Skin medicine applying nursing instrument for dermatology department

Abstract

The invention relates to the technical field of nursing instruments, and discloses a dermatological skin medicine applying nursing instrument which comprises a rotary smearing mechanism and two reciprocating medicine liquid driving mechanisms. According to the skin medicine applying nursing instrument for the dermatology department, the smearing wheel rotates by means of friction force between the smearing wheel and the skin, medicine can be discharged in a piston movement mode through power formed by rotation, and the discharged medicine can flow back to the surface of the smearing wheel to smear the medicine on the skin of a patient; according to the self-adaptive medicine smearing device, the medicine is prevented from being excessively discharged, so that the phenomenon of medicine waste caused by excessive medicine discharge is prevented, meanwhile, medicine flowing is started from friction force on different skin positions, medicine smearing can be achieved in a self-adaptive mode, and stable controllability is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of nursing instruments, in particular to a dermatology skin medication nursing instrument. Background Art

[0002] Many skin diseases are contagious. In order to make the drug absorbed by the skin faster during treatment, the method usually adopted is to apply ointment directly to the affected area. The existing method is to squeeze the ointment on the affected area and then apply it by hand. This operation is very troublesome, time-consuming and labor-intensive, and is prone to cross-infection, which brings inconvenience to medical staff. In particular, it is difficult to apply medicine to body parts such as the back and waist that cannot be directly touched by hand. If others are asked to help apply the medicine, cross-infection may occur.

[0003] To this end, a Chinese patent with publication number "CN108325060A" announced "A Dermatology Skin Medication Care Device", whose main structure includes a drug storage cartridge, a suction cup, a drug application module, a resistance module, a drug blocking module and a drug injection module. The drug storage cartridge is a cylinder with a cavity inside, and the drug storage cartridge is used to store the ointment to be applied; the suction cup is installed at the bottom of the drug storage cartridge, and the drug storage cartridge can be horizontally fixed on the surface of an object through the suction cup; the drug application module is arranged on the drug storage cartridge, and the drug application module applies the ointment to the back skin by squeezing the back; the resistance module is used to prevent the ointment from overflowing too much due to excessive squeezing force on the back, causing waste; the drug blocking module is located in the drug application module, and the drug blocking module is used to prevent the ointment from flowing out when the ointment is not needed; the drug injection module is installed on the drug storage cartridge, and the drug injection module is used to add ointment to the drug storage cartridge.

[0004] However, when the above-mentioned dermatological skin medication care device is actually used, it utilizes the pressure relative to the patient's skin to squeeze the medicine out. This method will cause the medicine to be continuously discharged outward when the patient stays on the skin in a pressure manner, thereby causing waste of the medicine. In addition, during the application process, the pressure used to control the extrusion of the medicine by the patient or medical staff cannot be controlled more stably, and there is still a phenomenon of drug waste caused by excessive artificial pressure. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a dermatological skin medication care device, which relies on the friction between the applicator wheel and the skin to rotate the applicator wheel. The power generated by the rotation can discharge the medicine in the form of a piston motion. The discharged medicine can then flow back to the surface of the applicator wheel to apply the medicine to the patient's skin, thereby preventing the occurrence of medicine waste caused by excessive drug discharge. At the same time, the drug flow is started by the friction on different parts of the skin, so the medicine application can be achieved in an adaptive manner, with stable controllability, solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dermatological skin medication care instrument, comprising a liquid medicine storage shell with a liquid medicine storage cavity inside, a handheld bracket fixedly installed at the bottom of the liquid medicine storage shell, two pipeline mounting holes symmetrically arranged on the upper surface of the liquid medicine storage shell, and a liquid medicine injection channel arranged at the center of the upper surface of the liquid medicine storage shell, connected to the liquid medicine storage cavity and having a liquid valve installed inside, and also comprising a rotating smearing mechanism, inside of which is arranged a smearing wheel that can rub against the skin structure to produce a rolling effect and can discharge the liquid medicine from the inside to the outside, and symmetrically staggered smearing wheels arranged on both sides of the smearing wheel. The invention relates to a crankshaft with a rotating end and capable of realizing the flow of medicine inside, and two medicine flow channels which can be rotatably installed on the outer periphery of the crankshaft relative to the crankshaft and can realize the flow of medicine inside; and two reciprocating medicine drive mechanisms, wherein a cylindrical hollow body which is fixedly installed on the upper surface of the medicine storage shell and has a hollow structure inside is arranged inside, a piston body which is placed inside the cylindrical hollow body and can unidirectionally suck the medicine inside the medicine storage cavity into the inside of the cylindrical hollow body and unidirectionally discharge the medicine inside the cylindrical hollow body into the medicine flow channel when moving, and an axially movable rod which can make the piston body move axially with the rotation of the crankshaft.

