Tooth extraction electric drill

Abstract

The tooth extraction electric drill comprises a machine body, a driving assembly, a sliding assembly, a transmission assembly, a stop block assembly, a driven assembly, a mounting assembly, a drill bit, a motor assembly and a locking assembly. The driving assembly is rotatably arranged in the machine body, the sliding assembly is slidably arranged in the machine body, and the driving assembly can drive the sliding of the sliding assembly. The transmission assembly is rotatably arranged in the machine body, and the sliding assembly can drive the rotation of the transmission assembly. The driven assembly is arranged on both sides of the transmission assembly, and the rotation of the transmission assembly can simultaneously drive the reverse sliding of the two driven assemblies. The stop block assembly is arranged in the machine body, the mounting assembly is telescopically arranged in the machine body and has elasticity, and the drill bit is rotatably arranged on the mounting assembly. When the driven assembly slides towards the mounting assembly, the mounting assembly slides towards the stop block assembly, so that the drill bit penetrates through the motor assembly and penetrates out of the drill hole. The motor assembly is arranged in the machine body and can drive the rotation of the drill bit. The locking assembly can limit the rotation of the driving assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the tooth extraction technical field, specifically relates to a tooth extraction electric drill. BACKGROUND

[0002] Tooth extraction is the most commonly used treatment technology in stomatology. Because tooth extraction can cause damage to local tissues, causing bleeding, swelling, pain and other reactions, it can also lead to fluctuations in blood pressure, body temperature and pulse, so it must be treated with caution. Patients with cardiovascular disease and blood disease should be particularly careful, otherwise serious consequences can occur. Tooth loss can cause alveolar bone atrophy, adjacent teeth and opposite teeth to shift or elongate, causing mastication disorders. The loss of anterior teeth directly affects pronunciation and appearance. Premature loss of baby teeth in children can cause dental and jaw development deformities. Therefore, the indications for tooth extraction must be strictly controlled. Only when the teeth have a negative impact on health and cannot be treated and preserved effectively should they be removed.

[0003] During tooth extraction, using an electric drill to drill holes in the teeth is a routine operation. Common drill bits include ball drills and threaded drills. Different drill bits are used to deal with different patient conditions. However, the existing electric drill is usually equipped with only one drill bit. When a different drill bit is needed, the drill bit needs to be removed and reinstalled. SUMMARY

[0004] To address the deficiencies in the prior art, the present application proposes a tooth extraction electric drill to solve the technical problem of the existing electric drill needing to be removed and reinstalled when a different drill bit is needed, as mentioned in the background.

[0005] To solve this technical problem, the technical solution adopted by the present application is:

[0006] A tooth extraction electric drill, comprising a body, a driving assembly, a sliding assembly, a transmission assembly, a stop block assembly, a driven assembly, an installation assembly, a drill bit, a motor assembly and a locking assembly;

[0007] The body is provided with a cavity inside, and a drill hole is provided at one end thereof;

[0008] The driving assembly is rotatably arranged in the body, and the sliding assembly is slidably arranged in the body. The rotation of the driving assembly can drive the sliding of the sliding assembly.

[0009] The transmission assembly is rotatably arranged in the body. The sliding of the sliding assembly can drive the rotation of the transmission assembly.

[0010] The driven assembly is provided with two groups and is arranged on both sides of the transmission assembly, respectively. The rotation of the transmission assembly can simultaneously drive the reverse sliding of the two driven assemblies.

[0011] The stopper assembly is arranged in the body, the mounting assembly and the driven assembly are one-to-one corresponding, the mounting assembly is arranged in the body in an extendable and elastic manner, and the drill bit is rotatably arranged on the mounting assembly; when the driven assembly slides to the mounting assembly, the mounting assembly is driven to slide to the stopper assembly, so that the drill bit passes through the motor assembly and penetrates out of the drill hole;

[0012] The motor assembly is arranged in the body and can drive the drill bit to rotate;

[0013] The locking assembly is slidably arranged on the body and can limit the rotation of the driving assembly.

[0014] Further, the driving assembly includes a driving link and a driving gear; the driving link is arranged in the body, the driving gear penetrates through the body and is rotatably connected to the driving link, and the driving gear can drive the sliding assembly to slide.

[0015] Further, the sliding assembly includes a first connecting plate and a bidirectional rack; the first connecting plate is arranged in the body, and the bidirectional rack is slidably arranged on the first connecting plate; the bidirectional rack is provided with ratchets on both sides, and the bidirectional rack is engaged with the driving gear and the transmission assembly, respectively.

