A kind of applying device for traditional Chinese medicine ointment external application

Abstract

The present application relates to the technical fields of traditional Chinese medicine external application, and discloses a coating device for traditional Chinese medicine ointment external application, which comprises a moving mechanism, a supporting variable speed mechanism, a switching mechanism, a coating mechanism and a counter pushing mechanism. The moving mechanism drives the coating mechanism to move along the coating direction. The coating mechanism is provided with a plurality of storage boxes for storing different traditional Chinese medicine ointments. The pressing plates in the storage boxes are pressed to discharge under the driving of the switching mechanism. The supporting variable speed mechanism changes the effective transmission radius through the first conical speed change wheel, the second conical speed change wheel, the second driving belt, the driving frame and the driving rod, so that the pressing plates of different storage boxes form different pressing strokes under the same moving distance. The counter pushing mechanism pushes the driving cover to act, and drives the blocking plate to change the opening degree through the driving column, the rotating shaft and the bevel gear transmission, so that the discharge gap is matched with the corresponding pressing stroke. The discharge opening of the storage box can also limit the effective discharge width through the external blocking strip, so as to adapt to the different layer dosages and different to-be-coated area widths when the multi-layer traditional Chinese medicine ointment is externally applied.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine external application technology, and in particular to an application device for applying traditional Chinese medicine ointments. Background Technology

[0002] Traditional Chinese medicine ointments are applied externally by applying a viscous ointment to the corresponding area of ​​the patient's skin, keeping the ointment in contact with the local area. Unlike ordinary skin ointments that are applied thinly in one application, when applying traditional Chinese medicine ointments to areas such as the shoulders, neck, knees, and lower back, some application methods require the sequential formation of an adhering layer, a main drug layer, and an outer covering layer in the same area to be applied. Each layer has a different function: the adhering layer focuses on contact with the skin, the main drug layer focuses on carrying the ointment dosage, and the outer covering layer focuses on covering the edge of the previous layer. Therefore, the required ointment dosage, spreading state, and boundary range of different layers on the same application path are not exactly the same.

[0003] Chinese patent document CN109350837A discloses a topical ointment application device, which uses a handheld part, a drug delivery part and an application head to work together. A motor drives a piston to push the ointment, and a broom-shaped fan-shaped application head and a soft scraper are used to complete the application of the topical ointment. Chinese patent document CN219878936U discloses an ointment application device, which uses a drug extrusion mechanism to deliver the drug into the drug outlet chamber, and then uses an application roller to roll on the skin surface to complete the large-area application. The above devices mainly focus on the extrusion, scraping or rolling of a single ointment to improve the inconvenience of direct manual application of medicine.

[0004] When applying multi-layered herbal ointments, operators usually need to continuously lay different layers of ointment within the same skin area, ensuring that the next layer covers the predetermined area of ​​the previous layer. If a single-discharge applicator or manual scraper is still used, it is difficult to distinguish the amount of ointment discharged along the same movement path. The smaller amount of the skin-adhering layer is prone to discontinuity due to unsuitable outlet conditions, while the larger amount of the main medicine layer is prone to local accumulation due to improper outlet and movement coordination. When the outer layer continues to be laid, it may also push the edge of the previous layer, making it difficult to maintain consistent layer boundaries and thickness.

[0005] To address the aforementioned problems, this application proposes an application device for external application of traditional Chinese medicine ointments. Summary of the Invention

[0006] This invention proposes a coating device for external application of traditional Chinese medicine ointments, which solves the problem in related technologies that it is difficult to match the output amount, output gap and effective coating width of different ointments when multiple layers of traditional Chinese medicine ointments are continuously applied on the same path.

[0007] This invention proposes an application device for external application of traditional Chinese medicine ointments, comprising: a moving mechanism for driving a coating mechanism to move along the coating direction; the coating mechanism including multiple storage boxes for storing different traditional Chinese medicine ointments, each storage box having a pressure plate slidably disposed therein, and two sealing plates movably disposed on the discharge side; a supporting speed-changing mechanism including a first conical speed-changing wheel and a second conical speed-changing wheel disposed opposite to each other, a second drive belt wound between the first and second conical speed-changing wheels, a drive frame for actuating the second drive belt, and a drive rod for driving the drive frame to move axially along the conical speed-changing wheel to change the effective transmission radius of the second drive belt; and a switching mechanism including a pressing frame for acting on the pressure plates, the pressing frame forming different pressing strokes for different pressure plates according to the change of the effective transmission radius; wherein, the opening of the sealing plate has a preset correspondence with the pressing stroke of the corresponding pressure plate, so that the storage box with a large pressing stroke corresponds to a larger discharge gap, and the storage box with a small pressing stroke corresponds to a smaller discharge gap.

[0008] As a further optimization of the present invention, the moving mechanism includes: a positioning box on which a drive motor is fixedly mounted; and a first screw rotatably mounted on the positioning box and fixedly connected to the power output shaft of the drive motor.

[0009] As a further optimization of the present invention, the moving mechanism further includes: a support box, which is slidably connected to the positioning box and threadedly connected to the first screw; a rack, which is fixedly installed inside the positioning box; a first rotating shaft, which is rotatably installed on the support box and has a first gear meshing with the rack fixedly installed on it; a third rotating shaft, which is rotatably installed on the support box and fixedly connected to the second conical gear reducer; and two first drive wheels, which are respectively fixedly installed on the first rotating shaft and the third rotating shaft and are connected by a first drive belt.

[0010] As a further optimization of the present invention, the supporting speed change mechanism further includes: a second rotating shaft, which is rotatably mounted on the support box and fixedly connected to the first conical speed change wheel; an electric push rod, which is fixedly mounted on the support box, and a rectangular column that is rotatably mounted on its telescopic end and slidably connected to the second rotating shaft; and a first gear plate, which is fixedly mounted on the rectangular column.

[0011] As a further optimization of the present invention, the switching mechanism further includes: a fourth rotating shaft, rotatably mounted on the support box, on which a switching box is fixedly mounted; a plurality of fifth rotating shafts, each rotatably mounted on the switching box, each with a second bevel gear fixedly mounted thereon; a plurality of fixed plates, each fixedly mounted on the switching box, each with a third screw rotatably mounted thereon; a plurality of threaded columns, each slidably connected to the switching box, threadedly connected to the third screw, and also fixedly connected to the pressure plate; a plurality of first bevel gears, each meshing with a plurality of second bevel gears, and fixedly connected to a plurality of the third screws; and a plurality of second gear discs, each fixedly mounted on a plurality of the fifth rotating shafts.

