CN117959022A - Tooth-flushing device core and tooth-flushing device - Google Patents

Abstract

The invention discloses a tooth-flushing device core and a tooth-flushing device, comprising a bracket, wherein a power device and a pump body structure connected with the power device in a transmission way are arranged in the bracket, the output end of the power device is provided with a transmission structure used for driving a piston assembly to do reciprocating motion in a pump cylinder, the transmission structure comprises a driving wheel, a driven wheel, a first driving wheel meshed with the driving wheel, a second driving wheel meshed with the driven wheel and a driving rod, an optical axis is fixedly arranged on the first driving wheel, and the second driving wheel is arranged on the optical axis and synchronously rotates along with the first driven wheel. According to the invention, the gear rotating speed is reduced through the multi-stage gear meshed transmission structure, the noise generated by gear meshing impact is reduced, the double-layer sealing of the piston and the pump cylinder improves the sealing performance, the friction noise during working is reduced, the noise level is greatly reduced during working of the tooth-cleaning machine core through the mutual matching of the design points, and the user experience is improved.

Description

Tooth-flushing device core and tooth-flushing device

Technical Field

The invention relates to the technical field of tooth flushers, in particular to a tooth flusher core and a tooth flusher.

Background

The tooth cleaning and health-care equipment uses a water pump driven by a motor to produce strong pulse water flow to impact the surface of teeth so as to remove the dirt such as food, dental plaque and the like remained on the tooth surface, thereby achieving the effect of cleaning the teeth and keeping the oral hygiene. The working principle of the tooth flushing device is that the motor outputs torque, the piston is driven by the transmission mechanism to do high-speed reciprocating motion in the pump body, the internal volume of the pump body can generate intermittent change, negative pressure is formed to suck water in the water tank into the pump body, then the water is ejected from the nozzle in a powerful water flow mode, and the tooth flushing is aimed at, so that the cleaning function is completed. Compared with the traditional toothbrush, the powerful pulse water flow of the tooth washer can penetrate into tooth gaps, remove dirt which cannot be brushed by the toothbrush, and ensure tooth sanitation.

The transmission structure adopted by the tooth flushing device in the prior art is usually that a motor output shaft drives a pinion, then a large disc-shaped gear is driven to rotate at a high speed through gear engagement, and the large gear drives a piston to reciprocate in a pump body through a connecting rod mechanism, so that the volume of an inner cavity of the pump body is changed, and the functions of pumping water and spraying water are realized. The structure has certain defects, such as that the structure that the pinion drives the large disc-shaped gear occupies larger mechanical space, so that the water pump and the whole tooth washer have larger volume, and the carrying and the use of users are inconvenient. When the large disc-shaped gear rotates at a high speed, larger noise and machine body vibration can be generated, the use experience of a user is seriously affected, and the user can easily misuse the large disc-shaped gear as a product to generate faults. The Chinese patent ZL201921881283.X achieves a certain noise reduction effect by arranging the sound absorbing cotton, but the noise of the whole machine is still larger. Because the tooth flusher has high noise, bad experience can be brought to a user in the use process, and the user can easily misunderstand that a product has faults to bring out complaints.

In summary, the whole transmission structure of the current tooth-rinsing device has the problems of large volume, large noise, inconvenient carrying and the like, can not meet the comfort requirement of users, and needs to comprehensively optimize the transmission structure to realize miniaturization and low noise, thereby improving the user experience.

Disclosure of Invention

The invention provides a tooth-flushing device core and a tooth-flushing device, which aim to solve the problem of loud noise of the tooth-flushing device in the working process in the prior art.

