CN211174571U - Liquid inlet pump valve structure and oral cavity cleaning device - Google Patents

Abstract

The utility model discloses a feed liquor pump valve structure and oral cavity cleaning device belongs to clean tooth technical field. The utility model discloses liquid feed pump valve structure includes pump casing, piston, feed liquor valve block and feed liquor end cover, and the pump casing is equipped with piston chamber, feed liquor chamber and goes out the sap cavity, and the feed liquor valve block has feed liquor valve block fixed part and feed liquor valve block tongue portion of living, and the feed liquor chamber is equipped with feed liquor recess and feed liquor groove dam, and the feed liquor end cover is equipped with into liquid pipeline and feed liquor cooperation portion, and feed liquor valve block fixed part is arranged in between feed liquor cooperation portion and the feed liquor groove dam. The utility model discloses oral cavity cleaning device includes shell, liquid reserve tank, motor, spray tube and as above feed liquor pump valve structure. The utility model discloses flexible swing in the feed liquor recess can be in the feed liquor tongue portion of living of feed liquor valve piece of liquid pump valve structure, and then realizes the switching function of liquid pump valve, simple structure, be convenient for processing and low cost.

Description

Liquid inlet pump valve structure and oral cavity cleaning device

Technical Field

The utility model relates to a clean tooth technical field especially relates to a feed liquor pump valve structure and oral cavity cleaning device.

Background

In the prior art, a dental irrigator generally comprises a housing, a pump, a reservoir, a motor, a nozzle and associated fluid lines. The motor and the pump driven by the motor are both arranged in the accommodating cavity enclosed by the shell and directly or indirectly carried by the shell. The water pumped out from the liquid storage tank by the pump is sprayed out from the sharp mouth end of the spray pipe in a pulse water flow mode, and then teeth, slits between teeth, gums or tongues are cleaned.

The pump usually adopts a piston pump, and consists of a pump cylinder, a piston, a water inlet valve, a water outlet valve and the like, and the motor drives the piston to reciprocate in the pump cylinder. When the piston moves outwards relative to the pump cylinder and the working volume of the pump cylinder is increased, the water inlet valve is opened, the water outlet valve is closed, and water enters the pump cylinder from the liquid storage tank under the action of pressure; when the piston moves inwards relative to the pump cylinder and the working volume of the pump cylinder is reduced, the water outlet valve is opened, the water inlet valve is closed, and water is discharged from the pump cylinder under the action of pressure. The reciprocating motion of the piston is matched with the periodical opening and closing of the water inlet and outlet valve, so that the function of sucking and discharging liquid by the piston pump can be realized. The structure of the water inlet valve in the prior art is complex, so that a liquid inlet pump valve structure with a simple structure and an oral cavity cleaning device applying the liquid inlet pump valve structure are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an oral cavity cleaning device of comparatively simple structure's feed liquor pump valve structure and applied this feed liquor pump valve structure is provided.

For solving the technical problem, the utility model provides a feed liquor pump valve structure, including pump casing, piston, feed liquor valve block and feed liquor end cover, the pump casing is equipped with piston chamber, feed liquor chamber and goes out the sap cavity, the piston place in among the piston chamber, the feed liquor chamber go out the sap cavity all with piston chamber intercommunication, the feed liquor valve block has feed liquor valve block fixed part and feed liquor valve block tongue portion of living, the feed liquor chamber is equipped with feed liquor recess and feed liquor groove dam, the feed liquor end cover is equipped with into the liquid pipeline and arranges in feed liquor cooperation portion in the feed liquor chamber, feed liquor valve block fixed part is arranged in feed liquor cooperation portion with between the feed liquor groove dam.

The utility model also provides an oral cleaning device, including shell, liquid reserve tank, motor, spray tube and as above feed liquor pump valve structure, the motor and feed liquor pump valve structure all arranges in among the shell, the liquid reserve tank with feed liquor pipeline fluid intercommunication.

