Depth-adjustable vagina medicine applying device for powdery medicine

Abstract

The invention discloses a depth-adjustable vagina medicine applying device for powdery medicine, and relates to the technical field of gynecological medicine application. The medicine feeding head is screwed and sleeved on the left side of the movable tube through a thread; the piston rod is movably sleeved with the medicine feeding reset spring, the medicine feeding reset spring is arranged in the movable pipe, the left end of the medicine feeding reset spring is connected with the piston, and the right end of the medicine feeding reset spring makes contact with the inner wall of the right side of the movable pipe. The supporting frame is movably arranged on the medicine applying head in a sleeving mode, and two expansion arms which are symmetrically arranged up and down are arranged in the supporting frame; the expansion arm is arranged on the outer side of the medicine applying head; the expansion assembly is arranged on one side of the supporting frame; the handle seat is arranged on the lower side of the supporting frame; the medicine applying head can be adjusted according to the position of the wound surface of the cervix uteri, the medicine applying head is made to be close to the wound surface, medicine powder directly reaches the wound surface, medicine absorption is improved, and rehabilitation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gynecological medications, and particularly relates to an adjustable-depth vaginal applicator for powdery medications. Background Art

[0002] Common vaginal medications, such as Saimeian powder, are in powder form. When in use, the powdery medication needs to be stuffed into the vagina, usually by pushing the medication with a syringe; however, due to the fixed length of the syringe, during use, the medication cannot reach directly to the cervical wound surface, affecting the absorption effect. Summary of the Invention

[0003] The purpose of the present invention is to provide an adjustable-depth vaginal applicator for powdery medications with a simple structure, reasonable design and convenient use, which can adjust the applicator head according to the position of the cervical wound surface, so that the applicator head is close to the wound surface, enabling the powder to reach the wound surface directly, improving the drug absorption and the recovery efficiency.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: It includes a movable tube and a piston. A through hole is provided on the left side of the movable tube. A piston is arranged inside the movable tube. A piston rod is fixedly arranged on the right side of the piston. After the right end of the piston rod passes through the right side of the movable tube, it is arranged on the right side of the movable tube; It further includes: An applicator head, which is threadedly sleeved on the left side of the movable tube; An applicator return spring, which is movably sleeved on the piston rod and is arranged inside the movable tube. The left end of the applicator return spring is connected to the piston, and the right end of the applicator return spring is in contact with the right inner wall of the movable tube; A support frame, which is movably sleeved on the applicator head, and two expansion arms are symmetrically arranged up and down inside the support frame; and the expansion arms are arranged outside the applicator head; An expansion assembly, which is arranged on one side of the support frame; A handle seat, which is arranged on the lower side of the support frame; Through the above technical solution design, the medicinal powder is placed in the applicator head, and the applicator head is installed on the movable tube. The expansion arms are stuffed into the vaginal orifice, and the expansion arms are operated to expand through the expansion assembly. Then, the piston rod is manually pulled to the right. At this time, the applicator return spring is compressed under force. After the piston moves away from the medicinal powder, the applicator head filled with the medicinal powder is stuffed into the vagina until it is close to the cervical lesion; finally, when the hand is released, the applicator return spring resets, pushing the piston to move instantly to the left. At this time, an air flow is generated during the movement to blow the medicinal powder, and the medicinal powder is sprayed on the cervical wound surface along the applicator head.

[0005] As a further improvement of the present invention, the expansion assembly includes: An expansion motor, which is fixedly arranged on the front side wall of the support frame through a motor bracket, and a lead screw is arranged on the output end of the expansion motor; A double-sided tooth block, which is sleeved on the lead screw by a threaded sleeve, and the double-sided tooth block is slidably contacted and arranged on the outside of the support frame; Two transmission gears, which are respectively meshed on the upper and lower sides of the double-sided tooth block, and a rotating shaft is penetrated and fixed inside the transmission gear. After the rotating shaft is rotatably connected through the support frame by a bearing, it is inserted and fixed in the expansion arm; Through the above technical solution design, when the expansion motor is started, the lead screw rotates to move the double-sided tooth block, so as to drive the transmission gear to rotate through meshing transmission, and make the corresponding expansion arm rotate to expand the vaginal orifice.

