Toothbrush bristle bending strength testing equipment

By designing a toothbrush bristle bending strength testing device, and using a pressing cylinder and fixing components to conduct a top pressure test on the bristles, the problem of toothbrush bristle bending is solved, ensuring the durability of the toothbrush.

CN224216471UActive Publication Date: 2026-05-08ZHONGSHAN XINHUAMEI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN XINHUAMEI IND CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing toothbrush bristles are prone to bending after long-term use, affecting the lifespan of the toothbrush, and there is a lack of effective equipment for testing bending strength.

Method used

A toothbrush bristle bending strength testing device was designed, including a frame, a pressing mechanism, a mounting mechanism, and a moving mechanism. The pressing head is driven by a pressing cylinder to perform a pressing test on the bristles. Combined with a fixing component and an adjusting component to simulate the brushing environment, the bending strength of the bristles is tested.

Benefits of technology

It enables effective bending strength testing of toothbrush bristles, simulates actual usage conditions, evaluates bristle durability, and ensures toothbrush quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses equipment for testing the bending strength of toothbrush bristles. The equipment comprises a rack, a pressing mechanism arranged on the rack, and a mounting mechanism arranged on the rack, the downward pressing mechanism comprises a downward pressing air cylinder, a downward pressing head arranged at the output end of the downward pressing air cylinder and an adjusting assembly used for adjusting the distance between the downward pressing head and the mounting mechanism. The mounting mechanism comprises a base, a positioning groove and a fixing assembly; the positioning groove is formed in the base and is used for placing a toothbrush; the fixing assembly is arranged on the base and is used for pressing the toothbrush on the base; when the downward pressing air cylinder works, the downward pressing head is driven to be pressed downwards to bristles of a toothbrush in a reciprocating mode. The utility model provides the equipment for testing the bending strength of the toothbrush bristles, and the bending strength of the bristles is tested by continuously jacking and pressing the bristles.
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Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a toothbrush bristle bending strength testing device. Background Technology

[0002] Modern toothbrushes all have bristles, which bend to varying degrees after prolonged use, affecting the toothbrush's lifespan. Therefore, testing the bristles' resistance to bending is particularly important during toothbrush manufacturing. Utility Model Content

[0003] To address the aforementioned issues, this technical solution provides a toothbrush bristle bending strength testing device.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A toothbrush bristle bending strength testing device includes a frame, a pressing mechanism disposed on the frame, and a mounting mechanism disposed on the frame;

[0006] The pressing mechanism includes a pressing cylinder, a pressing head disposed on the output end of the pressing cylinder, and an adjusting component for adjusting the distance between the pressing head and the mounting mechanism;

[0007] The mounting mechanism includes a base, a positioning groove disposed on the base for placing the toothbrush, and a fixing component disposed on the base for pressing the toothbrush onto the base.

[0008] When the downward pressure cylinder is working, it drives the downward pressure head to reciprocate downwards onto the bristles of the toothbrush.

[0009] As described above, a toothbrush bristle bending strength testing device includes a base comprising a top surface and a cavity recessed from the top surface. A positioning groove is disposed on the top surface and communicates with the cavity. A fixing component presses the toothbrush so that the toothbrush head is located on the positioning groove or suspended in the cavity.

[0010] As described above, a toothbrush bristle bending strength testing device includes a fixing component comprising a connector disposed on the base, a pressure plate covering the positioning groove, and a compression spring disposed between the pressure plate and the connector, wherein the connector passes through the pressure plate to allow the pressure plate to slide relative to the connector.

[0011] In the toothbrush bristle bending strength testing device described above, the positioning groove penetrates the top surface, and the positioning groove is at least partially exposed outside the pressure plate.

[0012] As described above, a toothbrush bristle bending strength testing device is provided with a moving mechanism between the frame and the mounting mechanism. The moving mechanism allows the base to move the toothbrush so that the bristles correspond to the downward pressure head.

[0013] The toothbrush bristle bending strength testing device described above includes a sliding rail mounted on the frame and a slider cooperating with the sliding rail, with the base mounted on the slider.

