CN217066657U

CN217066657U - Brushless outer rotor noninductive direct-drive type tooth flushing device

Info

Publication number: CN217066657U
Application number: CN202122941760.0U
Authority: CN
Inventors: 刘凌云; 李蒙
Original assignee: Shenzhen City Tt Motor Co ltd
Current assignee: Shenzhen City Tt Motor Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-07-29
Anticipated expiration: 2031-11-27

Abstract

The utility model particularly discloses a brushless external rotor noninductive direct-drive type tooth flusher, which comprises a tooth flusher main body, a nozzle component which can be detachably arranged above the tooth flusher main body and a water tank component which is embedded below the tooth flusher main body; the tooth flushing device main body comprises a machine body assembly, a pump body assembly and a driving assembly, wherein the machine body assembly comprises an upper cover, a middle cover and a lower cover which are detachably connected with each other, a first sealing ring is arranged between the upper cover and the middle cover, a second sealing ring is arranged between the middle cover and the lower cover, the lower cover is provided with an accommodating cavity, a third sealing ring is arranged between the pump body assembly and the middle cover, and the driving assembly is connected with the pump body assembly; the nozzle assembly is connected with the pump body assembly. The waterproof effect of the machine body assembly is improved by arranging the first sealing ring and the second sealing ring; utilize the third sealing washer to seal the clearance between pump body subassembly and the well lid simultaneously, prevent that external water from getting into in the pump body subassembly via the clearance between well lid and the pump body subassembly, promoted the waterproof performance of towards tooth ware.

Description

Brushless outer rotor noninductive direct-drive type tooth flushing device

Technical Field

The utility model relates to a towards tooth ware technical field, concretely relates to brushless external rotor noninductive type directly drives tooth ware.

Background

The tooth flushing device can clean places such as tooth gaps, gingival sulcus and the like where toothbrushes are difficult to clean. The tooth washing device body comprises a water pump which generates high-pressure and pulse water flow and sprays out from a nozzle, so that food residues, harmful bacteria and tartar in slits between teeth and gingival sulcus are cleaned, and the oral cavity health care and nursing are achieved. Because the tooth flusher is easy to damp and lose efficacy when being used in a bathroom, and because the tooth flusher is provided with the water tank, but the existing tooth flusher is unreasonable in structural design, in the process of adding water into the tooth flusher, the external water can enter the inner cavity of the tooth flusher through the machine body of the tooth flusher due to the poor waterproof effect of the machine body; in addition, the connection between the body part and the pump body is easy to cause the problems of water leakage, water immersion, tooth flushing device failure and the like, and the requirements of users cannot be met and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a brushless external rotor noninductive direct drive type towards tooth ware is provided, promotes the waterproof performance towards tooth ware, reduces because of the outside water gets into towards the inside risk that leads to towards tooth ware to damage of tooth ware.

A brushless outer rotor noninductive direct-drive type tooth flushing device comprises:

the tooth flushing device comprises a tooth flushing device body, wherein the tooth flushing device body comprises a machine body assembly, a pump body assembly and a driving assembly, the machine body assembly comprises an upper cover, a middle cover and a lower cover which are detachably connected with each other, a first sealing ring is arranged between the upper cover and the middle cover, a second sealing ring is arranged between the middle cover and the lower cover, the lower cover is provided with an accommodating cavity, the pump body assembly and the driving assembly are both arranged in the accommodating cavity, a third sealing ring is arranged between the pump body assembly and the middle cover, and the driving assembly is connected with the pump body assembly;

the nozzle assembly is detachably arranged above the tooth flushing device main body and is connected with the pump body assembly;

and the water tank component is embedded below the tooth flushing device main body.

Further, the nozzle assembly comprises a hose and a water inlet joint arranged at the lower end of the hose, and at least one fourth sealing ring is sleeved at the lower end of the water inlet joint.

