Oral tool transmission assembly and dental implant machine having the same

Abstract

The present invention provides an oral tool transmission assembly and a dental implant machine having the same. The transmission assembly includes a transmission chain, a protective cover and a tool locker. The transmission chain includes a tool connector, a motor coupling rod and a universal transmission mechanism. The outer wall of the tool connector is provided with a gripper matching portion. The tool connector and the motor coupling rod are connected through the universal transmission mechanism, and the protective cover is sleeved outside the universal transmission mechanism. The dental implant machine includes the transmission assembly, a tool matched with the tool connector and a handpiece head matched with the motor coupling rod. The motor output terminal of the handpiece head drives the motor coupling rod to rotate, and through the transmission of the universal transmission mechanism, the tool connector drives the tool to rotate synchronously in the same direction. The present invention facilitates the use of tools in oral surgeries with small oral cavities or patients with small mouth openings, ensuring the smoothness and success rate of the surgery.

Description

Technical Field

[0001] The invention belongs to the technical field of oral medical instruments, and relates to an oral tool transmission component and a dental implant machine having the oral tool transmission component. Background Art

[0002] In the field of oral medicine, tools such as drills and screwdrivers are widely used in surgery. For example, in the field of dental implants, these tools are usually assembled on the handpiece of the implant machine, and the handpiece and the tools are placed in the patient's mouth, and the dental implant or other surgery is performed under the drive of the implant machine's motor.

[0003] However, the space of the oral cavity varies from person to person. For patients with smaller cavities, such as children, and for patients with smaller mouth openings, it is difficult to place the handpiece head in the patient's mouth, or the handpiece head and tools are unlikely to be adjusted to the optimal angle, making the operation more difficult, time-consuming and labor-intensive, and prone to surgical deviation or even failure due to poor angles. Summary of the invention

[0004] In order to solve the technical problem of inconvenience in use when the existing oral tools are directly assembled on the head of the mobile phone, the purpose of the present invention is to provide an oral tool transmission assembly and a dental implant machine having the oral tool transmission assembly.

[0005] To achieve one of the above-mentioned purposes, one embodiment of the present invention provides an oral tool transmission assembly, including a transmission chain, a protective cover and a tool locker, wherein the transmission chain includes a tool connector at the front end, a motor coupling rod at the rear end, and a universal transmission mechanism, the rear end of the motor coupling rod is provided with a motor coupling portion, the front end of the tool connector is provided with the tool locker, and the outer wall of the tool connector is provided with a holder matching portion; the rear end of the tool connector and the front end of the motor coupling rod are connected through the universal transmission mechanism, and the protective cover is arranged outside the universal transmission mechanism; wherein, when the motor coupling rod rotates around its central axis, it drives the tool connector to rotate through the universal transmission mechanism.

[0006] As a further improvement of one embodiment of the present invention, the universal transmission mechanism includes at least one two-way universal joint, the front end of the at least one two-way universal joint and the rear end of the tool connecting part constitute a universal joint of the universal transmission mechanism, and the rear end of the at least one two-way universal joint and the front end of the motor coupling rod constitute another universal joint of the universal transmission mechanism.

[0007] As a further improvement of an embodiment of the present invention, the universal transmission mechanism includes at least one universal joint;

[0008] The protective sleeve comprises at least two sections of cylindrical sleeves and a spherical sleeve located between two adjacent sections of the cylindrical sleeves. The spherical sleeve covers the outside of the universal joint and surrounds a spherical cavity for the universal joint to move.

[0009] As a further improvement of an embodiment of the present invention, the two adjacent sections of the cylindrical sleeve are separately provided;

[0010] The spherical sleeve comprises an inner sleeve with an inner opening and an outer sleeve with an outer opening;

[0011] The inner sleeve is integrally connected to one of the two adjacent sections of the cylindrical sleeve, and the inner sleeve extends through the outer opening into the outer sleeve;

[0012] The outer sleeve is integrally connected to the other of the two adjacent sections of the cylindrical sleeve, and the outer sleeve tightly covers the outside of the inner sleeve and closes the inner opening.

