Sealing mechanism, lighting structure of sealing mechanism and root canal preparation machine bending machine head

Abstract

The utility model provides a sealing mechanism, a lighting structure of the sealing mechanism and a root canal preparation machine bending machine head, and belongs to the technical field of root canal preparation equipment. The sealing mechanism comprises a base, a cover plate and a first sealing piece, wherein an accommodating cavity is formed in the base; the cover plate is provided with a protruding part, the protruding part is inserted into the containing cavity, so that a sealed space is formed in the containing cavity, and the sealed space is used for installing a circuit board; grooves are formed in the two sides of the protruding part, and the first sealing pieces are arranged in the grooves and used for preventing external water vapor from entering the sealed space. When the bent handpiece of the root canal preparation machine is cooked and disinfected, water vapor cannot enter the sealed space, so that the water vapor is prevented from being contacted with the circuit board, and the circuit board is effectively protected from being damaged by the water vapor generated in the cooking and disinfecting process.

Description

Technical Field

[0001] This utility model belongs to the technical field of root canal preparation equipment, specifically relating to a sealing mechanism and its lighting structure, and a curved head of a root canal preparation machine. Background Technology

[0002] In the field of dental treatment, root canal preparation is one of the important steps in treating pulpitis and periapical periodontitis. As a key tool in this process, the performance and reliability of the root canal preparation machine directly affect the treatment outcome and patient comfort. With continuous technological advancements, modern root canal preparation machines are generally equipped with LED lights at the front of the machine head to provide ample illumination, helping dentists to more clearly observe the internal condition of the root canal, thereby improving the accuracy and efficiency of treatment.

[0003] Currently, most root canal preparation machines on the market have their LED lights and connected circuit boards placed directly inside the head. While this design achieves the lighting function, it has revealed a series of problems in actual use. Especially during the sterilization process, due to the small and enclosed space inside the head, moisture can easily penetrate to the circuit board and wiring areas. This causes the circuit board surface and wiring to blacken due to prolonged high temperature and humidity, and the solder joints to corrode, thus shortening the lifespan of the equipment. Utility Model Content

[0004] In view of this, in order to solve the problems in the prior art, this utility model proposes a sealing mechanism. The technical problem to be solved is: how to prevent water vapor from penetrating into the circuit board and corroding the circuit board.

[0005] This utility model solves the above problems through the following technical means:

[0006] A sealing mechanism, comprising:

[0007] A base having a receiving cavity;

[0008] A cover plate with a protrusion is inserted into the receiving cavity to form a sealed space inside the receiving cavity, the sealed space being used to install a circuit board;

[0009] The first sealing element has grooves on both sides of the protrusion, and the first sealing element is disposed in the grooves. The first sealing element is used to prevent external moisture from entering the sealed space.

[0010] In this sealing mechanism, the protrusion is inserted into the receiving cavity to form a sealed space. The sealed space is used to install the circuit board. Grooves are provided on both sides of the protrusion, and a first sealing element is provided in the groove. The first sealing element is used to prevent external moisture from entering the sealed space. That is, the circuit board is isolated from the outside in the sealed space. When the root canal preparation machine bend head needs to be steamed and sterilized, moisture cannot enter the sealed space, avoiding contact between moisture and the circuit board, and effectively protecting the circuit board from damage caused by moisture generated during the steaming and sterilization process.

[0011] In one of the sealing mechanisms described above, a second sealing element is provided between the end of the protrusion and the circuit board. The second sealing element is used to prevent external moisture from entering the sealed space.

[0012] In one of the above-mentioned lighting structures, the first seal and the second seal are one of an O-ring, a gasket, or a potting layer.

[0013] The second objective of this invention is to provide a lighting structure:

[0014] A lighting structure, comprising:

[0015] The aforementioned sealing mechanism;

[0016] A light-emitting mechanism, comprising a circuit board and a light-emitting element, wherein the circuit board and the light-emitting element are both installed within the sealed space of the sealing mechanism, and the light-emitting element is electrically connected to the circuit board;

[0017] A light-transmitting structure is provided on the cover plate, and the light-transmitting structure is arranged opposite to the light-emitting element.