[0012] As a further optimization of the present invention, the supporting speed change mechanism further includes: a first spring, one end of which is fixedly connected to the support box and the other end of which is fixedly connected to the drive rod; the drive frame is fixedly connected to the drive rod, and the drive rod is slidably connected to the support box.

[0013] As a further optimization of the present invention, the switching mechanism further includes: a second screw, which is rotatably mounted on the switching box and threadedly connected to the extrusion frame.

[0014] As a further optimization of the present invention, the coating mechanism further includes: a fixed box, fixedly installed inside the storage box; a sixth rotating shaft, rotatably connected to the fixed box and the storage box, on which a connecting plate fixedly connected to the sealing plate is fixedly installed; a seventh rotating shaft, rotatably connected to the fixed box and the storage box, on which a connecting plate fixedly connected to the sealing plate is also fixedly installed; a third bevel gear, fixedly installed on the sixth rotating shaft; a fifth bevel gear, fixedly installed on the seventh rotating shaft; and two eighth rotating shafts, both rotatably installed on the fixed box, each on which a fourth bevel gear meshing with the third bevel gear and the fifth bevel gear is fixedly installed.

[0015] As a further optimization of the present invention, the coating mechanism further includes: a drive column, fixedly mounted on the sixth rotating shaft, having a track groove thereon; a drive cover, connected to the storage box via a second spring, and the inner wall of the drive cover is provided with a guide protrusion, the guide protrusion extending into the track groove and slidingly engaging with the track groove; and a first disk, fixedly mounted on the drive cover.

[0016] As a further optimization of the present invention, a reverse thrust mechanism is installed on the support box, the reverse thrust mechanism comprising: a fixed disk, which is fixedly connected to the support box; and a second disk, which is fixedly installed on the fixed disk.

[0017] The above-described technical solution of the present invention has the following beneficial technical effects:

[0018] 1. This invention adjusts the extension position of the extrusion frame by using a second screw. After the extrusion frame generates different pushing amounts on the drive rod, it drives the drive frame to change the contact position of the drive belt on the conical speed-changing wheel, so that different rotational outputs can be obtained under the same moving distance. The output is transmitted to the pressure plate through the gear plate, bevel gear, screw and threaded column. This allows the skin-adhesive layer to use a smaller downward stroke to form a thin and continuous bottom layer, the main medicine layer to use a larger downward stroke to obtain a larger amount of medicine, and the cover layer to use a downward stroke between the two to cover the edge of the front layer. This allows different layers of ointment to be discharged according to their respective uses, avoiding the problem of the skin-adhesive layer being too thick, the main medicine layer being insufficient, or the cover layer overflowing when each layer is applied with the same amount.

[0019] 2. In this invention, the first and second disks repel each other, pushing the drive cover to move. The guide protrusion inside the drive cover slides along the track groove of the drive column and drives the sixth rotating shaft to rotate. Then, the seventh rotating shaft rotates in the opposite direction through the third, fourth, and fifth bevel gears. The two sealing plates swing towards or away from each other with the connecting plate, so that different layers of ointment obtain corresponding outlet gaps when the moving distance is the same but the pressing stroke of the pressure plate is different. This makes it less likely for ointments with a large output, such as the main medicine layer, to accumulate in front of the outlet due to the gap being too small, and less likely for ointments with a small output, such as the skin-adhesive layer, to cause discontinuity or uneven distribution in the width direction due to the gap being too large.

[0020] 3. This invention partially seals the outlet of the storage box using an external sealing strip. Based on the pressure plate determining the discharge volume per unit movement distance and the sealing plate determining the gap in the outlet height direction, it further limits the effective width of the outlet in the length direction. This allows for the application of medicine to narrow areas such as the shoulders and neck through a shorter effective discharge width. In areas around the knees, offset sealing can concentrate the ointment on the target side. In wider areas of the waist and back, the sealing length can be reduced or a wider outlet can be retained. This allows different amounts of medicine, different discharge gaps, and different widths of the area to be coated to be coordinated, reducing the situation where multiple layers of ointment exceed the predetermined boundary or the central coverage is insufficient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an application device for external application of traditional Chinese medicine ointments proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the installation structure of the positioning box and the supporting speed change mechanism in this invention.

[0023] Figure 3 This is a schematic diagram of the internal structure of the support box in this invention.

[0024] Figure 4 In this invention Figure 3 Enlarged schematic diagram of part A.

[0025] Figure 5 In this invention Figure 3Enlarged schematic diagram of part B.

[0026] Figure 6 This is a schematic diagram of the reverse thrust mechanism in this invention.

[0027] Figure 7 This is a schematic diagram of the cooperation structure between the switching mechanism and the coating mechanism in this invention.

[0028] Figure 8 This is a schematic diagram of the internal structure of the switching box in this invention.

[0029] Figure 9 This is a schematic diagram of the internal structure of the storage box in this invention.

[0030] Figure 10 This is a schematic diagram of the mating structure of the drive cover and drive column in this invention.

[0031] Figure 11 This is a schematic diagram of the internal structure of the fixing box in this invention.

