Pressure sensing verification device of electric toothbrush

Abstract

A pressure sensing verification device of an electric toothbrush comprises a bottom plate, a lower fixing seat is arranged on the bottom plate, a lower handle groove is formed in the lower fixing seat, a handle of the electric toothbrush is fixed through the lower handle groove, a brush head of the electric toothbrush extends to the outer side of the lower fixing seat, a support is arranged at the rear end of the bottom plate, an air cylinder is installed on the support, and the telescopic rod end of the air cylinder is connected with a positioning pressing plate. An adjustable positioning pressing block is arranged at one end of the positioning pressing plate, an upper handle groove is formed in the bottom of the positioning pressing block, a handle of the electric toothbrush is pressed and fixed through the positioning pressing block by means of the air cylinder and the positioning pressing plate, a guide groove is formed in the other end of the positioning pressing plate, the central axis of the guide groove right faces a brush head of the electric toothbrush, and a calibration weight is arranged in the guide groove. The calibration weight is positioned through the guide groove and abuts against the brush head of the electric toothbrush. According to the electric toothbrush, pressure sensing verification of the electric toothbrush can be achieved, it is guaranteed that the pressure sensing structure of the electric toothbrush can truly reflect the pressure sensing condition of a user, and the better and more real user experience of the electric toothbrush is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrush production, in particular to a pressure sensing calibration device for an electric toothbrush. Background Art

[0002] At present, the usage rate of electric toothbrushes has become more and more popular. With the development of electric toothbrush technology, electric toothbrush technology is becoming more and more intelligent. For example, in order to improve the user experience of electric toothbrushes, intelligent sensing devices are provided on electric toothbrushes, including sensing the intensity of use during rotation and load states, and then using the sensing results to feedback to the electric motor to reduce the frequency of vibration or to remind the user of the usage status through the external effect of light, so that the user can adjust the usage status according to the reminder to achieve the purpose of protecting the toothbrush motor or protecting the customer's teeth.

[0003] In the above situation, the interior of the electric toothbrush is usually program-controlled by a circuit board based on the deformation sensing of the motor shaft. Therefore, for a good electric toothbrush, it is particularly important that the pressure sensing structure that provides the motor shaft deformation can well and truly reflect the pressure of the brush head. Therefore, electric toothbrushes, especially electric toothbrushes with pressure sensing function, need to be calibrated for pressure sensing before leaving the factory to ensure that the pressure sensing structure of the electric toothbrush can truly reflect the user's pressure sensing situation. Utility Model Content

[0004] The utility model provides a pressure-sensitivity calibration device for an electric toothbrush, aiming to solve the pressure-sensitivity calibration of the electric toothbrush, thereby ensuring that the electric toothbrush provides customers with a more realistic use experience.

[0005] In view of this, the technical solution provided by the utility model is: a pressure-sensing calibration device for an electric toothbrush, comprising a bottom plate, a lower fixing seat is arranged on the bottom plate, a lower handle groove for fixing the handle of the electric toothbrush is opened on the lower fixing seat, the lower handle groove is arranged in a semicircular arc, the handle of the electric toothbrush is fixed by the lower handle groove, and the brush head of the electric toothbrush extends outside the lower fixing seat, the bottom plate is provided with a bracket at the rear end of the lower fixing seat, a cylinder is installed on the bracket, the telescopic rod of the cylinder is telescopically extended in a downward direction, the telescopic rod end of the cylinder is connected to a positioning pressure plate, and the positioning The positioning pressure plate is located above the lower fixed seat, one end of the positioning pressure plate is provided with an adjustable positioning pressure block, the bottom of the positioning pressure block is provided with an upper handle groove corresponding to the lower handle groove, the upper handle groove is set in a semicircular arc, and the positioning pressure plate presses and fixes the handle of the electric toothbrush from the top by means of the cylinder, and the other end of the positioning pressure plate is provided with a guide groove, the guide groove is set in a circular shape, and the central axis of the guide groove is directly opposite to the brush head of the electric toothbrush, and a calibration weight is provided in the guide groove, and the calibration weight is positioned by the guide groove and pressed against the brush head of the electric toothbrush.

