CN216823741U - Tooth flushing device - Google Patents
Tooth flushing device Download PDFInfo
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- CN216823741U CN216823741U CN202123232721.XU CN202123232721U CN216823741U CN 216823741 U CN216823741 U CN 216823741U CN 202123232721 U CN202123232721 U CN 202123232721U CN 216823741 U CN216823741 U CN 216823741U
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Abstract
The utility model discloses a tooth flushing device, include: the main machine body is provided with a transfusion channel, a liquid inlet and a liquid outlet; the nozzle is connected with the main machine body and communicated with the liquid outlet; the liquid storage tank is connected with the main machine body and communicated with the liquid inlet; the liquid outlet one-way valve is arranged in the infusion channel and allows the liquid in the infusion channel to enter the nozzle and prevents the liquid in the nozzle from entering the infusion channel; the pump body is used for driving liquid to flow from the liquid inlet to the liquid outlet; the pump body is in an opening state and a stopping state, when the pump body is in the opening state, the pump body drives liquid in the infusion channel to flow, the liquid outlet one-way valve is opened under the impact of the liquid, the liquid in the infusion channel flows to the nozzle, when the pump body is in the stopping state, the liquid outlet one-way valve closes the infusion channel, the liquid in the infusion channel stops flowing to the nozzle, and the liquid level in the nozzle is kept unchanged under the action of pressure difference. The nozzle of the tooth flushing device can store liquid, and the restarting time is shortened.
Description
Technical Field
The utility model belongs to the technical field of the clean technique of oral cavity and specifically relates to a towards tooth ware.
Background
The tooth flusher is used for flushing food residues, dental plaque bacteria and the like in hidden places such as interdental spaces, under gum, tooth hoops and the like through ejected strong pulse water flow so as to achieve the purposes of cleaning teeth and improving gum.
When a user uses the tooth flushing device, the nozzle of the tooth flushing device is opposite to teeth, and water columns sprayed out of the nozzle have certain impact force to flush away dirty objects between the teeth and gaps between the teeth. During the use process, the user may adjust the posture of holding the tooth irrigator, at this time, the tooth irrigator needs to be adjusted to be in a pause state, and after the posture of the user is adjusted, the tooth irrigator is started again.
The tooth rinsing device in the related art cannot realize quick restart of the tooth rinsing device, and the waiting time of a user is long.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a tooth rinsing device, the nozzle of which can store liquid, thereby reducing the restart time.
In order to achieve the above object, an embodiment of the present invention provides a tooth rinsing device, including: the main machine body is provided with a liquid conveying channel, a liquid inlet and a liquid outlet which are communicated with the liquid conveying channel; the nozzle is connected with the main machine body and communicated with the liquid outlet; the liquid storage tank is connected with the main machine body and communicated with the liquid inlet; the liquid outlet one-way valve is arranged in the infusion channel and allows the liquid in the infusion channel to enter the nozzle and prevents the liquid in the nozzle from entering the infusion channel; a pump body for driving liquid to flow from the liquid inlet to the liquid outlet; the pump body is in an open state and a stop state, when the pump body is in the open state, the pump body drives the liquid in the infusion channel to flow and opens the liquid outlet one-way valve under the impact of the liquid, so that the liquid in the infusion channel flows to the nozzle, when the pump body is in the stop state, the liquid outlet one-way valve closes the infusion channel, the liquid in the infusion channel stops flowing to the nozzle, and the liquid level in the nozzle is kept unchanged under the action of pressure difference.
According to the utility model discloses towards tooth ware's nozzle can store liquid to the realization reduces the purpose of restart time.
According to some embodiments of the utility model, the nozzle insert in the infusion passageway and with be equipped with out the liquid sealing washer between the inner wall of infusion passageway.
According to some embodiments of the invention, the main body comprises: the liquid injection device comprises a host shell and a first liquid channel piece, wherein the first liquid channel piece is arranged on the host shell and is provided with a liquid outlet, one end of the first liquid channel piece is connected with the nozzle, and one part of the liquid conveying channel is arranged on the first liquid channel piece; the second liquid channel piece is installed on the host shell, the second liquid channel piece is connected with the other end of the first liquid channel piece and is provided with the liquid inlet, the other part of the infusion channel is arranged on the second liquid channel piece, and the first liquid channel piece and the second liquid channel piece clamp the liquid outlet one-way valve.
According to some embodiments of the utility model, be equipped with backstop portion in the second liquid way spare, first liquid way spare insert the second liquid way spare and with the backstop portion centre gripping go out the liquid check valve, the outer peripheral face of first liquid way spare with be equipped with the liquid way sealing washer between the inner peripheral face of second liquid way spare.
According to some embodiments of the invention, the outer peripheral surface of the first liquid passage member is provided with a stop ring edge, which stops at the orientation of the second liquid passage member at the one end of the nozzle.
According to the utility model discloses a some embodiments, go out liquid check valve and include: a base clamped by the stopper portion and the first liquid passage member in a thickness direction thereof; the boss section is connected with one end of the base, which is back to the second liquid channel piece, and the boss section extends into the first liquid channel piece; the inclined surface section is connected with one end, back to the second liquid channel piece, of the boss section, and is provided with a first side wall and a second side wall which are opposite to each other, the distance between the outer surface of the first side wall and the outer surface of the second side wall is gradually reduced, and the distance between the inner surface of the first side wall and the inner surface of the second side wall is gradually reduced; the straight line section is connected with one end, back to the second liquid channel piece, of the inclined plane section, and is provided with a third side wall and a fourth side wall which are opposite to each other, the third side wall is connected with the first side wall, and the fourth side wall is connected with the second side wall; when the pump body is in the open state, the pump body drives the liquid in the infusion channel to flow from the inner side of the base, the inner side of the boss section and the inner side of the inclined surface section to the inner side of the straight section, and the liquid pushes the third side wall and the fourth side wall to move away from each other to continue flowing to the nozzle; when the pump body is in the stop state, liquid between the liquid outlet one-way valve and the nozzle is pressed on the outer side of the third side wall, the outer side of the fourth side wall, the outer side of the first side wall and the outer side of the second side wall, the third side wall and the fourth side wall are pushed to be close to and attached to each other, the first side wall and the second side wall are close to and attached to each other, and the straight section closes the infusion channel.
According to some embodiments of the invention, the dental irrigator further comprises: feed liquor check valve, the feed liquor check valve is located being close to of infusion passageway one side of income liquid mouth, the feed liquor check valve allows liquid in the liquid reserve tank gets into infusion passageway and prevention liquid in the infusion passageway gets into the liquid reserve tank.
According to some embodiments of the invention, the dental irrigator further comprises: the infusion seat is provided with a liquid inlet channel communicated with the infusion channel, one part of the infusion seat is inserted into the infusion channel from the liquid inlet, and the other part of the infusion seat is positioned outside the infusion channel; the liquid inlet one-way valve is abutted to one side of the infusion seat, which is back to the infusion hose, and at least one part of the liquid inlet one-way valve covers the liquid inlet channel; when the pressure in the liquid inlet channel is higher than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, at least one part of the liquid inlet one-way valve is pushed by pressure difference to move in the direction away from the infusion seat to open the liquid inlet channel, so that the liquid inlet channel is communicated with the infusion channel; when the pressure in the liquid inlet channel is not more than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, at least one part of the liquid inlet one-way valve resets to close the liquid inlet channel, so that the liquid inlet channel is disconnected with the infusion channel.
