Telescopic interdental brush

Abstract

The invention is a telescopic built-in interdental brush, which comprises a built-in interdental brush, a telescopic mechanism and a handle. The built-in interdental brush and the telescopic mechanism are connected together, and the telescopic mechanism is driven to drive the built-in interdental brush to extend from the handle to clean the dental crevice. After use, the built-in interdental brush is retracted into the receiving space of the handle through the telescopic mechanism, and the handle forms a small instrument box, which is very convenient to carry. The end face of the delivery device of the built-in interdental brush is a bevel, which forms a beta angle with the axial direction of the telescopic built-in interdental brush, and the beta angle is less than 90°. An acute angle taper is formed on the upper part of the end face, and the position of the taper tip can be embedded in the dental crevice. The brush body is pushed, the working part of the brush body extends from the elbow pipe and enters the dental crevice, which solves the problem that the existing built-in interdental brush is difficult to align with the dental crevice and is easy to stab the gum tissue. Moreover, the taper structure is more difficult to slip off, and the positioning is more convenient and stable.

Description

TECHNICAL FIELD

[0001] The present application relates to a tool for oral cleaning, in particular an interdental brush for cleaning interdental spaces. BACKGROUND

[0002] Due to age growth, pathology, etc., it is easy to cause gum atrophy, tooth gap expansion, and food residues are extremely easy to cause. If it cannot be cleaned in time, it will produce oral odor on the one hand, and it is easy to cause various dental diseases, oral diseases, especially periodontitis.

[0003] In view of this situation, various interdental brushes, also known as interdental brushes, have been developed on the market for users to choose. Although there are various structures and different specifications of products on the market, the existing products generally have the disadvantages of not being easy to align the tooth gap and not being easy to observe the tooth gap. Moreover, it is not convenient to carry when going out, and it is not convenient to store after use. Especially when cleaning the tooth gap between the third molar and the second molar, or the tooth gap between the second molar and the first molar, or the tooth gap between the first molar and the second premolar, since the position required for cleaning the tooth gap is in the deep part of the oral cavity, the brush body of the interdental brush of the prior art usually adopts a brush structure attached with a high molecular material fiber by a wire cable, so that the wire is very easy to stab the gum tissue when operating by feeling.

[0004] In view of the disadvantages of the interdental brush of the prior art in cleaning the tooth gap between the molars, such as difficulty in entering the tooth gap, easy to stab the gum, and inconvenience in carrying and using when going out, the applicant has applied for a "Telescopic Interdental Brush" (Application No. 201811648006.4) to improve the existing interdental brush, and the present application is a further improvement on the delivery device of the above-mentioned patent. SUMMARY

[0005] The telescopic interdental brush of the present application has a special bevel design on the end face of the delivery device, which can better position the tooth gap during use. When the interdental brush is pushed and pulled, the bevel can be well embedded in the tooth gap and is not easy to slip off, so that the positioning is more convenient and stable.

[0006] The telescopic interdental brush of the present application, characterized in that: the telescopic interdental brush 900 comprises an interdental brush 101, a telescopic mechanism 200 and a handle 300; the handle 300 comprises a containing space 31, the interdental brush 101 can be extended out of the containing space 31 of the handle 300 or retracted into the containing space 31 through the telescopic mechanism 200; the end face 12-11 of the delivery device 12 of the interdental brush 101 is a bevel, and the bevel forms a β angle with the axial direction of the telescopic interdental brush 900.

[0007] The telescopic built-in interdental brush of the present application can clean the interdental space when the built-in interdental brush 101 is pushed out of the handle 300 through the telescopic mechanism 200. When the telescopic mechanism 200 retracts the built-in interdental brush 101 into the receiving space 31 of the handle 300, the handle 300 forms a small device box, which is very convenient to carry.

