CN213758663U - Water supply device for tooth washing device - Google Patents

Abstract

The utility model discloses a water supply device for a tooth washing device, which comprises a pump body, a motor and a connecting piece; the pump body is made of elastic materials and is internally provided with a water storage cavity which is respectively communicated with the water outlet channel and the water tank of the tooth washing device in a sealing way; the connecting piece comprises a pressing part and a connecting part which are connected into a whole; the connecting part is in rotation stopping fit with an output shaft of the motor, and the abutting part is eccentrically arranged relative to the axis of the output shaft; the motor drives the connecting piece to rotate, and the eccentrically arranged pressing part is linked to extrude the outer wall of the water storage cavity so as to deform the water storage cavity and press water flow in the cavity into the water outlet channel; this novel water supply installation, its simple structure, reasonable in design and easy realization, it reaches small, the noise is little, sealed effect is good and with low costs effect.

Description

Water supply device for tooth washing device

Technical Field

The present invention relates to the personal care industry, and more particularly to a water supply device for a dental prophylaxis device.

Background

At present, the water pump of current realization water toothpick water spray mainly adopts piston water injection pump, beats out the water in the cavity through piston rod reciprocating motion, and this water pump still has certain defect though can realize the water injection effect: (1) because the existing tooth washing device has small integral volume and the water pump has small volume, a piston rod in a pump shell cannot be added with excessive sealing parts, so that the matching precision of the piston rod and a water cavity needs to be very high, otherwise water leakage is easy to occur, the high-precision manufacturing cost is high, and the selling price is high; (2) even if high-precision matching is realized at high cost before delivery, water leakage still occurs after the water-saving type water-saving device is used for a period of time; (3) the driving force required by the movement of the piston rod is large, so that the driving current needs to be increased, a driving motor with higher power is needed to meet the use requirement, and the cost is high finally; (4) the noise is large, the noise generated in the water supply process of the piston rod is too large, and the use experience is poor; (5) the volume is large, and the piston rod and the water cavity are axially arranged, so that a large movement stroke space is needed, the whole length of the existing tooth washing device is further lengthened, and the length of the existing tooth washing device in the axial direction cannot be reduced;

in conclusion, the water supply device for the existing tooth washing device needs to be further improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem in the prior art, provide a water supply installation for tooth washing device, its simple structure, reasonable in design and easy realization, it reaches small, the noise is little, sealed effect is good and with low costs effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a water supply device for a tooth washing device comprises a pump body, a motor and a connecting piece; the pump body is made of elastic materials and is internally provided with a water storage cavity which is respectively communicated with the water outlet channel and the water tank of the tooth washing device in a sealing way; the connecting piece comprises a pressing part and a connecting part which are connected into a whole; the connecting part is in rotation stopping fit with an output shaft of the motor, and the abutting part is eccentrically arranged relative to the axis of the output shaft; the motor drives the connecting piece to rotate, and the pressing part eccentrically arranged in a linkage manner extrudes the outer wall of the water storage cavity so as to deform the water storage cavity and press water flow in the cavity into the water outlet channel.

Furthermore, the pump body comprises a deformation part and an assembling part which are connected into a whole, and the assembling part is provided with the water outlet channel and a water inlet channel communicated with the water tank; the deformation part is internally provided with the water storage cavity.

Further, the deformation part is arranged in an elliptical shape.

Furthermore, the outer wall of the deformation part is formed with an assembling hole for the insertion of the pressing part.

Furthermore, the tooth washing device also comprises a plurality of limiting columns which are arranged in the tooth washing device; the outer wall of the deformation part is provided with limiting holes for inserting the limiting columns, and the limiting holes are distributed at intervals along the circumferential direction of the outer wall of the deformation part.

Furthermore, the water supply device comprises at least two pump bodies, the two pump bodies are arranged in an axial symmetry mode through the output shaft of the motor, and each pump body is respectively communicated with the water outlet channel and the water tank of the tooth washing device in a sealing mode.