[0013] As a further improvement of an embodiment of the present invention, the universal joint includes a cross shaft.

[0014] As a further improvement of an embodiment of the present invention, the holder matching portion is configured as a rotating bearing sleeved on the outer wall of the tool connecting member.

[0015] As a further improvement of one embodiment of the present invention, the front end portion of the tool connecting member is configured to be cylindrical, and includes an inner cavity with a front end opening and a fastening portion formed on an outer wall thereof;

[0016] The tool locker comprises an elastic sleeve and a fastener;

[0017] The elastic sleeve is inserted into the inner cavity from the front end opening and is in an elastic deformation state with an inner diameter contracted;

[0018] The fastener is matched with the fastening part and locks the elastic sleeve in the elastic deformation state. As a further improvement of one embodiment of the present invention, the outer wall of the elastic sleeve is provided with a driving surface extending outward from the back to the front away from the central axis of the tool connecting member;

[0019] The inner wall of the tool connecting piece is provided with a limiting surface extending outwardly from the back to the front away from the central axis of the tool connecting piece;

[0020] When the fastener is coupled to the fastening portion, the limiting surface tightly presses the driving surface, so that the elastic sleeve is in the elastic deformation state with its inner diameter retracted.

[0021] As a further improvement of an embodiment of the present invention, the fastening portion is configured as an external thread structure; the elastic sleeve includes a boss surface connected to the front end of the driving surface;

[0022] The fastener is configured as a nut with an inner boss, the nut is screwed and engaged with the outer thread structure from front to back along the central axis of the tool connector, and the inner boss abuts against the boss surface to lock the elastic sleeve in the elastic deformation state.

[0023] To achieve one of the above purposes, an embodiment of the present invention further provides a dental implant machine, comprising:

[0024] The transmission assembly;

[0025] A tool, which can be matched with the tool locker;

[0026] A mobile phone head, which is provided with a motor output terminal and can be matched with the motor coupling part;

[0027] In the transmission assembly mode of the dental implant machine, the motor output terminal drives the motor coupling rod to rotate, and the tool rotates synchronously with the tool connecting piece in the same direction;

[0028] In the direct drive assembly mode of the dental implant machine, the tool is connected to the handpiece head and driven by the motor output terminal.

[0029] Compared with the prior art, the beneficial effect of the present invention lies in that: by setting the transmission assembly, its front end can be equipped with oral tools, and its rear end can be equipped to the head of the mobile phone, and the driving force of the motor can be transmitted to the tool during use. During the operation, the tool and the front end of the transmission assembly can be inserted into the oral cavity through the holder. It has a wide range of application scenarios and can be suitable for oral surgery with a small oral cavity or a small mouth opening of the patient, which is convenient for the doctor to adjust the tool angle, thereby ensuring the smoothness and success rate of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of the assembly structure of the transmission component, the holder and the tool according to one embodiment of the present invention;

[0031] Figure 2 is a structural stereogram of a transmission assembly and a holder with the protective cover removed according to an embodiment of the present invention;

[0032] Figure 3 is a top view of a transmission assembly and a holder according to an embodiment of the present invention;

[0033] Figure 4 is along Figure 3 Sectional view along line AA;

[0034] Figure 5 yes Figure 4 A partial enlarged view of area B in FIG. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0036] Ginseng Figures 1 to 5 As shown, an embodiment of the present invention provides a transmission assembly 100, and further provides a dental implant machine comprising a handpiece head, a tool 300 and the transmission assembly 100. The tool 300 can be any tool suitable for oral medical treatment, such as a drill bit and a screwdriver, and is exemplified as a drill bit in the figure.