[0008] The slope design of the end face 12-11 of the delivery device 12 can better position the interdental space. When the interdental brush is pushed and pulled, the end face 12-11 with a slope design can be well inlaid in the interdental space and is not easy to slip off, so the positioning is more convenient and stable. The outlet of the bend 12-1 at the front end of the delivery device 12 is pressed against the interdental space that needs to be cleaned, the working part 11-1 of the brush body 11 is stretched out of the bend 12-1 and enters the interdental space, which well solves the problem that the existing built-in interdental brush is difficult to align with the interdental space and is easy to injure the gum tissue.

[0009] Further, the β angle is less than 90°.

[0010] The preferred range of the β angle is 5°-50°. The β angle is an acute angle less than 90°, especially an acute angle between 5° and 50°, so that an acute angle taper is formed at the upper part of the end face 12-11, and the position of the taper tip can be well inlaid in the interdental space. At the same time, due to the acute angle, the lower part will not block the movement of the brush body 11, so the use is very convenient.

[0011] The built-in interdental brush 101 comprises a brush body 11 and a delivery device 12. The brush body 11 is movably built in the bend 12-1 at the front end of the delivery device 12. The end face 12-11 is located at the outlet end of the bend 12-1. The working part 11-1 of the brush body 11 can be stretched out of or retracted into the bend 12-1 under the action of an external force. In use, the brush body 11 is first retracted into the bend 12-1 at the front end of the delivery device 12, the outlet of the bend 12-1 at the front end of the delivery device 12 is pressed against the interdental space that needs to be cleaned, and the brush body 11 is pushed, so that the working part 11-1 of the brush body 11 is stretched out of the bend 12-1 and enters the interdental space, which well solves the problem that the existing built-in interdental brush is difficult to align with the interdental space and is easy to injure the gum tissue.

[0012] The brush body 11 is made of an elastic material. The elastic material is selected from an elastic polymer material or an elastic metal material. The brush body 11 can be installed in the bend 12-1 after elastic deformation, and the brush body 11 can restore the original shape after being stretched out of the bend 12-1.

[0013] The brush body 11 can be straight, and can restore or substantially restore straightness after being extended from the elbow pipe 12-1. The brush body 11 can also be an arc-shaped brush body, and has an arc shape close to the external contour of the teeth after being extended from the elbow pipe 12-1.

[0014] In practical applications, the fiber or protrusion 11-11 of the working part 11-1 of the brush body 11 can be made of an elastic polymer material, and the connecting body 11-2 of the brush body 11 can be made of an elastic metal material. The connecting body 11-2 made of the elastic metal material and the fiber or protrusion 11-11 made of the elastic polymer material are integrated by an injection molding process in a metal mold to form the brush body 11. The built-in interdental brush with the composite structure ensures the softness of the working part 11-1 of the brush body 11, maintains the elasticity and moderate rigidity of the brush body 11 as a whole, and has good force transmission.

[0015] The brush body 11 can also be made of a moldable material, and can be pre-shaped according to the external contour of the teeth. The brush body 11 can substantially maintain the preset shape after being extended from the elbow pipe 12-1.

[0016] The telescopic mechanism 200 is a sliding telescopic mechanism or a rotating telescopic mechanism. The telescopic mechanism 200 can be a sliding telescopic mechanism, and the built-in interdental brush 101 is pushed out or retracted from the handle 300 by a sliding movement. The telescopic mechanism 200 can also be a rotating telescopic mechanism, such as a threaded screw movement, and the built-in interdental brush 101 is pushed out or retracted from the handle 300 by rotating the telescopic mechanism 200. Of course, those skilled in the art can also design different structures of the telescopic mechanism 200 according to needs, which do not deviate from the protection scope of the present application.

[0017] The telescopic mechanism 200 is a sliding telescopic mechanism 201; the sliding telescopic mechanism 201 comprises a sliding groove 21 and a sliding block 22; pushing the sliding block 22 to reciprocate along the sliding groove 21 can extend or retract the built-in interdental brush 101 from the handle 300. The sliding groove 21 can be arranged on the shell 32 of the handle 300, and the sliding block 22 is connected with the connecting part 13 of the built-in interdental brush 101 through a connecting end 22-1, so as to connect the built-in interdental brush 101 and the telescopic mechanism 200 into an integral whole. In use, the sliding block 22 is pushed up and down, and the sliding block 22 moves up and down along the sliding groove 21; when the sliding block 22 moves upward, the sliding block 22 drives the built-in interdental brush 101 to move upward, and the built-in interdental brush 101 extends from the handle 300, so that the interdental space can be cleaned. When the cleaning is completed, the sliding block 22 is only pushed downward, so that the sliding block 22 drives the built-in interdental brush 101 to move downward, and the built-in interdental brush 101 is retracted into the receiving space 31 of the handle 300.