[0007] Preferably, the rotating coating mechanism includes a coating wheel, a medicine liquid discharge chamber is arranged inside the coating wheel, a plurality of medicine liquid discharge ports connecting the external space and the medicine liquid discharge chamber are arranged on the circumferential surface of the coating wheel, two rotating ends of the coating wheel are respectively provided with a crankshaft integrally formed therewith, a No. 2 medicine liquid flow hole with one end in a closed state and the other end connecting to the medicine liquid discharge chamber is arranged inside the crankshaft, a No. 1 fixing sleeve is rotatably installed on the periphery of the shaft body near its core end through a mechanical sealing structure, a No. 1 medicine liquid flow chamber is arranged inside the No. 1 fixing sleeve, a No. 1 medicine liquid flow chamber is arranged inside the No. 1 fixing sleeve, a No. 1 medicine liquid flow hole connecting the No. 2 medicine liquid flow hole and the No. 1 medicine liquid flow chamber is arranged on the circumferential surface of the crankshaft, and a medicine liquid flow channel is respectively installed on the circumferential surfaces of the two No. 1 fixing sleeves.

[0008] Preferably, the positions of the two crankshafts when rotating are offset from each other.

[0009] Preferably, the structural radius of the outer circumferential surface of the smear wheel is larger than the rotation radius of the crankshaft when it rotates.

[0010] Preferably, the reciprocating liquid medicine driving mechanism comprises a cylindrical hollow body, the bottom end of the cylindrical hollow body is provided with a fixed plate structure which is an integral structure with the cylindrical hollow body and fixedly mounted on the upper surface of the liquid medicine storage shell, the interior of the cylindrical hollow body is provided with a liquid medicine compression chamber, the cylindrical hollow body is provided with a liquid medicine reservation chamber at the bottom end of the liquid medicine compression chamber, the bottom end of the cylindrical hollow body is provided with a liquid medicine inflow channel which is fixedly mounted inside the pipeline mounting hole and connected to the bottom end of the liquid medicine reservation chamber, and a No. 1 liquid one-way valve is installed inside the liquid medicine inflow channel, and a bendable liquid suction hose is fixedly mounted at the bottom end of the liquid inflow channel. The bottom end of the liquid hose is sleeved with a metal suction head that can move under its own gravity and can achieve the ability to suck in liquid medicine. The circumferential surface of the cylindrical hollow body is provided with a liquid medicine discharge channel that is an integral structure with it and connected to the circumferential surface of the liquid medicine reserved cavity. A No. 2 liquid one-way valve is installed inside the liquid medicine discharge channel. The cylindrical hollow body is provided with a rod body through-hole connected to the external space at the top end of the liquid medicine compression cavity. The cylindrical hollow body is provided with a piston body that can move axially along the liquid medicine compression cavity. The piston body is fixedly installed with an axially movable rod that passes through the rod body through-hole on the end face facing the rod body through-hole.

[0011] Preferably, the structural radius of the medicine liquid reservation cavity is smaller than the structural radius of the medicine liquid compression cavity.

