CN217118647U - Water inlet mechanism and tooth flushing device - Google Patents

Abstract

The utility model provides a water inlet mechanism and a tooth washing device, which relate to the technical field of tooth cleaning appliances, wherein the water inlet mechanism comprises an assembly shell, a valve block component and a joint, a flow passage and a water inlet interface communicated with the flow passage are arranged in the assembly shell, and a clamping table is arranged on the inner side wall of the water inlet interface along the circumferential direction of the water inlet interface; the valve plate assembly is arranged in the water inlet interface and comprises a fixed ring plate and a valve plate, the fixed ring plate is arranged in an annular shape, the valve plate is arranged in an annular space of the fixed ring plate, one end of the valve plate is fixedly connected to the annular inner wall of the fixed ring plate, and the other end of the valve plate is arranged at an interval with the inner wall of the fixed ring plate; the valve block assembly is simple in structure and assembly process, the joint and the valve block only need to be fixed by means of the joint, operation is convenient and fast, the fixing structure of the joint and the valve block is simplified, and the structure of the joint inlet is simpler.

Description

Water inlet mechanism and tooth flushing device

Technical Field

The utility model belongs to the technical field of tooth cleaning device technique and specifically relates to a mechanism of intaking and towards tooth ware is related to.

Background

The tooth flushing device is an auxiliary tool for cleaning oral cavity, and can flush food residue, dental plaque bacteria and the like at hidden places such as gum, slits between teeth and the like through strong water flow jetted by a nozzle, thereby achieving the purposes of cleaning teeth and improving gum. The tooth flushing device comprises a pump body, the pump body comprises a driving assembly and a water inlet mechanism, a water outlet and a water inlet are formed in the water inlet mechanism, an outlet one-way valve and an inlet one-way valve are arranged on the water inlet, and the driving assembly is used for driving water to intermittently enter the water inlet mechanism and intermittently spray out of the water outlet to achieve pulse type water flow.

The water inlet of the water inlet mechanism of the existing tooth flushing device needs to be provided with a plurality of components such as a water inlet pipe and an inlet check valve, each component is independently fixed and assembled, the assembling process is complex, and the check valve and the water inlet pipe need to be provided with corresponding fixed structures, so that the structure of the water inlet is complex.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanism of intaking and towards tooth ware to solve the complicated and loaded down with trivial details technical problem of water inlet department structure of the component assembling process of the water inlet department of the mechanism of intaking that exists among the prior art.

The utility model provides a water inlet mechanism, including equipment shell, valve block subassembly and joint, be provided with the runner in the equipment shell and with the water inlet interface of runner intercommunication, be provided with the ka tai on the inside wall of water inlet interface along the circumference of water inlet interface;

the valve plate assembly is arranged in the water inlet interface and comprises a fixed ring plate and a valve plate, the fixed ring plate is arranged in an annular shape, the valve plate is arranged in an annular space of the fixed ring plate, one end of the valve plate is a fixed end, the fixed end is fixedly connected to the annular inner wall of the fixed ring plate, the other end of the valve plate is a free end, the free end and the inner wall of the fixed ring plate are arranged at intervals, and the fixed ring plate is arranged on the clamping table;

the joint sleeve is arranged in the water inlet interface and is abutted against one side, far away from the clamping table, of the fixed ring piece so as to fix the fixed ring piece between the joint and the clamping table, the valve block is arranged corresponding to the water outlet of the joint, and the free end of the valve block can swing inwards under the action of differential pressure at two sides by taking the fixed end of the valve block as an axial direction.

Furthermore, the free end of the valve plate is arranged in an arc shape, so that a gap extending in an arc shape is formed between the valve plate and the fixed ring plate.

Further, the gap extends in a U-shape.

Furthermore, the outer contour line of the fixed ring piece comprises an arc-shaped edge and a straight edge, the arc-shaped edge and the straight edge are connected end to form a closed ring, and the fixed end of the valve piece is correspondingly connected to the inner side of the straight edge;

one side of the clamping table facing the valve plate assembly is provided with a protruding portion matched with the straight line edge, and the protruding portion is used for positioning the installation position of the fixed ring plate.

