Magnetic transmission water toothpick and driving assembly thereof

Abstract

The utility model relates to a magnetic transmission water toothpick and a driving assembly thereof, the magnetic transmission water toothpick comprises a driving assembly, and the driving assembly comprises a motor, a transmission mechanism and a connecting rod connected with the transmission mechanism; the transmission mechanism comprises a small bracket, a large bracket, K N-pole and S-pole small magnetic elements and Q N-pole and S-pole large magnetic elements which are fixed on a rotating shaft of the motor; the N-pole small magnetic element and the S-pole small magnetic element are alternately arranged on the small bracket; the N-pole magnetic elements and the S-pole magnetic elements are alternately arranged on the large bracket; the N-pole and S-pole small magnetic element is not in contact with the N-pole and S-pole large magnetic element; the connecting rod is arranged on the large bracket; when the motor works, the small bracket rotates, and the N-pole and S-pole small magnetic element and the N-pole and S-pole large magnetic element enable the large bracket to rotate under the magnetic coupling action, so that the connecting rod does linear reciprocating motion; k and Q are positive integers. The magnetic transmission tooth washing device has the advantages of low noise, low cost, long service life, high efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning, in particular to a tooth washer, and more particularly to a driving assembly used on the tooth washer. Background Art

[0002] With the improvement of living standards, the efficiency of brushing teeth with traditional toothbrushes is low, so the use of dental irrigators for cleaning teeth has been derived. The principle is that a liquid storage chamber is built into the shell of the dental irrigator, and a diaphragm and a driving component are correspondingly arranged in the liquid storage chamber. The driving component drives the diaphragm to reciprocate, and the pressure generated thereby draws water from the water tank into the liquid storage chamber, and then the water is flushed out from the liquid storage chamber from the water outlet to the user's mouth, so that the user's mouth can be cleaned.

[0003] The drive assembly on the prior art tooth washer includes a motor, a transmission mechanism that converts the rotational motion of the motor shaft into linear reciprocating motion, and a connecting rod connected to the transmission mechanism; the transmission mechanism includes a gear group transmission mechanism composed of a pinion and a large gear, the pinion is fixed to the output end of the motor shaft, the connecting rod is arranged at the output position of the large gear, the pinion and the large gear are meshed, thereby converting the rotational motion of the motor shaft into linear reciprocating motion, the pinion can be spur gear, helical gear or bevel gear, and the large gear can be a large gear plate. Application numbers: 201941039505.1, 202020554203.6 and 202320170395.1 all use this drive assembly, and the shortcomings of the drive assembly on this tooth washer are:

[0004] 1. Loud noise: The transmission mechanism of the prior art all uses the gear involute method. The meshing position is the maximum point and line of the involute of the large gear and the small gear. Under the action of force, the large gear and the small gear generate meshing noise, which is the main source of the noise of the tooth washer. Therefore, the noise of the tooth washer of the prior art is not less than 75 decibels. There is no good and effective way to completely reduce the noise; and after a long time of use, the noise will be even louder;

[0005] Second, short life: The small gear and the large gear are meshed, and during use, they generate heat and wear quickly. The gears often have fewer teeth, missing teeth, or damaged teeth, which makes the transmission mechanism easily damaged, thus affecting the service life of the tooth washer;

[0006] 3. High cost: The meshing of the large gear and the small gear requires precise structural matching. The incoming materials need to be manually measured, the process needs to be strengthened and inspected, and the assembly needs to be inspected, which consumes a lot of manpower and expenses.

[0007] 4. Low efficiency of motor use: The gear transmission mechanism composed of small gears and large gears consumes part of the motor's energy during the process of mutual meshing, which does not fully utilize the motor's energy and is not environmentally friendly. Utility Model Content

[0008] The technical problem to be solved by the utility model is to avoid the deficiencies of the above-mentioned prior art and provide a magnetic transmission tooth washer and its driving component. The driving component of the utility model does not adopt a contact method to convert the rotational motion of the motor shaft into a linear reciprocating motion, but adopts a non-contact method to convert the rotational motion of the motor shaft into a linear reciprocating motion, and especially directly adopts a magnetic coupling method to convert the rotational motion of the motor shaft into a linear reciprocating motion, thereby eliminating the structural assembly of the meshing line and point of the small gear and the large gear, fundamentally reducing the noise generation, reducing the inspection of incoming materials and the quality control of the process assembly, and completely reducing the noise generated by the mutual meshing of gears, the short life and the high energy consumption problems, and has the advantages of low noise, low cost, long life and high efficiency.

