Special gutta-percha point ultraviolet disinfection device for dental department

Abstract

The invention discloses a dental special gutta-percha point ultraviolet disinfection device, and relates to the technical field of medical disinfection equipment, the dental special gutta-percha point ultraviolet disinfection device comprises a containing disc provided with a plurality of containing grooves used for placing gutta-percha points, and an ultraviolet light emitting source arranged in the middle of the containing disc and used for disinfecting the gutta-percha points; the gutta-percha point is arranged in a containing groove in parallel in the axial direction of the containing groove. The lampshade covers the ultraviolet light emitting source, and a channel opening corresponding to the containing groove is formed in the lampshade; according to the invention, the top of the accommodating disc is provided with the accommodating groove for placing the gutta-percha point, the central ultraviolet light emitting source is covered by the lampshade, light is emitted to the accommodating groove through the opening of the channel, ultraviolet light is shielded by the shading plate and the corrugated pipe and only penetrates through the collimating lens, and the lens can collimate the light, so that the propagation direction of the light is more parallel, the light is in a wire harness shape, and the energy is concentrated; by driving the lens to reciprocate and rotate, the angle of the ultraviolet light beam can be independently adjusted, so that the light beam is attached to and irradiates the outer wall of the gutta-percha point.

Description

Technical Field

[0001] The invention relates to the technical field of medical disinfection equipment, in particular to a dental-specific gutta-percha tip ultraviolet disinfection device. Background Art

[0002] Ultraviolet disinfection is a physical disinfection method that does not involve chemical substances. It will not leave chemical disinfectants on the surface of the gutta-percha tip like chemical disinfection, nor will it change the material properties of the gutta-percha tip. At the same time, unlike high temperature and high pressure disinfection, ultraviolet disinfection will not deform the gutta-percha tip. It can maintain the shape and size of the gutta-percha tip, meeting the precise requirements of root canal treatment for the gutta-percha tip.

[0003] Since gutta-percha tips have various specifications, such as different diameters and lengths, specific containers are required to hold the gutta-percha tips, so as to facilitate the classification and storage of gutta-percha tips of different specifications. Therefore, in order to avoid disrupting the positions of the gutta-percha tips, the gutta-percha tips need to be placed in a disinfection device together with the containers during disinfection; In dental clinical practice, gutta-percha tips are usually used in large quantities. Multiple gutta-percha tips are used in one root canal treatment. Therefore, multiple gutta-percha tips need to be placed in an ultraviolet disinfection device together to disinfect a large number of gutta-percha tips at the same time to meet the needs of use. However, ultraviolet rays, like light, propagate in a straight line, and multiple gutta-percha tips are prone to blocking each other. This means that if some gutta-percha tips are outside the ultraviolet propagation path, or are blocked by other gutta-percha tips or by containers, they cannot be fully irradiated by ultraviolet rays, and thus cannot achieve a disinfection effect. In order to solve the defect of UV rays having blind spots, the existing technology refracts UV rays so that the refracted UV rays can illuminate the blind spots. However, the intensity of UV rays will be reduced after being refracted. Moreover, UV rays are similar to incandescent bulbs in that the light they emit is evenly distributed in the surrounding environment and is relatively dispersed. This dispersed light will be more dispersed after refraction, and the light intensity will be lower. This will not only lead to a significant difference in disinfection effect between the area of ​​the gutta-percha tip that is directly irradiated by UV rays and the area that is refracted by UV rays, but also the dispersed light will still have locations that cannot be irradiated. In dental clinical practice, a batch of gutta-percha tips are usually placed in a disinfection device for disinfection at the same time, and a unified disinfection time is set. When the disinfection time is over, the batch of gutta-percha tips are often taken out at the same time, and those that may not have been completely disinfected cannot be selected one by one from the numerous gutta-percha tips. In addition, it is impossible to accurately judge whether the gutta-percha tips have been thoroughly disinfected just by observing their appearance with the naked eye. Therefore, after a batch of gutta-percha tips are taken out, the areas where the gutta-percha tips are irradiated by refracted ultraviolet light will not be thoroughly disinfected, and bacteria, fungi and other microorganisms remaining on the gutta-percha tips may enter the root canal system of the teeth, which may cause infection in the root canal, resulting in tooth pain and swelling in patients after surgery. In severe cases, apical abscesses may form, affecting the patients' normal chewing and quality of life. Summary of the invention

[0004] The object of the present invention is to provide a dental-specific gutta-percha tip ultraviolet disinfection device to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides a dental-specific gutta-percha ultraviolet disinfection device, comprising a receiving tray with a plurality of receiving slots, the receiving slots being used to place the gutta-percha tips, and an ultraviolet light source being arranged in the middle of the receiving tray for disinfecting the gutta-percha tips; the gutta-percha tips being arranged in the receiving slots parallel to the axial direction of the receiving slots; A lampshade is arranged on the ultraviolet light source, and has a channel opening corresponding to the receiving groove inside, so that the light from the ultraviolet light source is irradiated into the receiving groove through the channel opening; The collimating lens assembly comprises two collimating lenses symmetrically arranged about the center of the channel opening. The two collimating lenses can move relatively close to or away from each other along the radial direction of the channel opening to change the angle between two light beams gathered into parallel line beams to irradiate the surface of the gutta-percha tip.

