CN217002187U - Low-friction water pump connecting structure of tooth flushing device and tooth flushing device - Google Patents
Low-friction water pump connecting structure of tooth flushing device and tooth flushing device Download PDFInfo
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- CN217002187U CN217002187U CN202220196814.7U CN202220196814U CN217002187U CN 217002187 U CN217002187 U CN 217002187U CN 202220196814 U CN202220196814 U CN 202220196814U CN 217002187 U CN217002187 U CN 217002187U
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Abstract
The application provides a low-friction water pump connecting structure of a tooth flushing device and the tooth flushing device, wherein the water pump connecting structure of the tooth flushing device comprises a pump body, a piston ring, a connecting rod assembly and a driving assembly; the piston ring is arranged on the inner side wall of the pump body; the inner side of the piston ring is provided with at least one annular bulge along the circumferential direction of the piston ring; the connecting rod component is arranged in the pump body in a penetrating way and penetrates through the piston ring; wherein, the piston ring is connected with the connecting rod component in an interference manner; the connecting rod assembly is connected with the driving assembly and driven by the driving assembly to reciprocate in the pump body; when the connecting rod component reciprocates, the connecting rod component and the piston ring are matched with each other to suck liquid into the pump body from the water inlet of the pump body and pump the liquid out from the water outlet of the pump body. In this application, the piston ring forms linear contact with the cooperation of link assembly, can effectively reduce the friction, has good sealing performance simultaneously, can avoid link assembly to bring out liquid at reciprocating motion in-process.
Description
Technical Field
The application relates to the technical field of tooth flushing devices, in particular to a low-friction water pump connecting structure of a tooth flushing device and the tooth flushing device.
Background
The tooth flushing device is one kind of oral cavity cleaning product and includes mainly water pump, water storing tank and nozzle. The water pump of the tooth flushing device on the market at present generally adopts a piston connecting rod movement structure or a diaphragm pump structure.
The piston connecting rod motion structure has the advantages of high transmission efficiency, small kinetic energy loss and the like, but has the following defects: firstly, the piston probably takes out the pump body with the water when being reciprocating motion in the pump body, leads to water entering motor, PCB (Printed Circuit Board), battery in the pump body and causes the short Circuit, therefore it is generally not long to wash tooth ware life. Secondly, the piston reciprocates in the pump body, and the high-frequency friction force between the outer wall of the piston and the inner wall of the pump body needs to be reduced, so that higher requirements are provided for the material performance and the fatigue resistance of the piston and the pump body.
The application of the diaphragm pump technology solves some technical problems, however, the diaphragm membrane manufacturing process is generally silicon rubber injection molding, and is influenced by fluidity and pressure in the injection molding process, the difference between each diaphragm part is large, and the fatigue resistance is different. As the number of the diaphragm sheets formed in the same batch is large, the consistency and the stability of the product quality are difficult to guarantee, and once the diaphragm sheets are broken, water in the pump body can enter a motor, a PCB (printed Circuit Board) and a battery to cause short circuit, so that the use of the product is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application is proposed to provide a low-friction water pump connection structure of a dental irrigator and a dental irrigator which overcome or at least partially solve the above problems, comprising:
a low friction water pump connection for a dental irrigator comprising: the pump body, the piston ring, the connecting rod assembly and the driving assembly;
the piston ring is arranged on the inner side wall of the pump body; the inner side of the piston ring is provided with at least one annular bulge along the circumferential direction of the piston ring; the connecting rod component is arranged in the pump body in a penetrating mode and penetrates through the piston ring; wherein the piston ring is in interference connection with the connecting rod assembly;
the connecting rod assembly is connected with the driving assembly and driven by the driving assembly to reciprocate in the pump body;
the connecting rod assembly and the piston ring cooperate to draw fluid in from an inlet of the pump body and pump the fluid out of an outlet of the pump body as the connecting rod assembly reciprocates.
Preferably, the connecting rod assembly comprises a first connecting rod and a second connecting rod; one end of the first connecting rod is connected with the output end of the driving assembly, and the other end of the first connecting rod is connected with the end part of the second connecting rod through a ball head; the second connecting rod is arranged in the pump body in a penetrating mode and penetrates through the piston ring; wherein the second connecting rod is in interference connection with the piston ring.
Preferably, the end part of the first connecting rod is provided with the ball head; a groove matched with the ball head in shape is formed in the end part of the second connecting rod; the ball head is clamped in the groove;
or;
the end part of the second connecting rod is provided with the ball head; a groove matched with the ball head in shape is formed in the end part of the first connecting rod; the ball head is clamped inside the groove.
