CN112196759A

CN112196759A - Pulse water pump and tooth washing device

Info

Publication number: CN112196759A
Application number: CN202010293829.0A
Authority: CN
Inventors: 张青; 刘小文; 李进峰; 刘信全; 周刚; 王刚
Original assignee: Fly Cat Electrical Co Ltd
Current assignee: Fly Cat Electrical Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-01-08
Also published as: WO2021208286A1

Abstract

The invention belongs to the technical field of tooth cleaning, and particularly relates to a pulse water pump and a tooth cleaner, wherein the pulse water pump comprises: the pump body is provided with a pump pumping cavity, a water inlet hole and a water outlet hole, the pump pumping cavity is of an open cavity structure, the pump pumping cavity is communicated to the outside through the water inlet hole and the water outlet hole, the water inlet hole is used for introducing water into the pump pumping cavity, and the water outlet hole is used for leading the water out of the pump pumping cavity; the pump pressure membrane is made of elastic materials, seals the cavity opening of the pump pressure cavity and is connected with the pump body in a sealing way; and the driver is used for driving the middle part of the pump pressing film to reciprocate in the direction of the opening of the pump pressure cavity. The invention can effectively avoid the problem of reduced sealing performance between the pump pressing film and the pump body after repeated use, does not need two sealing treatments, simplifies the structure and is beneficial to improving the reliability.

Description

Pulse water pump and tooth washing device

Technical Field

The invention belongs to the technical field of tooth cleaning, and particularly relates to a pulse water pump and a tooth cleaner.

Background

The pulse water pump of the existing tooth flushing device is mainly a piston type water pump, namely, a piston rod continuously reciprocates in a pump body, so that pulse type water supply is realized, wherein, in order to avoid direct outflow of water from the pump body, a sealing sleeve can be sleeved on a piston rod sleeve sealing ring and the pump body, a cylinder opening of the sealing sleeve is sleeved on the pump body, and another cylinder opening is sleeved on the piston rod. When the piston rod is sleeved with the sealing ring, as in chinese patent ZL201822239370.7, the joint position between the sealing ring and the pump body is constantly changed, the sealing ring may be worn to a certain extent, and the sealing performance between the sealing ring and the pump body is reduced, and there are problems of water leakage and air leakage after repeated use; when the piston rod and the pump body are sleeved with the sealing sleeve, the piston rod and the pump body are required to be in sealing connection with the sealing sleeve, two parts are required to be sealed, the structure is complex, and the reliability is reduced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a pulse water pump, which aims to solve the problems of water leakage and air leakage after repeated use, complex structure and low reliability.

The invention is realized by the following steps:

a pulsed water pump comprising:

the water pumping device comprises a pump body, a water inlet hole and a water outlet hole, wherein the pump pumping cavity is of an open cavity structure, the water inlet hole and the water outlet hole are used for communicating the pump pumping cavity to the outside, the water inlet hole is used for introducing water into the pump pumping cavity, and the water outlet hole is used for leading water out of the pump pumping cavity;

the pump pressure membrane is made of an elastic material, blocks a cavity opening of the pump pressure cavity and is connected with the pump body in a sealing mode;

and the driver is used for driving the middle part of the pump pressing film to reciprocate in the opening direction of the cavity of the pump pressing cavity.

Optionally, the pump body is provided with a pressure contact surface on an outer surface thereof, and a cavity opening of the pumping pressure cavity is provided on the pressure contact surface;

the pulse water pump further comprises a pressing piece, and the pressing piece is used for pressing the pump pressure film on the pressing surface.

Optionally, the pump body is provided with a pump-side anti-slip groove with an annular arrangement path at the edge of the pressure welding surface;

the pump pressing film is provided with a pump side anti-slip ring which is arranged in the pump side anti-slip groove in a protruding mode in the direction of the pump body at the film edge of the pump pressing film.

Optionally, the pressing piece arrangement path is an annular pressing and slip-off preventing groove;

the pump pressing film is convexly provided with a pressing and anti-falling ring which is arranged in the anti-falling groove in the direction of deviating from the pump body at the film edge.

Optionally, the water outlet hole is arranged opposite to the opening of the pumping chamber.

Optionally, the cross-sectional shape of the pumping chamber is gradually enlarged along the direction of the opening of the pumping chamber.