[0014] The toothbrush bristle bending strength testing device described above includes an adjustment seat, a guide post hinged to the adjustment seat, and a sleeve post threadedly connected to the guide post on the frame.

[0015] As described above, in a toothbrush bristle bending strength testing device, the positioning groove includes a semi-circular bottom and an arc-shaped surface extending from both sides of the bottom to the top surface.

[0016] As described above, in a toothbrush bristle bending strength testing device, the connector is threadedly connected to the base to adjust the insertion depth of the connector, thereby adjusting the pressure of the compression spring on the pressure plate.

[0017] As described above, in a toothbrush bristle bending strength testing device, the pressure plate is provided with a silicone pressure pad facing the positioning groove.

[0018] The beneficial effects of this application are:

[0019] This invention provides a toothbrush bristle bending strength testing device. The toothbrush is placed in a positioning groove and fixed with a fixing component so that the bristles face upwards. The height of the pressing head is then adjusted by an adjusting component, so that when the pressing cylinder operates, the pressing head presses against the bristles. By continuously pressing the bristles, the bending strength of the bristles is tested. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0021] Figure 1 This is a schematic diagram of the structure of this application. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] A toothbrush bristle bending strength testing device includes a frame 1, a pressing mechanism 2 disposed on the frame 1, and a mounting mechanism 3 disposed on the frame 1.

[0024] The pressing mechanism 2 includes a pressing cylinder 21, a pressing head 22 disposed on the output end of the pressing cylinder 21, and an adjusting component 23 for adjusting the distance between the pressing head 22 and the mounting mechanism 3.

[0025] The mounting mechanism 3 includes a base 31, a positioning groove 32 disposed on the base 31 for placing the toothbrush, and a fixing component 33 disposed on the base 31 for pressing the toothbrush onto the base 31.

[0026] When the pressing cylinder 21 is working, it drives the pressing head 22 to press down repeatedly onto the bristles of the toothbrush.

[0027] This invention provides a toothbrush bristle bending strength testing device. The toothbrush is placed in a positioning groove and fixed with a fixing component so that the bristles face upwards. The height of the pressing head is then adjusted by an adjusting component, so that when the pressing cylinder operates, the pressing head presses against the bristles. By continuously pressing the bristles, the bending strength of the bristles is tested.

[0028] Furthermore, as a preferred embodiment of this solution and not a limitation, the base 31 includes a top surface 311 and a cavity 312 recessed from the top surface 311. The positioning groove 32 is disposed on the top surface 311 and communicates with the cavity 312. The fixing component 33 presses the toothbrush so that the brush head is located on the positioning groove 32, or the brush head is suspended in the cavity 312. When the brush head is suspended, the bristles will bend under force, simulating the environment of brushing teeth with a handheld toothbrush, and the bending of the bristles can be tested. When the brush head is on the positioning groove, the bristles can be tested directly.

[0029] Furthermore, as a preferred embodiment of this solution and not a limitation, the fixing component 33 includes a connector 331 disposed on the base 31, a pressure plate 332 covering the positioning groove 32, and a compression spring 333 disposed between the pressure plate 332 and the connector 331. The connector 331 passes through the pressure plate 332, allowing the pressure plate 332 to slide relative to the connector 331. This allows the toothbrush to be fixed in place. Because the pressure applied by the lower pressure head to the bristles is not very high in a simulated brushing situation, the toothbrush can be fixed under the action of the compression spring.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation, the positioning groove 32 penetrates the top surface 311, and the positioning groove 32 is at least partially exposed outside the pressure plate 332. This facilitates direct testing of the brush bristles.

[0031] Furthermore, as a preferred embodiment of this solution and not a limitation, a moving mechanism 4 is provided between the frame 1 and the mounting mechanism 3. The moving mechanism 4 allows the base 31 to move the toothbrush so that the bristles align with the lower pressure head 22. This allows for the adaptation to toothbrushes of different models and lengths.