According to some embodiments of the present invention, a liquid inlet seal ring is provided between the outer peripheral surface of the part of the infusion seat and the inner wall of the infusion channel.
According to some embodiments of the present invention, a support seat is provided in the infusion channel, the liquid inlet check valve is clamped between the support seat and the infusion seat, and an avoiding groove is provided on one side of the support seat facing the liquid inlet; the feed liquor check valve includes: the annular seat is clamped between the supporting seat and the infusion seat and surrounds the avoidance groove; one end of the movable tongue is connected with the inner circumferential surface of the annular seat, the other end of the movable tongue moves relative to the annular seat, and the movable tongue covers the liquid inlet channel; when the pressure in the liquid inlet channel is higher than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, the movable tongue is pushed by pressure difference to move in the direction away from the infusion seat to open the liquid inlet channel, and the movable tongue extends into the avoiding groove to enable the liquid inlet channel to be communicated with the infusion channel; when the pressure in the liquid inlet channel is not more than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, the movable tongue resets to close the liquid inlet channel, so that the liquid inlet channel is disconnected with the infusion channel.
According to some embodiments of the invention, the inner diameter of the nozzle is not more than 5 mm.
According to some embodiments of the invention, the pump body comprises: the liquid pump shell is provided with a pump liquid cavity communicated with the infusion channel; the motor is arranged in the pump liquid cavity and is provided with an output shaft; the transmission mechanism is arranged in the pump liquid cavity and is in transmission connection with the output shaft; the connecting rod is arranged in the pump liquid cavity, one end of the connecting rod is in transmission connection with the transmission mechanism, and the motor drives the connecting rod to reciprocate through the transmission mechanism; the piston is arranged in the pump liquid cavity and is connected with the other end of the connecting rod, the piston is hermetically connected with the inner wall of the pump liquid cavity, and the connecting rod drives the piston to reciprocate; when the piston moves towards the liquid cavity of the pump, negative pressure is formed in the liquid conveying channel, liquid in the liquid storage tank is pumped into the liquid conveying channel, and the liquid level in the nozzle is kept unchanged under the action of pressure difference; when the piston moves towards the outside of the pump liquid cavity, the liquid in the liquid conveying channel is pushed into the nozzle.
According to some embodiments of the invention, the fluid pump housing comprises: a main housing forming the pump fluid chamber; piston housing, piston housing locates the pump liquid chamber and install in the main casing body, piston movably install in the piston housing, the piston with be equipped with piston seal between piston housing's the inner wall, the outer peripheral face of piston is equipped with the piston seal ring groove of extending along its circumference, perhaps piston housing's inner wall is equipped with the piston seal groove of extending along its circumference, piston seal is located in the piston seal ring groove.
According to some embodiments of the utility model, the piston sealing member is the Y shape sealing member, the back of Y shape sealing member the terminal surface of connecting rod has the opening, the piston to when moving in the pump liquid intracavity, the opening reduces gradually, the piston to when moving outside the pump liquid intracavity, the opening grow gradually.
According to some embodiments of the present invention, the piston ring groove is an edge a plurality of axial intervals of the piston are provided, and the piston sealing member is a plurality of one-to-one correspondence to the piston ring groove.
According to some embodiments of the invention, the main body comprises: the pump body is arranged in the host shell; the liquid way spare, the liquid way spare is located in the host computer casing, the infusion passageway go into the liquid mouth with the liquid outlet is located the liquid way spare, the liquid way spare still include with the pump liquid mouth of infusion passageway intercommunication, the piston housing inserts pump liquid mouth, the inner wall of pump liquid mouth is equipped with the location arch, the outer peripheral face of piston housing be equipped with the protruding complex in location the positioning ring groove.
According to some embodiments of the utility model, pump liquid mouth with the liquid outlet branch is located the both ends of liquid way spare, go into the liquid mouth and locate the liquid way spare global.
According to some embodiments of the present invention, a stopping portion for being mounted on the liquid outlet check valve is provided in the liquid passage member, and the cross-sectional area of the liquid feeding channel is gradually reduced from the liquid pumping port to the stopping portion; wherein the liquid inlet is communicated with the infusion channel between the liquid pumping port and the stopping portion.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a tooth rinsing device according to an embodiment of the present invention.
Fig. 2 is an exploded view of a dental irrigator according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a dental irrigator according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view from another perspective of a dental irrigator according to an embodiment of the present invention.
Fig. 5 is a partially enlarged view of the area a in fig. 4.
Fig. 6 is a partially enlarged view of the region B in fig. 4.
Fig. 7 is a schematic structural view of a liquid outlet one-way valve of the tooth flushing device according to the embodiment of the present invention.
Fig. 8 is a schematic structural view of another view angle of the liquid outlet check valve of the tooth flushing device according to the embodiment of the present invention.
Fig. 9 is a schematic structural view of a liquid channel member of the tooth flushing device according to the embodiment of the present invention.
Fig. 10 is a schematic structural view of another view angle of the liquid channel member of the tooth flusher according to the embodiment of the present invention.
Fig. 11 is a schematic structural view of a fluid passage member of the tooth irrigator according to an embodiment of the present invention from another view angle.
Fig. 12 is a schematic structural view of a liquid inlet check valve of the tooth flushing device according to the embodiment of the present invention.
Fig. 13 is a schematic structural view of an infusion seat of the tooth flusher according to the embodiment of the present invention.
Fig. 14 is a schematic structural diagram of a piston sealing member of the tooth flushing device according to the embodiment of the invention.
Reference numerals are as follows:
a tooth flusher 1,
The main body 100, the infusion channel 101, the liquid inlet 102, the liquid outlet 103, the main body case 110, the first liquid passage member 120, the stop ring edge 121, the second liquid passage member 130, the stop portion 131, the liquid passage sealing ring 132, the liquid passage member 140, the pump liquid inlet 141, the positioning protrusion 142, the liquid inlet boss 143, the liquid outlet boss, the liquid inlet hole 102, the liquid outlet hole 103, the liquid inlet hole 120, the liquid outlet hole, the liquid inlet groove, the liquid outlet boss, the liquid outlet hole, and the like,
A nozzle 200, a liquid outlet sealing ring 210,
A liquid storage tank 300,
The liquid outlet check valve 400, the base 410, the boss section 420, the inclined plane section 430, the first side wall 431, the second side wall 432, the straight line section 440, the third side wall 441, the fourth side wall 442,
A liquid inlet one-way valve 600, a supporting seat 601, an avoiding groove 602, an annular seat 610, a movable tongue 620,
The infusion seat 700, the liquid inlet channel 710, the hose connecting plug 720 and the liquid inlet sealing ring 730.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more.
The following describes the dental irrigator 1 according to an embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 14, the dental irrigator 1 comprises a main body 100, a nozzle 200, a reservoir 300, a discharge check valve 400 and a pump body 500.
The main body 100 is provided with a liquid conveying channel 101, a liquid inlet 102 and a liquid outlet 103 which are communicated with the liquid conveying channel 101, the nozzle 200 is connected with the main body 100 and communicated with the liquid outlet 103, the liquid storage tank 300 is connected with the main body 100 and communicated with the liquid inlet 102, the liquid outlet one-way valve 400 is arranged on the liquid conveying channel 101, the liquid outlet one-way valve 400 allows liquid in the liquid conveying channel 101 to enter the nozzle 200 and prevents liquid in the nozzle 200 from entering the liquid conveying channel 101, and the pump body 500 is used for driving the liquid to flow to the liquid outlet 103 from the liquid inlet 102.