[0012] Preferably, the liquid inlet of the No. 1 liquid one-way valve is close to the liquid suction hose and the liquid discharge port is close to the bottom end of the liquid medicine reserved cavity, and the liquid inlet of the No. 2 liquid one-way valve is close to the circumferential side of the liquid medicine reserved cavity and the liquid discharge port is close to the external space.

[0013] Preferably, it also includes two universal component connection mechanisms, which are internally provided with a No. 2 fixed sleeve placed on the periphery of the central horizontal axis of the crankshaft and capable of rotating relative to the crankshaft, a hemispherical outer shell located on one side of the No. 2 fixed sleeve and capable of moving with the No. 2 fixed sleeve, and a rotating ball head placed in the hemispherical outer shell and capable of rotating relative to the hemispherical outer shell, thereby driving the axial movable rod to move.

[0014] Preferably, the universal component connection mechanism includes a No. 2 fixing sleeve, the center of the No. 2 fixing sleeve is provided with a shaft body sleeve hole which is sleeved on the periphery of the central horizontal axis of the crankshaft, the circumferential side of the No. 2 fixing sleeve is provided with a connecting shaft structure which is an integral structure with it, the end of the connecting shaft structure is provided with a hemispherical shell which is an integral structure with it, the bottom of the hemispherical shell is provided with a hemispherical cavity with a concave structure and an open bottom end, a rotatable rotating ball head is arranged in the hemispherical shell inside the hemispherical cavity, the bottom area of ​​the rotating ball head is provided with a raised column structure which is an integral structure with it and protrudes downward, the bottom of the raised column structure is provided with a recessed structure and a component fixing groove for fixing and installing the end structure of the axial movable rod.

[0015] Preferably, the structural radius of the hemispherical cavity matches the structural radius of the rotating ball head, and the depth of the hemispherical cavity is greater than the structural radius of the rotating ball head and less than the structural diameter of the rotating ball head.

[0016] Compared with the prior art, the present invention provides a dermatology skin medication care device, which has the following

[0017] Beneficial effects:

[0018] 1. The friction between the smear wheel and the skin causes the smear wheel to rotate. The power generated by the rotation can discharge the medicine in the form of piston motion. The discharged medicine can flow back to the surface of the smear wheel to apply the medicine to the patient's skin, thereby preventing the occurrence of medicine waste caused by excessive drug discharge. At the same time, the flow of medicine is opened by the friction on different parts of the skin, so the medicine can be applied in an adaptive way with stable controllability.

[0019] 2. By setting a rotating application mechanism, the application wheel is brought into contact with the skin with a certain force, and then the handheld bracket is manipulated to make the application wheel roll on the skin where the medicine needs to be applied. At this time, due to the friction of the skin, the application wheel will roll, and the crankshaft will rotate at the same time, and the medicine liquid will flow to the patient's skin through the medicine liquid discharge port, thereby realizing the rolling medicine application function;

[0020] 3. By setting up a reciprocating liquid medicine driving mechanism, when the crankshaft rotates, the axial movable rod will drive the piston body to perform a reciprocating motion effect, so that the liquid inside the liquid medicine storage chamber is continuously drawn into the liquid medicine compression chamber, and then discharged from the liquid medicine compression chamber into the liquid medicine discharge chamber through the liquid medicine flow channel, and finally flows to the patient's skin through the liquid medicine discharge port, thereby utilizing the power of the crankshaft to realize the unidirectional driving function of the liquid medicine. At the same time, since the device needs to apply medicine to different parts, the position state of the liquid medicine inside the liquid medicine storage chamber will change, and the metal suction head can be immersed in the liquid medicine at all times as the gravity changes, thereby adapting to the drug application work at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0023] Figure 3 It is a three-dimensional diagram of the rotary coating mechanism of the present invention;

[0024] Figure 4 is a three-dimensional cross-sectional view of the rotary coating mechanism of the present invention;

[0025] Figure 5 It is a three-dimensional diagram of the reciprocating liquid medicine driving mechanism of the present invention;

[0026] Figure 6 It is a three-dimensional cross-sectional view of the reciprocating liquid medicine driving mechanism of the present invention;

[0027] Figure 7 It is a three-dimensional diagram of the universal component connection mechanism in the present invention;

[0028] Figure 8 It is a three-dimensional cross-sectional view of the universal component connection mechanism in the present invention.