[0032] Reference numerals: 100, Moving mechanism; 101, Positioning box; 102, First screw; 103, Drive motor; 110, Support transmission mechanism; 111, Support box; 112, First gear; 113, First shaft; 114, Rack; 115, First drive belt; 116, First drive wheel; 117, Rectangular column; 118, Electric actuator; 119, First conical transmission wheel; 1191, Second drive belt; 1192, First gear plate; 1193, Second shaft; 1194, First spring; 1195, Third shaft; 1196, Second conical transmission wheel; 1197, Drive frame; 1198, Drive rod; 120, Switching mechanism; 121, Switching box; 122, Fourth shaft; 123. Extrusion frame; 124. Second screw; 125. Second gear plate; 126. Fifth rotating shaft; 127. First bevel gear; 128. Fixing plate; 129. Second bevel gear; 1291. Third screw; 1292. Threaded column; 130. Coating mechanism; 131. Storage box; 132. Pressure plate; 133. Sixth rotating shaft; 134. Connecting plate; 135. Sealing plate; 136. Fixing box; 137. Seventh rotating shaft; 138. Second spring; 139. Drive cover; 1391. Drive column; 1392. Third bevel gear; 1393. Eighth rotating shaft; 1394. Fourth bevel gear; 1395. Fifth bevel gear; 140. Reverse thrust mechanism; 141. Fixing plate; 142. Second disk. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0034] Example 1: As Figure 1 , Figure 5 , Figure 7 , Figure 8 , Figure 9 and Figure 11 As shown, this embodiment proposes an application device for external application of traditional Chinese medicine ointments, including a moving mechanism 100, a supporting speed-changing mechanism 110, a switching mechanism 120, a coating mechanism 130, and a reverse-pushing mechanism 140. The moving mechanism 100 drives the coating mechanism 130 to move along the coating direction. The coating mechanism 130 includes multiple storage boxes 131 for storing different traditional Chinese medicine ointments. Each storage box 131 has a sliding pressure plate 132, and two sealing plates 135 are movably arranged on the discharge side. The supporting speed-changing mechanism 110 includes a first conical speed-changing wheel 119 and a second conical speed-changing wheel 1196 arranged opposite each other, a second drive belt 1191 wound between the first conical speed-changing wheel 119 and the second conical speed-changing wheel 1196, and a drive frame 11 for actuating the second drive belt 1191. 97, and a drive rod 1198 for driving the drive frame 1197 to move axially along the conical gear wheel to change the effective transmission radius of the second drive belt 1191; the switching mechanism 120 includes an extrusion frame 123 for acting on the pressure plate 132, and the extrusion frame 123 forms different pressing strokes for different pressure plates 132 as the effective transmission radius changes; wherein, the opening of the sealing plate 135 moves simultaneously with the pressing stroke of the corresponding pressure plate 132, so that the storage box 131 with a large pressing stroke corresponds to a large discharge gap, and the storage box 131 with a small pressing stroke corresponds to a small discharge gap.

[0035] When applying traditional Chinese medicine ointment externally, the thickness of the ointment layer depends not only on the volume of ointment squeezed out of the storage box 131, but also on the discharge gap formed between the two sealing plates 135. When the downward stroke of the pressure plate 132 is large and the discharge gap is small, the ointment is prone to accumulate under pressure at the outlet of the storage box 131; when the downward stroke of the pressure plate 132 is small and the discharge gap is large, the ointment is prone to form strips with insufficient thickness or discontinuous boundaries after discharge. In this embodiment, the supporting speed change mechanism 110, the switching mechanism 120 and the coating mechanism 130 are arranged in the same coating action chain, so that when the moving mechanism 100 drives the coating mechanism 130 to move, the second drive belt 1191 changes the effective transmission radius between the first conical speed change wheel 119 and the second conical speed change wheel 1196, thereby causing the extrusion frame 123 to form different downward strokes for different pressure plates 132, and causing the corresponding sealing plate 135 to form a discharge gap that matches the downward stroke.

[0036] Specifically, multiple storage boxes 131 can respectively store the skin-adhesive layer ointment, the main drug layer ointment, and the outer coating ointment. When the skin-adhesive layer ointment needs to cover the skin texture and should not be locally thickened, the downward stroke of the pressure plate 132 of the corresponding storage box 131 is set to be small, and the two sealing plates 135 form a small discharge gap. When the main drug layer ointment needs to achieve a higher load capacity, the downward stroke of the pressure plate 132 of the corresponding storage box 131 is set to be large, and the two sealing plates 135 form a larger discharge gap. When the outer coating ointment needs to cover the previous layer, the corresponding storage box 131 can be configured with a downward stroke and discharge gap between the two aforementioned settings. Thus, different ointment layers no longer rely on manual judgment of the extrusion pressure, but rather the discharge relationship is formed through the structural cooperation between the storage box 131, the pressure plate 132, the sealing plate 135, the support speed change mechanism 110, and the switching mechanism 120.

[0037] Example 2: Figures 2 to 8 As shown, this embodiment is based on Embodiment 1. The moving mechanism 100 includes a positioning box 101, a first screw 102, and a drive motor 103. The drive motor 103 is fixedly mounted on the positioning box 101, and the first screw 102 is rotatably mounted on the positioning box 101 and fixedly connected to the power output shaft of the drive motor 103. The support box 111 is slidably connected to the positioning box 101, and the support box 111 is threadedly connected to the first screw 102. When the drive motor 103 drives the first screw 102 to rotate, the first screw 102 pushes the support box 111 to move along the positioning box 101 through the threaded engagement, so that the support speed change mechanism 110, the switching mechanism 120, and the coating mechanism 130 mounted on the support box 111 can move along the length direction of the area to be coated on the patient.

[0038] In the application of traditional Chinese medicine ointments, some treatment or care regimens do not involve a single layer of medication. Instead, a layer of adhering plaster, a main drug layer, and a covering layer are sequentially formed on the same skin area. The adhering plaster layer is typically thin and continuously spread to minimize gaps in the skin's texture. The main drug layer carries the main medicinal ingredients and needs to form a relatively stable thickness on top of the adhering plaster layer. The covering layer covers the previous layers and prevents the edges from spreading. If each layer is applied manually by the operator, the edge position of the previous layer, the center of coverage of the next layer, and the amount of plaster applied between layers are easily affected by the force applied and the speed of movement. This is especially true when applying the ointment continuously to narrow areas such as the neck, shoulders, knees, and lower back, where different layers may shift or overlap in certain areas.

[0039] To ensure that the multi-layered herbal ointment is sequentially discharged along the same moving path, this embodiment features a rack 114 fixedly installed inside the positioning box 101. A first rotating shaft 113 is rotatably mounted on the support box 111, and a first gear 112 is fixedly mounted on the first rotating shaft 113 and meshes with the rack 114. When the support box 111 moves along the positioning box 101, the first gear 112 rolls along the rack 114, driving the first rotating shaft 113 to rotate. Two first drive wheels 116 are respectively fixedly mounted on the first rotating shaft 113 and the third rotating shaft 1195, and are connected by a first drive belt 115. Therefore, the rotation of the first rotating shaft 113 can be transmitted to the third rotating shaft 1195 via the first drive wheels 116 and the first drive belt 115, and the third rotating shaft 1195 then drives the second conical speed-changing wheel 1196 to rotate.