[0018] The built-in interdental brush 101 is detachably mounted on the telescopic mechanism 200. The built-in interdental brush 101 is detachably mounted on the telescopic mechanism 200, so that the built-in interdental brush 101 can be replaced when needed, and the use process is more clean and sanitary.

[0019] The built-in interdental brush 101 is connected to the telescopic mechanism 200 by means of concave-convex clamping connection, threaded connection or interference fit connection. The applicant only lists the above several detachable connection modes, and those skilled in the art can design different detachable connection modes according to needs, which do not deviate from the protection scope of the present application.

[0020] The built-in interdental brush 101 is detachably mounted on the telescopic mechanism 200. The built-in interdental brush 101 can also be detachably mounted on the telescopic mechanism 200, which can more effectively prevent the built-in interdental brush 101 from falling off during use, especially when the built-in interdental brush 101 is an interdental brush 101, the delivery device 12 can be fixedly mounted on the telescopic mechanism 200 through the connecting part 13, and only the brush body 11 needs to be replaced after cleaning, which not only meets the requirement of regularly replacing tools and convenient cleaning, but also prevents the built-in interdental brush 101 from falling off from the telescopic mechanism 200 during cleaning, and the use process is safer.

[0021] The built-in interdental brush 101 is connected to the telescopic mechanism 200 by means of bonding or integral manufacturing. The built-in interdental brush 101 can be fixedly connected to the telescopic mechanism 200 by means of bonding, integral manufacturing, ultrasonic welding and the like.

[0022] When assembling, first remove the bottom cover 33 of the handle 300, connect the built-in interdental brush 101 and the telescopic mechanism 200 together, place the built-in interdental brush 101 and the telescopic mechanism 200 together into the object receiving space 31 from the bottom of the handle 300, install the slider 22 of the telescopic mechanism 200 in the sliding groove 21, and then install the bottom cover 33.

[0023] When using, push the slider 22 upward to push the built-in interdental brush 101 out of the handle 300. If the built-in interdental brush 101 is an interdental brush 101, after pushing the built-in interdental brush 101 out of the handle 300, first retract the brush body 11 into the bend pipe 12-1 at the front end of the delivery device 12, press the end surface 12-11 of the bend pipe 12-1 at the front end of the delivery device 12 against the tooth gap to be cleaned, and push the brush body 11, so that the working part 11-1 of the brush body 11 extends out of the bend pipe 12-1 and enters the tooth gap, thereby cleaning the tooth gap.

[0024] The telescopic built-in interdental brush of the present application comprises a built-in interdental brush 101, a telescopic mechanism 200 and a handle 300. The built-in interdental brush 101 and the telescopic mechanism 200 are connected together, and driving the telescopic mechanism 200 can drive the built-in interdental brush 101 to extend out of the handle 300. The end surface 12-11 of the delivery device 12 of the built-in interdental brush 101 is a bevel surface, which forms an angle β with the axial direction of the telescopic built-in interdental brush 900, and the angle β is less than 90°. An acute angle taper is formed on the upper part of the end surface 12-11, and the position of the taper tip is just embedded in the tooth gap. Pushing the brush body 11, the working part 11-1 of the brush body 11 extends out of the bend pipe 12-1 and enters the tooth gap, which solves the problem that the existing built-in interdental brush is difficult to align with the tooth gap and is easy to injure the gum tissue. Moreover, the taper structure is more difficult to slip off, and the positioning is more convenient and stable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective structural schematic view of the built-in interdental brush of the telescopic built-in interdental brush of the present application extending out of the handle.

