CN219332035U - Anti-blocking shearing cavitation nozzle and tooth-flushing device - Google Patents
Anti-blocking shearing cavitation nozzle and tooth-flushing device Download PDFInfo
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- CN219332035U CN219332035U CN202320843566.5U CN202320843566U CN219332035U CN 219332035 U CN219332035 U CN 219332035U CN 202320843566 U CN202320843566 U CN 202320843566U CN 219332035 U CN219332035 U CN 219332035U
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Abstract
The application provides an anti-blocking shearing type cavitation nozzle and a tooth washer, wherein the anti-blocking shearing type cavitation nozzle comprises a spray rod, a main body, a shearing piece, a discharge anti-blocking piece and a back suction anti-blocking piece; the main body is internally provided with a cavitation cavity, two ends of the main body are respectively provided with a water inlet and a water outlet which are communicated with the cavitation cavity, the main body is communicated with the water outlet end of the spray rod, a liquid flow channel which is communicated with the water outlet end of the spray rod is arranged in the spray rod, the shearing part is arranged in the cavitation cavity, a discharge cavity is defined between the shearing part and the water outlet, a suction cavity is defined between the shearing part and the water inlet, the discharge anti-blocking part is arranged in the discharge cavity, and the suction anti-blocking part is arranged in the suction cavity. The discharging cavity and the back suction cavity at the upper end and the lower end of the shearing piece are respectively provided with a discharging anti-blocking piece and a back suction anti-blocking piece, so that the shearing piece is prevented from blocking the water outlet and the water inlet, hidden danger of blocking caused by the shearing piece is eliminated, and the efficiency is indirectly improved.
Description
Technical Field
The utility model relates to the field of nursing and cleaning, in particular to an anti-blocking shearing cavitation nozzle and a tooth washer.
Background
Most of the commercial tooth flushers are pulsed water flow, and cavitation structures are gradually introduced into the design in order to obtain higher cleaning efficiency and softer rinsing experience. Cavitation is the general term for the processes of accumulation, flow, splitting and collapse of bubbles when the local pressure in a flow channel is reduced to a critical pressure (generally close to the vaporization pressure), and the energy generated by the explosion of cavitation bubbles can effectively remove bacterial plaques.
Some current cavitation structures also exist, a shearing part is arranged in a cavitation cavity of a nozzle, and water flow impact movement is carried out in the cavitation cavity through the shearing part (such as a ball) to shear and impact water flow for cavitation. However, the shearing member can easily block the water inlet or the water outlet of the cavitation chamber during the movement, so that the problem needs to be solved.
Disclosure of Invention
An object of the present utility model is to provide a water flow cavitation nozzle that prevents a cutting member from blocking the nozzle, so as to improve the cleaning ability and efficiency of water flow;
the utility model aims at providing a tooth flusher which is matched with a cavitation nozzle to improve the plaque removing capacity of teeth in an oral cavity;
the utility model provides an anti-blocking shearing cavitation nozzle for solving the problem, which is characterized by comprising a spray boom, a main body, a shearing piece, a discharge anti-blocking piece and a back suction anti-blocking piece; the novel water pump is characterized in that a cavitation cavity is formed in the main body, a water inlet and a water outlet which are communicated with the cavitation cavity are formed in two ends of the main body respectively, the main body is communicated with a spray rod water outlet end of the spray rod, a liquid flow channel which is communicated with the spray rod water outlet end is arranged in the spray rod, a shearing piece is arranged in the cavitation cavity, a discharging cavity is defined between the shearing piece and the water outlet, a back suction cavity is defined between the shearing piece and the water inlet, a discharging anti-blocking piece is arranged in the discharging cavity, and a back suction anti-blocking piece is arranged in the back suction cavity.
Preferably, the discharging anti-blocking piece is an anti-blocking protrusion or an anti-blocking groove; the anti-blocking protrusion or the anti-blocking groove is arranged at the water outlet of the main body and faces the shearing piece; or the anti-blocking protrusion or the anti-blocking groove is arranged on the shearing piece and faces the water outlet.
