CN118476893A - Tooth brushing robot - Google Patents

Abstract

The invention belongs to the field of tooth brushing robots. The reason why the electric toothbrush is not accepted by the people is that the brushing efficiency is comparable to that of the manual toothbrush, and the rest teeth wait again when brushing N teeth, so that the brushing efficiency is low. Touching the button of the present invention reduces the bristle head assembly (hereinafter, bristle head) to a minimum volume. The reduced bristle head is put into the oral cavity, the button is touched again until the bristle head rises to a proper volume, three surfaces of the teeth are surrounded by the bristles, and the lower end of the tooth shell tongue pressing body is tightly attached to the tongue. Touching the button again, namely vibrating the two side edges, brushing the teeth while rotating from gum to teeth, and rotating the teeth at the two sides, namely brushing the upper teeth from top to bottom and brushing the lower teeth from bottom to top; the bristles of the left brush and the right brush do reciprocating motion on the occlusal surfaces of teeth, the occlusal surfaces of the teeth are brushed, the correct tooth brushing principle is met, and the effect of brushing teeth for 10 seconds can be achieved in 3 minutes.

Description

Tooth brushing robot

Technical field:

the invention relates to a tooth brushing robot, and belongs to the field of medical instrument industry.

The background technology is as follows:

the reason why the electric toothbrush is not acceptable to the public is that it has little difference in brushing efficiency compared with the manual toothbrush. The two toothbrushes have the common point that according to different sizes of the brush heads, only 1 to a plurality of tooth surfaces can be brushed in one brushing action (namely, the bristles of the small brush head brush 1 tooth at one time, and the bristles of the largest brush head brush a plurality of tooth surfaces at most at one time). When the brush head brushes 1 to one tooth or a plurality of teeth, the rest teeth wait, and the tooth brushing efficiency is low.

The invention comprises the following steps:

The invention solves the problem of low brushing efficiency of the electric toothbrush, and only needs to touch the intelligent switch to start the driving device for shrinking and expanding the volume of the bristle head, so that the bristle head assembly reaches the minimum volume. The bristle head assembly of the minimum volume is placed into the mouth. The intelligent switch is touched again, and the driving device for driving the volume of the bristle head to expand in the oral cavity until the bristle on the two sides of the tooth brushing teeth and the bristle on the jaw surface of the tooth brushing teeth are started to surround the three surfaces of the tooth. The intelligent switch is touched again, the shaft which rotates and vibrates at the same time and the brush bristle driving device which moves in a reciprocating mode are started, so that the three faces of the teeth are brushed all at once (each tooth is brushed all at one time, and the tooth brushing efficiency is improved). In particular to brush hair which rotates at two sides and vibrates at the same time, is in an archimedes spiral shape and is arranged in uneven length, and always has one brush hair which is vertical to tooth surfaces, so that tooth surfaces can be effectively brushed. The brush hair vibrates and rotates along the direction from the gum to the teeth, so that the gum is massaged, and dirt at the joint of the gum and the teeth is cleaned completely. When brushing teeth, the brush hair brushes from top to bottom; when brushing teeth, the brush hair brushes from bottom to top. The bristles of the left brush and the right brush do reciprocating motion on the occlusal surfaces of teeth, the occlusal surfaces of teeth are brushed, and the brushing actions of the bristles are matched with the correct brushing principle. Few people brush teeth correctly for 3 minutes, and the action of brushing the teeth by the brush hairs is consistent with the correct tooth brushing principle. Few people brush teeth correctly for 3 minutes, and the invention brushes teeth for 10 seconds, so that the effect of brushing teeth correctly for 3 minutes can be achieved.

Description of the drawings:

Fig. 1 is a front view of the bristle head assembly of the present invention in an operative condition with a maximum volume.

Fig. 2 is a view of the handle assembly and bristle head assembly of fig. 1.

Fig. 2-1 is a front view of a bristle head assembly.

Fig. 2-2 is a left side view of the bristle head assembly.

Fig. 2-3 are front views of the handle assembly.

Fig. 2-4 are left side views of the handle assembly.

Fig. 3 is a front view of a bristle head assembly according to the present invention in a minimum volume.

Fig. 4 is a four-view of fig. 1.

Fig. 4-1 is a front view of fig. 1.

Fig. 4-2 is a left side view of fig. 1.

Fig. 4-3 are right side views of fig. 1.

Fig. 4-4 are top views of fig. 1.

Fig. 5 is 4 cross-sectional views of fig. 1 according to the present invention.

FIG. 5-1 is a cross-sectional view of FIG. 1, A-A, of the present invention.