[0006] Furthermore, the collimating lens assembly also includes two shading plates for shading light, and retractable bellows on both sides of the collimating lens, which are used to drive the collimating lens to move back and forth when alternately retracting and contracting; The driving part is arranged between the two collimating lenses, and is used to drive the collimating lenses to make the light move in a circle around the gutta-percha tip when the light is aimed at the outer wall of the gutta-percha tip.

[0007] Furthermore, it also includes an angle adjustment mechanism, which is arranged inside the channel opening and includes at least two deformable convex lenses for changing the illumination angle when the light beam passes through. A stretching component for controlling the deformation of the convex lenses is connected between the two convex lenses.

[0008] Furthermore, the collimating lens assembly also includes a supporting ring, the supporting ring is provided with an annular groove, a quartz glass slide is fixedly mounted on the inner wall of the annular groove, the quartz glass slide is annular, two shading plates are arranged inside the supporting ring, the outer walls of the shading plates are against the outer walls of the quartz glass slide, a spacing is left between the two shading plates, two mounting frames are arranged in the spacing, and the top of the mounting frame is against the bottom of the upper shading plate; The bottom of the mounting frame abuts against the top of the lower shading plate, the mounting frame is provided with an inner cavity, the two bellows are arranged inside the inner cavity, the collimating lens is located between the two bellows, a slider is placed inside the inner cavity, the slider is provided with a circular opening, the collimating lens is fixedly installed inside the circular opening, and the ends of the two bellows close to each other are fixedly connected to the outer wall of the slider; The outer walls on both sides of the mounting frame are provided with strip openings, one end of the mounting frame is provided with an air inlet opening, an arc-shaped strip is fixedly installed on the outer wall of the sunshade, a through groove is left between the two arc-shaped strips, the air inlet opening extends to the interior of the support ring through the through groove, the interior of the support ring is connected with the air inlet opening, the inner wall of the through groove is against the outer wall of the mounting frame, and the arc-shaped strip is rotatably connected to the inner wall of the support ring.

[0009] Furthermore, the support ring is plugged with an air intake pipe, the bottom end of the air intake pipe extends to the interior of the support ring, the outer wall of the air intake pipe is fixedly connected to the inner wall of the support ring, the air intake pipe sleeve is provided with a sliding rod, a connecting rod is fixedly installed on the inner top wall of the sliding rod, a piston is fixedly installed on the bottom end of the connecting rod, and the piston is located inside the air intake pipe and is tightly attached to the inner wall of the air intake pipe.

[0010] Furthermore, the angle adjustment mechanism also includes two fixing rings, which are symmetrically arranged between the two convex lenses, the outer walls of the convex lenses are abutted against the outer walls of the fixing rings, a screw rod is arranged between the two fixing rings, the outer wall of the screw rod is wrapped with two connecting ropes, and the ends of the two connecting ropes away from the screw rod are fixedly installed with fixing plates, the ends of the fixing plates away from the connecting ropes are fixedly connected to the outer wall of the convex lens, and the fixing plates are located at the midline point of the convex lens.

[0011] Furthermore, the channel opening is provided with two through holes, the channel opening is communicated with the through holes, the sliding rod and the air inlet pipe are located inside one of the through holes, the sliding rod extends to the outside of the channel opening through the through hole, and the screw rod is located inside the other through hole and extends to the outside of the channel opening through the through hole.

[0012] Furthermore, the driving part includes a servo motor fixedly mounted on the inner wall of the support ring, the driving end of the servo motor is fixedly connected to a fixing frame, a mounting ring is arranged on the periphery of the servo motor, both ends of the fixing frame away from the servo motor are fixedly connected to the outer wall of the mounting ring, both ends of the two mounting frames away from the through slot are fixedly connected to the outer wall of the mounting ring, and the mounting ring is not connected to the support ring.

[0013] Furthermore, a sleeve is fixedly installed on the inner wall of the accommodating groove, an annular airbag is fixedly installed on the inner wall of the sleeve, the interior of the annular airbag is hollow, the annular airbag is made of elastic material, and one end of the toothpaste tip with a label is inserted into the interior of the annular airbag and tightly abuts against the inner wall of the annular airbag.

[0014] Furthermore, a knob is fixedly mounted on the top end of the screw rod, two fixing rods are fixedly mounted on the outer wall of the fixing ring, and one end of the fixing rod away from the fixing ring is fixedly connected to the inner wall of the channel opening.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a receiving groove is provided on the top of the receiving tray for placing the gutta-percha tip. The ultraviolet light source in the center is covered by a lampshade. The light is emitted to the receiving groove through the channel opening. The ultraviolet light is shielded by the shading plate and the bellows, and only the ultraviolet light is allowed to pass through the collimating lens. The lens can collimate the light, making its propagation direction more parallel and in the shape of a line beam with concentrated energy. By driving the lens to reciprocate and rotate, the angle of the ultraviolet light beam can be adjusted individually, so that the light beam fits and illuminates the outer wall of the gutta-percha tip.