[0016] Further, the transmission assembly includes a second connecting plate, a first connecting rod, a transmission gear and a driven gear; the second connecting plate is arranged in the body, the first connecting rod is rotatably connected to the second connecting plate, the transmission gear and the driven gear are coaxially fixed to the first connecting rod, respectively; the transmission gear is engaged with the bidirectional rack, and the driven gear is engaged with the two driven assemblies and can drive the two driven assemblies to slide in opposite directions.

[0017] Further, the driven assembly includes a third connecting plate, a driven rack and a first wedge; the third connecting plate is arranged in the body, the driven rack is slidably connected to the third connecting plate and engaged with the driven gear; the first wedge is arranged at an end of the driven rack close to the mounting assembly; when the driven rack slides to the mounting assembly, the first wedge can drive the mounting assembly to slide to the stopper assembly.

[0018] Further, the mounting assembly comprises a first spring, a telescopic rod, a sliding plate, a second wedge and a second spring; one end of the telescopic rod and the first spring is arranged in the body, and the other end is connected with the sliding plate; the sliding plate is provided with a groove, the first wedge can abut against the inner side surface of the groove of the sliding plate, and drive the sliding plate to slide towards the stopper assembly; the second wedge is slidably arranged at the end of the sliding plate close to the stopper assembly, and is connected with the sliding plate through the second spring; the second wedge can press the stopper assembly and slide towards the motor assembly; the drill bit is rotatably connected to the bottom surface of the second wedge.

[0019] Further, the stopper assembly comprises a second connecting rod and a stopper body; one end of the second connecting rod is arranged in the body, and the other end is connected with the stopper body; the second wedge can press the stopper body and slide towards the motor assembly.

[0020] Further, the motor assembly comprises a motor body, a bevel gear and a bevel gear ring; the motor body is arranged on the body, and the output end is provided with the bevel gear; the bevel gear ring is arranged on the body and coaxial with the drill hole; the bevel gear ring is provided with internal splines, and the drill bit is provided with external splines opposite to the internal splines; the drill bit can be connected with the bevel gear ring through the splines and pass through the drill hole.

[0021] Further, the locking assembly comprises a push rod; the driving gear is circumferentially provided with a plurality of limiting holes; the push rod is slidably arranged on the body and can be inserted into the limiting hole.

[0022] Compared with the prior art, the application has the following advantages:

[0023] At the beginning, a drill bit passes through the drill hole and normally works, the locking assembly releases the restriction on the driving assembly, the driven assembly corresponding to the drill bit slides away from the stopper assembly by rotating the driving assembly, so that the drill bit retracts into the body and away from the circumference of the drill hole; at the same time, the driven assembly corresponding to another drill bit slides towards the stopper assembly, so that the mounting assembly provided with the other drill bit slides towards the stopper assembly, thereby enabling the drill bit to work through the top assembly and the drill hole. That is, the switching between different drill bits can be realized by rotating the driving assembly, and the position of the drill bit can be fixed by the locking assembly. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the application, the drawings required in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0025] Figure 1 A schematic view of a tooth extraction electric drill is provided for an embodiment of the application;

[0026] Figure 2 Fig. 1 is a schematic view of a tooth extraction electric drill; Figure 1

[0027] Figure 3 Fig. 2 is a schematic view of a driving assembly;

[0028] Figure 4 Fig. 3 is a schematic view of a sliding assembly;

[0029] Figure 5 Fig. 4 is a schematic view of a transmission assembly;

[0030] Figure 6 Fig. 5 is a schematic view of a stopper assembly;

[0031] Figure 7 Fig. 6 is a schematic view of a driven assembly;

[0032] Figure 8 Fig. 7 is a schematic view of a mounting assembly;

[0033] Figure 9 Fig. 8 is a schematic view of a motor assembly.

[0034] Reference signs:

[0035] 1 - body; 11 - drilling hole;

[0036] 2 - driving assembly; 21 - driving link; 22 - driving gear; 221 - limiting hole.