[0006] As a further improvement of the present invention, a cover is arranged on the front side of the support frame, and the cover is arranged outside the expansion motor and the transmission gear; Through the above technical solution design, the expansion motor, the double-sided tooth block, the transmission gear, etc. are covered.

[0007] As a further improvement of the present invention, the left side of the medicine application head is provided with a convex structure, and a discharge hole is arranged on the convex end of the medicine application head; a medicine application port adjusting assembly is arranged on the right side of the movable tube, and the medicine application port adjusting assembly includes: A support seat, which is movably sleeved on the right end of the movable tube, and a piston rod is penetrated inside the support seat; A rotating ring, which is fixedly arranged on the right end of the movable tube, and the rotating ring is arranged outside the piston rod; the rotating ring is rotatably connected through the support seat by a bearing; A turntable, which is sleeved and fixed on the outer wall of the right end of the rotating ring; An operation seat, which is arranged between the support seat and the turntable, and the left side of the operation seat is connected to the right side wall of the support seat, and the right side of the operation seat is in contact with the turntable; Two elastic buttons, which are symmetrically arranged front and back inside the operation seat; A connecting ring, which is arranged inside the operation seat, and the connecting ring is movably sleeved outside the rotating ring; a special-shaped ring is fixedly arranged on the outer wall of the connecting ring, and the outer wall of the special-shaped ring is inclined from outside to inside in sequence from left to right; A steering return spring, the number of which is multiple, is arranged on the right side wall of the support seat in a circumferential equiangular distribution, and the right end of the steering return spring is connected to the special-shaped ring; The inserting rod, there are two inserting rods symmetrically arranged on the right arm of the connecting ring before and after, and after the inserting rod passes through the right side wall of the operating seat, it is inserted into the turntable; Through the design of the above technical solution, press the elastic button to drive the special-shaped ring to compress the steering return spring. At this time, the inserting rod is disengaged from the turntable; the turntable can be manually rotated to drive the movable tube and the medicine application head to rotate, so as to change the protruding angle of the medicine application head and align it with different damaged parts of the cervix; release the hand, the elastic button rebounds, then the steering return spring is reset, the special-shaped ring is pushed, and the inserting rod is driven to insert into the right side, and then after passing through the operating seat, it is inserted into the turntable to fix the direction of the medicine application head.

[0008] As a further improvement of the present invention, a handle portion is provided at the right end of the piston rod, and the handle portion is provided at the right end of the turntable; Through the design of the above technical solution, the handle portion not only facilitates the driving of the piston rod, but also prevents the right end of the piston rod from rebounding into the rotating ring.

[0009] As a further improvement of the present invention, the elastic button is composed of an outer handle, a pressing spring, a strip rod and a push block. The strip rod is inserted into the operating seat, and a push block is fixedly arranged at the inner end of the strip rod. The side of the push block close to the special-shaped ring is inclined from outside to inside in sequence from left to right; a pressing spring is movably sleeved on the end of the strip rod exposed outside the operating seat. The inner end of the pressing spring abuts against the outer wall of the operating seat. The outer end of the strip rod is fixedly provided with an outer handle, and the outer end of the pressing spring is connected to the outer handle; Through the design of the above technical solution, press the outer handle, then the pressing spring is compressed by force, and the strip rod moves inward to make the push block push the special-shaped ring; on the contrary, when the outer handle is released, the pressing spring rebounds and drives the push block to move outward away from the special-shaped ring.

[0010] As a further improvement of the present invention, a convex block is fixedly arranged at the bottom of the support seat, a moving motor is arranged on the right side of the handle seat, a screw rod is arranged at the output end of the moving motor, a screw tube is sleeved on the screw rod by thread, and the right end of the screw tube is connected to the convex block; a guide rod is also arranged between the convex block and the handle seat; Through the design of the above technical solution, through the driving cooperation of the screw rod and the screw tube, the support seat is supported to strengthen the support stability of the movable tube.

[0011] As a further improvement of the present invention, the guide rod is composed of a fixed rod and a movable rod. The fixed rod is fixedly arranged on the right side of the handle, the movable rod is movably sleeved on the fixed rod, and the right end of the movable rod is connected to the convex block; Through the design of the above technical solution, it conducts moving guidance for the driven movable tube.