Preferably, the driving assembly comprises a motor, a motor gear, a transmission gear and a cam; the motor gear is fixed on an output shaft of the motor; the transmission gear is meshed with the motor gear; the cam is fixed on the end face of the transmission gear; the end part of the first connecting rod is in transmission connection with the cam.
Preferably, the steel sleeve is further included; the steel sleeve is arranged on the inner side wall of the pump body; the connecting rod assembly is connected with the steel sleeve in a sliding mode.
Preferably, the pump body comprises a first pump body assembly part and a second pump body assembly part; the first pump body assembly part and the second pump body assembly part are respectively of a hollow cylinder structure; the first pump body assembly part is connected to the end of the second pump body assembly part; the end face, facing the second pump body assembly part, of the first pump body assembly part is provided with a first protruding part; the end face of the first bulge is provided with an installation part; the axial cross section of the piston ring comprises a concave shape; the concave opening is embedded and connected with the mounting part; the end face, facing the first pump body assembly part, of the second pump body assembly part is provided with a first concave part; the first convex portion and the piston ring are respectively arranged in the first concave portion; the end surface of the first recess is connected to the piston ring.
Preferably, the second pump body assembly comprises a body assembly and an interface assembly; the main body assembly part and the interface assembly part are respectively of hollow cylinder structures; the first pump body assembly part is connected to one end of the main body assembly part; the interface assembly is connected to the other end of the main body assembly; the end of the interface assembly part, which is far away from the main assembly part, is provided with the water outlet; the side of the interface assembly is provided with the water inlet.
Preferably, the device also comprises a sealing ring; the seal ring is disposed between the body fitting and the interface fitting.
Preferably, the end face of the interface assembly facing the main assembly is provided with a second convex part; the end face, facing the interface assembly part, of the main assembly part is provided with a third concave part; the second raised portion is disposed within the third recessed portion; a fourth concave part is arranged on the side edge, facing the main assembly part, of the second convex part; the seal ring is disposed in the fourth recess.
A tooth flushing device comprises a shell, a bracket, a nozzle, a water storage tank, a water inlet pipe and a water pump connecting structure of the tooth flushing device, wherein the water pump connecting structure is arranged on the water storage tank; the nozzle and the water storage tank are respectively arranged at the end part of the shell; the bracket is fixed inside the shell; the water pump connecting structure of the tooth flusher is arranged on the bracket; the pump body is respectively connected with the water inlet pipe and the nozzle; the water inlet pipe is connected with the water storage tank.
The application has the following advantages:
in an embodiment of the application, the piston ring is connected with the connecting rod assembly through the pump body, the piston ring, the connecting rod assembly and the driving assembly; the piston ring is arranged on the inner side wall of the pump body; the inner side of the piston ring is provided with at least one annular bulge along the circumferential direction of the piston ring; the connecting rod component is arranged in the pump body in a penetrating mode and penetrates through the piston ring; wherein the piston ring is in interference connection with the connecting rod assembly; the connecting rod assembly is connected with the driving assembly and driven by the driving assembly to reciprocate in the pump body; when the connecting rod assembly reciprocates, the connecting rod assembly and the piston ring are matched with each other to suck liquid into the pump body from a water inlet of the pump body and pump the liquid out from a water outlet of the pump body, and the piston ring is matched with the connecting rod assembly to form linear contact, so that friction can be effectively reduced, the piston ring has good sealing performance, and the connecting rod assembly can be prevented from bringing out the liquid in the reciprocating process.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic structural view of a water pump connection structure of a water toothpick in a first state according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a water pump connection structure of a dental irrigator according to an embodiment of the present application in a second state;
fig. 3 is a schematic structural view of a piston ring in a water pump connection structure of a tooth flusher according to an embodiment of the present application.
The reference numbers in the drawings of the specification are as follows:
100. a pump body; 110. a first pump body assembly; 120. a second pump body assembly; 121. a body assembly; 122. an interface assembly; 200. a piston ring; 300. a connecting rod assembly; 310. a first link; 320. a second link; 400. a drive assembly; 500. steel bushing; 600. and (5) sealing rings.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It should be apparent that the embodiments described are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 3, a low-friction water pump connection structure of a tooth flusher according to an embodiment of the present application is shown, including: pump body 100, piston ring 200, connecting rod assembly 300, and drive assembly 400;
the piston ring 200 is arranged on the inner side wall of the pump body 100; the inner side of the piston ring 200 is provided with at least one annular protrusion along the circumferential direction of the piston ring 200; the connecting rod assembly 300 is arranged in the pump body 100 in a penetrating way and penetrates through the piston ring 200; wherein the piston ring is in interference connection with the connecting rod assembly 300;
the connecting rod assembly 300 is connected with the driving assembly 400 and driven by the driving assembly 400 to reciprocate in the pump body 100;
when the connecting rod assembly 300 reciprocates, the connecting rod assembly 300 and the piston ring 200 cooperate to draw fluid in from the inlet of the pump body 100 and pump the fluid out of the outlet of the pump body 100.
