Electric toothbrush head and electric toothbrush

Abstract

The utility model discloses an electric toothbrush head and an electric toothbrush, and relates to the technical field of electric toothbrushes, the electric toothbrush head comprises a toothbrush head, a connecting piece and a power piece, the toothbrush head comprises a brush handle and bristles, and one end, far away from the bristles, of the brush handle is provided with a first insertion hole; the connecting piece is inserted into the first inserting hole, a plurality of clamping blocks are arranged on the outer wall of the connecting piece, a plurality of clamping blocks are arranged on the inner wall of the first inserting hole, a first clamping groove is formed in the interval between any two adjacent clamping blocks, the clamping blocks are correspondingly arranged in the first clamping grooves in a one-to-one mode, and a second inserting hole is formed in the end, away from the toothbrush head, of the connecting piece; an output shaft of the power piece is inserted into the second insertion hole; according to the technical scheme provided by the utility model, the toothbrush head, the connecting piece and the power piece are arranged in the brush head of the electric toothbrush; the multiple connecting pieces are in interference fit with the first clamping groove, so that the toothbrush head can limit the connecting pieces through the clamping blocks and is not prone to loosening, and noise generated when the electric toothbrush works is reduced to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, and in particular to an electric toothbrush head and an electric toothbrush. Background Technology

[0002] An electric toothbrush is a type of toothbrush that uses electricity to vibrate the brush head. The rapid rotation or vibration of the motor motor causes the brush head to vibrate at high frequencies, instantly breaking down toothpaste into fine foam that deeply cleans between teeth. Simultaneously, the vibration of the bristles promotes blood circulation in the mouth and massages the gum tissue. However, in current technology, the connection between the brush head and the connector in electric toothbrushes is relatively loose, which can easily generate significant noise during operation. Utility Model Content

[0003] The main purpose of this utility model is to provide an electric toothbrush head and an electric toothbrush, which aims to solve the problem of excessive noise generated by electric toothbrushes during operation.

[0004] To achieve the above objectives, the present invention provides an electric toothbrush head comprising: a toothbrush head, a connector, and a power component. The toothbrush head includes a handle and bristles at one end of the handle, with a first insertion hole at the end of the handle away from the bristles. The connector is inserted into the first insertion hole, and the outer wall of the connector has multiple locking blocks spaced apart circumferentially along the connector. The inner wall of the first insertion hole has multiple clamping blocks spaced apart circumferentially along the first insertion hole. The gap between any two adjacent clamping blocks forms a first slot for accommodating the locking blocks, and the multiple locking blocks are correspondingly disposed one-to-one in the first slot. A second insertion hole is opened at the end of the connector away from the toothbrush head. The power component has an output shaft inserted into the second insertion hole.

[0005] In one embodiment, the connector includes a body and a base. The body is disposed on the side of the base near the toothbrush head. The body is inserted into the first insertion hole. The snap-fit ​​block is disposed on the outer wall of the body. The second insertion hole is axially opened in the body. The base has a through hole communicating with the second insertion hole. The end of the brush handle away from the bristles is connected to the side of the base near the body.

[0006] In one embodiment, a first slot is provided on the side of the base near the body, and a plug is provided at the end of the brush handle near the base to cooperate with the first slot, the plug being inserted into the first slot.

[0007] In one embodiment, the insert is connected to the wall of the first slot by ultrasonic welding.

[0008] In one embodiment, the second socket includes a first cavity and a second cavity arranged sequentially along the axial direction and communicating with each other. The second cavity is located at one end of the first cavity near the power member. The output shaft has a first output segment and a second output segment arranged sequentially along the axial direction. The second output segment is located at one end of the first output segment near the power member. The first output segment is located in the first cavity, and the second output segment is located in the second cavity.

[0009] In one embodiment, the first output section is interference-fitted with the first cavity, and the inner wall of the first cavity has a clearance groove that extends axially.

[0010] In one embodiment, the side wall of the body is provided with a buckle, the buckle is positioned corresponding to the second cavity, and the side wall of the second cavity is provided with a through hole for the buckle to pass through. When the output shaft is inserted into the second insertion hole, the buckle abuts against the output shaft through the through hole.

[0011] In one embodiment, the buckle has a protrusion on the side near the output shaft, and the side wall of the second output section has a second slot that mates with the protrusion. The protrusion is inserted into the second slot and abuts against the wall of the second slot.

