Double-frame cast embedded tooth traction device

Abstract

The invention relates to the technical field of dental restoration, and provides a double-frame cast embedded tooth traction device, which comprises two tooth sockets, a traction device and a traction device, and is characterized in that the tooth sockets are adhered to anchorage teeth; the two connecting frames are arranged on the two sides of the tooth sockets respectively, and the two ends of each connecting frame are fixedly connected with the two tooth sockets respectively. The direction adjusting assembly comprises a fixed disc, a rotating shaft, a rotating disc, a worm gear, a worm and a first adjusting handle, the fixed disc is fixedly connected with the connecting frame, the rotating shaft is arranged in the longitudinal direction and rotationally connected with the fixed disc, and the rotating disc is arranged below the fixed disc in the transverse direction and fixedly connected with the rotating shaft; a guide groove penetrating in the longitudinal direction and extending in the transverse direction is formed in the rotating disc, the worm gear is fixedly installed on the rotating shaft, the worm is meshed with the worm gear, the two ends of the worm are rotationally connected with the fixing disc, and the first adjusting handle is fixedly installed at the end of the worm; the first end of the traction wire is fixedly connected with the embedded tooth, and the tensioning assembly is arranged on the rotating disc and used for tensioning the traction wire.

Description

Technical Field

[0001] The invention relates to the technical field of tooth restoration, in particular to a double-frame casting impacted tooth traction device. Background Art

[0002] Impacted teeth refer to teeth that have not erupted yet in the jaw tissue after the eruption period. They are a common cause of malocclusion. If not treated in time, they will affect important adjacent anatomical structures or be forced to be extracted due to abnormal root development, affecting chewing function and aesthetic appearance. In severe cases, they can affect the patient's pronunciation, appearance and psychology.

[0003] At present, in clinical traction treatment of impacted teeth, surgical fenestration and orthodontic traction combined treatment are often used to assist eruption. The principle is to determine the possibility of impacted traction and the range of bone removal by taking CBCT and X-ray films of the impacted teeth, and then remove part of the alveolar bone through surgical fenestration to expose part of the crown of the impacted tooth and bond it with the finished chain lingual buckle or bracket, and at the same time cooperate with orthodontic treatment mainly based on fixed orthodontics to make the impacted tooth enter the corresponding tooth position and solve the malocclusion.

[0004] However, the existing traction treatment scheme for impacted teeth has the following disadvantages: 1. Directly using the adjacent teeth of the impacted teeth as anchor teeth, the anchor teeth are easily moved due to the reaction force for a long time, causing damage to the anchor teeth. 2. The traction direction of the impacted teeth is single, which cannot meet the requirement of adjusting the traction direction at any time during the eruption of the impacted teeth, and the traction effect is not ideal. Summary of the invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a double-frame casting impacted tooth traction device, which can adjust the traction direction and has little effect on the anchoring teeth.

[0006] In order to achieve the above object, the present invention is implemented by the following technical scheme: a double-frame casting impacted tooth traction device, used in conjunction with two anchor teeth, the two anchor teeth are respectively located on both sides of the impacted tooth, comprising:

[0007] Two dental caps, the two dental caps are respectively adapted to the two anchor teeth, and the dental caps are bonded to the anchor teeth;

[0008] Two connecting frames are respectively arranged on both sides of the braces, and two ends of the connecting frame are respectively fixedly connected to the two braces, and a traction space is formed between the two connecting frames and the two braces;

[0009] A direction adjustment component, the direction adjustment component includes a fixed disk, a rotating shaft, a rotating disk, a worm wheel, a worm and a first adjustment handle, the fixed disk is arranged in the traction space in the transverse direction and is fixedly connected to the connecting frame, the rotating shaft is arranged in the longitudinal direction and is rotatably connected to the fixed disk, the rotating disk is arranged in the transverse direction below the fixed disk and is fixedly connected to the rotating shaft, the rotating disk is provided with a guide groove that penetrates in the longitudinal direction and extends in the transverse direction, the worm wheel is fixedly installed on the rotating shaft, the worm is meshed with the worm wheel, and both ends are rotatably connected to the fixed disk, and the first adjustment handle is fixedly installed on the end of the worm;

[0010] A traction wire and a tensioning assembly, wherein the first end of the traction wire is fixedly connected to the impacted tooth, and the tensioning assembly is arranged on the rotating disk and is used for tensioning the traction wire.