In the embodiment of the present application, the piston ring 200, the connecting rod assembly 300, and the driving assembly 400 are connected to the pump body 100; the piston ring 200 is arranged on the inner side wall of the pump body 100; the inner side of the piston ring 200 is provided with at least one annular protrusion along the circumferential direction of the piston ring 200; the connecting rod assembly 300 is arranged in the pump body 100 in a penetrating way and penetrates through the piston ring 200; wherein the piston ring 200 is in interference connection with the connecting rod assembly 300; the connecting rod assembly 300 is connected with the driving assembly 400 and reciprocates in the pump body 100 by the driving of the driving assembly 400; when the connecting rod assembly 300 reciprocates, the connecting rod assembly 300 and the piston ring 200 are matched with each other to draw in liquid from a water inlet of the pump body 100 and pump out the liquid from a water outlet of the pump body 100, and the piston ring 200 and the connecting rod assembly 300 are matched to form linear contact, so that friction can be effectively reduced, and meanwhile, the piston ring assembly has good sealing performance and can prevent the connecting rod assembly 300 from carrying out the liquid in the reciprocating process.
Hereinafter, a low-friction water pump coupling structure of the dental irrigator in the present exemplary embodiment will be further described.
In this embodiment, the connecting rod assembly 300 includes a first connecting rod 310 and a second connecting rod 320; one end of the first link 310 is connected to the output end of the driving assembly 400, and the other end is connected to the end of the second link 320 via a ball; the second connecting rod 320 is arranged in the pump body 100 in a penetrating way and penetrates through the piston ring 200; wherein the second connecting rod 320 is in interference connection with the piston ring. The ball head has a good guiding function, can convert the rotation motion of the driving assembly 400 into the reciprocating motion of the second connecting rod 320, has high kinetic energy conversion rate, and can reduce the influence of the radial swing of the first connecting rod 310 on the reciprocating motion of the second connecting rod 320.
In this embodiment, the end of the first connecting rod 310 is provided with the ball head; a groove matched with the ball head in shape is formed in the end part of the second connecting rod 320; the ball head is clamped in the groove; or; the ball head is arranged at the end part of the second connecting rod 320; a groove matched with the ball head in shape is formed in the end part of the first connecting rod 310; the ball head is clamped in the groove. The ball may be connected to an end of any one of the first link 310 and the second link 320, and the arrangement of the ball is not limited in the present application.
In this embodiment, the driving assembly 400 includes a motor, a motor gear, a transmission gear, and a cam; the motor gear is fixed on an output shaft of the motor; the transmission gear is meshed with the motor gear; the cam is fixed on the end face of the transmission gear; the end of the first link 310 is drivingly connected to the cam.
When the motor gear is driven by the motor to rotate, the transmission gear is driven by the motor gear to rotate, the cam is driven by the transmission gear to rotate, the first connecting rod 310 is driven by the cam to swing, and the second connecting rod 320 is driven by the first connecting rod 310 to reciprocate along the axial direction of the pump body 100.
In this embodiment, a steel sleeve 500 is further included; the steel sleeve 500 is arranged on the inner side wall of the pump body 100; the connecting rod assembly 300 is slidably coupled to the steel sleeve 500. Specifically, the steel sleeve 500 is a tubular structure, and the outer wall of the steel sleeve 500 is attached to the inner wall of the pump body 100. The steel sleeve 500 has high precision and small contact friction, and the service life of the second connecting rod 320 can be obviously prolonged.
