Water pump mechanism and oral irrigator

Abstract

The utility model provides a water pump mechanism. The water pump mechanism comprises a pump shell, a water inlet and outlet assembly connected with the pump shell and a double-elastic valve arranged between the pump shell and the water inlet and outlet assembly. The double-elastic valve comprises a first elastic valve and a second elastic valve, and each of the first elastic valve and the second elastic valve comprises an elastic piece and a valve body; a first water inlet and a first water outlet are formed in the end face of the side, connected with the water inlet and outlet assembly, of the pump shell, and the water inlet and outlet assembly is provided with a second water outlet and a second water inlet. An elastic piece of the first elastic valve is connected to the first water inlet, and a valve body of the first elastic valve abuts against the second water inlet. An elastic piece of the second elastic valve is connected to the second water outlet, and a valve body of the second elastic valve abuts against the first water outlet. Through the arrangement of the double elastic valves, the opening and closing of the double elastic valves are controlled through the pressure change of the pump cavity in the pump shell, so that the water inlet and outlet effect is achieved, and meanwhile the sealing effect can be effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oral irrigator, especially to a water pump mechanism and oral irrigator. BACKGROUND

[0002] The oral irrigator is a kind of appliance that uses the impact force of water column sprayed under certain pressure to clean teeth. Generally, the water pump inside the diaphragm repeatedly deforms to change the pressure inside the pump cavity to realize water absorption and water spraying, and one-way valve is arranged to realize the one-way flow of water, to avoid the insufficient spraying force caused by pressure loss and affect the cleaning effect.

[0003] The existing one-way valve is prone to damage at the slit of valve body after long-term use, which cannot effectively close, thereby affecting the normal use of oral irrigator. UTILITY MODEL CONTENTS

[0004] The utility model provides a water pump mechanism and oral irrigator to solve the technical problem that the existing one-way valve is prone to poor sealing effect.

[0005] The utility model provides a water pump mechanism, the water pump mechanism includes pump shell, water inlet and water outlet assembly connected with pump shell and is installed between pump shell, water inlet and water outlet assembly double elastic valve, the double elastic valve includes first elastic valve and second elastic valve, first elastic valve and second elastic valve all include elastic member and valve body, the end face of one side of pump shell and water inlet and water outlet assembly connection is equipped with first water inlet and first water outlet, water inlet and water outlet assembly is equipped with second water outlet and second water inlet, the elastic member of first elastic valve is connected to first water inlet and valve body is abutted to second water inlet, the elastic member of second elastic valve is connected to second water outlet and valve body is abutted to first water outlet.

[0006] Further, the valve body adopts a ball valve or a plunger valve.

[0007] Further, the valve body is provided with a rubber part away from the side connected with the elastic member.

[0008] Further, the pump shell is connected with a pump membrane end cover away from the end connected with the water inlet and water outlet assembly, and a pump membrane is further fixedly installed between the pump membrane end cover and the pump shell.

[0009] Further, the pump membrane is provided with a fixing part along its circumferential direction, the pump shell is provided with a containing cavity, and the fixing part is fixedly installed in the containing cavity through the pump membrane end cover.

[0010] Further, the pump membrane is further provided with a plunger part away from the pump shell for driving the pump membrane to move.

[0011] Further, the water inlet and water outlet assembly is provided with a water inlet channel communicated with the second water inlet and a water outlet channel communicated with the second water outlet.

[0012] In another aspect, the utility model provides a shower, including casing, water pump mechanism and power assembly, water pump mechanism and power assembly all are equipped with in casing interior.

[0013] Further, the power assembly includes a power member, a driving gear mounted on an output end of the power member, a planar gear connected with the driving gear, a gear rotating shaft connected with the planar gear, and a connecting rod connected with the gear rotating shaft, and the other end of the connecting rod is connected with a plunger part of the water pump mechanism.

[0014] Further, the planar gear is provided with an eccentric boss, and the gear rotating shaft is mounted on the eccentric boss.