The utility model has the advantages that:

the liquid inlet valve piece movable tongue part of the liquid inlet pump valve structure can flexibly swing in the liquid inlet groove, when the piston moves outwards relative to the piston cavity and the working volume of the piston cavity is increased, the liquid inlet valve piece movable tongue part generates flexible bending towards the liquid inlet groove, a liquid inlet pipeline of the liquid inlet end cover can be in fluid communication with the liquid inlet cavity and the piston cavity, and the liquid inlet pump valve is in an open state at the moment; when the piston moves inwards relative to the piston cavity and the working volume of the piston cavity is reduced, the movable tongue part of the liquid inlet valve piece is tightly attached to the liquid inlet end cover to seal the liquid inlet pipeline, and the liquid inlet pump valve is in a closed state at the moment. The liquid inlet pump valve of the utility model has simple structure, convenient processing and low cost; the utility model discloses this feed liquor pump valve structure is used to oral cavity cleaning device, can guarantee stability and accuracy when the pump feed liquor.

Drawings

Fig. 1 is a schematic view of the overall structure of an oral cleaning device.

Fig. 2 is a schematic view of the overall structure of the hidden housing and the reservoir of the oral cleaning device.

Fig. 3 is an exploded view of the oral cleaning device.

Fig. 4 is a schematic view of another angle exploded structure of the oral cleaning device.

Fig. 5 is a schematic structural diagram of a pump valve structure (including a liquid inlet pump valve and a liquid outlet pump valve) of the oral cleaning device.

Figure 6 is an exploded view of the pump valve structure of the oral cleaning device of figure 5.

Figure 7 is a cross-sectional view of the pump valve structure of the oral cleaning device of figure 5.

Fig. 8 is a partial enlarged view at a in fig. 7.

Fig. 9 is a partial enlarged view at B in fig. 7.

Figure 10 is another angled cross-sectional view of the pump valve structure of the oral cleaning device shown in figure 5.

Fig. 11 is a partial enlarged view at C in fig. 10.

Figure 12 is a schematic diagram of an alternative embodiment of a pump valve structure for an oral cleaning device.

Fig. 13 is a schematic structural view of a pump housing.

FIG. 14 is a schematic view of another angular configuration of the pump housing.

FIG. 15 is a cross-sectional view of the pump housing.

Fig. 16 is a partial enlarged view at D in fig. 15.

Fig. 17 is a schematic diagram of a structure of a liquid inlet end cap.

Fig. 18 is a cross-sectional view of the inlet end cap of fig. 17.

Fig. 19 is a schematic structural view of a liquid outlet end cover.

Fig. 20 is a cross-sectional view of the liquid outlet end cap shown in fig. 19.

Fig. 21 is a partial enlarged view at E in fig. 20.

Fig. 22 is a schematic diagram of a structure of the liquid inlet valve sheet.

Fig. 23 is another structural schematic diagram of the liquid inlet valve sheet.

FIG. 24 is a schematic view of a structure of a liquid outlet valve plate.

FIG. 25 is another structural diagram of the liquid outlet valve plate.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to the specific implementation conditions. The utility model provides an each technical feature can the interactive combination under the prerequisite of conflict each other.

In the present invention, the terms of the position expression are not limited to absolute terms, but are used to explain the specific structure of each member, the connection relationship between each member, and the positional relationship with each other, in conjunction with the drawings. In addition, all the "communication" in the present invention means a state that two or more members are essentially communicated with each other, and includes not only the communication formed by direct connection, but also "indirect communication", that is, two or more members are not directly connected, but indirectly connected through one or more members, thereby realizing a physical fluid passage structure.

As shown in fig. 1 to 4, the oral cleaning device includes a housing 100, a reservoir 200, a motor 300, a piston 310, a battery 320, a pump housing 400, an inner housing 110, a suction pipe 340, a panel assembly, and a nozzle 330. Wherein, the outer shell 100 and the inner shell 110 can both adopt one or a combination of several of plastic polymer materials and carbon composite materials.

As shown in fig. 1, 3 and 4, the casing 100 includes a first casing half 101 and a second casing half 102, the first casing half 101 has a panel key hole 103, an indicator light hole 104, a charging hole 105 and a casing pipeline 106, and the second casing half 102 has an anti-slip bump 107 on an outer surface thereof. The piston 310, the battery 320, the pump housing 400 and the inner housing 110 are all disposed in a cavity defined by the first half housing 101 and the second half housing 102. In this embodiment, the first half case 101 and the second half case 102 are fixedly connected by screws, but in other embodiments, the first half case and the second half case may be fixedly connected by bonding, plastic welding, or the like.

As shown in fig. 1, 3 and 4, the reservoir 200 is disposed below the housing 100 and has a cavity structure capable of containing liquid.