The pump body 500 has an open state and a stop state, when the pump body 500 is in the open state, the pump body 500 drives the liquid in the infusion channel 101 to flow and opens the liquid outlet one-way valve 400 under the impact of the liquid, so that the liquid in the infusion channel 101 flows to the nozzle 200, when the pump body 500 is in the stop state, the liquid outlet one-way valve 400 closes the infusion channel 101, the liquid in the infusion channel 101 stops flowing to the nozzle 200, and the liquid level in the nozzle 200 is kept unchanged under the action of pressure difference.
For example, the liquid in the tank 300 may be water or a mouthwash or the like suitable for rinsing teeth. Also, the liquid outlet check valve 400 may be a soft rubber member, such as a silicone member or a rubber member.
According to the utility model discloses towards tooth ware 1, through be equipped with main engine body 100 infusion passageway 101 and with income liquid mouth 102 and liquid outlet 103 of infusion passageway 101 intercommunication, nozzle 200 is connected with main engine body 100 and communicates with liquid outlet 103, liquid reserve tank 300 is connected with main engine body 100 and communicates with income liquid mouth 102, pump body 500 is used for driving liquid from going into liquid mouth 102 flow direction liquid outlet 103. Thus, the pump body 500 can continuously pump the liquid in the liquid storage tank 300 into the liquid conveying channel 101 through the liquid inlet 102, and then extrude the liquid in the liquid conveying channel 101 into the nozzle 200 through the liquid outlet 103, so that the liquid in the nozzle 200 can be sprayed onto teeth to wash the teeth, and the teeth can be cleaned.
In addition, the liquid outlet one-way valve 400 is arranged in the liquid conveying channel 101, the liquid outlet one-way valve 400 allows liquid in the liquid conveying channel 101 to enter the nozzle 200 and prevents liquid in the nozzle 200 from entering the liquid conveying channel 101, the pump body 500 has an opening state and a stopping state, when the pump body 500 is in the opening state, the pump body 500 drives the liquid in the liquid conveying channel 101 to flow and opens the liquid outlet one-way valve 400 under the impact of the liquid, so that the liquid in the liquid conveying channel 101 flows to the nozzle 200, when the pump body 500 is in the stopping state, the liquid outlet one-way valve 400 closes the liquid conveying channel 101, the liquid in the liquid conveying channel 101 stops flowing to the nozzle 200, and the liquid level in the nozzle 200 is kept unchanged under the action of pressure difference.
Thus, if a user can control the pump body 500 to be switched from the open state to the stop state in the using process, the user can adjust the posture of holding the tooth flushing device 1, and under the matching action of the liquid outlet one-way valve 400 and the air pressure difference, the liquid level in the nozzle 200 can be kept at a certain position in the nozzle 200, at the moment, liquid still exists in the nozzle 200, when the user switches the pump body 500 to the open state again, the liquid can be rapidly sprayed out of the nozzle 200, the liquid does not need to wait for the infusion channel 101 to convey the liquid into the nozzle 200, the restarting reaction is quicker, the waiting time of the user is effectively saved, and the using feeling of the user is optimized.
Thus, the nozzle 200 of the tooth flusher 1 according to the embodiment of the present invention can store liquid, thereby achieving the purpose of reducing the starting time.
According to some embodiments of the present invention, as shown in fig. 2-4, the nozzle 200 is inserted into the infusion channel 101 and a liquid outlet sealing ring 210 is provided between the nozzle and the inner wall of the infusion channel 101. The liquid outlet sealing ring 210 may be a soft rubber member, such as a silicone rubber member or a rubber member.
Thus, the liquid outlet sealing ring 210 can seal the gap between the nozzle 200 and the inner wall of the infusion channel 101, the nozzle 200 is in interference fit with the inner wall of the infusion channel 101 through the liquid outlet sealing ring 210, on one hand, liquid in the infusion channel 101 is prevented from flowing out from the gap between the nozzle 200 and the inner wall of the infusion channel 101, on the other hand, the infusion channel 101 is prevented from being communicated with the space outside the tooth flushing device 1 through the gap between the nozzle 200 and the inner wall of the infusion channel 101, a negative pressure state is kept between the nozzle 200 and the liquid outlet one-way valve 400, and further, when the pump body 500 is in a stop state, the liquid in the nozzle 200 can be kept at the current liquid level.
In some embodiments of the present invention, as shown in fig. 4 and 5, the main body 100 includes a main body case 110, a first fluid passage member 120, and a second fluid passage member 130.
The first liquid channel member 120 is installed in the main machine housing 110 and is provided with a liquid outlet 103, one end of the first liquid channel member 120 is connected with the nozzle 200, a part of the liquid conveying channel 101 is arranged in the first liquid channel member 120, the second liquid channel member 130 is installed in the main machine housing 110, the second liquid channel member 130 is connected with the other end of the first liquid channel member 120 and is provided with a liquid inlet 102, the other part of the liquid conveying channel 101 is arranged in the second liquid channel member 130, and the first liquid channel member 120 and the second liquid channel member 130 clamp the liquid outlet one-way valve 400.
Therefore, the main machine body 100 is arranged in a split mode, the infusion channel 101 is convenient to process, the infusion channel 101 is divided into two sections, the liquid outlet one-way valve 400 is favorably arranged in the infusion channel 101, the liquid outlet one-way valve 400 is clamped by the first liquid channel piece 120 and the second liquid channel piece 130, the relative position of the liquid outlet one-way valve 400 and the main machine body 100 is fixed, other fixing structures are not needed, the number of parts is reduced, and disassembly and assembly are convenient.
Further, as shown in fig. 4 and 9, a stopper 131 is provided in the second liquid passage member 130, the first liquid passage member 120 is inserted into the second liquid passage member 130 and clamps the liquid outlet check valve 400 with the stopper 131, and a liquid passage seal ring 132 is provided between an outer circumferential surface of the first liquid passage member 120 and an inner circumferential surface of the second liquid passage member 130. The liquid passage sealing ring 132 may be a soft rubber member, such as a silicone rubber member or a rubber member.
It should be noted that the stopping portion 131 does not completely block the infusion channel 101, and the stopping portion 131 may be annular, that is, a through hole for ensuring the normal flow of the liquid in the infusion channel 101 is formed in the center of the stopping portion 131. Thus, on one hand, the stopping portion 131 is used for clamping the liquid outlet check valve 400 with the first liquid channel member 120 to realize the positioning of the liquid outlet check valve 400 relative to the main body 100, and on the other hand, the stopping portion 131 is used for stopping the first liquid channel member 120 in the axial direction of the second liquid channel member 130 to prevent the first liquid channel member 120 from excessively extending into the second liquid channel member 130 to realize the relative positioning of the first liquid channel member 120 and the second liquid channel member 130.
Moreover, the first fluid passage member 120 can be in interference fit with the second fluid passage member 130 through the fluid passage sealing ring 132, and the fluid passage sealing ring 132 can seal a gap between the first fluid passage member 120 and the second fluid passage member 130, so that on one hand, the liquid in the infusion channel 101 is prevented from flowing out from the gap between the first fluid passage member 120 and the second fluid passage member 130, on the other hand, the infusion channel 101 is prevented from being communicated with the space outside the tooth irrigator 1 through the gap between the first fluid passage member 120 and the second fluid passage member 130, so that a negative pressure state is maintained between the nozzle 200 and the liquid outlet one-way valve 400, and further, when the pump body 500 is in a stop state, the liquid in the nozzle 200 can be maintained at a current liquid level.