[0040] The second conical gear reducer 1196 drives the first conical gear reducer 119 to rotate via the second drive belt 1191. The first conical gear reducer 119 is connected to the second rotating shaft 1193, which is rotatably mounted on the support box 111. The electric actuator 118 is fixedly mounted on the support box 111. The rectangular column 117 is rotatably mounted on the telescopic end of the electric actuator 118 and is slidably connected to the second rotating shaft 1193. The first gear plate 1192 is fixedly mounted on the rectangular column 117. When a storage box 131 needs to be coated with the current layer, the electric push rod 118 extends, the rectangular column 117 moves along the second rotating shaft 1193 and drives the first toothed disk 1192 to approach the second toothed disk 125, so that the first toothed disk 1192 meshes with the corresponding second toothed disk 125; when the coating of the layer is completed, the electric push rod 118 retracts, the first toothed disk 1192 separates from the second toothed disk 125, and the switching box 121 can then rotate to the position corresponding to the next storage box 131.

[0041] The switching mechanism 120 includes a fourth rotating shaft 122, a switching box 121, multiple fifth rotating shafts 126, multiple second gear discs 125, multiple second bevel gears 129, multiple fixing plates 128, multiple third screws 1291, multiple threaded posts 1292, and multiple first bevel gears 127. The fourth rotating shaft 122 is rotatably mounted on the support box 111, and the switching box 121 is fixedly mounted on the fourth rotating shaft 122. The fourth rotating shaft 122 and the support box 111 have a friction-holding relationship. When the operator rotates the switching box 121 to a predetermined position, it can maintain that position without being moved by external force, ensuring that the dispensing side of the current storage box 131 is stably aligned with the patient's treatment area. Multiple fifth rotating shafts 126 are rotatably mounted on the switching box 121. The second gear 125 is fixedly mounted on the fifth rotating shaft 126. The second bevel gear 129 is fixedly mounted on the fifth rotating shaft 126. The fixing plate 128 is fixedly mounted on the switching box 121. The third screw 1291 is rotatably mounted on the fixing plate 128. The threaded post 1292 is slidably connected to the switching box 121 and threadedly connected to the third screw 1291. The threaded post 1292 is also fixedly connected to the corresponding pressure plate 132. The first bevel gear 127 meshes with the second bevel gear 129 and is fixedly connected to the third screw 1291.

[0042] During operation, the first gear disc 1192 drives the second gear disc 125 to rotate, the second gear disc 125 drives the fifth rotating shaft 126 to rotate, the fifth rotating shaft 126 drives the second bevel gear 129 to rotate, the second bevel gear 129 drives the third screw 1291 to rotate through the first bevel gear 127, and the third screw 1291 pushes the threaded post 1292 to move along the switching box 121 through threaded engagement. The threaded post 1292 drives the pressure plate 132 to press down in the storage box 131, causing the Chinese herbal ointment in the storage box 131 to be discharged from the discharge side. Since multiple storage boxes 131 store different Chinese herbal ointments respectively, after the switching box 121 rotates to a different position each time, the first gear disc 1192 only meshes with the second gear disc 125 corresponding to the current layer. Therefore, the same set of moving transmission paths can sequentially drive different storage boxes 131 to complete the layered application of medicine.

[0043] Thus, the moving distance of the support box 111 is converted into the downward stroke of the current pressure plate 132. The device moves a certain distance along the patient's skin, and the current layer of ointment is discharged a certain length according to the corresponding ratio. After the first layer is completed, the first toothed disc 1192 is withdrawn, and the storage box 131 corresponding to the second layer is rotated to the working position, so that the second layer of ointment can be applied on a basically identical coating path. When a third or more layers are needed, they can still be completed in the same way. This structure ensures that the dispensing action of the multi-layer Chinese medicine ointment corresponds to the movement action of the device, which can reduce the problems of inconsistent starting positions of each layer, deviation of the coating path, and local repetitive application when applying multiple layers of medicine.

[0044] Example 3: As Figure 5 and Figure 8 As shown, this embodiment is based on embodiment 2. The supporting transmission mechanism 110 further includes a first spring 1194, one end of which is fixedly connected to the support box 111, and the other end is fixedly connected to the drive rod 1198; the drive frame 1197 is fixedly connected to the drive rod 1198, and the drive rod 1198 is slidably connected to the support box 111. The switching mechanism 120 further includes a second screw 124, which is rotatably mounted on the switching box 121 and threadedly connected to the extrusion frame 123.

[0045] When applying multi-layered herbal ointments, the amount of ointment required for each layer is usually different. For example, the adhesive layer helps the ointment adhere to the skin's texture. If too much ointment is applied, it can form thick, raised areas on the skin surface, making it difficult for the subsequent main drug layer to cover smoothly and potentially pushing it to the sides as the device moves. If too little ointment is applied, gaps may appear in the skin's texture, affecting the adhesion between the subsequent main drug layer and the skin. Similarly, the main drug layer carries the main medicinal ingredients. If too much ointment is applied, it can cause localized thickening over the same distance, making it easy for the outer layer to push it towards the edges. If too little ointment is applied, the layer will be too thin to achieve the intended coverage. The outer layer typically holds the previous ointment in place and reduces edge spreading. If too much outer layer is applied, the ointment may spill out at the edges; if too little, it will not adequately cover the previous layer.

[0046] To address the aforementioned differences in the amount of material used in each layer, this embodiment pre-sets the discharge stroke for each layer using the second screw 124 and the extrusion frame 123. Before coating, the operator rotates the second screw 124, which, through its threaded engagement, causes the extrusion frame 123 to extend or retract relative to the switching box 121. When the extrusion frame 123 extends further, it exerts a greater pressure on the drive rod 1198 after the switching box 121 rotates to the working position. Consequently, the distance the drive rod 1198 drives the drive frame 1197 to move along the support box 111 increases. The drive frame 1197 then moves the second drive belt 1191 axially along the first conical speed-changing wheel 119 and the second conical speed-changing wheel 1196, changing the contact position of the second drive belt 1191 on both wheels and thus altering the effective transmission radius. With the effective transmission radius changing, the amount of rotation output from the first conical gear 119 to the first gear 1192 changes as the support box 111 moves the same distance. The distance that the third screw 1291 drives the threaded column 1292 to move also changes, resulting in a difference in the pressing stroke of the pressure plate 132.

