CN220487836U - Water pump structure of tooth flushing device and tooth flushing device - Google Patents

Abstract

The application provides a water pump structure of a tooth flushing device and the tooth flushing device; the water pump structure comprises a pump body, a metal sleeve, a piston head, a piston, a sealing ring and a driving assembly; the metal sleeve is arranged on the inner wall of the pump body; the sealing ring is sleeved on the side edge of the piston head; the piston is arranged at the end part of the piston head; the surface of the piston is provided with an annular protruding part; the sealing ring and the protruding part are respectively connected with the inner wall of the metal sleeve in a sliding way; the end of the piston head away from the piston is connected with the driving assembly; the driving assembly drives the piston head, the piston sealing ring and the piston to reciprocate along the inner cavity of the metal sleeve. The sealing ring and the bulge not only have good sealing performance, but also have smaller friction resistance with the metal sleeve, and can effectively reduce the noise emitted by the tooth washer in the use process.

Description

Water pump structure of tooth flushing device and tooth flushing device

Technical Field

The application relates to the technical field of tooth flushers, in particular to a water pump structure of a tooth flusher and the tooth flusher.

Background

With advances in science and technology and advances in socioeconomic performance, oral care has received increased attention from consumers. Electric toothbrushes and tooth-rinsing devices are commonly used automatic oral care products, wherein tooth-rinsing devices are an auxiliary tool for cleaning the oral cavity, and teeth and tooth spaces can be cleaned by means of pulsed water flow impingement.

Currently, a tooth washer on the market generally comprises a shell, a nozzle, a water tank and a core structure, wherein the core assembly generally comprises a connecting rod, a piston, a pump body, a water inlet elbow sealing ring, a water inlet valve plate, a water outlet valve plate spring, a nozzle seat sealing ring, a nozzle sealing ring and the like.

However, the existing tooth flusher has the problem of loud noise in the use process.

Disclosure of Invention

In view of the above-mentioned problems, the present application has been made to provide a water pump structure of a dental irrigator and a dental irrigator, which overcome or at least partially solve the problems, including:

a water pump structure of a tooth irrigator, comprising: the device comprises a pump body, a metal sleeve, a piston head, a piston, a sealing ring and a driving assembly;

the metal sleeve is arranged on the inner wall of the pump body; the sealing ring is sleeved on the side edge of the piston head; the piston is arranged at the end part of the piston head; the surface of the piston is provided with an annular protruding part; the sealing ring and the protruding part are respectively connected with the inner wall of the metal sleeve in a sliding way;

the end of the piston head away from the piston is connected with the driving assembly; the driving assembly drives the piston head, the piston sealing ring and the piston to reciprocate along the inner cavity of the metal sleeve.

Preferably, the boss is provided at an end of the piston remote from the piston head; an annular concave area is arranged on the end face of the piston, which is far away from the piston head;

when the piston reciprocates along the inner cavity of the pump body, the protruding part deforms towards the direction of the recessed area.

Preferably, the end part of the piston head is provided with a connecting buckle; a limiting groove is formed in the end part of the piston; the connecting buckle is clamped in the limiting groove.

Preferably, the piston head comprises a cylindrical body portion and the connector link; the sealing ring is sleeved on the side edge of the main body part; the connecting buckle comprises a cylindrical first connecting part, a cylindrical second connecting part and a truncated cone-shaped third connecting part;

one end face of the first connecting part is connected with the end face of the main body part, and the other end face of the first connecting part is connected with one end face of the second connecting part; the end surface radius of the first connecting part is smaller than that of the main body part; the end face radius of the second connecting part is larger than that of the first connecting part; the other end face of the second connecting part is connected with the bottom face of the third connecting part; the radius of the bottom surface of the third connecting part is equal to the radius of the end surface of the second connecting part.

Preferably, an annular sealing groove is arranged on the side edge of the piston head; the inside joint of sealing washer is in the inside of seal groove.

Preferably, the outer wall of the metal sleeve is provided with an annular anti-skid groove; an anti-slip buckle is arranged on the inner wall of the pump body; the anti-slip buckle is clamped in the anti-slip groove.

Preferably, the metal sleeve extends to the outside of the pump body opening end; the metal sleeve extends to the joint of the end face outside the pump body and the inner wall of the metal sleeve is provided with a chamfer or a round angle.

