve, an installation groove is formed in the left side of the top outside the 7-shaped plate, the push block is arranged in the installation groove, the right side of the bottom of the push block is connected with the top of the guide sleeve, the fourth spring.

In a preferred embodiment of the invention, the rolling device comprises a swing rod, a second guide wheel, a second stay wire, a second bearing seat, a second rotating shaft, a volute spring, a ring, a sponge roller, a second reel, a disk, a third bearing seat and a third rotating shaft, wherein the second bearing seat is embedded on the left side of the bottom plate, the second bearing seat is positioned on the right side of the through hole, the second rotating shaft is installed in the second bearing seat, the disk is installed at the bottom end of the second rotating shaft, the ring is arranged on the outer side of the disk, the third bearing seats are embedded on the circumferential direction of the inner side surface of the ring and the circumferential direction of the outer side surface of the disk at uniform intervals, the third rotating shaft is connected between the ring and two corresponding third bearing seats on the disk, the sponge roller is installed in the middle of the third rotating shaft, the volute spring is arranged between the, the second reel is wound with a second stay wire, the lower part of the right side surface of the bottom plate is provided with a second guide wheel, the upper part of the right side surface outside the L-shaped plate is rotatably provided with a swing rod, and the tail end of the second stay wire is connected with the right side of the bottom of the swing rod by winding around the second guide wheel.

Firstly, medical staff rotates ointment to be fixed in a through hole through a thread block, a compression roller is in contact with a rocker, the screw is twisted to move inwards, the screw moves inwards to push a sliding block to move inwards, a second spring is compressed, the sliding block moves inwards to drive a push plate to move inwards, when the push plate moves inwards to be in contact with the ointment, the screw stops rotating, the medical staff can hold 7 templates to enable wiping cotton to be in contact with the affected part of a child, then a thumb is used for stirring a knob to rotate reversely, the knob rotates reversely to drive a first rotating shaft to rotate reversely, the first rotating shaft rotates reversely to drive a first reel to rotate, the first reel rotates reversely to drive a sliding sleeve to move downwards through a first pull wire, the first spring is compressed, the sliding sleeve moves downwards to drive the compression roller to move downwards, the compression roller moves downwards to extrude the ointment, the ointment is in contact with the affected part of the child, the medical staff, due to the action of the third spring, the wiping cotton can be always contacted with the affected part of the child for smearing. After the ointment is smeared in the child affected part, can loosen the knob, because of the effect of first spring, the sliding sleeve rebound drives the pressure roller rebound and resumes to the normal position, simultaneously, still drives first reel corotation through first acting as go-between and resumes to the normal position, puts down this device can from the child affected part. So relapse, can paint the ointment to child's affected part, when the ointment used up the back, operating personnel can wrench movement screw rod outwards removal, because of the effect of second spring, the slider moves left and drives the push pedal and move left and resume to the normal position, stops wrench movement screw rod, can rotate the ointment and break away from in the through-hole.

When medical personnel stirred the knob reversal and made the compression roller move down and extrude the ointment, first pivot reversal drove the ratchet reversal simultaneously, and the ratchet reversal slides on the ratchet, and after the ointment was paintd in child's affected part, medical personnel can loosen the knob, and then the ratchet blocked the ratchet, and then fixed with first pivot, because of the effect of fifth spring, the ratchet was always engaged with the ratchet contact, just also was fixed with the compression roller. When medical care personnel need to paint the ointment on the affected part of the child, the knob is turned over again. After the ointment is used up, the pushing block can be pushed to move rightwards, the fourth spring is compressed, the pushing block moves rightwards to drive the guide sleeve to move rightwards, the guide sleeve moves rightwards to drive the sleeve to move rightwards, the sleeve moves rightwards to drive the ratchet teeth to move rightwards, the ratchet teeth move rightwards and are not meshed with the ratchet wheel, the sliding sleeve moves upwards to drive the pressing roller to move upwards to return to the original position under the action of the first spring, the first rotating shaft is driven to rotate forwards to return to the original position, then the pushing block is loosened, the pushing block moves leftwards to drive the guide sleeve to move leftwards under the action of the. So, need not medical personnel and stir knob many times and make the compression roller remove to the position of last time and extrude the ointment, convenient and fast.