Preferably, the discharging anti-blocking member is an elastic discharging anti-blocking member, and the elastic discharging anti-blocking member is arranged between the water outlet of the main body and the shearing member.
Preferably, the back suction anti-blocking piece is an anti-blocking protrusion or an anti-blocking groove; the anti-blocking protrusion or the anti-blocking groove is arranged at the water inlet of the main body and faces the shearing piece; or the anti-blocking protrusion or the anti-blocking groove is arranged on the shearing piece and faces the water inlet.
Preferably, the back suction anti-blocking member is an elastic back suction anti-blocking member, and the elastic back suction anti-blocking member is arranged between the water inlet of the main body and the shearing member.
Preferably, the elastic discharging anti-blocking member is a spring.
Preferably, the elastic back suction anti-blocking piece is a spring.
Preferably, the shearing member is a sphere.
Preferably, the shearing piece is provided with a through hole, and two ends of the through hole correspond to the water inlet and the water outlet respectively.
The above technical schemes alone or in combination exhibit the following beneficial effects:
the discharging cavity and the back suction cavity at the upper end and the lower end of the shearing piece are respectively provided with a discharging anti-blocking piece and a back suction anti-blocking piece, so that the shearing piece is prevented from blocking the water outlet and the water inlet, hidden danger of blocking caused by the shearing piece is eliminated, and the efficiency is indirectly improved.
The shearing piece divides the water flow in the cavitation cavity into at least an inner flow channel and an outer flow channel, so that the inner flow and the outer flow of the shearing piece form a flow velocity difference, the shearing of the fluid in fluid mechanics can be understood as the friction of solids, the fluid can be regarded as a layer-by-layer superposition state, the interaction between layers is weak in a uniform velocity state, namely the shearing effect is weak, and when the flow velocity difference exists, the shearing effect between layers is enhanced; therefore, the water flow with the flow velocity difference impacts and shears near the water outlet of the cavitation cavity at the downstream position of the shearing piece to form cavitation of liquid-liquid interaction, and air in the water flow is subjected to water flow cavitation in an impact and shearing mode to generate bubbles.
When the water inlet is pulsed water flow, in a pulse water spraying period, the shearing piece is pushed outwards when the water inlet is used for water delivery, after one pulse period is finished, part of water in the main body flows back to drive the shearing piece to reset, and when the water inlet is used for water delivery, the shearing piece is pushed outwards again when the water inlet is used for water delivery, so that the shearing piece end face forms solid-liquid impact extrusion to the water flow in a circulating mode, and the water flow can be sheared in a reciprocating mode.
The shearing piece performs solid-liquid impact (upper and lower end surfaces of the shearing piece) and shearing (peripheral wall surface of the shearing piece) cavitation by the elastic reset piece in the cavitation cavity in cooperation with the impact reciprocating motion of water flow, and the water flow in the cavitation cavity is further assisted; through secondary shearing, promote holistic rivers cavitation effect, form a large amount of bubbles, strengthen rivers cleaning effect.
The utility model provides an anti-blocking shearing type tooth washer, which is characterized by comprising a tooth washer body and an anti-blocking shearing type cavitation nozzle; the anti-blocking shearing type cavitation nozzle is arranged on the water outlet pipeline of the tooth washer body.
The beneficial effects of adopting the technical scheme are as follows:
the anti-blocking shearing type cavitation nozzle is arranged on the water outlet pipeline of the tooth washer body, so that the water flow of the tooth washer can form cavitation effect, a large amount of bubbles are generated, hidden danger that the nozzle is blocked by the shearing piece is discharged, dental plaque is cleared away better, and the oral cavity is cleaned.
Drawings
FIG. 1 shows a schematic structure of an anti-blocking shear cavitation nozzle of the present utility model.
FIG. 2 shows a cross-section of A-A in FIG. 1.
Fig. 3 shows a partially enlarged view of fig. 2.
Fig. 4 shows another position of the shear member of fig. 3.
Fig. 5 shows another structural schematic of the present utility model.
Fig. 6 shows a further structural schematic of the utility model.
Fig. 7 shows a perspective view of the structure of the shear member of fig. 5.