[0018] In this lighting structure, the circuit board and light-emitting components of the light-emitting mechanism are both installed within the sealed space of the sealing mechanism. When the root canal preparation machine head needs to be sterilized by boiling, since the circuit board and light-emitting components are both installed within the sealed space, the base and cover can effectively isolate moisture and prevent moisture from entering the sealed space, thus effectively protecting the circuit board from damage caused by moisture generated during the boiling sterilization process, thereby ensuring the service life of the lighting structure.

[0019] In one of the above-mentioned lighting structures, the light-emitting mechanism further includes a conductive post, which passes through the base and is electrically connected to the circuit board.

[0020] In one of the above-mentioned lighting structures, the light-transmitting structure is an optical fiber, the light-emitting element is an LED lamp, the optical fiber and the LED lamp are arranged opposite to each other, and the light emitted by the LED lamp can be transmitted to the outside of the sealing mechanism through the optical fiber.

[0021] The third objective of this utility model is to provide a curved head for a root canal preparation machine:

[0022] A root canal preparation machine bend head, comprising:

[0023] Gearbox;

[0024] A head assembly, wherein the gearbox is assembled within the head assembly, and the head assembly has a cavity;

[0025] The aforementioned lighting structure is installed within the cavity.

[0026] In this endodontic preparation machine's curved head, the circuit board and light-emitting components of the lighting structure are installed within a sealed space. The base and cover effectively isolate moisture, preventing it from entering the sealed space and protecting the circuit board from damage caused by moisture generated during sterilization. This, in turn, ensures the lifespan of the endodontic preparation machine's curved head. Furthermore, the head assembly has a cavity within which the lighting structure is installed. When the circuit board needs replacement, simply remove the lighting structure from the cavity to replace the circuit board—simple and convenient.

[0027] In the aforementioned root canal preparation machine curved head, the head assembly includes a head housing, a tail housing, a drive shaft, and a file assembly; the head housing and the tail housing are fixedly connected, and the gearbox is assembled inside the tail housing; the file assembly is rotatably connected to the end of the head housing away from the tail housing; one end of the drive shaft is drivenly connected to the gearbox, and the other end of the drive shaft is drivenly connected to the file assembly.

[0028] In the aforementioned root canal preparation machine curved head, a transmission cavity is provided inside the head housing, and a transmission shaft is rotatably connected to the transmission cavity. A first gear is provided at one end of the transmission shaft, a second gear is provided at the other end of the transmission shaft, and a third gear is provided at the output end of the gearbox. The first gear meshes with the third gear. The file assembly includes a rotating head and a file. The rotating head is rotatably connected to the end of the head housing away from the tail housing, and the file is mounted on the rotating head. A fourth gear is provided on the outer side of the rotating head, and the fourth gear meshes with the second gear.

[0029] In the aforementioned root canal preparation machine curved head, an assembly cavity is provided inside the head housing, and the end of the light-transmitting structure away from the light-emitting element passes through the assembly cavity and extends to the end of the head housing near the file.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0031] The sealing mechanism of this invention prevents moisture from entering the sealed space when the curved head of the root canal preparation machine needs to be steamed and sterilized, thus avoiding contact between moisture and the circuit board and effectively protecting the circuit board from damage caused by moisture generated during the steaming and sterilization process.

[0032] In this invention's lighting structure, the circuit board and light-emitting components are both installed within the sealed space. The base and cover effectively isolate moisture, preventing moisture from entering the sealed space and effectively protecting the circuit board from damage caused by moisture generated during the steaming and sterilization process.

[0033] The root canal preparation machine bending head of this utility model has an illumination structure installed inside a cavity. When the circuit board needs to be replaced, simply remove the illumination structure from the cavity to replace the circuit board, which is simple and convenient. Attached Figure Description

[0034] Figure 1 A schematic diagram of the curved head of a root canal preparation machine;

[0035] Figure 2 Exploded view of the curved head of a root canal preparation machine;

[0036] Figure 3 A sectional view of the curved head of a root canal preparation machine;

[0037] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0038] Figure 5 for Figure 3 Enlarged view of section B;

[0039] Figure 6 for Figure 3 Enlarged view of section C;

[0040] Figure 7 This is a schematic diagram of the lighting structure.