Optionally, the driver includes motor, initiative angle tooth, driven angle tooth, eccentric shaft and pumping pressure connecting rod, initiative angle tooth connect in the axis of rotation of motor and by motor drive rotates, driven angle tooth with initiative angle tooth meshing, the eccentric shaft connect in driven angle tooth, and its central axis with the axis of rotation of driven angle tooth is parallel and the interval sets up, the pumping pressure connecting rod seted up with eccentric shaft grafting complex interlock groove, the extending direction perpendicular to in the direction is seted up to the accent in pumping pressure chamber, the groove width in interlock groove equals the shaft diameter of eccentric shaft, the pumping pressure connecting rod with the mid portion of pump pressure membrane is connected.

Optionally, the pump pressure connecting rod is at least convexly provided with a guide rib on the peripheral side;

the pump body is provided with at least one guide groove, the extending direction of the guide groove is parallel to the opening direction of the opening of the pumping pressure cavity, the guide groove is used for guiding the guide rib to move along the opening direction of the opening of the pumping pressure cavity, and two groove walls of the guide groove are abutted to the guide rib.

Optionally, the pumping pressure linkage is removably coupled to the pumping membrane.

The invention also provides a tooth cleaner, which comprises the pulse water pump of the tooth cleaner.

Based on the structural design of the invention, firstly, after the pump pressing film is connected with the pump body in a sealing way, the connecting part of the pump pressing film and the pump body does not move relatively in the using process, thus effectively avoiding the problem of reduced sealing performance between the pump pressing film and the pump body after repeated use, secondly, in order to avoid the direct outflow of water in the pump body, only one sealing connection with the pump body is needed to be realized at the edge of the sealing film, namely, only one sealing is needed, and two sealing treatments are not needed, thereby simplifying the structure and being beneficial to improving the reliability.

Drawings

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

Fig. 1 is a perspective view of a pulsed water pump provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken in the direction AA of FIG. 1;

FIG. 3 is a cross-sectional view taken in the direction BB in FIG. 1;

fig. 4 is a cross-sectional view of the pump body in the direction AA in fig. 1 in the pulsed water pump provided by the embodiment of the present invention;

fig. 5 is a cross-sectional view of a pumping membrane in the pulse water pump in the direction AA in fig. 1, according to an embodiment of the present invention;

fig. 6 is a perspective view of a pump pressure link in the pulsed water pump provided by an embodiment of the present invention;

fig. 7 is a perspective view of a pressure patch in the pulse water pump provided by the embodiment of the invention;

fig. 8 is a perspective view of a dental prophylaxis device according to an embodiment of the present invention.

The reference numbers illustrate:

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the invention provides a pulse water pump which can be used for a tooth washing device and can realize pulse water supply.

Referring to fig. 1 to 5, the pulse water pump includes a pump body 100, a pump diaphragm 200, and a driver 300.

Pump pressure chamber 101, inlet opening 102 and apopore 103 have been seted up to pump body 100, and wherein, pump pressure chamber 101 is the opening chamber structure, and inlet opening 102 and apopore 103 all communicate pump pressure chamber 101 to the outside, and inlet opening 102 is used for introducing pump pressure chamber 101 with water, and apopore 103 is used for drawing water out pump pressure chamber 101. It should be noted here that the water inlet hole 102 can only introduce water into the pumping chamber 101, but cannot lead water out of the pumping chamber 101, and in practical use, the water inlet hole 102 is used for introducing water when the pulse water pump needs to introduce water, and specifically, can be implemented by matching with a one-way valve which only allows water to flow to the pumping chamber 101; the water outlet can only lead water out of the pumping chamber 101 but cannot lead water into the pumping chamber 101, and in practical use, the water inlet hole leads water in when the pulse water pump needs to lead water out, and specifically, a one-way valve which only allows water to flow out of the pumping chamber 101 can be matched in realization.

The pumping membrane 200 is made of an elastic material, such as silicone. The pump pressing film 200 seals the mouth of the pump pressing cavity 101 and is connected with the pump body 100 in a sealing mode, so that water can be prevented from flowing out of the body directly.

The driver 300 is used for driving the middle part of the pumping membrane 200 to reciprocate in the opening direction of the pumping chamber 101.

In the process that the driver 300 drives the middle part of the pump pressing film 200 to reciprocate in the opening direction of the pump cavity 101, the cavity space formed by the pump body 100 and the pump pressing film 200 is repeatedly switched between increasing and decreasing, wherein when the driver 300 drives the middle part of the pump pressing film 200 to move in the direction away from the pump cavity 101, the cavity space formed by the pump body 100 and the pump pressing film 200 is continuously increased, at the moment, the water is introduced into the pump cavity 101 through the water inlet hole 102, then, the driver 300 drives the middle part of the pump pressing film 200 to move in the direction of the pump cavity 101, the cavity space formed by the pump body 100 and the pump pressing film 200 is continuously decreased, at the moment, the water is led out of the pump cavity 101 through the water outlet, and the water is pumped out.