Furthermore, the fixed ring piece and the valve piece are made of the same material and are integrally formed.

Furthermore, the inside wall of the water inlet interface is provided with a limiting part at one side of the clamping table far away from the joint, and the limiting part and the valve plate assembly are arranged at intervals and used for limiting the inward swinging amplitude of the valve plate.

Furthermore, the limiting portion comprises a limiting table formed by inward protruding of the inner side wall of the water inlet interface, a plurality of limiting columns are arranged on the limiting table and arranged along the circumferential interval of the water inlet interface, and the inner edge of the limiting table is located on the inner side of the clamping table.

Furthermore, the end face of the joint facing the valve plate covers the gap between the free end and the fixed ring plate, and the end face abuts against the edge of the free end.

Furthermore, the outer end of the joint is integrally provided with a lug, and the water inlet mechanism further comprises a cylindrical fixing piece which is arranged in the lug in a penetrating manner and is fixedly connected with the assembly shell.

The utility model provides a tooth flushing device, which comprises a water inlet mechanism.

The utility model provides a water inlet mechanism, which comprises an assembly shell, a valve block component and a joint, wherein a flow passage and a water inlet interface communicated with the flow passage are arranged in the assembly shell, and a clamping table is arranged on the inner side wall of the water inlet interface along the circumferential direction of the water inlet interface; the valve block assembly is arranged in the water inlet interface and comprises a fixed ring piece and a valve block, the fixed ring piece is arranged in an annular shape, the valve block is arranged in an annular space of the fixed ring piece, one end of the valve block is a fixed end, the fixed end is fixedly connected to the annular inner wall of the fixed ring piece, the other end of the valve block is a free end, the free end and the inner wall of the fixed ring piece are arranged at intervals, and the fixed ring piece is arranged on the clamping table; the joint sleeve is arranged in the water inlet interface and is abutted against one side, far away from the clamping table, of the fixed ring piece so as to fix the fixed ring piece between the joint and the clamping table, the valve block is arranged corresponding to the water outlet of the joint, and the free end of the valve block can swing inwards under the action of pressure difference between the two sides by taking the fixed end of the valve block as an axial direction. The utility model discloses mechanism of intaking, the fixed ring piece of valve block subassembly is fixed to be set up, and the valve block can sealing joint's delivery port under natural state, and when the pressure in the inboard runner of valve block reduced, the valve block free end can be in the effect of the rivers in the joint down the inside hunting to open the valve block subassembly, make the delivery port of joint and the runner intercommunication of equipment shell, realize one-way intaking. The simple structure of valve block subassembly, assembly process is simple, specifically when the assembly, places the retaining ring piece of valve block subassembly earlier on the card platform towards outside side, then connects the cover to establish and assemble to the interface of intaking in, can press from both sides the valve block subassembly tightly between card platform and joint when connecting the fixing. The joint and the valve block only need to be fixed by means of the joint, the operation is convenient and fast, and the fixing structure of the joint and the valve block is simplified, so that the structure at the inlet of the joint is simpler.

The utility model provides a tooth flushing device, include the utility model provides a water inlet mechanism, with the utility model provides a water inlet mechanism has the same beneficial effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a water inlet mechanism provided in an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a schematic view of an assembly housing of a water inlet mechanism provided in an embodiment of the present invention;

fig. 5 is a schematic view of a valve plate of the water inlet mechanism provided by the embodiment of the present invention;

fig. 6 is a schematic view of a tooth rinsing device provided by an embodiment of the present invention;

fig. 7 is a partial cross-sectional view of fig. 6.