[0047] When the extrusion frame 123 extends slightly, the pressure on the drive rod 1198 is small, the actuation distance of the drive frame 1197 to the second drive belt 1191 is small, and the downward movement of the pressure plate 132 within the same moving distance is small, which is suitable for skin-adhesive layers or thin dressings. When the extrusion frame 123 extends more, the pressure on the drive rod 1198 increases, the drive frame 1197 allows the second drive belt 1191 to achieve a greater positional change, and the downward movement of the pressure plate 132 within the same moving distance increases, which is suitable for main medication layers or layers requiring a larger amount of medication. For cover layers, the second screw 124 can be adjusted to the middle position so that the extension of the extrusion frame 123 is between the two states mentioned above, and the pressure plate 132 forms a corresponding medium downward pressure stroke.

[0048] The first spring 1194 provides a restoring force to the drive rod 1198. After a layer is coated and the extrusion frame 123 releases its pressure on the drive rod 1198, the first spring 1194 can drive the drive rod 1198 and the drive frame 1197 back to their corresponding positions, preventing the drive frame 1197 from remaining in the adjustment position of the previous layer and affecting the discharge stroke of the next layer. Since the second screw 124 and the extrusion frame 123 are threaded together, the extrusion frame 123 can maintain its extended length after adjustment, so the dosage of each layer of paste can be set before formal coating; when the switching box 121 is switched sequentially to the storage box 131 corresponding to the first, second and third layers, each layer can be discharged according to its preset extrusion stroke.

[0049] For example, when applying three layers of medication, the squeeze rod 123 corresponding to the patch ointment in the first storage box 131 can be adjusted to a smaller extension, so that the layer forms a thinner and continuous bottom layer; the squeeze rod 123 corresponding to the main ointment in the second storage box 131 can be adjusted to a larger extension, so that the main ointment layer can obtain more discharge within the same movement distance; the squeeze rod 123 corresponding to the covering ointment in the third storage box 131 can be adjusted to a middle extension, so that it covers the main ointment layer without causing excessive overflow. If the treatment plan requires four layers of medication, the extension of the squeeze rod 123 in the fourth storage box 131 can also be set separately in the same way; if only two layers of medication are required, only two corresponding storage boxes 131 need to be involved in the switching, and the other storage boxes 131 do not need to be in the working position. This structure allows for adaptation of changes in the number of layers and dosage via the switching box 121, the second screw 124, the extrusion frame 123, the drive rod 1198, and the drive frame 1197, avoiding the problem of different layers of ointment being discharged in the same stroke, resulting in thicknesses that do not meet the application requirements.

[0050] Example 4: Figure 6 , Figure 9 , Figure 10 and Figure 11As shown, this embodiment is based on embodiment 3. The coating mechanism 130 further includes a fixed box 136, a sixth rotating shaft 133, a connecting plate 134, a seventh rotating shaft 137, a third bevel gear 1392, a fifth bevel gear 1395, an eighth rotating shaft 1393, and a fourth bevel gear 1394. The fixed box 136 is fixedly installed inside the storage box 131. The sixth rotating shaft 133 is rotatably connected to the fixed box 136 and the storage box 131. The seventh rotating shaft 137 is rotatably connected to the fixed box 136 and the storage box 131. The two connecting plates 134 are respectively fixedly installed on the sixth rotating shaft 133 and the seventh rotating shaft 137, and are respectively fixedly connected to the two sealing plates 135. The third bevel gear 1392 is fixedly mounted on the sixth rotating shaft 133, the fifth bevel gear 1395 is fixedly mounted on the seventh rotating shaft 137, the two eighth rotating shafts 1393 are rotatably mounted on the fixed box 136, and the two fourth bevel gears 1394 are fixedly mounted on the two eighth rotating shafts 1393 respectively, and mesh with the third bevel gear 1392 and the fifth bevel gear 1395 respectively.

[0051] In the third embodiment, different layers of ointment receive different downward pressure strokes via the pressure plate 132, but the distance the device moves along the patient's skin can be the same. For example, the first, second, and third layers all move ten centimeters along the same application path, but the downward pressure strokes of the pressure plate 132 are different among the three layers, resulting in different volumes of ointment squeezed out per unit length. If the outlet gap between the two sealing plates 135 remains the same size at this time, a mismatch between the outlet cross-section and the output volume will occur. For layers with a large output volume, such as the main drug layer, if a smaller outlet gap is still used, the resistance encountered by the ointment at the front of the outlet of the storage box 131 will increase, making it easy to accumulate near the outlet. As it continues to move, it may be squeezed to both sides, causing edge overflow or local thick bulges. For layers with a small output volume, such as the skin-adhesive layer, if a larger outlet gap is still used, the ointment cannot fully fill the outlet cross-section, and after discharge, it is easy to form discontinuous thin strips or uneven distribution in the width direction, resulting in local gaps when subsequent layers are applied.

[0052] To address the matching issue between different discharge volumes and outlet gaps under the same distance movement, this embodiment provides an adjustment structure at each storage box 131 that can change the distance between the two sealing plates 135. The coating mechanism 130 also includes a second spring 138, a drive cover 139, a drive column 1391, and a first disk 1396. The drive column 1391 is fixedly mounted on the sixth rotating shaft 133, and a track groove is formed on the drive column 1391; the drive cover 139 is connected to the storage box 131 via the second spring 138, and a guide protrusion is provided on the inner wall of the drive cover 139, which extends into the track groove and slides in cooperation with the track groove; the first disk 1396 is fixedly mounted on the drive cover 139. A reverse thrust mechanism 140 is mounted on the support box 111, and the reverse thrust mechanism 140 includes a fixed disk 141 and a second disk 142. The fixed disk 141 is fixedly connected to the support box 111, and the second disk 142 is fixedly mounted on the fixed disk 141.

[0053] When the switching box 121 rotates a storage box 131 to the working position, the first disk 1396 on the storage box 131 approaches the second disk 142. After the first disk 1396 and the second disk 142 repel each other, the first disk 1396 pushes the drive cover 139 to move against the elastic force of the second spring 138. When the drive cover 139 moves, the guide protrusion slides along the track groove of the drive column 1391. The track groove converts the linear displacement of the drive cover 139 into the rotation of the drive column 1391. The drive column 1391 drives the sixth rotating shaft 133 to rotate. The sixth rotating shaft 133 drives one of the sealing plates 135 to swing through the connecting plate 134. At the same time, the sixth rotating shaft 133 drives the third bevel gear 1392 to rotate. The third bevel gear 1392 transmits the rotation to the seventh rotating shaft 137 through the fourth bevel gear 1394, the eighth rotating shaft 1393 and the fifth bevel gear 1395, so that the seventh rotating shaft 137 rotates in the opposite direction to the sixth rotating shaft 133. The seventh rotating shaft 137 then drives the other sealing plate 135 to swing through another connecting plate 134, so that the two sealing plates 135 move closer to each other or further away from each other.