[0012] In one embodiment, the outer wall of the connector is further provided with a rib, the rib extending radially outward from the outer wall of the connector, and the inner wall of the first insertion hole is provided with a second slot that mates with the rib, the rib being inserted into the second slot.

[0013] This utility model also proposes an electric toothbrush, including the electric toothbrush head described in any of the above.

[0014] The technical solution of this utility model adopts a toothbrush head, a connector, and a power component in the electric toothbrush head. The toothbrush head includes a handle and bristles at one end of the handle. The end of the handle away from the bristles has a first insertion hole for the connector to be inserted into. The connector is inserted into the first insertion hole. The outer wall of the connector has multiple clamping blocks spaced apart circumferentially. The inner wall of the first insertion hole has multiple limiting blocks spaced apart circumferentially. The gap between any two adjacent clamping blocks forms a first locking groove for accommodating the locking block. The locking block is correspondingly set in the first locking groove one-to-one. The end of the connector away from the toothbrush head has a second insertion hole, and the output shaft of the power component is inserted into the second insertion hole. This allows the power component to control the vibration of the toothbrush head through the connector. Through the interference fit between the multiple connectors and the first locking groove, the handle can limit the connector through the clamping blocks, making it less prone to loosening, thereby reducing the noise generated by the electric toothbrush during operation to a certain extent. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of an embodiment of the electric toothbrush head provided by this utility model;

[0017] Figure 2 An exploded view of an embodiment of the electric toothbrush head provided by this utility model;

[0018] Figure 3 for Figure 1 Sectional view at point AA;

[0019] Figure 4 for Figure 3 Sectional view at point BB;

[0020] Figure 5 for Figure 3 Sectional view at CC;

[0021] Figure 6 for Figure 3 Sectional view at point DD;

[0022] Figure 7 This is a schematic diagram of the connecting member in one embodiment of the electric toothbrush head provided by this utility model.

[0023] Explanation of icon numbers:

[0024] 100. Electric toothbrush head; 1. Toothbrush head; 11. Brush handle; 111. First insertion hole; 111a. First slot; 111b. Clamping block; 111c. Second slot; 112. Insertion block; 12. Brush bristles; 2. Connector; 21. Body; 211. Snap-fit ​​block; 212. Second insertion hole; 212a. Clear groove; 213. Buckle; 22. Base; 221. Through hole; 222. First slot; 23. Rib; 3. Power component; 31. Output shaft; 311. First output section; 312. Second output section; 312a. Second slot.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model proposes an electric toothbrush head 100.

[0030] Please see Figure 1-7 In one embodiment of this utility model, the electric toothbrush head 100 includes: a toothbrush head 1, a connector 2, and a power component 3. The toothbrush head 1 includes a handle 11 and bristles 12 disposed at one end of the handle 11. A first insertion hole 111 is provided at the end of the handle 11 away from the bristles 12. The connector 2 is inserted into the first insertion hole 111. A plurality of locking blocks 211 are provided on the outer wall of the connector 2. The plurality of locking blocks 211 are spaced apart along the circumference of the connector 2. The inner wall of the first insertion hole 111 is... The device has multiple clamping blocks 111b, which are spaced apart circumferentially along the first insertion hole 111. The gap between any two adjacent clamping blocks 111b forms a first slot 111a for accommodating the snap-fit ​​block 211. The multiple snap-fit ​​blocks 211 are correspondingly arranged in the first slot 111a one-to-one. The end of the connector 2 away from the toothbrush head 1 has a second insertion hole 212. The power component 3 has an output shaft 31, which is inserted into the second insertion hole 212.