Fig. 5-2 is a cross-sectional view of the invention taken along line B-B of fig. 1.

Fig. 5-3 are cross-sectional views of the invention taken along line C-C of fig. 1.

Fig. 5-4 are sectional views of the D-D of fig. 1 of the present invention.

Fig. 6 is 4 cross-sectional views of fig. 1 according to the present invention.

Fig. 6-1 is a cross-sectional view of the invention from fig. 1, E-E.

Fig. 6-2 is a cross-sectional view of the F-F of fig. 1 of the present invention.

Fig. 6-3 are sectional views of the G-G of fig. 1 of the present invention.

Fig. 6-4 are H-H cross-sectional views of fig. 1 in accordance with the present invention.

Fig. 7 is 6 cross-sectional views of fig. 1 according to the present invention.

FIG. 7-1 is a cross-sectional view I-I of FIG. 1 of the present invention.

Fig. 7-2 is a sectional view of the J-J of fig. 1 of the present invention.

Fig. 7-3 are cross-sectional views of the K-K of fig. 1 in accordance with the present invention.

Fig. 7-4 are L-L cross-sectional views of fig. 1 in accordance with the present invention.

Fig. 7-5 are cross-sectional views of the M-M of fig. 1 of the present invention.

Fig. 7-6 are N-N cross-sectional views of fig. 1 in accordance with the present invention.

Fig. 8 is a view of the bristles of fig. 5-4 surrounding three sides of a tooth in accordance with the present invention.

FIG. 9 is a cross-sectional view of FIG. 4-2O-O according to the present invention.

FIG. 10 is a cross-sectional view of FIG. 4-2P-P of the present invention.

FIG. 11 is a cross-sectional view of FIG. 4-2Q-Q of the present invention.

FIG. 12 is a cross-sectional view of FIG. 1R-R in accordance with the present invention.

Fig. 13 is a four-view of a bristle sub-assembly according to the present invention.

Fig. 13-1 is a front view of fig. 13.

Fig. 13-2 is a left side view of fig. 13.

Fig. 13-3 is a top view of fig. 13.

Fig. 13-4 are bottom views of fig. 13.

Fig. 14 is a view of the support hood of the present invention.

Fig. 14-1 is a front view of fig. 14.

Fig. 14-2 is a left side view of fig. 14.

Fig. 14-3 is a top view of fig. 14.

Fig. 14-4 are bottom views of fig. 14.

Fig. 15 is a view of a 5-well cartridge of the present invention.

Fig. 15-1 is a front view of fig. 15.

Fig. 15-2 is a top view of fig. 15.

Fig. 16 is a view of a left and right occlusal brush for brushing teeth according to the present invention.

Fig. 16-1 is a front view of the left occlusal brush of fig. 16 brushing teeth.

Fig. 16-2 is a left side view of the left occlusal brush of fig. 16 brushing teeth.

Fig. 16-3 is a top view of the left occlusal brush of fig. 16 brushing teeth.

Fig. 16-4 are bottom views of the left occlusal brush of fig. 16 brushing teeth.

Fig. 16-5 are front views of the right occlusal brush of fig. 16 brushing teeth.

Fig. 16-6 are right side views of the right occlusal brush of fig. 16 brushing teeth.

Fig. 16-7 are top views of the right occlusal brush of fig. 16 brushing teeth.

Fig. 16-8 are bottom views of the right occlusal brush of fig. 16 brush teeth.

In the figure: 1. handle assembly 2, shaft 3, left post 4, right post 5, upper post 6, clip 7, lower post 8, clip 9, button 10, flexible shaft 11, bristle 12, bristle 13, bearing 14, flexible shaft 15, bristle 16, bristle 17, bearing 18, flexible shaft 19, bristle 21, bearing 22, bearing 23, bearing 24, bristle 26, bristle 27, bearing 28, bearing 29, bearing 30, support housing 31, elastomer 32, tooth case pressure tongue 33, gear 34, upper worm, gear 35, lower worm, gear 36, intermediate gear 37, upper worm gear, gear 38, lower worm gear, gear 39, gear 40, gear 41, gear 42, gear 43, left brush 44, right brush 45, bristle 46, bristle 47, anti-backup sleeve 48.5 hole post 49, bristle head assembly 50, bristle assembly 51, teeth 52, gums.

Specific embodiments of the invention: the handle of the patent is internally provided with a shaft which rotates at the side and vibrates at the side, and two cylinders which do reciprocating motion and two cylinders which do telescopic motion are abbreviated as: the handle assembly (1) and the assembly for driving the brush hair to rub the tooth end head are abbreviated as: a bristle head assembly (49). The two are spliced to form the tooth brushing robot.