[0037] The transmission component 100 is generally elongated and has two opposite ends located in its elongated extension direction, one end of which can be matched with the tool 300, and the other end of which can be matched with the mobile phone head. In the present application, in the extension direction of the transmission component 100, the direction from the "other end thereof" to the "one end thereof" is defined as "front", and conversely, the direction from the "one end thereof" to the "other end thereof" is defined as "rear".

[0038] Specific reference Figure 1 The transmission assembly 100 includes a transmission chain, a protective cover 20 and a tool locker 30 .

[0039] Ginseng Figure 2 The transmission chain includes a tool connecting piece 13 at the front end, a motor coupling rod 11 at the rear end, and a universal transmission mechanism.

[0040] The rear end of the motor coupling rod 11 is provided with a motor coupling part 111. When the transmission assembly 100 is applied to the dental implant machine: the motor coupling part 111 can be assembled with the handpiece head, for example, the motor coupling part 111 is provided as a slender straight rod as shown in the figure, which can be inserted into the assembly hole of the handpiece head to achieve assembly; and the handpiece head is provided with a motor output terminal of the motor, such as a motor output shaft, and when the motor is started, the motor output terminal drives the motor coupling rod 11 to rotate around the central axis V1 of the motor coupling rod 11.

[0041] The tool locker 30 is provided at the front end of the tool connector 13. When the transmission assembly 100 is applied to the dental implant machine: the tool 300 can be matched with the tool locker 30, and the tool 300 can rotate synchronously with the tool connector 13 in the same direction. Preferably, the tool 300 and the tool connector 13 are arranged with a common center axis V2, and the two can rotate coaxially around the center axis V2. In the illustrated example, the connecting handle 301 of the tool 300 is assembled and connected to the tool locker 30, and the head 302 of the tool 300 extends out of the tool locker 30.

[0042] The rear end of the tool connector 13 and the front end of the motor coupling rod 11 are connected via the universal joint mechanism, which can realize multi-degree-of-freedom transmission. When the motor coupling rod 11 rotates around its center axis V1, it drives the tool connector 13 to rotate around the center axis V2 through the universal joint mechanism.

[0043] The outer wall of the tool connecting member 13 is provided with a holder matching portion 40. As the name implies, the holder matching portion 40 can be matched with the holder 200 to be moved into position or fixed in position under the grip of the holder 200. For example, a wrench is selected as the holder 200 in the example, and the head 202 of the holder 200 is matched with the holder matching portion 40. By holding the handle 201 of the holder 200, the tool connecting member 13 can be held.

[0044] Based on the above description, it can be known that the transmission assembly 100 provided by the present invention can be connected between the tool 300 and the handpiece head for use, and can transmit the driving force of the motor to the tool 300 during use. In oral surgery, the tool 300 and the front end of the transmission assembly 100 can be inserted into the oral cavity through the holder 200, without the need for the handpiece head to be inserted into the oral cavity, and even the position of the handpiece head can be freely placed without position restrictions. It has a wide range of application scenarios and can be used in oral surgeries with small oral cavities or patients with small mouth openings, which is convenient for doctors to adjust the tool angle, thereby ensuring the smoothness and success rate of the operation.

[0045] Furthermore, based on the configuration of the transmission assembly 100, the dental implant machine has two working modes: a transmission assembly mode and a direct drive assembly mode.

[0046] In the transmission assembly mode, as mentioned above, the motor coupling part 111 is connected to the mobile phone head assembly, the tool 300 is matched with the tool locker 30, and the motor output terminal drives the motor coupling rod 11 to rotate around the central axis V1. Under the transmission action of the universal transmission mechanism, the tool connecting part 13 drives the tool 300 to rotate around the central axis V2 to realize the driving of the tool 300, thereby the medical operation can be completed by utilizing the rotation of the tool 300.