[0012] The working principle of the present invention: The medicinal powder is placed inside the medicine application head, and the medicine application head is installed on the movable tube. The expansion arm is inserted into the vaginal orifice. The expansion motor is started to rotate the lead screw, thereby moving the bidirectional gear block, and then driving the transmission gear to rotate through meshing transmission, so that the corresponding expansion arm rotates to expand the vaginal orifice. The moving motor is started, and the screw and the thread of the screw tube drive to make the support seat drive the movable tube to move, so that the medicine application head enters the cervix until the damaged position. According to the damaged surface of the cervix, first press the outer handle, then the compression spring is compressed by the force, and the bar moves inward, so that the push block pushes the special-shaped ring, driving the special-shaped ring to compress the steering return spring. At this time, the insertion rod disengages from the turntable. Then the turntable can be manually rotated to drive the movable tube and the medicine application head to rotate, so as to change the protruding angle of the medicine application head and align it with different damaged parts of the cervix. Release the outer handle, the compression spring rebounds, driving the push block to move outward away from the special-shaped ring, making the steering return spring reset, pushing the special-shaped ring, driving the insertion rod to insert into the right side, and then passing through the operation seat and inserting into the turntable to fix the direction of the medicine application head. Finally, manually pull the piston rod to the right. At this time, the medicine application return spring is compressed by the force. Immediately release the hand after the piston moves away from the medicinal powder. The medicine application return spring then resets, pushing the piston to move instantly to the left. At this time, an air flow is generated during the movement to blow the medicinal powder, and the medicinal powder is sprayed on the cervix wound surface along the medicine application head.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. An additional medicine application return spring is added to push the movement of the piston. The gas impact generated by the instant rebound movement of the piston blows the powder, so that the medicinal powder is ejected from the medicine application head. 2. The left end of the medicine application head is convexly arranged, so that the medicine application head can be rotated and adjusted according to the damaged condition of the cervix, changing the spraying direction of the medicinal powder, and making the medicinal powder more closely adhere to the cervix wound surface. 3. Before spraying the medicine, the vaginal orifice is expanded by the expansion arm, which not only facilitates the insertion of the medicine application head, but also makes it more convenient to observe the damaged surface of the cervix. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present invention.

[0015] Figure 2 is the internal structural schematic diagram of the present invention.

[0016] Figure 3 is the structural schematic diagram of the connection between the medicine application head, the movable tube and the support seat in the present invention.

[0017] Figure 4 is Figure 3 the internal structural schematic diagram of

[0018] Figure 5 is Figure 4 an enlarged view of part A.

[0019] Figure 6 is a schematic structural view of the support frame and the expansion arm in the present invention.

[0020] Figure 7 is a schematic structural view of the elastic button in the present invention.

[0021] Figure 8 is a schematic structural view of the medicine application head working in the specific implementation manner.

[0022] Explanation of reference numerals: Movable tube 1, through hole 1-1, piston 2, piston rod 3, medicine application head 4, discharge hole 4-1, medicine application return spring 5, support frame 6, expansion arm 7, expansion assembly 8, expansion motor 8-1, lead screw 8-2, double-sided tooth block 8-3, transmission gear 8-4, cover 8-5, handle seat 9, medicine application port adjustment assembly 10, support seat 10-1, rotating ring 10-2, turntable 10-3, operation seat 10-4, elastic button 10-5, outer handle 10-5-1, pressing spring 10-5-2, bar 10-5-3, push block 10-5-4, connecting ring 10-6, special-shaped ring 10-7, steering return spring 10-8, insertion rod 10-9, handle portion 11, convex block 12, moving motor 13, screw 14, screw tube 15, guide rod 16, fixed rod 16-1, movable rod 16-2. Specific implementation manner