Icon: 100-assembling a shell; 101-a flow channel; 103-clamping table; 104-a projection; 105-a stop; 106-a spacing post; 107-water inlet interface; 108-sealing ring; 109-outlet check valve; 200-a linker; 210-a lug; 220-cylindrical fixing piece; 300-a valve plate assembly; 310-fixing ring sheets; 311-circular arc edge; 312-straight edge; 320-valve plate; 330-gap; 400-a nozzle sleeve; 500-a nozzle; 600-a buffer film mechanism; 700-a drive assembly; 710-an electromagnet; 720-permanent magnet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1 to 7, the present embodiment provides a water inlet mechanism, which includes an assembly housing 100, a valve plate assembly 300, and a joint 200, wherein a flow channel 101 and a water inlet port 107 communicated with the flow channel 101 are disposed in the assembly housing 100, and a clamping table 103 is disposed on an inner side wall of the water inlet port 107 along a circumferential direction of the water inlet port 107. Valve plate assembly 300 is installed in water inlet interface 107, and valve plate assembly 300 includes fixed ring piece 310 and valve plate 320, and fixed ring piece 310 is the annular setting, and valve plate 320 sets up in the annular space of fixed ring piece 310, and the one end of valve plate 320 is the stiff end, and stiff end fixed connection is on the annular inner wall of fixed ring piece 310, and the other end of valve plate 320 is the free end, and the free end sets up with the inner wall interval of fixed ring piece 310, and fixed ring piece 310 is installed on ka tai 103. The joint 200 is sleeved in the water inlet interface 107 and is abutted against one side of the fixed ring piece 310 far away from the clamping table 103 so as to fix the fixed ring piece 310 between the joint 200 and the clamping table 103, the valve plate 320 is arranged corresponding to the water outlet of the joint 200, and the free end of the valve plate 320 can swing under the action of water flow impact by taking the fixed end of the valve plate 320 as an axis.

As shown in fig. 3 and 4, the stepped surface of the clamping platform 103 faces the outside of the water inlet port 107 (the side close to the flow channel 101 is the inside, and the side far from the flow channel 101 is the outside) so as to facilitate the abutting of the fixing ring piece 310 with the clamping platform 103. Valve block 320 can adopt materials such as plastics, or the higher rubber of intensity, and it has certain intensity, and also has certain flexibility, makes valve block 320 can be swung and can not damaged around the stiff end.

The joint 200 of the water inlet mechanism of the present embodiment is connected to the water inlet pipe, and a sealing ring 108 is disposed between the circumferential side wall of the joint 200 and the inner side wall of the water inlet port 107 to prevent water leakage. The outer end of the joint 200 is integrally formed with a coupling lug 210, and a cylindrical fixing member 220 such as a screw or a bolt is coupled to the assembly case 100 through the coupling lug 210 to fix the joint 200.

The assembly shell 100 of the water inlet mechanism of the present embodiment is further provided with a water outlet port, the water outlet port is provided with an outlet check valve 109, the outlet check valve 109 is conical, the material of the outlet check valve is elastic material such as rubber and silica gel, and the top of the conical outlet port is provided with a split for controlling the water outlet of the water outlet port. Specifically, when the pressure in the flow passage 101 increases, the split opens to realize water discharge; in the natural state, the split is in the closed state.

The water outlet interface is also provided with a nozzle sleeve 400 which is used for connecting a nozzle 500 of the tooth flushing device; while the nozzle sleeve 400 compressively secures the outlet check valve 109 to the assembly housing 100.

In the water inlet mechanism of this embodiment, the fixing ring 310 of the valve plate assembly 300 is fixedly disposed, the valve plate 320 can seal the water outlet of the connector 200 in a natural state, and when the pressure in the flow channel 101 inside the valve plate 320 is reduced, the free end of the valve plate 320 can swing inward under the action of the water flow in the connector 200, so as to open the valve plate assembly 300, and the water outlet of the connector 200 is communicated with the flow channel 101 of the assembly shell 100, thereby realizing unidirectional water inlet. Valve block subassembly 300's simple structure, assembly process is simple, specifically when the assembly, places valve block subassembly 300's fixed ring piece 310 on calorie platform 103 towards outside side earlier, then connects 200 covers to establish and assemble to the interface 107 of intaking in, can press from both sides valve block subassembly 300 tightly between calorie platform 103 and joint 200 when connecting 200 is fixed. The joint 200 and the valve plate 320 only need to be fixed by the joint 200, the operation is convenient and quick, the fixing structure of the joint 200 and the valve plate 320 is simplified, and the structure of the inlet of the joint 200 is simpler.