When medical personnel removed this device and scribble the ointment in child affected part, sponge cylinder and child affected part contact, can stimulate the pendulum rod rebound, the pendulum rod rebound passes through second stay cord pulling second reel reversal, second reel reversal drives the second pivot reversal, the scroll spring is tensile, second pivot reversal drives the disc reversal, the disc reversal drives the sponge cylinder reversal through the third pivot, loosen the pendulum rod again, the second stay cord is relaxed, because of the effect of scroll spring, second pivot corotation drives the disc corotation, so relapse, the continuous positive and negative rotation in turn of sponge cylinder can be with more even scribbling of ointment on child affected part. After the ointment is applied to the affected part of the child, the swinging rod can be stopped to be pulled. Therefore, the ointment can be uniformly smeared on the affected part of the child, and bacterial infection caused by the residual ointment and the affected part of the child in the next use can be avoided.

According to the invention, the ointment is fixed in the through hole, the knob can be stirred to enable the compression roller to move downwards to extrude the ointment, then the device is moved to apply the ointment to the affected part of the child through the wiping cotton, so that the ointment is not required to be applied by hands, the ointment can be more uniformly applied to the affected part of the child through the rolling device, the influence of bacteria remained when the ointment is in contact with the affected part of the child on the next use can be avoided, and medical staff can be prevented from stirring the knob to move to the last time position for several times due to the upward movement of the compression roller through the clamping device.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is an enlarged schematic view of part a of the present invention.

Fig. 3 is an enlarged view of part B of the present invention.

Fig. 4 is a schematic top view of a rolling device according to the present invention.

In the figure: 1. a bottom plate, 2, a vertical rod, 3, a sliding sleeve, 4, a first spring, 5, a compression roller, 6, ointment, 7, a push plate, 8, a guide groove, 9, a first guide wheel, a 10.7 template, 11, a first pull wire, 12, a first bearing seat, 13, a first rotating shaft, 14, a knob, 15, a first reel, 16, an L template, 17, a wire guide hole, 18, a through hole, 19, a threaded block, 20, a sliding groove, 21, a sliding block, 22, a second spring, 23, a threaded hole, 24, a screw rod, 25, a groove, 26, a movable plate, 27, a third spring, 28, a wiping cotton, 29, a clamping device, 291, an installation groove, 292, a pushing block, 293, a fourth spring, 294, a through groove, 295, a cross rod, 296, a guide sleeve, 297, a sleeve, 298, a ratchet, 299, a fifth spring, 2910, a ratchet wheel, 30, a rolling device, 301, 302, a second guide wheel, 303, a second pull wire, 304, 305. a second rotating shaft, 306, a spiral spring, 307, a ring, 308, a sponge roller, 309, a second reel, 3010, a disc, 3011, a third bearing seat, 3012, and a third rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

An applicator for affected parts of pediatric dermatosis, as shown in figures 1-4, comprises a base plate 1, a vertical rod 2, a sliding sleeve 3, a first spring 4, a compression roller 5, a push plate 7, a first guide wheel 9, a 7-shaped plate 10, a first pull wire 11, a first bearing seat 12, a first rotating shaft 13, a knob 14, a first reel 15, an L-shaped plate 16, a thread block 19, a sliding block 21, a second spring 22, a screw rod 24, a movable plate 26, a third spring 27 and a wiping cotton 28, wherein the vertical rod 2 is installed in the middle of the top of the base plate 1, the sliding sleeve 3 is arranged on the vertical rod 2, the first spring 4 is connected between the bottom of the sliding sleeve 3 and the top of the base plate 1, the first spring 4 is sleeved on the vertical rod 2, the compression roller 5 is installed in the middle of the left side surface of the sliding sleeve 3, the 7-shaped plate 10 is installed on the right side of the, a knob 14 is arranged at the left end of a first rotating shaft 13, a first reel 15 is arranged at the right part of the first rotating shaft 13, a first pull wire 11 is wound on the first reel 15, an L-shaped plate 16 is arranged between the left side of the top in a 7-shaped plate 10 and the upper part of the left side surface, a wire guide hole 17 is arranged at the left side of the L-shaped plate 16, a guide groove 8 is arranged at the right side of the top of a bottom plate 1, a first guide wheel 9 is arranged at the left side of the bottom in the guide groove 8 and the lower part of the left side surface in the 7-shaped plate 10, the tail end of the first pull wire 11 passes through the wire guide hole 17 and then is connected with the right side of the bottom of a sliding sleeve 3 by bypassing the first guide wheel 9, a through hole 18 is arranged at the left side of the bottom plate 1, a thread block 19 is arranged at the inner side surface of the through hole 18, a sliding groove 20 is, the push plate 7 is located on the left side of the compression roller 5, a threaded hole 23 is formed in the upper portion of the left side face of the bottom plate 1, the threaded hole 23 is communicated with the sliding groove 20, a screw rod 24 is arranged in the threaded hole 23, the right end of the screw rod 24 is in contact with the left side face of the sliding block 21, a groove 25 is formed in the left side of the bottom plate 1, a movable plate 26 is rotatably mounted on the right side face in the groove 25, a third spring 27 is connected between the middle of the top of the movable plate 26 and the left side.