[0006] Furthermore, the lower handle groove is horizontally arranged, and the upper handle groove is horizontally arranged. Therefore, after the handle of the electric toothbrush is fixed by the positioning, pressing and fixing of the upper handle groove and the lower handle groove, the electric toothbrush can be well kept in a horizontal state, so that the weight of the calibration weight loaded on the brush head of the electric toothbrush can act vertically and completely on the brush head.

[0007] Furthermore, the positioning block has a screw on its back, the positioning plate has a screw hole corresponding to the screw, the screw is connected to a nut through the screw hole, and a spring is also arranged around the screw between the positioning block and the positioning plate, and the positioning block is elastically connected to the bottom of the positioning plate by means of the spring. The positioning block is provided with a spring so that an effective buffer is formed in the process of pressing down and fixing the handle of the electric toothbrush, thereby achieving the purpose of protecting the electric toothbrush. At the same time, by adjusting the position of the nut screwed into the screw, the height of the positioning block is adjusted, so that the positioning block can press the handle of the electric toothbrush in the best way.

[0008] Furthermore, the positioning pressing block is made of rubber.

[0009] Furthermore, the positioning pressing block is made of silicone rubber.

[0010] Furthermore, a first hand groove is provided on the lower fixing seat, and the first hand groove and the lower handle groove are vertically staggered. The first hand groove is provided on the lower fixing seat, so as to facilitate the electric toothbrush to be taken out from the lower fixing seat.

[0011] Furthermore, a second hand groove is provided in the middle of the positioning plate. The second hand groove is located above the switch button of the electric toothbrush. During the electric toothbrush verification process, the second hand groove gives way to make it more convenient for the tester to operate the switch button of the electric toothbrush.

[0012] The utility model realizes horizontal positioning and placement of the electric toothbrush through a positioning pressure block and a lower fixing seat. After placement, the electric toothbrush enters a six-axis horizontal calibration mode by starting a switch button on the electric toothbrush. In this calibration mode, the brush head of the electric toothbrush is not loaded with calibration weights. After the six-axis horizontal calibration mode is completed, the working state and maximum load state of the electric toothbrush are respectively calibrated by loading corresponding calibration weights of different weights.

[0013] The utility model can well realize the pressure sensitivity calibration of the electric toothbrush through the calibration device, ensure that the pressure sensing structure of the electric toothbrush can truly reflect the pressure sensing situation of the user, and improve the user experience of the electric toothbrush after leaving the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the verification device in the front view direction.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of a calibration device with an electric toothbrush.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the lower fixed seat.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the positioning pressure plate.

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning block.

[0019] Among them: 1-bottom plate, 2-lower fixing seat, 201-lower handle slot, 202-first hand slot, 3-bracket, 4-cylinder, 5-positioning pressure plate, 501-screw hole, 502-guide slot, 503-second hand slot, 6-positioning pressure block, 601-upper handle slot, 602-screw, 603-spring, 604-nut, 7-calibration weight, 8-start switch, 9-electric toothbrush. DETAILED DESCRIPTION

[0020] The following is a brief description of the implementation of the present utility model in conjunction with the accompanying drawings.