As shown in fig. 1, 3 and 4, the side of the liquid storage tank 200 is provided with a side opening 202 for filling or pouring the liquid, and a side cover 203 is provided at the side opening 202. One end of the side cover 203 forms a pivot hinge structure with the liquid storage tank 200, and the other end is connected with the liquid storage tank 200 in a buckling manner.

One end of the liquid storage tank 200 abutting against the housing 100 is provided with a top opening 201, and the water suction pipe 340 enters the liquid storage tank 200 through the top opening 201. The periphery of the top opening 201 is provided with a liquid storage sealing groove 204, and a liquid storage sealing ring 205 is arranged in the liquid storage sealing groove 204, so that the waterproof sealing effect of connection between the liquid storage tank 200 and the shell 100 is realized.

As shown in fig. 2 to 4, one end of the water suction pipe 340 communicates with the shell pipe 106 of the first half shell 101, and the shell pipe 106 communicates with the pump housing 400 through the inner pipe 360; the other end of the water absorbing pipe 340 is connected with a weight unit 341. The water absorbing pipe 340 is preferably made of silicone, TPE or other soft material, and can be bent adaptively by the gravity of the weight unit 341.

The inner tube 360 is also preferably made of soft materials such as silicone rubber and TPE soft rubber, which can reduce the transmission of vibration to the housing 100 during the operation of the pump.

The panel assembly includes a button 380, a circuit board 381, an indicator light 382, etc. for the user to directly send instructions to the oral cleaning device for starting, suspending, shutting down, regulating pressure, etc., and to light different indicator lights for different working states.

The inner housing 110 has a function of fixing the motor 300 and the pump housing 400, and is provided with an inner sealing ring 390 for sealing to prevent liquid from flowing into the panel assembly and the battery part when the oral cleaning device is in normal operation.

As shown in fig. 3 to 25, the liquid inlet pump valve structure includes a pump housing 400, a piston 310, a liquid inlet valve sheet 520 and a liquid inlet end cap 500, the pump housing 400 is provided with a piston cavity 420, a liquid inlet cavity 440 and a liquid outlet cavity 460, the piston 310 is placed in the piston cavity 420, both the liquid inlet cavity 440 and the liquid outlet cavity 460 are communicated with the piston cavity 420, the liquid inlet valve sheet 520 is provided with a liquid inlet valve sheet fixing portion 521 and a liquid inlet valve sheet tongue portion 522, the liquid inlet cavity 440 is provided with a liquid inlet groove 441 and a liquid inlet groove dam 442, the liquid inlet end cap 500 is provided with a liquid inlet pipeline 501 and a liquid inlet matching portion 502 disposed in the liquid inlet cavity 440, and the liquid inlet valve sheet fixing portion 521 is disposed.

As shown in fig. 13 and 16, the liquid inlet groove 441 is provided with a first liquid inlet groove wall 443, a second liquid inlet groove wall 444, and a third liquid inlet groove wall 446, the height of the first liquid inlet groove wall 443 with respect to the bottom surface of the liquid inlet groove 441 is the same as the height of the liquid inlet groove dam 442 with respect to the bottom surface of the liquid inlet groove 441, and the height of the second liquid inlet groove wall 444 with respect to the bottom surface of the liquid inlet groove 441 is lower than the height of the first liquid inlet groove wall 443 with respect to the bottom surface of the liquid inlet groove 441.

As shown in fig. 11, 13, 15, and 16, the pump housing 400 is provided with a liquid inlet hole 445 that communicates the piston chamber 420 with the liquid inlet chamber 440, a third liquid inlet groove wall 446 is provided around the liquid inlet hole 445, and the height of the third liquid inlet groove wall 446 with respect to the bottom surface of the liquid inlet groove 441 is lower than the height of the first liquid inlet groove wall 443 with respect to the bottom surface of the liquid inlet groove 441. Preferably, the height of the second liquid-inlet groove wall 444 with respect to the bottom surface of the liquid-inlet groove 441 is the same as the height of the third liquid-inlet groove wall 446 with respect to the bottom surface of the liquid-inlet groove 441.