In this embodiment, the pump body 100 includes a first pump body assembly 110 and a second pump body assembly 120; the first pump body assembly part 110 and the second pump body assembly part 120 are respectively of a hollow cylinder structure; the first pump body assembly 110 is attached to the end of the second pump body assembly 120; the end face of the first pump body assembly part 110 facing the second pump body assembly part 120 is provided with a first convex part; the end face of the first bulge is provided with an installation part; the axial cross-section of the piston ring 200 comprises a concave shape; the concave opening is connected with the mounting part in a fitting manner; the end surface of the second pump body assembly part 120 facing the first pump body assembly part 110 is provided with a first concave part; the first raised portion and the piston ring 200 are respectively disposed within the first recessed portion; the end surface of the first recess is connected to the piston ring 200. Specifically, the piston ring 200 includes a piston ring body and the annular projection. In a natural state, the axial section of the piston ring main body is concave, and the outer side wall of the piston ring main body is attached to the side wall of the first concave part; the axial section of the annular bulge is in a first shape; wherein the first shape decreases in axial length from an end proximal to the piston ring body to an end distal to the piston ring body. Preferably, the axial length of the end of the first shape remote from the piston ring body is zero. The inner diameter of the piston ring body is greater than or equal to the inner diameter of the pump body 100, and the inner diameter of the annular projection is smaller than the inner diameter of the pump body 100. The interference connection between the connecting rod assembly 300 and the piston ring 200 can be satisfied by making the inner side edge of the piston ring 200 protrude from the inner side wall of the pump body 100. As an example, the first shape is a triangle or a semicircle, or any other shape with end points, and the annular protrusion is provided with one or more axial cross-sectional shapes, which may be the same or different from each other, of the piston ring 200. The shape, number and arrangement of the annular protrusions are not limited in the present application.
In this embodiment, the second pump body assembly 120 includes a body assembly 121 and an interface assembly 122; the main body assembly part 121 and the interface assembly part 122 are respectively hollow cylinder structures; the first pump body assembly 110 is connected to one end of the body assembly 121; the interface fitting 122 is connected to the other end of the body fitting 121; the end of the interface fitting 122 away from the body fitting 121 is provided with the water outlet; the side of the interface fitting 122 is provided with the water inlet. Specifically, the inner diameter of the first pump body assembly 110 is equal to the inner diameter of the body assembly 121, and the inner diameter of the body assembly 121 is smaller than the inner diameter of the interface assembly 122. The outer diameter of the second link 320 is equal to the inner diameter of the first pump body assembly 110. The water inlet is connected with the water storage tank through a water inlet pipe; the water outlet is connected with the nozzle through a pipe seat. The main body assembly part 121, the interface assembly part 122 and the inner space of the first pump body assembly part 110 form a volume cavity; when the second connecting rod 320 reciprocates along the axial direction of the pump body 100 under the driving of the first connecting rod 310, the liquid in the water storage tank enters the volume cavity through the water inlet, and then is discharged to the nozzle through the water outlet under the pumping action of the second connecting rod 320.
In this embodiment, a seal ring 600 is further included; the seal ring 600 is disposed between the body fitting 121 and the interface fitting 122. The sealing ring 600 can improve the sealing performance between the body assembly 121 and the interface assembly 122, and prevent the liquid from leaking.
In this embodiment, the end surface of the interface fitting 122 facing the body fitting 121 is provided with a second protruding portion; the end surface of the main body assembly part 121 facing the interface assembly part 122 is provided with a third concave part; the second convex part is arranged in the third concave part; a fourth concave part is arranged on the side edge of the second convex part facing the main body assembly part 121; the seal ring 600 is disposed in the fourth recess. The interface assembly 122 and the body assembly 121 are manufactured by a simple process and have high connection stability.
In an embodiment of the present application, there is further provided a tooth-rinsing device, comprising a housing, a bracket, a nozzle, a tube seat, a water storage tank, a water inlet tube, and a water pump connection structure of the tooth-rinsing device as described in any one of the above items; the nozzle is arranged at one end of the shell through the pipe seat, and the water storage tank is arranged at the other end of the shell; the bracket is fixed inside the shell; the water pump connecting structure of the tooth flushing device is arranged on the bracket; the pump body 100 is connected with the water inlet pipe and the pipe seat respectively; the water inlet pipe is connected with the water storage tank. The tooth flushing device is simple in overall structure, small in occupied space, simple in manufacturing process and high in product quality consistency and stability.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 an … …" does not exclude the presence of other identical elements in the process, method, article, or terminal equipment comprising the element.
The water pump connecting structure of the low-friction tooth flushing device and the tooth flushing device provided by the application are introduced in detail, specific examples are applied in the description to explain the principle and the implementation mode of the application, and the description of the embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The utility model provides a low friction towards tooth ware water pump connection structure which characterized in that includes: the pump body, the piston ring, the connecting rod assembly and the driving assembly;
the piston ring is arranged on the inner side wall of the pump body; the inner side of the piston ring is provided with at least one annular bulge along the circumferential direction of the piston ring; the connecting rod component is arranged in the pump body in a penetrating mode and penetrates through the piston ring; wherein the piston ring is in interference connection with the connecting rod assembly;
the connecting rod assembly is connected with the driving assembly and driven by the driving assembly to reciprocate in the pump body;
the connecting rod assembly and the piston ring cooperate to draw fluid in from an inlet of the pump body and pump the fluid out of an outlet of the pump body as the connecting rod assembly reciprocates.