[0015] The utility model discloses the beneficial effect is: natural state, the valve body of first elastic valve abuts at second water inlet, and the valve body of second elastic valve abuts at first water outlet, when needing to fill water in pump cavity, through reducing the pressure in pump cavity, at this time, under the action of external pressure, the valve body of first elastic valve compresses elastic member and moves away from second water inlet to first water inlet direction, thereby make external water enter pump cavity in order through second water inlet, first elastic valve and first water inlet, simultaneously, the valve body of second elastic valve is under the action of external pressure and abuts at first water outlet, and it is favorable for the water of external fast entering pump cavity, contrary, when pump cavity sprays water, through increasing the pressure in pump cavity, at this time, under the action of pressure in pump cavity, the valve body of first elastic valve is close to second water inlet, and the valve body of second elastic valve compresses elastic member and moves away from first water outlet to second water outlet direction, thereby make the water in pump cavity spray in order through first water outlet, second elastic valve and second water outlet, the utility model discloses the switch of double elastic valve is controlled by setting double elastic valve, utilizes the pressure change of pump cavity in pump shell, thereby reaches the effect of water inlet and outlet, and also can effectively guarantee sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the perspective drawing of the utility model water pump mechanism.

[0017] Figure 2 It is the explosion drawing of one embodiment of the utility model water pump mechanism.

[0018] Figure 3 It is the section view of one embodiment of the utility model water pump mechanism.

[0019] Figure 4 It is the explosion drawing of another embodiment of the utility model water pump mechanism.

[0020] Figure 5 It is the section view of another embodiment of the utility model water pump mechanism.

[0021] Figure 6It is another embodiment of the utility model water pump mechanism's explosion map.

[0022] Figure 7 It is another embodiment of the utility model water pump mechanism's sectional view.

[0023] Figure 8 It is the explosion map of the utility model oral irrigator. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is in second feature "on", "above" and "upper surface" include that first feature is in second feature directly above and obliquely above, or only indicate that first feature horizontal height is higher than second feature. First feature is in second feature "under", "below" and "under surface" include that first feature is in second feature directly below and obliquely below, or only indicate that first feature horizontal height is less than second feature.

[0029] The utility model is further explained in detail below through specific embodiment combining with drawings.

[0030] Embodiment one:

[0031] As Figures 1-7 Indicated, the utility model provides a kind of water pump mechanism 1, the water pump mechanism 1 includes pump shell 11, and the water inlet and outlet assembly 12 of being connected with pump shell 11 and the double elastic valve being installed between pump shell 11, water inlet and outlet assembly 12;The double elastic valve includes first elastic valve 131 and second elastic valve 132, and first elastic valve 131 and second elastic valve 132 all include elastic member 133 and valve body 134;The end surface of one side of pump shell 11 and water inlet and outlet assembly 12 connection is equipped with first water inlet and first water outlet 111, and water inlet and outlet assembly 12 is equipped with second water outlet and second water inlet 125;The elastic member 133 of first elastic valve 131 is connected to first water inlet and valve body 134 is abutted to second water inlet 125;The elastic member 133 of second elastic valve 132 is connected to second water outlet and valve body 134 is abutted to first water outlet 111. Specifically, the pump shell 11 is equipped with pump cavity 114, and first water outlet 111 and first water inlet are connected with pump cavity respectively.

[0032] In the natural state, the valve body 134 of the first elastic valve 131 abuts against the second water inlet 125, and the valve body 134 of the second elastic valve 132 abuts against the first water outlet 111; when water needs to be introduced into the pump cavity 114, the pressure in the pump cavity 114 is reduced, at this time, under the action of external pressure, the valve body 134 of the first elastic valve 131 moves away from the second water inlet 125 in the direction of the first water inlet (not shown in the figure) by compressing the elastic member 133, so that external water enters the pump cavity 114 through the second water inlet 125, the first elastic valve 131 and the first water inlet in turn, and at the same time, under the action of external pressure, the valve body 134 of the second elastic valve 132 abuts against the first water outlet 111, which is beneficial to the rapid entry of external water into the pump cavity 114; on the contrary, when the pump cavity 114 sprays water outward, the pressure in the pump cavity 114 is increased, at this time, under the action of the pressure in the pump cavity 114, the valve body 134 of the first elastic valve 131 abuts against the second water inlet 125, and the valve body 134 of the second elastic valve 132 moves away from the first water outlet 111 in the direction of the second water outlet (not shown in the figure) by compressing the elastic member 133, so that the water in the pump cavity 114 is sprayed out through the first water outlet 111, the second elastic valve 132 and the second water outlet in turn; the utility model discloses a double elastic valve, which utilizes the pressure change of the pump cavity 114 in the pump shell 11 to control the opening and closing of the double elastic valve, thereby achieving the effect of water inlet and outlet, and effectively guaranteeing the sealing effect.