[0023] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0024] Embodiment 1: Please refer to Figures 1 - 8 , this embodiment includes a movable tube 1 and a piston 2. A through hole 1-1 is provided on the left side of the movable tube 1. A piston 2 is arranged inside the movable tube 1. A piston rod 3 is fixedly arranged on the right side of the piston 2. After the right end of the piston rod 3 passes through the right side of the movable tube 1, it is arranged on the right side of the movable tube 1; It further includes: A medicine application head 4, and the medicine application head 4 is threadedly sleeved on the left side of the movable tube 1; A medicine application return spring 5, and the medicine application return spring 5 is movably sleeved on the piston rod 3 and is arranged inside the movable tube 1. The left end of the medicine application return spring 5 is connected to the piston 2, and the right end of the medicine application return spring 5 is in contact with the inner wall of the right side of the movable tube 1; The support frame 6, the support frame 6 is movably sleeved on the medicine application head 4, and two expansion arms 7 which are symmetrically arranged up and down are arranged inside the support frame 6; and the expansion arms 7 are arranged outside the medicine application head 4; The expansion assembly 8, the expansion assembly 8 is arranged on one side of the support frame 6; The handle seat 9, the handle seat 9 is arranged on the lower side of the support frame 6; Through the above technical solution design, the medicine powder is placed in the medicine application head 4, and the medicine application head 4 is installed on the movable tube 1. The expansion arms 7 are inserted into the vaginal orifice, and the expansion arms 7 are operated to expand through the expansion assembly 8. Then, the piston rod 3 is manually pulled to the right. At this time, the medicine application return spring 5 is compressed under force. After the piston 2 moves away from the medicine powder, the medicine application head 4 filled with the medicine powder is stuffed into the vagina until it is close to the cervical lesion. Finally, let go of the hand, and the medicine application return spring 5 will reset, pushing the piston 2 to move instantaneously to the left. At this time, an air flow is generated during the movement to blow the medicine powder, and the medicine powder is sprayed on the cervical wound surface along the medicine application head 4.

[0025] Embodiment 2: Please refer to Figures 1 - 8 , on the basis of Embodiment 1, a further improvement is made. The expansion assembly 8 includes: The expansion motor 8-1, the expansion motor 8-1 is fixedly arranged on the front side wall of the support frame 6 through a motor bracket. The specific model of the expansion motor 8-1 is directly purchased, installed and used from the market according to actual use requirements. And a lead screw 8-2 is arranged on the output end of the expansion motor 8-1; The double-sided tooth block 8-3, the double-sided tooth block 8-3 is sleeved on the lead screw 8-2 by thread, and the double-sided tooth block is slidably contacted and arranged outside the support frame 6; The transmission gears 8-4, there are two transmission gears 8-4, which are respectively meshed on the upper and lower sides of the double-sided tooth block. And a rotating shaft is penetrated and fixed inside the transmission gear 8-4. After the rotating shaft is rotatably connected through the support frame 6 by a bearing, it is inserted and fixed in the expansion arm 7; A cover 8-5 is arranged on the front side of the support frame 6, and the cover 8-5 is arranged outside the expansion motor 8-1 and the transmission gear 8-4; Through the above technical solution design, the expansion motor 8-1 is started to rotate the lead screw 8-2 to move the double-sided tooth block, so as to drive the transmission gear 8-4 to rotate through meshing transmission, and make the corresponding expansion arm 7 rotate to expand the vaginal orifice.