[0029] Among them: 1. Liquid medicine storage shell; 2. Hand-held bracket; 3. Liquid medicine storage chamber; 4. Pipe mounting hole; 5. Liquid medicine injection channel; 6. Support frame; 7. Rotary coating mechanism; 71. Coating wheel; 72. Liquid medicine discharge chamber; 73. Liquid medicine discharge port; 74. Crankshaft; 75. No. 1 liquid medicine flow hole; 76. No. 2 liquid medicine flow hole; 77. No. 1 fixed sleeve; 78. No. 1 liquid medicine flow chamber; 79. Liquid medicine flow channel; 8. Reciprocating liquid medicine drive mechanism; 81. Columnar hollow body; 82. Fixed plate structure; 83. Liquid medicine compression cavity; 84, liquid medicine reserved cavity; 85, liquid medicine inflow channel; 86, liquid medicine discharge channel; 87, No. 1 liquid one-way valve; 88, No. 2 liquid one-way valve; 89, liquid suction hose; 810, metal suction head; 811, rod body perforation; 812, piston body; 813, axial movable rod; 9, universal component connection mechanism; 91, No. 2 fixing sleeve; 92, shaft body sleeve release hole; 93, connecting shaft structure; 94, hemispherical shell; 95, hemispherical cavity; 96, rotating ball head; 97, raised column structure; 98, component fixing groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 and Figure 2A dermatological skin medication care device comprises a medicine liquid storage shell 1 with a medicine liquid storage cavity 3 arranged inside, a handheld bracket 2 fixedly installed at the bottom of the medicine liquid storage shell 1, two pipe mounting holes 4 symmetrically arranged on the upper surface of the medicine liquid storage shell 1, and a medicine liquid injection channel 5 arranged at the center of the upper surface of the medicine liquid storage shell 1, connected to the medicine liquid storage cavity 3 and equipped with a liquid valve inside. An appropriate amount of medicine liquid is injected into the medicine liquid storage cavity 3 through the medicine liquid injection channel 5, and then the handheld bracket 2 is held to control the working state of the device to carry out the work of applying medicine.

[0032] To achieve rolling medication function, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , it is necessary to set up a rotating application mechanism 7, which is internally provided with an application wheel 71 that can mate with the skin structure to produce a rolling effect and can discharge the medicine from the inside out, a crankshaft 74 symmetrically and staggeredly arranged at the two rotating ends of the application wheel 71 and capable of realizing the flow of medicine, and two medicine flow channels 79 that can be rotatably installed relative to the crankshaft 74 on the periphery of the crankshaft 74 and capable of realizing the flow of medicine. The application wheel 71 is brought into contact with the skin with a certain force, and then the handheld bracket 2 is manipulated to make the application wheel 71 roll on the skin where medicine needs to be applied. At this time, due to the friction force on the skin, the application wheel 71 will roll, and at the same time, the crankshaft 74 will rotate, and the medicine will flow to the patient's skin through the medicine discharge port 73, thereby realizing the rolling medicine application function.