Alternatively, as shown in fig. 4, the outer circumferential surface of the first fluid passage member 120 is provided with a stop ring edge 121, and the stop ring edge 121 stops at one end of the second fluid passage member 130 facing the nozzle 200. Wherein, the stop ring edge 121 can extend along the axial direction of the first liquid channel piece 120, the stop ring edge 121 can limit the first liquid channel piece 120 in the axial direction of the second liquid channel piece 130, and the first liquid channel piece 120 is prevented from excessively extending into the second liquid channel piece 130, so that the clamping force of the first liquid channel piece 120 and the second liquid channel piece 130 to the liquid outlet one-way valve 400 is moderate, the damage probability of the liquid outlet one-way valve 400 is reduced, and the service life of the liquid outlet one-way valve 400 is prolonged.
Further, as shown in fig. 3, 7 and 8, the liquid outlet check valve 400 includes a base 410, a boss section 420, a slope section 430 and a straight section 440. In this case, the outlet check valve 400 may be a duckbill valve.
The base 410 is clamped by the stopper 131 and the first liquid channel member 120 in the thickness direction thereof, the boss section 420 is connected to an end of the base 410 facing away from the second liquid channel member 130, the boss section 420 extends into the first liquid channel member 120, the ramp section 430 is connected to an end of the boss section 420 facing away from the second liquid channel member 130, the ramp section 430 is provided with a first side wall 431 and a second side wall 432 opposite to each other, the distance between the outer surface of the first side wall 431 and the outer surface of the second side wall 432 is gradually reduced, the distance between the inner surface of the first side wall 431 and the inner surface of the second side wall 432 is gradually reduced, the straight line section 440 is connected to an end of the ramp section 430 facing away from the second liquid channel member 130, the straight line section 440 is provided with a third side wall 441 and a fourth side wall 442 opposite to each other, the third side wall 441 is connected to the first side wall 431, and the fourth side wall 442 is connected to the second side wall 432.
For example, the stopping portion 131, the base 410, the boss section 420 and the slope section 430 are provided with communicating through holes, the cross-sectional area of the through hole of the stopping portion 131, the cross-sectional area of the through hole of the base 410, the cross-sectional area of the through hole of the boss section 420 and the cross-sectional area of the through hole of the slope section 430 near one end of the boss section 420 are the same, and the cross-sectional area of the through hole of the slope section 430 is gradually reduced towards the direction far away from the boss section 420.
The base 410 and the boss section 420 can be both in a truncated cone shape, the outer diameter of the base 410 is larger than that of the boss section 420, and the base 410 is suitable to be clamped by the stopping part 131 and the first liquid channel member 120 due to the largest cross-sectional area of the base 410, and the base 410 can seal the gap between the stopping part 131 and the first liquid channel member 120, so that the sealing performance of the infusion channel 101 on gas and liquid is further improved. Moreover, the outer circumferential surface of the boss section 420 may be attached to the inner wall surface of the first fluid passage member 120, and the outer circumferential surface of the base 410 may be attached to the inner wall surface of the second fluid passage member 130, so that the boss section 420 and the inner wall surface of the first fluid passage member 120 form a first layer of seal, the base 410 and the end surface of the first fluid passage member 120 form a second layer of seal, and the arrangement of the two layers of seals can effectively improve the sealing performance of the end of the first fluid passage member 120 facing the second fluid passage member 130, thereby preventing water leakage and air leakage from the end of the first fluid passage member 120 facing the second fluid passage member 130, and more reliably maintaining the fluid in the nozzle 200 at the current fluid level when the pump body 500 is in a stopped state.
Wherein, when the pump body 500 is in the open state, the pump body 500 drives the liquid in the infusion channel 101 to flow from the inner side of the base 410, the inner side of the boss section 420 and the inner side of the slope section 430 to the inner side of the straight section 440, and the liquid pushes the third sidewall 441 and the fourth sidewall 442 away from each other to continue to flow to the nozzle 200.
Specifically, when the pump body 500 is in the open state, the liquid in the second liquid passage member 130 can enter the through hole of the stopper portion 131, the through hole of the base 410, the through hole of the boss section 420, and the through hole of the inclined plane section 430 under the driving of the pump body 500, the outer diameter of the inclined plane section 430 is smaller than the outer diameter of the boss section 420, a gap exists between the outer peripheral surface of the inclined plane section 430 and the inner wall surface of the first liquid passage member 120, the inclined plane section 430 can deform outward along the radial direction of the first liquid passage member 120 under the pushing of the liquid inside the inclined plane section 430, that is, the gap between the outer circumferential surface of the slope section 430 and the inner wall surface of the first channel member 120 becomes smaller, therefore, the third sidewall 441 and the fourth sidewall 442 are separated from each other by the first sidewall 431 and the second sidewall 432, and the liquid in the slope section 430 can flow into the liquid feeding channel 101 of the first liquid passage member 120 through the gap between the third sidewall 441 and the fourth sidewall 442 and then enter the nozzle 200.
When the pump body 500 is in a stop state, the liquid between the liquid outlet check valve 400 and the nozzle 200 is pressed on the outer side of the third side wall 441, the outer side of the fourth side wall 442, the outer side of the first side wall 431 and the outer side of the second side wall 432, the third side wall 441 and the fourth side wall 442 are pushed to be close to each other and the first side wall 431 and the second side wall 432 are close to each other, and the straight line segment 440 closes the infusion channel 101.
Specifically, the outer diameter of the slope section 430 is smaller than the outer diameter of the boss section 420, and a gap exists between the outer peripheral surface of the slope section 430 and the inner wall surface of the first liquid channel 120, so that when the pump body 500 is in a stopped state, the liquid in the first liquid channel 120 applies an acting force to the outer peripheral surface of the slope section 430, so that the third side wall 441 and the fourth side wall 442 are tightly attached under the driving of the first side wall 431 and the second side wall 432, and the liquid in the first liquid channel 120 applies an acting force to the outer peripheral surface of the straight line section 440, so that the third side wall 441 and the fourth side wall 442 can be further tightly attached, and the liquid in the first liquid channel 120 is prevented from flowing into the liquid outlet check valve 400 from the gap between the third side wall 441 and the fourth side wall 442.
According to some embodiments of the present invention, as shown in fig. 3, the tooth-rinsing device 1 further comprises a liquid inlet check valve 600, the liquid inlet check valve 600 is disposed on one side of the liquid conveying channel 101 close to the liquid inlet 102, and the liquid inlet check valve 600 allows the liquid in the liquid storage box 300 to enter the liquid conveying channel 101 and prevents the liquid in the liquid conveying channel 101 from entering the liquid storage box 300. The liquid inlet check valve 600 may be elastic, such as a metal member with good elastic deformation performance or a plastic member with good elastic deformation performance.
Specifically, when the pump body 500 is in an open state (i.e., during operation), the liquid outlet check valve 400 and the liquid inlet check valve 600 are sequentially opened and closed, for example, in a first step, the liquid inlet check valve 600 opens the infusion path 101 to allow the liquid in the liquid storage tank 300 to enter the infusion path 101, the liquid outlet check valve 400 closes the infusion path 101, and the liquid in the liquid storage tank 300 enters the infusion path 101 and is stored in the infusion path 101; secondly, the liquid inlet one-way valve 600 closes the liquid conveying channel 101 to prevent liquid in the liquid conveying channel 101 from entering the liquid storage tank 300, the liquid outlet one-way valve 400 opens the liquid conveying channel 101, the liquid in the liquid conveying channel 101 enters the nozzle 200 and is sprayed out of the nozzle 200 to clean teeth, and the liquid in the liquid conveying channel 101 is gradually reduced; and thirdly, continuously circulating the two processes until the pump body 500 is switched to a stop state.