1. The shape of the handle assembly (1) of the alternative patent is shown in figure 2.

At the center of the radial end face of the handle assembly (1), a main driving shaft (2) which rotates and vibrates is output. And the left column body (3) and the right column body (4) which are symmetrical to the left and right sides of the shaft (2) and output respectively are a left column body (3) and a right column body (4) which do reciprocating push-pull motion. One column body which is symmetrical to the upper side and the lower side of the shaft (2) and outputs respectively, namely an upper column body (5) and a lower column body (7) which do telescopic movement; the ends of the upper column body (5) and the lower column body (7) are respectively connected with an elastic clamping piece (6) with a concave notch and an elastic clamping piece (8) with a concave notch.

2. The bristle head assembly (49) is composed of a bristle assembly, a supporting cover, 5 holes, and two elastic brushes 4 in sequence.

Part 1: bristle sub-assemblies (50) are shown in fig. 9, 10, 11, 12, and 13.

The upper end of the bristle head assembly (49) is integrally formed with a gear box body and a tongue-pressing sheet plate (namely, a gear box tongue-pressing body (32) is simply referred to as a gear box) at the lower end of the gear box body, wherein the sheet plate is connected in a straight shape or an arc shape as shown in fig. 5-4, 6-1, 6-2, 8, 9, 10, 11, 12 and 13.

The assembly (50) which drives the brush burrs to do rotary motion and the brush edges to do tremble motion by a gear, a worm wheel, a worm and a rotary flexible shaft in the gear box tongue pressing body (32) is hereinafter referred to as: a bristle sub-assembly (50).

In order to flexibly insert a driving gear in a gear box tongue-pressing body (32) into a main driving shaft (2) of a handle assembly (1), the driving gear and the main driving shaft are firmly connected when in close fit (the friction contact area of the driving gear and the main driving shaft is increased), and a hollow sleeve is connected to the lower end of the driving gear to form a hollow sleeve gear, which is hereinafter referred to as: the gear (33) is shown in fig. 9.

The gear box tongue-pressing body (32) is internally provided with a worm and a gear, and the worm and the gear are concentrically connected into an integral upper worm and gear (34) and a lower worm and gear (35). The worm wheel and the gear are concentrically connected into an integral upper worm wheel and gear (37), and a lower worm wheel and gear (38). On both sides of the worm wheel, there is a concentric gear (gear, worm wheel, gear are sequentially connected, that is, the gear, worm wheel, gear are sequentially connected into a whole) as shown in fig. 5-4, fig. 6-1, fig. 6-2, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13.

The hole in the center of the end face of the tooth box tongue pressing body (32) is a hole of a driving hollow sleeve gear (33), the hole is movably spliced with the shaft (2) in a tight fit way, one side of the gear (33) is meshed with the gears of the upper worm and the gear (34), and the other side is meshed with the gears of the lower worm and the gear (35) through a medium gear (36) (in order to brush the brush hair along the direction from gum to tooth, the rotation direction of the brush hair is changed through the medium gear). The worm parts of the upper worm, the gear (34), the lower worm and the gear (35) are respectively meshed with the worm wheel parts of the upper worm wheel and the gear (37) and the lower worm wheel and the gear (38). The upper worm wheel and the gears (37) are respectively connected with one gear at two sides of the worm wheel, and each gear is respectively meshed with the gear (40) of the gear (39). The lower worm wheel and the gears (38) are respectively connected with one gear at two sides of the worm wheel, and each gear is respectively meshed with the gear (44) of the gear (41) (the transmission of the worm wheel and the worm is 90-degree turning transmission, or the bevel gear or other gears, the flexible shaft and the like can be used for 90-degree turning transmission) as shown in figures 5-1, 5-2, 9, 10, 11 and 12.

The flexible shaft (hereinafter referred to as flexible shaft) of the brush assembly (50) is made of thin steel wire, or is made of thin steel wire by bending and pressing into spiral shape, or is made of plastic by shaping (drawing wire process). The flexible shafts are flexible shafts penetrating through the centers of the gears or the worm gears, and the two ends of each flexible shaft are in butt joint with the axes of the gears or the worm gears to form an O shape. The inner flexible shaft (10) and the flexible shaft (14) drive the brush hair to brush the inner teeth. The outer flexible shaft (18) and the flexible shaft (24) drive bristles to brush the outer teeth. The flexible shaft is divided into 3 sections: the flexible shaft in the tooth box tongue pressing body (32) of the 1 st section is tightly matched with the gear or the worm gear concentrically, and is abbreviated as: and a flexible shaft of the driving section. Section 2, insert the brush hair end from flexible axle to flexible axle that the tongue body (32) both sides output is pressed to the gearbox, abbreviation: and the connecting section is a flexible shaft. The 3 rd section is connected with two ends of the connecting section, is a U-shaped (in the outline shape of tooth arrangement) section for implanting bristles on a flexible shaft, and is abbreviated as: the U-shaped section flexible shaft is shown in figures 9, 10, 11 and 13-1.