Fig. 8 shows a perspective view of the structure of the shear member of fig. 6.
Wherein:
Detailed Description
The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.
Example 1:
referring to fig. 1 to 8, the present embodiment provides an anti-blocking shear cavitation nozzle, which mainly includes a spray rod 1, a main body 2, a shear member 3, a discharge anti-blocking member and a suck-back anti-blocking member. With further reference to fig. 1 and 2, the main body 2 is a main body structure of the nozzle, the main body is internally provided with a cavitation cavity 21, water flows into the cavitation cavity 21 and then is sheared and cavitated by the shearing member 3, gas in the extruded water forms bubbles, two ends of the main body 2 are provided with a water inlet 201 and a water outlet 202 which are communicated with the cavitation cavity 21, the water inlet 201 is generally detachably connected with an external water outlet pipeline through a spray rod 1, cavitation water flows are sprayed out through the water outlet 202, and the water inlet 201 can also be fixedly connected through the spray rod 1 or integrally injection molded with the external water outlet pipeline, which is not limited only.
The spray lance 1 is as the structure with the external connection of water outlet equipment, and its both ends are spray lance water inlet end 101 and spray lance water outlet end 102 respectively, and its inside has the liquid flow channel 103 that communicates spray lance water inlet end 101 and spray lance water outlet end 102, and spray lance water outlet end 102 and the water inlet intercommunication of main part 2 are convenient to its water supply.
Referring to fig. 4 and 5, the shearing member 3 is disposed in the cavitation chamber 21 to shear water flow. Further, in this embodiment, a discharge cavity 211 is defined between the shear member 3 and the water outlet 202, a suck-back cavity 212 is defined between the shear member 3 and the water inlet 201, a discharge anti-blocking member is disposed in the discharge cavity 211, and a suck-back anti-blocking member is disposed in the suck-back cavity 212. When the pulse water flow impacts the shearing part 3 to impact the water outlet 202, the discharging anti-blocking part prevents the shearing part 3 from blocking the water outlet 202 to influence the water outlet of the nozzle, and when the shearing part 3 impacts the water inlet 201 after one pulse is finished and the water flow is sucked back due to pressure difference, the sucking anti-blocking part prevents the shearing part 3 from blocking the water inlet 201 to influence the next water flow pulse.
The foregoing aspects are essential to the implementation of the present embodiment, and are described in further detail below with reference to the accompanying drawings and detailed description:
the discharge blocking preventing member and the suck-back blocking preventing member are intended to prevent the shear member 3 from blocking the water inlet 201 and the water outlet 202, and the structural form thereof is not particularly limited in this embodiment. In this regard, the present embodiment illustrates several specific forms for the discharge anti-blocking member and the suck-back anti-blocking member for the understanding of those skilled in the art:
1. referring to fig. 3 to 6 in combination with fig. 7 and 8, the discharge blocking preventing member is a discharge blocking preventing protrusion 41 or a discharge blocking preventing groove. Specifically, the discharge anti-blocking protrusion 41 or the discharge anti-blocking groove is provided at the water outlet 202 of the main body 2 and faces the shear member 3 (please refer to fig. 3 and 6); alternatively, the discharge anti-blocking protrusion 41 or the discharge anti-blocking groove is provided on the shear member 3 and faces the water outlet 202, and at this time, referring to fig. 7, the discharge anti-blocking protrusion is implemented as a shear member discharge anti-blocking protrusion 41a provided on the shear member 3. The purpose is that the top of the shearing piece 3 and the water outlet 202 cannot be completely attached and blocked, and a gap between the top of the shearing piece 3 and the water outlet 202 is formed by a bulge or a groove, so that the blocking caused by the bulge or the groove is prevented. The discharge anti-blocking groove is not shown in the drawings, but can be known by combining fig. 7, the suction anti-blocking groove 42 is formed at the water inlet in fig. 7, and the structure of the discharge anti-blocking groove is the same as that of the suction anti-blocking groove, and the person skilled in the art can know from fig. 7;
2. referring to fig. 6 and 8, the discharge anti-blocking member may be an elastic discharge anti-blocking member 41b, where the elastic discharge anti-blocking member 41b is disposed between the water outlet 202 of the main body 2 and the shear member 3, and specifically, the elastic discharge anti-blocking member 41b may be fixed at the water outlet 202 or fixed at the top of the shear member 3 or movably disposed between the water outlet 202 and the shear member 3. The elastic discharge anti-blocking member 41b is arranged between the water outlet 202 and the shearing member 3, and when the shearing member 3 impacts the water outlet 202, a reaction force is generated to spring away, so that blocking is prevented. Preferably, the elastic discharge blocking prevention member 41b is a spring, which is fixed to the top of the shear member 3.