[0041] The meanings of the reference numerals in the attached figures are as follows:

[0042] 1. Sealing mechanism; 11. Base; 111. Receiving cavity; 12. Cover plate; 121. Protrusion; 122. Groove; 13. First seal; 14. Second seal; 2. Lighting structure; 21. Light-emitting mechanism; 211. Circuit board; 212. Light-emitting element; 22. Light-transmitting structure; 23. Conductive column; 3. Gearbox; 31. Third gear; 4. Head assembly; 41. Head housing; 411. Transmission cavity; 412. Assembly cavity; 42. Tail housing; 43. Drive shaft; 431. First gear; 432. Second gear; 44. File assembly; 441. Rotating head; 442. File; 443. Fourth gear; 45. Cavity. Detailed Implementation

[0043] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0045] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0046] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0048] Currently, most root canal preparation machine head designs place the LED light and its connected circuit board directly inside the head. While this design achieves the lighting function, it has revealed a series of problems in actual use. Especially during sterilization, due to the small and enclosed space inside the head, moisture easily penetrates to the circuit board and wiring areas, causing the circuit board surface and wiring to blacken due to prolonged high temperature and humidity, and the solder joints to corrode, thus shortening the lifespan of the equipment. Therefore, this invention provides a sealing mechanism and its lighting structure, as well as a curved head for root canal preparation machines, to prevent moisture penetration to the circuit board, corrosion of the circuit board, and to ensure the lifespan of the curved head for root canal preparation machines.

[0049] Example 1:

[0050] like Figure 3 , 4 As shown in Figure 7, the sealing mechanism 1 includes a base 11, a cover plate 12, and a first sealing member 13. The base 11 has a receiving cavity 111. The cover plate 12 is provided with a protrusion 121, which is inserted into the receiving cavity 111 to form a sealed space in the receiving cavity 111. The sealed space is used to install the circuit board 211. Grooves 122 are provided on both sides of the protrusion 121. The first sealing member 13 is disposed in the groove 122 and is used to prevent external moisture from entering the sealed space.

[0051] In this sealing mechanism 1, the protrusion 121 is inserted into the receiving cavity 111, forming a sealed space within the cavity 111. This sealed space is used to mount the circuit board 211. Grooves 122 are provided on both sides of the protrusion 121, and a first sealing element 13 is disposed within each groove 122. The first sealing element 13 is used to prevent external moisture from entering the sealed space, thus isolating the circuit board 211 from the outside. When the root canal preparation machine's curved head needs to be sterilized by steaming, moisture cannot enter the sealed space, preventing moisture from contacting the circuit board 211 and effectively protecting it from damage caused by moisture generated during the steaming process. As one embodiment, the first sealing element 13 is one of an O-ring, a gasket, or a potting compound.

[0052] like Figure 3 and 4 As shown, in this embodiment, a second sealing element 14 is provided between the end of the protrusion 121 and the circuit board 211. The second sealing element 14 is used to prevent external moisture from entering the sealed space. In this structure, the second sealing element 14 is located between the end of the protrusion 121 and the circuit board 211, further sealing the sealed space and thus further protecting the circuit board 211 from damage caused by moisture generated during the steam sterilization process. As one embodiment, the second sealing element 14 is one of an O-ring, a gasket, or a potting compound.

[0053] Example 2:

[0054] like Figures 2-7 As shown, this embodiment provides an illumination structure 2, including the sealing mechanism 1, the light-emitting mechanism 21, and the light-transmitting structure 22 described in Embodiment 1; the light-emitting mechanism 21 includes a circuit board 211 and a light-emitting element 212, both of which are installed in the sealed space, and the light-emitting element 212 is electrically connected to the circuit board 211; the light-transmitting structure 22 passes through the cover plate 12, and the light-transmitting structure 22 is arranged opposite to the light-emitting element 212.