[0054] The first disks 1396 at multiple storage boxes 131 can be configured with different magnetic forces. When the storage box 131 corresponding to the skin-adhesive layer enters the working position, the magnetic force of its first disk 1396 is relatively small, the driving cover 139 moves a shorter distance, the rotation angle of the driving column 1391 and the sixth rotating shaft 133 is small, and a small discharge gap is formed between the two sealing plates 135, so that a small amount of ointment can still be constrained into a continuous strip at the outlet. When the storage box 131 corresponding to the main medicine layer enters the working position, the magnetic force of its first disk 1396 is relatively large, the driving cover 139 moves a longer distance, the driving column 1391 drives the sixth rotating shaft 133 to rotate an increased angle, and a larger discharge gap is formed between the two sealing plates 135, so that more ointment can be discharged from the outlet with lower resistance, reducing accumulation in front of the outlet and squeezing to both sides. When the storage box 131 corresponding to the cover layer enters the working position, a first disk 1396 with medium magnetic force can be used to form a medium discharge gap between the two sealing plates 135, which is adapted to the required discharge amount of the cover layer.

[0055] Therefore, in the third embodiment, the different pressing strokes of the pressure plates 132 formed by the second screw 124 and the extrusion frame 123 can achieve corresponding outlet gaps in this embodiment through the first disk 1396, the second disk 142, the drive cover 139, the drive column 1391, the sixth rotating shaft 133, the seventh rotating shaft 137, and the two sealing plates 135. That is to say, when the device moves the same distance, the layer with a larger output corresponds to a larger outlet gap, and the layer with a smaller output corresponds to a smaller outlet gap, so that the paste discharge volume and the outlet cross-section are matched, reducing the problems of high output layer accumulation at the outlet, low output layer discontinuity at the outlet, and uneven distribution in the width direction.

[0056] Example 5: Figure 1 , Figure 7 and Figure 9 As shown, this embodiment further explains the method of limiting the width of the discharge port of the storage box 131 based on the second to fourth embodiments. The aforementioned second embodiment has enabled multiple storage boxes 131 to sequentially discharge multiple layers of traditional Chinese medicine ointment along the same coating path. The third embodiment enables different layers of ointment to form different pressing strokes of the pressure plate 132 under the same moving distance. The fourth embodiment further adapts the discharge gap between the two sealing plates 135 to the amount of medicine applied to each layer. This embodiment further addresses the adaptation problem in the width direction, that is, when the width of the area to be coated on the patient is different, it ensures that the determined discharge amount and discharge gap fall within the predetermined skin area.

[0057] In the application of traditional Chinese medicine ointments, the width of the application area varies in areas such as the neck and shoulders, knees, wrists and ankles, and lower back. Even for the same patient, the required coverage may differ depending on the application site. If the outlet of the storage box 131 always discharges the ointment at its full width, the ointment may exceed the predetermined boundary when the application area is narrow. When the next layer of ointment continues to cover, it may carry the edge of the previous layer out, resulting in uneven boundaries of multiple layers. If the discharge range is controlled only by reducing the gap between the two sealing plates 135, since the sealing plates 135 mainly change the opening in the height direction of the discharge, they cannot directly shorten the width of the outlet in the length direction of the storage box 131. The ointment may still be discharged along the wider outlet, leading to edge overflow or insufficient thickness of the ointment in the center of narrow areas.

[0058] Therefore, in this embodiment, an external sealing strip is provided at the outlet of the storage box 131. The external sealing strip is used to partially block the outlet of the storage box 131, thereby adjusting the effective discharge width of the storage box 131. The external sealing strip can be set as a long strip that fits against the outer edge of the outlet of the storage box 131, or it can be set as a baffle that can be inserted, snapped, or pressed onto the outlet of the storage box 131. Its blocking direction is arranged along the length of the outlet of the storage box 131, so that the unblocked part of the outlet of the storage box 131 forms the area that actually participates in the discharge. The external sealing strip can be set at one end of the outlet, or it can be set at both ends of the outlet. When it is necessary to concentrate the paste in the middle of the outlet for discharge, external sealing strips can be set at both ends of the outlet. When it is necessary to discharge the paste towards one side of the area to be coated, an external sealing strip can be set at one end of the outlet.

[0059] In use, the operator first selects the shielding length of the external sealing strip according to the width of the area to be coated on the patient, and installs the external sealing strip at the outlet of the corresponding storage box 131, so that the outlet of the storage box 131 retains an effective discharge width corresponding to the area to be coated. Then, the switching box 121 is rotated as in the second embodiment, so that the storage box 131 corresponding to the current layer of ointment enters the working position; then, the second screw 124 and the extrusion frame 123 determine the downward stroke of the laminating plate 132 as in the third embodiment; at the same time, the first disk 1396, the second disk 142, the drive cover 139 and the drive column 1391 drive the two sealing plates 135 to form the corresponding discharge gap as in the fourth embodiment. At this time, the pressure plate 132 determines the discharge volume per unit movement distance, the two sealing plates 135 determine the gap in the discharge height direction, and the external sealing strip determines the effective width in the discharge length direction. The three together limit the cross-sectional range of the ointment when it is discharged from the storage box 131.

[0060] For example, when applying a narrow strip of ointment to the neck and shoulders, external sealing strips can be installed at both ends of the outlet of the storage box 131 to shorten the effective outlet width. The ointment will be continuously discharged from the middle under the action of the smaller downward stroke of the pressure plate 132 and the smaller outlet gap, preventing the ointment from crossing the predetermined boundary. When applying a localized ointment to the knee area, the external sealing strip can be set at one end of the outlet of the storage box 131, depending on whether the area to be applied is biased towards the inside or outside, so that the actual outlet position is biased towards the side that needs to be covered. When applying a wider area of ​​ointment to the lower back, the obstruction length of the external sealing strip can be reduced, or the external sealing strip can be omitted, so that the outlet of the storage box 131 retains a wider outlet range.