3. Please refer to fig. 3-6 in combination with fig. 7 and 8, the same as the discharging anti-blocking member, the suck-back anti-blocking member is a suck-back anti-blocking protrusion or a suck-back anti-blocking groove 42. Specifically, the suck-back anti-blocking protrusion or the suck-back anti-blocking groove 42 is provided at the water inlet 201 of the main body 2 and faces the shear member 3; alternatively, the suck-back blocking preventing protrusion and suck-back blocking preventing groove 42 is provided on the shear member 3 and faces the water inlet 201, and at this time, referring to fig. 7, the discharge blocking preventing protrusion is implemented as a shear member suck-back blocking preventing protrusion 42a provided on the shear member 3. The purpose is that the top of the shearing piece 3 and the water inlet 201 cannot be completely attached and plugged, and a gap between the top of the shearing piece 3 and the water inlet 201 is formed through a bulge or a groove, so that the blockage caused by the bulge or the groove is prevented;
4. referring to fig. 6 and 8, the suck-back blocking preventing member may be an elastic suck-back blocking preventing member 42b, where the elastic suck-back blocking preventing member 42b is disposed between the water inlet 201 of the main body 2 and the shear member 3, and specifically, the elastic suck-back blocking preventing member 42b may be fixed at the water inlet 201 or fixed at the bottom of the shear member 3 or movably disposed between the water inlet 201 and the shear member 3 to achieve the purpose. The elastic suck-back anti-blocking piece 42b is arranged between the water inlet 201 and the shearing piece 3, and when the shearing piece 3 impacts the water inlet 201, a reaction force is generated to spring open, so that blocking is prevented. Preferably, the resilient suck-back blocking prevention member 42b is a spring, and may be fixed to the top of the shear member 3.
The embodiments of the discharge blocking prevention member and the suck-back blocking prevention member illustrated above are not intended to be the only limitations of the present embodiment, and other equivalent structures are also included. More needs to indicate, when the space of the above discharge anti-blocking protrusion 41, the discharge anti-blocking groove or the elastic discharge anti-blocking piece 41b meets the requirement, the three can be independently used as the discharge anti-blocking piece, or can be combined two by two, even the three are combined to form the discharge anti-blocking piece, so that the anti-blocking effect is achieved; the same is true for the suck-back anti-blocking member.
Further, referring to fig. 5 and 7, in order to enhance the shearing effect, the shearing member 3 is provided with a through hole 31, and the shearing member 3 divides the water flow into an inner layer and an outer layer according to different flow rates, so that the liquid-liquid shearing is completed due to different flow rates when the two water flows are combined. Specifically, the shearing part 3 is arranged in the cavitation cavity 21, the shearing part 3 is divided into an inner runner and an outer runner by the through hole 31, the water inlet ends of the inner runner and the outer runner correspond to the water inlet 201, the water outlet ends of the inner runner and the outer runner correspond to the water outlet 202, and the two water flows of the inner runner and the outer runner have different flow rates to perform liquid-liquid secondary shearing cavitation, so that the shearing cavitation effect is improved.
In this embodiment, the water flow space between the outer part of the shear member 3 and the inner wall of the main body 2 forms an outer flow channel, and a part of the water flow at the water inlet 201 of the main body 2 passes through the outer flow channel and reaches the water outlet 202; the through-hole 31 penetrating the inside of the shear member 3 forms an inner flow passage of the shear member 3.