Preferably, the driving assembly comprises a motor, a driving wheel, a driven wheel, a cam, a connecting rod and a metal shaft; the driving wheel is fixed on an output shaft of the motor; the driven wheel is connected with the driving wheel in a meshed manner; the cam is fixed on the end face of the driven wheel; one end of the connecting rod is in transmission connection with the cam, and the other end of the connecting rod is in transmission connection with the piston head through the metal shaft.

Preferably, the end of the connecting rod, which is close to the piston head, is provided with a spherical connecting piece; the end part of the piston head, which is close to the connecting rod, is provided with an accommodating cavity which is matched with the connecting piece; the connecting piece is clamped in the accommodating cavity; the metal shaft passes through the piston head and the connecting piece, respectively.

A dental irrigator, comprising: the water pump comprises a shell, a nozzle, a water tank, an upper bracket, a lower bracket, a water inlet joint, a water outlet joint, a water inlet pipe, a water outlet pipe, a battery and the water pump structure as described in any one of the above;

one end of the shell is provided with the nozzle, and the other end of the shell is provided with the water tank; the upper bracket and the lower bracket are fixed inside the shell; the water pump structure, the water inlet joint and the water outlet joint are arranged between the upper bracket and the lower bracket; the battery is arranged at the side edge of the lower bracket; the water inlet of the pump body is connected with the water inlet joint; the water outlet of the pump body is connected with the water outlet joint; the water inlet joint is connected with the water tank through the water inlet pipe; the water outlet joint is connected with the nozzle through the water outlet pipe.

The application has the following advantages:

in the embodiment of this application, for the great problem of current tooth-rinsing ware noise in the use, this application provides the solution that adopts annular bulge and metal sheath sliding connection, specifically does: "a water pump structure of a tooth-rinsing device, comprising: the device comprises a pump body, a metal sleeve, a piston head, a piston, a sealing ring and a driving assembly; the metal sleeve is arranged on the inner wall of the pump body; the sealing ring is sleeved on the side edge of the piston head; the piston is arranged at the end part of the piston head; the surface of the piston is provided with an annular protruding part; the sealing ring and the protruding part are respectively connected with the inner wall of the metal sleeve in a sliding way; the end of the piston head away from the piston is connected with the driving assembly; the driving assembly drives the piston head, the piston sealing ring and the piston to reciprocate along the inner cavity of the metal sleeve. Through the piston head, the sealing washer, the piston with the metal sheath, the metal sheath sets up the inner wall of the pump body, the sealing washer snare is established the side of piston head, the piston sets up the tip of piston head, the surface of piston is equipped with annular bellying, the sealing washer with bellying respectively with the inner wall sliding connection of metal sheath, the sealing washer with bellying not only has good sealing performance, but also with the frictional resistance of metal sheath is less, can effectively reduce the noise that the tooth flusher sent in the use.

Drawings

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

Fig. 1 is an exploded view of a water pump structure of a dental irrigator according to an embodiment of the present application;

FIG. 2 is a schematic view of an exploded structure of a dental irrigator according to an embodiment of the present application;

fig. 3 is a schematic cross-sectional view of a tooth-rinsing device according to an embodiment of the present application.

Reference numerals in the drawings of the specification are as follows:

10. a water pump structure; 11. a pump body; 12. a metal sleeve; 121. an anti-skid groove; 13. a piston head; 131. a connecting buckle; 132. sealing grooves; 14. a piston; 141. a boss; 15. a seal ring; 161. a motor; 162. a driving wheel; 163. driven wheel; 164. a cam; 165. a connecting rod; 1651. a connecting piece; 166. a metal shaft; 21. an upper bracket; 22. a lower bracket; 31. a water inlet joint; 32. a water outlet joint; 33. a water outlet pipe; 34. a water inlet sealing ring; 35. a water outlet sealing ring; 36. a water inlet one-way valve; 37. a water outlet one-way valve; 40. and a battery.

Detailed Description

In order to make the objects, features and advantages of the present application more comprehensible, the present application is described in further detail below with reference to the accompanying drawings and detailed description. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The inventor finds through analyzing prior art that, the piston of the existing tooth-flushing device reciprocates along the inner cavity of the pump body, and the friction force generated by the contact of the piston and the inner wall of the pump body is larger, so that the problem of larger noise exists in the use process.