[0061] Furthermore, during the application of multi-layer herbal ointments, the width of each layer can be set to be the same or different according to actual needs. If the skin-adhering layer, the main drug layer, and the covering layer are required to fall within the same area, multiple storage boxes 131 can use external sealing strips of the same shielding length to ensure that the effective dispensing width of each layer of ointment remains consistent. If the skin-adhering layer needs to be slightly narrower to avoid direct overflow, and the covering layer needs to cover the edge of the previous layer, then the storage box 131 corresponding to the skin-adhering layer can use a longer external sealing strip, and the storage box 131 corresponding to the main drug layer or the covering layer can use a shorter external sealing strip. In this way, based on the multi-layer switching of the second embodiment, the different dispensing amounts of each layer formed in the third embodiment and the different dispensing gaps of each layer formed in the fourth embodiment can be further matched with the area to be applied to the patient in the width direction.

[0062] Without an external sealing strip, relying solely on the downward stroke of the pressure plate 132 and the opening of the sealing plate 135 to control the discharge, for narrow-area application, the main medicine layer tends to spread in the width direction under a large discharge volume and a large discharge gap. As the covering layer continues to discharge, it pushes the edge of the previous layer, widening the boundary of the multi-layer ointment. For wide-area application, if the discharge volume is artificially reduced to avoid overflow, it may result in insufficient coverage in the middle. In this embodiment, the effective width of the discharge port of the storage box 131 is limited by an external sealing strip, allowing more ointment to be discharged within a predetermined width, while less ointment will not disperse into a discontinuous thin layer due to an excessively wide outlet. This creates a mutually adaptable relationship between different application volumes, different discharge gaps, and different widths to be coated.

[0063] Working principle:

[0064] In use, different Chinese herbal ointments are placed into multiple storage boxes 131, and each pressure plate 132 is positioned above the corresponding ointment. Then, according to the width of the area to be applied, an external sealing strip is set at the discharge port of the storage box 131 to make the actual discharge width of the coating mechanism 130 match the predetermined application area on the patient's skin. Subsequently, the switching mechanism 120 rotates the switching box 121 around the fourth rotating shaft 122 to rotate the storage box 131 currently in use to the working position, so that the storage box 131 participates in the discharge of the current layer of Chinese herbal ointment.

[0065] When the moving mechanism 100 is working, the drive motor 103 drives the first screw 102 to rotate. The first screw 102 pushes the support box 111 to move along the positioning box 101. The support box 111 drives the support speed change mechanism 110, the switching mechanism 120, the coating mechanism 130 and the reverse push mechanism 140 to move synchronously along the coating direction, so that the discharge side of the storage box 131 can continuously pass along the patient's area to be coated, thereby providing a moving basis for the Chinese medicine ointment to be discharged along the same path.

[0066] During the movement of the support box 111, the first gear 112 rolls along the rack 114 and drives the first rotating shaft 113 to rotate. The first rotating shaft 113 drives the third rotating shaft 1195 to rotate through the first drive wheel 116 and the first drive belt 115. The third rotating shaft 1195 drives the second conical speed-changing wheel 1196 to rotate. The second conical speed-changing wheel 1196 drives the first conical speed-changing wheel 119 and the second rotating shaft 1193 to rotate through the second drive belt 1191, so that the linear movement of the support box 111 is converted into the rotational power required for the subsequent pressing of the pressure plate 132.

[0067] When the current layer of ointment needs to be discharged, the electric actuator 118 pushes the rectangular column 117 to move along the second rotating shaft 1193. The rectangular column 117 drives the first gear plate 1192 to approach and drive the second gear plate 125 corresponding to the current working position. The second gear plate 125 drives the fifth rotating shaft 126 to rotate. The fifth rotating shaft 126 drives the second bevel gear 129 to rotate. The second bevel gear 129 drives the third screw 1291 to rotate at the fixed plate 128 through the first bevel gear 127. The third screw 1291 pushes the threaded column 1292 to move. The threaded column 1292 then drives the pressure plate 132 to press down, so that the traditional Chinese medicine ointment in the storage box 131 is discharged from the discharge side.

[0068] Before different layers of ointment are discharged, the second screw 124 can be rotated to change the position of the extrusion frame 123. The extrusion frame 123 generates different pushing amounts on the drive rod 1198. The drive rod 1198 drives the drive frame 1197 to move the second drive belt 1191 along the axial direction of the first conical speed change wheel 119 and the second conical speed change wheel 1196, so that the effective transmission radius of the second drive belt 1191 changes. After the drive rod 1198 is released from pressure, the first spring 1194 drives the drive rod 1198 and the drive frame 1197 to reset. Thus, the skin layer, the main drug layer and the cover layer obtain different pressing strokes of the pressure plate 132 under the same moving distance.

[0069] After the current storage box 131 is rotated to the working position, the fixed disk 141 and the second disk 142 in the reverse thrust mechanism 140 exert a reverse thrust on the first disk 1396 on the storage box 131. The first disk 1396 pushes the drive cover 139 to move against the second spring 138. The guide protrusion inside the drive cover 139 slides along the track groove of the drive column 1391 and drives the drive column 1391 to rotate. The drive column 1391 drives the sixth rotating shaft 133 to rotate. The sixth rotating shaft 133 is connected to the connecting plate. 134 drives one of the sealing plates 135 to swing, while the sixth rotating shaft 133 drives the third bevel gear 1392 in the fixed box 136 to rotate. The third bevel gear 1392 drives the seventh rotating shaft 137 to rotate in the opposite direction via the fourth bevel gear 1394, the eighth rotating shaft 1393 and the fifth bevel gear 1395. The seventh rotating shaft 137 then drives the other sealing plate 135 to swing through another connecting plate 134, so that the two sealing plates 135 form a discharge gap corresponding to the current layer's discharge volume.

[0070] When the storage box 131 corresponding to the skin-peeling ointment is working, the downward stroke of the pressure plate 132 is small, and the two sealing plates 135 form a small discharge gap, allowing a small amount of ointment to be continuously discharged with a narrow cross section; when the storage box 131 corresponding to the main medicine layer ointment is working, the downward stroke of the pressure plate 132 is large, and the two sealing plates 135 form a large discharge gap, allowing more ointment to pass smoothly through the discharge side; when the storage box 131 corresponding to the covering layer ointment is working, the downward stroke of the pressure plate 132 and the opening of the sealing plate 135 can be in an intermediate state, so that the covering layer can cover the previous layer without excessively spreading to the edge.