[0033] For the specific structure of the rotary application mechanism 7, please refer to Figure 3 and Figure 4 , including a coating wheel 71, wherein a liquid medicine discharge chamber 72 is arranged inside the coating wheel 71, and a plurality of liquid medicine discharge ports 73 are arranged on the circumferential surface of the coating wheel 71, which are connected to the external space and the liquid medicine discharge chamber 72, and the two rotating ends of the coating wheel 71 are respectively provided with a crankshaft 74 of an integral structure therewith, and a second liquid medicine flow hole 76 is arranged inside the crankshaft 74, one end of which is in a closed state and the other end is connected to the liquid medicine discharge chamber 72, and the crankshaft 74 is provided with a mechanical seal structure at the outer periphery of the shaft body near its core end so as to be able to A No. 1 fixed sleeve 77 is installed in a rotating manner, and a No. 1 liquid flow cavity 78 is arranged inside the No. 1 fixed sleeve 77. The circumferential surface of the crankshaft 74 is provided with a No. 1 liquid flow hole 75 connecting the No. 2 liquid flow hole 76 and the No. 1 liquid flow cavity 78. The circumferential surfaces of the two No. 1 fixed sleeves 77 are respectively installed with a liquid flow channel 79, and the positions of the two crankshafts 74 are misaligned with each other when rotating. The structural radius of the outer circumferential surface of the smear wheel 71 is larger than the rotation radius of the crankshaft 74 when rotating.

[0034] In order to utilize the power of the crankshaft 74 to realize the one-way driving function of the liquid medicine, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 , it is necessary to set up two reciprocating liquid medicine driving mechanisms 8, which are provided with a cylindrical hollow body 81 fixedly mounted on the upper surface of the liquid medicine storage housing 1 and having a hollow structure inside, a piston body 812 placed inside the cylindrical hollow body 81 and capable of unidirectionally sucking the liquid medicine inside the liquid medicine storage chamber 3 into the cylindrical hollow body 81 and unidirectionally discharging the liquid medicine inside the cylindrical hollow body 81 into the liquid medicine flow channel 79 when moving, and an axial movable rod 813 capable of making the piston body 812 axially move with the rotation of the crankshaft 74. When the crankshaft 74 rotates, the axial movable rod 813 drives the piston body 81 2 makes a reciprocating motion effect, so that the liquid in the liquid storage chamber 3 is continuously drawn into the liquid compression chamber 83, and then discharged from the liquid compression chamber 83 into the liquid discharge chamber 72 through the liquid flow channel 79, and finally flows to the patient's skin through the liquid discharge port 73, thereby utilizing the power of the crankshaft 74 to realize the unidirectional driving function of the liquid. At the same time, since the device needs to apply medicine to different parts, the position state of the liquid in the liquid storage chamber 3 will change, and the metal suction head 810 can be immersed in the liquid at all times with the change of gravity, so as to adapt to the drug application work at different angles.

[0035] For the specific structure of the reciprocating liquid medicine driving mechanism 8, please refer to Figure 5 and Figure 6, comprising a cylindrical hollow body 81, the bottom end of the cylindrical hollow body 81 is provided with a fixed plate structure 82 which is an integral structure with it and fixedly mounted on the upper surface of the liquid medicine storage shell 1, the interior of the cylindrical hollow body 81 is provided with a liquid medicine compression chamber 83, the cylindrical hollow body 81 is provided with a liquid medicine reservation chamber 84 at the bottom end of the liquid medicine compression chamber 83, the bottom end of the cylindrical hollow body 81 is provided with a liquid medicine inflow channel 85 which is fixedly mounted inside the pipeline mounting hole 4 and connected to the bottom end of the liquid medicine reservation chamber 84, and a No. 1 liquid one-way valve 87 is installed inside the liquid medicine inflow channel 85, the bottom end of the liquid inflow channel 85 is fixedly mounted with a bendable liquid suction hose 89, the bottom end of the liquid suction hose 89 is sleeved with a metal suction head 810 which can move under its own gravity and can achieve liquid medicine suction capability, the circumferential surface of the cylindrical hollow body 81 is provided with a fixed plate structure 82 which is an integral structure with it and connected to the liquid medicine A medicine liquid discharge channel 86 is provided on the circumferential surface of the liquid reservation chamber 84, and a No. 2 liquid one-way valve 88 is installed inside the medicine liquid discharge channel 86. The cylindrical hollow body 81 is provided with a rod body through hole 811 connected to the external space at the top end of the medicine liquid compression chamber 83. The cylindrical hollow body 81 is provided with a piston body 812 capable of axial movement along the medicine liquid compression chamber 83 inside the medicine liquid compression chamber 83. The piston body 812 is fixedly provided with an axial movable rod 813 passing through the rod body through hole 811 on the end face facing the rod body through hole 811. The structural radius of the medicine liquid reservation chamber 84 is smaller than the structural radius of the medicine liquid compression chamber 83. The liquid inlet of the No. 1 liquid one-way valve 87 is close to the liquid suction hose 89, and the liquid discharge port is close to the bottom end of the medicine liquid reservation chamber 84. The liquid inlet of the No. 2 liquid one-way valve 88 is close to the circumferential side of the medicine liquid reservation chamber 84, and the liquid discharge port is close to the external space.