Specifically, the free end of valve plate 320 is disposed in an arc shape, so that gap 330 extending in an arc shape is formed between valve plate 320 and fixing ring plate 310.

As shown in FIG. 5, valve plate 320 is similar to a "tongue" shape, and the gap 330 between the edge of valve plate 320 and retaining ring plate 310 extends in a U-shape. Preferably, the width of the gap 330 between the valve plate 320 and the stationary ring plate 310 is substantially the same.

It can be understood that the free end of valve plate 320 is arc-shaped, and valve plate 320 is fixed only at one end, and the circumferential side edge and the free end of valve plate 320 are both free, so that valve plate 320 can swing better, and further the water outlet of joint 200 is opened.

In this embodiment, the fixing ring plate 310 and the valve plate 320 are made of the same material and are integrally formed, specifically, they may be integrally formed by injection molding.

In a specific implementation manner, as shown in fig. 5, the outer contour line of the fixed ring plate 310 includes a circular arc-shaped edge 311 and a straight edge 312, the circular arc-shaped edge 311 and the straight edge 312 are connected end to form a closed loop, and the fixed end of the valve plate 320 is correspondingly connected to the inner side of the straight edge 312. As shown in FIG. 4, the side of the clamping platform 103 facing the valve plate assembly 300 is provided with a protrusion 104 matching with the linear edge 312, and the protrusion 104 is used for positioning the installation position of the fixing ring plate 310.

When the valve plate assembly 300 is in use, the linear edge 312 is aligned with the protrusion 104, so that the mounting position of the valve plate assembly 300 can be located. Limited by the effect of the convex part 104 and combined with the combined action of the inner side wall of the water inlet interface 107, the valve plate assembly 300 can be temporarily fixed and cannot rotate or fall off, the stability of the valve plate assembly 300 on the clamping table 103 before the installation of the joint 200 is improved, the assembly of the subsequent joint 200 is facilitated, and the installation efficiency is improved.

In order to avoid the influence on the state recovery of the valve plate 320 caused by the excessively large opening of the free end of the valve plate 320, a limiting portion is further disposed on one side of the clamping table 103 away from the joint 200 on the water inlet interface 107 in this embodiment, and the limiting portion is spaced from the valve plate assembly 300 and is used for limiting the inward swinging amplitude of the valve plate 320.

As shown in fig. 3, a limiting portion is disposed on the left side of the inner sidewall of the water inlet port 107, and the limiting portion is located on the inner side of the valve plate 320 and spaced from the valve plate 320. Specifically, the limiting portion comprises a limiting table 105 formed by inward protruding of the inner side wall of the water inlet interface 107, a plurality of limiting columns 106 are arranged on the limiting table 105, the plurality of limiting columns 106 are arranged along the circumferential interval of the water inlet interface 107, and the inner edge of the limiting table 105 is located on the inner side of the clamping table 103. As shown in fig. 4, the number of the limiting columns 106 in this embodiment is 4, the 4 limiting columns 106 are uniformly distributed along the circumferential direction of the limiting table 105, and the end surfaces of the limiting columns 106 are substantially elliptical planes.

When valve plate 320 swings inward, gap 330 between valve plate 320 and fixed ring plate 310 increases, the inner side and the outer side of valve plate assembly 300 communicate, and water in joint 200 flows into flow passage 101. At this time, the valve plate 320 can abut against the end face of the limiting column 106, the limiting column 106 limits the swing amplitude of the valve plate 320, and the valve plate 320 is prevented from being difficult to restore to a natural state due to too large swing.