[0021] A pressure sensing calibration device for an electric toothbrush, referring to 1- Figure 2, including a bottom plate 1, a lower fixing seat 2 is provided on the bottom plate 1, a lower handle groove 201 for fixing the handle of the electric toothbrush 9 is opened on the lower fixing seat 2, the lower handle groove 201 is set in a semicircular arc, the lower handle groove 201 is set horizontally, the handle of the electric toothbrush 9 is fixed through the lower handle groove 201, and the brush head of the electric toothbrush 9 extends outside the lower fixing seat 2, the bottom plate 1 is provided with a bracket 3 at the rear end of the lower fixing seat 2, a cylinder 4 is installed on the bracket 3, the telescopic rod of the cylinder 4 is telescopically directed downward, and a positioning plate 5 is connected to the telescopic rod end of the cylinder 4, the positioning plate 5 is located above the lower fixing seat 2, and an adjustable positioning block 6 is provided at one end of the positioning plate 5, referring to Figure 5 The bottom of the positioning pressing block 6 is provided with an upper handle groove 601 corresponding to the lower handle groove 201, the upper handle groove 601 is set in a semicircular arc, and the upper handle groove 601 is set horizontally. The upper handle groove 601 and the lower handle groove 201 are combined to form an arc-shaped fixing groove that matches the handle of the electric toothbrush 9. After the handle of the electric toothbrush 9 is positioned and pressed and fixed by the upper handle groove 601 and the lower handle groove 201, the electric toothbrush 9 can be well kept in a horizontal state. Through the cylinder 4, the positioning pressing plate 5 presses and fixes the handle of the electric toothbrush 9 from the top of the positioning pressing block 6. The other end of the positioning pressing plate 5 is provided with a guide groove 502, and the guide groove 502 is set in a circular shape. The central axis of the guide groove 502 is just opposite to the brush head of the electric toothbrush 9. A calibration weight 7 is arranged in the guide groove 502. The calibration weight 7 is positioned and pressed against the brush head of the electric toothbrush 9 through the guide groove 502. The weight of the calibration weight 7 loaded on the brush head of the electric toothbrush 9 can act vertically and completely on the brush head.

[0022] In this embodiment, in order to achieve better adjustment and tightening of the electric toothbrush 9 by the positioning block 5, refer to Figure 4 , Figure 5A screw 602 is provided on the back of the positioning pressing block 6. Preferably, in order to evenly press the handle of the electric toothbrush 9 with the positioning pressing block 6, two screws 602 are provided. A screw hole 501 corresponding to the screw 602 is provided on the positioning pressing plate 5. The screw 602 is connected with a nut 604 through the screw hole 501. A spring 603 is also provided around the screw 602 between the positioning pressing block 6 and the positioning pressing plate 5. By means of the spring 603, the positioning pressing block 6 is elastically connected to the bottom of the positioning pressing plate 5. In the process of pressing down and fixing the positioning pressing block 6 on the handle of the electric toothbrush 9, a spring 603 is formed. The electric toothbrush 9 can be protected by effective buffering, and at the same time, by adjusting the position of the nut 604 screwed into the screw rod 602, the height of the positioning block 6 can be adjusted, so that the positioning block 6 can press the handle of the electric toothbrush 9 in the best pressing manner. Therefore, in the process of the positioning block 6 pressing the electric toothbrush 9 from the top, the electric toothbrush 9 is well protected due to the buffering of the spring 603. In this embodiment, the material of the positioning block 6 is an elastic rubber material, especially a silicone rubber material, so that the positioning block 6 can better protect the electric toothbrush 9.

[0023] In this embodiment, in order to facilitate the pressure sensing verification operation of the electric toothbrush 9, refer to Figure 3 A first hand groove 202 is provided on the lower fixing seat 2. The first hand groove 202 and the lower handle groove 201 are vertically staggered. The first hand groove 202 is used to facilitate the removal of the electric toothbrush 9 from the lower fixing seat 2. Figure 4 A second hand groove 503 is provided in the middle of the positioning plate 5, and the second hand groove 503 is located above the switch button of the electric toothbrush 9. During the calibration of the electric toothbrush 9, the second hand groove 503 gives way to the tester, making it more convenient to operate the switch button of the electric toothbrush 9.