[0016] 2. In the present invention, the ultraviolet light passes through the collimating lens and reaches the convex lens of plastic material. The stretching component can change the shape of the convex lens, making it bend outward to focus light and bend inward to scatter light. When it bends inward, it produces refraction similar to a concave lens to change the direction of light propagation, and the degree of depression affects the direction of light. The tip of the gutta-percha is conical and has a variety of models. The depression of the convex lens needs to be adjusted according to its size so that the ultraviolet light fits the outer wall for disinfection. The light beam rotates around the outer wall of the gutta-percha tip, and the light intensity is concentrated and stable without obstruction, ensuring that the outer wall is evenly illuminated and disinfected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the connection structure between the gutta-percha tip and the sleeve in the present invention; Figure 4 is the illumination diagram of the light in the present invention; Figure 5 It is a schematic diagram of the connection structure between the connecting rope and the screw rod in the present invention; Figure 6It is a schematic diagram of the connection structure between the support ring and the mounting ring in the present invention; Figure 7 It is a schematic diagram of the connection structure between the sunshade plate and the mounting frame in the present invention; Figure 8 This is a schematic diagram of the connection structure between the support ring and the quartz glass slide in the present invention; Fig. 9 It is a schematic diagram of the connection structure between the bellows and the slider in the present invention; Fig.10 It is a schematic diagram of the connection structure between the servo motor and the fixing frame in the present invention; Fig.11 It is a schematic diagram of the connection structure between the sliding rod and the connecting rod in the present invention; Fig.12 It is a schematic diagram of the connection structure between the sleeve and the annular airbag in the present invention; Fig.13 for Figure 2 A magnified view of the structure at center.

[0018] In the figure: 1. gutta-percha tip; 2. Receiving plate; 3. Receiving groove; 4. Lampshade; 5. Ultraviolet light source; 6. Sleeve; 601. Annular airbag; 7. Channel opening; 701. Through hole; 8. Convex lens; 9. Fixed ring; 10. Fixed rod; 11. Fixed plate; 12. Connecting rope; 13. Screw rod; 14. Knob; 15. Support ring; 16. Shading plate; 17. Sliding rod; 18. Inlet pipe; 19. Mounting ring; 20. Servo motor; 21. Fixed frame; 22. Mounting frame; 23. Inner cavity; 24. Bellows; 25. Sliding block; 26. Through groove; 27. Quartz glass slide; 28. Inlet opening; 29. ​​Circular opening; 30. Collimating lens; 31. Connecting rod; 32. Piston; 33. Strip opening; 34. Arc strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention provides a technical solution: See also Figure 1-Figure 13 As shown, a dental-specific gutta-percha tip ultraviolet disinfection device comprises a receiving tray 2 with a plurality of receiving slots 3, the receiving slots 3 are used to place gutta-percha tips 1, and an ultraviolet light source 5 is arranged in the middle of the receiving tray 2 for disinfecting the gutta-percha tips 1; The method comprises: a plurality of receiving grooves 3 are arranged in parallel on the receiving plate 2 outwardly from the center point of the receiving plate 2, the plurality of receiving grooves 3 are arranged at equal intervals, and the gutta-percha tip 1 is arranged in the receiving groove 3 in parallel along the axial direction of the receiving groove 3; A lampshade 4 is disposed on the ultraviolet light source 5 and has a channel opening 7 corresponding to the receiving groove 3, so that the light from the ultraviolet light source 5 can be irradiated into the receiving groove 3 through the channel opening 7; The collimating lens assembly includes two collimating lenses 30 symmetrically arranged about the center of the channel opening 7. The two collimating lenses 30 can move relatively close to or away from each other along the radial direction of the channel opening 7 to change the angle between the two light beams gathered into parallel line beams to irradiate the surface of the gutta-percha tip 1.

[0021] The accommodating tray 2 is used to store gutta-percha tips 1 of different models and sizes. A plurality of accommodating grooves 3 are provided on the top of the accommodating tray 2. The accommodating grooves 3 are provided to provide space for placing the gutta-percha tips 1. The ultraviolet light source 5 is located at the center of the accommodating tray 2. The bottom is fixedly connected to the inner bottom wall of the accommodating tray 2. The lampshade 4 covers the ultraviolet light source 5. The bottom of the lampshade 4 is also fixedly connected to the inner bottom wall of the accommodating tray 2. The lampshade 4 covers the ultraviolet light source 5 inside the lampshade 4 to prevent a large amount of light emitted by the ultraviolet light source 5 from being emitted to the outside. The number of accommodating grooves 3 is the same as that of channel openings 7. Each channel opening 7 corresponds horizontally to one of the accommodating grooves 3, so that ultraviolet light can pass through the channel openings 7 to reach the accommodating grooves 3. The collimating lens 30 is a combination of multiple collimating lenses. The shading plate 16 and the bellows 24 shield the ultraviolet light so that the ultraviolet light can only pass through the collimating lens 30. When the ultraviolet light emitted by the ultraviolet light source 5 irradiates the channel opening 7, the light irradiates the two collimating lenses 30. The collimating lens 30 can collimate the focused light to make the propagation direction of the light more parallel. After passing through the collimating lens, the originally focused ultraviolet light will become more consistent in the propagation direction, thereby improving the shape of the light beam to a certain extent, making it closer to a line beam shape. After the ultraviolet light is gathered, the energy is highly concentrated and has a high energy density. In sterilization applications, high energy density means that more energy is delivered to bacteria per unit area and time. Then, the two light beams are irradiated onto the gutta-percha tip 1, and the two collimating lenses 30 are driven to move back and forth or relative to each other, so as to adjust the distance between the two collimating lenses 30, so that the two light beams can irradiate the outer wall of the gutta-percha tip 1, and then the two collimating lenses 30 are driven to rotate, so that the light beams can rotate around the outer wall of the gutta-percha tip 1, so that every area of ​​the outer wall of the gutta-percha tip 1 can be irradiated; The angle of the collimating lens 30 in each channel opening 7 can be adjusted individually to accommodate gutta-percha tips 1 of different sizes and diameters.