[0047] In the direct-drive assembly mode, the tool 300 is directly assembled and connected to the mobile phone head, and the tool is directly driven by the motor output terminal without being transmitted by the transmission assembly 100. For example, the connecting handle 301 of the tool 300 is directly inserted into the assembly hole of the mobile phone head and rotates around the central axis of the tool 300 under the drive of the motor output terminal.

[0048] Therefore, based on the setting of the transmission assembly 100, two different assembly modes of the dental implant machine can be realized, making the dental implant machine more applicable.

[0049] Preferably, the motor coupling part 111 is substantially an equal-diameter slender cylindrical rod, which has a special-shaped part 1110, and the special-shaped part 1110 is configured to receive and transmit the rotation torque around the central axis V1 from the motor output terminal. Of course, this is only a preferred example, and the motor coupling part 111 can also realize the transmission of the motor torque in other structures.

[0050] Furthermore, the motor coupling portion 111 can be configured as a standard component having the same structure as the connecting handle 301 of the tool 300 , thereby enhancing the versatility of the transmission assembly 100 .

[0051] Furthermore, the universal transmission mechanism includes: Figure 2 At least one universal joint 12 indicated by the dotted circle can at least realize multi-degree-of-freedom transmission from the motor coupling rod 11 to the tool connecting member 13. In the illustrated embodiment, the universal transmission mechanism includes three universal joints 12 as shown by the dotted circle.

[0052] Preferably, the universal transmission mechanism includes at least one bidirectional universal joint 121 , and in this embodiment includes two connected bidirectional universal joints 121 , and a universal joint 12 is formed at both ends of each bidirectional universal joint 121 .

[0053] Among the two connected two-way universal joints 121, the front end of the relatively forward two-way universal joint 121 and the rear end of the tool connecting part 13 construct a front universal joint 12 of the universal transmission mechanism; among the two connected two-way universal joints 121, the rear end of the relatively backward two-way universal joint 121 and the front end of the motor coupling rod 11 construct a rear universal joint 12 of the universal transmission mechanism; and among the two connected two-way universal joints 121, the rear end of the relatively forward two-way universal joint 121 and the front end of the relatively backward two-way universal joint 121 construct a middle universal joint 12 of the universal transmission mechanism.

[0054] In addition, each of the universal joints 12 includes a cross shaft 122, that is, the tool connector 13 and the two-way universal joint 121 at its rear end are movably connected with multiple degrees of freedom via the cross shaft 122, one axis of the cross shaft 122 is rotationally connected to the tool connector 13, and the other axis of the cross shaft 122 is rotationally connected to the two-way universal joint 121; similarly, the two two-way universal joints 121, as well as the motor coupling rod 11 and the two-way universal joint 121 at its front end, are all movably connected with multiple degrees of freedom via the cross shaft 122.

[0055] Furthermore, the protective cover 20 is sleeved on the outside of the universal transmission mechanism and can be made of medical flexible material. By covering the protective cover 20 on the outside of the universal transmission mechanism, on the one hand, it can ensure that the universal transmission mechanism does not get stuck when realizing multi-degree-of-freedom transmission, and on the other hand, it can prevent the universal transmission mechanism from damaging the internal tissues of the oral cavity during the transmission process, thereby achieving a double protection effect.

[0056] Preferably, the protective sleeve 20 includes a plurality of sections of cylindrical sleeves and a spherical sleeve 22 located between two adjacent sections of the cylindrical sleeves.

[0057] The spherical sleeve 22 covers the outside of the universal joint 12 and surrounds a spherical cavity 220 for the universal joint 12 to move. It should be noted that the spherical sleeve 22 is generally spherical, but it is not limited to being a complete sphere. By covering the universal joint 12 with the spherical sleeve 22, the universal joint 12 can be guaranteed to move freely in the spherical cavity 220 to avoid being stuck, and the setting of the protective sleeve 20 can be prevented from hindering the movement of the universal joint 12.