[0009] The technical solution adopted by the utility model to solve the technical problem is:

[0010] A magnetic transmission tooth washer is provided, comprising a driving assembly, the driving assembly further comprising a motor, a transmission mechanism and a connecting rod connected to the transmission mechanism; the transmission mechanism comprises a small bracket, a large bracket, K N-extremely small magnetic elements, K S-extremely small magnetic elements, Q N-extremely large magnetic elements and Q S-extremely large magnetic elements; the N-extremely small magnetic elements and the S-extremely small magnetic elements are arranged alternately on the small bracket, and the small bracket is fixed to the output end of the rotating shaft of the motor; the N-extremely large magnetic elements and the S-extremely large magnetic elements are arranged alternately on the large bracket; the N-extremely small magnetic elements on the small bracket are arranged alternately on the large bracket; The N and S extremely small magnetic elements do not contact the N extremely large magnetic elements and the S extremely large magnetic elements on the large bracket, and a gap is retained; the connecting rod is arranged on the large bracket; when the motor works, the rotating shaft and the small bracket thereon rotate, and the N extremely small magnetic elements and the S extremely small magnetic elements on the small bracket and the N extremely large magnetic elements and the S extremely large magnetic elements on the large bracket rotate under the action of magnetic coupling, thereby causing the large bracket to rotate, thereby causing the connecting rod connected to the large bracket to perform linear reciprocating motion; K and Q are both positive integers, and K≤Q, in particular Q=4K, for example, Q is 8 and K is 2.

[0011] The small bracket is conical, and is provided with the same number of first strip protrusions as the N extremely small magnetic elements and the same number of second strip protrusions as the S extremely small magnetic elements; the N extremely small magnetic element is conical arc-shaped, and is provided with a first strip groove matched with the first strip protrusion; the S extremely small magnetic element is also conical arc-shaped, and is provided with a second strip groove matched with the second strip protrusion; the first strip groove of the N extremely small magnetic element is fixed on the first strip protrusion of the small bracket; the second strip groove of the S extremely small magnetic element is fixed on the second strip protrusion of the small bracket. The N extremely large magnetic element and the S extremely large magnetic element are tile-shaped, and the large bracket is provided with the same number of tile-shaped grooves that are matched with the N extremely large magnetic element and the S extremely large magnetic element, and the N extremely large magnetic element and the S extremely large magnetic element are respectively fixed on the tile-shaped grooves of the large bracket.

[0012] The gap between the N-extremely small magnetic element and the S-extremely small magnetic element on the small bracket and the N-extremely large magnetic element and the S-extremely large magnetic element on the large bracket is between 0.1 and 0.4 mm.

[0013] The adjacent N-large magnetic elements and S-large magnetic elements can be made into a whole.

[0014] The utility model also provides a driving assembly for use on a tooth washer, comprising a motor, a transmission mechanism and a connecting rod connected to the transmission mechanism; the transmission mechanism comprises a small bracket, a large bracket, K N-extremely small magnetic elements, K S-extremely small magnetic elements, Q N-extremely large magnetic elements and Q S-extremely large magnetic elements; the N-extremely small magnetic elements and the S-extremely small magnetic elements are arranged alternately on the small bracket, and the small bracket is fixed to the output end of the rotating shaft of the motor; the N-extremely large magnetic elements and the S-extremely large magnetic elements are arranged alternately on the large bracket; the small The N-extremely small magnetic elements and the S-extremely small magnetic elements on the bracket do not contact the N-extremely large magnetic elements and the S-extremely large magnetic elements on the large bracket, and a gap is retained; the connecting rod is arranged on the large bracket; when the motor is working, the rotating shaft and the small bracket thereon rotate, and the N-extremely small magnetic elements and the S-extremely small magnetic elements on the small bracket and the N-extremely large magnetic elements and the S-extremely large magnetic elements on the large bracket rotate under the action of magnetic coupling, thereby causing the connecting rod connected to the large bracket to perform linear reciprocating motion; K and Q are both positive integers, and K≤Q.