[0022] See also Figure 6-Figure 9The collimating lens assembly further includes two shading plates 16 for shading light, and retractable bellows 24 on both sides of the collimating lens 30, which are used to drive the collimating lens 30 to move back and forth when alternately retracting; The driving unit is arranged between the two collimating lenses 30 , and is used to drive the collimating lenses 30 to make the light move in a circle around the gutta-percha tip 1 when the light is aimed at the outer wall of the gutta-percha tip 1 .

[0023] The bellows 24 on both sides of the collimating lens 30 are alternately extended and retracted, thereby driving the collimating lens 30 to move back and forth, and the driving unit is used to drive the two collimating lenses 30 to rotate. Fig.13 As shown in the figure, the channel opening 7 is connected. When the ultraviolet light emitted by the ultraviolet light source 5 on the left enters the channel opening 7, the ultraviolet light will irradiate the shading plate 16, and the shading plate 16 will block the ultraviolet light, so the light can only pass through the collimating lens 30.

[0024] See also Figure 3 and Figure 5 , also includes, The angle adjustment mechanism is arranged inside the channel opening 7 and includes at least two deformable convex lenses 8 for changing the illumination angle when the light beam passes through. A stretching component for controlling the deformation of the convex lenses 8 is connected between the two convex lenses 8.

[0025] The ultraviolet light passes through the collimating lens 30 and reaches the position of the two convex lenses 8. Since the convex lenses 8 are made of transparent plastic material, such as Figure 4 When the center parts of the two convex lenses 8 are bent outward by using a stretching member, the two beams of ultraviolet light will be gathered toward the middle, and when the midline parts of the two convex lenses 8 are bent inward at the same time, the two beams of light will expand outward. Figure 4 It can be seen that when the convex lens 8 is bent inward, it is equivalent to being concave in the middle. The principle is the same as that of a concave lens. Since the convex lens 8 is concave in the middle, the rays will be refracted when entering and leaving the concave area in the middle of the convex lens 8. When entering the upper surface of the convex lens 8, the rays are refracted toward the normal direction, and when leaving the lower surface, they are refracted away from the normal direction. Although the edge thickness does not change, the refraction effect of the concave area in the middle will change the propagation direction of the rays. like Figure 4 The dotted line in the figure indicates the direction of light. When the convex lens 8 is bent into a concave lens shape, the normal direction of its surface changes at different positions. The more concave the convex lens 8 is, the greater the change in the normal direction at the edge and the center. The flatter the convex lens 8 is, the more stable the normal direction is. It can be compared to a funnel shape. When the light passes through the curved wall of the funnel, which is analogous to the concave convex lens 8, it will be gradually guided to the outside of the funnel. Moreover, the more curved the funnel is, the more concave the convex lens 8 is, and the more obvious the effect of guiding the light outward is. Therefore, the more concave the convex lens 8 is, the more the light expands outward, and the flatter it is, the straighter the light is. The shape of the gutta-percha point 1 is a cone with one end being small and the other end being large. The smaller end is usually the first part to be inserted into the root canal, which helps the gutta-percha point 1 to smoothly enter the narrow part of the root canal. As the gutta-percha point 1 is gradually inserted, the larger end can better fill the wider part of the root canal, so that the entire root canal is filled more tightly and evenly. There are many types of gutta-percha tips 1, and these types are usually distinguished based on their size specifications. The size specifications of the gutta-percha tips 1 include parameters such as length, taper and diameter. For different types of gutta-percha tips 1, the sizes of the two ends are also different. Therefore, in order to make the ultraviolet light fit the outer wall of the gutta-percha tip 1, it is necessary to adjust the concave degree of the convex lens 8 so that the irradiation angle of the ultraviolet light can fit the outer wall of the gutta-percha tip 1 and disinfect its outer wall. Since the ultraviolet light beam is concentrated, the intensity is relatively concentrated; When the light beam rotates around the outer wall of the gutta-percha tip 1, the outer wall of the gutta-percha tip 1 is irradiated by the same ultraviolet light, and the outer wall of the gutta-percha tip 1 can be irradiated by the ultraviolet light. Since the ultraviolet light will not be blocked by other objects after passing through the convex lens 8, it will not be weakened and the intensity is relatively stable. It is then directly irradiated onto the gutta-percha tip 1 for disinfection to avoid the situation where some areas cannot be irradiated or the disinfection is not thorough due to excessive light dispersion.

[0026] See also Figure 6-Figure 13 The collimating lens assembly further includes a support ring 15, the support ring 15 is provided with an annular groove, a quartz glass slide 27 is fixedly mounted on the inner wall of the annular groove, the quartz glass slide 27 is annular, two shading plates 16 are arranged inside the support ring 15, the outer walls of the shading plates 16 are against the outer walls of the quartz glass slide 27, a spacing is left between the two shading plates 16, two mounting frames 22 are arranged in the spacing, and the top of the mounting frame 22 is against the bottom of the upper shading plate 16; The bottom of the mounting frame 22 abuts against the top of the lower shading plate 16, the mounting frame 22 is provided with an inner cavity 23, two bellows 24 are arranged inside the inner cavity 23, the collimating lens 30 is located between the two bellows 24, a slider 25 is placed inside the inner cavity 23, the slider 25 is provided with a circular opening 29, the collimating lens 30 is fixedly installed inside the circular opening 29, and the ends of the two bellows 24 that are close to each other are fixedly connected to the outer wall of the slider 25; The outer walls on both sides of the mounting frame 22 are provided with strip openings 33, and an air inlet opening 28 is provided at one end of the mounting frame 22. An arc strip 34 is fixedly installed on the outer wall of the sunshade 16, and a through groove 26 is left between the two arc strips 34. The air inlet opening 28 extends to the interior of the support ring 15 through the through groove 26. The interior of the support ring 15 is connected with the air inlet opening 28, and the inner wall of the through groove 26 abuts against the outer wall of the mounting frame 22. The arc strip 34 is rotatably connected to the inner wall of the support ring 15.