2. The water pump connection for a dental irrigator of claim 1 wherein said linkage assembly comprises a first linkage and a second linkage; one end of the first connecting rod is connected with the output end of the driving assembly, and the other end of the first connecting rod is connected with the end part of the second connecting rod through a ball head; the second connecting rod penetrates through the pump body and penetrates through the piston ring; wherein the second connecting rod is in interference connection with the piston ring.
3. The water pump connecting structure of the water irrigator according to claim 2, wherein the ball head is provided at an end of the first link; a groove matched with the ball head in shape is formed in the end part of the second connecting rod; the ball head is clamped in the groove;
or;
the end part of the second connecting rod is provided with the ball head; a groove matched with the ball head in shape is formed in the end part of the first connecting rod; the ball head is clamped inside the groove.
4. The water pump connection for a dental irrigator of claim 2 wherein said drive assembly includes a motor, a motor gear, a drive gear and a cam; the motor gear is fixed on an output shaft of the motor; the transmission gear is meshed with the motor gear; the cam is fixed on the end face of the transmission gear; the end part of the first connecting rod is in transmission connection with the cam.
5. The water pump connection for a dental irrigator of claim 1 further comprising a steel sleeve; the steel sleeve is arranged on the inner side wall of the pump body; the connecting rod assembly is connected with the steel sleeve in a sliding mode.
6. The water pump connection of the dental irrigator of claim 1 wherein the pump body includes a first pump body assembly and a second pump body assembly; the first pump body assembly part and the second pump body assembly part are respectively of a hollow cylinder structure; the first pump body assembly part is connected to the end of the second pump body assembly part; the end face, facing the second pump body assembly part, of the first pump body assembly part is provided with a first protruding part; the end face of the first bulge is provided with an installation part; the axial cross section of the piston ring comprises a concave shape; the concave opening is connected with the mounting part in a fitting manner; the end face, facing the first pump body assembly part, of the second pump body assembly part is provided with a first concave part; the first convex portion and the piston ring are respectively arranged in the first concave portion; the end surface of the first recess is connected to the piston ring.
7. The water pump connection for a dental irrigator of claim 6 wherein said second pump body fitting comprises a main body fitting and a mouthpiece fitting; the main assembly part and the interface assembly part are respectively of a hollow cylinder structure; the first pump body assembly part is connected to one end of the main body assembly part; the interface assembly is connected to the other end of the main assembly; the end of the interface assembly part, which is far away from the main assembly part, is provided with the water outlet; the side of the interface assembly is provided with the water inlet.
8. The water pump connection structure of the water irrigator of claim 7 further comprising a sealing ring; the seal ring is disposed between the body fitting and the interface fitting.
9. The water pump connection structure of the water toothpick according to claim 8, wherein an end surface of said mouthpiece fitting facing said main body fitting is provided with a second protrusion; the end face, facing the interface assembly part, of the main assembly part is provided with a third concave part; the second raised portion is disposed within the third recessed portion; a fourth concave part is arranged on the side edge, facing the main assembly part, of the second convex part; the seal ring is disposed in the fourth recess.
10. A dental irrigator comprising a housing, a bracket, a nozzle, a reservoir, a water inlet tube and a water pump connection for a dental irrigator according to any one of claims 1 to 9; the nozzle and the water storage tank are respectively arranged at the end part of the shell; the bracket is fixed inside the shell; the water pump connecting structure of the tooth flushing device is arranged on the bracket; the pump body is respectively connected with the water inlet pipe and the nozzle; the water inlet pipe is connected with the water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220196814.7U CN217002187U (en) | 2022-01-21 | 2022-01-21 | Low-friction water pump connecting structure of tooth flushing device and tooth flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220196814.7U CN217002187U (en) | 2022-01-21 | 2022-01-21 | Low-friction water pump connecting structure of tooth flushing device and tooth flushing device |
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| CN217002187U true CN217002187U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220196814.7U Active CN217002187U (en) | 2022-01-21 | 2022-01-21 | Low-friction water pump connecting structure of tooth flushing device and tooth flushing device |
Country Status (1)
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| CN (1) | CN217002187U (en) |
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- 2022-01-21 CN CN202220196814.7U patent/CN217002187U/en active Active
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