Correcting toothbrush for children
By designing a children's orthodontic toothbrush with replaceable brush heads and intelligent monitoring functions, it solves the problem of children's difficulty in brushing their teeth independently, enabling them to squeeze toothpaste independently and monitor their brushing posture, effectively preventing tooth decay and periodontitis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2026-03-24
AI Technical Summary
Children often struggle to complete the brushing process independently, and existing toothbrushes fail to guide them towards good brushing habits, which can easily lead to oral diseases such as tooth decay and periodontitis.
A children's orthodontic toothbrush was designed, which includes a replaceable brush head, a toothpaste dispensing knob, a temperature sensor, and a nine-axis gyroscope. The toothpaste is dispensed independently by rotating the toothpaste dispensing knob, and the temperature sensor and gyroscope are used to monitor brushing time and posture to guide good brushing habits.
Children can brush their teeth independently, which helps prevent tooth decay and periodontitis, increases their interest and efficiency in brushing, and guides them to develop good brushing habits.
Smart Images
Figure CN224023099U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oral care technical field, especially oral care equipment, more specifically, a kind of child orthodontic toothbrush. BACKGROUND
[0002] Brushing teeth has the function of cleaning oral cavity, eliminating halitosis and reducing the prevalence rate of oral diseases, and brushing teeth is an important cleaning way for self-cleaning teeth and maintaining healthy teeth in daily life, and is also a necessary means for maintaining oral health. Correct brushing method is beneficial to preventing periodontitis, dental caries and other oral diseases and maintaining oral health. Nowadays, children intake a large amount of sweets, such as ice cream, chocolate, candy and the like, and correct brushing is particularly important for maintaining oral health of children.
[0003] In the process of realizing the utility model concept, the inventor finds that at least the following problems exist in the related art: children have difficulty in squeezing toothpaste by themselves when brushing teeth, and need help from parents to squeeze toothpaste, so children have difficulty in completing the brushing process by themselves; currently, children mainly brush teeth in a walking form, and either move around the house when brushing teeth and do a perfunctory job, or brush teeth while playing with a mobile phone and keep the toothbrush in the mouth without moving, or lie down and brush teeth while sleeping, and the toothbrush does not move for half a day, so it cannot be guaranteed that every tooth can be brushed, resulting in that food residues remain on teeth or between teeth, and cannot be effectively removed, and dental caries, periodontitis and other oral diseases are likely to occur.
[0004] Therefore, the skilled in the art urgently need to develop a child toothbrush, so that children can independently complete the brushing program and correct the bad brushing habits of children. SUMMARY
[0005] Therefore, the utility model wants to solve the technical problem to provide a child orthodontic toothbrush, and solve the problems that children cannot independently complete the brushing program by using the existing toothbrush, and the existing toothbrush cannot guide children to develop good brushing habits, so that children are likely to have dental caries, periodontitis and other oral diseases.
[0006] In order to solve the above technical problems, the specific embodiment of the utility model provides a child orthodontic toothbrush, which comprises: a brush handle having an empty cylinder for storing toothpaste and an opening for adding toothpaste into the empty cylinder; a replaceable brush head arranged at one end of the brush handle, wherein the replaceable brush head is provided with a toothpaste outlet communicating with the empty cylinder; and a toothpaste squeezing knob arranged at the other end of the brush handle, wherein the toothpaste squeezing knob has a rotating cap, a screw rod arranged on the rotating cap, and a piston threadedly connected with the screw rod, the screw rod is inserted into the empty cylinder, the rotating cap is rotated to drive the screw rod to rotate, and the screw rod is rotated to drive the piston to move away from or close to the rotating cap on the screw rod.
[0007] Specifically, the child orthodontic toothbrush can further comprise a toothpaste delivery pipe arranged on the toothpaste outlet for delivering toothpaste to the brush head.
[0008] Specifically, the child orthodontic toothbrush further comprises an anti-backflow valve arranged at the joint between the brush handle and the replaceable brush head for preventing toothpaste in the replaceable brush head from flowing back into the empty cartridge.
[0009] Specifically, the cross section of the rotating cap perpendicular to the axial direction is polygonal.
[0010] Specifically, the rotating cap is provided with anti-skid lines on the polygonal plane.