[0031] In this embodiment, the toothbrush head 1 includes a handle 11 and bristles 12. The electric toothbrush cleans teeth through the bristles 12. A first insertion hole 111 is opened at the end of the handle 11 away from the bristles 12. The first insertion hole 111 is used to insert a connector 2 for transmission connection with the connector 2. The connector 2 is generally conical. The outer wall of the connector 2 is provided with multiple locking blocks 211. The multiple locking blocks 211 are spaced apart along the axial direction of the cone. The spacing between the multiple locking blocks 211 is the same, so that the transmission structure of the connector 2 to the handle 11 is more balanced. The first insertion hole 111 is generally conical. The shape of the inner wall of the first insertion hole 111 matches the shape of the outer wall of the connector 2, so that the connector 2 can be easily inserted into the first insertion hole 111. The inner wall of the first insertion hole 111 has multiple clamping blocks 111b protruding into the hole. The clamping blocks 111b are located at the same height as the snap-fit ​​block 211 on the inner wall of the first insertion hole 111. The multiple clamping blocks 111b are arranged circumferentially along the inner wall of the first insertion hole 111. The gap between any two adjacent clamping blocks 111b forms a first slot 111a for the snap-fit ​​block 211 to be inserted. When the connector 2 is installed in the first insertion hole 111, the snap-fit ​​block 211 can be inserted into the first slot 111a. The two adjacent clamping blocks 111b can clamp and limit the snap-fit ​​block 211 from both sides of the snap-fit ​​block 211 into the first slot 111a, thereby restricting the relative rotation between the connector 2 and the brush handle 11. Meanwhile, the locking block 211 is interference-fitted with the first locking groove 111a, allowing the clamping block 111b to clamp the locking block 211, thereby limiting the axial position of the connector 2 within the first insertion hole 111; and making the connection between the locking block 211 and the clamping block 111b tighter, thus preventing loosening between the locking block 211 and the clamping block 111b, and reducing the noise generated by the electric toothbrush during use. A second insertion hole 212 is opened on the side of the connector 2 away from the toothbrush head 1. When the output shaft 31 of the power component 3 is inserted into the second insertion hole 212, the output shaft 31 can transmit power to the toothbrush head 1 through the connector 2 under the action of the power component 3, providing power for the vibration of the toothbrush head 1.

[0032] The technical solution of this utility model involves setting a toothbrush head 1, a connector 2, and a power component 3 in an electric toothbrush head 100. The toothbrush head 1 includes a handle 11 and bristles 12 located at one end of the handle 11. The end of the handle 11 away from the bristles 12 is provided with a first insertion hole 111 for inserting the connector 2. The connector 2 is inserted into the first insertion hole 111. The outer wall of the connector 2 is provided with a plurality of clamping blocks 111b arranged circumferentially at intervals. The inner wall of the first insertion hole 111 has a plurality of limiting blocks arranged circumferentially at intervals. The interval between any two adjacent clamping blocks 111b forms a spacer. The first slot 111a of the receiving and receiving block 211 is provided with one-to-one corresponding to the first slot 111a. The end of the connector 2 away from the toothbrush head 1 is provided with a second insertion hole 212. The output shaft 31 of the power component 3 is inserted into the second insertion hole 212. This allows the power component 3 to control the toothbrush head 1 to vibrate through the connector 2. Through the interference fit between the multiple connectors 2 and the first slot 111a, the brush handle 11 can limit the connector 2 through the clamping block 111b to prevent it from loosening, thereby reducing the noise generated by the electric toothbrush during operation to a certain extent.

[0033] See Figure 2 , 3 In one embodiment, the connector 2 includes a body 21 and a base 22. The body 21 is disposed on the side of the base 22 near the toothbrush head 1. The body 21 is inserted into a first insertion hole 111. A snap-fit ​​block 211 is disposed on the outer wall of the body 21. A second insertion hole 212 is axially opened in the body 21. The base 22 has a through hole 221 communicating with the second insertion hole 212. The end of the brush handle 11 away from the bristles 12 is connected to the side of the base 22 near the body 21. The base 22 is disposed on the supporting body 21. The outer diameter of the base 22 is larger than the outer diameter of the body 21, so that the connector 2 forms a structure in which the outer diameter of the automatic force component 3 gradually decreases towards the toothbrush head 1. The snap-fit ​​block 211 is disposed on the outer wall of the body 21, and is disposed at the end of the outer wall of the body 21 near the toothbrush head 1, so that the connector 2 can be inserted into the first insertion hole 111. The outer diameter of the base 22 is larger than the outer diameter of the brush handle 11, so that the end of the brush handle 11 away from the bristles 12 can abut against the end of the base 22 near the body 21. After abutting, the brush handle 11 cannot move axially toward the base 22, thereby limiting the relative position of the toothbrush head 1 and the connector 2 along the axial direction.