[0026] Embodiment 3: Please refer to Figures 1 - 8, on the basis of Embodiment 1, a further improvement is made. The left side of the medicine application head 4 is provided with a convex structure, and a discharge hole 4-1 is provided on the convex end of the medicine application head 4; a medicine application port adjustment assembly 10 is provided on the right side of the movable tube 1. The medicine application port adjustment assembly 10 includes: A support seat 10-1, the support seat 10-1 is movably sleeved on the right end of the movable tube 1, and the piston rod 3 passes through the support seat 10-1; A rotating ring 10-2, the rotating ring 10-2 is fixedly arranged on the right end of the movable tube 1, and the rotating ring 10-2 is arranged outside the piston rod 3; the rotating ring 10-2 is rotatably connected through a bearing and passes through the support seat 10-1; A turntable 10-3, the turntable 10-3 is sleeved and fixed on the outer wall of the right end of the rotating ring 10-2; a handle portion 11 is provided at the right end of the piston rod 3, and the handle portion 11 is arranged at the right end of the turntable 10-3; An operation seat 10-4, the operation seat 10-4 is arranged between the support seat 10-1 and the turntable 10-3, and the left side of the operation seat 10-4 is connected to the right side wall of the support seat 10-1, and the right side of the operation seat 10-4 is in contact with the turntable 10-3; Elastic buttons 10-5, there are two elastic buttons 10-5, which are symmetrically arranged front and back in the operation seat 10-4; the elastic button 10-5 is composed of an outer handle 10-5-1, a pressing spring 10-5-2, a strip bar 10-5-3 and a push block 10-5-4. The strip bar 10-5-3 passes through the operation seat 10-4, and a push block 10-5-4 is fixedly arranged at the inner end of the strip bar 10-5-3. The side of the push block 10-5-4 close to the special-shaped ring 10-7 is inclined from outside to inside from left to right; a pressing spring 10-5-2 is movably sleeved on the end of the strip bar 10-5-3 exposed outside the operation seat 10-4. The inner end of the pressing spring 10-5-2 abuts against the outer wall of the operation seat 10-4, and an outer handle 10-5-1 is fixedly arranged at the outer end of the strip bar 10-5-3, and the outer end of the pressing spring 10-5-2 is connected to the outer handle 10-5-1; A connecting ring 10-6, the connecting ring 10-6 is arranged in the operation seat 10-4, and the connecting ring 10-6 is movably sleeved outside the rotating ring 10-2; a special-shaped ring 10-7 is fixedly arranged on the outer ring wall of the connecting ring 10-6, and the outer wall of the connecting ring 10-6 is inclined from outside to inside from left to right; Steering return springs 10-8, the number of the steering return springs 10-8 is multiple, and they are arranged in a circumferential equiangular distribution on the right side wall of the support seat 10-1, and the right ends of the steering return springs 10-8 are connected to the special-shaped ring 10-7; The inserting rod 10-9, the inserting rod 10-9 is symmetrically arranged on the right arm of the connecting ring 10-6 in the front and back, and after the inserting rod 10-9 passes through the right side wall of the operating seat 10-4, it is inserted into the turntable 10-3; Through the design of the above technical solution, press the elastic button 10-5 to drive the special-shaped ring 10-7 to compress the steering return spring 10-8. At this time, the inserting rod 10-9 disengages from the turntable 10-3; the turntable 10-3 can be manually rotated to drive the movable tube 1 and the medicine application head 4 to rotate, so as to change the protruding angle of the medicine application head 4 to align different damaged parts of the cervix; release the hand, and the elastic button 10-5 rebounds, then the steering return spring 10-8 is reset, pushing the special-shaped ring 10-7 to drive the inserting rod 10-9 to insert to the right, and after passing through the operating seat 10-4, it is inserted into the turntable 10-3 to fix the direction of the medicine application head 4.

[0027] Embodiment 4: Please refer to Figures 1 - 8 , on the basis of Embodiment 3, further improvement is made. A convex block 12 is fixedly arranged at the bottom of the support seat 10-1, a moving motor 13 is arranged on the right side of the handle seat 9, and the specific model of the moving motor 13 is directly purchased, installed and used from the market according to actual use requirements; a screw rod 14 is arranged on the output end of the moving motor 13, a screw tube 15 is sleeved on the screw rod 14 by thread, and the right end of the screw tube 15 is connected with the convex block 12; a guide rod 16 is also arranged between the convex block 12 and the handle seat 9; the guide rod 16 is composed of a fixed rod 16-1 and a movable rod 16-2. The fixed rod 16-1 is fixedly arranged on the right side of the handle, the movable rod 16-2 is movably sleeved on the fixed rod 16-1, and the right end of the movable rod 16-2 is connected with the convex block 12; Through the design of the above technical solution, through the driving cooperation of the screw rod 14 and the screw tube 15, the support seat 10-1 is supported to strengthen the support stability of the movable tube 1.