[0027] The outer wall of the support ring 15 is fixedly connected to the inner wall of the channel opening 7, the support ring 15 corresponds horizontally to the convex lens 8, the center of the support ring 15 and the center of the convex lens 8 are in the same horizontal plane, the outer wall of the quartz glass slide 27 is fixedly connected to the inner wall of the support ring 15, the shading plate 16 is located inside the support ring 15, and its outer wall is against the side of the quartz glass slide 27 located inside the support ring 15, the outer wall of the shading plate 16 is fixedly connected to the outer wall of the arc strip 34, the two installation frames 22 are located between the two shading plates 16 and the two arc strips 34, the top of the installation frame 22 is fixedly connected to the bottom of the upper shading plate 16, and the bottom of the installation frame 22 is fixedly connected to the top of the lower shading plate 16; like Fig.13 It is shown in the figure that the channel opening 7 is connected. When the ultraviolet light emitted by the ultraviolet light source 5 on the left enters the channel opening 7, the ultraviolet light will pass through the quartz glass slide 27 and irradiate the shading plate 16. The quartz glass slide 27 is transparent and allows the ultraviolet light to pass through. The shading plate 16 will block the ultraviolet light. Therefore, the ultraviolet light will enter the inner cavity 23 through the strip opening 33 and irradiate the bellows 24 and the slider 25. Since the slider 25 and the bellows 24 will also block the light, only the collimating lens 30 in the circular opening 29 can allow the ultraviolet light to pass through. Therefore, the ultraviolet light will become two light beams after passing through the collimating lens 30, and then irradiate the convex lens 8. Before the light beam irradiates the convex lens 8, the direction of the light beam is straight, and it will be refracted only after passing through the convex lens 8.

[0028] See also Figure 6-Figure 11 The support ring 15 is plugged with an air intake pipe 18, the bottom end of the air intake pipe 18 extends to the inside of the support ring 15, the outer wall of the air intake pipe 18 is fixedly connected to the inner wall of the support ring 15, the air intake pipe 18 is sleeved with a slide rod 17, a connecting rod 31 is fixedly installed on the inner top wall of the slide rod 17, a piston 32 is fixedly installed on the bottom end of the connecting rod 31, the piston 32 is located inside the air intake pipe 18 and is tightly attached to the inner wall of the air intake pipe 18.

[0029] Since the light shielding plate 16 and the arc-shaped strip 34 block the cavity opened in the support ring 15, the cavity in the support ring 15 has a closed space, and gas can only enter and exit through the through groove 26, and the through groove 26 is connected to the bellows 24 inside the mounting frame 22. The slide bar 17 is twisted to rotate along the outer wall of the air inlet pipe 18, and the slide bar 17 will move downward along the air inlet pipe 18 while rotating. The slide bar 17 drives the connecting rod 31 and the piston 32 to move downward together. The piston 32 can push the gas in the air inlet pipe 18 into the cavity of the support ring 15. The cavity itself has gas in the initial state. Therefore, when excess gas enters, the gas in the cavity will reach the air inlet opening 28 through the through groove 26, and then pass through the air inlet opening 28 into the bellows 24, and the bellows 24 corresponding to the air inlet opening 28 will expand and stretch; The bellows 24 slowly extends and pushes the slider 25 to move, so that the slider 25 is pushed to a position close to the center point of the support ring 15, and the light beam is adjusted to be close to the center point. For some gutta-percha tips 1 with smaller tips, the light beam can be adjusted to be close to the center point so that the light beam first contacts the outer wall of the small end of the gutta-percha tip 1, and then the light beam is refracted through the convex lens 8 to tilt the light beam. After the light beam is tilted, if the light beam is too far from the small end of the gutta-percha tip 1, the light beam can be further adjusted to be close to the center point. The slide bar 17 is twisted in the opposite direction to move the piston 32 upward along the air inlet pipe 18, and then the gas in the cavity will be sucked into the air inlet pipe 18, and then the bellows 24 directly corresponding to the air inlet opening 28 will shrink, and pull the slider 25 and the collimating lens 30 away from the center point of the support ring 15, so that when facing some gutta-percha tips 1 with larger ports, the light beam can move to a position away from the center line point of the gutta-percha tip 1, so that the light beam moves to the outer wall of the gutta-percha tip 1; When the port of gutta-percha tip 1 is small, the light beam moves inward, and when the port of gutta-percha tip 1 is large, the light beam moves outward; When the slide bar 17 is turned, the two light beams need to be at the same level, so that when the air inlet pipe 18 is evacuating or introducing air into the cavity in the support ring 15, the distance from the two air inlet openings 28 is the same, so that the two bellows 24 can be extended at the same time. Because the two sides of the support ring 15 are symmetrical, the distances from the bellows 24 on both sides to the air inlet at the bottom end of the middle air inlet pipe 18 are the same, and the pressure difference generated by the airflow on both sides is the same, so that the gas in the bellows 24 on both sides will flow to the middle at the same time, and in the flow process, because the initial conditions on both sides are the same, the air pressure in the bellows 24, the position from the middle, etc. are the same, according to the flow law of the gas, the amount of gas in the bellows 24 on both sides flowing to the middle is also the same, so that after the two bellows 24 lose the same amount of gas, the remaining gas will be redistributed evenly under the effect of the pressure difference between the inside and outside of the bellows 24 (the air pressure in the bellows 24 is greater than the external air pressure), so that the bulges of the bellows 24 on both sides are the same size; Therefore, when gas is input into the cavity in the support ring 15, the bellows 24 on both sides can be propped up at the same time, and after the gas is extracted, the bellows 24 on both sides can also be retracted at the same time.