As shown in fig. 13, 16 to 18, 22 and 23, a liquid inlet positioning wall 447 is further disposed in the liquid inlet cavity 440, a liquid inlet positioning notch 503 is disposed at a position of the liquid inlet matching portion 502 corresponding to the liquid inlet positioning wall 447, and a liquid inlet valve sheet notch 523 is disposed at a position of the liquid inlet valve sheet 520 corresponding to the liquid inlet positioning wall 447.

As shown in fig. 6, 9, 12, 17, and 18, the liquid inlet fitting portion 502 is provided with a liquid inlet ring groove 504, and a liquid inlet seal ring 505 is provided in the liquid inlet ring groove 504 to seal the connection between the pump housing 400 and the liquid inlet end cap 500.

As shown in fig. 22 and 23, the combined profile of the inlet valve sheet fixing portion 521 and the inlet valve sheet movable tongue portion 522 is in a shape of "convex", which does not mean a completely precise "convex", but is similar to the "convex", for example, each side may have a certain radian or a corner may be rounded. In different embodiments, the inlet valve sheet fixing portion 521 may be extended from both sides thereof with a first inlet valve sheet wing portion 524 and a second inlet valve sheet wing portion 525.

As shown in fig. 3 to 25, the liquid outlet pump valve structure includes a pump housing 400, a piston 310, a liquid outlet valve sheet 620 and a liquid outlet end cap 600, the liquid outlet valve sheet 620 has a liquid outlet valve sheet fixing portion 621 and a liquid outlet valve sheet movable tongue portion 622, the liquid outlet end cap 600 has a liquid outlet pipe 601 and a liquid outlet matching portion 602 disposed in the liquid outlet cavity 460, the liquid outlet matching portion 602 has a liquid outlet groove 603 and a liquid outlet groove dam 604, and the liquid outlet valve sheet fixing portion 621 is disposed between the bottom surface of the liquid outlet cavity 460 and the liquid outlet groove dam 604.

As shown in fig. 19 and 21, a first liquid outlet groove wall 605, a second liquid outlet groove wall 606 and a third liquid outlet groove wall 607 are arranged in the liquid outlet groove 603, the height of the first liquid outlet groove wall 605 relative to the bottom surface of the liquid outlet groove 603 is the same as the height of the liquid outlet groove dam 604 relative to the bottom surface of the liquid outlet groove 603, the height of the second liquid outlet groove wall 606 relative to the bottom surface of the liquid outlet groove 603 is lower than the height of the first liquid outlet groove wall 605 relative to the bottom surface of the liquid outlet groove 603, and the third liquid outlet groove wall 607 surrounds the end opening of the liquid outlet pipeline 601

As shown in fig. 11, 15, 19 and 21, the pump housing 400 is provided with a liquid outlet hole 461 communicating the piston chamber 420 and the liquid outlet chamber 460, and the height of the third liquid outlet groove wall 607 with respect to the bottom surface of the liquid outlet groove 603 is lower than the height of the first liquid outlet groove wall 605 with respect to the bottom surface of the liquid outlet groove 603.

As shown in fig. 8, 19 to 21, it is preferable that the height of the second liquid-exit groove wall 606 with respect to the bottom surface of the liquid-exit groove 603 is the same as the height of the third liquid-exit groove wall 607 with respect to the bottom surface of the liquid-exit groove 603.

As shown in fig. 6, 12, 14, 15, 19 to 21, 24 and 25, a liquid outlet positioning wall 462 is disposed in the liquid outlet cavity 460, a liquid outlet positioning notch 608 is disposed at a position of the liquid outlet matching portion 602 corresponding to the liquid outlet positioning wall 462, and a liquid outlet valve sheet notch 623 is disposed at a position of the liquid outlet valve sheet 620 corresponding to the liquid outlet positioning wall 462.

As shown in fig. 6, 8, 11, 12, 19 and 20, the liquid outlet matching part 602 is provided with a liquid outlet ring groove 609, and a liquid outlet sealing ring 610 is arranged in the liquid outlet ring groove 609 and is used for sealing the connection between the pump casing 400 and the liquid outlet end cover 600.

As shown in fig. 24 and 25, the combined contour of the liquid outlet valve sheet fixing portion 621 and the liquid outlet valve sheet movable tongue portion 622 is in a "convex" shape, which does not mean a completely precise "convex" shape, but is similar to the "convex" shape, for example, each side may have a certain radian or a corner may be made into a round corner, etc. In other embodiments, the first and second outlet valve sheet wing portions 624 and 625 can extend from the two sides of the outlet valve sheet fixing portion 621.