The inner upper flexible shaft (10) is penetrated into the axle center of the upper worm wheel and the gear (37), namely the driving section flexible shaft is tightly matched with the upper worm wheel and the gear (37). The connecting section is very short, bearings are not required to be supported at two ends of the U-shaped section flexible shaft, a thin sheet is used at the lower end of the U-shaped center of the flexible shaft (10) [ the thickness of the bearings is very thin ], and the bearings (17), the bearings (22) and the bearings (28) are all sheet bearings. In order to prevent the brush hair on the bristle-planting body from being sparse, the bristle-planting body is encrypted in the inclined direction and the bristle-planting body is supported by a bristle-planting bearing (13), flexible shafts (10) on two sides of the sheet bearing (13) penetrate or wrap a cylindrical bristle-planting body (11), and the brush hair (12) is planted on the bristle-planting body (11). The rotary bristles implanted on the bristle implanting body are all in an archimedes spiral shape and are arranged in uneven lengths. Or the bristle is directly wound on the flexible shaft by removing the bristle planting body. The length of the brush hair marked in the figure is the same, and the brush hair is neat and attractive. In practice, the rotating bristles of the invention are all arranged in an archimedes spiral shape and have different lengths. One end of the middle end bearing (13) of the supporting flexible shaft (10) is connected with the upper end of the center of the tooth box tongue pressing body (32).

The inner upper flexible shaft (14) penetrates into the axes of the lower worm wheel and the gear (38), namely the driving section flexible shaft is tightly matched with the lower worm wheel and the gear. The connecting section is very short, and the two ends of the flexible shaft of the U-shaped section are not required to be supported by bearings. The lower end of the U-shaped flexible shaft center of the flexible shaft (14) is supported by a sheet bearing (17), the flexible shafts (14) at two sides of the bearing (17) penetrate or wrap a cylindrical bristle implanting body (15), and bristles (16) are implanted on the bristle implanting body (15). One end of the middle end bearing (17) of the supporting flexible shaft (14) is connected with the lower end of the center of the tooth box tongue pressing body (32).

The flexible shaft (18) on the outer side of the driving section penetrates into the axle center (three are in tight fit) of the gear (39) and the gear (40). The two sides of the upper end of the connecting section flexible shaft (18) are respectively supported by a bearing (21) and a bearing (23). The lower end of the central part of the U-shaped flexible shaft is provided with transverse friction lines by the side surface of the strip-shaped bearing base, the side surface of the strip-shaped bearing base is designed to be provided with the transverse friction lines, and the purpose of the U-shaped flexible shaft is to insert two concave notch elastic clamping pieces (6) and clamping pieces (8) to increase the friction force of the two, and when the two are pulled by proper force, namely acting force generated when the brush hair works, the two are not separated. The bearing has the functions of supporting the flexible shaft and traction the flexible shaft, and is abbreviated as follows: the base of the elongated bearing (22) is supported. The two sides of the bearing (22) are penetrated or wrapped with a cylindrical bristle implanting body (19) of the flexible shaft (18), and the bristle (20) is implanted on the bristle implanting body (19). Fig. 10, 11, and 12 show the same.

The lower flexible shaft (24) at the outer side of the driving section penetrates into the axle center (the three are in tight fit) of the gear (41) and the gear (42). The two sides of the upper end of the connecting section flexible shaft (24) are respectively supported by a bearing (27) and a bearing (29), and the lower end of the central part of the U-shaped flexible shaft is supported by the base of the strip-shaped bearing (28). The two sides of the bearing (28) are penetrated or wrapped with a cylindrical bristle implanting body (25) of the flexible shaft (24), and the bristle (26) is implanted on the bristle implanting body (25). Fig. 10, 11, and 12 show the same.

The inner upper flexible shaft (10) and the inner lower flexible shaft (14) are parallel to each other in an equipotential manner. The outer upper flexible shaft (18) and the outer lower flexible shaft (24) are parallel to each other in an equipotential manner. The inner upper flexible shaft (10) and the inner lower flexible shaft (14) are parallel to the outer upper flexible shaft (18) and the outer lower flexible shaft (24).