[0030] See also Figure 5 The angle adjustment mechanism also includes two fixing rings 9, which are symmetrically arranged between the two convex lenses 8. The outer wall of the convex lens 8 is against the outer wall of the fixing ring 9. A screw rod 13 is arranged between the two fixing rings 9. Two connecting ropes 12 are wound around the outer wall of the screw rod 13. A fixing plate 11 is fixedly installed at one end of the two connecting ropes 12 away from the screw rod 13. One end of the fixing plate 11 away from the connecting rope 12 is fixedly connected to the outer wall of the convex lens 8. The fixing plate 11 is located at the midline point of the convex lens 8.

[0031] One end of the two connecting ropes 12 away from the fixed disk 11 is fixedly connected to the outer wall of the screw rod 13, so that when the screw rod 13 is turned, the two connecting ropes 12 will be wound around the screw rod 13, and then the end of the connecting rope 12 connected to the fixed disk 11 will be tightened, and then the fixed disk 11 will also be pulled in the direction of the screw rod 13, thereby pulling the center of the convex lens 8 to deform in the direction of the screw rod 13. Since the fixing ring 9 blocks the convex lens 8, the outer wall of the fixing ring 9 abuts against the outer wall of the convex lens 8. Therefore, when the center point of the convex lens 8 is pulled, the outer wall of the convex lens 8 will slide along the outer wall of the fixing ring 9; The fixing ring 9 prevents the convex lens 8 from moving as a whole when the center part of the convex lens 8 is pulled, so that the convex lens 8 cannot be deformed, and the convex lens 8 is larger than the fixing ring 9, so the center point of the convex lens 8 will not pass through the fixing ring 9 when it is pulled. Figure 5 As shown in FIG. 1 , the edge of the convex lens 8 will remain on the side of the fixing ring 9 away from the screw rod 13, and the center point of the convex lens 8 will protrude toward the screw rod 13, so that the two convex lenses 8 appear Figure 4 The two convex lenses 8 are concave inwards, and then the ultraviolet light irradiated on the convex lenses 8 can be refracted outwards, such as Figure 4 The direction of the middle dotted line represents the direction of the refracted light. The more the convex lens 8 is concave, the greater the angle at which the ultraviolet light is refracted. On the contrary, the less the convex lens 8 is concave, the smaller the angle at which the ultraviolet light is refracted, so as to adapt to different sizes of gutta-percha tips 1. Since the convex lens 8 is made of plastic, it is elastic in itself. When the depression of the convex lens 8 needs to be adjusted to be smaller, it is only necessary to reversely twist the screw 13 to relax the tension on the connecting rope 12, and then the convex lens 8 will automatically rebound using its own elastic potential energy. It is worth pointing out that due to the characteristics of the ultraviolet light itself, even if it is adjusted to a shape close to a light beam, the ultraviolet light beam will not become as thin as a laser. Therefore, when the ultraviolet light beam irradiates the outer wall of the gutta-percha tip 1, since the light beam is relatively wide, part of the light beam can completely irradiate the end of the smaller end of the gutta-percha tip 1. In order to distinguish the model of each gutta-percha tip 1, a marker of a different color will be connected to the wider end of each gutta-percha tip 1, and the marker will wrap the wider end of the gutta-percha tip 1. In root canal treatment, there is no need to insert the marker into the root canal. Therefore, even if the end of the marker away from the gutta-percha tip 1 is not sterilized, it will not affect the use of the gutta-percha tip 1.

[0032] See also Figure 6 and Fig.13 The channel opening 7 is provided with two through holes 701, the channel opening 7 is communicated with the through holes 701, the slide rod 17 and the air inlet pipe 18 are located inside one of the through holes 701, the slide rod 17 extends to the outside of the channel opening 7 through the through hole 701, the screw rod 13 is located inside the other through hole 701, and extends to the outside of the channel opening 7 through the through hole 701.

[0033] The two through holes 701 provide spaces for the slide bar 17 and the screw rod 13 to extend to the outside of the channel opening 7 , so that the user can turn the slide bar 17 or the screw rod 13 outside the lampshade 4 without inserting the hand into the channel opening 7 .

[0034] See also Figure 6-Figure 10 The driving part includes a servo motor 20 fixedly mounted on the inner wall of the support ring 15, a driving end of the servo motor 20 is fixedly connected to a fixing frame 21, a mounting ring 19 is arranged on the periphery of the servo motor 20, both ends of the fixing frame 21 away from the servo motor 20 are fixedly connected to the outer wall of the mounting ring 19, and one end of the two mounting frames 22 away from the through groove 26 is fixedly connected to the outer wall of the mounting ring 19, and the mounting ring 19 is not connected to the support ring 15.