The water flow entering through the water inlet 201 can be better split into the outer flow channel and the inner flow channel for convenience. The aperture of the end of the cutting member 3 near the water inlet 201 of the main body 2 may be smaller than the caliber of the water inlet 201 or smaller than the inner diameter of the water outlet end of the flow channel 103, so that when a large amount of water is fed into the water inlet 201, a part of water enters the through hole 31, and a part of water impacts on the cutting member 3 to push away the cutting member 3, so that a part of water also enters the outer flow channel through the space between the cutting member 3 and the water inlet 201. This can enhance the pushing action of the water sprayed from the spray bar 1 on the shear member 3 (if the aperture of the spray bar water outlet end 102 is smaller than the aperture of the through hole 31, the pushing effect of the water sprayed from the spray bar 1 on the shear member 3 is poor).
Further, the shearing piece 3 is a sphere, so that water flow shearing is conveniently and better carried out.
The beneficial effects of this embodiment are:
the shearing member 3 divides the water flow in the cavitation chamber 21 into at least an inner flow path and an outer flow path, so that the inner flow path and the outer flow path of the shearing member 3 form a flow velocity difference, the shearing of the fluid can be understood as the friction of solids in fluid mechanics, the fluid can be regarded as a layer-by-layer superposition state, the interaction between layers is weak in a uniform velocity state, namely the shearing effect is weak, and when the flow velocity difference exists, the shearing effect between layers is enhanced; thus, the water flow with the flow velocity difference impacts and shears near the water outlet 202 of the cavitation chamber 21 at the downstream position of the shearing member 3 to form cavitation of liquid-liquid interaction, and air in the water flow is subjected to water flow cavitation in the form of impact and shearing to generate bubbles.
When the water inlet 201 is pulsed water flow, in a pulse water spraying period, the shearing part 3 is pushed outwards when the water inlet 201 is used for delivering water, after one pulse period is finished, water in the main body 2 flows back to drive the shearing part 3 to reset, and when the next pulse is used for spraying water, the shearing part 3 is pushed outwards again when the water inlet 201 is used for delivering water, and thus the shearing part 3 is circularly reciprocated to form solid-liquid impact extrusion on the water flow, and then the water flow can be reciprocally sheared.
The shearing piece 3 performs solid-liquid impact (upper and lower end surfaces of the shearing piece 3) and shearing (peripheral wall surface of the shearing piece 3) cavitation by the elastic reset piece in the cavitation cavity 21 in cooperation with the impact reciprocating motion of water flow, and the water flow in the cavitation cavity 21 is further assisted; through secondary shearing, promote holistic rivers cavitation effect, form a large amount of bubbles, strengthen rivers cleaning effect.
The discharge cavity 211 and the back suction cavity 212 at the upper and lower ends of the shearing part 3 are respectively provided with a discharge anti-blocking part and a back suction anti-blocking part, so that the shearing part 3 is prevented from blocking the water outlet 202 and the water inlet 201, hidden danger of blocking caused by the shearing part 3 is eliminated, and the efficiency is indirectly improved.
Example 2:
the embodiment provides an anti-blocking shearing type tooth washer, which comprises a tooth washer body and an anti-blocking shearing type cavitation nozzle. Wherein, prevent stifled shearing formula cavitation nozzle installs in the outlet pipe way of tooth flusher body. The tooth-rinsing device body is suitable for any commercial or existing tooth-rinsing device (except for the nozzle), and the anti-blocking shearing cavitation nozzle is arranged on the tooth-rinsing device body.
Specifically, the nozzle mainly comprises a spray rod 1, a main body 2, a shearing piece 3, a discharge anti-blocking piece and a back suction anti-blocking piece. The main body 2 is a main body structure of a nozzle, a cavitation cavity 21 is formed in the main body 2, water flows into the cavitation cavity 21 and is sheared and cavitated by the shearing piece 3, gas in water is extruded to form bubbles, a water inlet 201 and a water outlet 202 which are communicated with the cavitation cavity 21 are formed at two ends of the main body 2, the water inlet 201 is generally detachably connected with an external water outlet pipeline (a water pump which is specifically communicated with a tooth cleaner body) through a spray rod 1, the water pump generates pulse water flow, and the water flow cavitation is carried out after the water flow enters the cavitation cavity, and then the water flow is sprayed out through the water outlet 202.