[0015] Compared with the prior art, the magnetic transmission tooth washer and its driving assembly of the utility model have the following beneficial effects:

[0016] The driving component of the magnetic transmission toothbrush of the present invention adopts a magnetic element to rotate the large bracket under the action of magnetic coupling, thereby causing the connecting rod connected to the large bracket to perform linear reciprocating motion; adopting this structure, the magnetic transmission toothbrush and its driving component of the present invention do not adopt a contact method to convert the rotational motion of the motor shaft into linear reciprocating motion, but adopt a non-contact method to convert the rotational motion of the motor shaft into linear reciprocating motion, especially directly adopt a magnetic coupling method to convert the rotational motion of the motor shaft into linear reciprocating motion, cancel the structural assembly of the meshing line and point of the small gear and the large gear, fundamentally reduce the noise generation, reduce the inspection of incoming materials and the quality control of the process assembly, and completely reduce the noise generated by the mutual meshing of gears, short life and high energy consumption problems, and have the advantages of low noise, low cost, long life and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main orthographic projection of the utility model magnetic transmission tooth washer;

[0018] Figure 2 It is a schematic diagram of an axonometric projection of the drive assembly of the utility model, that is, the drive assembly of the magnetic transmission tooth washer;

[0019] Figure 3 is a schematic diagram of an axonometric projection of the drive assembly after decomposition;

[0020] Figure 4 It is a schematic diagram of the axonometric projection of the motor and transmission mechanism of the drive assembly after decomposition;

[0021] Figure 5 It is a schematic diagram of the axonometric projection of the large bracket, the N large magnetic element and the S large magnetic element of the transmission mechanism when they are assembled together;

[0022] Figure 6 is a schematic diagram of an axonometric projection of the large bracket, the N-large magnetic element and the S-large magnetic element after decomposition;

[0023] Figure 7 It is a schematic diagram of the axonometric projection of the small bracket, the N-th smallest magnetic element and the S-th smallest magnetic element of the transmission mechanism;

[0024] Figure 8 is a schematic diagram of an axonometric projection of the small bracket, the N-th smallest magnetic element, and the S-th smallest magnetic element after decomposition;