[0011] Specifically, the brush handle further has a cover, wherein the cover has a first thread, the opening has a second thread, and the first thread and the second thread are matched.
[0012] Specifically, the brush handle further has a clasp, wherein the clasp is hingedly connected with the cover, and the clasp is raised when the cover is rotated.
[0013] Specifically, the toothpaste squeezing knob is slidingly connected with the brush handle, wherein the toothpaste squeezing knob has an inner protrusion, the brush handle has an outer protrusion, the inner protrusion and the outer protrusion are buckled with each other, and the toothpaste squeezing knob is prevented from falling off the brush handle when the toothpaste squeezing knob is rotated on the brush handle.
[0014] Specifically, the child orthodontic toothbrush can further comprise a temperature sensor arranged in the brush handle, a microcontroller connected with the temperature sensor for receiving the temperature fed back by the temperature sensor, and a buzzer connected with the microcontroller for emitting a first buzzing sound under the control of the microcontroller when the temperature is higher than a preset temperature.
[0015] Specifically, the child orthodontic toothbrush can further comprise a nine-axis gyroscope connected with the microcontroller for emitting a second buzzing sound under the control of the microcontroller when the orientation of the brush handle deviates from a predetermined orientation.
[0016] According to the above embodiments of the utility model, the child can squeeze toothpaste by rotating the toothpaste squeezing knob at the rear end of the brush handle, the brush head can deliver toothpaste, the temperature sensor can monitor the tooth brushing time of the child, the nine-axis gyroscope can detect the orientation of the toothbrush, and the tooth brushing time and action of the child can be supervised, so that the problems that the child cannot independently complete the tooth brushing procedure by using the existing toothbrush, the child cannot form good tooth brushing habits by using the existing toothbrush, and the child is prone to suffer from oral diseases such as dental caries and periodontitis can be at least partially solved, and therefore the child does not need the help of parents to squeeze toothpaste, can independently complete the tooth brushing procedure, can form good tooth brushing habits, and the technical effect that the child is prevented from suffering from oral diseases such as dental caries and periodontitis as much as possible can be achieved.
[0017] It should be appreciated that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not restrictive of the scope of the application as it is claimed. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the application and together with the description, explain the principles of the application.
[0019] Figure 1 A first structure schematic view of a child orthodontic toothbrush provided by an embodiment of the application.
[0020] Figure 2 A second structure schematic view of a child orthodontic toothbrush provided by an embodiment of the application.
[0021] Figure 3 A third structure schematic view of a child orthodontic toothbrush provided by an embodiment of the application.
[0022] Figure 4 A structure schematic view of a rotating cap provided by an embodiment of the application.
[0023] Figure 5 A first structure schematic view of a brush handle provided by an embodiment of the application.
[0024] Figure 6 A second structure schematic view of a brush handle provided by an embodiment of the application.
[0025] Figure 7 A connection schematic view of a toothpaste squeezing knob and a brush handle provided by an embodiment of the application.
[0026] Figure 8 A fourth structure schematic view of a child orthodontic toothbrush provided by an embodiment of the application.
[0027] Figure 9 A fifth structure schematic view of a child orthodontic toothbrush provided by an embodiment of the application.
[0028] BRIEF DESCRIPTION OF DRAWINGS
[0029] 1 brush handle 2 replaceable brush head
[0030] 3 toothpaste squeezing knob 4 toothpaste conveying pipe
[0031] 5 anti-backflow valve 6 temperature sensor
[0032] 7 microcontroller 8 buzzer
[0033] 9 nine-axis gyroscope 11 empty tube
[0034] 12 opening 13 lid
[0035] 14 pinch tab 15 outer protrusion
[0036] 21 toothpaste outlet 31 rotating cap
[0037] 32 screw rod 33 piston
[0038] 34 inner protrusion 311 non-slip pattern
[0039] 121 second thread 131 first thread DETAILED DESCRIPTION
[0040] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will explain the spirit of the present application with the help of the drawings and detailed description. Any person skilled in the art can change and modify the technology taught by the present application without departing from the spirit and scope of the present application.
[0041] The schematic embodiments of the present application and their descriptions are used to explain the present application, but not as a limitation of the present application. In addition, the same or similar reference numerals in the drawings and embodiments are used to represent the same or similar parts.