[0033] Embodiment two:

[0034] The valve body 134 adopts a ball valve or a plunger valve. Specifically, the water inlet and outlet assembly 12 is provided with a water inlet cavity for accommodating the first elastic valve 131 at the second water inlet 125, and is provided with a water outlet cavity for accommodating the second elastic valve 132 at the second water outlet; the valve body 134 of the first elastic valve 131 abuts against the bottom of the water inlet cavity, and the side wall of the water inlet cavity is provided with a water inlet groove; the elastic member 133 of the second elastic valve 132 abuts against the bottom of the water outlet cavity, and the side wall of the water outlet cavity is provided with a water outlet groove which does not communicate with the open end of the water outlet cavity.

[0035] In this embodiment, the water inlet cavity and the water inlet groove are arranged, so that after the valve body 134 of the first elastic valve 131 moves away from the second water inlet 125, external water flows from the water inlet groove into the water inlet cavity, and then enters the pump cavity 114 through the first water inlet; the water outlet groove and the water outlet cavity are arranged, so that after the valve body 134 of the second elastic valve 132 moves away from the first water outlet 111, the water in the pump cavity 114 flows along the water outlet groove to the water outlet cavity, and then is sprayed out through the second water outlet; and the water outlet groove does not communicate with the open end of the water outlet cavity, so that the sealing performance of the valve body 134 when located at the open end of the water outlet cavity can be effectively guaranteed.

[0036] Embodiment three:

[0037] The valve body 134 is provided with a rubber part 135 away from the side connected with the elastic member 133.

[0038] In the embodiment, the rubber part 135 is arranged, and the sealing performance of the elastic valve can be further improved.

[0039] Embodiment four:

[0040] The pump shell 11 is connected with a pump membrane end cover 15 away from the end connected with the water inlet and outlet assembly 12, and the pump membrane 14 is fixedly installed between the pump membrane end cover 15 and the pump shell 11.

[0041] In the embodiment, the pump membrane 14 is arranged, the pressure in the pump cavity 114 can be changed through extrusion or stretching of the pump membrane 14, so that the volume of the pump cavity 114 is adjusted, the water pumping and pumping functions are realized, the water pressure is changed through adjustment of the deformation speed of the pump membrane 14, so that the water inlet and outlet effect is achieved, the pump membrane 14 is effectively fixed on the pump shell 11 through arrangement of the pump membrane end cover 15, and the pump membrane 14 is an elastic membrane.

[0042] Embodiment five:

[0043] The pump membrane 14 is provided with a fixing part 141 along the circumference thereof, the pump shell 11 is provided with a containing cavity, and the fixing part 141 is fixedly installed in the containing cavity through the pump membrane end cover 15.

[0044] Compared with the traditional piston type water pump, the pump membrane 14 is prone to generate a gap due to frequent movement, and the water pump is prone to wear and water leakage, the pump membrane 14 is further fixed through arrangement of the fixing part 141 and the containing cavity in the embodiment, the static fixation of the pump membrane 14 is realized, the gap is avoided, and the sealing performance and service life are effectively provided.

[0045] Embodiment six:

[0046] The pump membrane 14 is further provided with a plunger part 16 for driving the pump membrane 14 to move away from the side of the pump shell 11.

[0047] In the embodiment, the other end of the plunger part 16 is connected with a power assembly, the plunger part 16 is driven to reciprocate through the power assembly, so that the pump membrane 14 is stretched or extruded, and the effect of controlling the pressure of the pump cavity 114 is achieved.

[0048] Embodiment seven:

[0049] The first sealing ring 17 is arranged between the pump shell 11 and the water inlet and outlet assembly 12.

[0050] In the embodiment, the first sealing ring 17 is arranged, and the sealing performance of the water pump can be effectively provided, and water leakage is avoided.

[0051] Embodiment eight:

[0052] The water inlet and outlet assembly 12 is provided with a water inlet channel 124 connected to the second water inlet 125 and a water outlet channel 123 connected to the second water outlet.

[0053] In this embodiment, a water inlet channel 124 is provided for easy connection to a water tank, while a water outlet channel 123 is provided for easy connection to a nozzle, thereby enabling water from the water tank to be sprayed out from the nozzle to achieve the effect of rinsing teeth.

[0054] Example 9:

[0055] like Figures 1-8 As shown, this utility model also provides a dental flosser, including a housing, a water pump mechanism 1, and a power component; the water pump mechanism 1 and the power component are both installed inside the housing. The housing includes an upper housing 31 and a lower housing 32.