The spray lance 1 is as the structure with the external connection of water outlet equipment, and its both ends are spray lance water inlet end 101 and spray lance water outlet end 102 respectively, and its inside has the liquid flow channel 103 that communicates spray lance water inlet end 101 and spray lance water outlet end 102, and spray lance water outlet end 102 and the water inlet intercommunication of main part 2 are convenient to its water supply.
The shearing member 3 is provided in the cavitation chamber 21 to shear the water flow. Further, in this embodiment, a discharge cavity 211 is defined between the shear member 3 and the water outlet 202, a suck-back cavity 212 is defined between the shear member 3 and the water inlet 201, a discharge anti-blocking member is disposed in the discharge cavity 211, and a suck-back anti-blocking member is disposed in the suck-back cavity 212. When the pulse water flow impacts the shearing part 3 to impact the water outlet 202, the discharging anti-blocking part prevents the shearing part 3 from blocking the water outlet 202 to influence the water outlet of the nozzle, and when the shearing part 3 impacts the water inlet 201 after one pulse is finished and the water flow is sucked back due to pressure difference, the sucking anti-blocking part prevents the shearing part 3 from blocking the water inlet 201 to influence the next water flow pulse.
The discharge blocking preventing member and the suck-back blocking preventing member are intended to prevent the shear member 3 from blocking the water inlet 201 and the water outlet 202, and the structural form thereof is not particularly limited in this embodiment. In this regard, the present embodiment illustrates several specific forms for the discharge anti-blocking member and the suck-back anti-blocking member for the understanding of those skilled in the art:
1. referring to fig. 3 to 6 in combination with fig. 7 and 8, the discharge blocking preventing member is a discharge blocking preventing protrusion 41 or a discharge blocking preventing groove. Specifically, the discharge anti-blocking protrusion 41 or the discharge anti-blocking groove is provided at the water outlet 202 of the main body 2 and faces the shear member 3 (please refer to fig. 3 and 6); alternatively, the discharge anti-blocking protrusion 41 or the discharge anti-blocking groove is provided on the shear member 3 and faces the water outlet 202, and at this time, referring to fig. 7, the discharge anti-blocking protrusion is implemented as a shear member discharge anti-blocking protrusion 41a provided on the shear member 3. The purpose is that the top of the shearing piece 3 and the water outlet 202 cannot be completely attached and blocked, and a gap between the top of the shearing piece 3 and the water outlet 202 is formed by a bulge or a groove, so that the blocking caused by the bulge or the groove is prevented. The discharge anti-blocking groove is not shown in the drawings, but can be known by combining fig. 7, the suction anti-blocking groove 42 is formed at the water inlet in fig. 7, and the structure of the discharge anti-blocking groove is the same as that of the suction anti-blocking groove, and the person skilled in the art can know from fig. 7;
2. referring to fig. 6 and 8, the discharge anti-blocking member may be an elastic discharge anti-blocking member 41b, where the elastic discharge anti-blocking member 41b is disposed between the water outlet 202 of the main body 2 and the shear member 3, and specifically, the elastic discharge anti-blocking member 41b may be fixed at the water outlet 202 or fixed at the top of the shear member 3 or movably disposed between the water outlet 202 and the shear member 3. The elastic discharge anti-blocking member 41b is arranged between the water outlet 202 and the shearing member 3, and when the shearing member 3 impacts the water outlet 202, a reaction force is generated to spring away, so that blocking is prevented. Preferably, the elastic discharge blocking prevention member 41b is a spring, which is fixed to the top of the shear member 3.