[0032] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the moving mechanism 4 includes a slide rail 41 disposed on the frame 1 and a slider 42 cooperating with the slide rail 41, and the base 31 is disposed on the slider 42.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the adjustment assembly 23 includes an adjustment seat 231, a guide post 232 hinged to the adjustment seat 231, and a sleeve post 233 threadedly connected to the guide post 232 on the frame 1. Rotating the guide post allows the adjustment seat to rise or fall. A pressure cylinder is mounted on the adjustment seat.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, the positioning groove 32 includes a semi-circular groove bottom 321 and arc-shaped surfaces 322 extending from both sides of the groove bottom 321 to the top surface 311. This is suitable for toothbrush handles of different shapes.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the connector 331 is threadedly connected to the base 31 to adjust the insertion depth of the connector 331, thereby adjusting the pressure of the compression spring 333 on the pressure plate 332.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, the pressure plate 332 is provided with a silicone pressure pad 5 facing the positioning groove 32, which better fits the toothbrush handle.

[0037] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A toothbrush bristle bending strength testing device, characterized in that: It includes a frame (1), a pressing mechanism (2) disposed on the frame (1), and a mounting mechanism (3) disposed on the frame (1); The pressing mechanism (2) includes a pressing cylinder (21), a pressing head (22) disposed on the output end of the pressing cylinder (21), and an adjusting component (23) for adjusting the distance between the pressing head (22) and the mounting mechanism (3); The mounting mechanism (3) includes a base (31), a positioning groove (32) disposed on the base (31) for placing the toothbrush, and a fixing component (33) disposed on the base (31) for pressing the toothbrush onto the base (31). When the pressing cylinder (21) is working, it drives the pressing head (22) to press down repeatedly onto the bristles of the toothbrush.

2. The toothbrush bristle bending strength testing device according to claim 1, characterized in that: The base (31) includes a top surface (311) and a cavity (312) recessed from the top surface (311). The positioning groove (32) is provided on the top surface (311) and communicates with the cavity (312). The fixing component (33) presses the toothbrush so that the toothbrush head is located on the positioning groove (32) or so that the toothbrush head is suspended in the cavity (312).

3. The toothbrush bristle bending strength testing device according to claim 2, characterized in that: The fixing component (33) includes a connector (331) disposed on the base (31), a pressure plate (332) covering the positioning groove (32), and a compression spring (333) disposed between the pressure plate (332) and the connector (331). The connector (331) passes through the pressure plate (332) so that the pressure plate (332) can slide relative to the connector (331).

4. The toothbrush bristle bending strength testing device according to claim 3, characterized in that: The positioning groove (32) penetrates the top surface (311), and the positioning groove (32) is at least partially exposed outside the pressure plate (332).

5. The toothbrush bristle bending strength testing device according to claim 1, characterized in that: A moving mechanism (4) is provided between the frame (1) and the mounting mechanism (3), and the moving mechanism (4) allows the base (31) to move the toothbrush so that the bristles correspond to the lower pressure head (22).

6. The toothbrush bristle bending strength testing device according to claim 5, characterized in that: The moving mechanism (4) includes a slide rail (41) disposed on the frame (1) and a slider (42) cooperating with the slide rail (41), and the base (31) is disposed on the slider (42).

7. The toothbrush bristle bending strength testing device according to claim 1, characterized in that: The adjustment assembly (23) includes an adjustment seat (231), a guide post (232) hinged to the adjustment seat (231), and a sleeve post (233) threadedly connected to the guide post (232) on the frame (1).

8. The toothbrush bristle bending strength testing device according to claim 2, characterized in that: The positioning groove (32) includes a semi-circular groove bottom (321) and an arc-shaped surface (322) extending from the groove bottom (321) to the top surface (311).

9. The toothbrush bristle bending strength testing device according to claim 3, characterized in that: The connector (331) is threadedly connected to the base (31) to adjust the insertion depth of the connector (331), thereby adjusting the pressure of the pressure spring (333) on the pressure plate (332).

10. A toothbrush bristle bending strength testing device according to claim 3, characterized in that: The pressure plate (332) is provided with a silicone pressure pad (5) facing the positioning groove (32).