[0036] In order to adapt to the angle change between the crankshaft 74 and the axial movable rod 813 during rotation, see Figure 1 , Figure 2 , Figure 7 and Figure 8 , it is necessary to set up two universal component connection mechanisms 9, inside which are arranged a second fixed sleeve 91 which is placed on the periphery of the central horizontal axis of the crankshaft 74 and can rotate relative to the crankshaft 74, a hemispherical shell 94 which is located on one side of the second fixed sleeve 91 and can move with the second fixed sleeve 91, and a rotating ball head 96 which is placed in the hemispherical shell 94 and can rotate relative to the hemispherical shell 94 and drive the axial movable rod 813 to move. When the crankshaft 74 rotates, its axis will reciprocate relative to the axis of the axial movable rod 813. At this time, the rotating ball head 96 will adaptively rotate inside the hemispherical shell 94, and the two will not be separated. Finally, the rotation of the crankshaft 74 will drive the axial movable rod 813 to move up and down reciprocatingly, thereby adapting to the angle change between the crankshaft 74 and the axial movable rod 813 when the crankshaft 74 rotates.

[0037] For the specific structure of the universal component connection mechanism 9, please refer to Figure 7 and Figure 8 , including a No. 2 fixing sleeve 91, the center of the No. 2 fixing sleeve 91 is provided with a shaft body sleeve hole 92 which is sleeved on the periphery of the central horizontal axis of the crankshaft 74, the circumferential side of the No. 2 fixing sleeve 91 is provided with a connecting shaft structure 93 which is an integral structure with it, the end of the connecting shaft structure 93 is provided with a hemispherical shell 94 which is an integral structure with it, the bottom of the hemispherical shell 94 is provided with a hemispherical cavity 95 with an inner concave structure and an open bottom end, and the hemispherical shell 94 is arranged inside the hemispherical cavity 95 A rotatable rotating ball head 96 is placed, and the bottom area of ​​the rotating ball head 96 is provided with a raised column structure 97 which is an integral structure with it and protrudes downward, and the bottom of the raised column structure 97 is provided with a concave structure and a component fixing groove 98 for fixing and installing the end structure of the axial movable rod 813, the structural radius of the hemispherical cavity 95 matches the structural radius of the rotating ball head 96, and the depth of the hemispherical cavity 95 is greater than the structural radius of the rotating ball head 96 and less than the structural diameter of the rotating ball head 96.