3. Please refer to fig. 3-6 in combination with fig. 7 and 8, the same as the discharging anti-blocking member, the suck-back anti-blocking member is a suck-back anti-blocking protrusion or a suck-back anti-blocking groove 42. Specifically, the suck-back anti-blocking protrusion or the suck-back anti-blocking groove 42 is provided at the water inlet 201 of the main body 2 and faces the shear member 3; alternatively, the suck-back blocking preventing protrusion and suck-back blocking preventing groove 42 is provided on the shear member 3 and faces the water inlet 201, and at this time, referring to fig. 7, the discharge blocking preventing protrusion is implemented as a shear member suck-back blocking preventing protrusion 42a provided on the shear member 3. The purpose is that the top of the shearing piece 3 and the water inlet 201 cannot be completely attached and plugged, and a gap between the top of the shearing piece 3 and the water inlet 201 is formed through a bulge or a groove, so that the blockage caused by the bulge or the groove is prevented;
4. referring to fig. 6 and 8, the suck-back blocking preventing member may be an elastic suck-back blocking preventing member 42b, where the elastic suck-back blocking preventing member 42b is disposed between the water inlet 201 of the main body 2 and the shear member 3, and specifically, the elastic suck-back blocking preventing member 42b may be fixed at the water inlet 201 or fixed at the bottom of the shear member 3 or movably disposed between the water inlet 201 and the shear member 3 to achieve the purpose. The elastic suck-back anti-blocking piece 42b is arranged between the water inlet 201 and the shearing piece 3, and when the shearing piece 3 impacts the water inlet 201, a reaction force is generated to spring open, so that blocking is prevented. Preferably, the resilient suck-back blocking prevention member 42b is a spring, and may be fixed to the top of the shear member 3.
The embodiments of the discharge blocking prevention member and the suck-back blocking prevention member illustrated above are not intended to be the only limitations of the present embodiment, and other equivalent structures are also included. More needs to indicate, when the space is available, the above discharge anti-blocking protrusion 41, the discharge anti-blocking groove or the elastic discharge anti-blocking member 41b can be used as the discharge anti-blocking member alone, or can be combined two by two, or even the three can be combined to form the discharge anti-blocking member, so that the anti-blocking effect is achieved; the same is true for the suck-back anti-blocking member.
Further, referring to fig. 5 and 7, in order to enhance the shearing effect, the shearing member 3 is provided with a through hole 31, and the shearing member 3 divides the water flow into an inner layer and an outer layer according to different flow rates, so that the liquid-liquid shearing is completed due to different flow rates when the two water flows are combined. Specifically, the shearing part 3 is arranged in the cavitation cavity 21, the shearing part 3 is divided into an inner runner and an outer runner by the through hole 31, the water inlet ends of the inner runner and the outer runner correspond to the water inlet 201, the water outlet ends of the inner runner and the outer runner correspond to the water outlet 202, and the two water flows of the inner runner and the outer runner have different flow rates to perform liquid-liquid secondary shearing cavitation, so that the shearing cavitation effect is improved.
In this embodiment, the water flow space between the outer part of the shear member 3 and the inner wall of the main body 2 forms an outer flow channel, and a part of the water flow at the water inlet 201 of the main body 2 passes through the outer flow channel and reaches the water outlet 202; the through-hole 31 penetrating the inside of the shear member 3 forms an inner flow passage of the shear member 3.
The water flow entering through the water inlet 201 can be better split into the outer flow channel and the inner flow channel for convenience. The aperture of the end of the cutting member 3 near the water inlet 201 of the main body 2 may be smaller than the caliber of the water inlet 201 or smaller than the inner diameter of the water outlet end of the flow channel 103, so that when a large amount of water is fed into the water inlet 201, a part of water enters the through hole 31, and a part of water impacts on the cutting member 3 to push away the cutting member 3, so that a part of water also enters the outer flow channel through the space between the cutting member 3 and the water inlet 201. This can enhance the pushing action of the water sprayed from the spray bar 1 on the shear member 3 (if the aperture of the spray bar water outlet end 102 is smaller than the aperture of the through hole 31, the pushing effect of the water sprayed from the spray bar 1 on the shear member 3 is poor).
Further, the shearing piece 3 is a sphere, so that water flow shearing is conveniently and better carried out.