Further, a damping piece is arranged between the lower end of the pump body assembly and the contact end face of the lower cover.

Furthermore, the shock-absorbing piece is EVA bubble cotton, and the cotton four sides of EVA bubble all are provided with flange structure.

Further, a vibration damping pad is arranged between the upper end of the pump body assembly and the contact end face of the middle cover.

Further, the driving assembly comprises a brushless motor, an eccentric shaft connected with the brushless motor and a connecting rod connected with the eccentric shaft, the connecting rod is connected with the pump body assembly, and the eccentric shaft, the connecting rod and the pump body assembly form a crank-connecting rod mechanism.

Further, the water tank assembly comprises a water tank main body with a water inlet and a water tank cover arranged at the water inlet, a fifth sealing ring is arranged between the water tank main body and the lower cover, and a sixth sealing ring is arranged between the water tank cover and the water inlet.

Further, the lower cover is provided with an exhaust hole, and the exhaust hole is communicated with the outside through the inner side of the fifth sealing ring.

Furthermore, the lower cover is provided with a soft rubber key, and the soft rubber key and the lower cover are of an integrated structure.

Further, a seventh sealing ring is arranged between the pump body assembly and the nozzle assembly

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a first sealing ring is arranged between the upper cover and the middle cover in the machine body component, a second sealing ring is arranged between the middle cover and the lower cover, and the waterproof effect of the machine body component is improved by arranging the first sealing ring and the second sealing ring; simultaneously be provided with the third sealing washer between pump body subassembly and well lid, utilize the third sealing washer to seal the clearance between pump body subassembly and the well lid, prevent that external water from getting into pump body subassembly via the clearance between well lid and the pump body subassembly in, promoted the waterproof performance of towards the tooth ware, reduce because of the risk that external water gets into to lead to towards the tooth ware and damage towards the tooth ware inside.

Drawings

Fig. 1 is a schematic overall structure diagram of a brushless outer rotor non-inductive direct-drive type tooth flushing device provided by the present application.

Fig. 2 is an exploded view of the tooth irrigator body provided by the present application.

Fig. 3 is a cross-sectional view of an outer rotor brushless motor provided in the present application.

FIG. 4 is a partial cross-sectional view of a jet stack assembly and a fuselage assembly provided herein.

FIG. 5 is a partial cross-sectional view of the body assembly and water tank assembly provided herein.

Fig. 6 is a partial cross-sectional view of a soft glue button and a lower cover provided by the present application.

Fig. 7 is a partial structural schematic diagram of the lower cover provided in the present application.

Fig. 8 is a schematic structural diagram of a driving assembly provided in the present application.

Description of reference numerals:

1. a nozzle assembly; 10. a hose; 11. a water inlet joint;

2. a water tank assembly; 20. a water tank main body; 21. a water tank cover; 22. a water tank bottom cover;

3. a fuselage assembly; 30. an upper cover; 31. a middle cover; 32. a lower cover; 33. a soft rubber key; 320. an exhaust hole;

4. a pump body assembly; 46. a first rolling bearing; 47. a second rolling bearing; 48. a third rolling bearing;

5. a drive assembly; 50. a brushless motor; 51. an eccentric shaft; 52. a connecting rod;

6. a first seal ring; 7. a second seal ring; 8. a third seal ring; 9. a fourth seal ring; 13. a fifth seal ring; 14. a sixth seal ring; 15. a seventh seal ring; 16. a shock absorbing member; 17. a vibration damping pad.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1-8, a brushless external rotor non-inductive direct drive type tooth flusher comprises a tooth flusher main body, a nozzle assembly 1 detachably arranged above the tooth flusher main body, and a water tank assembly 2 embedded below the tooth flusher main body; the tooth flushing device main body comprises a machine body component 3, a pump body component 4 and a driving component 5, the machine body component 3 comprises an upper cover 30, a middle cover 31 and a lower cover 32 which are detachably connected with each other, a first sealing ring 6 is arranged between the upper cover 30 and the middle cover 31, a second sealing ring 7 is arranged between the middle cover 31 and the lower cover 32, an accommodating cavity is formed in the lower cover 32, the pump body component 4 and the driving component 5 are both arranged in the accommodating cavity, a third sealing ring 8 is arranged between the pump body component 4 and the middle cover 31, and the driving component 5 is connected with the pump body component 4; the nozzle assembly 1 is connected with the pump body assembly 4.