[0042] As for the "first", "second", and the like used in this text, they do not mean to indicate the order or sequence, nor to limit the present application. They are only used to distinguish the elements or operations described by the same technical terms.
[0043] As for the directional terms used in this text, such as: up, down, left, right, front or back, etc., they are only the direction of the drawings. Therefore, the directional terms used are used to explain and not to limit the present creation.
[0044] As for the "include", "include", "have", "contain" and the like used in this text, they are all open terms, that is, they mean to include but not limited to.
[0045] As for the "and / or" used in this text, it includes any or all combinations of the described things.
[0046] As for "multiple" in this text, it includes "two" and "more than two"; as for "multiple groups" in this text, it includes "two groups" and "more than two groups".
[0047] As used herein, the terms "substantially," "about," and the like are used to describe
[0048] All terms used herein, including technical and scientific terms, have the meanings commonly understood by one of ordinary skill in the art unless otherwise defined. It should be further noted that the use of terms such as "first," "second," and the like can be used in this disclosure to describe various elements, but these elements should not be limited by these terms since such terms are also used to describe nature. Terms in accordance with their context should be interpreted by the ordinary and accustomed meaning of such terms and not in an idealized or overly formal sense unless expressly so defined herein.
[0049] In the event a term is used in this disclosure in a manner that dependent claims use that term in a different manner, such that a conflict occurs, the dependent claims are construed to be in accordance with the manner in which that term is used herein. In the event a term is used in this disclosure in a manner that dependent claims use that term in a manner that is inconsistent therewith, such that a conflict occurs, the dependent claims are construed to be in accordance with the manner in which that term is used herein.
[0050] Figure 1 A first structure diagram of a child orthodontic toothbrush provided by the embodiment of the present application is shown in the figure.
[0051] In the optional embodiment of the present application, as shown in the figure, Figure 1 The child orthodontic toothbrush can include a brush handle 1, a replaceable brush head 2, and a toothpaste squeezing knob 3.
[0052] Specifically, the brush handle 1 has a storage tube 11 for storing toothpaste and an opening 12 for adding toothpaste into the storage tube 11. A replaceable brush head 2 is arranged at one end of the brush handle 1, wherein the replaceable brush head 2 is provided with a toothpaste outlet 21 communicating with the storage tube 11. A toothpaste squeezing knob 3 is arranged at the other end of the brush handle 1, wherein the toothpaste squeezing knob 3 has a rotating cap 31, a screw rod 32 arranged on the rotating cap 31, and a piston 33 threadedly connected with the screw rod 32. The screw rod 32 penetrates into the storage tube 11, the rotating cap 31 rotates to drive the screw rod 32 to rotate, and the screw rod 32 rotates to drive the piston 33 to move on the screw rod 32 away from or close to the rotating cap 31.
[0053] In the optional embodiment of the utility model, toothpaste required by children for tooth brushing can be added into the storage tube 11 through the opening 12, the replaceable brush head 2 can discharge toothpaste by rotating the toothpaste squeezing knob 3 at the rear end of the brush handle 1, children do not need parents to help squeeze toothpaste, can independently complete the tooth brushing procedure, improve the interest of children in tooth brushing, guide children to form good tooth brushing habits, and avoid children from having oral diseases such as dental caries and periodontitis as far as possible. According to the use time length and wear degree of the replaceable brush head 2, the replaceable brush head 2 can be replaced regularly, which is convenient and sanitary, and the brush handle 1 and the toothpaste squeezing knob 3 can be used for a long time, thereby saving cost.
[0054] Figure 2 A second structure schematic view of the child orthodontic toothbrush is provided for the specific embodiment of the utility model.
[0055] In the optional embodiment of the utility model, as shown in Figure 2 The child orthodontic toothbrush can further include a toothpaste conveying pipe 4.
[0056] Specifically, the toothpaste conveying pipe 4 is arranged on the toothpaste outlet 21, and the toothpaste conveying pipe 4 is used for conveying toothpaste to the top end of the bristle. The material of the toothpaste conveying pipe 4 can be silica gel, rubber or the like. The outlet of the toothpaste conveying pipe 4 can be slightly lower than the bristle on the brush head 2. For example, the outlet of the toothpaste conveying pipe 4 can be slightly lower than the top end of the bristle by 1mm to 3mm.