[0026] Figure 1-1 is Figure 1 front view.

[0027] Figure 1-2 is Figure 1 sectional view.

[0028] Figure 2 Figure 1 perspective structural schematic view of the brush body of the telescopic built-in interdental brush extending out of the bend pipe of the delivery device.

[0029] Figure 2-1 is a sectional view of Figure 2

[0030] Figure 3 is a perspective view of the retractable built-in interdental brush handle of the retractable built-in interdental brush of the present application.

[0031] Figure 3-1 is a front view of Figure 3

[0032] Figure 3-2 is a sectional view of Figure 3

[0033] Figure 4 is an exploded view of Figure 1

[0034] Figure 5 is an exploded view of the retractable built-in interdental brush of the present application of the arc-shaped built-in interdental brush.

[0035] In the above figures:

[0036] 101 is the built-in interdental brush, 200 is the telescopic mechanism, 201 is the sliding telescopic mechanism, and 300 is the handle.

[0037] 11 is the brush body, 12 is the delivery device, 13 is the connecting part; 11-1 is the working part, 11-2 is the connecting body, 12-1 is the elbow pipe; 11-11 is the fiber or protrusion, and 12-11 is the end face.

[0038] 21 is the sliding groove, 22 is the sliding block, 21-1 is the locking block, 21-2 is the limiting block, and 22-1 is the connecting end.

[0039] 31 is the receiving space, 32 is the shell, and 33 is the bottom cover. DETAILED DESCRIPTION

[0040] Embodiment: The retractable built-in interdental brush of the present application

[0041] With reference to Figures 1 to 4 , the retractable built-in interdental brush of the present application comprises a built-in interdental brush 101, a telescopic mechanism 200, and a handle 300.

[0042] The built-in interdental brush 101 comprises a brush body 11 and a delivery device 12, and the brush body 11 is movably built-in in the elbow pipe 12-1 at the front end of the delivery device 12. The working part 11-1 of the brush body 11 can be extended or retracted from the elbow pipe 12-1 under the action of external force.

[0043] With reference to Figure 1 and Figure 1-2 ​​​​The end surface 12-11 of the delivery device 12 of the built-in interdental brush 101 is beveled, and forms an angle β with the axis of the retractable built-in interdental brush 900.

[0044] In this embodiment, the angle β is less than 90°.

[0045] Generally, the angle β is selected from the range of 5° to 50°. The angle β is an acute angle less than 90°, and more preferably an acute angle between 5° and 50°. In this way, an acute taper can be formed on the upper part of the end surface 12-11, and the tip of the taper can be embedded in the interdental space. Since the taper is an acute angle, the lower part of the taper will not block the movement of the brush body 11, and the use of the brush is very convenient.

[0046] With reference to Figure 2 and Figure 4 In this embodiment, the brush body 11 is linear and is made of an elastic material. The brush body 11 can be installed in the elbow 12-1 after elastic deformation, and can return to or substantially return to a linear shape after the brush body 11 is extended from the elbow 12-1.

[0047] The elastic material can be selected from an elastic polymer material or an elastic metal material. For example, the fiber or protrusion 11-11 of the working part 11-1 of the brush body 11 can be made of an elastic polymer material, and the connecting body 11-2 of the brush body 11 can be made of an elastic metal material. The connecting body 11-2 made of an elastic metal material and the fiber or protrusion 11-11 made of an elastic polymer material can be combined into a whole by injection molding in a metal mold to form the brush body 11. In this way, the built-in interdental brush with a composite structure can ensure the softness of the working part 11-1 of the brush body 11, and maintain the elasticity and moderate rigidity of the whole brush body 11, and has good force transmission.

[0048] With reference to Figure 5 The brush body 11 can also be arc-shaped. When the brush body 11 is extended from the elbow 12-1, the brush body 11 is arc-shaped, and the arc shape can be designed to be close to the external contour of the teeth.