In order to achieve the above purpose, the invention provides a tooth-cleaning machine core, which comprises a bracket, wherein a power device and a pump body structure in transmission connection with the power device are arranged in the bracket, the pump body structure comprises a pump cylinder and a piston assembly arranged in the pump cylinder, the end part of the pump cylinder is provided with a water outlet mounting counter bore, and the side wall of the pump cylinder is provided with a water inlet mounting counter bore;

The output end of the power device is provided with a transmission structure for driving the piston assembly to reciprocate in the pump cylinder, the transmission structure comprises a driving wheel, a driven wheel, a first transmission wheel meshed with the driving wheel, a second transmission wheel meshed with the driven wheel and a driving rod, an optical axis is fixedly arranged on the first transmission wheel, the second transmission wheel is arranged on the optical axis and synchronously rotates along with the first driven wheel, one end of the driving rod is sleeved on the driven wheel, and the other end of the driving rod is fixedly connected with the piston assembly.

Further, the support comprises a first support and a second support which are detachably connected, and an installation cavity matched with the transmission structure is formed in the first support.

Further, the first driving wheel and the second driving wheel are integrally formed, a mounting hole for mounting an optical axis is formed in the mounting cavity, one end of the optical axis sequentially penetrates through the first driving wheel and the second driving wheel to be fixed in the mounting hole, and the other end of the optical axis is fixed in the second bracket.

Further, the first driving wheel and the optical axis are integrally formed, and the optical axis is in interference fit with the second driving wheel.

Further, the piston assembly comprises a piston head and a piston rod part movably connected with the piston head, the piston head is provided with a first leakage-proof sealing ring, the side wall of the piston rod part is provided with a mounting annular groove, a second leakage-proof sealing ring is arranged in the mounting annular groove, and the first leakage-proof sealing ring and the second leakage-proof sealing ring are in airtight sliding connection with the pump cylinder.

Further, a first movement cavity is formed at one end of the piston head part corresponding to the water outlet installation counter bore of the pump cylinder, a second movement cavity is formed at one end of the piston head part corresponding to the second sealing ring of the pump cylinder, and the first movement cavity is communicated with the water inlet installation counter bore and the water outlet installation counter bore.

Further, the side wall of the pump cylinder is provided with a water leakage hole, and the second movement cavity is always communicated with the water leakage hole in the movement process.

Further, the water outlet installation counter bore can be dismantled fixedly connected with water outlet mechanism, water outlet mechanism include go out the water connecting piece and set up in go out the inside duckbill valve of water connecting piece, the water inlet installation counter bore can be dismantled fixedly connected with water inlet mechanism, water inlet mechanism including water inlet joint and set up in the inside one-way valve block of water inlet joint, the pump jar passes through the piston assembly is in reciprocating motion control one-way valve block's opening and shutting in the pump jar.

In another aspect, there is provided a dental impactor comprising a dental impactor core according to any one of the preceding claims and a nozzle assembly removably fixedly connected thereto.

Further, the nozzle assembly includes a nozzle base and a nozzle removably and fixedly connected thereto.

The invention has the beneficial effects that: the gear rotating speed is reduced through the transmission structure of multi-stage gear engagement, noise generated by gear engagement impact is reduced, sealing performance is improved through double-layer sealing of the piston and the pump cylinder, friction noise during operation is reduced, and through mutual cooperation of the design points, noise level during operation of the tooth washer core is greatly reduced, and user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an explosion structure of a first embodiment of the present invention;

FIG. 2 is a schematic perspective view of a fourth embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the nozzle assembly of the present invention;

fig. 4 is a cross-sectional view of a fourth embodiment of the present invention.

In the figure: 1. a bracket; 11. a transmission structure; 111. a driving wheel; 112. a first driving wheel; 113. a second driving wheel; 114. driven wheel; 115. an optical axis; 12. a first bracket; 121. a mounting cavity; 13. a second bracket; 2. a pump body structure; 21. a pump cylinder; 211. a counter bore is arranged on the effluent; 212. a counter bore is arranged in the water inlet; 22. a piston assembly; 221. a piston head; 222. a piston rod portion; 2211. a first leak-proof seal ring; 2212. a second leak-proof seal ring; 23. a water outlet mechanism; 231. a water outlet connector; 232. a duckbill valve; 24. a water inlet structure; 241. a water inlet joint; 242. a one-way valve plate; 25. a first motion cavity; 26. a second motion cavity; 27. a water leakage hole; 28. a water leakage silicone tube; 3. a nozzle assembly; 31. a nozzle base; 32. a nozzle head.