[0055] It should be noted that this lighting structure 2 is installed on the curved head of the root canal preparation machine to provide illumination when the machine is in operation. In this lighting structure 2, the circuit board 211 and the light-emitting element 212 of the light-emitting mechanism 21 are both installed within the sealed space of the sealing mechanism 1. When the curved head of the root canal preparation machine needs to be sterilized by boiling, since the circuit board 211 and the light-emitting element 212 are both installed within the sealed space, the base 11 and the cover plate 12 can effectively isolate moisture, preventing moisture from entering the sealed space and effectively protecting the circuit board 211 from damage caused by moisture generated during the boiling sterilization process, thereby ensuring the service life of the lighting structure 2. When the curved head of the root canal preparation machine is in operation, since the light-transmitting structure 22 passes through the cover plate 12 and is positioned opposite to the light-emitting element 212, the light emitted by the light-emitting element 212 can be transmitted through the light-transmitting structure 22 to the outside of the sealing mechanism 1, illuminating the area to be worked on and facilitating the user's operation of the curved head of the root canal preparation machine.

[0056] like Figure 7 As shown, in this embodiment, the light-emitting mechanism 21 further includes a conductive post 23, which passes through the base 11 and is electrically connected to the circuit board 211. In this structure, the conductive post 23 can be connected to an external power source to provide power to the circuit board 211.

[0057] like Figure 2 and 3 As shown, in this embodiment, the light-transmitting structure 22 is an optical fiber, and the light-emitting element 212 is an LED lamp. The optical fiber and the LED lamp are arranged opposite to each other, and the light emitted by the LED lamp can be conducted to the outside of the sealing mechanism 1 through the optical fiber. In this structure, the light-transmitting structure 22 is an optical fiber, and the optical fiber and the LED lamp are arranged opposite to each other, that is, the light emitted by the LED lamp can enter into the optical fiber, and the optical fiber can effectively conduct the light emitted by the LED lamp to the working area. As one embodiment, the light-emitting element 212 can be other types of light-emitting elements, which are not limited here.

[0058] Example 3:

[0059] like Figures 1-7 As shown, it includes a gearbox 3, a head assembly 4, and the lighting structure 2 described in Embodiment 2; the gearbox 3 is assembled inside the head assembly 4, and the head assembly 4 has a cavity 45; the lighting structure 2 is installed inside the cavity 45.

[0060] When using the curved head of this root canal preparation machine, the gearbox 3 drives the head assembly 4, and the lighting structure 2 illuminates the working area. Since the circuit board 211 and the light-emitting element 212 of the lighting structure 2 are both installed within the sealed space, the base 11 and the cover plate 12 effectively isolate moisture, preventing moisture from entering the sealed space and effectively protecting the circuit board 211 from damage caused by moisture generated during the sterilization process, thus ensuring the service life of the curved head of the root canal preparation machine. Furthermore, the head assembly 4 has a cavity 45; the lighting structure 2 is installed within the cavity 45. When the circuit board 211 needs to be replaced, it can be easily and conveniently replaced simply by removing the lighting structure 2 from the cavity 45.

[0061] like Figures 1-6As shown, in this embodiment, the head assembly 4 includes a head housing 41, a tail housing 42, a drive shaft 43, and a file needle 442 assembly 44; the head housing 41 and the tail housing 42 are fixedly connected, and the gearbox 3 is assembled inside the tail housing 42; the file needle 442 assembly 44 is rotatably connected to the end of the head housing 41 away from the tail housing 42; one end of the drive shaft 43 is drivenly connected to the gearbox 3, and the other end of the drive shaft 43 is drivenly connected to the file needle 442 assembly 44. Specifically, the head housing 41 is provided with a transmission cavity 411, the transmission shaft 43 is rotatably connected to the transmission cavity 411, one end of the transmission shaft 43 is provided with a first gear 431, the other end of the transmission shaft 43 is provided with a second gear 432, and the output end of the gearbox 3 is provided with a third gear 31. The first gear 431 meshes with the third gear 31. The file needle 442 assembly 44 includes a rotating head 441 and a file needle 442. The rotating head 441 is rotatably connected to the end of the head housing 41 away from the tail housing 42. The file needle 442 is mounted on the rotating head 441. A fourth gear 443 is provided on the outside of the rotating head 441. The fourth gear 443 meshes with the second gear 432. When the curved head of the root canal preparation machine is working, the gearbox 3 is activated. The output end of the gearbox 3 rotates, driving the third gear 31. The third gear 31 meshes with the first gear 431. The drive shaft 43 is rotatably connected inside the head housing 41, thereby enabling the gearbox 3 to drive the drive shaft 43 to rotate. Since the rotating head 441 is rotatably connected to the end of the head housing 41 away from the tail housing 42, the file 442 is installed on the rotating head 441. A fourth gear 443 is provided on the outside of the rotating head 441. The fourth gear 443 meshes with the second gear 432. The drive shaft 43 rotates, thereby driving the rotating head 441 to rotate, driving the file 442 to work, thus realizing the operation of the curved head of the root canal preparation machine.