[0025] Fig. 9 It is a schematic diagram of an axonometric projection of another embodiment of the large bracket, N large magnetic elements and S large magnetic elements after decomposition. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] See also Figures 1 to 9 , provides a magnetic transmission tooth washer, including a driving assembly 9, the driving assembly 9 further including a motor 90, a transmission mechanism 91 and a connecting rod 92 connected to the transmission mechanism 91; the transmission mechanism 91 includes a small bracket 911, a large bracket 912, K N-extremely small magnetic elements 913, K S-extremely small magnetic elements 914, Q N-extremely large magnetic elements 915 and Q S-extremely large magnetic elements 916; the N-extremely small magnetic elements 913 and the S-extremely small magnetic elements 914 are alternately arranged on the small bracket 911, and the small bracket 911 is fixed to the output end of the rotating shaft 901 of the motor 90; the The N-large magnetic elements 915 and the S-large magnetic elements 916 are arranged alternately on the large bracket 912; the N-large magnetic elements 913 and the S-large magnetic elements 914 on the small bracket 911 do not contact the N-large magnetic elements 915 and the S-large magnetic elements 916 on the large bracket 912, and a gap is retained; the structure of the small bracket 911 is somewhat similar to that of the small gear in the prior art, except that the small bracket 911 does not have bevel teeth meshing with the large gear in the prior art, and the structure of the large bracket 912 is somewhat similar to that of the large gear in the prior art, except that the large bracket 912 does not have bevel teeth meshing with the small gear in the prior art. The positional relationship between the small bracket 911 and the N-extremely small magnetic element 913 and the S-extremely small magnetic element 914 thereon and the large bracket 912 and the N-extremely large magnetic element 915 and the S-extremely large magnetic element 916 thereon is similar to the positional relationship between the large gear and the small gear in the prior art, except that the large gear and the small gear in the prior art are in a mutually meshing positional relationship, while the N-extremely small magnetic element 913 and the S-extremely small magnetic element 914 on the small bracket 911 of the utility model do not contact with the N-extremely large magnetic element 915 and the S-extremely large magnetic element 916 on the large bracket 912, and a gap is retained; the The connecting rod 92 is arranged on the large bracket 912; when the motor 90 is working, the rotating shaft 901 and the small bracket 911 thereon rotate, and the N-pole small magnetic element 913 and the S-pole small magnetic element 914 on the small bracket 911 and the N-pole large magnetic element 915 and the S-pole large magnetic element 916 on the large bracket 912 rotate the large bracket 912 under the action of magnetic coupling, thereby causing the connecting rod 92 connected to the large bracket 912 to perform linear reciprocating motion; K and Q are both positive integers, and K≤Q, especially Q=4K, for example, Q is 8, K is 2, and this configuration has a very good transmission effect. The N-pole small magnetic element 913 and the N-pole large magnetic element 915 can use N-pole magnets; the S-pole small magnetic element 914 and the S-pole large magnetic element 916 can use S-pole magnets.

[0028] Figure 1The utility model is a schematic diagram of an orthographic projection of a magnetic transmission tooth washer of the utility model. In the figure, number 1 is a water tank, number 2 is a shell, and number 3 is a nozzle. Figure 2 and Figure 3 It is a driving assembly 9 of a magnetic transmission tooth washer, and some are also called a movement assembly or a water pump assembly. The driving assembly 9 is arranged in a housing 2 of the magnetic transmission tooth washer. The number 93 in the figure is a latch, which is used to connect a connecting rod 92 with a large bracket 912. A waist-shaped long strip insertion hole 9211 is provided on the connecting rod 92. The latch 93 passes through the waist-shaped long strip insertion hole 9211 of the connecting rod 92 and is inserted into a fixing hole (not marked) on the cylinder of the large bracket 912, thereby connecting the connecting rod 92 with the large bracket 912; the number 94 is a piston bracket, the number 95 is a piston, the number 96 is a pump body, the number 97 is a silicone valve, the number 98-1 is a first silicone ring, the number 99 is a nozzle seat, the number 98-2 is a second silicone ring, and the number 98-3 is a third silicone ring. Their structures and assembly relationships are prior art and will not be repeated here.

[0029] See also Figure 7 and Figure 8 The small bracket 911 is conical, and is provided with the same number of first strip protrusions 9119 as the N extremely small magnetic elements 913 and the same number of second strip protrusions 9118 as the S extremely small magnetic elements 914; the N extremely small magnetic elements 913 are conical arc-shaped, and are provided with first strip grooves 9139 adapted to the first strip protrusions 9119; the S extremely small magnetic elements 914 are also conical arc-shaped, and are provided with second strip grooves 9148 adapted to the second strip protrusions 9118; the first strip grooves 9139 of the N extremely small magnetic elements 913 are fixed on the first strip protrusions 9119 of the small bracket 911; the second strip grooves 9148 of the S extremely small magnetic elements 914 are fixed on the second strip protrusions 9118 of the small bracket 911, and the fixing method of the protrusion and groove structure and / or the fixing method of the fixing glue can be adopted. See Figure 5 and Figure 6 The N large magnetic element 915 and the S large magnetic element 916 are in the shape of tiles, and the large bracket 912 is provided with tile-shaped grooves 9129 which are equal in number and compatible with the N large magnetic element 915 and the S large magnetic element 916. The N large magnetic element 915 and the S large magnetic element 916 are respectively fixed on the tile-shaped grooves 9129 of the large bracket 912, and can be fixed by fixing glue.