[0035] The servo motor 20 is fixed on the inner wall of the support ring 15 and is used to drive the fixing frame 21 to rotate, and then the fixing frame 21 drives the mounting ring 19 to rotate. When the mounting ring 19 rotates, the two mounting frames 22 can be driven to rotate, so as to realize the rotation of the ultraviolet light beam, so that the light beam can rotate around the gutta-percha tip 1, so that the outer wall of the gutta-percha tip 1 can be disinfected. Since the servo motor 20 is fixed in the support ring 15, Fig.13 As shown in the figure, the support ring 15 is close to the position of the ultraviolet light source 5, so the power supply of the servo motor 20 and the power supply of the ultraviolet light source 5 come from the same place, but the starting methods of the ultraviolet light source 5 and the servo motor 20 are separate. A control switch of the servo motor 20 is installed in the lampshade 4, and the switch can be manually opened or closed to control the start and close of the servo motor 20.

[0036] See also Figure 3 and Fig.12 A sleeve 6 is fixedly installed on the inner wall of the accommodating groove 3, and an annular airbag 601 is fixedly installed on the inner wall of the sleeve 6. The interior of the annular airbag 601 is hollow and made of elastic material. The end of the gutta-percha tip 1 with a label is inserted into the interior of the annular airbag 601 and tightly abuts against the inner wall of the annular airbag 601.

[0037] One end of the sleeve 6 is fixedly connected to the inner wall of the receiving groove 3, and the outer wall of the annular airbag 601 is fixedly connected to the inner wall of the sleeve 6. The sleeve 6 is used to support the annular airbag 601 in the receiving groove 3. The end of the gutta-percha tip 1 with the marker is inserted into the annular airbag 601. Since the annular airbag 601 is filled with gas, the annular airbag 601 will swell. Therefore, after the end of the gutta-percha tip 1 with the marker is inserted into the annular airbag 601, the annular airbag 601 will squeeze the gutta-percha tip 1, thereby fixing the gutta-percha tip 1. Root canal treatment, so it is not only short but also very light, so after being inserted into the annular airbag 601, it will not tilt. Since the annular airbag 601 is made of a material with good elasticity, such as rubber or soft plastic, when different types of gutta-percha tips 1 are inserted in the middle, the annular airbag 601 can be elastically deformed. For smaller types of gutta-percha tips 1, the annular airbag 601 will shrink appropriately around the gutta-percha tip 1 after it is inserted, and fit closely to the surface of the gutta-percha tip 1, and use the elasticity of the material itself to generate an inward extrusion force, thereby fixing the gutta-percha tip 1; For larger gutta-percha tips 1, the annular airbag 601 will be stretched open, but because the elastic limit range of the material is appropriate, it can still exert sufficient clamping force on the gutta-percha tip 1 while being stretched open, just like an elastic clip that can adapt to objects of different thicknesses and provide appropriate clamping force through its own elastic deformation.

[0038] See also Figure 5 A knob 14 is fixedly installed on the top of the screw rod 13 , and two fixing rods 10 are fixedly installed on the outer wall of the fixing ring 9 . One end of the fixing rod 10 away from the fixing ring 9 is fixedly connected to the inner wall of the channel opening 7 .

[0039] After the knob 14 is installed at the top of the screw rod 13, the fingers can conveniently hold the knob 14 for operation. Compared with directly twisting the screw rod 13 with the hands, the knob 14 provides a better gripping position for the fingers, making the operation more comfortable and natural. The screw rod 13 is threadedly connected to one of the through holes 701, so when the screw rod 13 is twisted, the screw rod 13 will rotate in the through hole 701, so as to ensure that the screw rod 13 can be in a vertical state and avoid tilting. One end of the two fixing rods 10 is fixedly connected to the inner wall of the channel opening 7 , and the other end is fixedly connected to the outer wall of the fixing ring 9 , so as to fix and support the fixing ring 9 in the channel opening 7 , thereby ensuring the stability of the convex lens 8 .

Claims

1. A dental gutta-percha ultraviolet disinfection device, comprising a receiving tray (2) provided with a plurality of receiving grooves (3), the receiving grooves (3) being used to place the gutta-percha tips (1), and an ultraviolet light source (5) being arranged in the middle of the receiving tray (2) and being used to disinfect the gutta-percha tips (1); It is characterized in that include, The gutta-percha tip (1) is arranged in the receiving groove (3) in parallel along the axial direction of the receiving groove (3); A lampshade (4) is arranged on the ultraviolet light source (5), and is provided with a channel opening (7) corresponding to the receiving groove (3) inside, so that light from the ultraviolet light source (5) can be irradiated into the receiving groove (3) through the channel opening (7); The collimating lens assembly comprises two collimating lenses (30) arranged symmetrically about the center of the channel opening (7); the two collimating lenses (30) can move relatively close to or away from each other along the radial direction of the channel opening (7) to change the angle between two light beams gathered into parallel line beams to irradiate the surface of the gutta-percha tip (1).

2. A dental gutta-percha ultraviolet disinfection device as claimed in claim 1, characterized in that: The collimating lens assembly also includes two shading plates (16) for shading light, and retractable bellows (24) on both sides of the collimating lens (30), which are used to drive the collimating lens (30) to move back and forth when alternately retracting and contracting; The driving unit is arranged between the two collimating lenses (30) and is used to drive the collimating lenses (30) to make the light move in a circular motion around the gutta-percha tip (1) when the light is aimed at the outer wall of the gutta-percha tip (1).