In the brushless outer rotor non-inductive direct-drive tooth flushing device provided by the embodiment, the first sealing ring 6 is arranged between the upper cover 30 and the middle cover 31 in the machine body assembly, the second sealing ring 7 is arranged between the middle cover 31 and the lower cover 32, and the waterproof effect of the machine body assembly 3 is improved by arranging the first sealing ring 6 and the second sealing ring 7; simultaneously be provided with third sealing washer 8 between pump body subassembly 4 and well lid 31, utilize third sealing washer 8 to seal the clearance between pump body subassembly 4 and the well lid 31, prevent that external water from getting into pump body subassembly 4 via the clearance between well lid 3 and the pump body subassembly 4 in, promoted the waterproof performance of towards the tooth ware, reduce because of the risk that external water gets into to lead to towards the tooth ware and damage towards the tooth ware.

Next, each waterproof portion in the brushless outer rotor non-inductive direct drive type water toothpick provided in the present embodiment will be described.

As shown in fig. 3, 4 and 5, the nozzle assembly 1 includes a hose 10 and a water inlet connector 12 disposed at a lower end of the hose 11, wherein a caulking groove is disposed at a lower end of the water inlet connector 12, and at least one fourth sealing ring 9 is installed in the caulking groove. The water tank assembly 2 comprises a water tank main body 20 with a water inlet and a water tank cover 21 arranged at the water inlet, a fifth sealing ring 13 is arranged between the water tank main body 20 and the lower cover 32, the fifth sealing ring 13 is used for sealing a gap between the water tank main body 20 and the lower cover 32, a sixth sealing ring 14 is arranged between the water tank cover 21 and the water inlet, and the sixth sealing ring 14 is used for sealing a gap between the water tank cover 21 and the water inlet; the bottom of the water tank main body 20 is provided with a water tank bottom cover 22, and the water tank bottom cover 22 and the water tank main body 20 are connected in an ultrasonic welding mode, so that a waterproof effect is achieved. The lower cover 32 is provided with a soft rubber key 33, the soft rubber key 33 is made of soft rubber TPU, and the soft rubber key 33 and the lower cover 32 are integrally structured in an injection molding mode, so that a waterproof effect is achieved. A seventh sealing ring 15 is arranged between the pump body assembly 4 and the nozzle assembly 1, and the seventh sealing ring 15 is used for sealing a gap between the pump body assembly 4 and the nozzle assembly 1.

The first seal ring 6, the second seal ring 7, the third seal ring 8, the fourth seal ring 9, the fifth seal ring 13, the sixth seal ring 14 and the seventh seal ring 15 are all made of nitrile rubber or fluororubber.

Next, a description will be given of a vibration reduction portion in the brushless outer rotor sensorless direct drive type tooth irrigator provided in the present embodiment.

As shown in fig. 6, a damper 16 is provided between the lower end of the pump block assembly 4 and the contact end surface of the lower cap 32. For example, the damping piece 16 is EVA foam, and the four sides of the EVA foam are provided with flanging structures, so that vibration reduction in two directions of the pump body assembly 4 is realized, and the vibration reduction effect is improved. A vibration damping pad 17 is arranged between the upper end of the pump body assembly 4 and the contact end face of the middle cover 31, and vibration damping in the axial direction of the pump body assembly 4 is realized by arranging the vibration damping pad 17. A third sealing ring 8 is arranged between the pump body assembly 4 and the middle cover 31, and the third sealing ring 8 not only has a waterproof function, but also can realize a vibration damping function. Through setting up damping pad 17 and EVA bubble cotton, reduced the vibration of towards tooth ware for user's handheld operation is more comfortable, has promoted user's experience and has felt. It should be understood that in other embodiments, a damping member made of silicone or rubber may be used instead of the damping pad and the EVA foam.