[0038] When in use, an appropriate amount of medicine liquid is injected into the medicine liquid storage chamber 3 through the medicine liquid injection channel 5, and then the handheld bracket 2 is held, the applicator wheel 71 is brought into contact with the skin with a certain force, and then the handheld bracket 2 is manipulated to make the applicator wheel 71 roll on the skin where medicine is needed. At this time, due to the friction on the skin, the applicator wheel 71 will roll, and the crankshaft 74 will rotate at the same time. When the crankshaft 74 rotates, the axial movable rod 813 will drive the piston body 812 to perform a reciprocating motion effect, so that the liquid inside the medicine liquid storage chamber 3 is continuously drawn into the interior of the medicine liquid compression chamber 83, and then discharged from the medicine liquid compression chamber 83 into the interior of the medicine liquid discharge chamber 72 through the medicine liquid flow channel 79, and finally flows to the patient's skin through the medicine liquid discharge port 73, thereby realizing the rolling medicine application function.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dermatology skin medication care device, comprising a liquid medicine storage shell (1) with a liquid medicine storage cavity (3) disposed therein, a handheld bracket (2) fixedly mounted on the bottom of the liquid medicine storage shell (1), two symmetrical pipe mounting holes (4) disposed on the upper surface of the liquid medicine storage shell (1), and a liquid medicine injection channel (5) disposed at the center of the upper surface of the liquid medicine storage shell (1), connected to the liquid medicine storage cavity (3) and having a liquid valve installed therein, characterized in that: Also includes, A rotating smear mechanism (7) is provided with a smear wheel (71) capable of rolling with the skin structure to discharge the medicine liquid from the inside to the outside, a crankshaft (74) symmetrically arranged at two rotating ends of the smear wheel (71) and capable of allowing the medicine liquid to flow therein, and two medicine liquid flow channels (79) rotatably mounted on the outer periphery of the crankshaft (74) relative to the crankshaft (74) and capable of allowing the medicine liquid to flow therein; and two reciprocating liquid medicine driving mechanisms (8), wherein a cylindrical hollow body (81) is fixedly mounted on the upper surface of the liquid medicine storage housing (1) and has a hollow structure inside, a piston body (812) is placed inside the cylindrical hollow body (81) and can unidirectionally suck the liquid medicine inside the liquid medicine storage chamber (3) into the cylindrical hollow body (81) and discharge the liquid medicine inside the cylindrical hollow body (81) into the liquid medicine flow channel (79) when in motion, and an axial movable rod (813) can make the piston body (812) move axially with the rotation of the crankshaft (74).

2. A dermatology skin medication care device according to claim 1, characterized in that: The rotary coating mechanism (7) comprises a coating wheel (71), a liquid medicine discharge chamber (72) is arranged inside the coating wheel (71), a plurality of liquid medicine discharge ports (73) communicating with an external space and the liquid medicine discharge chamber (72) are arranged on the circumferential surface of the coating wheel (71), a crankshaft (74) integrally formed with the coating wheel (71) is arranged at each of the two rotating ends, and a second liquid medicine flow passage is arranged inside the crankshaft (74) with one end being in a closed state and the other end communicating with the liquid medicine discharge chamber (72). The crankshaft (74) has a first fixing sleeve (77) rotatably mounted on the outer periphery of the shaft body near its core end through a mechanical sealing structure, a first liquid medicine flow chamber (78) is arranged inside the first fixing sleeve (77), a first liquid medicine flow hole (75) connecting the second liquid medicine flow hole (76) and the first liquid medicine flow chamber (78) is arranged on the circumferential surface of the crankshaft (74), and a liquid medicine flow channel (79) is respectively installed on the circumferential surfaces of the two first fixing sleeves (77) which are in contact with each other.

3. A dermatology skin medication care device according to claim 2, characterized in that: The positions of the two crankshafts (74) are offset from each other when they rotate.

4. A dermatology skin medication care device according to claim 3, characterized in that: The structural radius of the outer circumferential surface of the smear wheel (71) is greater than the rotation radius of the crankshaft (74) when it rotates.