In addition, when the pump body 500 is in a stop state, the liquid inlet check valve 600 closes the infusion channel 101, so that the air pressure in the infusion channel 101 can be kept constant, the liquid outlet check valve 400 can be kept closed all the time in a negative pressure state, and the liquid level in the nozzle 200 can be kept constant.
Through setting up feed liquor check valve 600, not only can avoid the liquid reflux in the infusion passageway 101 in the liquid reserve tank 300, guarantee towards the work efficiency of tooth ware 1, and the energy consumption is low, but also can allow the liquid reserve tank 300 to the supplementary liquid that infusion passageway 101 lasts to guarantee that nozzle 200 has sufficient liquid supply, in order to realize the long-time cleanness to the inside (mainly being tooth and tooth clearance) of oral cavity, use travelling comfort and clean efficiency are all high.
Further, as shown in fig. 3 and 13, the tooth flusher 1 further comprises an infusion seat 700 and an infusion hose. For example, the infusion hose may be made of a flexible plastic material.
One part of the infusion seat 700 is inserted into the infusion channel 101 from the liquid inlet 102, the other part of the infusion seat 700 is positioned outside the infusion channel 101, the infusion seat 700 is provided with a liquid inlet channel 710 communicated with the infusion channel 101, one end of an infusion hose extends into the liquid storage tank 300, the other end of the infusion hose is connected with one part of the infusion seat 700, the infusion hose is communicated with the liquid inlet channel 710, the liquid inlet one-way valve 600 is stopped against one side of the infusion seat 700, which is back to the infusion hose, and at least one part of the liquid inlet one-way valve covers the liquid inlet channel 710.
When the pressure in the liquid inlet channel 710 is greater than the pressure in the infusion channel 101 between the liquid inlet check valve 600 and the liquid outlet check valve 400, at least one part of the liquid inlet check valve 600 is pushed by the pressure difference to move in the direction away from the infusion seat 700 to open the liquid inlet channel 710, so that the liquid inlet channel 710 is communicated with the infusion channel 101; when the pressure in the liquid inlet channel 710 is not more than the pressure in the liquid conveying channel 101 between the liquid inlet check valve 600 and the liquid outlet check valve 400, at least one part of the liquid inlet check valve 600 is reset to close the liquid inlet channel 710, so that the liquid inlet channel 710 is disconnected from the liquid conveying channel 101.
For example, the infusion hose is easily flexibly deformed and is conveniently disposed in the main body 100 to communicate the fluid storage tank 300 with the fluid passage. Because the infusion hose is too easy to deform, if the infusion hose is inserted into the infusion channel 101, the infusion hose and the inner wall of the infusion channel 101 are not fixed conveniently, and the infusion hose is bent possibly to cause unsmooth liquid circulation in the infusion hose, so the infusion seat 700 is arranged, the volume of the infusion seat 700 can be smaller, the liquid inlet channel 710 of the infusion seat 700 can be provided with structures such as a bend and the like, the infusion seat 700 can be conveniently installed on the inner wall of the infusion channel 101, and liquid cannot be prevented from flowing into the infusion channel 101 from the liquid storage tank 300, when the tooth flusher 1 is assembled, the infusion seat 700 and the infusion hose can be fixed firstly, and then the infusion seat 700 is fixed into the infusion channel 101.
The liquid inlet channel 710 of the infusion seat 700 is closed and opened by the liquid inlet one-way valve 600, when the liquid inlet channel 710 is opened by the liquid inlet one-way valve 600, the liquid inlet channel 710 is communicated with the infusion channel 101, and the liquid in the liquid storage tank 300 can flow to the infusion channel 101 through the liquid inlet channel 710; when the liquid inlet one-way valve 600 closes the liquid inlet channel 710, the liquid inlet channel 710 is disconnected from the infusion channel 101, and the infusion channel 101 cannot flow to the liquid storage tank 300 through the liquid inlet channel 710.
In addition, the other part of the infusion seat 700 is provided with a hose connection plug 720, the outer circumferential surface of the hose connection plug 720 is configured with a plurality of clamping ribs arranged at intervals along the axial direction thereof, the infusion hose is sleeved on the hose connection plug 720, the clamping ribs are used for increasing friction force applied to the infusion hose and preventing the infusion hose from being separated from the hose connection plug 720, the hose connection plug 720 can extend towards the direction of the liquid storage tank 300, and the liquid inlet channel 710 penetrates through the end surface of the hose connection plug 720 and is communicated with the infusion hose.
Alternatively, as shown in fig. 3, a liquid inlet seal 730 is provided between the outer peripheral surface of a part of the infusion seat 700 and the inner wall of the infusion path 101. The liquid inlet seal ring 730 may be a soft rubber member, such as a silicone rubber member and a rubber member. Thus, the infusion seat 700 is in interference fit with the inner wall of the infusion channel 101 through the liquid inlet sealing ring 730, on one hand, the infusion seat 700 can prevent the liquid in the infusion channel 101 from flowing out from the gap between the outer peripheral surface of the infusion seat 700 and the inner wall of the infusion channel 101, on the other hand, the infusion channel 101 is prevented from being communicated with the space in the shell through the gap between the outer peripheral surface of the infusion seat 700 and the inner wall of the infusion channel 101, and therefore when the pump body 500 is in a stop state, the air pressure in the infusion channel 101 is stable, and the liquid level in the nozzle 200 is kept unchanged under the action of pressure difference.
In some embodiments of the present invention, as shown in fig. 3 and 10, a supporting seat 601 is disposed in the infusion channel 101, the liquid inlet check valve 600 is clamped between the supporting seat 601 and the infusion seat 700, and an avoiding groove 602 is disposed on one side of the supporting seat 601 facing the liquid inlet 102. The inlet check valve 600 includes an annular seat 610 and a movable tongue 620. The annular seat 610 is clamped between the support seat 601 and the infusion seat 700 and surrounds the avoiding groove 602, one end of the movable tongue 620 is connected with the inner circumferential surface of the annular seat 610, the other end of the movable tongue 620 moves relative to the annular seat 610, and the movable tongue 620 covers the liquid inlet channel 710. At this time, the liquid inlet check valve 600 is a flapper valve.
It should be noted that the groove wall of the avoiding groove 602 does not completely block the infusion channel 101, and the bottom of the avoiding groove 602 is provided with a through hole so that the liquid in the infusion channel 101 can flow. The escape groove 602 is recessed from the side of the support base 601 facing the liquid inlet 102 in a direction away from the liquid inlet 102. Through setting up supporting seat 601, on the one hand can with the common centre gripping feed liquor check valve 600 of infusion seat 700 to the relative position of fixed feed liquor check valve 600 and host computer body 100 need not to set up other fixed knot and constructs, and on the other hand can restrict the degree of depth that infusion seat 700 inserted infusion passageway 101, avoids infusion seat 700 excessively to insert infusion passageway 101, can confirm the relative position between the inner wall of infusion seat 700 and infusion passageway 101, makes things convenient for the dismouting.
