Three-head toothbrush convenient to process
Through integrated injection molding process and soft glue fixing technology, the problem of complex manufacturing of three-head toothbrushes and easy to fall off the brush handle is solved, achieving efficient and stable bristle plugging and use comfort.
Patent Information
- Application Number
- CN202421104211.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing three-head toothbrushes have complex manufacturing processes, high manufacturing costs, poor quality of bristle insertion, and easy to fall off the brush handle.
The main parts are manufactured using an integrated injection molding process, and the soft glue is fixed and molded after the bristles are inserted. The brush handle is tightened through the sheet-shaped connection part and the soft glue part to ensure that the bristles are evenly inserted and firmly connected.
It improves the yield and comfort of the bristles, reduces the error rate, simplifies the processing process, and improves the processing efficiency and the strength of the bristles.
Smart Images
Figure CN222264681U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of toothbrush manufacturing and is a toothbrush with three-head bristles, in particular to a three-head toothbrush which is convenient to process. Background Art
[0002] As people's living standards continue to improve, the existing toothbrushes are increasingly pursuing refined bristles, from a single brush head with a combination of multiple bristles to a toothbrush with three-head bristles. However, since a three-head toothbrush has bristles on three different planes, its manufacturing process is more complicated and has the defect of high manufacturing cost. At the same time, the three-sided bristles are plugged in at an angle and the bristles are poorly plugged in, and the left and right brush handles are easy to fall off. Summary of the invention
[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a three-head toothbrush that can overcome the above defects and is easy to process.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a three-head toothbrush that is easy to process, the key is that the three-head toothbrush that is easy to process includes a main body, bristles, and a soft rubber part, the main body includes a left brush handle, a right brush handle, a middle brush handle, and a handle part obtained by an integrated injection molding process, the outer edge parts of the roots of the left brush handle and the right brush handle are respectively connected to the middle brush handle through a sheet-like connecting part, the heads of the left brush handle, the right brush handle, and the middle brush handle are all plugged with bristles, and the roots of the left brush handle, the right brush handle, and the middle brush handle are provided with a wrapped and fixed soft rubber part, and the soft rubber part wraps and tightens the roots of the left brush handle, the right brush handle, and the middle brush handle.
[0005] The thickness of the sheet-shaped connecting portion between the left brush handle and the middle brush handle and between the right brush handle and the middle brush handle is 0.2-0.8 mm.
[0006] The height of the sheet-shaped connecting portion between the left brush handle and the middle brush handle and between the right brush handle and the middle brush handle is 2 mm to 30 mm.
[0007] The intervals between the left brush handle and the middle brush handle, and between the right brush handle and the middle brush handle at the root are 0.5-1 mm.
[0008] The wrapping length of the soft rubber part is 10 to 30 mm.
[0009] The end of the handle of the three-head toothbrush is provided with a hanging hole and a soft rubber wrapping the tail.
[0010] The head of the middle brush handle is a smooth rectangle, and the connection between the left brush handle, the right brush handle and the middle brush handle is in an arc shape that fits the head of the middle brush handle.
[0011] The utility model discloses a three-head toothbrush which is easy to process. The main structure is formed by one-time injection molding, and secondary processing is performed after the bristles are plugged in. The three brush handles are fixed and molded with soft glue. The three brush handles are firmly connected and have good strength, which reduces the error rate of installation. The bristles are all forward plugged in, and the plug-in yield rate is high. The utility model has the advantages of convenient processing, high processing efficiency and high comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the exploded structure of the utility model.
[0013] Figure 2 It is a schematic diagram of the combined structure of the utility model. DETAILED DESCRIPTION
[0014] like Figure 1 to Figure 2 As shown, a three-head toothbrush that is easy to process includes a main body 1, bristles 2, and a soft rubber part 3. The main body includes a left brush handle 11, a right brush handle 12, a middle brush handle 13, and a handle part 14 obtained by an integrated injection molding process. The outer edge of the left and right brush handles at the root is connected to the middle brush handle through a sheet-like connecting part 10, and the heads of the left, right, and middle brush handles are all plugged with bristles 3. The left, right, and middle brush handles are provided with a wrapped and fixed soft rubber part 2 at the root, and the soft rubber part wraps and tightens the roots of the left, right, and middle brush handles. The main body is an integrated structure, and the process of plugging in bristles is carried out after the injection molding process. Since the plug-in bristles of the three brush handles have the same direction, they can be quickly plugged in at one time. The bristles can be one or more. Or a combination of diamond bristle bundles and circular bristle bundles is carried out. The left brush handle and the right brush handle are symmetrical in shape, and the left brush handle and the right brush handle are respectively arranged on the left and right sides of the middle brush handle. The sheet-shaped connecting parts between the left brush handle and the middle brush handle, and between the right brush handle and the middle brush handle are arranged on the outside of the brush handle, and a V-shaped gap is provided between the left brush handle and the middle brush handle, and between the right brush handle and the middle brush handle, so that the left brush handle and the right brush handle can be bent to a certain angle respectively after the bristles are inserted, so that the three brush handles are brought together, and then the subsequent encapsulation process is carried out to form a structure with three groups of bristles with three directional surfaces. A gap is provided between the brush head area of the left brush handle and the middle brush handle, and between the right brush handle and the middle brush handle, and the gap is 1 to 2 mm. The remaining gap is for the left brush handle and the right brush handle to be elastically deformed to maintain the elasticity of the toothbrush.