[0057] In the optional embodiment of the utility model, the toothpaste conveying pipe 4 conveys toothpaste to the top end of the bristle, improves the efficiency of tooth brushing, and makes the toothpaste be fully utilized. The material of the toothpaste conveying pipe 4 is made of soft material such as silica gel and rubber, which will not cause discomfort during tooth brushing. The outlet of the toothpaste conveying pipe 4 is slightly lower than the bristle on the brush head 2, which further reduces the discomfort during tooth brushing.
[0058] Figure 3 A third structure schematic view of the child orthodontic toothbrush is provided for the specific embodiment of the utility model.
[0059] In the optional embodiment of the utility model, as shown in Figure 3As shown, the child orthodontic toothbrush can further comprise an anti-backflow valve 5.
[0060] Specifically, the anti-backflow valve 5 is arranged at the connection between the brush handle 1 and the replaceable brush head 2, and is used to prevent the toothpaste in the replaceable brush head 2 from flowing back into the empty cartridge 11. For example, the anti-backflow valve 5 can be arranged on the brush handle 1, or can be arranged on the replaceable brush head 2.
[0061] In an optional embodiment of the utility model, the anti-backflow valve 5 prevents the toothpaste in the replaceable brush head 2 from flowing back into the empty cartridge 11, prevents the toothpaste in the empty cartridge 11 from being contaminated, and ensures the cleanliness of the toothpaste in the empty cartridge 11. The anti-backflow valve 5 can be fixed at the connection between the brush handle 1 and the replaceable brush head 2 through a hinge, and the toothpaste squeezing knob 3 at the rear end of the brush handle 1 is rotated, and under the pressure of the toothpaste, the anti-backflow valve 5 rotates towards the brush head 2, and the toothpaste flows towards the brush head 2; if the toothpaste in the brush head 2 flows back into the empty cartridge 11, the anti-backflow valve 5 rotates towards the brush handle 1, the anti-backflow valve 5 closes the toothpaste channel between the brush handle 1 and the replaceable brush head 2, and the toothpaste is prevented from flowing back into the empty cartridge 11.
[0062] Figure 4 A structure diagram of a rotating cap is provided for the specific embodiment of the utility model.
[0063] In an optional embodiment of the utility model, as shown in the figure, Figure 4 As shown, the cross section of the rotating cap 31 perpendicular to the axial direction is a polygon. Anti-skid lines 311 are arranged on the polygonal plane of the rotating cap 31.
[0064] In an optional embodiment of the utility model, the cross section of the rotating cap 31 perpendicular to the axial direction is a polygon, and when a child rotates the rotating cap 31 by hand, it is not easy to slip, and it is convenient to squeeze out toothpaste. Anti-skid lines 311 are arranged on the polygonal plane of the rotating cap 31, further improving the anti-skid property, and facilitating the child to squeeze out toothpaste.
[0065] Figure 5 A first structure diagram of a brush handle is provided for the specific embodiment of the utility model.
[0066] In an optional embodiment of the utility model, as shown in the figure, Figure 5 As shown, the brush handle 1 further has a cover 13, wherein the cover 13 has a first thread 131, the opening 12 has a second thread 121, and the first thread 131 and the second thread 121 are matched.
[0067] In the optional embodiment of the utility model, the first thread 131 of the cover 13 is matched with the second thread 121 of the opening 12, that is, the cover 13 is threadedly connected with the opening 12, after toothpaste required by children for brushing teeth is added into the empty cylinder 11 through the opening 12, the opening 12 can be closed by the cover 13, so that toothpaste does not overflow from the opening 12 when the toothpaste squeezing knob 3 at the rear end of the rotating toothbrush handle 1 squeezes toothpaste, and user experience is high.
[0068] Figure 6 A second structure diagram of a brush handle is provided for the embodiment of the utility model.
[0069] In the optional embodiment of the utility model, as shown in the figure, Figure 6 The brush handle 1 further has a pinch piece 14, wherein the pinch piece 14 is hingedly connected with the cover 13, and the pinch piece 14 is erected when the cover 13 is rotated.