[0049] The brush body 11 can also be made of a shapeable material. For example, the connecting body 11-2 of the brush body 11 can be made of a thin steel wire, and can be shaped to a certain extent according to the external contour of the teeth. When the working part 11-1 of the brush body 11 is extended from the elbow 12-1, the connecting body 11-2 can substantially maintain the preset shape.

[0050] Of course, those skilled in the art can also design different types of brush bodies according to needs, and the applicant will not list all the examples here, but they are all within the protection scope of the present application.

[0051] In this embodiment, the telescopic mechanism 200 is a sliding telescopic mechanism 201. The sliding telescopic mechanism 201 comprises a sliding groove 21 and a sliding block 22. The inner interdental brush 101 can be extended or retracted from the handle 300 by pushing the sliding block 22 along the sliding groove 21.

[0052] The sliding groove 21 is arranged on the shell 32 of the handle 300, and the sliding block 22 is connected to the connecting portion 13 of the inner interdental brush 101 through a connecting end 22-1, so that the inner interdental brush 101 and the telescopic mechanism 200 are connected as a whole.

[0053] In order to fix the inner interdental brush 101 outside the handle 300 after the inner interdental brush 101 is extended from the handle 300, an upper end of the sliding groove 21 is provided with a locking block 21-1. In order to fix the inner interdental brush 101 in the handle 300 after the inner interdental brush 101 is retracted into the handle 300, a lower end of the sliding groove is provided with a limiting block 21-2. When the sliding block 22 is pushed upward, the inner interdental brush 101 is fixed outside the handle 300 when the sliding block 22 passes the locking block 21-1, so that the inner interdental brush 101 cannot slide into the handle 300 during cleaning. When the sliding block 22 is pushed downward, the inner interdental brush 101 is fixed in the storage space 31 of the handle 300 when the sliding block 22 passes the limiting block 21-2, so that the inner interdental brush 101 cannot slide out of the handle 300 during carrying.

[0054] The telescopic mechanism 200 can also be a rotating telescopic mechanism, such as a threaded screw. The inner interdental brush 101 can be extended or retracted from the handle 300 by rotating the telescopic mechanism 200. Of course, those skilled in the art can also design different structures of the telescopic mechanism 200 according to needs, which do not deviate from the protection scope of the present application.

[0055] In this embodiment, the delivery device 12 of the inner interdental brush 101 is fixedly installed on the telescopic mechanism 200 by adhesion through the connecting portion 13. After cleaning, only the brush body 11 needs to be replaced, which meets the requirements of regular replacement of tools and convenient cleaning, and prevents the inner interdental brush 101 from falling off the telescopic mechanism 200 during cleaning, so that the use is very safe.

[0056] The inner interdental brush 101 can also be fixedly connected to the telescopic mechanism 200 by various methods such as integral manufacturing and ultrasonic welding, which are not listed here, but do not deviate from the protection scope of the present application.

[0057] The built-in interdental brush 101 can be detachably mounted on the telescopic mechanism 200 by concave-convex clamping, threaded connection, interference fit connection or the like, so that the built-in interdental brush 101 can be easily disassembled, cleaned or replaced. The applicant does not specifically illustrate this, but it is not out of the protection scope of the present application.

[0058] During assembly, first, the bottom cover 33 of the handle 300 is removed, the built-in interdental brush 101 and the telescopic mechanism 200 are connected together, the built-in interdental brush 101 and the telescopic mechanism 200 are placed into the receiving space 31 of the handle 300 together, the slider 22 of the telescopic mechanism 200 is installed in the sliding groove 21, and then the bottom cover 33 is installed.

[0059] During use, the slider 22 is pushed upward, and the built-in interdental brush 101 is pushed out of the handle 300. Then, the brush body 11 is first retracted into the elbow pipe 12-1 at the front end of the delivery device 12, the tapered tip on the upper part of the end surface 12-11 of the elbow pipe 12-1 at the front end of the delivery device 12 is abutted against the tooth gap to be cleaned, and then the brush body 11 is pushed, the working part 11-1 of the brush body 11 is extended from the elbow pipe 12-1 and enters the tooth gap, so that the tooth gap is cleaned. In this way, the problem that the existing built-in interdental brush is difficult to align with the tooth gap and is easy to injure the gum tissue can be well solved, and the tapered tip can be well embedded in the tooth gap and is not easy to slip off, so that the positioning is very convenient and stable.