Referring to fig. 1, in one embodiment of the present application, there is provided a water pump structure 10 of a dental irrigator, comprising: pump body 11, metal sleeve 12, piston head 13, piston 14, seal ring 15 and drive assembly;

the metal sleeve 12 is arranged on the inner wall of the pump body 11; the sealing ring 15 is sleeved on the side edge of the piston head 13; the piston 14 is arranged at the end of the piston head 13; the surface of the piston 14 is provided with an annular protruding part 141; the sealing ring 15 and the protruding part 141 are respectively connected with the inner wall of the metal sleeve 12 in a sliding way;

the end of the piston head 13 remote from the piston 14 is connected to the drive assembly; the drive assembly drives the piston head 13, the piston 14 seal 15 and the piston 14 to reciprocate along the interior cavity of the metal sleeve 12.

In the embodiment of the present application, for the great problem of noise in the use of current tooth flusher, this application provides the solution that adopts annular protruding and metal cover 12 sliding connection, specifically: "a water pump structure 10 of a dental irrigator, comprising: pump body 11, metal sleeve 12, piston head 13, piston 14, seal ring 15 and drive assembly; the metal sleeve 12 is arranged on the inner wall of the pump body 11; the sealing ring 15 is sleeved on the side edge of the piston head 13; the piston 14 is arranged at the end of the piston head 13; the surface of the piston 14 is provided with an annular protruding part 141; the sealing ring 15 and the protruding part 141 are respectively connected with the inner wall of the metal sleeve 12 in a sliding way; the end of the piston head 13 remote from the piston 14 is connected to the drive assembly; the drive assembly drives the piston head 13, the piston 14 seal 15 and the piston 14 to reciprocate along the interior cavity of the metal sleeve 12. Through piston head 13, sealing washer 15, piston 14 with metal casing 12, metal casing 12 sets up the inner wall of pump body 11, sealing washer 15 cover is established the side of piston head 13, piston 14 sets up the tip of piston head 13, the surface of piston 14 is equipped with annular bellying 141, sealing washer 15 with bellying 141 respectively with the inner wall sliding connection of metal casing 12, sealing washer 15 with bellying 141 not only has good sealing performance, but also with the frictional resistance of metal casing 12 is less, can effectively reduce the noise that the tooth flusher sent in the use.

Next, a water pump structure 10 of a dental irrigator in the present exemplary embodiment will be further described.

In this embodiment, the boss 141 is provided at an end of the piston 14 remote from the piston head 13; the end surface of the piston 14, which is far away from the piston head 13, is provided with an annular concave area;

the protrusions 141 deform in the direction of the recessed areas when the piston 14 reciprocates along the inner cavity of the pump body 11. In a natural state, the outer diameter of the protruding portion 141 is larger than the inner diameter of the metal sleeve 12, so that the protruding portion 141 is in interference connection with the metal sleeve 12, and the concave region can provide a deformation space of the protruding portion 141, so that friction between the piston 14 and the metal sleeve 12 is further reduced.

In this embodiment, a connecting buckle 131 is disposed at an end of the piston head 13; a limit groove is formed at the end part of the piston 14; the connecting buckle 131 is clamped in the limiting groove. The connecting buckle 131 and the limit groove reduce the assembly complexity of the piston 14 and the piston head 13, and simultaneously ensure the connection stability of the piston 14 and the piston head 13.

As an example, the piston head 13 includes a cylindrical body portion and the connecting buckle 131; the sealing ring 15 is sleeved on the side edge of the main body part; the connecting buckle 131 comprises a cylindrical first connecting part, a cylindrical second connecting part and a truncated cone-shaped third connecting part;

one end face of the first connecting part is connected with the end face of the main body part, and the other end face of the first connecting part is connected with one end face of the second connecting part; the end surface radius of the first connecting part is smaller than that of the main body part; the end face radius of the second connecting part is larger than that of the first connecting part; the other end face of the second connecting part is connected with the bottom face of the third connecting part; the radius of the bottom surface of the third connecting part is equal to the radius of the end surface of the second connecting part.

In this embodiment, an annular seal groove 132 is provided on a side of the piston head 13; the inner side of the seal ring 15 is engaged with the inside of the seal groove 132. The sealing groove 132 reduces the complexity of assembling the sealing ring 15 with the piston head 13, and ensures the connection stability of the sealing ring 15 with the piston head 13.

In this embodiment, an annular anti-slip groove 121 is formed on the outer wall of the metal sleeve 12; an anti-slip button is arranged on the inner wall of the pump body 11; the anti-slip buckle is clamped inside the anti-slip groove 121. The anti-slip groove 121 and the anti-slip buckle can ensure the connection stability of the metal sleeve 12 and the pump body 11.