The beneficial effects of this embodiment are:
the anti-blocking shearing type cavitation nozzle is arranged on the water outlet pipeline of the tooth washer body, so that the water flow of the tooth washer can form cavitation effect, a large amount of bubbles are generated, hidden danger that the nozzle is blocked by the shearing piece 3 is discharged, dental plaque is cleared away better, and the oral cavity is cleaned.
It will be appreciated by persons skilled in the art that the embodiments of the utility model shown in the foregoing description are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (10)
1. The anti-blocking shearing cavitation nozzle is characterized by comprising a spray rod, a main body, a shearing piece, a discharge anti-blocking piece and a back suction anti-blocking piece; the novel water pump is characterized in that a cavitation cavity is formed in the main body, a water inlet and a water outlet which are communicated with the cavitation cavity are formed in two ends of the main body respectively, the main body is communicated with a spray rod water outlet end of the spray rod, a liquid flow channel which is communicated with the spray rod water outlet end is arranged in the spray rod, a shearing piece is arranged in the cavitation cavity, a discharging cavity is defined between the shearing piece and the water outlet, a back suction cavity is defined between the shearing piece and the water inlet, a discharging anti-blocking piece is arranged in the discharging cavity, and a back suction anti-blocking piece is arranged in the back suction cavity.
2. An anti-blocking shear cavitation nozzle as claimed in claim 1, wherein: the discharge anti-blocking piece is a discharge anti-blocking protrusion or a discharge anti-blocking groove; the discharge anti-blocking protrusion or the discharge anti-blocking groove is arranged at the water outlet of the main body and faces the shearing piece; or the discharge anti-blocking protrusion or the discharge anti-blocking groove is arranged on the shearing piece and faces the water outlet.
3. An anti-blocking shear cavitation nozzle as claimed in claim 1, wherein: the discharge anti-blocking piece is an elastic discharge anti-blocking piece, and the elastic discharge anti-blocking piece is arranged between the water outlet of the main body and the shearing piece.
4. An anti-blocking shear cavitation nozzle as claimed in claim 1, wherein: the back suction anti-blocking piece is a back suction anti-blocking bulge or a back suction anti-blocking groove; the suck-back anti-blocking protrusion or the suck-back anti-blocking groove is arranged at the water inlet of the main body and faces the shearing piece; or the suck-back anti-blocking protrusion or the suck-back anti-blocking groove is arranged on the shearing piece and faces the water inlet.
5. An anti-blocking shear cavitation nozzle as claimed in claim 1, wherein: the back suction anti-blocking piece is an elastic back suction anti-blocking piece, and the elastic back suction anti-blocking piece is arranged between the water inlet of the main body and the shearing piece.
6. An anti-blocking shear cavitation nozzle as claimed in claim 3, wherein: the elastic discharging anti-blocking piece is a spring.
7. An anti-blocking shear cavitation nozzle as claimed in claim 5, wherein: the elastic back suction anti-blocking piece is a spring.
8. An anti-blocking shear cavitation nozzle as claimed in claim 1, wherein: the shearing piece is a sphere.
9. An anti-blocking shear cavitation nozzle as claimed in claim 1, wherein: the shearing piece is provided with a through hole, and two ends of the through hole correspond to the water inlet and the water outlet respectively.
10. An anti-blocking shear type tooth washer, which is characterized by comprising a tooth washer body and an anti-blocking shear type cavitation nozzle as claimed in any one of the above claims; the anti-blocking shearing type cavitation nozzle is arranged on the water outlet pipeline of the tooth washer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320843566.5U CN219332035U (en) | 2023-04-17 | 2023-04-17 | Anti-blocking shearing cavitation nozzle and tooth-flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320843566.5U CN219332035U (en) | 2023-04-17 | 2023-04-17 | Anti-blocking shearing cavitation nozzle and tooth-flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219332035U true CN219332035U (en) | 2023-07-14 |
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ID=87111048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320843566.5U Active CN219332035U (en) | 2023-04-17 | 2023-04-17 | Anti-blocking shearing cavitation nozzle and tooth-flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219332035U (en) |
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2023
- 2023-04-17 CN CN202320843566.5U patent/CN219332035U/en active Active
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