5. A dermatology skin medication care device according to claim 4, characterized in that: The reciprocating liquid medicine driving mechanism (8) comprises a cylindrical hollow body (81), the bottom end of the cylindrical hollow body (81) is provided with a fixed plate structure (82) which is integrally structured with the cylindrical hollow body (81) and fixedly mounted on the upper surface of the liquid medicine storage housing (1), the inside of the cylindrical hollow body (81) is provided with a liquid medicine compression chamber (83), the bottom end of the cylindrical hollow body (81) is provided with a liquid medicine reservation chamber (84), the bottom end of the cylindrical hollow body (81) is provided with a liquid medicine inflow channel (85) which is fixedly mounted inside the pipeline mounting hole (4) and communicates with the bottom end of the liquid medicine reservation chamber (84), and a No. 1 liquid one-way valve (87) is installed inside the liquid medicine inflow channel (85), and a bendable liquid suction hose (89) is fixedly mounted at the bottom end of the liquid inflow channel (85), and the liquid suction hose (89) The bottom end of the cylindrical hollow body (81) is sleeved with a metal suction head (810) that can move under its own gravity and can achieve the ability to suck in liquid medicine. The circumferential surface of the cylindrical hollow body (81) is provided with a liquid medicine discharge channel (86) that is integrally structured with it and connected to the circumferential surface of the liquid medicine reserve chamber (84). A second liquid one-way valve (88) is installed inside the liquid medicine discharge channel (86). The cylindrical hollow body (81) is provided with a rod body through hole (811) that is connected to the external space at the top end of the liquid medicine compression chamber (83). The cylindrical hollow body (81) is provided with a piston body (812) that can move axially along the liquid medicine compression chamber (83) inside the liquid medicine compression chamber (83). The piston body (812) is fixedly installed with an axially movable rod (813) that passes through the rod body through hole (811) on the end surface facing the rod body through hole (811).

6. A dermatology skin medication care device according to claim 5, characterized in that: The structural radius of the medicine liquid pre-reservation chamber (84) is smaller than the structural radius of the medicine liquid compression chamber (83).

7. A dermatology skin medication care device according to claim 6, characterized in that: The liquid inlet of the No. 1 liquid one-way valve (87) is close to the liquid suction hose (89), and the liquid outlet is close to the bottom end of the liquid medicine reserved cavity (84); the liquid inlet of the No. 2 liquid one-way valve (88) is close to the circumferential side of the liquid medicine reserved cavity (84), and the liquid outlet is close to the external space.

8. The dermatological skin medication care device according to claim 7, characterized in that: The invention also comprises two universal component connection mechanisms (9), wherein a second fixing sleeve (91) is arranged on the periphery of the central transverse axis of the crankshaft (74) and can rotate relative to the crankshaft (74), a hemispherical outer shell (94) is located on one side of the second fixing sleeve (91) and can move with the second fixing sleeve (91), and a rotating ball head (96) is placed in the hemispherical outer shell (94) and can rotate relative to the hemispherical outer shell (94) and drive the axial movable rod (813) to move.

9. A dermatology skin medication care device according to claim 8, characterized in that: The universal component connection mechanism (9) comprises a second fixing sleeve (91), the center of the second fixing sleeve (91) is provided with a shaft body sleeve hole (92) sleeved on the periphery of the central transverse axis of the crankshaft (74), the circumferential side surface of the second fixing sleeve (91) is provided with a connecting shaft structure (93) integrally formed with the second fixing sleeve (91), the end of the connecting shaft structure (93) is provided with a hemispherical shell (94) integrally formed with the second fixing sleeve, and the bottom of the hemispherical shell (94) is provided with a concave The hemispherical cavity (95) has a hemispherical structure and an open bottom end, and the hemispherical shell (94) is provided with a rotatable rotating ball head (96) inside the hemispherical cavity (95). The bottom area of ​​the rotating ball head (96) is provided with a protruding column structure (97) which is integral with the structure and protrudes downward, and the bottom of the protruding column structure (97) is provided with a concave structure and a component fixing groove (98) for fixing and installing the end structure of the axial movable rod (813).

10. A dermatology skin medication care device according to claim 9, characterized in that: The structural radius of the hemispherical cavity (95) matches the structural radius of the rotating ball head (96), and the depth of the hemispherical cavity (95) is greater than the structural radius of the rotating ball head (96) and less than the structural diameter of the rotating ball head (96).

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