[0037] 3 - sliding assembly; 31 - first connecting plate; 32 - bidirectional rack;

[0038] 4 - transmission assembly; 41 - second connecting plate; 42 - first connecting rod; 43 - transmission gear; 44 - driven gear;

[0039] 5 - stopper assembly; 51 - second connecting rod; 52 - stopper body;

[0040] 6 - driven assembly; 61 - third connecting plate; 62 - driven rack; 63 - first wedge;

[0041] 7 - mounting assembly; 71 - first spring; 72 - telescopic rod; 73 - sliding plate; 74 - second wedge; 75 - second spring;

[0042] 8 - drill bit;

[0043] 9 - motor assembly; 91 - motor body; 92 - bevel gear; 93 - bevel gear ring;

[0044] 10 - locking assembly; 101 - pushing rod. DETAILED DESCRIPTION ​

[0045] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0046] Please refer to Figures 1-9 The present embodiment provides a tooth extraction electric drill, which comprises a body 1, a driving assembly 2, a sliding assembly 3, a transmission assembly 4, a stop block assembly 5, a driven assembly 6, a mounting assembly 7, a drill bit 8, a motor assembly 9 and a locking assembly 10.

[0047] The body 1 is provided with a cavity, and a drill hole 11 is formed at one end of the body 1. It should be understood that the drill bit 8 works through the drill hole 11, and only one drill bit 8 can pass through the drill hole 11 at the same time.

[0048] The driving assembly 2 is rotatably arranged in the body 1, and the sliding assembly 3 is slidably arranged in the body 1. The rotation of the driving assembly 2 can drive the sliding of the sliding assembly 3.

[0049] In other solutions, the driving assembly 2 comprises a driving connecting rod 21 and a driving gear 22. The driving connecting rod 21 is arranged in the body 1, and the driving gear 22 passes through the body 1 and is rotatably connected to the driving connecting rod 21. The driving gear 22 can drive the sliding of the sliding assembly 3. It should be understood that part of the driving gear 22 is exposed outside the body 1, and the rest is located in the body 1.

[0050] In other solutions, the sliding assembly 3 comprises a first connecting plate 31 and a bidirectional rack 32. The first connecting plate 31 is arranged in the body 1, and the bidirectional rack 32 is slidably arranged on the first connecting plate 31. The bidirectional rack 32 is provided with ratchets on both sides, and the bidirectional rack 32 is engaged with the driving gear 22 and the transmission assembly 4, respectively. As a preferred, the two adjacent sides of the bidirectional rack 32 are provided with ratchets.

[0051] The transmission assembly 4 is rotatably arranged in the body 1, and the sliding of the sliding assembly 3 can drive the rotation of the transmission assembly 4.

[0052] In other solutions, the transmission assembly 4 comprises a second connecting plate 41, a first connecting rod 42, a transmission gear 43 and a driven gear 44. The second connecting plate 41 is arranged in the body 1, the first connecting rod 42 is rotatably connected to the second connecting plate 41, the transmission gear 43 and the driven gear 44 are coaxially fixed to the first connecting rod 42, respectively. The transmission gear 43 is engaged with the bidirectional rack 32, and the driven gear 44 is engaged with the two driven assemblies 6 at the same time, and can drive the two driven assemblies 6 to slide in opposite directions. It should be understood that the rotation of the transmission gear 43 can drive the rotation of the driven gear 44 through the first connecting rod 42.

[0053] The driven assembly 6 is provided with two groups and is respectively arranged at two sides of the transmission assembly 4, and the rotation of the transmission assembly 4 can simultaneously drive two driven assemblies 6 to slide reversely. It should be understood that the rotation of the transmission assembly 4 can drive one driven assembly 6 to slide towards the installation assembly 7, and the other driven assembly 6 to slide away from the installation assembly 7.

[0054] In other schemes, the driven assembly 6 comprises a third connecting plate 61, a driven rack 62 and a first wedge block 63; the third connecting plate 61 is arranged in the fuselage 1, the driven rack 62 is slidably connected to the third connecting plate 61 and is engaged with the driven gear 44; the first wedge block 63 is arranged at one end of the driven rack 62 close to the installation assembly 7; when the driven rack 62 slides towards the installation assembly 7, the first wedge block 63 can drive the installation assembly 7 to slide towards the stop block assembly 5.

[0055] The stop block assembly 5 is arranged in the fuselage 1, the installation assembly 7 and the driven assembly 6 are one-to-one corresponding, the installation assembly 7 is telescopically arranged in the fuselage 1 and has elasticity, and the drill bit 8 is rotatably arranged on the installation assembly 7; when the driven assembly 6 slides towards the installation assembly 7, the installation assembly 7 can be driven to slide towards the stop block assembly 5, so that the drill bit 8 passes through the motor assembly 9 and penetrates out of the drill hole 11.