When the pressure in the liquid inlet channel 710 is greater than the pressure in the infusion channel 101 between the liquid inlet one-way valve 600 and the liquid outlet one-way valve 400, the movable tongue 620 is pushed by the pressure difference to move in the direction away from the infusion seat 700 to open the liquid inlet channel 710, and the movable tongue 620 extends into the avoiding groove 602 to communicate the liquid inlet channel 710 with the infusion channel 101; when the pressure in the liquid inlet channel 710 is not more than the pressure in the infusion channel 101 between the liquid inlet check valve 600 and the liquid outlet check valve 400, the movable tongue 620 is reset to close the liquid inlet channel 710, so that the liquid inlet channel 710 is disconnected from the infusion channel 101.
Thus, when the pressure in the liquid inlet channel 710 is greater than the pressure in the infusion channel 101 between the liquid inlet check valve 600 and the liquid outlet check valve 400, the infusion channel 101 between the liquid inlet check valve 600 and the liquid outlet check valve 400 is in a negative pressure state, the movable tongue 620 is subjected to the action force of pressure difference, due to the arrangement of the avoiding groove 602, a deformation space is provided for the movable tongue 620, at the moment, the movable tongue 620 can be far away from the infusion seat 700, and one end of the liquid inlet channel 710, which faces the liquid inlet check valve 600, is opened and communicated with the infusion channel 101.
As shown in fig. 13, a surface of the infusion seat 700 facing the support base 601 may be a flat surface, and when the pressure in the infusion channel 101 between the inlet check valve 600 and the outlet check valve 400 is greater than the pressure in the inlet channel 710 or equal to the pressure in the inlet channel 710, the movable tongue 620 is returned to the surface of the infusion seat 700 facing the support base 601 by its own elastic force, so as to close an end of the inlet channel 710 facing the inlet check valve 600, block the communication between the inlet channel 710 and the infusion channel 101, and prevent the liquid in the infusion channel 101 from reversely flowing into the reservoir 300 through the inlet channel 710.
In addition, the movable tongue 620 does not generate friction in the moving process, the friction loss is small, and the service life is long.
Specifically, the inner diameter of the nozzle 200 is not more than 5mm, the area of the liquid surface in the nozzle 200 is small, and the liquid at the liquid surface can be adsorbed on the inner wall of the nozzle 200 by its own tension, so that the liquid surface in the nozzle 200 forms a seal against the space in the nozzle 200, and the liquid in the nozzle 200 can be stably maintained in the nozzle 200 under the atmospheric pressure outside the dental irrigator 1, and at this time, the liquid in the nozzle 200 does not flow out even if the side of the nozzle 200 facing away from the main body 100 is directed downward.
According to some embodiments of the present invention, as shown in fig. 4, 6 and 11, the pump body 500 includes a fluid pump housing 510, a motor 520, a transmission 530, a connecting rod 540, and a piston 550.
The liquid pump shell 510 is provided with a pump liquid cavity 501 communicated with the liquid conveying channel 101, the motor 520 is arranged in the pump liquid cavity 501 and is provided with an output shaft 521, the transmission mechanism 530 is arranged in the pump liquid cavity 501 and is in transmission connection with the output shaft 521, the connecting rod 540 is arranged in the pump liquid cavity 501, one end of the connecting rod 540 is in transmission connection with the transmission mechanism 530, the motor 520 drives the connecting rod 540 to reciprocate through the transmission mechanism 530, the piston 550 is arranged in the pump liquid cavity 501 and is connected with the other end of the connecting rod 540, the piston 550 is in sealing connection with the inner wall of the pump liquid cavity 501, and the connecting rod 540 drives the piston 550 to reciprocate.
When the piston 550 moves towards the direction of increasing the volume of the pump liquid cavity 501, negative pressure is formed in the liquid conveying channel 101, liquid in the liquid storage tank 300 is pumped into the liquid conveying channel 101, and the liquid level in the nozzle 200 is kept unchanged under the action of pressure difference; when the piston 550 moves in a direction to decrease the volume of the pump chamber 501, the liquid in the liquid feeding channel 101 is pushed into the nozzle 200.
For example, the transmission mechanism 530 may include a driving gear 531 and a driven gear 532, the driving gear 531 is sleeved on the output shaft 521, the driven gear 532 is rotatably installed on the fluid pump housing 510, and the driven gear 532 drives the piston 550 to perform a linear reciprocating motion when rotating. When the piston 550 moves into the pump liquid cavity 501, the liquid outlet one-way valve 400 is closed to disconnect the nozzle 200 from the infusion channel 101, the liquid in the infusion channel 101 stops flowing to the nozzle 200, the liquid inlet one-way valve 600 is opened, and the liquid storage tank 300 conveys the liquid into the infusion channel 101 to connect the liquid storage tank 300 with the infusion channel 101; when the piston 550 moves out of the pump liquid cavity 501, the liquid inlet check valve 600 is closed to disconnect the liquid storage tank 300 from the liquid conveying channel 101, the liquid storage tank 300 stops conveying liquid into the liquid conveying channel 101, the liquid outlet check valve 400 is opened to connect the nozzle 200 with the liquid conveying channel 101, and the liquid in the liquid conveying channel 101 flows to the nozzle 200.
In this way, the pump body 500 can suck liquid from the reservoir 300 and drive the liquid in the liquid feeding path 101 to the nozzle 200, thereby cleaning the teeth by the tooth flusher 1.
Further, as shown in fig. 3 and 6, the liquid pump housing 510 includes a main housing 511 and a piston housing 512.
The main housing 511 forms a pump fluid chamber 501, the piston housing 512 is disposed in the pump fluid chamber 501 and mounted on the main housing 511, the piston 550 is movably mounted in the piston housing 512, a piston seal 560 is disposed between the piston 550 and an inner wall of the piston housing 512, a piston seal ring groove 561 extending along a circumferential direction of the piston 550 is disposed on an outer circumferential surface of the piston 550, or a piston 550 seal groove extending along a circumferential direction of the piston is disposed on an inner wall of the piston housing 512, and the piston seal 560 is disposed in the piston seal ring groove 561.
For example, the piston housing 512 may be inserted into the infusion channel 101, the piston seal 560 may be a soft rubber member, such as a rubber member or a silicone member, and the piston 550 and the piston housing 512 are in interference fit via the piston seal 560. By providing the piston housing 512 in interference fit with the piston 550, the piston 550 and the piston housing 512 together block the communication between the pump fluid chamber 501 and the infusion channel 101, so that when the piston 550 moves along the piston housing 512 into the pump fluid chamber 501, the internal space of the infusion channel 101 increases, but air cannot enter the internal space of the infusion channel 101, so that the infusion channel 101 becomes a negative pressure state, at this time, the liquid in the liquid storage tank 300 is drawn into the infusion channel 101 under the action of pressure difference, and when the piston 550 moves along the piston housing 512 out of the pump fluid chamber 501, the internal space of the infusion channel 101 decreases, the liquid in the infusion channel 101 is squeezed to the liquid inlet 102 and the liquid outlet 103, at this time, the liquid inlet 102 is blocked, and therefore, the liquid in the infusion channel 101 can only flow from the liquid outlet 103 into the nozzle 200.
And, the piston sealing ring groove 561 can play a role of pre-positioning the piston sealing member 560, and position one of the piston 550 and the piston shell 512 and the piston sealing member 560, so as to facilitate the disassembly and assembly of the tooth flusher 1.