Example 2

The novel flat plate type clamping device is characterized by further comprising a clamping device 29, the clamping device 29 comprises a push block 292, a fourth spring 293, a cross rod 295, a guide sleeve 296, a sleeve 297, a ratchet 298, a fifth spring 299 and a ratchet 2910, a through groove 294 is formed in the left side of the inner top of the 7-shaped plate 10, the cross rod 295 is installed between the left side face and the right side face of the through groove 294, the guide sleeve 296 is arranged on the cross rod 295, the sleeve 297 is installed in the middle of the bottom of the guide sleeve 296, the ratchet 298 is arranged in the sleeve 297, the fifth spring 299 is connected between the top end of the ratchet 298 and the inner top of the sleeve 297, an installation groove 291 is formed in the left side of the outer top of the 7-shaped plate 10, the push block 292 is arranged in the installation groove 291, the right side of the bottom of the push block 292 is connected with the top of the.

Example 3

The rolling device 30 further comprises a rolling device 30, the rolling device 30 comprises a swing rod 301, a second guide wheel 302, a second pull wire 303, a second bearing seat 304, a second rotating shaft 305, a volute spring 306, a circular ring 307, a sponge roller 308, a second reel 309, a disc 3010, a third bearing seat 3011 and a third rotating shaft 3012, the second bearing seat 304 is installed on the left side of the bottom of the base plate 1 in an embedded mode, the second bearing seat 304 is located on the right side of the through hole 18, the second rotating shaft 305 is installed in the second bearing seat 304, the disc 3010 is installed at the bottom end of the second rotating shaft 305, the circular ring 307 is arranged on the outer side of the disc 3010, the third bearing seats 3011 are installed in an embedded mode, the inner side face of the circular ring 307 and the outer side face of the disc 3010 are evenly spaced in the circumferential direction, the third rotating shaft 3012 is connected between the two corresponding third bearing seats 3011 on the circular ring 307 and the disc 3010, the sponge roller 308, a second reel 309 is installed in the middle of the second rotating shaft 305, a second pull wire 303 is wound on the second reel 309, a second guide wheel 302 is installed on the lower portion of the right side face of the bottom plate 1, a swing rod 301 is installed on the upper portion of the outer right side face of the L-shaped plate 16 in a rotating mode, and the tail end of the second pull wire 303 is connected with the right side of the bottom of the swing rod 301 in a manner of winding the second guide wheel 302.

Firstly, medical staff rotates an ointment 6 to be fixed in a through hole 18 through a thread block 19, a compression roller 5 is in contact with a rocker, then a screw rod 24 is twisted to move inwards, the screw rod 24 moves inwards to push a sliding block 21 to move inwards, a second spring 22 is compressed, the sliding block 21 moves inwards to drive a push plate 7 to move inwards, when the push plate 7 moves inwards to be in contact with the ointment 6, the screw rod 24 stops rotating, the medical staff can hold a 7-shaped plate 10 to enable a wiping cotton 28 to be in contact with the affected part of a child, then a thumb is used for poking a knob 14 to rotate reversely, the knob 14 rotates reversely to drive a first rotating shaft 13 to rotate reversely, the first rotating shaft 13 rotates reversely to drive a first winding wheel 15 to rotate reversely, the first winding wheel 15 rotates reversely to drive a sliding sleeve 3 to move downwards through a first pull wire 11, the first spring 4 is compressed, the sliding sleeve 3 moves downwards to drive the compression roller 5 to move, medical personnel can remove this device and drive and wipe cotton 28 and remove, wipe cotton 28 and remove and paint ointment 6 on child's affected part, because of the effect of third spring 27, enable to wipe cotton 28 and paint with child's affected part contact always. After ointment 6 is smeared in the children affected part, knob 14 can be loosened, and because of the effect of first spring 4, sliding sleeve 3 upward movement drives pressure roller 5 upward movement and restores to the normal position, simultaneously, still drives first reel 15 corotation through first stay wire 11 and restores to the normal position, puts down this device can from the children affected part. So relapse, can paint ointment 6 to child's affected part, when ointment 6 used up the back, operating personnel can twist screw rod 24 and outwards remove, because of the effect of second spring 22, slider 21 moves left and drives push pedal 7 and move left and resume to the normal position, stops twisting screw rod 24, can rotate ointment 6 and break away from in the through-hole 18.