[0058] In this embodiment, the number of the spherical sleeves 22 and the universal joints 12 is consistent, that is, the exterior of each universal joint 12 is covered by the spherical sleeve 22. Correspondingly, the number of the cylindrical sleeves is set to be one more than the number of the spherical sleeves 22, that is, the protective sleeve 20 includes 4 sections of cylindrical sleeves, which are cylindrical sleeves 21a, 21b, 21c and 21d from the back to the front. Of course, in a variant embodiment, when only one universal joint 12 is provided, the number of the spherical sleeves 22 can be one, and the number of the cylindrical sleeves can be two.

[0059] Furthermore, two adjacent sections of the cylindrical sleeve are separately provided. In this embodiment, the four sections of the cylindrical sleeve 21a, 21b, 21c and 21d are independently provided, and are separate from each other rather than being an integrally formed structure.

[0060] The spherical sleeve 22 includes an inner sleeve with an inner opening and an outer sleeve with an outer opening; the inner sleeve is integrally connected to one of the two adjacent sections of the cylindrical sleeve, and the inner sleeve extends into the outer sleeve through the outer opening; the outer sleeve is integrally connected to the other of the two adjacent sections of the cylindrical sleeve, and the outer sleeve tightly covers the outside of the inner sleeve and closes the inner opening. The three spherical sleeves 22 are described below.

[0061] The spherical sleeve 22 located between the cylindrical sleeve 21a and the cylindrical sleeve 21b includes an inner sleeve 22a and an outer sleeve 22b. The inner sleeve 22a is integrally connected to the cylindrical sleeve 21a (i.e., integrally formed) and has an inner opening that opens forward, while the outer sleeve 22b is integrally connected to the cylindrical sleeve 21b and has an outer opening that opens backward. The inner sleeve 22a extends into the outer sleeve 22b through the outer opening of the outer sleeve 22b, and the outer sleeve 22b tightly covers the outside of the inner sleeve 22a, and the outer sleeve 22b closes the inner opening of the inner sleeve 22a. In this way, when the universal joint 12 is in motion, the outer sleeve 22b and the inner sleeve 22a can rotate relative to each other around the ball center to ensure that the universal joint 12 has sufficient space for movement. At the same time, it can also prevent the outer sleeve 22b and the inner sleeve 22a from being too loose and disengaged from each other to ensure that the protective effect is always maintained.

[0062] Similarly, the spherical sleeve 22 located between the cylindrical sleeve 21b and the cylindrical sleeve 21c also has an inner sleeve 22b and an outer sleeve 22c; and the spherical sleeve 22 located between the cylindrical sleeve 21c and the cylindrical sleeve 21d also has an inner sleeve 22c and an outer sleeve 22d. The structural relationship between these inner sleeves and the corresponding outer sleeves is similar to the structural relationship between the inner sleeve 22a and the outer sleeve 22b, and will not be repeated.

[0063] Preferably, the protective cover 20 extends continuously and uninterruptedly from the vicinity of the rear end portion of the motor coupling portion 111 to the vicinity of the holder matching portion 40, thereby ensuring a sufficient protective effect.

[0064] Furthermore, the holder coupling portion 40 is configured as a rotating bearing sleeved on the outer wall of the tool connector 13, which is located at the rear end of the tool locker 30. By being configured as a bearing, when the head 202 of the holder 200 is coupled to the outside of the bearing, the tool connector 13 can maintain a stable position under the action of the holder 200, so as to be positioned at the surgical target position without moving. At the same time, through the bearing, the tool connector 13 can rotate around the central axis V2 relative to the holder 200, so that the holder 200 does not interfere with the rotation of the tool connector 13.

[0065] Further, Figures 3 to 5 The front end of the tool connecting member 13 is configured to be cylindrical, and includes an inner cavity 130 with a front end opening and a fastening portion 131 formed on the outer wall thereof.

[0066] Correspondingly, the tool locker 30 includes an elastic sleeve 32 and a fastener 31 .