As shown in fig. 7, in order to extract water in the water tank assembly from the water flushing device main body, the lower cover 32 is provided with an exhaust hole 320, and the exhaust hole 320 is communicated with the outside through the inner side of the fifth sealing ring 13, so as to ensure that the air pressure inside and outside the water tank assembly 2 is equal.

The existing traditional tooth flushing device usually uses a direct current brush motor, and drives a pump body to pump water through a connecting rod by reducing speed through a gear, so that the traditional tooth flushing device has the defects of short service life of the motor, high gear transmission noise, large volume and the like. In order to solve the above problems in the prior art, as shown in fig. 8, the driving assembly 5 provided in this embodiment includes a brushless motor 50, an eccentric shaft 51 connected to the brushless motor 50, and a connecting rod 52 connected to the eccentric shaft 51, the connecting rod 52 is connected to the pump body assembly 4, the eccentric shaft 51, the connecting rod 52, and the pump body assembly 4 form a crank-connecting rod mechanism, the brushless motor 50 drives the eccentric shaft 51 to rotate, and the connecting rod 52 drives the pump body assembly 4 to make a reciprocating linear motion, so as to achieve water pumping. By adopting the structure, the gear is eliminated, and the structure has the advantages of small volume and low noise, thereby prolonging the service life of the product.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a brushless outer rotor noninductive direct drive type towards tooth ware which characterized in that includes:

2. The brushless external rotor noninductive direct-drive type tooth flushing device as claimed in claim 1, wherein the nozzle assembly comprises a hose and a water inlet joint arranged at the lower end of the hose, and at least one fourth sealing ring is sleeved at the lower end of the water inlet joint.

3. The brushless external rotor noninductive direct-drive type tooth flushing device according to claim 1, wherein a shock absorption member is arranged between the lower end of the pump body assembly and the contact end surface of the lower cover.

4. The brushless outer rotor noninductive direct-drive type tooth flushing device according to claim 3, wherein the shock absorbing member is EVA foam, and four edges of the EVA foam are provided with flanging structures.

5. The brushless external rotor noninductive direct-drive type tooth flushing device according to claim 1, wherein a vibration damping pad is arranged between the upper end of the pump body assembly and the contact end surface of the middle cover.

6. The brushless external rotor noninductive direct-drive type tooth flusher according to claim 1, wherein the driving assembly comprises a brushless motor, an eccentric shaft connected with the brushless motor and a connecting rod connected with the eccentric shaft, the connecting rod is connected with the pump body assembly, and the eccentric shaft, the connecting rod and the pump body assembly form a crank-connecting rod mechanism.

7. The brushless external rotor noninductive direct-drive type tooth flushing device according to claim 1, wherein the water tank assembly comprises a water tank main body with a water inlet and a water tank cover arranged at the water inlet, a fifth sealing ring is arranged between the water tank main body and the lower cover, and a sixth sealing ring is arranged between the water tank cover and the water inlet.

8. The brushless external rotor noninductive direct-drive type tooth flushing device according to claim 7, wherein the lower cover is provided with an exhaust hole which is communicated with the outside through the inner side of the fifth sealing ring.

9. The brushless outer rotor non-inductive direct-drive type tooth flushing device as claimed in claim 1, wherein the lower cover is provided with a soft rubber key, and the soft rubber key and the lower cover are of an integrated structure.

10. The brushless external rotor noninductive direct-drive type tooth flushing device according to claim 1, wherein a seventh sealing ring is arranged between the pump body assembly and the nozzle assembly.