[0056] When water needs to be introduced into the pump chamber 114, this invention reduces the pressure inside the pump chamber 114. At this time, under the action of external pressure, the diaphragm 134 of the second elastic valve 132 moves away from the through-hole 133 of the first elastic valve 131 and towards the pump housing 11. This allows external water to sequentially enter the pump chamber 114 through the second inlet 125, the through-hole 133 of the first elastic valve 131, and the first inlet. Simultaneously, the diaphragm 134 of the first elastic valve 131, under the action of external pressure, adheres tightly to the through-hole 133 of the second elastic valve 132, facilitating the rapid entry of external water into the pump chamber 114. Conversely, when the pump chamber 114 sprays water outwards, the pressure is increased by... The pressure inside the pump chamber 114 causes the diaphragm 134 of the second elastic valve 132 to press tightly against the through hole 133 of the first elastic valve 131. The diaphragm 134 of the first elastic valve 131 moves away from the through hole 133 of the second elastic valve 132 toward the water inlet / outlet assembly 12, thereby causing the water in the pump chamber 114 to be sprayed out after passing through the first outlet 111, the through hole 133 of the second elastic valve 132, and the second outlet in sequence. This utility model uses the pressure change of the pump chamber 114 inside the pump housing 11 to control the opening and closing of the double elastic valve 13 by setting a double elastic valve 13, thereby achieving the effect of water inlet and outlet, while also effectively ensuring the sealing effect.

[0057] Example 10:

[0058] The power assembly includes a power component 21, a drive gear 22 mounted on the output end of the power component 21, a planar gear 23 connected to the drive gear 22, a gear shaft 25 connected to the planar gear 23, and a connecting rod 26 connected to the gear shaft 25; the other end of the connecting rod 26 is connected to the plunger portion 16 of the water pump mechanism 1. Specifically, the planar gear 23 is provided with an eccentric boss 24, and the gear shaft 25 is mounted on the eccentric boss 24.

[0059] In this embodiment, the power element 21 drives the driving gear 22 to rotate, the driving gear 22 is engaged with the planar gear 23 to drive the planar gear 23 to rotate, the planar gear 23 drives the gear rotating shaft 25 to move through the eccentric boss 24, the gear rotating shaft 25 drives the plunger part 16 to reciprocate through the connecting rod 26, so as to drive the pump membrane 14 to be extruded or stretched through the plunger part 16.

[0060] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "one example", "some examples", "exemplary", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The above is a further detailed description of the present application in combination with specific embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made.

Claims

1. A water pump mechanism, characterized in that: The water pump mechanism includes a pump casing, an inlet / outlet assembly connected to the pump casing, and a double elastic valve installed between the pump casing and the inlet / outlet assembly. The double elastic valve includes a first elastic valve and a second elastic valve, both of which include an elastic element and a valve body. The end face of the pump casing connected to the inlet / outlet assembly is provided with a first inlet and a first outlet. The inlet / outlet assembly is provided with a second outlet and a second inlet. The elastic element of the first elastic valve is connected to the first inlet, and the valve body abuts against the second inlet. The elastic element of the second elastic valve is connected to the second outlet, and the valve body abuts against the first outlet.

2. The water pump mechanism according to claim 1, characterized in that: The valve body is either a ball valve or a piston valve.

3. The water pump mechanism according to claim 2, characterized in that: The valve body has a rubber section on the side away from the connection with the elastic element.

4. The water pump mechanism according to claim 1, characterized in that: The pump casing is connected to a pump membrane end cap at the end away from the water inlet and outlet components, and a pump membrane is also fixedly installed between the pump membrane end cap and the pump casing.

5. The water pump mechanism according to claim 4, characterized in that: The pump diaphragm is provided with a fixing part along its circumference, and the pump housing is provided with a receiving cavity. The fixing part is fixedly installed in the receiving cavity by the pump diaphragm end cap.

6. The water pump mechanism according to claim 4, characterized in that: The pump diaphragm is also provided with a plunger section on the side away from the pump casing for driving the pump diaphragm movement.

7. The water pump mechanism according to claim 1, characterized in that: The water inlet and outlet assembly is provided with an inlet channel connected to the second water inlet and an outlet channel connected to the second water outlet.

8. A dental flosser, characterized in that: It includes a housing, a water pump mechanism and a power component as described in any one of claims 1-7; the water pump mechanism and the power component are both installed inside the housing.

9. The oral irrigator according to claim 8, characterized in that: The power assembly includes a power component, a drive gear mounted on the output end of the power component, a planar gear connected to the drive gear, a gear shaft connected to the planar gear, and a connecting rod connected to the gear shaft; the other end of the connecting rod is connected to the plunger part of the water pump mechanism.

10. The oral irrigator according to claim 9, characterized in that: The planar gear is provided with an eccentric boss, and the gear shaft is mounted on the eccentric boss.

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