[0015] Preferably, the thickness of the sheet-shaped connecting portion 10 between the left brush handle and the middle brush handle, and between the right brush handle and the middle brush handle is 0.2-0.8 mm. A sheet-shaped connection with a relatively low thickness is convenient for bending and twisting. A thickness of 0.3 mm is preferred.
[0016] The height of the sheet-shaped connecting portion 10 between the left brush handle and the middle brush handle, and between the right brush handle and the middle brush handle is 2 mm to 30 mm. The preferred connection height is 20 mm, which can ensure that the left brush handle and the right brush handle have a certain connection strength to avoid separation from the brush handle body during the production process.
[0017] The intervals between the left and middle handles, and between the right and middle handles at their roots are 0.5-1 mm. Setting the body width of the sheet-shaped connecting portion to an appropriate value can make the bending process of the left and right handles easy while maintaining the closing precision after bending. The preferred width is 0.8 mm.
[0018] The wrapping length of the soft rubber part is 10 to 30 mm. The optimized length of the soft rubber part can ensure that the left brush handle, the middle brush handle and the right brush handle have good precision after closing. The preferred length is 25 mm. In order to make the soft rubber part have good aesthetics. The soft rubber part is a multi-section drum-shaped structure.
[0019] The end of the handle of the three-head toothbrush is provided with a hanging hole and a soft rubber wrap. The hook at the end of the handle can be conveniently hung up to achieve rapid air drying. The soft rubber can make the palm of the user feel more comfortable when brushing teeth.
[0020] The head of the middle brush handle is a rounded rectangle, and the connection of the left brush handle, the right brush handle and the middle brush handle is an arc shape adapted to the head of the middle brush handle. The head of the middle brush handle is a rounded rectangle, which allows the brush head to enter the deep part of the oral cavity and improves the efficiency of brushing teeth.
[0021] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A three-head toothbrush that is easy to process, characterized in that The three-headed toothbrush that is easy to process includes a main body, bristles, and a soft rubber part. The main body includes a left brush handle, a right brush handle, a middle brush handle, and a handle part obtained by an integrated injection molding process. The outer edge parts of the roots of the left brush handle and the right brush handle are connected to the middle brush handle through a sheet-like connecting part respectively. The heads of the left brush handle, the right brush handle, and the middle brush handle are all plugged with bristles. The left brush handle, the right brush handle, and the middle brush handle are provided with a wrapped and fixed soft rubber part at the root, and the soft rubber part wraps and tightens the roots of the left brush handle, the right brush handle, and the middle brush handle.
2. The three-head toothbrush that is easy to process according to claim 1, characterized in that The thickness of the sheet-shaped connecting portion between the left brush handle and the middle brush handle and between the right brush handle and the middle brush handle is 0.2-0.8 mm.
3. The three-head toothbrush that is easy to process according to claim 2, characterized in that The height of the sheet-shaped connecting portion between the left brush handle and the middle brush handle and between the right brush handle and the middle brush handle is 2 mm to 30 mm.
4. The three-head toothbrush that is easy to process according to claim 3, characterized in that The intervals between the left brush handle and the middle brush handle, and between the right brush handle and the middle brush handle at the root are 0.5-1 mm.
5. The three-head toothbrush that is easy to process according to claim 4, characterized in that The wrapping length of the soft rubber part is 10 to 30 mm.
6. The three-head toothbrush that is easy to process according to claim 5, characterized in that The end of the handle of the three-head toothbrush is provided with a hanging hole and a soft rubber wrapping the tail.
7. The three-head toothbrush that is easy to process according to claim 6, characterized in that The head of the middle brush handle is a smooth rectangle, and the connection between the left brush handle, the right brush handle and the middle brush handle is in an arc shape that fits the head of the middle brush handle.