[0034] See Figure 2 , 37. In one embodiment, a first slot 222 is formed on the side of the base 22 near the body 21, and a plug 112 that mates with the first slot 222 is provided at the end of the brush handle 11 near the base 22. The plug 112 is inserted into the first slot 222. The first slot 222 is annularly arranged on the end face of the base 22 near the body 21. The annular groove is arranged around the axial direction of the connector 2. The first slot 222 is used to limit the plug 112. The plug 112 is an annular block arranged on the end face of the brush handle 11 near the base 22. The annular block is arranged around the axial direction of the first connector 2. When the plug 112 is inserted into the first slot 222, the plug 112 is limited in the slot. Through the cooperation between the plug 112 and the slot, the radial relative position of the brush handle 11 and the connector 2 can be limited, and the connector 2 and the toothbrush head 1 can be prevented from loosening radially.

[0035] In one embodiment, the insert 112 is connected to the wall of the first slot 222 by ultrasonic welding. Welding the insert 112 and the first slot 222 by ultrasonic welding can reduce welding time, improve processing efficiency, and the weld strength of the brush handle 11 and the base 22 can be close to that of the raw material, thereby improving the connection strength between the toothbrush head 1 and the connector 2, and avoiding the use of adhesive, thus avoiding the problem of delamination caused by adhesive corrosion.

[0036] See Figure 3 , 5 In one embodiment, the second socket 212 includes a first cavity and a second cavity arranged sequentially along the axial direction and communicating with each other. The second cavity is located at the end of the first cavity near the power member 3. The output shaft 31 has a first output segment 311 and a second output segment 312 arranged sequentially along the axial direction. The second output segment 312 is located at the end of the first output segment 311 near the power member 3. The first output segment 311 is located in the first cavity, and the second output segment 312 is located in the second cavity. The first cavity and the second cavity are used to correspondingly accommodate the first output segment 311 and the second output segment 312 of the output shaft 31. When the output shaft 31 is inserted into the second socket 212, the power member 3 can drive the toothbrush head 1 to vibrate through the connector 2. The inner diameter of the first cavity is smaller than the inner diameter of the second cavity to facilitate the insertion of the output shaft 31 into the second socket 212.

[0037] In one embodiment, the first output segment 311 is interference-fitted with the first cavity, and the inner wall of the first cavity has a clearance groove 212a that extends axially. The outer contour dimension of the first output segment 311 is slightly larger than the inner contour dimension of the first cavity, so that the first output segment 311 can be interference-fitted with the first cavity, thereby confining the first output segment 311 within the first cavity and reducing the noise generated when the electric toothbrush is working. The clearance groove 212a is used to form a clearance space within the first cavity, thereby ensuring that the first output segment 311 can be interference-fitted with the first cavity while reducing the friction between the outer wall of the first output segment 311 and the inner wall of the first cavity, facilitating the insertion of the first output segment 311 into the first cavity, and preventing the output shaft 31 from being difficult to install or remove in the second insertion hole 212 due to excessive insertion and removal force.

[0038] In one embodiment, the side wall of the body 21 is provided with a buckle 213, which is positioned corresponding to the second cavity. The side wall of the second cavity has a through hole 221 for the buckle 213 to pass through. When the output shaft 31 is inserted into the second insertion hole 212, the buckle 213 abuts against the output shaft 31 through the through hole 221. There is a gap between the outer wall of the body 21 of the connector 2 and the inner wall of the first insertion hole 111. When the connector 2 is inserted into the first insertion hole 111, the gap formed between the outer wall of the body 21 and the inner wall of the first insertion hole 111 can provide swing space for the buckle 213. The through hole 221 is used for the buckle 213 to pass through, so that the buckle 213 can pass through the through hole 221 and abut against the output shaft 31 in the second insertion hole 212. The buckle 213 is elastic. When the output shaft 31 is inserted into the second socket 212, the buckle 213 can continuously abut against the outer wall of the output shaft 31 through its own elasticity, so as to fit and abut against the outer wall of the output shaft 31.

[0039] In one embodiment, the latch 213 has a protrusion on the side near the output shaft 31, and the side wall of the second output section 312 has a second groove 312a that mates with the protrusion. The protrusion is inserted into the second groove 312a and abuts against the groove wall of the second groove 312a. The protrusion is used to mate with the second groove 312a to limit the axial relative position between the output shaft 31 and the connector 2. When the output shaft 31 is inserted into the second insertion hole 212, the protrusion on the latch 213 can pass through the through hole 221 and be engaged in the second groove 312a, thereby being confined within the second groove 312a. At this time, the output shaft 31 can be confined by the protrusion, so that it cannot be dislodged from the second insertion hole 212 under the action of external force within a certain range.