[0011] Further, it also includes an angle adjustment component;

[0012] The angle adjustment assembly includes a slider, a guide rail, a lead screw and a second adjustment handle. The slider is arranged in the guide groove and is in sliding contact with the inner wall of the guide groove. A limiting hole is opened on the slider, and the limiting hole is used to allow the traction wire to pass through. The guide rail is fixedly mounted on the rotating disk and is slidably connected to the slider. The lead screw passes through the slider horizontally and is threadedly connected to the slider. Both ends of the lead screw are rotatably connected to the rotating disk. The second adjustment handle is fixedly mounted on the end of the lead screw.

[0013] Furthermore, the tensioning assembly includes a movable shaft, a reel, a ratchet, ratchet teeth, a torsion spring and a third adjusting handle. The movable shaft is arranged longitudinally and is rotatably connected to the rotating disk. The reel is fixedly mounted on the movable shaft and is fixedly connected to the second end of the traction wire. The ratchet is fixedly mounted on the rotating shaft. The ratchet teeth are meshed with the ratchet wheel and are rotatably connected to the rotating disk. The torsion spring makes the tooth tip of the ratchet teeth tend to approach the ratchet wheel. The third adjusting handle is fixedly mounted on the end of the rotating shaft.

[0014] Furthermore, the rotating disk has an annular scale line, and the fixed disk has a reference line.

[0015] Furthermore, it also includes two connecting components, which are respectively arranged on both sides of the fixing plate;

[0016] The connecting assembly includes a connecting plate, a positioning plate and a screw. The connecting plate is arranged horizontally and fixedly connected to the connecting frame. A positioning groove is opened on the connecting plate. The positioning plate is arranged in the positioning groove and fixedly connected to the fixing plate. The screw is arranged on the positioning plate. The threaded end of the screw passes through the positioning plate and is threadedly connected to the connecting plate.

[0017] Furthermore, the first adjustment handle, the second adjustment handle and the third adjustment handle are all located above the turntable.

[0018] Furthermore, it also includes a cover plate, on which an insert plate is fixedly mounted;

[0019] The connecting frame is provided with a slot adapted to the plug board, and the connecting frame is bonded to the cover plate.

[0020] Furthermore, the two dental braces and the two connecting frames are integrally cast.

[0021] Beneficial effects of the present invention: The present invention provides a double-frame casting impacted tooth traction device. On the one hand, when the first adjustment handle is rotated, the rotating disk will rotate under the transmission of the worm, worm wheel and rotating shaft, thereby changing the position of the traction wire and adjusting the traction direction. On the other hand, the two braces are respectively mounted on the two supporting teeth, and the two connecting frames also play a reinforcing role between the two braces, so that the force on the supporting teeth is more uniform and dispersed, so the impact on the supporting teeth is relatively small. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the middle A part;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating disk and the fixed disk at a first viewing angle;

[0026] Figure 5 is a schematic diagram of the three-dimensional structure of the rotating disk and the fixed disk at a second viewing angle;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating disk and the fixed disk from a third-person perspective;

[0028] Figure 7 It is a schematic diagram of the front view structure of the rotating disk and the fixed disk in the third viewing angle;

[0029] Figure 8It is a schematic diagram of the cross-sectional structure of the slider;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the cover plate.

[0031] Figure markings: 10-bracket, 11-connecting frame, 12-slot, 20-direction adjustment assembly, 21-fixed disk, 22-rotating shaft, 23-rotating disk, 24-worm gear, 25-worm, 26-first adjustment handle, 27-guide groove, 28-annular scale line, 29-reference line, 30-traction wire, 40-tensioning assembly, 41-movable shaft, 42-reel, 43-ratchet, 44-ratchet, 45-third adjustment handle, 50-angle adjustment assembly, 51-slider, 511-limiting hole, 52-guide rail, 53-screw, 54-second adjustment handle, 60-connecting assembly, 61-connecting plate, 62-positioning plate, 63-screw, 70-cover plate, 71-plug plate. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] In this application, unless otherwise clearly specified and limited, the terms "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "horizontal", "top", "bottom", "up", "down", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0036] like Figure 1-Figure 9As shown, the present invention provides a double-frame cast impacted tooth traction device, which is used in conjunction with two support teeth, and the two support teeth are respectively located on both sides of the impacted tooth, including a brace 10, a connecting frame 11, a direction adjustment component 20, a traction wire 30 and a tensioning component 40.