When medical personnel stir knob 14 and rotate reversely to enable compression roller 5 to move downwards to extrude ointment 6, first rotating shaft 13 rotates reversely and simultaneously drives ratchet 2910 to rotate reversely, ratchet 2910 rotates reversely to slide on ratchet 298, after the ointment 6 is applied to the affected part of a child, medical personnel can loosen knob 14, ratchet 298 clamps ratchet 2910, first rotating shaft 13 is fixed, ratchet 298 is always in contact engagement with ratchet 2910 under the action of fifth spring 299, and compression roller 5 is fixed. When medical care personnel need to apply the ointment 6 on the affected part of the child, the knob 14 is turned over again. When the ointment 6 is used up, the pushing block 292 is pushed to move rightwards, the fourth spring 293 is compressed, the pushing block 292 moves rightwards to drive the guide sleeve 296 to move rightwards, the guide sleeve 296 moves rightwards to drive the sleeve 297 to move rightwards, the sleeve 297 moves rightwards to drive the ratchet 298 to move rightwards, the ratchet 298 moves rightwards without being meshed with the ratchet 2910, due to the action of the first spring 4, the sliding sleeve 3 moves upwards to drive the pressing roller 5 to move upwards to return to the original position, further the first rotating shaft 13 is driven to rotate forwards to return to the original position, then the pushing block 292 is released, and due to the action of the fourth spring 293, the pushing block 292 moves leftwards to drive the guide sleeve 296 to move left. Therefore, medical staff do not need to stir the knob 14 for multiple times to move the compression roller 5 to the last time position to extrude the ointment 6, and the ointment extruding machine is convenient and fast.

When medical personnel move this device and paint ointment 6 in the children affected part, sponge cylinder 308 contacts with the children affected part, can stimulate pendulum rod 301 upswing, pendulum rod 301 upswing stimulates second reel 309 through the second 303 of acting as go-between and reverses, second reel 309 reverses and drives second pivot 305 and reverses, spiral spring 306 stretches, second pivot 305 reverses and drives disc 3010 and reverses, disc 3010 reverses and drives sponge cylinder 308 through third pivot 3012 and reverses, loosen pendulum rod 301 again, second act as go-between 303 is loosened, because of the effect of spiral spring 306, second pivot 305 corotation drives disc 3010 corotation, so relapse, the continuous positive and negative rotation in turn of sponge cylinder 308 can be more even paint ointment 6 on the children affected part. After the ointment 6 is applied to the affected part of the child, the swinging rod 301 can be stopped to be pulled. Therefore, the ointment 6 can be uniformly applied to the affected part of the child, and bacterial infection caused by the residual ointment 6 and the affected part of the child in the next use can be avoided.

The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.