In order to prevent the gear box tongue pressing body (32) from rotating, the worm gear, the worm and the gear are rotated, the generated vibration is transmitted to the middle part of the gear box tongue pressing body (32) to collide with the incisors. An elastic anti-collision sleeve (47) made of an elastic body and with a mouth-shaped section is sleeved at the middle end of the tooth box tongue pressing body (32) so as to buffer a collision diagram 15 of the tooth when the tooth box tongue pressing body (32) vibrates.

Part 2: support housing (30) is shown in fig. 14.

A rotary flexible shaft for supporting and protecting the outer side of the brush hair assembly (50), and a brush hair implanting body for protecting and wrapping the flexible shaft, wherein the brush hair implanting cover is abbreviated as: a support cover (30).

The upper end of the supporting cover (30) (only supporting the part of the flexible shaft without hair planting) is tooth-shaped. The protective support cover (30) outside the flexible shaft is designed into a tooth shape (the teeth are folded when bending, namely the volume of the bristle head assembly is reduced as shown in figure 3) and is shown in figures 9, 10 and 11. In order to prevent the brush hair from being clamped at the joint of the bent tooth shape and the tooth shape of the supporting cover (30) of the U-shaped flexible shaft at the lower end of the connecting section, plastic elastic product rubber, silica gel and other elastic bodies are added between the two tooth shapes, the elastic bodies (31) are filled between the two tooth shapes to form a bearing with a continuous section of a C-shaped shrimp waist rigid framework protecting supporting cover (30) for supporting the U-shaped flexible shaft, the brush hair is controlled, the supporting cover (30) surrounds and compresses the rotary brush hair, the rotary brush hair is tightly clung to the tooth surface of the gum tooth, and the rotary brush hair is rubbed on the supporting cover (30) and the gum tooth to be shown in figures 5-4, 6 and 8.

The lower end of the center of the supporting cover (30) is provided with a square hole which is matched with the square periphery of the handle (1) in a sliding way, the square hole is symmetrical to the left side and the right side of the lower end of the square hole, a rectangular hole which is larger than the cross section area of the elastic brush diameter is respectively arranged on the left side and the right side of the square hole, and the elastic necks of the left brush (43) and the right brush (44) of the jaw surface are not contacted with the periphery of the rectangular hole (the resistance of the rectangular hole is reduced) when the rectangular hole moves in the rectangular hole, namely, the elastic necks of the two brush heads do suspension movement or sliding fit in the rectangular hole. The upper and lower sides of the square hole are respectively provided with an elongated flat hole which is symmetrical to the lower end of the square hole and is used for penetrating the base of the strip bearing (22) and the base of the strip bearing (28) as shown in figures 7-1, 10, 11 and 13.

Part 3: 5 Kong Zhutu, shown in the drawings.

The cylinder is made of elastomer (rubber, silica gel elastic plastic and the like), and the cylinder with 5 holes in the straight direction is abbreviated as: 5-hole column (48).

Part 4: the left brush (43) and the right brush (44) are shown in fig. 16.

Is made of elastic plastic (or other elastic materials), and a left brush (43) and a right brush (44) with bristles are implanted at two sides of a bristle head base (the thickness of the bristle head base is reduced, the bristle height is reduced, and then the volume of a bristle head assembly (49) is also reduced, so that the toothbrush robot is suitable for children to use).

The 4 parts form a bristle head assembly (49) in the following order:

The outer U-shaped flexible shaft (18) and the flexible shaft (24) which are output by the bristle assembly (50) are respectively supported by a bearing (21), a bearing (23), a bearing (27) and 4 bases [ the bearing (21) and the bearing (27) of the bearing (29), the bearing (27) and the bearing (29) bases can be mutually connected to become two ends ], and the 4 bearing bases are slidably arranged at the lower end of the connecting section of the supporting cover (30) (a sliding groove or a sliding guide rail can be arranged in the supporting cover (30)) in a matching way. The two long strip bearings (22) in the middle of the two outer flexible shafts are supported, the end heads of the bearings (28) penetrate through two long strip flat holes in the middle bottom of the supporting cover (30) respectively, the base root parts of the two long strip bearings are tightly matched with the two long strip flat holes in the middle bottom of the supporting cover (30), and the base parts of the two long strip bearings at the lower end heads extend out of the supporting cover (30). The 5 holes of the supporting cover (30) are aligned with the 5 holes of the 5-hole column (48) in a sealing connection, and bases of two strip bearings extending out of the supporting cover (30) are inserted into the two holes of the 5-hole column (48). The ends of two elastic brush shanks of a left brush (43) and a right brush (44) of the tooth brushing occlusal surface penetrate into two holes at the lower ends of a supporting cover (30) and a 5-hole column (48) from two holes between a flexible shaft (10) and a flexible shaft (18) of a bristle assembly (50) and a flexible shaft (14) and a flexible shaft (24) which are parallel to each other. The lower end of the supporting cover (30) is connected with the 5-hole column (48) in a sealing way. To form a bristle head assembly (49).