Detailed Description

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "fixedly connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be directly connected or indirectly connected through an intermediary unless explicitly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The tooth cleaning device is used as a popular oral cavity cleaning and health-care device, the working principle of the tooth cleaning and health-care device is that the torque output by a motor is utilized, a piston of a water pump is driven by a transmission structure to do high-speed reciprocating motion in a pump body, so that the volume of an inner cavity of the pump body is periodically changed, negative pressure is formed to suck water in a water storage tank into the pump body, then the negative pressure is converted into positive pressure to spray the water out of a nozzle in a form of powerful water flow, the water is aligned to the tooth surface to impact, and the dirt such as food residues, dental plaque and the like remained on the tooth surface is removed through mechanical impact, so that the purposes of cleaning and health are achieved. Compared with the traditional toothbrush, the impact force and the cleaning depth of the pulse water flow of the tooth flusher are better, and dirt which cannot be contacted by the toothbrush can be cleared away by penetrating into the tooth gaps.

The core mechanism of the main-stream tooth-washing machine product at present mainly comprises three parts of a motor, a transmission structure and a water pump. The transmission structure of many products adopts a mode that a pinion drives a large disc-shaped gear, and then a connecting rod mechanism drives a piston to reciprocate in a pump body at a high speed. The structure can truly realize the functions of pumping water and spraying water, but has certain defects including but not limited to large volume, loud noise, inconvenient carrying and use and the like, and cannot provide comfortable and smooth use experience for users. Particularly, when the large disc rotates at a high speed, very large running noise and vibration are generated, the use comfort is seriously affected, and a user can easily misunderstand that the large disc is a product. Some products reduce noise by means of sound absorption and the like, and a certain effect is obtained, but the overall noise is still larger, so that users feel uncomfortable when using the products, and the impression of the products is poor. The traditional structure is difficult to meet the comfort requirement of a user in use, and redesign and structural optimization of the transmission mechanism are needed, so that the tooth-rinsing machine core can be miniaturized and noise-reduced, and the user experience is truly improved. The application adopts various improvement measures on the structure design of the movement. For example, the two-part bracket structure makes the movement easier to disassemble and assemble; multi-stage meshing gear transmission to reduce noise; double-layer sealing is realized between the piston and the pump body so as to reduce friction noise and the like during operation. Through the comprehensive application of the structural design points, the working noise of the product is greatly reduced, more comfortable use experience is brought to users, and the product quality is greatly improved. In general, the tooth-flushing device core of the application breaks through in structural design, and the performance index is obviously superior to that of the existing similar products.

The present invention will be further described and illustrated with reference to specific embodiments and drawings.

An embodiment one, this embodiment provides a tooth-cleaning machine core, including support 1, support 1 is inside to be provided with power device and the pump body structure 2 who is connected with it transmission, power device and power electric connection, in this embodiment, power device is small-size electric motor, and electric motor passes through binding post and rechargeable battery's positive negative pole electric connection, and rechargeable battery provides working current for electric motor. The pump body structure 2 comprises a cylindrical pump cylinder 21 and a piston assembly 22 arranged in the pump cylinder 21, a water outlet installation counter bore 211 for installing a water outlet mechanism 23 is arranged at the end part of the pump cylinder 21, and a water inlet installation counter bore 212 for installing a water inlet structure 24 is arranged on the side wall of the pump cylinder 21.