[0067] The fastener 31 is matched with the fastening portion 131. Specifically, preferably, the fastening portion 131 is configured as an external thread structure, and the fastener 31 is configured as a nut, and the nut is screwed and matched with the external thread structure from front to back along the central axis V2. Figure 5 As shown in the figure, when the nut is screwed and matched with the external thread structure, it moves axially from bottom to top along the central axis V2. Of course, in a variant embodiment, the fastener 31 and the fastening portion 131 can also be matched by other fastening methods besides threaded connection.

[0068] The tool connecting member 13 has a limiting surface 132 , which is generally an inclined surface extending outward from the back to the front away from the central axis V2 ; the nut has an inner boss 312 .

[0069] Correspondingly, the outer wall of the elastic sleeve 32 is provided with a driving surface 321 and a boss surface 322. The driving surface 321 is generally an inclined surface extending outward from the back to the front away from the central axis V2, and the boss surface 322 is connected to the front end of the driving surface 321. The driving surface 321 and the boss surface 322 generally surround a conical convex ring surrounding the central axis V2.

[0070] During the assembly process, the upper end of the elastic sleeve 32 is inserted into the inner cavity 130 from the front end opening of the inner cavity 130, and the nut is screwed together with the external thread structure. During the screwing and fitting process, the nut moves axially from front to rear along the center axis V2, and its inner boss 312 abuts against the boss surface 322 to push the elastic sleeve 32 to move axially from front to rear. Subsequently, under the tight squeezing action of the limiting surface 132 on the driving surface 321, the elastic sleeve 32 changes from a free form to an elastic deformation state with an inner diameter retracted (that is, the inner diameter is reduced). At the same time, the nut can press the elastic sleeve 32 onto the tool connector 13 to lock the elastic sleeve 32 in the elastic deformation state.

[0071] Therefore, when the transmission assembly 300 is in use, the connecting handle 301 of the tool 300 can be inserted into the elastic sleeve 32. By tightening the nut, the inner wall of the elastic sleeve 32 can tightly clamp the connecting handle 301 of the tool 300 through the deformation of the elastic sleeve 32 itself, thereby firmly fixing the matching tool 300.

[0072] To sum up, compared with the prior art, the transmission assembly 100 and the dental implant machine of this embodiment have the following beneficial effects: the transmission assembly 100 can be connected between the tool 300 and the handpiece head for use, and can transmit the driving force of the motor to the tool 300 during use. In oral surgery, the tool 300 and the front end of the transmission assembly 100 can be inserted into the oral cavity through the holder 200, without the need for the handpiece head to be inserted into the oral cavity, and even the position of the handpiece head can be freely placed without any position limitation. It has a wide range of application scenarios and can be used in oral surgery with a small oral cavity or a small mouth opening of the patient, which is convenient for the doctor to adjust the tool angle, thereby ensuring the smoothness and success rate of the operation.

[0073] In addition, the transmission assembly 100 is not only applicable to the dental implant machine provided by the present invention, but can also be used in other oral medical instruments that require tools for intraoral diagnosis and treatment. It can also solve the problem of inconvenience in using tools of these instruments due to small oral cavities or small mouth opening of patients.