In other embodiments of the present invention, the piston sealing element 560 may not be disposed between the piston 550 and the inner wall of the piston housing 512, the piston 550 is a soft rubber, such as a rubber or a silicone, and the piston 550 and the piston housing 512 are in interference fit to achieve sealing between the piston 550 and the piston housing 512, so as to ensure that when the piston 550 moves into the pump liquid cavity 501, a negative pressure state can be formed in the infusion channel 101, and when the piston 550 moves out of the pump liquid cavity 501, the liquid can be pushed to flow to the nozzle 200 through the liquid outlet check valve 400.
For example, as shown in fig. 14, piston seal 560 is a Y-shaped seal, and an end surface of the Y-shaped seal facing away from connecting rod 540 has opening 562, and opening 562 gradually decreases as piston 550 moves into pump chamber 501, and opening 562 gradually increases as piston 550 moves out of pump chamber 501. Thus, when the piston 550 moves into the pump fluid chamber 501, the friction force between the piston seal 560 and the inner wall of the piston housing 512 is reduced, so that the output torque of the motor 520 can be smaller, and the friction damage of the piston seal 560 is small, which is beneficial to improving the service life of the piston seal 560; when the piston 550 moves towards the outside of the pump liquid cavity 501, the size of the piston seal 560 between the piston 550 and the piston shell 512 is increased, so that the effective sealing of the piston seal 560 on the gap between the piston 550 and the piston shell 512 is ensured, the sealing performance of the pump body 500 is improved, and the liquid in the liquid conveying channel 101 can be pushed into the nozzle 200.
As shown in fig. 6, a plurality of piston seal ring grooves 561 are provided at intervals in the axial direction of the piston 550, and a plurality of piston seals 560 are provided in one-to-one correspondence with the plurality of piston seal ring grooves 561. This increases the size of each piston seal 560 between piston 550 and piston housing 512 as piston 550 moves out of pump chamber 501, thereby further increasing the sealing effect of piston seal 560 against the gap between piston 550 and piston housing 512.
In some optional embodiments of the present invention, as shown in fig. 3 and 4, and fig. 9 to 11, the main body 100 includes a main body case 110 and a fluid passage member 140.
The pump body 500 is arranged in the main machine shell 110, the liquid channel piece 140 is arranged in the main machine shell 110, the liquid conveying channel 101, the liquid inlet 102 and the liquid outlet 103 are arranged in the liquid channel piece 140, the liquid channel piece 140 further comprises a liquid pumping port 141 communicated with the liquid conveying channel 101, the piston shell 512 is inserted into the liquid pumping port 141, a positioning bulge 142 is arranged on the inner wall of the liquid pumping port 141, and a positioning ring groove 513 matched with the positioning bulge 142 is arranged on the outer peripheral surface of the piston shell 512.
Thus, not only can the piston housing 512 be inserted into the infusion path 101 to control the change of the pressure in the infusion path 101 by moving the piston 550, but also when the liquid is supplied into the infusion path 101 from the reservoir 300, the piston housing 512 is not separated from the liquid channel member 140 by the impact of the liquid, and when the pressure in the infusion path 101 increases, the piston housing 512 is not pushed out of the infusion path 101 by the pressure. In addition, the cooperation of the positioning protrusion 142 and the positioning ring groove 513 can realize the sealing of the pump liquid port 141, and prevent the liquid in the infusion channel 101 from leaking into the pump liquid cavity 501 from the pump liquid port 141.
At this time, as shown in fig. 9 to 11, the pump liquid inlet 141 and the liquid outlet 103 are provided at both ends of the liquid path member 140, and the liquid inlet 102 is provided at the peripheral surface of the liquid path member 140. The peripheral surface of the liquid channel member 140 may be provided with a liquid inlet boss 143 for mounting the infusion seat 700 and the liquid inlet check valve 600, so that the pump liquid port 141, the liquid outlet 103 and the liquid inlet 102 do not interfere with each other, the space of the liquid channel member 140 is fully utilized, and the volume of the liquid channel member 140 is reduced.
As shown in fig. 11, a stopper 131 is provided in the liquid passage member 140 to be attached to the liquid outlet check valve 400, and the cross-sectional area of the liquid feeding path 101 is gradually reduced from the pump liquid inlet 141 to the stopper 131. Wherein, the liquid inlet 102 is communicated with the transfusion channel 101 between the pump liquid inlet 141 and the stopping part 131.
Thus, when the liquid in the liquid storage tank 300 enters the liquid inlet 102, the liquid is firstly stored in the liquid conveying channel 101 between the pump liquid inlet 141 and the stopping part 131, then the piston 550 moves towards the outside of the pump liquid cavity 501, and the stopping part 131 plays a role in guiding the liquid, so that the liquid enters the liquid outlet one-way valve 400, the stopping part 131 is prevented from blocking the flow of the liquid, and the flowing smoothness of the liquid is effectively improved.
Other constructions and operations of the dental irrigator 1 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (18)
1. A dental irrigator, comprising:
the main machine body is provided with a liquid conveying channel, a liquid inlet and a liquid outlet which are communicated with the liquid conveying channel;
the nozzle is connected with the main machine body and communicated with the liquid outlet;
the liquid storage tank is connected with the main machine body and communicated with the liquid inlet;
the liquid outlet one-way valve is arranged in the infusion channel and allows the liquid in the infusion channel to enter the nozzle and prevents the liquid in the nozzle from entering the infusion channel;
a pump body for driving liquid to flow from the liquid inlet to the liquid outlet;
the pump body is in an open state and a stop state, when the pump body is in the open state, the pump body drives the liquid in the infusion channel to flow and opens the liquid outlet one-way valve under the impact of the liquid, so that the liquid in the infusion channel flows to the nozzle, when the pump body is in the stop state, the liquid outlet one-way valve closes the infusion channel, the liquid in the infusion channel stops flowing to the nozzle, and the liquid level in the nozzle is kept unchanged under the action of pressure difference.
2. The tooth-rinsing device as claimed in claim 1, wherein said nozzle is inserted into said infusion channel and a liquid-discharging sealing ring is provided between said nozzle and the inner wall of said infusion channel.
3. The dental irrigator of claim 1, wherein said main body comprises:
a main machine shell,
the first liquid channel piece is arranged on the main machine shell and is provided with the liquid outlet, one end of the first liquid channel piece is connected with the nozzle, and one part of the liquid conveying channel is arranged on the first liquid channel piece;
the second liquid channel piece is installed on the host shell, the second liquid channel piece is connected with the other end of the first liquid channel piece and is provided with the liquid inlet, the other part of the infusion channel is arranged on the second liquid channel piece, and the first liquid channel piece and the second liquid channel piece clamp the liquid outlet one-way valve.
4. The device as claimed in claim 3, wherein a stop portion is provided in the second fluid passage member, the first fluid passage member is inserted into the second fluid passage member and clamps the outlet check valve with the stop portion, and a fluid passage seal ring is provided between an outer circumferential surface of the first fluid passage member and an inner circumferential surface of the second fluid passage member.
5. The dental irrigator of claim 3 wherein the outer peripheral surface of the first fluid passage member is provided with a stop rim which stops at an end of the second fluid passage member facing the nozzle.