The piston assembly 22 is composed of a piston head 221 at the front end and a piston rod 222 movably connected to the piston head. An annular first leakage-proof seal ring 2211 made of rubber material is fixedly arranged on the outer circumferential surface of the piston head 221 so as to increase the contact pressure with the inner wall of the pump cylinder 21. Meanwhile, a ring of annular mounting grooves are formed in the middle section of the side wall of the piston rod portion 222. The second leakage-proof sealing ring 2212 is embedded in the groove, and the second leakage-proof sealing ring 2212 is made of rubber. The outermost diameter of the second leakage-proof seal ring 2212 is slightly larger than the inner diameter of the pump cylinder 21, so that air tightness is ensured. When the power device drives the transmission mechanism to operate, the piston assembly 22 is pushed to slide back and forth in the pump cylinder 21, and at this time, the first leakage-proof sealing ring 2211 and the second leakage-proof sealing ring 2212 are always in contact fit with the inner wall of the pump cylinder 21, slide in an airtight friction state, and prevent liquid in the pump cylinder 21 from leaking.

The piston head 221 divides the internal space of the pump cylinder 21 into two independent cavities, one end of the piston head 221 corresponding to the water outlet mounting counter bore 211 of the pump cylinder 21 forms a first movement cavity 25, and one end of the piston head 221 corresponding to the second sealing ring of the pump cylinder 21 forms a second movement cavity 26. The water inlet mounting counterbore 212 and the water outlet mounting counterbore 211 are both communicated with the first moving chamber 25, and the volumes of the first moving chamber 25 and the second moving chamber 26 are changed along with the reciprocating motion of the piston. It is contemplated that during prolonged use, there may be a small amount of water entering the second motion chamber 26 in the fit gap between the piston rod and the pump cylinder 21. If the water cannot be discharged in time, accumulated water can influence the reciprocating motion of the piston, and even the sealing ring can be damaged. Therefore, a water leakage hole 27 is formed in the side wall of the pump cylinder 21 and is always communicated with the second movement cavity 26, a water leakage silicone tube 28 is connected to the water leakage hole 27, a water leakage tube joint is connected to the tail end of the water leakage silicone tube 28, and liquid permeated into the second movement cavity 26 is discharged outwards through the water leakage hole 27 and the water leakage silicone tube 28.

The water outlet mechanism 23 is detachably and fixedly arranged at the water outlet mounting counter bore 211, the water outlet mechanism 23 comprises a water outlet connecting piece 231 and a duckbill valve 232 which is arranged in the water outlet connecting piece 231 and only allows water to pass through unidirectionally, the water inlet mechanism 24 is detachably and fixedly arranged at the water inlet mounting counter bore 212, the water inlet mechanism 24 comprises a water inlet joint 241 and a unidirectional valve plate 242 which is arranged in the water inlet joint 241, and the pump cylinder 21 performs reciprocating motion in the pump cylinder 21 through the piston assembly 22 to control the opening and closing of the unidirectional valve plate 242.

The output shaft of the electric motor drives the piston assembly 22 to reciprocate in the pump cylinder 21 through the transmission structure 11, the transmission structure 11 specifically comprises a driving wheel 111 arranged on the output shaft of the electric motor, a first driving wheel 112 meshed with the driving wheel 111, an optical axis 115 is fixedly arranged on the first driving wheel 112, a second driving wheel 113 is arranged on the optical axis 115 and synchronously rotates along with the first driving wheel 112, the second driving wheel 113 is meshed with the driven wheel 114, one end of a driving rod 115 is sleeved on the driven wheel 114, and the other end of the driving rod 115 is fixedly connected with the piston rod part 222.

When the power device is started, the piston assembly 22 is driven to reciprocate through the transmission structure 11, and the volume of the first movement cavity 25 changes periodically. When the volume of the first movement cavity 25 increases, the check valve plate 242 is opened, and water in the external water tank is sucked into the pump cylinder 21; as the volume of the first motion chamber 25 decreases, water is forced out of the pump cylinder 21 through the duckbill valve 232.