[0074] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0075] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An oral tool transmission assembly, characterized in that: The utility model comprises a transmission chain, a protective cover and a tool locker, wherein the transmission chain comprises a tool connecting piece at the front end, a motor coupling rod at the rear end, and a universal transmission mechanism, the rear end of the motor coupling rod is provided with a motor coupling part, the front end of the tool connecting piece is provided with the tool locker, and the outer wall of the tool connecting piece is provided with a gripper matching part, and the gripper matching part is used to match the gripper; The holder matching part is configured as a rotation bearing, the bearing is sleeved on the outer wall of the tool connecting piece, the holder has a handle and a head, the head is matched outside the bearing, the handle is connected to the head and does not interfere with the rotation of the tool connecting piece; The rear end of the tool connecting member and the front end of the motor coupling rod are connected through the universal transmission mechanism, and the protective sleeve is sleeved outside the universal transmission mechanism; Wherein, when the motor coupling rod rotates around its central axis, it drives the tool connecting member to rotate through the universal transmission mechanism; The universal transmission mechanism comprises at least one universal joint; The protective cover comprises a spherical cover, the spherical cover covers the outside of the universal joint and surrounds a spherical cavity for the universal joint to move, the spherical cover comprises an inner cover with an inner opening and an outer cover with an outer opening; The inner sleeve and the outer sleeve are separately arranged, the inner sleeve extends into the outer sleeve through the outer opening, the outer sleeve tightly covers the outside of the inner sleeve and closes the inner opening, and the inner sleeve and the outer sleeve can rotate relatively around the center of the ball.

2. The oral tool transmission assembly according to claim 1, characterized in that: The universal joint mechanism includes at least one two-way universal joint, the front end of the at least one two-way universal joint and the rear end of the tool connecting part form a universal joint of the universal joint mechanism, and the rear end of the at least one two-way universal joint and the front end of the motor coupling rod form another universal joint of the universal joint mechanism.

3. The oral tool transmission assembly according to claim 1 or 2, characterized in that: The protective sleeve comprises at least two sections of cylindrical sleeves, and the spherical sleeve is located between two adjacent sections of the cylindrical sleeves.

4. The oral tool transmission assembly according to claim 3, characterized in that: The cylindrical sleeves of two adjacent sections are separately arranged; The inner sleeve is integrally connected to one of the two adjacent sections of the cylindrical sleeve, and the outer sleeve is integrally connected to the other of the two adjacent sections of the cylindrical sleeve.

5. The oral tool transmission assembly according to claim 1 or 2, characterized in that: The universal joint includes a cross shaft.

6. The oral tool transmission assembly according to claim 1, characterized in that: The bearing is located at the rear end of the tool lock.

7. The oral tool transmission assembly according to claim 1, characterized in that: The front end of the tool connecting member is arranged in a cylindrical shape, and comprises an inner cavity with a front end opening and a fastening portion formed on an outer wall thereof; The tool locker comprises an elastic sleeve and a fastener; The elastic sleeve is inserted into the inner cavity from the front end opening and is in an elastic deformation state with an inner diameter contracted; The fastener is matched with the fastening portion and locks the elastic sleeve in the elastic deformation state.

8. The oral tool transmission assembly according to claim 7, characterized in that: The outer wall of the elastic sleeve is provided with a driving surface extending outwardly from the rear to the front away from the central axis of the tool connecting member; The inner wall of the tool connecting piece is provided with a limiting surface extending outwardly from the back to the front away from the central axis of the tool connecting piece; When the fastener is coupled to the fastening portion, the limiting surface tightly presses the driving surface, so that the elastic sleeve is in the elastic deformation state with its inner diameter retracted.

9. The oral tool transmission assembly according to claim 8, characterized in that: The fastening portion is configured as an external thread structure; the elastic sleeve comprises a boss surface connected to the front end of the driving surface; The fastener is configured as a nut with an inner boss, the nut is screwed and engaged with the outer thread structure from front to back along the central axis of the tool connector, and the inner boss abuts against the boss surface to lock the elastic sleeve in the elastic deformation state.

10. A dental implant machine, characterized in that: include: The oral tool transmission assembly according to claim 1; A tool, which can be matched with the tool locker; A mobile phone head, which is provided with a motor output terminal and can be matched with the motor coupling part; In the transmission assembly mode of the dental implant machine, the motor output terminal drives the motor coupling rod to rotate, and the tool rotates synchronously with the tool connecting piece in the same direction; In the direct drive assembly mode of the dental implant machine, the tool is connected to the handpiece head and driven by the motor output terminal.

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