[0037] There are two dental braces 10, and the two dental braces 10 are respectively adapted to the two anchor teeth, and the dental braces 10 are bonded to the anchor teeth by medical glue.

[0038] There are two connecting frames 11, which are respectively arranged on both sides of the dental brace 10, and the two ends of the connecting frame 11 are respectively fixedly connected to the two dental braces 10 to form a double-frame structure. A traction space is formed between the two connecting frames 11 and the two dental braces 10.

[0039] The direction adjustment assembly 20 includes a fixed disk 21, a rotating shaft 22, a rotating disk 23, a worm wheel 24, a worm 25 and a first adjustment handle 26. The fixed disk 21 is arranged in the traction space in the horizontal direction and is fixedly connected to the connecting frame 11. The rotating shaft 22 passes through the fixed disk 21 in the longitudinal direction and is rotatably connected to the fixed disk 21. The rotating disk 23 is arranged below the fixed disk 21 in the horizontal direction and is fixedly connected to the rotating shaft 22. The rotating disk 23 is provided with a guide groove 27 that penetrates in the longitudinal direction and extends in the horizontal direction. The worm wheel 24 is fixedly mounted on the rotating shaft 22, and the worm wheel 24 is located above the fixed disk 21. The worm 25 is arranged in the horizontal direction and meshes with the worm wheel 24. Both ends of the worm 25 are rotatably connected to the fixed disk 21. The first adjustment handle 26 is fixedly mounted at the end of the worm 25. The first adjustment handle 26 is provided with a cross slot. The cross screwdriver cooperates with the cross slot to drive the first adjustment handle 26 to rotate.

[0040] The first end of the traction wire 30 is fixedly connected to the impacted tooth through an anchoring nail, and the second end of the traction wire 30 is fixedly connected to the tensioning assembly 40. The tensioning assembly 40 is arranged on the rotating disk 23 and is used to tighten the traction wire 30.

[0041] Working principle: When the doctor rotates the first adjustment handle 26 with a cross screwdriver, the worm 25 will drive the worm wheel 24 to rotate synchronously, and then drive the rotating shaft 22 and the rotating disk 23 to rotate. Since the tensioning component 40 is set on the rotating disk 23, the position of the traction wire 30 will change with the rotation of the rotating disk 23, so that the doctor can adjust the traction direction of the traction wire 30 on the impacted tooth. Therefore, the traction direction of the device can be flexibly adjusted according to the treatment needs. After the traction direction is adjusted, the doctor can tighten the traction wire 30 through the tensioning component 40 to perform traction treatment on the impacted tooth.

[0042] In the present application, on the one hand, the two braces 10 are respectively mounted on the two support teeth, so that the force on the support teeth is more uniform; on the other hand, the two connecting frames 11 also play a reinforcing role between the two braces 10 to resist the reaction force from the traction wire 30 on the braces 10 and the support teeth, so that the force on the support teeth is more dispersed, thereby reducing the impact on the support teeth and protecting the support teeth.

[0043] It is worth noting that the structural design of the worm wheel 24 and the worm 25 has a self-locking function. When the doctor stops rotating the first adjustment handle 26, the worm wheel 24 will be locked and cannot rotate anymore. At this time, the rotating shaft 22 and the rotating disk 23 can no longer rotate, and the traction direction of the traction wire 30 will naturally not change. This design makes full use of the self-locking function of the worm wheel 24 and the worm 25. When the doctor adjusts the traction direction of the traction wire 30 to a suitable position, he can loosen the first adjustment handle 26, and the traction direction will not change anymore, which is very convenient for the doctor to operate.