[0060] After use, the slider 22 is only pushed downward, so that the slider 22 drives the built-in interdental brush 101 to move downward, and the built-in interdental brush 101 is retracted into the receiving space 31 of the handle 300. The handle 300 can form a small instrument box, which is very convenient for carrying and storing the built-in interdental brush 101.

[0061] The telescopic built-in interdental brush has the advantages of convenient use, safety, easy storage and carrying due to the built-in interdental brush.

[0062] Especially, the slope design of the end surface 12-11 of the delivery device 12 forms a taper during use, the tapered tip can be well embedded in the tooth gap, the tooth gap can be better positioned, and the tapered tip is not easy to slip off when the brush body is pushed and pulled, so that the positioning is more convenient and stable.

[0063] It should be noted that the constructions disclosed and described herein are susceptible to, without departing from the spirit of the application, adaptations and changes by those skilled in the art. Although preferred embodiments of the application have been disclosed and described in detail herein, those skilled in the art will know, without departing from the spirit of the application, that many modifications, substitutions and alterations are possible. It is intended that the scope of the application be limited only by the broadest interpretation of the appended claims to which the inventors are legally entitled.

Claims

1. A retractable interdental brush characterized in that: The retractable built-in interdental brush (900) comprises a built-in interdental brush (101), a retracting mechanism (200) and a handle (300); the handle (300) comprises a storage space (31), the built-in interdental brush (101) can be extended out of or retracted into the storage space (31) of the handle (300) through the retracting mechanism (200); the built-in interdental brush (101) comprises a brush body (11) and a delivery device (12), the brush body (11) is movably built in a bend pipe (12-1) at the front end of the delivery device (12); an end face (12-11) is located at the outlet end of the bend pipe (12-1), the end face (12-11) is an inclined plane, forms a β angle with the axial direction of the retractable built-in interdental brush (900), the β angle is less than 90°, the β angle ranges from 5° to 50°, and an acute angle taper is formed at the upper part of the end face (12-11), the position of the taper tip can be embedded in the dental crevice; the distance between the farthest tip of the end face (12-11) and the axis of the delivery device (12) is greater than the distance between the nearest end of the end face (12-11) and the axis of the delivery device (12), after the farthest tip of the end face (12-11) is pressed against the dental crevice, the brush body (11) is pushed into the dental crevice, and when the brush body (11) is pushed and pulled, it is less likely to slip off, the positioning is more convenient and stable, and the lower part does not block the movement of the brush body (11) due to the acute angle.

2. The retractable type of interdental brush according to claim 1, wherein: The brush body (11) is made of an elastic material; the elastic material is selected from an elastic polymer material or an elastic metal material.

3. The retractable type of interdental brush according to claim 1, wherein: The retracting mechanism (200) is a sliding type retracting mechanism or a rotating type retracting mechanism.

4. The retractable type of interdental brush according to claim 3, wherein: The retracting mechanism (200) is a sliding type retracting mechanism (201); the sliding type retracting mechanism (201) comprises a sliding groove (21) and a sliding block (22); the built-in interdental brush (101) can be extended out of or retracted into the handle (300) by reciprocating the sliding block (22) along the sliding groove (21).

5. The retractable type of interdental brush according to claim 1, wherein: The built-in interdental brush (101) is detachably installed on the retracting mechanism (200).

6. The retractable type of interdental brush according to claim 5, wherein: The built-in interdental brush (101) is connected to the retracting mechanism (200) through a concave-convex clamping connection mode, a threaded connection mode or an interference fit connection mode.

7. The retractable type of interdental brush according to claim 1, wherein: The built-in interdental brush (101) is non-detachably installed on the retracting mechanism (200).

8. The retractable type of interdental brush according to claim 7, wherein: The built-in interdental brush (101) is connected to the retracting mechanism (200) through bonding or integral manufacturing.

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