[0028] When using the present invention, the medicinal powder is placed in the medicine application head 4, and the medicine application head 4 is installed on the movable tube 1. The expansion arm 7 is inserted into the vaginal orifice, the expansion motor 8-1 is started, the lead screw 8-2 rotates to move the bidirectional tooth block, and then through meshing transmission, the transmission gear 8-4 rotates to make the corresponding expansion arm 7 rotate to expand the vaginal orifice; start the moving motor 13, and through the threaded drive of the screw rod 14 and the screw tube 15, the support seat 10-1 drives the movable tube 1 to move, so that the medicine application head 4 moves into the cervix until the damaged position; According to the damaged surface of the cervix, first press the outer handle 10-5-1, then the compression spring 10-5-2 is compressed under force, and the rod 10-5-3 moves inward to make the push block 10-5-4 push the special-shaped ring 10-7, driving the special-shaped ring 10-7 to compress the steering return spring 10-8. At this time, the insertion rod 10-9 disengages from the turntable 10-3; then the turntable 10-3 can be manually rotated to drive the movable tube 1 and the medicine application head 4 to rotate, changing the protruding angle of the medicine application head 4 to align with different damaged parts of the cervix; release the outer handle 10-5-1, the compression spring 10-5-2 rebounds, driving the push block 10-5-4 to move outward away from the special-shaped ring 10-7, resetting the steering return spring 10-8, pushing the special-shaped ring 10-7, driving the insertion rod 10-9 to insert into the right side, and then passing through the operation seat 10-4 and inserting into the turntable 10-3 to fix the direction of the medicine application head 4; Finally, manually pull the piston rod 3 to the right. At this time, the medicine application return spring 5 is compressed under force. Immediately release the hand after the piston 2 moves away from the medicine powder. The medicine application return spring 5 then resets, pushing the piston 2 to move instantly to the left. At this time, an air flow is generated during the movement to blow the medicine powder, and the medicine powder is sprayed on the damaged surface of the cervix along the medicine application head 4.

[0029] Compared with the prior art, the beneficial effects of the present invention are: 1. Add the medicine application return spring 5 to push the movement of the piston 2. The gas impact generated by the instant rebound movement of the piston 2 blows the powder, causing the medicine powder to spray out from the medicine application head 4; 2. The left end of the medicine application head 4 is convexly arranged, so that the medicine application head 4 can be rotationally adjusted according to the damaged condition of the cervix, changing the spraying direction of its medicine powder to make the medicine powder more closely adhere to the damaged surface of the cervix; 3. Before spraying the medicine, the vaginal orifice is dilated by the dilation arm 7, which not only facilitates the insertion of the medicine application head 4 but also makes it more convenient to observe the damaged surface of the cervix.

[0030] For those skilled in the art, they can modify the technical solutions recorded in the foregoing embodiments and perform equivalent replacements of some technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A depth-adjustable vaginal applicator for powdered drugs, comprising a movable tube (1) and a piston (2), wherein a through hole (1-1) is provided on the left side of the movable tube (1), the piston (2) is arranged in the movable tube (1), a piston rod (3) is fixedly arranged on the right side of the piston (2), and the right end of the piston rod (3) passes through the right side of the movable tube (1) and is arranged on the right side of the movable tube (1); It is characterized in that It also contains: An upper medicine head (4), the upper medicine head (4) being sleeved on the left side of the movable tube (1) by means of a threaded connection; a medicine loading reset spring (5), wherein the medicine loading reset spring (5) is movably sleeved on the piston rod (3), and the medicine loading reset spring (5) is arranged in the movable tube (1), the left end of the medicine loading reset spring (5) is connected to the piston (2), and the right end of the medicine loading reset spring (5) is in contact with the right inner wall of the movable tube (1); A support frame (6), wherein the support frame (6) is movably sleeved on the upper medicine head (4), and two expansion arms (7) are symmetrically arranged in the upper and lower parts of the support frame (6); and the expansion arms (7) are arranged on the outer side of the upper medicine head (4); An expansion component (8), wherein the expansion component (8) is arranged on one side of the support frame (6); A handle seat (9), wherein the handle seat (9) is arranged on the lower side of the support frame (6).

2. The adjustable depth vaginal applicator for powdered drugs according to claim 1, characterized in that: The expansion assembly (8) comprises: An expansion motor (8-1), wherein the expansion motor (8-1) is fixedly mounted on a front side wall of the support frame (6) via a motor bracket, and a lead screw (8-2) is disposed on an output end of the expansion motor (8-1); A double-sided gear block (8-3), wherein the double-sided gear block (8-3) is sleeved on the screw rod (8-2) through a threaded connection, and the bidirectional gear block is arranged on the outer side of the support frame (6) in sliding contact; Transmission gears (8-4), wherein there are two transmission gears (8-4), which are respectively meshed and arranged on the upper and lower sides of the bidirectional gear block, and a rotating shaft is passed through and fixed inside the transmission gear (8-4), and the rotating shaft is screwed through the support frame (6) through a bearing and then inserted and fixed in the expansion arm (7).