Example two

The first difference between the present embodiment and the embodiment is that the bracket 1 is detachably assembled by the first bracket 12 and the second bracket 13 through the way of fastening and connecting by bolts. The first bracket 12 is internally provided with a mounting cavity 121 which is matched with the size of the transmission structure 11. A circular mounting hole is formed in the mounting cavity 121 for mounting the optical axis 115 in the transmission structure 11. The driving wheel 111 is fixed to an output shaft of the electric motor, and the first driving wheel 112 engages with the driving wheel 111 and is fixed to one end of the optical axis 115. The second driving wheel 113 and the first driving wheel 112 are integrally molded by injection molding, an optical axis 115 sequentially passes through shaft holes of the second driving wheel 113 and the first driving wheel 112 to be arranged in an optical axis 115 mounting hole, the driven wheel 114 is meshed with the second driving wheel 113 by a gear, and one end of a connecting rod is hinged in an eccentric hole of the driven wheel 114. In the specific assembly, the first driving wheel 112 and the second driving wheel 113 sequentially pass through the optical axis 115, and then the left end of the optical axis 115 is inserted into the mounting hole of the first bracket 12. The right end of the optical axis 115 passes through and is fixed in the second bracket 13. When the electric motor is started, the output shaft of the electric motor drives the driving wheel 111 to rotate, the driving wheel 111 drives the first driving wheel 112 and the second driving wheel 113 to synchronously rotate, the second driving wheel 113 drives the driven wheel 114 to rotate, and the driven wheel 114 drives the piston assembly 22 to reciprocate in the pump cylinder 21 through the connecting rod, so that the water absorbing and spraying functions are completed. The multi-stage gear transmission structure 11 with the pinion driving the large gear plays a role in reducing speed, tooth surface meshing is stable and precise, and vibration and noise during high-speed transmission of the gear can be greatly reduced.

Example III

The second difference between the present embodiment and the second embodiment is that the optical axis 115 and the first driving wheel 112 are integrally formed, and the driving wheel 111 drives the first driving wheel 112 to rotate, so as to drive the integrally formed optical axis 115 to rotate. The second driving wheel 113 is in interference fit with the optical axis 115, and can synchronously rotate under the driving of the optical axis 115. The driven wheel 114 rotates along with the second driving wheel 113 in a meshed manner, and drives the connecting rod through the eccentric wheel structure, so that the piston assembly 22 is pushed to reciprocate in the pump body, and water absorption and injection work is completed.

Example IV

The present embodiment provides a dental irrigator comprising a dental irrigator cartridge of any of the embodiments described above and a nozzle assembly 3. The nozzle assembly 3 comprises a nozzle base 31 and a nozzle head 32, which are detachably connected by threads. The nozzle base 31 is made of metal, and is internally provided with a corrugated water flow channel which is matched with the shape of the water outlet mounting counter bore 211 of the tooth flushing device core. An internal thread is provided at the end of the nozzle base 31 remote from the movement for mounting the nozzle head 32. The side of the nozzle head 32 away from the nozzle base 31 is provided with a water outlet. A nozzle decorative ring is also provided on the outside of the nozzle head 32.

When the tooth irrigator works, liquid enters the pump cylinder 21 under the suction action of the tooth irrigator core. The piston in the pump cylinder 21 reciprocates at a high speed under the drive of the power device and the transmission device, and after energy storage, the piston is sprayed out through the nozzle assembly 3 to form high-pressure water flow. Through the rectification and diameter reduction of the corrugated flow passage in the nozzle base 31 and the focusing of the nozzle head 32, the diameter of the high-pressure water column is rapidly reduced, and the pressure and the speed are greatly improved, so that the excellent flushing effect is obtained. The nozzle assembly 3 is designed to be detachable, so that the cleaning and replacement are convenient. Meanwhile, due to the corrugated inner cavity design, water flow disturbance can be reduced to the greatest extent, fluid resistance is reduced, and water outlet efficiency is improved.