3. A dental gutta-percha ultraviolet disinfection device as claimed in claim 2, characterized in that: Also includes, The angle adjustment mechanism is arranged inside the channel opening (7) and comprises at least two deformable convex lenses (8) for changing the illumination angle when the light beam passes through. A stretching component for controlling the deformation of the convex lenses (8) is connected between the two convex lenses (8).

4. A dental gutta-percha ultraviolet disinfection device as claimed in claim 3, characterized in that: The collimating lens assembly further comprises a support ring (15), the support ring (15) being provided with an annular groove, a quartz glass plate (27) being fixedly mounted on the inner wall of the annular groove, the quartz glass plate (27) being annular, two shading plates (16) being arranged inside the support ring (15), the outer walls of the shading plates (16) being butted against the outer walls of the quartz glass plate (27), a spacing being left between the two shading plates (16), two mounting frames (22) being arranged within the spacing, the top of the mounting frame (22) being butted against the bottom of the upper shading plate (16); The bottom of the mounting frame (22) abuts against the top of the lower shading plate (16); the mounting frame (22) is provided with an inner cavity (23); the two bellows (24) are arranged inside the inner cavity (23); the collimating lens (30) is located between the two bellows (24); a slider (25) is placed inside the inner cavity (23); the slider (25) is provided with a circular opening (29); the collimating lens (30) is fixedly mounted inside the circular opening (29); and the adjacent ends of the two bellows (24) are fixedly connected to the outer wall of the slider (25); The outer walls of both sides of the installation frame (22) are provided with strip openings (33), one end of the installation frame (22) is provided with an air inlet opening (28), an arc strip (34) is fixedly mounted on the outer wall of the shading plate (16), a through slot (26) is left between the two arc strips (34), the air inlet opening (28) extends to the interior of the support ring (15) through the through slot (26), the interior of the support ring (15) is communicated with the air inlet opening (28), the inner wall of the through slot (26) abuts against the outer wall of the installation frame (22), and the arc strip (34) is rotatably connected to the inner wall of the support ring (15).

5. A dental gutta-percha ultraviolet disinfection device as claimed in claim 4, characterized in that: The support ring (15) is plugged with an air intake pipe (18), the bottom end of the air intake pipe (18) extends to the inside of the support ring (15), the outer wall of the air intake pipe (18) is fixedly connected to the inner wall of the support ring (15), the air intake pipe (18) is sleeved with a slide rod (17), a connecting rod (31) is fixedly mounted on the inner top wall of the slide rod (17), a piston (32) is fixedly mounted on the bottom end of the connecting rod (31), and the piston (32) is located inside the air intake pipe (18) and is tightly attached to the inner wall of the air intake pipe (18).

6. A dental gutta-percha ultraviolet disinfection device as claimed in claim 5, characterized in that: The angle adjustment mechanism further comprises two fixing rings (9) symmetrically arranged between the two convex lenses (8), the outer wall of the convex lens (8) abutting against the outer wall of the fixing ring (9), a screw rod (13) being arranged between the two fixing rings (9), the outer wall of the screw rod (13) being wound with two connecting ropes (12), the ends of the two connecting ropes (12) away from the screw rod (13) being fixedly mounted with a fixing plate (11), the ends of the fixing plate (11) away from the connecting ropes (12) being fixedly connected to the outer wall of the convex lens (8), and the fixing plate (11) being located at the midline point of the convex lens (8).

7. A dental gutta-percha ultraviolet disinfection device as claimed in claim 6, characterized in that: The channel opening (7) is provided with two through holes (701), the channel opening (7) is in communication with the through holes (701), the slide rod (17) and the air inlet pipe (18) are located inside one of the through holes (701), the slide rod (17) extends to the outside of the channel opening (7) through the through hole (701), and the screw rod (13) is located inside the other through hole (701) and extends to the outside of the channel opening (7) through the through hole (701).

8. A dental gutta-percha ultraviolet disinfection device as claimed in claim 7, characterized in that: The driving unit comprises a servo motor (20) fixedly mounted on the inner wall of the support ring (15); a driving end of the servo motor (20) is fixedly connected to a fixing frame (21); a mounting ring (19) is arranged on the periphery of the servo motor (20); both ends of the fixing frame (21) away from the servo motor (20) are fixedly connected to the outer wall of the mounting ring (19); both ends of the two mounting frames (22) away from the through slot (26) are fixedly connected to the outer wall of the mounting ring (19); and the mounting ring (19) is not connected to the support ring (15).

9. A dental gutta-percha ultraviolet disinfection device as claimed in claim 1, characterized in that: A sleeve (6) is fixedly mounted on the inner wall of the receiving groove (3), and an annular airbag (601) is fixedly mounted on the inner wall of the sleeve (6). The interior of the annular airbag (601) is hollow and is made of elastic material. The end of the gutta-percha tip (1) with a label is inserted into the interior of the annular airbag (601) and is tightly against the inner wall of the annular airbag (601).

10. A dental gutta-percha ultraviolet disinfection device as claimed in claim 6, characterized in that: A knob (14) is fixedly mounted on the top end of the screw rod (13), and two fixing rods (10) are fixedly mounted on the outer wall of the fixing ring (9). One end of the fixing rod (10) away from the fixing ring (9) is fixedly connected to the inner wall of the channel opening (7).

Images