[0056] In other schemes, the installation assembly 7 comprises a first spring 71, a telescopic rod 72, a sliding plate 73, a second wedge block 74 and a second spring 75; one end of the telescopic rod 72 and the first spring 71 is respectively arranged in the fuselage 1, and the other end is connected with the sliding plate 73; the sliding plate 73 is provided with a groove, the first wedge block 63 can abut against the inner side surface of the groove of the sliding plate 73 and drive the sliding plate 73 to slide towards the stop block assembly 5; the second wedge block 74 is slidably arranged at the end of the sliding plate 73 close to the stop block assembly 5 and is connected with the sliding plate 73 through the second spring 75, the second wedge block 74 can press the stop block assembly 5 and slide towards the motor assembly 9; the drill bit 8 is rotatably connected to the bottom surface of the second wedge block 74. It should be understood that after the first wedge block 63 slides towards the sliding plate 73, the first wedge block 63 can abut against and press the inner side surface of the groove of the sliding plate 73 and gradually drive the sliding plate 73 to move close to the stop block assembly 5, so that the second wedge block 74 abuts against and presses the stop block assembly 5, the second wedge block 74 is pressed by the stop block assembly 5 and slides towards the drill hole 11, and when the sliding plate 73 slides to the farthest position, the drill bit 8 is coaxial with the rotating hole. As a preferred, the axial direction of the second spring 75 is the same as the sliding direction of the second wedge block 74. In addition, the drill bit 8 arranged in different installation assemblies 7 is different.

[0057] In other schemes, the stop block assembly 5 comprises a second connecting rod 51 and a stop block body 52; one end of the second connecting rod 51 is arranged in the fuselage 1, and the other end is connected with the stop block body 52, the second wedge block 74 can press the stop block body 52 and slide towards the motor assembly 9. It should be understood that the distance from the two installation assemblies 7 to the stop block body 52 is the same.

[0058] The motor assembly 9 is arranged in the machine body 1 and can drive the drill bit 8 to rotate.

[0059] In other schemes, the motor assembly 9 comprises a motor body 91, a bevel gear 92 and a bevel gear ring 93; the motor body 91 is arranged on the machine body 1 and has the bevel gear 92 arranged at the output end; the bevel gear ring 93 is arranged on the machine body 1 and coaxial with the drill hole 11; the bevel gear ring 93 is provided with internal splines, and the drill bit 8 is provided with external splines opposite to the internal splines; the drill bit 8 can be connected with the bevel gear ring 93 through the splines and pass through the drill hole 11. As preferred, a gap is arranged between the external splines and the internal splines.

[0060] The locking assembly 10 is slidably arranged on the machine body 1 and can limit the rotation of the driving assembly 2.

[0061] In other schemes, the locking assembly 10 comprises a push rod 101; the driving gear 22 is circumferentially provided with a plurality of limiting holes 221, and the push rod 101 is slidably arranged on the machine body 1 and can be inserted into the limiting holes 221. When starting to rotate the driving gear 22, the push rod 101 should be pulled out, and after finishing rotating the driving gear 22, the push rod 101 should be inserted into the limiting holes 221.

[0062] The use process of the tooth extraction electric drill is as follows: at the beginning, the push rod 101 is inserted into the limiting hole 221, the first wedge block 63 of the second driven assembly 6 is inserted into the groove of the sliding plate 73 corresponding thereto, the second wedge block 74 is extruded by the block body 52 to slide to the lowermost position, the block body 52 limits the second wedge block 74 to reset under the action of the second spring 75, the above drill bit 8 is connected with the bevel gear ring 93 through the splines, and the other driven assembly 6 is away from the drill bit 8 and close to the end of the machine body 1; when replacing the drill bit 8, the push rod 101 is pulled out, the driving gear 22 is rotated, the first wedge block 63 originally abutting the groove of the sliding plate 73 gradually moves away from the sliding plate 73, the sliding plate 73 gradually moves away from the block body 52 under the driving of the first spring 71 after losing the limitation of the first wedge block 63, so that the second wedge block 74 resets under the action of the second spring 75; the second wedge block 74 away from the block body 52 gradually approaches the sliding block corresponding thereto and approaches the block body 52, and the second wedge block 74 gradually connects with the bevel gear ring 93 through the splines under the extrusion of the block body 52, and passes through the drill hole 11. It should be noted that the drill bit 8 is obliquely inserted into the bevel gear ring 93, only a small section of the internal splines close to the bottom surface of the bevel gear ring 93, and because a gap is left between the internal splines and the external splines, the external splines can be obliquely inserted into the internal splines, and finally the drill bit 8 passes out of the drill hole 11 and is coaxial with the bevel gear ring 93.