The above describes a tooth-rinsing machine core and a tooth-rinsing machine provided by the invention in detail, and specific examples are applied to the description of the principle and the implementation mode of the invention, and the description of the examples is only used for helping to understand the core idea of the invention; also, as will be apparent to those skilled in the art in light of the present teachings, the present disclosure should not be limited to the specific embodiments and applications described herein.

Claims (10)

1. The tooth washer movement is characterized by comprising a bracket, wherein a power device and a pump body structure in transmission connection with the power device are arranged in the bracket, the pump body structure comprises a pump cylinder and a piston assembly arranged in the pump cylinder, a water outlet installation counter bore is formed in the end part of the pump cylinder, and a water inlet installation counter bore is formed in the side wall of the pump cylinder;

The output end of the power device is provided with a transmission structure for driving the piston assembly to reciprocate in the pump cylinder, the transmission structure comprises a driving wheel, a driven wheel, a first transmission wheel meshed with the driving wheel, a second transmission wheel meshed with the driven wheel and a driving rod, an optical axis is fixedly arranged on the first transmission wheel, the second transmission wheel is arranged on the optical axis and synchronously rotates along with the first driven wheel, one end of the driving rod is sleeved on the driven wheel, and the other end of the driving rod is fixedly connected with the piston assembly.

2. The dental impactor core according to claim 1, wherein the bracket comprises a first bracket and a second bracket detachably connected, and wherein a mounting cavity adapted to the transmission structure is formed in the first bracket.

3. The tooth-rinsing machine core according to claim 2, wherein the first driving wheel and the second driving wheel are integrally formed, a mounting hole for mounting an optical axis is formed in the mounting cavity, one end of the optical axis sequentially penetrates through the first driving wheel and the second driving wheel to be fixed in the mounting hole, and the other end of the optical axis is fixed in the second bracket.

4. The dental impactor core according to claim 2, wherein the first driving wheel is integrally formed with the optical axis, and the optical axis is in interference fit with the second driving wheel.

5. The tooth punch movement of claim 1, wherein the piston assembly comprises a piston head and a piston rod movably connected with the piston head, the piston head is provided with a first leakage-proof sealing ring, a mounting ring groove is formed in the side wall of the piston rod, a second leakage-proof sealing ring is arranged in the mounting ring groove, and the first leakage-proof sealing ring and the second leakage-proof sealing ring are in airtight sliding connection with the pump cylinder.

6. The dental impactor core according to claim 5, wherein the piston head and the pump cylinder form a first moving cavity at one end corresponding to the water outlet mounting counterbore, the piston head and the pump cylinder form a second moving cavity at one end corresponding to the second seal ring, and the first moving cavity is in communication with the water inlet mounting counterbore and the water outlet mounting counterbore.

7. The tooth punch movement of claim 6, wherein the side wall of the pump cylinder is provided with a water leakage hole, and the second movement cavity is always communicated with the water leakage hole in the movement process.

8. The tooth punch movement of claim 7, wherein the water outlet mounting counter bore is detachably and fixedly connected with a water outlet mechanism, the water outlet mechanism comprises a water outlet connecting piece and a duckbill valve arranged in the water outlet connecting piece, the water inlet mounting counter bore is detachably and fixedly connected with a water inlet mechanism, the water inlet mechanism comprises a water inlet joint and a one-way valve plate arranged in the water inlet joint, and the pump cylinder performs reciprocating motion in the pump cylinder through the piston assembly to control the opening and closing of the one-way valve plate.

9. A dental irrigator comprising a dental irrigator cartridge according to any one of claims 1 to 8 and a nozzle assembly removably and fixedly connected thereto.

10. The dental irrigator of claim 9 wherein the nozzle assembly includes a nozzle base and a nozzle removably and fixedly attached thereto.