Technical scheme for prior art, the beneficial effect who gains is:

(1) the utility model provides a water supply device for a tooth washing device, which has simple structure, reasonable design and easy realization; the novel pump body is made of elastic materials, the motor drives the connecting piece to continuously extrude the pump body, so that water in a water storage cavity in the pump body is extruded to a water outlet channel to be sprayed out due to the deformation of the pump body, the pump body is respectively connected with a water tank of the tooth washing device and the water outlet channel in a sealing manner, when the pump body is extruded, water flow is extruded to the water outlet channel, the pump body is restored to the original state when pressure is lost, negative pressure is formed in the water storage cavity at the moment, the water in the water tank is sucked into the water storage cavity, the water supply function is realized in a circulating manner, the axial movement of a piston rod is omitted, the volume is reduced, meanwhile, a complex sealing structure is not needed, the cost is reduced, the sealing structure adopted by the novel pump body is simple, the pump body is integrally formed, the pump body is only required to be fixedly connected with the tooth washing device in a sealing manner, the water leakage phenomenon cannot occur, and the sealing effect is good;

(2) the utility model adopts the pump body comprises the deformation part and the mounting part which are connected into a whole, the mounting part is made of hard material, thereby playing a good role of sealing and mounting, and the deformation part is made into an ellipse shape, so that the resistance in the deformation process is reduced, and the service life can be prolonged;

(3) the utility model is also provided with an assembling hole connected with the pressing part to improve the reliability of pressing fit;

(4) the utility model is also provided with a spacing post and a spacing hole for matching, which ensures that the pump body is pressed and deformed and improves the stability;

(5) the utility model discloses set up two at least pump bodies, set up two supporting portions of complex with it on the connecting piece, alternate operation realizes going out quick water effect like this.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of a three-dimensional exploded structure of a water supply device according to the present invention;

FIG. 2 is a cross-sectional view of the water supply apparatus of the present invention;

fig. 3 is a schematic perspective view of the pump body according to the present invention;

fig. 4 is a schematic view of a three-dimensional structure of the pump body of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1, 2 and 3, the water supply device for a tooth washing device according to the present invention is used for injecting water in a water tank into a nozzle of the tooth washing device; the water supply device mainly comprises the following components: the pump body 1, the motor 2 and the connecting piece 3;

the pump body 1 is made of elastic materials, the elastic materials adopted by the novel pump body 1 are rubber, and the pump body can be made of other elastic materials; the pump body 1 comprises a deformation part 11 and an attachment part 12 which are connected into a whole, wherein the attachment part 12 is provided with the water outlet channel 121 and a water inlet channel 122 communicated with the water tank; it should be noted that the deformation part 11 is internally formed with the water storage cavity 111, and the water storage cavity 111 is respectively communicated with the water outlet channel 121 and the water inlet channel 122 of the water tank in a sealing manner; the water tank is communicated with a water inlet channel 122 through a water inlet pipe, and the water inlet channel 122 is communicated with the water storage cavity 111; the water outlet channel 121 is directly connected with the nozzle;

the connecting piece 3 comprises a pressing part 31 and a connecting part 32 which are connected into a whole; the pressing part 31 is a cylindrical body, and the outer wall of the deformation part 11 is formed with an attachment hole 113 for the pressing part 31 to be inserted; it should be noted that, the deformation part 11 of the present invention is disposed in an elliptical shape, so that the resistance in the deformation process is reduced, and the service life can be prolonged;

the connecting part 32 is in rotation stopping fit with the output shaft of the motor 2, and the pressing part 31 is eccentrically arranged relative to the axis of the output shaft 20;

the motor 2 drives the connecting piece 3 to rotate, and the pressing part 31 eccentrically arranged in a linkage manner extrudes the outer wall of the water storage cavity 111, so that the water storage cavity 111 is deformed, and water flow in the cavity is pressed into the water outlet channel 121.

More specifically, as shown in fig. 4, the tooth washing device further comprises a plurality of limiting columns 4 arranged in the tooth washing device; the outer wall of the deformation part 11 is formed with a limiting hole 114 for inserting the limiting column 4, and the limiting holes 114 are arranged along the outer wall of the deformation part 11 at intervals in the circumferential direction.

In order to improve the water inlet efficiency, the water supply device comprises at least two pump bodies 1, wherein the pump bodies 1 are arranged in an axial symmetry manner by the output shaft 20 of the motor 2, and each pump body 1 is respectively communicated with the water outlet channel 121 and the water tank of the tooth washing device in a sealing manner.