[0044] In one embodiment, an angle adjustment assembly 50 is further included. The angle adjustment assembly 50 includes a slider 51 , a guide rail 52 , a lead screw 53 and a second adjustment handle 54 .

[0045] The slider 51 is arranged in the guide groove 27 and is in sliding contact with the inner wall of the guide groove 27. The slider 51 is provided with a through-limiting opening 511, and the limiting opening 511 is used to allow the traction wire 30 to pass through. The guide rail 52 is fixedly installed on the rotating disk 23 in the transverse direction and is slidably connected with the slider 51. The lead screw 53 passes through the slider 51 in the transverse direction and is threadedly connected with the slider 51. Both ends of the lead screw 53 are rotatably connected with the rotating disk 23. The second adjustment handle 54 is fixedly installed at the end of the lead screw 53. The second adjustment handle 54 is also provided with a cross slot. The cross screwdriver cooperates with the cross slot to drive the second adjustment handle 54 to rotate.

[0046] When the doctor adjusts the traction direction of the traction wire 30 to a suitable position and then turns the second adjusting handle 54 with a cross screwdriver, the lead screw 53 will rotate synchronously, and under the action of the guide rail 52, the slider 51 will move in the guide groove 27. Since the traction wire 30 passes through the limiting opening 511 on the slider 51, the traction wire 30 will be pulled, so that the traction angle of the traction wire 30 will change. When the traction angle of the traction wire 30 reaches a suitable position, the doctor releases the second adjusting handle 54, and then tightens the traction wire 30 through the tensioning assembly 40.

[0047] The design of the angle adjustment component 50 can further adjust the traction angle of the traction wire 30. When used in conjunction with the direction adjustment component 20, the posture of the traction wire 30 can be adjusted within a larger three-dimensional space, thereby meeting more treatment needs.

[0048] It is worth mentioning that when the tensioning assembly 40 tightens the traction wire 30, the traction wire 30 will exert pressure on the slider 51, so that the slider 51 presses the screw 53, which can prevent the screw 53 from loosening, so that the traction angle of the traction wire 30 maintains the temperature and does not change.

[0049] In one embodiment, the tensioning assembly 40 includes a movable shaft 41, a reel 42, a ratchet 43, a ratchet 44, a torsion spring and a third adjustment handle 45. The movable shaft 41 passes through the rotating disk 23 in the longitudinal direction and is rotatably connected to the rotating disk 23. The reel 42 is fixedly mounted on the movable shaft 41 and is fixedly connected to the second end of the traction wire 30. The reel 42 is located above the rotating disk 23. The ratchet 43 is fixedly mounted on the rotating shaft 22 and is located below the rotating disk 23. The ratchet 44 is meshed with the ratchet 43 and is rotatably connected to the rotating disk 23 via a connecting shaft. The torsion spring is sleeved on the connecting shaft, the first end of the torsion spring is fixedly connected to the ratchet 44, the second end of the torsion spring is fixedly connected to the rotating disk 23, and the torsion spring makes the tooth tip of the ratchet 44 have a tendency to approach the ratchet 43. The third adjustment handle 45 is fixedly mounted on the end of the rotating shaft 22, and a cross slot is also provided on the third adjustment handle 45. A cross screwdriver cooperates with the cross slot to drive the third adjustment handle 45 to rotate.

[0050] When the tensioning assembly 40 is working, the doctor rotates the third adjusting handle 45 through a cross screwdriver, and the movable shaft 41 will drive the reel 42 to rotate synchronously, thereby winding the traction wire 30 until the traction wire 30 is tightened. At this time, the doctor can loosen the third adjusting handle 45.

[0051] It is worth mentioning that when the doctor rotates the third adjusting handle 45 with a cross screwdriver, the movable shaft 41 will also drive the ratchet 43 to rotate synchronously, and the ratchet 44 will slip on the ratchet 43. When the reel 42 tightens the traction wire 30, the doctor releases the third adjusting handle 45. At this time, the ratchet 44 will jam the ratchet 43 to prevent the ratchet 43 from reversing, thereby keeping the traction wire 30 always in a tightened state, which is very convenient for the doctor to operate.