In this embodiment, the metal sleeve 12 extends to the outside of the open end of the pump body 11; the connection part between the end surface of the metal sleeve 12 extending to the outside of the pump body 11 and the inner wall of the metal sleeve 12 is provided with a chamfer or a round angle. The chamfer or fillet reduces the complexity of assembly of the piston assembly with the metal sleeve 12.

As an example, a connection portion between the end surface of the metal sleeve 12 extending to the outside of the pump body 11 and the inner wall of the metal sleeve 12 is provided with a 45-degree chamfer.

In this embodiment, the driving assembly includes a motor 161, a driving wheel 162, a driven wheel 163, a cam 164, a connecting rod 165, and a metal shaft 166; the driving wheel 162 is fixed on the output shaft of the motor 161; the driven wheel 163 is in meshed connection with the driving wheel 162; the cam 164 is fixed to an end face of the driven pulley 163; one end of the connecting rod 165 is in transmission connection with the cam 164, and the other end is in transmission connection with the piston head 13 through the metal shaft 166. The metal shaft 166 reduces the complexity of the assembly of the drive assembly with the piston assembly and provides for a higher transmission efficiency.

As an example, the end of the connecting rod 165 near the piston head 13 is provided with a spherical connecting piece 1651; the end of the piston head 13 near the connecting rod 165 is provided with a containing cavity matched with the connecting piece 1651; the connecting piece 1651 is clamped in the accommodating cavity; the metal shaft 166 passes through the piston head 13 and the connector 1651, respectively.

In this embodiment, the metal sleeve 12 is made of stainless steel. The metal sleeve 12 has high precision and small contact friction, and can remarkably prolong the service life of the piston assembly.

Referring to fig. 2-3, in one embodiment of the present application, there is also provided a dental rinse comprising: a housing (not shown), a nozzle (not shown), a water tank (not shown), an upper bracket 21, a lower bracket 22, a water inlet joint 31, a water outlet joint 32, a water inlet pipe (not shown), a water outlet pipe 33, a battery 40, and the water pump structure 10 according to any of the embodiments described above;

one end of the shell is provided with the nozzle, and the other end of the shell is provided with the water tank; the upper bracket 21 and the lower bracket 22 are fixed inside the housing; the water pump structure 10, the water inlet joint 31 and the water outlet joint 32 are arranged between the upper bracket 21 and the lower bracket 22; the battery 40 is mounted at the side of the lower bracket 22; the water inlet of the pump body 11 is connected with the water inlet joint 31; the water outlet of the pump body 11 is connected with the water outlet joint 32; the water inlet joint 31 is connected with the water tank through the water inlet pipe; the water outlet joint 32 is connected with the nozzle through the water outlet pipe 33.

In this embodiment, the method further includes: a water inlet check valve 36 and a water outlet check valve 37; the water inlet one-way valve 36 is arranged inside the water inlet; the water outlet one-way valve 37 is arranged in the water outlet. When the piston assembly moves away from the bottom of the tank of the pump body 11, the pressure of the inner cavity of the metal sleeve 12 becomes small, the water outlet one-way valve 37 sheet is adsorbed at the water outlet to block the water outlet, the water inlet one-way valve 36 sheet is opened towards the inner side of the water inlet, and the liquid in the water tank flows into the inner cavity of the metal sleeve 12; when the piston assembly moves towards the bottom of the pump body 11, the liquid presses the water inlet check valve 36 sheet to prop against the water inlet to seal the water inlet, and simultaneously impacts the water outlet check valve 37 sheet to open the water outlet outwards, so that the liquid in the inner cavity of the metal sleeve 12 can be sprayed out from the water outlet.

In this embodiment, the method further includes: a water inlet seal ring 34 and a water outlet seal ring 35; an annular water inlet sealing groove is arranged at the joint of the water inlet joint 31 and the water inlet; the water inlet sealing ring 34 is arranged in the water inlet sealing groove; an annular water outlet sealing groove is arranged at the joint of the water outlet connector 32 and the water outlet; the water outlet sealing ring 35 is arranged in the water outlet sealing groove. The water inlet sealing groove reduces the assembly complexity of the water inlet sealing ring 34 and the water inlet joint 31, and the water inlet sealing ring 34 can ensure the tightness of the connection between the water inlet and the water inlet joint 31; the water outlet sealing groove reduces the assembly complexity of the water outlet sealing ring 35 and the water outlet joint 32, and the water outlet sealing ring 35 can ensure the tightness of the connection between the water outlet and the water outlet joint 32.