3. The mating relationship of handle assembly (1) and bristle head assembly (49) is shown in fig. 2.

The end surface of the tongue body (32) is pressed by the brush hair assembly (50) and the hole in the center of the driving gear (33). A left brush (43) and a right brush (44) are used for brushing the ends of the shin. And two guiding ends of the long strip bearing base for supporting the flexible shaft. The square (fig. 7 and 9) shells at the upper end of the handle (1) are aligned one by one respectively, the output power ends are arranged in the shells, and the shaft heads of the rotating and vibrating shafts (2) penetrate into square holes in the centers of the lower ends of the supporting cover (30) and the 5-hole column (48). The handle (1) outputs an upper column body (3) which reciprocates and a concave end of an upper column body (4) which reciprocates. The opening of the elastic clamping piece (6) connected with the upper column body (5) which performs telescopic movement and the opening of the elastic clamping piece (8) connected with the lower column body (7) which performs telescopic movement are shown in figure 2. The bristle head assembly (49) is then forcibly inserted against the handle (1). I.e. the shaft (2) is in close fit with the gear (33). The left column body (3), the right column body (4) are respectively in tight fit with the left brush head (43) and the right brush head (44). The clamping piece (6), the clamping piece (8) is tightly matched with the transverse friction lines of the base of the long-strip-shaped bearing (22) and the base end of the long-strip-shaped bearing (28) respectively, as shown in fig. 9, 10 and 11. That is, the handle assembly (1) and the bristle head assembly (49) are integrated into a whole, which constitutes the tooth brushing robot of the present invention shown in fig. 1.

4. The pre-brushing operation of the present invention, the bristle head assembly (49) is volumetrically contracted, as shown in fig. 3.

The handle (1) is held by hand, the intelligent control [ the side of the upper end of the handle (1) is lightly touched, the position convenient for finger touching is provided with the automatic program touch control button ] switch button (9), and the automatic program touch control button switch is shown in fig. 1. The upper column body (5) and the lower column body (7) do reciprocating telescopic motion are started by a program, the end heads of the upper column body (5) and the lower column body (7) are respectively connected with an elastic clamping piece (6) and an elastic clamping piece (8), the base which are respectively clamped and are provided with a strip-shaped supporting bearing (22) and the base which are respectively connected with the middle part of a traction supporting cover (30) into a whole, the base respectively acts on downward traction force of a flexible shaft (18) and a flexible shaft (24), the two flexible shafts are bent downwards and inwards, so that the flexible shaft (18) and the flexible shaft (24) are pulled by the acting force of the bearing (22) and the bearing (28) downwards and inwards, namely, the two sides of the two flexible shafts shrink inwards; the force is transmitted to both sides of the upper end of the supporting cover (30), so that the supporting flexible shaft (18), the bearing (21), the bearing (23), the bearing (27) supporting the flexible shaft (24) and the bearing (29) are extruded and deformed inwards by the supporting cover (30), and the bearing (21), the bearing (23), the bearing (27) and the bearing (29) slide inside the supporting cover (30) [ at the lower end of the connecting section of the supporting cover (30), a section of track or a chute can be arranged for the bearings (21), (23), (27) and (29) to slide upwards ]. The flexible shaft (18), the bristle planting body (19) and the brush hair (20), the flexible shaft (24), the bristle planting body (25) and the brush hair (26) are extruded and contracted inwards to deform. The implanted bristles (12) on the bristle-implanting body (11) of the flexible shaft (10) and the implanted bristles (16) on the bristle-implanting body (15) of the flexible shaft (14) are deformed along with the inward extrusion force by the conduction of the acting force. At the same time, the upper ends of the left brush (43) and the right brush (44) of the brushing jaw face are respectively pressed inwards at the two sides of the upper end of the symmetrical center of the rigid supporting cover (30). The rectangular holes at both sides of the symmetrical middle lower end of the supporting cover (30) are pressed inwards to form a left brush (43) and a right brush (44), and the two elastic brush necks deform inwards in the rectangular holes. The width of the support cover (30) is bent inwards, so that the width of the support cover (30) is narrowed, and the support cover (30) can conveniently pass through between the upper teeth and the lower teeth. The upper column body (5) pulls the base of the long strip bearing (22) through the connected clamping piece (6), the lower column body (7) pulls the base of the long strip bearing (28) through the connected clamping piece (8), the inner side of the lower end of the supporting cover (30) is bent, and the 5-hole column (48) column is compressed downwards. The two resultant forces squeeze to minimize the volume of the bristle head assembly (49) as shown in fig. 3.