[0052] After a period of treatment, the traction wire 30 pulls out a small part of the impacted tooth, and the traction wire 30 becomes loose, so the patient needs to be rechecked regularly. During the recheck, the doctor adjusts the traction direction and traction angle of the traction wire 30, and then continues to rotate the third adjustment handle 45 with a cross screwdriver, and the traction wire 30 is tightened again under the action of the ratchet 43 and the ratchet teeth 44.

[0053] In one embodiment, the rotating disk 23 has an annular scale line 28 , and the fixed disk 21 has a reference line 29 .

[0054] When the doctor adjusts the traction direction of the traction wire 30, the doctor can take the reference line 29 as a reference and observe the scale value on the annular scale line 28 that is aligned with the reference line 29 to know the specific traction direction of the traction wire 30, which further facilitates the doctor's operation.

[0055] In one embodiment, two connection components 60 are further included. The two connection components 60 are respectively disposed on two sides of the fixing plate 21 .

[0056] The connecting assembly 60 includes a connecting plate 61, a positioning plate 62 and a screw 63. The connecting plate 61 is arranged in a transverse direction and is fixedly connected to the connecting frame 11, and a positioning groove is provided on the connecting plate 61. The positioning plate 62 is arranged in the positioning groove and is fixedly connected to the fixing plate 21. The screw 63 is arranged on the positioning plate 62, and the threaded end of the screw 63 passes through the positioning plate 62 and is threadedly connected to the connecting plate 61.

[0057] The design of the connecting assembly 60 makes the installation and disassembly of the device more convenient.

[0058] In one embodiment, the first adjustment handle 26, the second adjustment handle 54 and the third adjustment handle 45 are all located above the turntable to facilitate the doctor to control the rotation thereof by using a cross screwdriver.

[0059] In one embodiment, a cover plate 70 is further included, and an inserting plate 71 is fixedly mounted on the cover plate 70 .

[0060] The connecting frame 11 is provided with a slot 12 adapted to the plug plate 71 , and the connecting frame 11 is bonded to the cover plate 70 .

[0061] When the traction wire 30 is tightened, the doctor covers the cover plate 70 on the two connecting frames 11 through the cooperation of the plug plate 71 and the slot 12, and then adheres the connecting frame 11 and the cover plate 70 with medical glue.

[0062] On the one hand, this design can prevent food residues from entering the traction space when the patient is eating, thereby preventing them from affecting the therapeutic effect of the device and the patient's eating comfort; on the other hand, it can also improve the safety of the device.

[0063] In one embodiment, the two braces 10 and the two connecting frames 11 are integrally cast to improve stability.

[0064] The specific use process of this device is:

[0065] In the first step, the doctor takes X-rays of the patient's teeth and holds a treatment meeting to clarify the traction direction and angle of the patient's impacted teeth.

[0066] In the second step, the doctor mixes tooth powder with water and then puts it into the user's mouth to make a dental mold of two anchor teeth, which is then sent to the manufacturer. The manufacturer uses hard metal materials to make two dental braces 10 and two connecting frames 11 according to the dental mold, and the two dental braces 10 and two connecting frames 11 are integrally cast.

[0067] In the third step, the doctor performs a surgical operation to open a window to expose the impacted tooth, and then puts two dental caps 10 on the two anchoring teeth respectively and bonds them together with medical glue.

[0068] In the fourth step, the doctor fixes the first end of the traction wire 30 to the impacted tooth through an anchoring pin (this step is a prior art and the specific process will not be repeated).

[0069] In the fifth step, the doctor holds the fixing plate 21 and adjusts the traction direction and traction angle of the traction wire 30 (the specific adjustment process has been described in the previous text and will not be repeated here).

[0070] In the sixth step, the positioning plate 62 is placed into the positioning groove, and the positioning plate 62 is fixedly connected to the connecting plate 61 by screws 63. Then the third adjusting handle 45 is rotated by a cross screwdriver, and the traction wire 30 is tightened.

[0071] In the seventh step, the cover plate 70 is covered on the two connecting frames 11, and then the connecting frames 11 and the cover plate 70 are bonded together by medical glue.