[0062] like Figures 2-4 As shown, in this embodiment, the head housing 41 has an assembly cavity 412. The end of the light-transmitting structure 22 away from the light-emitting element 212 passes through the assembly cavity 412 and extends to the end of the head housing 41 near the file 442. In this structure, the head housing 41 has an assembly cavity 412, and the end of the light-transmitting structure 22 away from the light-emitting element 212 passes through the assembly cavity 412 and extends to the end of the head housing 41 near the file 442. When the root canal preparation machine curved head is working, the external power supply is connected to the conductive post 23, the light-emitting element 212 emits light, and the light is conducted through the light-emitting structure to the assembly cavity 412 and extends to the end of the head housing 41 near the file 442, thereby illuminating the working area and facilitating the operation of the root canal preparation machine curved head.

[0063] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A sealing mechanism, characterized in that, include: A base having a receiving cavity; A cover plate with a protrusion is inserted into the receiving cavity to form a sealed space inside the receiving cavity, the sealed space being used to install a circuit board; The first sealing element has grooves on both sides of the protrusion, and the first sealing element is disposed in the grooves. The first sealing element is used to prevent external moisture from entering the sealed space.

2. The sealing mechanism according to claim 1, characterized in that, A second seal is provided between the end of the protrusion and the circuit board. The second seal is used to prevent external moisture from entering the sealed space.

3. The sealing mechanism according to claim 2, characterized in that, The first and second seals are one of the following: an O-ring, a gasket, or a potting layer.

4. A lighting structure, characterized in that, include: The sealing mechanism according to any one of claims 1-3; A light-emitting mechanism, comprising a circuit board and a light-emitting element, wherein the circuit board and the light-emitting element are both installed within the sealed space of the sealing mechanism, and the light-emitting element is electrically connected to the circuit board; A light-transmitting structure is provided on the cover plate, and the light-transmitting structure is arranged opposite to the light-emitting element.

5. The lighting structure according to claim 4, characterized in that, The light-emitting mechanism also includes a conductive post, which passes through the base and is electrically connected to the circuit board.

6. The lighting structure according to claim 4, characterized in that, The light-transmitting structure is an optical fiber, and the light-emitting element is an LED lamp. The optical fiber and the LED lamp are arranged opposite to each other, and the light emitted by the LED lamp can be transmitted to the outside of the sealing mechanism through the optical fiber.

7. A curved head for a root canal preparation machine, characterized in that, include: Gearbox; A head assembly, wherein the gearbox is assembled within the head assembly, and the head assembly has a cavity; as well as, The lighting structure according to any one of claims 4-6, wherein the lighting structure is installed within the cavity.

8. The root canal preparation machine bending head according to claim 7, characterized in that, The head assembly includes a head housing, a tail housing, a drive shaft, and a file assembly; the head housing and the tail housing are fixedly connected, and the gearbox is assembled inside the tail housing; the file assembly is rotatably connected to the end of the head housing away from the tail housing; one end of the drive shaft is drivenly connected to the gearbox, and the other end of the drive shaft is drivenly connected to the file assembly.

9. The root canal preparation machine bending head according to claim 8, characterized in that, The machine head housing has a transmission cavity, and the transmission shaft is rotatably connected to the transmission cavity. One end of the transmission shaft is provided with a first gear, and the other end of the transmission shaft is provided with a second gear. The output end of the gearbox is provided with a third gear, and the first gear meshes with the third gear. The file assembly includes a rotating head and a file. The rotating head is rotatably connected to the end of the machine head housing away from the tail housing. The file is mounted on the rotating head. A fourth gear is provided on the outside of the rotating head, and the fourth gear meshes with the second gear.

10. The root canal preparation machine bending head according to claim 8, characterized in that, An assembly cavity is provided inside the machine head housing. The end of the light-transmitting structure away from the light-emitting element passes through the assembly cavity and extends to the end of the machine head housing near the file needle.

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