5. The brushing operation of the present invention is shown in fig. 8 and 9.

When brushing teeth, only the bristle head assembly (49) with the minimum volume is placed into the oral cavity, the tongue is pressed downwards by the tooth shell tongue pressing body (32), and the intelligent switch (9) is touched, so that the action is opposite (the upper column body (5) pulls the base of the strip bearing (22) through the connected clamping piece (6), the lower column body (7) pulls the base of the strip bearing (28) through the connected clamping piece (8), the inner side of the lower end of the supporting cover (30) is bent, the bristle head volume is restored from the small-to-large direction, namely, bristles of the bristle head assembly (49) with the minimum volume are extruded to be unfolded, and the volume of the bristle head assembly (49) is increased to be shown in the working state figure 1. Simultaneously, the upper and lower incisors are snapped or contacted with the elastomer anti-tooth-knocker sleeve (47) as shown in fig. 6-4, fig. 9 and fig. 12. The toothbrush comprises inner upper bristles (12), inner lower bristles (16), outer upper bristles (20), outer lower bristles (26), left brushing surface bristles (45), and right brushing surface bristles (46) surrounding three surfaces of teeth (50). Bristles (12), bristles (16), bristles (20), bristles (26) which simultaneously rotate, also surround the teeth (51), gum (52) junctions as shown in fig. 8.

The motor driving assembly of the other patent in the handle (1) is started by touching the intelligent switch (9) to rotate the driving gear (33) which is in tight fit connection with the motor driving assembly to vibrate the shaft (2) while driving the motor driving assembly to rotate, so that the brush hair vibrates the whole brush hair head assembly (49) while rotating. The bristles (12), the bristles (16), the bristles (20) and the bristles (26) vibrate while rotating along the direction from gum to tooth, massaging gum, brushing teeth on two sides (particularly, the bristles which are arranged in uneven length and form archimedes spiral, always have one bristle vertical to tooth surface, and the bristles vertical to tooth surface have the greatest brushing force, so that the cleaning of dirt on tooth surface is most beneficial to the cleaning of dirt on tooth surface) are shown in fig. 5-4, 6 and 8. Simultaneously, the left column body (3) is driven, the right column body (4) is respectively in close fit and movable connection with the brush (43) on the left occlusal surface of the brush and the brush (44) on the right occlusal surface of the brush, so that the brush hairs (45) on the left occlusal surface of the brush and the brush hairs (46) on the right occlusal surface of the brush are shown in figures 1, 4, 9, 10 and 11, and the small circle marked by the brush hairs represents a collection of brush hairs, and the brush hairs do reciprocating motion on the occlusal surfaces of teeth brush hairs. The action of the brush hair is matched with the scientific and correct tooth brushing principle, namely, the brush hair brushes the teeth cleanly.

When the intelligent switch (9) is touched after brushing, the reduced brush head Mao Zong is started to form (49), and the brush head Mao Zong is restored to the minimum volume (49), as shown in fig. 3. After brushing the post-brushing opening, the minimum volume of brush head Mao Zong is ready for withdrawal (49) from the mouth (end of brushing).

6. The present invention provides a self-cleaning bristle head assembly, as shown in figures 1, 9, 10 and 11.

The intelligent switch (9) is touched to the bristle head assembly (49) to be expanded to the maximum, namely, the bristles are fully unfolded, the bristle head assembly (49) with the maximum volume is put into the water-containing mouth wash device, the brush head Mao Zong is submerged into water to form the brush head (49), the intelligent switch (9) is touched to the bristle working state, the bristles do the tooth brushing motion in water, and the bristles are automatically cleaned in water just.

7. The replacement of the bristle head assembly (49) of the present invention is shown in fig. 2.

When the bristle head assembly (49) is replaced, the bristle head assembly can be replaced by pulling out the bristle head assembly from the handle (1), as shown in fig. 2.

Claims (10)

1. The tooth brushing robot is composed of a handle assembly (1) of another patent and a bristle head assembly (49) which are movably spliced; the bristle head assembly (49) is characterized by: the bristle assembly (50), the supporting cover (30), the 5-hole column (48), the left brush (43) and the right brush (44) are sequentially connected.