[0030] See also Figure 2 In order to achieve a better transmission effect, the gap between the N-extremely small magnetic element 913 and the S-extremely small magnetic element 914 on the small bracket 911 and the N-extremely large magnetic element 915 and the S-extremely large magnetic element 916 on the large bracket 912 is between 0.1 and 0.4 mm.

[0031] Each N-large magnetic element 915 and each S-large magnetic element 916 can be a separate part; or, adjacent N-large magnetic elements 915 and S-large magnetic elements 916 can be made into a whole. For example, in such a structural manner, see FIG. 9, two N-large magnetic elements 915 and two S-large magnetic elements 916, a total of four large magnetic elements, are made into a whole, forming a large magnetic element module, wherein the N-large magnetic elements 915 and the S-large magnetic elements 916 are arranged alternately, so that eight N-large magnetic elements 915 and eight S-large magnetic elements 916, a total of sixteen large magnetic elements, are made into four large magnetic element modules. It is also possible to make all N-large magnetic elements 915 and all S-large magnetic elements 916 into a whole, wherein the N-large magnetic elements 915 and the S-large magnetic elements 916 are arranged alternately.

[0032] The drive assembly of the utility model can be used on a tooth washer, and can also be used on other equipment or devices that require the drive assembly.

[0033] The above-mentioned embodiments only express the preferred implementation modes of the present utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present utility model. It should be pointed out that, for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the present utility model, and these all belong to the protection scope of the present utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the present utility model should belong to the coverage of the claims of the present utility model.

Claims

1. A magnetic transmission tooth washer, comprising a drive assembly (9), wherein the drive assembly (9) further comprises a motor (90), a transmission mechanism (91) and a connecting rod (92) connected to the transmission mechanism (91); characterized in that: The transmission mechanism (91) comprises a small bracket (911), a large bracket (912), K N-extremely small magnetic elements (913), K S-extremely small magnetic elements (914), Q N-extremely large magnetic elements (915) and Q S-extremely large magnetic elements (916); the N-extremely small magnetic elements (913) and the S-extremely small magnetic elements (914) are arranged alternately on the small bracket (911), and the small bracket (911) is fixed to the output end of the rotating shaft (901) of the motor (90); the N-extremely large magnetic elements (915) and the S-extremely large magnetic elements (916) are arranged alternately on the large bracket (912); the N-extremely small magnetic elements (913) and the S-extremely small magnetic elements (914) on the small bracket (911) are arranged alternately. 4) There is no contact with the N large magnetic element (915) and the S large magnetic element (916) on the large bracket (912) and a gap is retained; the connecting rod (92) is arranged on the large bracket (912); the motor (90) works, the rotating shaft (901) and the small bracket (911) thereon rotate, and the N large magnetic element (915) and the S large magnetic element (916) on the small bracket (911) and the N large magnetic element (915) and the S large magnetic element (916) on the large bracket (912) rotate under the action of magnetic coupling, thereby causing the connecting rod (92) connected to the large bracket (912) to perform linear reciprocating motion; K and Q are both positive integers, and K≤Q.

2. The magnetic transmission tooth washer according to claim 1, characterized in that: The small bracket (911) is conical and is provided with a first strip protrusion (9119) having the same number as the N-th smallest magnetic element (913) and a second strip protrusion (9118) having the same number as the S-th smallest magnetic element (914); the N-th smallest magnetic element (913) is conical and is provided with a first strip groove (9139) adapted to the first strip protrusion (9119); the S-th smallest magnetic element (914) is also conical and is provided with a second strip groove (9148) adapted to the second strip protrusion (9118); the first strip groove (9139) of the N-th smallest magnetic element (913) is fixed to the first strip protrusion (9119) of the small bracket (911); and the second strip groove (9148) of the S-th smallest magnetic element (914) is fixed to the second strip protrusion (9118) of the small bracket (911); The N large magnetic elements (915) and the S large magnetic elements (916) are in the shape of tiles, and the large bracket (912) is provided with tile-shaped grooves (9129) that are equal in number to and compatible with the N large magnetic elements (915) and the S large magnetic elements (916). The N large magnetic elements (915) and the S large magnetic elements (916) are respectively fixed on the tile-shaped grooves (9129) of the large bracket (912).