It should be noted that, in a natural state, the valve plate 320 and the fixed ring plate 310 are substantially in the same plane, and at this time, the valve plate assembly 300 seals the water outlet of the joint 200.

The end surface of the joint 200 facing the valve plate 320 of the present embodiment covers the gap 330 between the free end and the fixing ring plate 310, and the end surface abuts against the edge of the free end.

It can be understood that, as shown in fig. 3, the end surface of the joint 200 covers the gap 330 between the fixed ring plate 310 and the valve plate 320, so as to ensure that the valve plate 320 seals the water outlet of the joint 200 in a natural state, and prevent water from entering the flow channel 101 from the gap 330. And the terminal surface of joint 200 can the free end butt of valve block 320, can form the outside of valve block 320 spacing, avoids valve block 320 outwards to swing, and leads to rivers backward flow.

The embodiment also provides a tooth flushing device, which comprises the water inlet mechanism and the nozzle 500 provided by the embodiment. Specifically, the nozzle 500 is fitted on the nozzle sleeve 400. The water inlet mechanism of the tooth flushing device of the present embodiment further includes a driving assembly 700 and an acting element, the driving assembly 700 is connected with the acting element, the acting element is connected with the assembling shell 100, and the driving assembly 700 drives the acting element to move so as to change the pressure in the flow channel 101.

Specifically, the acting element is a buffer film mechanism 600, the buffer film mechanism 600 is installed at the lower end of the assembly shell 100 and is connected with the bottom end face of the assembly shell 100 in a sealing manner, a cavity is formed between the upper side of the buffer film mechanism 600 and the lower side of the assembly shell 100, and the cavity is communicated with the flow channel 101 of the assembly shell 100. The driving assembly 700 includes a permanent magnet 720 and an electromagnet 710, the permanent magnet 720 may be a cylindrical magnet, the permanent magnet 720 is connected to the buffer film mechanism 600, two poles of the permanent magnet 720 are respectively located at a first end and a second end opposite thereto, and the first end is closer to an inner sidewall of the buffer film mechanism 600 than the second end, for example, an N pole and an S pole of the permanent magnet 720 are arranged in an up-down direction. The electromagnet 710 is located outside the second end of the permanent magnet 720, the direction of the magnetic field of the electromagnet 710 is adjustable by changing the direction of the current, and the electromagnet 710 is used for repelling the permanent magnet 720 or attracting the permanent magnet 720, so that the permanent magnet 720 pushes the buffer film mechanism 600 to move towards the inner side of the cavity or pulls the buffer film mechanism 600 towards the outer side of the cavity.

When the water-saving buffer membrane device is used, the driving assembly 700 is used for performing reciprocating push-pull motion on the buffer membrane mechanism 600, when the electromagnet 710 is controlled to attract the permanent magnet 720, the driving assembly 700 can pull the buffer membrane mechanism 600 from inside to outside, so that the buffer membrane mechanism 600 deforms towards the outside of the cavity, the volume inside the cavity is increased, and outside water can enter the cavity from the water inlet through the valve plate assembly 300; when the control electromagnet 710 repels the permanent magnet 720, the driving assembly 700 pushes the buffer film mechanism 600 from outside to inside, so that the buffer film mechanism 600 deforms toward the inside of the cavity, the volume inside the cavity is reduced, and water in the cavity can be sprayed out from the water outlet through the outlet check valve 109.

The tooth flushing device of the embodiment utilizes the buffer film mechanism 600 with a certain deformation amount to realize the change of the volume of the cavity, and further change the pressure in the cavity, thereby realizing the water pumping and water spraying actions of the cavity. The driving assembly 700 is located on the outer side of the cavity, the overall sealing performance of the cavity is better, and the service life of the stamping device is prolonged.