[0040] See Figure 2 , 6In one embodiment, the outer wall of the connector 2 is further provided with a rib 23, which extends radially outward from the outer wall of the connector 2. The inner wall of the first insertion hole 111 is provided with a second slot 111c that mates with the rib 23, and the rib 23 is inserted into the second slot 111c. The mate between the rib 23 and the slot can restrict the rotation of the connector 2 in the first insertion hole 111. When the rib 23 is inserted into the slot, the rib 23 is blocked by the slot wall and cannot move circumferentially, thereby improving the power transmission efficiency of the connector 2 and increasing the swing amplitude of the toothbrush head 1, so as to improve the cleaning efficiency of the electric toothbrush.

[0041] This utility model also proposes an electric toothbrush, which includes the electric toothbrush head 100 of any of the above embodiments. The specific structure of the electric toothbrush head 100 is as described in the above embodiments. Since this electric toothbrush adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The electric toothbrush, through the mutual insertion and cooperation between the connecting member 2 and the toothbrush head 1 in the brush head, and the interference fit between the output shaft 31 and the connecting member 2, makes the force transmission structure of the electric toothbrush more stable during operation, and the various structures are less prone to loosening, thereby reducing the noise generated by the electric toothbrush during operation.

[0042] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electric toothbrush head, characterized in that, include: A toothbrush head, the toothbrush head including a handle and bristles at one end of the handle, the end of the handle away from the bristles having a first insertion hole; A connector is inserted into the first socket. The outer wall of the connector is provided with multiple snap-fit ​​blocks, which are spaced apart circumferentially along the connector. The inner wall of the first socket is provided with multiple clamping blocks, which are spaced apart circumferentially along the first socket. The gap between any two adjacent clamping blocks forms a first slot for accommodating the snap-fit ​​blocks. The multiple snap-fit ​​blocks are correspondingly arranged one-to-one in the first slot. A second socket is opened at the end of the connector away from the toothbrush head. A power component having an output shaft that is inserted into the second socket.

2. The electric toothbrush head as described in claim 1, characterized in that, The connector includes a body and a base. The body is located on the side of the base near the toothbrush head. The body is inserted into the first insertion hole. The snap-fit ​​block is located on the outer wall of the body. The second insertion hole is opened axially in the body. The base has a through hole communicating with the second insertion hole. The end of the brush handle away from the bristles is connected to the side of the base near the body.

3. The electric toothbrush head as described in claim 2, characterized in that, The base has a first slot on the side near the body, and the brush handle has a plug at the end near the base that mates with the first slot. The plug is inserted into the first slot.

4. The electric toothbrush head as described in claim 3, characterized in that, The insert block is connected to the wall of the first slot by ultrasonic welding.

5. The electric toothbrush head as described in claim 2, characterized in that, The second socket includes a first cavity and a second cavity arranged sequentially along the axial direction and connected to each other. The second cavity is located at the end of the first cavity near the power component. The output shaft has a first output segment and a second output segment arranged sequentially along the axial direction. The second output segment is located at the end of the first output segment near the power component. The first output segment is located in the first cavity, and the second output segment is located in the second cavity.

6. The electric toothbrush head as described in claim 5, characterized in that, The first output section is interference-fitted with the first cavity, and the inner wall of the first cavity has a clearance groove that extends axially.

7. The electric toothbrush head as described in claim 5, characterized in that, The side wall of the main body is provided with a buckle, which is positioned corresponding to the second cavity. The side wall of the second cavity has a through hole for the buckle to pass through. When the output shaft is inserted into the second insertion hole, the buckle abuts against the output shaft through the through hole.

8. The electric toothbrush head as described in claim 7, characterized in that, The buckle has a protrusion on the side near the output shaft, and the side wall of the second output section has a second slot that mates with the protrusion. The protrusion is inserted into the second slot and abuts against the wall of the second slot.

9. The electric toothbrush head as described in any one of claims 1 to 8, characterized in that, The outer wall of the connector is also provided with a rib, which extends radially outward from the outer wall of the connector. The inner wall of the first insertion hole is provided with a second slot that mates with the rib, and the rib is inserted into the second slot.

10. An electric toothbrush, characterized in that, Includes an electric toothbrush head as described in any one of claims 1 to 9.

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