[0070] In the optional embodiment of the utility model, the pinch piece 14 is hingedly connected with the cover 13, the pinch piece 14 can be erected to rotate the cover 13, the problem that the cover 13 is inconvenient to disassemble and assemble when the cover 13 is too short is solved, and it is convenient for users to add toothpaste required by children for brushing teeth into the empty cylinder 11 through the opening 12.
[0071] Figure 7 A connection diagram of a toothpaste squeezing knob and a brush handle is provided for the embodiment of the utility model.
[0072] In the optional embodiment of the utility model, as shown in the figure, Figure 7 The toothpaste squeezing knob 3 is slidably connected with the brush handle 1, wherein the toothpaste squeezing knob 3 has an inner protrusion 34, the brush handle 1 has an outer protrusion 15, the inner protrusion 34 and the outer protrusion 15 are buckled with each other, and the toothpaste squeezing knob 3 is prevented from falling off from the brush handle 1 when rotating on the brush handle 1.
[0073] In the optional embodiment of the utility model, the inner protrusion 34 of the toothpaste squeezing knob 3 and the outer protrusion 15 of the brush handle 1 are buckled with each other, the toothpaste squeezing knob 3 does not fall off from the brush handle 1 when slidingly rotating on the brush handle 1, and user experience is improved.
[0074] Figure 8 A fourth structure diagram of a children's corrective toothbrush is provided for the embodiment of the utility model.
[0075] In the optional embodiment of the utility model, as shown in the figure, Figure 8 The children's corrective toothbrush can further include a temperature sensor 6, a microcontroller 7 and a buzzer 8.
[0076] Specifically, the temperature sensor 6 is arranged in the brush handle 1. The microcontroller 7 is connected with the temperature sensor 6, and the microcontroller 7 is used for receiving the temperature feedback by the temperature sensor 6. The buzzer 8 is connected with the microcontroller 7, and the buzzer 8 is used for emitting a first buzzing sound under the control of the microcontroller 7 when the temperature is higher than a preset temperature.
[0077] In the optional embodiment of the utility model, the buzzer 8 can vibrate and emit a prompt sound. When the child holds the brush handle 1 to brush teeth, the temperature sensor 6 feeds back the temperature of the brush handle 1 sensed to the microcontroller 7. After the child holds the brush handle 1 for a certain time, the temperature of the brush handle 1 is higher than the preset temperature. When the temperature of the brush handle 1 is higher than the preset temperature, the microcontroller 7 controls the buzzer 8 to emit the first buzzing sound, which stimulates the child or reminds the parent that the child has brushed teeth for a certain time, guides the child to form a good tooth brushing habit and avoids the child from having oral diseases such as dental caries and periodontitis as far as possible. The preset temperature can be 34 DEG C, 34.5 DEG C, 35 DEG C, 35.5 DEG C, 36 DEG C and the like.
[0078] Figure 9 A fifth structure diagram of the child correcting toothbrush is provided for the specific embodiment of the utility model.
[0079] In the optional embodiment of the utility model, as shown in Figure 9 The child correcting toothbrush can further include a nine-axis gyroscope 9.
[0080] Specifically, the nine-axis gyroscope 9 is connected with the microcontroller 7, and the nine-axis gyroscope 9 is used for emitting a second buzzing sound by the buzzer 8 under the control of the microcontroller 7 when the orientation of the brush handle 1 deviates from a predetermined orientation.
[0081] In the optional embodiment of the utility model, the nine-axis gyroscope 9 can detect the posture and motion state of the brush handle 1. If the child lies on the bed to brush teeth, or holds the toothbrush in the mouth without moving, or brushes teeth in a wrong way, or holds the toothbrush without moving, the microcontroller 7 controls the buzzer 8 to emit the second buzzing sound, which reminds the child or the parent to pay attention and timely correct the bad tooth brushing posture of the child, guides the child to form a good tooth brushing habit and avoids the child from having oral diseases such as dental caries and periodontitis as far as possible.
[0082] In the optional embodiment of the utility model, the child correcting toothbrush can further include a power supply for supplying power to the temperature sensor 6, the microcontroller 7, the buzzer 8 and / or the nine-axis gyroscope 9. The power supply can include a rechargeable battery, a dry battery, a solar cell, even a power generation battery and the like. The power generation battery is charged when the child brushes teeth, which further improves the interest of the child in brushing teeth and guides the child to form a good tooth brushing habit. The utility model is not limited to this.