[0071] After one layer of coating is completed, the drive motor 103 stops its current movement, the electric push rod 118 retracts and the first toothed disc 1192 disengages from the current second toothed disc 125, the switching box 121 rotates around the fourth rotating shaft 122 to the corresponding position of the next storage box 131, the second spring 138 drives the drive cover 139 to reset, the first spring 1194 drives the drive rod 1198 and the drive frame 1197 to reset, and then the above transmission process is repeated so that different Chinese herbal ointments can be discharged in layers on the same area to be coated in a set order, and the discharge amount, discharge gap and effective coating width of each layer are matched with each other.

[0072] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A device for applying traditional Chinese medicine ointments externally, characterized in that, include: The moving mechanism (100) is used to drive the coating mechanism (130) to move along the coating direction; The coating mechanism (130) includes multiple storage boxes (131) for storing different Chinese herbal ointments. Each storage box (131) has a pressure plate (132) slidably disposed inside, and two sealing plates (135) are movably disposed on the discharge side. The supporting transmission mechanism (110) includes a first conical transmission wheel (119) and a second conical transmission wheel (1196) arranged opposite to each other, a second drive belt (1191) wound between the first conical transmission wheel (119) and the second conical transmission wheel (1196), a drive frame (1197) for actuating the second drive belt (1191), and a drive rod (1198) for driving the drive frame (1197) to move along the axial direction of the conical transmission wheel to change the effective transmission radius of the second drive belt (1191); The switching mechanism (120) includes an extrusion frame (123) for acting on the pressure plate (132), the extrusion frame (123) forming different pressing strokes for different pressure plates (132) as the effective transmission radius changes; The opening of the sealing plate (135) and the downward stroke of the corresponding pressure plate (132) are pre-corresponding, so that the storage box (131) with a large downward stroke corresponds to a larger discharge gap, and the storage box (131) with a small downward stroke corresponds to a smaller discharge gap.

2. The application device for external application of traditional Chinese medicine ointment according to claim 1, characterized in that, The moving mechanism (100) includes: Positioning box (101), on which a drive motor (103) is fixedly installed. The first screw (102) is rotatably mounted on the positioning box (101) and fixedly connected to the power output shaft of the drive motor (103).

3. The application device for external application of traditional Chinese medicine ointment according to claim 2, characterized in that, The moving mechanism (100) further includes: The support box (111) is slidably connected to the positioning box (101) and threadedly connected to the first screw (102); A rack (114) is fixedly installed inside the positioning box (101); The first rotating shaft (113) is rotatably mounted on the support box (111), and a first gear (112) that meshes with the rack (114) is fixedly mounted on it. The third rotating shaft (1195) is rotatably mounted on the support box (111) and fixedly connected to the second conical gearbox (1196); Two first drive wheels (116) are fixedly installed on the first rotating shaft (113) and the third rotating shaft (1195) respectively, and are connected by a first drive belt (115).

4. The application device for external application of traditional Chinese medicine ointment according to claim 3, characterized in that, The supporting transmission mechanism (110) also includes: The second rotating shaft (1193) is rotatably mounted on the support box (111) and fixedly connected to the first conical gearbox (119); An electric actuator (118) is fixedly installed on the support box (111), and a rectangular column (117) that is slidably connected to the second rotating shaft (1193) is rotatably installed on its telescopic end. The first toothed disc (1192) is fixedly mounted on the rectangular column (117).

5. The application device for external application of traditional Chinese medicine ointment according to claim 4, characterized in that, The switching mechanism (120) further includes: The fourth rotating shaft (122) is rotatably mounted on the support box (111), and a switching box (121) is fixedly mounted on it. Multiple fifth rotating shafts (126) are rotatably mounted on the switching box (121), and each of them is fixedly mounted with a second bevel gear (129). Multiple fixing plates (128) are fixedly installed on the switching box (121), and a third screw (1291) is rotatably installed on each of them. Multiple threaded posts (1292) are slidably connected to the switching box (121), threadedly connected to the third screw (1291), and fixedly connected to the pressure plate (132); Multiple first bevel gears (127) mesh with multiple second bevel gears (129) respectively, and are fixedly connected to multiple third screws (1291); Multiple second gear discs (125) are fixedly mounted on multiple fifth rotating shafts (126).

6. The application device for external application of traditional Chinese medicine ointment according to claim 5, characterized in that, The supporting transmission mechanism (110) also includes: The first spring (1194) is fixedly connected at one end to the support box (111) and at the other end to the drive rod (1198); The drive frame (1197) is fixedly connected to the drive rod (1198), and the drive rod (1198) is slidably connected to the support box (111).

7. The application device for external application of traditional Chinese medicine ointment according to claim 6, characterized in that, The switching mechanism (120) further includes: The second screw (124) is rotatably mounted on the switching box (121) and threadedly connected to the extrusion frame (123).

8. The application device for external application of traditional Chinese medicine ointment according to claim 7, characterized in that, The coating mechanism (130) further includes: A fixing box (136) is fixedly installed inside the storage box (131); The sixth rotating shaft (133) is rotatably connected to the fixed box (136) and the storage box (131), and a connecting plate (134) fixedly connected to the sealing plate (135) is fixedly installed on it. The seventh rotating shaft (137) is rotatably connected to the fixed box (136) and the storage box (131), and a connecting plate (134) fixedly connected to the sealing plate (135) is also fixedly installed on it. The third bevel gear (1392) is fixedly mounted on the sixth rotating shaft (133); The fifth bevel gear (1395) is fixedly mounted on the seventh rotating shaft (137); Two eighth rotating shafts (1393) are rotatably mounted on the fixed box (136), and each of them is fixedly mounted with a fourth bevel gear (1394) that meshes with the third bevel gear (1392) and the fifth bevel gear (1395).

9. A coating device for external application of traditional Chinese medicine ointment according to claim 8, characterized in that, The coating mechanism (130) further includes: The drive column (1391) is fixedly installed on the sixth rotating shaft (133), and a track groove is provided on it; The drive cover (139) is connected to the storage box (131) by a second spring (138), and the inner wall of the drive cover (139) is provided with a guide protrusion, which extends into the track groove and slides in cooperation with the track groove. The first disk (1396) is fixedly mounted on the drive cover (139).

10. The application device for external application of traditional Chinese medicine ointment according to claim 9, characterized in that, A thrust-back mechanism (140) is mounted on the support box (111), the thrust-back mechanism (140) comprising: The fixed plate (141) is fixedly connected to the support box (111); The second disk (142) is fixedly installed on the fixed disk (141).

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