[0063] The toothed drill bit of the tooth extraction electric drill passes through the drill hole to work normally, the locking assembly releases the restriction of the driving assembly, the driving assembly is rotated to make the driven assembly corresponding to the drill bit slide away from the block assembly, so that the drill bit is retracted into the body and away from the circumference of the drill hole; at the same time, the driven assembly corresponding to the other drill bit slides to the block assembly, the mounting assembly provided with the other drill bit slides to the block assembly, so that the drill bit passes through the top assembly and the drill hole to work. That is, the switching between different drill bits can be realized by rotating the driving assembly, and the position of the drill bit is fixed by the locking assembly.

[0064] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. An electric tooth extraction drill, characterized by The body, the driving assembly, the sliding assembly, the transmission assembly, the block assembly, the driven assembly, the mounting assembly, the drill bit, the motor assembly and the locking assembly are included. The body is internally provided with a cavity, and is provided with a drill hole at one end. The driving assembly is rotatably arranged in the body, and the sliding assembly is slidably arranged in the body. The transmission assembly is rotatably arranged in the body, and the sliding of the sliding assembly can drive the rotation of the transmission assembly. The driven assembly is provided with two groups and is arranged on both sides of the transmission assembly. The block assembly is arranged in the body, and the mounting assembly and the driven assembly are one-to-one corresponding. The mounting assembly is telescopically arranged in the body and has elasticity, and the drill bit is rotatably arranged on the mounting assembly. When the driven assembly slides to the mounting assembly, it can drive the mounting assembly to slide to the block assembly, so that the drill bit passes through the motor assembly and out of the drill hole. The motor assembly is arranged in the body and can drive the rotation of the drill bit. The locking assembly is slidably arranged on the body and can limit the rotation of the driving assembly. The driven assembly includes a third connecting plate, a driven rack and a first wedge. The third connecting plate is arranged in the body, the driven rack is slidably connected to the third connecting plate and is engaged with the driven gear. The first wedge is arranged at one end of the driven rack close to the mounting assembly. When the driven rack slides to the mounting assembly, the first wedge can drive the mounting assembly to slide to the block assembly. The mounting assembly includes a first spring, an extension rod, a sliding plate, a second wedge and a second spring. The extension rod and the first spring are respectively arranged at one end in the body and the other end is connected with the sliding plate. The sliding plate is provided with a groove, and the first wedge can abut the inner side of the groove of the sliding plate and drive the sliding plate to slide to the block assembly. The second wedge is slidably arranged at one end of the sliding plate close to the block assembly and is connected with the sliding plate through the second spring. The drill bit is rotatably connected to the bottom surface of the second wedge. The motor assembly includes a motor body, a bevel gear and a bevel gear ring. The motor body is arranged on the body, and the output end is provided with the bevel gear. The bevel gear ring is arranged on the body and is coaxial with the drill hole. The bevel gear ring is provided with internal splines, and the drill bit is provided with external splines opposite to the internal splines. The drill bit can be connected with the bevel gear ring through the splines and passes through the drill hole. The locking assembly includes a push rod. The driving gear is circumferentially provided with a plurality of limiting holes, and the push rod is slidably arranged in the body and can be inserted into the limiting hole.

2. The tooth extraction electric drill according to claim 1, characterized in that, The driving assembly comprises a driving link and a driving gear; the driving link is arranged in the fuselage, the driving gear penetrates the fuselage and is rotationally connected to the driving link, and the driving gear can drive the sliding assembly to slide.

3. The tooth extraction drill according to claim 2, wherein The sliding assembly comprises a first connecting plate and a bidirectional rack; the first connecting plate is arranged in the fuselage, and the bidirectional rack is slidably arranged on the first connecting plate; the bidirectional rack is provided with ratchets on both sides, and the bidirectional rack is engaged with the driving gear and the transmission assembly respectively.

4. The tooth extraction drill according to claim 3, wherein The transmission assembly comprises a second connecting plate, a first connecting rod, a transmission gear and a driven gear; the second connecting plate is arranged in the fuselage, the first connecting rod is rotationally connected to the second connecting plate, and the transmission gear and the driven gear are coaxially fixed to the first connecting rod respectively; the transmission gear is engaged with the bidirectional rack, and the driven gear is engaged with two driven assemblies simultaneously and can drive the two driven assemblies to slide reversely.

5. The tooth extraction electric drill according to claim 1, wherein The stopper assembly comprises a second connecting rod and a stopper body; one end of the second connecting rod is arranged in the fuselage, the other end is connected with the stopper body, and the second wedge can extrude the stopper body and slide towards the motor assembly.

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