6. The tooth irrigator according to claim 4, wherein said liquid outlet one-way valve comprises:
a base clamped by the stopper portion and the first liquid passage member in a thickness direction thereof;
the boss section is connected with one end of the base, which is back to the second liquid channel piece, and the boss section extends into the first liquid channel piece;
the inclined surface section is connected with one end, back to the second liquid channel piece, of the boss section, and is provided with a first side wall and a second side wall which are opposite to each other, the distance between the outer surface of the first side wall and the outer surface of the second side wall is gradually reduced, and the distance between the inner surface of the first side wall and the inner surface of the second side wall is gradually reduced;
the straight line section is connected with one end, back to the second liquid channel part, of the inclined plane section, and is provided with a third side wall and a fourth side wall which are opposite to each other, the third side wall is connected with the first side wall, and the fourth side wall is connected with the second side wall;
when the pump body is in the open state, the pump body drives the liquid in the infusion channel to flow from the inner side of the base, the inner side of the boss section and the inner side of the inclined surface section to the inner side of the straight section, and the liquid pushes the third side wall and the fourth side wall to move away from each other to continue flowing to the nozzle;
when the pump body is in the stop state, liquid between the liquid outlet one-way valve and the nozzle is pressed on the outer side of the third side wall, the outer side of the fourth side wall, the outer side of the first side wall and the outer side of the second side wall, the third side wall and the fourth side wall are pushed to be close to and attached to each other, the first side wall and the second side wall are close to and attached to each other, and the straight section closes the infusion channel.
7. The dental irrigator of claim 1 further comprising:
feed liquor check valve, the feed liquor check valve is located being close to of infusion passageway one side of income liquid mouth, the feed liquor check valve allows liquid in the liquid reserve tank gets into infusion passageway and prevention liquid in the infusion passageway gets into the liquid reserve tank.
8. The dental irrigator of claim 7, further comprising:
the infusion seat is provided with a liquid inlet channel communicated with the infusion channel, one part of the infusion seat is inserted into the infusion channel from the liquid inlet, and the other part of the infusion seat is positioned outside the infusion channel;
the liquid inlet one-way valve is abutted to one side of the infusion seat, which is back to the infusion hose, and at least one part of the liquid inlet one-way valve covers the liquid inlet channel;
when the pressure in the liquid inlet channel is higher than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, at least one part of the liquid inlet one-way valve is pushed by pressure difference to move in the direction away from the infusion seat to open the liquid inlet channel, so that the liquid inlet channel is communicated with the infusion channel;
when the pressure in the liquid inlet channel is not more than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, at least one part of the liquid inlet one-way valve resets to close the liquid inlet channel, so that the liquid inlet channel is disconnected with the infusion channel.
9. The dental irrigator of claim 8 wherein a liquid inlet seal is provided between the outer peripheral surface of said portion of said infusion seat and the inner wall of said infusion channel.
10. The tooth-rinsing device as claimed in claim 8, wherein a support seat is provided in said liquid-feeding channel, said liquid-feeding one-way valve is held between said support seat and said liquid-feeding seat, and an avoiding groove is provided on a side of said support seat facing said liquid-feeding port;
the feed liquor check valve includes:
the annular seat is clamped between the supporting seat and the infusion seat and surrounds the avoidance groove;
one end of the movable tongue is connected with the inner circumferential surface of the annular seat, the other end of the movable tongue moves relative to the annular seat, and the movable tongue covers the liquid inlet channel;
when the pressure in the liquid inlet channel is greater than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, the movable tongue is pushed by pressure difference to move towards the direction far away from the infusion seat to open the liquid inlet channel, and the movable tongue extends into the avoiding groove to enable the liquid inlet channel to be communicated with the infusion channel;
when the pressure in the liquid inlet channel is not more than the pressure in the infusion channel between the liquid inlet one-way valve and the liquid outlet one-way valve, the movable tongue resets to close the liquid inlet channel, so that the liquid inlet channel is disconnected with the infusion channel.
11. The dental irrigator of claim 1 wherein the nozzle has an inner diameter no greater than 5 mm.
12. The dental irrigator according to any one of claims 1 to 11, wherein said pump body comprises:
the liquid pump shell is provided with a pump liquid cavity communicated with the infusion channel;
the motor is arranged in the pump liquid cavity and is provided with an output shaft;
the transmission mechanism is arranged in the pump liquid cavity and is in transmission connection with the output shaft;
the connecting rod is arranged in the pump liquid cavity, one end of the connecting rod is in transmission connection with the transmission mechanism, and the motor drives the connecting rod to do reciprocating motion through the transmission mechanism;
the piston is arranged in the pump liquid cavity and is connected with the other end of the connecting rod, the piston is hermetically connected with the inner wall of the pump liquid cavity, and the connecting rod drives the piston to reciprocate;
when the piston moves towards the liquid cavity of the pump, negative pressure is formed in the liquid conveying channel, liquid in the liquid storage tank is pumped into the liquid conveying channel, and the liquid level in the nozzle is kept unchanged under the action of pressure difference;
when the piston moves towards the outside of the pump liquid cavity, the liquid in the liquid conveying channel is pushed into the nozzle.
13. The dental irrigator of claim 12, wherein the fluid pump housing comprises:
a main housing forming the pump fluid chamber;
piston housing, piston housing locates the pump liquid chamber and install in the main casing body, piston movably install in the piston housing, the piston with be equipped with piston seal between piston housing's the inner wall, the outer peripheral face of piston is equipped with the piston seal ring groove of extending along its circumference, perhaps piston housing's inner wall is equipped with the piston seal groove of extending along its circumference, piston seal is located in the piston seal ring groove.
14. The dental irrigator of claim 13 wherein the piston seal is a Y-seal having an opening on an end surface thereof facing away from the connecting rod, the opening being progressively smaller as the piston moves into the pump chamber and progressively larger as the piston moves out of the pump chamber.
15. The dental irrigator according to claim 13 wherein said piston ring grooves are spaced axially of said piston and said piston seals are spaced one to one with said piston ring grooves.
16. The dental irrigator of claim 13 wherein said main body comprises:
the pump body is arranged in the host shell;
the liquid way spare, the liquid way spare is located in the host computer casing, the infusion passageway go into the liquid mouth with the liquid outlet is located the liquid way spare, the liquid way spare still include with the pump liquid mouth of infusion passageway intercommunication, the piston housing inserts pump liquid mouth, the inner wall of pump liquid mouth is equipped with the location arch, the outer peripheral face of piston housing be equipped with the protruding complex in location the positioning ring groove.
17. The apparatus as claimed in claim 16, wherein the pump port and the outlet are disposed at two ends of the liquid path member, and the inlet is disposed at a periphery of the liquid path member.
18. The dental irrigator of claim 16 wherein a stop is provided in said fluid passage member for mounting to said outlet check valve, said infusion channel having a cross-sectional area that decreases from said pump port to said stop;
wherein the liquid inlet is communicated with the infusion channel between the liquid pumping port and the stopping portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123232721.XU CN216823741U (en) | 2021-12-17 | 2021-12-17 | Tooth flushing device |
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| CN202123232721.XU CN216823741U (en) | 2021-12-17 | 2021-12-17 | Tooth flushing device |
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| CN216823741U true CN216823741U (en) | 2022-06-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093464A1 (en) * | 2022-11-04 | 2024-05-10 | 上海飞象健康科技有限公司 | Compact liquid release system and oral cleaning method |
| WO2024093465A1 (en) * | 2022-11-04 | 2024-05-10 | 上海飞象健康科技有限公司 | Compact liquid outlet system and portal oral irrigator |
-
2021
- 2021-12-17 CN CN202123232721.XU patent/CN216823741U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024093464A1 (en) * | 2022-11-04 | 2024-05-10 | 上海飞象健康科技有限公司 | Compact liquid release system and oral cleaning method |
| WO2024093465A1 (en) * | 2022-11-04 | 2024-05-10 | 上海飞象健康科技有限公司 | Compact liquid outlet system and portal oral irrigator |
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