As shown in fig. 2 to 4, 8, 9, 18, 20 and 21, the water suction pipe 340 is communicated with the liquid inlet pipe 501 of the liquid inlet end cap 500 through the shell pipe 106 and the inner pipe 360, the liquid outlet pipe 601 of the liquid outlet end cap 600 is communicated with the spray pipe 330, and the linear reciprocating motion of the piston 310 in the pump shell 400 enables the water suction pipe 340 to suck liquid from the liquid storage tank 200 and spray the liquid from the tip of the spray pipe 330 through the pipes so as to clean teeth.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims (11)

1. Feed liquor pump valve structure, including pump casing, piston, its characterized in that: still include feed liquor valve block and feed liquor end cover, the pump case body is equipped with piston chamber, feed liquor chamber and goes out the sap cavity, the piston place in among the piston chamber, the feed liquor chamber go out the sap cavity all with piston chamber intercommunication, the feed liquor valve block has feed liquor valve block fixed part and feed liquor valve block tongue portion of living, the feed liquor chamber is equipped with feed liquor recess and feed liquor groove dam, the feed liquor end cover is equipped with into the liquid pipeline and arranges in feed liquor cooperation portion in the feed liquor chamber, feed liquor valve block fixed part is arranged in feed liquor cooperation portion with between the feed liquor groove dam.

2. A liquid inlet pump valve structure as claimed in claim 1, characterized in that: and a first liquid inlet groove wall is arranged in the liquid inlet groove.

3. A liquid inlet pump valve structure as claimed in claim 2, characterized in that: the height of the first liquid inlet groove wall relative to the bottom surface of the liquid inlet groove is the same as the height of the liquid inlet groove dam relative to the bottom surface of the liquid inlet groove.

4. A liquid inlet pump valve structure as claimed in claim 3, characterized in that: and a second liquid inlet groove wall is arranged in the liquid inlet groove, and the height of the second liquid inlet groove wall relative to the bottom surface of the liquid inlet groove is lower than that of the first liquid inlet groove wall relative to the bottom surface of the liquid inlet groove.

5. A liquid inlet pump valve structure as claimed in claim 4, characterized in that: the pump casing is provided with a liquid inlet hole for communicating the piston cavity with the liquid inlet cavity, a third liquid inlet groove wall is arranged in the liquid inlet groove and around the liquid inlet hole, and the height of the third liquid inlet groove wall relative to the bottom surface of the liquid inlet groove is lower than that of the first liquid inlet groove wall relative to the bottom surface of the liquid inlet groove.

6. A liquid inlet pump valve structure as claimed in claim 5, characterized in that: the height of the second liquid inlet groove wall relative to the bottom surface of the liquid inlet groove is the same as the height of the third liquid inlet groove wall relative to the bottom surface of the liquid inlet groove.

7. A liquid inlet pump valve structure as claimed in claim 1, characterized in that: the liquid inlet valve is characterized in that a liquid inlet positioning wall is arranged in the liquid inlet cavity, a liquid inlet positioning notch is formed in the position, corresponding to the liquid inlet positioning wall, of the liquid inlet matching part, and a liquid inlet valve sheet notch is formed in the position, corresponding to the liquid inlet positioning wall, of the liquid inlet valve sheet.

8. A liquid inlet pump valve structure as claimed in claim 1, characterized in that: the liquid inlet matching part is provided with a liquid inlet ring groove, and a liquid inlet sealing ring is arranged in the liquid inlet ring groove.

9. A liquid inlet pump valve structure according to any of claims 1 to 8, characterized in that: the outline shape of the liquid inlet valve plate fixing part and the liquid inlet valve plate movable tongue part combination is in a convex shape.

10. The intake pump valve structure as claimed in claim 9, wherein: and a first wing part and a second wing part of the liquid inlet valve plate are respectively arranged on two sides of the fixed part of the liquid inlet valve plate in an extending manner.

11. Oral cavity cleaning device, including shell, liquid reserve tank, motor and spray tube, its characterized in that: further comprising an intake pump valve arrangement as claimed in any one of claims 1 to 10, said motor and said intake pump valve arrangement being disposed within said housing, said tank being in fluid communication with said intake conduit.

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