It should be noted that the elastic diaphragm structure may be made of soft and elastic materials such as rubber, silica gel, and latex, and the driving assembly 700 and the acting element are not limited to the form given in this embodiment, as long as the pressure change of the fluid channel can be realized, for example, the form of a linear motor matching with a piston, and the like.

The tooth flushing device has the same beneficial effects as the water inlet mechanism.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The water inlet mechanism is characterized by comprising an assembly shell (100), a valve plate assembly (300) and a connector (200), wherein a flow channel (101) and a water inlet interface (107) communicated with the flow channel (101) are arranged in the assembly shell (100), and a clamping table (103) is arranged on the inner side wall of the water inlet interface (107) along the circumferential direction of the water inlet interface (107);

the valve plate assembly (300) is installed in the water inlet connector (107), the valve plate assembly (300) comprises a fixed ring plate (310) and a valve plate (320), the fixed ring plate (310) is arranged in an annular shape, the valve plate (320) is arranged in an annular space of the fixed ring plate (310), one end of the valve plate (320) is a fixed end and fixedly connected to the annular inner wall of the fixed ring plate (310), the other end of the valve plate (320) is a free end, the free end and the inner wall of the fixed ring plate (310) are arranged at intervals, and the fixed ring plate (310) is installed on the clamping table (103);

connect (200) cover to be established in water inlet (107) and with fixed ring piece (310) is kept away from one side butt of card platform (103), in order to incite somebody to action fixed ring piece (310) is fixed connect (200) with between card platform (103), valve block (320) correspond the delivery port setting of joint (200), the free end of valve block (320) can be under the effect of both sides pressure differential with the stiff end of valve block (320) is the axial swing inwards.

2. The mechanism of claim 1, wherein the free end of the valve plate (320) is disposed in an arc shape, such that an arc-shaped extending gap (330) is formed between the valve plate (320) and the fixed ring plate (310).

3. Mechanism according to claim 2, wherein said gap (330) extends in a U-shape.

4. The water inlet mechanism is characterized in that the outer contour line of the fixed ring piece (310) comprises a circular arc-shaped edge (311) and a straight edge (312), the circular arc-shaped edge (311) and the straight edge (312) are connected end to form a closed loop, and the fixed end of the valve piece (320) is correspondingly connected to the inner side of the straight edge (312);

one side of the clamping table (103) facing the valve plate assembly (300) is provided with a protruding portion (104) matched with the linear edge (312), and the protruding portion (104) is used for positioning the installation position of the fixed ring piece (310).

5. The water inlet mechanism as claimed in any one of claims 1 to 4, wherein the fixing ring piece (310) and the valve piece (320) are made of the same material and are integrally formed.

6. The water inlet mechanism according to any one of claims 1 to 4, wherein a limiting portion is further disposed on an inner side wall of the water inlet interface (107) on a side of the clamping table (103) far away from the joint (200), and the limiting portion and the valve plate assembly (300) are arranged at an interval and used for limiting the inward swinging amplitude of the valve plate (320).

7. The water inlet mechanism according to claim 6, characterized in that the limiting part comprises a limiting platform (105) formed by inward protruding of the inner side wall of the water inlet interface (107), a plurality of limiting columns (106) are arranged on the limiting platform (105), the plurality of limiting columns (106) are arranged at intervals along the circumferential direction of the water inlet interface (107), and the inner edge of the limiting platform (105) is located at the inner side of the clamping platform (103).

8. Mechanism according to claim 6, characterized in that the end face of the joint (200) facing the valve plate (320) covers the gap (330) between the free end and the fixed ring plate (310) and abuts against the edge of the free end.

9. The water inlet mechanism according to any one of claims 1 to 4, characterized in that the outer end of the joint (200) is integrally formed with a lug (210), and the water inlet mechanism further comprises a cylindrical fixing member (220), wherein the cylindrical fixing member (220) is arranged in the lug (210) in a penetrating way and is fixedly connected with the assembling shell (100).

10. A dental irrigator comprising a water inlet mechanism according to any one of claims 1 to 9.

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