Based on this structural design, at first, after pump pressure membrane 200 and the pump body 100 sealing connection, pump pressure membrane 200 and the pump body 100 department of being connected, relative movement can not appear using this in-process, thus, can effectively avoid the problem that the leakproofness descends appearing after using repeatedly between pump pressure membrane 200 and the pump body 100, secondly, for avoiding the direct outflow of water in the pump body 100, only need realize the sealing connection with the pump body 100 in the edge of seal membrane, also only need one to seal, and do not need two to seal the processing, the structure is simplified, be favorable to improving the reliability.

Referring to fig. 2 to 5 and fig. 7, in the embodiment of the present invention, the pump body 100 is provided with a pressure contact surface 105 on an outer surface thereof, and the opening of the pumping chamber 101 is provided on the pressure contact surface 105; the pulse water pump further includes a pressing member 400, and the pressing member 400 is used for pressing the pump pressing film 200 against the pressing surface 105. Specifically, the sealing connection between the pump body 100 and the pumping membrane 200 is realized by pressing the pumping membrane 200 to the pressing surface 105 through the pressing piece 400, and the structure is simple to realize, convenient to realize and beneficial to reducing the cost.

Specifically, the pressing member 400 may be directly screwed to the pump body 100, and gradually press the pump pressing film 200 against the pressing surface 105 during screwing; the pressing and sticking part can also be connected with the pump body 100 through a screw, and after the pressing and sticking piece 400 presses and sticks the pump pressing film 200 to the pressing and sticking surface 105, the pressing and sticking part is connected with the pump body 100 through the screw; the pressing piece 400 is also connected with the pump body 100 through a buckle structure, and the pump pressing film 200 is clamped to the pump body 100 in the pressing process of the pressing piece 400.

Referring to fig. 1, in the embodiment of the present invention, a pump body 100 is provided with a pump side anti-slip groove 106 having an annular arrangement path at an edge of a pressure contact surface 105; the pump pressing film 200 has a pump side slip-off prevention ring 210 that is inserted into the pump side slip-off prevention groove 106 and is protruded toward the pump body 100 at the film edge. Based on this, by the cooperation of the pump-side slip-preventing groove 106 and the pump-side slip-preventing ring 210, the separation of the pump pressing film 200 from between the pressing piece 400 and the pump body 100 can be avoided, thereby ensuring the risk between the pump body 100 and the pump pressing film 200.

Further, referring to fig. 4, 5 and 7, in the embodiment of the present invention, the pressing member 400 is disposed along an annular pressing slip-off preventing groove; the pump pressing film 200 is provided with a pressing and retaining ring 220 protruding from the film edge in a direction away from the pump body 100 and inserted into the retaining groove. Based on this, through the cooperation of the pressing and non-releasing groove and the pressing and non-releasing ring 220, the pump pressing film 200 can be further prevented from being separated from between the pressing piece 400 and the pump body 100, thereby further ensuring the risk between the pump body 100 and the pump pressing film 200.

Referring to fig. 2 to 4, in the embodiment of the present invention, the water outlet hole 103 is disposed opposite to the opening of the pumping chamber 101. Therefore, in the process of pumping out water, the opening direction of the water outlet hole 103 is the same as the water flow direction, and the flow speed of the water in the pumping-out process is favorably improved.

Referring to fig. 2 to 4, in the embodiment of the present invention, the cross-sectional shape of the pump chamber 101 is gradually enlarged along the opening direction of the pump chamber 101. This is advantageous in increasing the flow rate of water as it is pumped.

In an embodiment of the present invention, the pumping membrane 200 is provided with a pumping protrusion 230 at a side facing the pumping chamber 101.