3. The magnetic transmission tooth washer according to claim 1, characterized in that: The gap between the N-extremely small magnetic element (913) and the S-extremely small magnetic element (914) on the small bracket (911) and the N-extremely large magnetic element (915) and the S-extremely large magnetic element (916) on the large bracket (912) is between 0.1 and 0.4 millimeters.

4. The magnetic transmission tooth washer according to any one of claims 1 to 3, characterized in that: Q=4K.

5. The magnetic transmission tooth washer according to claim 4, characterized in that: The Q is 8 and K is 2.

6. A drive assembly for a tooth washer, comprising a motor (90), a transmission mechanism (91), and a connecting rod (92) connected to the transmission mechanism (91); characterized in that: The transmission mechanism (91) comprises a small bracket (911), a large bracket (912), K N-extremely small magnetic elements (913), K S-extremely small magnetic elements (914), Q N-extremely large magnetic elements (915) and Q S-extremely large magnetic elements (916); the N-extremely small magnetic elements (913) and the S-extremely small magnetic elements (914) are arranged alternately on the small bracket (911), and the small bracket (911) is fixed to the output end of the rotating shaft (901) of the motor (90); the N-extremely large magnetic elements (915) and the S-extremely large magnetic elements (916) are arranged alternately on the large bracket (912); the N-extremely small magnetic elements (913) and the S-extremely small magnetic elements (914) on the small bracket (911) are arranged alternately. 4) There is no contact with the N large magnetic element (915) and the S large magnetic element (916) on the large bracket (912) and a gap is retained; the connecting rod (92) is arranged on the large bracket (912); the motor (90) works, the rotating shaft (901) and the small bracket (911) thereon rotate, and the N large magnetic element (915) and the S large magnetic element (916) on the small bracket (911) and the N large magnetic element (915) and the S large magnetic element (916) on the large bracket (912) rotate under the action of magnetic coupling, thereby causing the connecting rod (92) connected to the large bracket (912) to perform linear reciprocating motion; K and Q are both positive integers, and K≤Q.

7. The drive assembly according to claim 6, characterized in that: The small bracket (911) is conical and is provided with a first strip protrusion (9119) having the same number as the N-th smallest magnetic element (913) and a second strip protrusion (9118) having the same number as the S-th smallest magnetic element (914); the N-th smallest magnetic element (913) is conical and is provided with a first strip groove (9139) adapted to the first strip protrusion (9119); the S-th smallest magnetic element (914) is also conical and is provided with a second strip groove (9148) adapted to the second strip protrusion (9118); the first strip groove (9139) of the N-th smallest magnetic element (913) is fixed to the first strip protrusion (9119) of the small bracket (911); and the second strip groove (9148) of the S-th smallest magnetic element (914) is fixed to the second strip protrusion (9118) of the small bracket (911); The N large magnetic elements (915) and the S large magnetic elements (916) are in the shape of tiles, and the large bracket (912) is provided with tile-shaped grooves (9129) that are equal in number to and compatible with the N large magnetic elements (915) and the S large magnetic elements (916). The N large magnetic elements (915) and the S large magnetic elements (916) are respectively fixed on the tile-shaped grooves (9129) of the large bracket (912).

8. The drive assembly according to claim 6, characterized in that: The gap between the N-extremely small magnetic element (913) and the S-extremely small magnetic element (914) on the small bracket (911) and the N-extremely large magnetic element (915) and the S-extremely large magnetic element (916) on the large bracket (912) is between 0.1 and 0.4 millimeters.

9. The drive assembly according to claim 6, characterized in that: Q=4K.

10. The drive assembly according to any one of claims 6 to 9, characterized in that: The adjacent N-large magnetic elements (915) and S-large magnetic elements (916) can be made into a whole.

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