[0024] When checking the pressure sensitivity of the electric toothbrush 9, refer to Figure 2, place the electric toothbrush 9 in the lower fixing groove 201 of the lower fixing seat 2, start the start switch 8 set on the bottom plate 1, the cylinder 4 starts, and the positioning pressure plate 5 drives the positioning pressure block 6 to press and fix the electric toothbrush 9. After the electric toothbrush 9 is pressed and fixed, the electric toothbrush 9 remains in a horizontal state, and the brush head of the electric toothbrush 9 is located directly below the central axis of the guide groove 502 of the positioning pressure plate 5. After the electric toothbrush 9 is placed horizontally, the switch button on the electric toothbrush 9 is started to enter the six-axis horizontal calibration mode of the electric toothbrush 9. In this calibration mode, the electric toothbrush 9 The brush head is not loaded with calibration weight 7. After the six-axis horizontal calibration mode is completed, the electric toothbrush 9 is calibrated and adjusted by loading a calibration weight 7 with a weight of 100g in the working state and a calibration weight 7 with a weight of 300g in the maximum load state. Of course, the electric toothbrush 9 can also be calibrated at multiple points by using calibration weights 7 of other different weights, so that the pressure sensing structure of the electric toothbrush 9 can more truly and completely reflect the pressure sense of the force applied to the brush head of the electric toothbrush 9, thereby allowing the electric toothbrush 9 to provide users with a better and more realistic user experience.

[0025] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A pressure-sensitivity calibration device for an electric toothbrush, comprising a bottom plate, characterized in that: The bottom plate is provided with a lower fixing seat, and the lower fixing seat is provided with a lower handle groove for fixing the handle of the electric toothbrush, the lower handle groove is arranged in a semicircular arc, the handle of the electric toothbrush is fixed by the lower handle groove, and the brush head of the electric toothbrush extends outside the lower fixing seat, the bottom plate is provided with a bracket at the rear end of the lower fixing seat, a cylinder is installed on the bracket, the telescopic rod of the cylinder is telescopically directed downward, a positioning pressure plate is connected to the end of the telescopic rod of the cylinder, the positioning pressure plate is located above the lower fixing seat, and the positioning An adjustable positioning block is provided at one end of the pressure plate, and an upper handle groove corresponding to the lower handle groove is provided at the bottom of the positioning block, and the upper handle groove is set in a semicircular arc. By means of the cylinder, the positioning plate presses and fixes the handle of the electric toothbrush from the top with the positioning block, and a guide groove is provided at the other end of the positioning plate, and the guide groove is set in a circular shape, and the central axis of the guide groove is directly opposite to the brush head of the electric toothbrush. A calibration weight is provided in the guide groove, and the calibration weight is positioned by the guide groove and pressed against the brush head of the electric toothbrush.

2. The pressure-sensitivity calibration device for an electric toothbrush according to claim 1, characterized in that: The lower handle groove is arranged horizontally, and the upper handle groove is arranged horizontally.

3. The pressure-sensitivity calibration device for an electric toothbrush according to claim 1, characterized in that: The positioning pressure block has a screw on its back, and the positioning pressure plate is provided with a screw hole corresponding to the screw. The screw is connected with a nut through the screw hole. A spring is also provided around the screw between the positioning pressure block and the positioning pressure plate, and the positioning pressure block is elastically connected to the bottom of the positioning pressure plate by the spring.

4. The pressure-sensitivity calibration device for an electric toothbrush according to claim 1, characterized in that: The positioning pressing block is made of rubber.

5. A pressure-sensitivity calibration device for an electric toothbrush according to claim 4, characterized in that: The positioning pressing block is made of silicone rubber.

6. The pressure-sensitivity calibration device for an electric toothbrush according to claim 1, characterized in that: The lower fixing seat is provided with a first hand groove, and the first hand groove and the lower handle groove are vertically staggered.

7. The pressure-sensitivity calibration device for an electric toothbrush according to claim 1, characterized in that: A second hand groove is provided in the middle of the positioning pressing plate.

Images