While preferred embodiments of the present embodiments have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the present application.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.

The water pump structure of the tooth cleaning device and the tooth cleaning device provided by the application are described in detail, and specific examples are applied to the description of the principle and the implementation mode of the application, and the description of the examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (10)

1. A water pump structure of a tooth irrigator, comprising: the device comprises a pump body, a metal sleeve, a piston head, a piston, a sealing ring and a driving assembly;

the metal sleeve is arranged on the inner wall of the pump body; the sealing ring is sleeved on the side edge of the piston head; the piston is arranged at the end part of the piston head; the surface of the piston is provided with an annular protruding part; the sealing ring and the protruding part are respectively connected with the inner wall of the metal sleeve in a sliding way;

the end of the piston head away from the piston is connected with the driving assembly; the driving assembly drives the piston head, the piston sealing ring and the piston to reciprocate along the inner cavity of the metal sleeve.

2. The water pump structure of claim 1, wherein the boss is disposed at an end of the piston remote from the piston head; an annular concave area is arranged on the end face of the piston, which is far away from the piston head;

when the piston reciprocates along the inner cavity of the pump body, the protruding part deforms towards the direction of the recessed area.

3. The water pump structure of claim 1, wherein the end of the piston head is provided with a connecting buckle; a limiting groove is formed in the end part of the piston; the connecting buckle is clamped in the limiting groove.

4. A water pump structure according to claim 3, wherein the piston head comprises a cylindrical body portion and the connector link; the sealing ring is sleeved on the side edge of the main body part; the connecting buckle comprises a cylindrical first connecting part, a cylindrical second connecting part and a truncated cone-shaped third connecting part;

one end face of the first connecting part is connected with the end face of the main body part, and the other end face of the first connecting part is connected with one end face of the second connecting part; the end surface radius of the first connecting part is smaller than that of the main body part; the end face radius of the second connecting part is larger than that of the first connecting part; the other end face of the second connecting part is connected with the bottom face of the third connecting part; the radius of the bottom surface of the third connecting part is equal to the radius of the end surface of the second connecting part.

5. The water pump structure of claim 1, wherein the side of the piston head is provided with an annular sealing groove; the inside joint of sealing washer is in the inside of seal groove.

6. The water pump structure according to claim 1, wherein the outer wall of the metal sleeve is provided with an annular anti-skid groove; an anti-slip buckle is arranged on the inner wall of the pump body; the anti-slip buckle is clamped in the anti-slip groove.

7. The water pump structure of claim 1, wherein the metal sleeve extends to the outside of the pump body open end; the metal sleeve extends to the joint of the end face outside the pump body and the inner wall of the metal sleeve is provided with a chamfer or a round angle.

8. The water pump structure of claim 1, wherein the drive assembly comprises a motor, a drive wheel, a driven wheel, a cam, a connecting rod, and a metal shaft; the driving wheel is fixed on an output shaft of the motor; the driven wheel is connected with the driving wheel in a meshed manner; the cam is fixed on the end face of the driven wheel; one end of the connecting rod is in transmission connection with the cam, and the other end of the connecting rod is in transmission connection with the piston head through the metal shaft.

9. The water pump structure of claim 8, wherein an end of the connecting rod near the piston head is provided with a spherical connecting piece; the end part of the piston head, which is close to the connecting rod, is provided with an accommodating cavity which is matched with the connecting piece; the connecting piece is clamped in the accommodating cavity; the metal shaft passes through the piston head and the connecting piece, respectively.

10. A dental irrigator, comprising: a housing, a nozzle, a water tank, an upper support, a lower support, a water inlet connector, a water outlet connector, a water inlet pipe, a water outlet pipe, a battery and a water pump structure according to any one of claims 1-9;

one end of the shell is provided with the nozzle, and the other end of the shell is provided with the water tank; the upper bracket and the lower bracket are fixed inside the shell; the water pump structure, the water inlet joint and the water outlet joint are arranged between the upper bracket and the lower bracket; the battery is arranged at the side edge of the lower bracket; the water inlet of the pump body is connected with the water inlet joint; the water outlet of the pump body is connected with the water outlet joint; the water inlet joint is connected with the water tank through the water inlet pipe; the water outlet joint is connected with the nozzle through the water outlet pipe.