[0083] It is understood by those skilled in the art that the features recited in the various embodiments and / or claims of the present application can be combined or / and integrated in various combinations, even if such combinations are not explicitly recited in the present application. In particular, the features recited in the various embodiments and / or claims of the present application can be combined and / or integrated in various combinations without departing from the spirit and teachings of the present application. All such combinations and / or integrations are within the scope of the present application.
[0084] The embodiments of the present application are described above. However, these embodiments are merely for illustrative purposes, and are not intended to limit the scope of the present application. Although each embodiment is described above separately, this does not mean that the measures in each embodiment cannot be advantageously used in combination. The scope of the present application is defined by the appended claims and their equivalents. Without departing from the scope of the present application, various alternatives and modifications can be made by those skilled in the art, and all such alternatives and modifications shall fall within the scope of the present application.
Claims
1. A child orthodontic toothbrush characterized by, The child orthodontic toothbrush comprises: a handle (1) having a hollow cylinder (11) for storing toothpaste and an opening (12) for adding toothpaste into the hollow cylinder (11), wherein the handle (1) further has a cover (13), wherein the cover (13) has a first thread (131), the opening (12) has a second thread (121), the first thread (131) and the second thread (121) are matched, and the handle (1) further has a pinch piece (14), wherein the pinch piece (14) is hingedly connected with the cover (13), and the pinch piece (14) is erected when the cover (13) is rotated; a replaceable brush head (2) arranged at one end of the handle (1), wherein the replaceable brush head (2) is internally provided with a toothpaste outlet (21) communicating with the hollow cylinder (11); a toothpaste squeezing knob (3) arranged at the other end of the handle (1), wherein the toothpaste squeezing knob (3) has a rotating cap (31), a screw rod (32) arranged on the rotating cap (31), and a piston (33) threadedly connected with the screw rod (32), the screw rod (32) is inserted into the hollow cylinder (11), the rotating cap (31) is rotated to drive the screw rod (32) to rotate, and the screw rod (32) is rotated to drive the piston (33) to move on the screw rod (32) away from or close to the rotating cap (31); and a toothpaste conveying pipe (4) arranged on the toothpaste outlet (21) and used for conveying toothpaste to the top end of the bristles.
2. The orthodontic toothbrush for children according to claim 1, wherein The child orthodontic toothbrush further comprises: an anti-backflow valve (5) arranged at the joint of the handle (1) and the replaceable brush head (2) and used for preventing toothpaste in the replaceable brush head (2) from flowing back into the hollow cylinder (11).
3. The orthodontic toothbrush for children according to claim 1, wherein The rotating cap (31) is polygonal in the cross section perpendicular to the axial direction.
4. The orthodontic toothbrush for children according to claim 3, wherein Anti-skid lines (311) are arranged on the polygonal plane of the rotating cap (31).
5. The orthodontic toothbrush for children according to claim 1, wherein The toothpaste squeezing knob (3) is slidably connected with the handle (1), wherein the toothpaste squeezing knob (3) has an inner protrusion (34), the handle (1) has an outer protrusion (15), the inner protrusion (34) and the outer protrusion (15) are buckled with each other, and the toothpaste squeezing knob (3) is prevented from falling off the handle (1) when the toothpaste squeezing knob (3) is rotated on the handle (1).
6. The orthodontic toothbrush for children of claim 1, wherein, The child orthodontic toothbrush further comprises: a temperature sensor (6) arranged in the handle (1); a microcontroller (7) connected with the temperature sensor (6) and used for receiving the temperature fed back by the temperature sensor (6); and a buzzer (8) connected with the microcontroller (7) and used for emitting a first buzzing sound under the control of the microcontroller (7) when the temperature is higher than a preset temperature.
7. The orthodontic toothbrush for children according to claim 6, wherein The child orthodontic toothbrush further comprises: a nine-axis gyroscope (9) connected with the microcontroller (7) and used for causing the buzzer (8) to emit a second buzzing sound under the control of the microcontroller (7) when the orientation of the handle (1) deviates from a predetermined orientation.