3. The adjustable depth vaginal applicator for powdered drugs according to claim 2, characterized in that: A cover (8-5) is provided on the front side of the support frame (6), and the cover (8-5) is arranged on the outside of the expansion motor (8-1) and the transmission gear (8-4).

4. The adjustable depth vaginal applicator for powdered drugs according to claim 1, characterized in that: The left side of the medicine upper head (4) is provided with a protruding structure, and a discharge hole (4-1) is provided on the protruding end of the medicine upper head (4); the right side of the movable tube (1) is provided with a medicine upper port adjustment component (10), and the medicine upper port adjustment component (10) comprises: A support seat (10-1), wherein the support seat (10-1) is movably sleeved on the right end of the movable tube (1), and the piston rod (3) is inserted into the support seat (10-1); A rotating ring (10-2), wherein the rotating ring (10-2) is fixedly arranged at the right end of the movable tube (1), and the rotating ring (10-2) is arranged outside the piston rod (3); the rotating ring (10-2) is screwed through the support seat (10-1) via a bearing; A turntable (10-3), wherein the turntable (10-3) is sleeved and fixed on the outer wall of the right end of the rotating ring (10-2); An operating seat (10-4), wherein the operating seat (10-4) is arranged between the support seat (10-1) and the turntable (10-3), and the left side of the operating seat (10-4) is connected to the right side wall of the support seat (10-1), and the right side of the operating seat (10-4) is in contact with the turntable (10-3); Elastic buttons (10-5), wherein the number of the elastic buttons (10-5) is two and they are symmetrically arranged in the operating seat (10-4) in the front and rear directions; A connecting ring (10-6), wherein the connecting ring (10-6) is arranged in the operating seat (10-4), and the connecting ring (10-6) is movably sleeved on the outside of the rotating ring (10-2); a special-shaped ring (10-7) is fixedly arranged on the outer ring wall of the connecting ring (10-6), and the outer wall is arranged to be inclined from left to right and from outside to inside in sequence; A steering return spring (10-8), wherein the steering return springs (10-8) are multiple in number and are arranged on the right side wall of the support seat (10-1) in a circular equiangular distribution, and the right end of the steering return spring (10-8) is connected to the special-shaped ring (10-7); The inserting rods (10-9) are two symmetrically arranged on the right arm of the connecting ring (10-6) in a front-to-back manner, and the inserting rods (10-9) are inserted into the rotating table (10-3) after passing through the right side wall of the operating seat (10-4).

5. The adjustable depth vaginal applicator for powdered drugs according to claim 4, characterized in that: The right end of the piston rod (3) is provided with a handle (11), and the handle (11) is arranged at the right end of the turntable (10-3).

6. The adjustable depth vaginal applicator for powdered drugs according to claim 4, characterized in that: The elastic button (10-5) is composed of an outer handle (10-5-1), a pressing spring (10-5-2), a bar (10-5-3) and a push block (10-5-4). The bar (10-5-3) is inserted into the operating seat (10-4), and a push block (10-5-4) is fixedly arranged at the inner end of the bar (10-5-3). The side of the push block (10-5-4) close to the special-shaped ring (10-7) is arranged from left to right in the shape of The outer end of the bar (10-5-3) is fixedly provided with an outer handle (10-5-1), and the outer end of the pressing spring (10-5-2) is connected to the outer handle (10-5-1).

7. The adjustable depth vaginal applicator for powdered drugs according to claim 4, characterized in that: A protrusion (12) is fixedly provided at the bottom of the support seat (10-1), a movable motor (13) is provided on the right side of the handle seat (9), a screw rod (14) is provided on the output end of the movable motor (13), the screw rod (14) is provided with a screw tube (15) through a threaded sleeve, and the right end of the screw tube (15) is connected to the protrusion (12); a guide rod (16) is also provided between the protrusion (12) and the handle seat (9).

8. The adjustable depth vaginal applicator for powdered drugs according to claim 7, characterized in that: The guide rod (16) is composed of a fixed rod (16-1) and a movable rod (16-2); the fixed rod (16-1) is fixedly arranged on the right side of the handle; the movable rod (16-2) is movably sleeved on the fixed rod (16-1); and the right end of the movable rod (16-2) is connected to the protrusion (12).

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