2. The handle assembly (1) according to claim 1, characterized in that: an intelligent touch button (9) is arranged on the side surface of the handle assembly (1) close to the upper end; a shaft (2) which vibrates and rotates is output at the center of the vertical end surface of the end head of the handle assembly (1); the left and right sides of the shaft (2) are symmetrically provided with a cylinder which performs reciprocating push-pull movement, namely a left cylinder (3) and a right cylinder (4); the upper and lower sides of the shaft (2) are symmetrically provided with a column body which can do telescopic movement, namely an upper column body (5) and a lower column body (7).

3. The bristle sub-assembly (50) according to claim 1, wherein: the worm and the gear are concentrically connected into a whole to form an upper worm and gear (34) and a lower worm and gear (35); the two sides of the upper worm wheel and the gear (37) and the lower worm wheel and the gear (38) are respectively and concentrically connected with a concentric gear into a whole, namely, the gears, the worm wheels and the gears are sequentially connected.

4. The bristle sub-assembly (50) according to claim 1, wherein: the hole at the center of the end face of the gear box tongue pressing body (32) is a hole of a gear (33), one side of the gear (33) is meshed with the gears of the upper worm and the gear (34), and the other side of the gear is meshed with the gears of the lower worm and the gear (35) through a medium tooth (36); the worm parts of the upper worm, the gear (34) and the lower worm and the gear (35) are respectively meshed with the upper worm wheel and the gear (37) and the worm wheels of the lower worm wheel and the gear (38); the gears at two sides of the upper worm wheel and the gear (37) are respectively meshed with the gear (39), the gear (40), and the gears at two sides of the lower worm wheel and the gear (38) are respectively meshed with the gears (41, 42) at two sides.

5. The bristle sub-assembly (50) according to claim 1, wherein: in the driving section of the flexible shaft: the inner side upper flexible shaft (10) penetrates into the axle centers of the upper worm wheel and the gear (37) and the upper worm wheel and the gear are tightly matched into a whole; the inner side lower flexible shaft (14) penetrates into the axes of the lower worm wheel and the gear (38) and is tightly matched into a whole; the flexible shaft (18) penetrates into the axle centers of the gear (39) and the gear (40) and the gear (39) are tightly matched into a whole; the flexible shaft (24) penetrates into the axle centers of the gear (41) and the gear (42) are tightly matched into a whole.

6. The bristle sub-assembly (50) according to claim 1, wherein: the U-shaped flexible shaft (except the middle supporting bearing) is wrapped with a cylindrical bristle planting body, and the cylindrical bristle planting body is respectively planted with bristles which are arranged in a staggered manner and form archimedes spiral; or the brush hair is directly wound on the flexible shaft.

7. The bristle sub-assembly (50) according to claim 1, wherein: the U-shaped section flexible shafts (10) and (14) are respectively supported by sheet-shaped bearings (13) and (17) at the middle ends of the U-shaped section flexible shafts, the ends of the two bearings are respectively connected to the upper side and the lower side of a tooth box tongue pressing body (32); the two ends of the U-shaped flexible shaft are respectively supported by a bearing (21), a bearing (23), a bearing (27) and a bearing (29); the middle end of the U shape is respectively supported by strip-shaped sheet-shaped bearings (22) and (28) to respectively support flexible shafts (18) and (24).

8. The support cage (30) of claim 1, characterized by: the support cover (30) is characterized in that the section of the support cover is a c-shaped shrimp waist, and an elastic body (31) is filled in a joint gap between two tooth shapes of the curved shrimp waist to form a rigid framework with the continuous section of the c-shaped shrimp waist; there are 1 hole in the center of the lower end of the middle part, and 1 hole on each of the left, right, upper and lower sides of the hole symmetrically.

9. The 5-well column (48) of claim 1, wherein: is a cylinder with 5 holes in the direction perpendicular to the radial direction of the cylinder.

10. The bristle head assembly (49) according to claim 1, wherein: 4 bearings for supporting two side ends of the two outer U-shaped flexible shafts are in sliding fit with the inner sides of the supporting covers (30); two sides of the lower end in the middle of the U-shaped flexible shaft are respectively connected with an elongated strip bearing, respectively pass through 2 holes at the bottom of the supporting cover (30), extends beyond the supporting cover (30), supports the lower end of the cover (30), is connected with a 5-hole column (48) in a sealing way; the elastic brush shank ends of the left brush (43) and the right brush (44) are inserted into 2 holes of the support cover (30) and the 5-hole column (48), respectively.