[0072] After the impacted tooth treatment is completed, the doctor can remove the device.

[0073] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0074] In addition, it should be understood that although the present 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 embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-frame cast impacted tooth traction device, used in conjunction with two anchor teeth, the two anchor teeth are respectively located on both sides of the impacted tooth, characterized in that: include: Two dental caps, the two dental caps are respectively adapted to the two anchor teeth, and the dental caps are bonded to the anchor teeth; Two connecting frames are respectively arranged on both sides of the braces, and two ends of the connecting frame are respectively fixedly connected to the two braces, and a traction space is formed between the two connecting frames and the two braces; A direction adjustment component, the direction adjustment component includes a fixed disk, a rotating shaft, a rotating disk, a worm wheel, a worm and a first adjustment handle, the fixed disk is arranged in the traction space in the transverse direction and is fixedly connected to the connecting frame, the rotating shaft is arranged in the longitudinal direction and is rotatably connected to the fixed disk, the rotating disk is arranged in the transverse direction below the fixed disk and is fixedly connected to the rotating shaft, the rotating disk is provided with a guide groove that penetrates in the longitudinal direction and extends in the transverse direction, the worm wheel is fixedly installed on the rotating shaft, the worm is meshed with the worm wheel, and both ends are rotatably connected to the fixed disk, and the first adjustment handle is fixedly installed on the end of the worm; A traction wire and a tensioning assembly, wherein the first end of the traction wire is fixedly connected to the impacted tooth, and the tensioning assembly is arranged on the rotating disk and is used for tensioning the traction wire.

2. A double-frame casting impacted tooth traction device according to claim 1, characterized in that: Also included is an angle adjustment assembly; The angle adjustment assembly includes a slider, a guide rail, a lead screw and a second adjustment handle. The slider is arranged in the guide groove and is in sliding contact with the inner wall of the guide groove. A limiting hole is opened on the slider, and the limiting hole is used to allow the traction wire to pass through. The guide rail is fixedly mounted on the rotating disk and is slidably connected to the slider. The lead screw passes through the slider horizontally and is threadedly connected to the slider. Both ends of the lead screw are rotatably connected to the rotating disk. The second adjustment handle is fixedly mounted on the end of the lead screw.

3. A double-frame casting impacted tooth traction device according to claim 2, characterized in that: The tensioning assembly includes a movable shaft, a reel, a ratchet, ratchet teeth, a torsion spring and a third adjusting handle. The movable shaft is arranged longitudinally and is rotatably connected to the rotating disk. The reel is fixedly mounted on the movable shaft and is fixedly connected to the second end of the traction wire. The ratchet is fixedly mounted on the rotating shaft. The ratchet teeth are meshed with the ratchet wheel and are rotatably connected to the rotating disk. The torsion spring makes the tooth tip of the ratchet teeth tend to approach the ratchet wheel. The third adjusting handle is fixedly mounted on the end of the rotating shaft.

4. A double-frame casting impacted tooth traction device according to claim 1, characterized in that: The rotating disk is provided with an annular scale line, and the fixed disk is provided with a reference line.

5. A double-frame casting impacted tooth traction device according to claim 1, characterized in that: It also includes two connecting components, which are respectively arranged on both sides of the fixing plate; The connecting assembly includes a connecting plate, a positioning plate and a screw. The connecting plate is arranged horizontally and fixedly connected to the connecting frame. A positioning groove is opened on the connecting plate. The positioning plate is arranged in the positioning groove and fixedly connected to the fixing plate. The screw is arranged on the positioning plate. The threaded end of the screw passes through the positioning plate and is threadedly connected to the connecting plate.

6. A double-frame casting impacted tooth traction device according to claim 3, characterized in that: The first adjustment handle, the second adjustment handle and the third adjustment handle are all located above the rotating disk.

7. A double-frame casting impacted tooth traction device according to claim 1, characterized in that: It also includes a cover plate, on which a plug plate is fixedly mounted; The connecting frame is provided with a slot adapted to the plug board, and the connecting frame is bonded to the cover plate.

8. The double-frame casting impacted tooth traction device according to claim 1, characterized in that: The two dental braces and the two connecting frames are integrally cast.

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