The present invention relates to a tooth washing device with a water supply device, which mainly comprises the following parts: the tooth washing device comprises a tooth washing device body, a nozzle, a pump body 1, a motor 2 and a connecting piece 3;

during actual assembly, firstly, the tooth washing device main body and the assembly part 12 of the pump body 1 are fixed in a sealing way, so that the water inlet channel 122 on the assembly part 12 is communicated with the water inlet pipe in the water tank, and the water outlet channel 121 is connected with the nozzle; the deformation part 11 connected with the connecting part 12 is provided with a water storage cavity 111, a limiting hole 114 and a connecting hole 113; secondly, inserting the limit post 4 with one end fixed on the tooth washing device body into the limit hole 114, and installing the abutting part 31 of the connecting piece 3 in the installing hole 113; it should be noted that the deformation part 11 is designed in an elliptical shape, the limiting columns 4 are arranged at intervals around the circumferential direction, and only one position is left to be provided with the mounting hole 113; thirdly, the output shaft 20 of the motor 2 is in rotation stopping fit with the connecting part 32 of the connecting piece 3, so that the connecting piece 3 rotates along with the motor 2 when the motor 2 rotates; the pressing part 31 is offset parallel to the output shaft 20 of the motor 2, it should be noted that the pressing part 31 on the connecting member 3 of the present invention is inserted into the mounting hole 113 and can rotate in the mounting hole 113, and of course, the pressing part 31 may also be arranged on the outer wall of the deformation part 11 and can extrude the deformation part 11 to deform; finally, the motor 2 and the connecting piece 3 are arranged in the tooth washing device main body together to complete the whole assembling process;

when the water storage device is actually used, the motor 2 is started, the output shaft 20 of the motor rotates to drive the connecting piece 3 to synchronously rotate, the pressing part 31 of the connecting piece 3 and the output shaft 20 are eccentrically arranged, so that the deformation of the water storage cavity 111 of the deformation part 11 is extruded, the water passing area of the water storage cavity 111 is changed, and the water storage cavity 111 is communicated with the water tank, so that the water tank is in a sealed state, and most of water flows towards the direction of the water outlet channel 121 when the water storage cavity 111 is extruded, and finally the water flows out of the nozzle; when the pressing part 31 moves outwards along with the output shaft 20, negative pressure is formed in the water storage cavity 111, and the pump body 1 is made of elastic materials, so that the water passing area of the water storage cavity 111 becomes larger due to the outward pulling, water flow is quickly sucked into the water storage cavity 111, and the water flow is extruded into the water outlet channel 121 again to realize the water supply function in a circulating manner; because the water storage cavity 111 chamber is radially arranged along the tooth washing device main body, the volume of the tooth washing device main body can become smaller, no noise is generated, more importantly, the water storage cavity 111 with different water passing areas can be made according to tooth washing devices of different specifications and models, and the function can be realized by arranging a plurality of pump bodies 1.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (6)

1. A water supply device for a dental scaler, characterized in that: the water supply device comprises a pump body, a motor and a connecting piece; the pump body is made of elastic materials and is internally provided with a water storage cavity which is respectively communicated with the water outlet channel and the water tank of the tooth washing device in a sealing way; the connecting piece comprises a pressing part and a connecting part which are connected into a whole; the connecting part is in rotation stopping fit with an output shaft of the motor, and the abutting part is eccentrically arranged relative to the axis of the output shaft; the motor drives the connecting piece to rotate, and the pressing part eccentrically arranged in a linkage manner extrudes the outer wall of the water storage cavity so as to deform the water storage cavity and press water flow in the cavity into the water outlet channel.

2. A water supply device for a dental prophylaxis device according to claim 1, wherein: the pump body comprises a deformation part and an assembling part which are connected into a whole, and the assembling part is provided with the water outlet channel and a water inlet channel communicated with the water tank; the deformation part is internally provided with the water storage cavity.

3. A water supply device for a dental prophylaxis device according to claim 2, wherein: the deformation part is arranged in an elliptical shape.

4. A water supply device for a dental prophylaxis device according to claim 3, wherein: the outer wall of the deformation part is formed with an assembling hole for the splicing of the pressing part.

5. A water supply device for a dental prophylaxis device according to claim 2, wherein: the tooth washing device also comprises a plurality of limiting columns which are arranged in the tooth washing device; the outer wall of the deformation part is provided with limiting holes for inserting the limiting columns, and the limiting holes are distributed at intervals along the circumferential direction of the outer wall of the deformation part.

6. A water supply device for a dental prophylaxis device according to any one of claims 1 to 5, wherein: the water supply device comprises at least two pump bodies, the two pump bodies are arranged in an axial symmetry mode through an output shaft of the motor, and each pump body is respectively communicated with the water outlet channel and the water tank of the tooth washing device in a sealing mode.

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