Claims

1. An applicator for pediatric skin disease treatment comprises a bottom plate (1), a vertical rod (2), a sliding sleeve (3), a first spring (4), a compression roller (5), a push plate (7), a first guide wheel (9) and 7 type plates (10), wherein the vertical rod (2) is installed in the middle of the top of the bottom plate (1), the sliding sleeve (3) is arranged on the vertical rod (2), the first spring (4) is connected between the bottom of the sliding sleeve (3) and the top of the bottom plate (1), the first spring (4) is sleeved on the vertical rod (2), the compression roller (5) is installed in the middle of the left side surface of the sliding sleeve (3), the 7 type plates (10) are installed on the right side of the top of the bottom plate (1), a guide groove (8) is formed in the right side of the top of the bottom of the guide groove (8) and the lower portion of the left side surface of the bottom of the 7 type plates, the novel sliding sleeve structure is characterized by further comprising a first pull wire (11), a first bearing seat (12), a first rotating shaft (13), a knob (14), a first reel (15), an L-shaped plate (16), a thread block (19), a sliding block (21), a second spring (22), a screw (24), a movable plate (26), a third spring (27) and wiping cotton (28), wherein the first bearing seat (12) is installed on the upper portion of the 7-shaped plate (10) in an embedded mode, the first rotating shaft (13) is installed in the first bearing seat (12), the knob (14) is installed at the left end of the first rotating shaft (13), the first reel (15) is installed at the right portion of the first rotating shaft (13), the first pull wire (11) is wound on the first reel (15), the L-shaped plate (16) is installed between the left side of the top of the 7-shaped plate (10) and the upper portion of the left side face, a wire guide hole (17) is formed in the left side of the L-shaped plate (16), the tail end of the first pull wire (11, a through hole (18) is formed in the left side of the bottom plate (1), a thread block (19) is installed on the inner side surface of the through hole (18), a sliding groove (20) is formed in the left side of the top of the bottom plate (1), a sliding block (21) is arranged in the sliding groove (20), the sliding block (21) is in sliding fit with the sliding groove (20), a second spring (22) is connected between the lower portion of the right side surface of the sliding block (21) and the right side of the sliding groove (20), a push plate (7) is installed in the middle of the top of the sliding block (21), a threaded hole (23) is formed in the upper portion of the left side surface of the bottom plate (1), the threaded hole (23) is communicated with the sliding groove (20), a screw rod (24) is arranged in the threaded hole (23), the right end of the screw rod (24) is in contact with the left side surface of the sliding block (21), a groove (25), the left side of the bottom of the movable plate (26) is embedded with a wiping cotton (28).

2. The pediatric skin disease applicator according to claim 1, further comprising a clamping device (29), wherein the clamping device (29) comprises a pushing block (292), a fourth spring (293), a cross bar (295), a guide sleeve (296), a sleeve (297), a ratchet (298), a fifth spring (299) and a ratchet wheel (2910), a through groove (294) is formed in the left side of the inner top of the 7-shaped plate (10), the cross bar (295) is installed between the left side face and the right side face of the inner side of the through groove (294), the guide sleeve (296) is arranged on the cross bar (295), the sleeve (297) is installed in the middle of the bottom of the guide sleeve (296), the ratchet (298) is arranged in the sleeve (297), the fifth spring (299) is connected between the top end of the ratchet (298) and the inner top of the sleeve (297), a mounting groove (291) is formed in the left side of the outer top of the 7-shaped plate (10), the pushing block (292) is, a fourth spring (293) is connected between the middle part of the right side surface of the push block (292) and the middle part of the right side of the mounting groove (291), a ratchet wheel (2910) is mounted at the right end of the first rotating shaft (13), and the ratchet wheel (2910) is positioned below the ratchet (298) and meshed with the ratchet wheel.

3. The pediatric skin disease applicator according to claim 2, further comprising a rolling device (30), wherein the rolling device (30) comprises a swing rod (301), a second guide wheel (302), a second pull wire (303), a second bearing seat (304), a second rotating shaft (305), a volute spring (306), a ring (307), a sponge roller (308), a second reel (309), a disc (3010), a third bearing seat (3011) and a third rotating shaft (3012), the second bearing seat (304) is embedded in the left side of the bottom of the base plate (1), the second bearing seat (304) is located on the right side of the through hole (18), the second rotating shaft (305) is installed in the second bearing seat (304), the disc (3010) is installed at the bottom end of the second rotating shaft (305), the ring (307) is installed on the outer side of the disc (3010), the third bearing seat (3011) is installed in the embedded type where the circumferential direction of the inner side face of the ring (307) and the circumferential direction of the outer side face of the, all be connected with third pivot (3012) between two third bearing seats (3011) that correspond on ring (307) and disc (3010), third pivot (3012) mid-mounting has sponge cylinder (308), be equipped with spiral spring (306) between second pivot (305) upper portion and bottom plate (1) bottom, second pivot (305) mid-mounting has second reel (309), it draws line (303) to wind the second on second reel (309), second leading wheel (302) are installed to bottom plate (1) right flank lower part, pendulum rod (301) are installed to the outer right flank upper portion rotary type of L template (16), second draws line (303) tail end to be connected with pendulum rod (301) bottom right side around second leading wheel (302).