Referring to fig. 1 to 3, in the embodiment of the present invention, the driver 300 includes a motor 310, a driving angle tooth 320, a driven angle tooth 330, an eccentric shaft 340 and a pumping pressure connecting rod 350, the driving angle tooth 320 is connected to a rotating shaft of the motor 310 and is driven by the motor 310 to rotate, the driven angle tooth 330 is engaged with the driving angle tooth 320, the eccentric shaft 340 is connected to the driven angle tooth 330, a central axis of the eccentric shaft 340 is parallel to and spaced from a rotating axis of the driven angle tooth 330, the pumping pressure connecting rod 350 is provided with a linking groove 3501 inserted and matched with the eccentric shaft 340, an extending direction of the linking groove 3501 is perpendicular to an opening direction of the pumping pressure cavity 101, a groove width of the linking groove 3501 is equal to an axis diameter of the eccentric shaft 340, and the pumping pressure connecting rod 350 is connected to a middle portion. Based on this, firstly, this simple structure, the realization of being convenient for is favorable to reduce cost, secondly, through initiative angled tooth 320 and driven angled tooth 330, can make the axis of rotation of motor 310 and pumping pressure connecting rod 350 linear motion direction parallel, is favorable to reducing the overall structure size of pulse water pump.

Further, referring to fig. 6 and 7, the pump pressure connecting rod 350 is at least provided with a guiding rib 351 protruding on the periphery thereof; at least one guide way 401 has been seted up to pump body 100, and the extending direction of guide way 401 is on a parallel with the accent of pumping pressure chamber 101 and sets up the direction, and guide way 401 is used for guiding direction muscle 351 to set up the direction along the accent of pumping pressure chamber 101 and moves, and two cell walls of guide way 401 all support with direction muscle 351. So, through the guide of guide way 401 to direction muscle 351, ensured pumping pressure connecting rod 350 rectilinear motion, avoid the shake of pumping pressure connecting rod 350, reduce the friction of pumping pressure connecting rod 350 and the pump body 100 to noise reduction is favorable to promoting user experience.

In the embodiment of the present invention, three guide ribs 351 and three guide grooves 401 are provided.

Referring to fig. 1 to 3, in the embodiment of the present invention, the pump pressure link 350 is detachably connected to the pump pressing film 200, so that, if one of the pump pressing film 200 and the pump pressure link 350 is damaged, only one of the pump pressing film and the pump pressure link can be replaced.

Specifically, the side of the pump pressing film 200 facing away from the pump pressure chamber 101 is provided with an insertion hole having an inverted T-shaped cross section, and the pump pressure connecting rod 350 is provided with an insertion block having a T-shaped cross section and inserted into the insertion hole.

Of course, in other embodiments, the pump connecting rod 350 and the pump membrane 200 may be integrally formed by a two-shot molding process.

Referring to fig. 8, the present invention further provides a dental scaler, which includes a pulse water pump, and the specific structure of the pulse water pump refers to the above embodiments, and since the dental scaler employs all technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also achieved, and are not described herein again.

The present invention is not limited to the above preferred embodiments, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulsed water pump, comprising:

2. The pulse water pump according to claim 1, wherein the pump body is provided with a pressure contact surface on an outer surface thereof, and the opening of the pump chamber is provided in the pressure contact surface;

3. The pulse water pump according to claim 2, wherein the pump body is provided with a pump-side anti-drop groove having an annular arrangement path at an edge of the pressure contact surface;

4. The pulsed water pump of claim 3, wherein the compression member disposition path is an annular compression slip stop groove;

5. A pulse water pump according to claim 1, wherein said water outlet hole is provided opposite to an opening of said pump chamber.

6. A pulse water pump according to claim 1, wherein a cross-sectional shape of said pump chamber is gradually enlarged in a direction in which a port of said pump chamber opens.

7. The pulse water pump according to any one of claims 1 to 6, wherein the driver includes a motor, a driving horn, a driven horn, an eccentric shaft, and a pump pressure connecting rod, the driving horn is connected to a rotation shaft of the motor and is driven by the motor to rotate, the driven horn is engaged with the driving horn, the eccentric shaft is connected to the driven horn, and has a central axis parallel to and spaced from a rotation axis of the driven horn, the pump pressure connecting rod is provided with a linking groove which is engaged with the eccentric shaft, the linking groove extends in a direction perpendicular to an opening direction of the pump pressure chamber, a groove width of the linking groove is equal to an axial diameter of the eccentric shaft, and the pump pressure connecting rod is connected to a middle portion of the pump pressure film.

8. The pulse water pump as claimed in claim 7, wherein said pump pressure connecting rod is provided with at least one guide rib protruding from its peripheral side;

9. The pulsed water pump of claim 7, wherein the pump pressure link is removably connected to the pump pressure membrane.

10. A dental prophylaxis device comprising a pulsed water pump according to any one of claims 1 to 9.