CN216788629U

CN216788629U - Water pump

Info

Publication number: CN216788629U
Application number: CN202122894804.9U
Authority: CN
Inventors: 李帅; 陈志峰
Original assignee: Goldenyan Co ltd
Current assignee: Dongguan Geluo Electronic Technology Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-06-21
Anticipated expiration: 2031-11-23

Abstract

The utility model relates to the technical field of liquid variable volume type, in particular to a water pump, which comprises a driving device, a transmission device and a plunger device, wherein the driving device is arranged on the driving device; the transmission device comprises a corrugated disc, the corrugated disc is in transmission connection with the plunger device, and one surface of the corrugated disc in transmission connection with the plunger device is an uneven corrugated surface; the driving device drives the wave-shaped disc to rotate, and then drives the plunger device to rotate for a circle along the wave-shaped surface, and the plunger device is driven to reciprocate at least twice. The water pump provided by the utility model solves the technical problem of low efficiency of the existing water pump.

Description

Water pump

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of liquid variable-volume machinery, in particular to a water pump.

[ background of the utility model ]

Along with the improvement of the living standard of people, the water pump device becomes a common tool in daily life of people. The common water pump usually adopts a motor to drive the water pump to realize water pumping and water discharging of the water pump, and in order to enable the water pump to discharge water uninterruptedly, the mode of a single motor and a single plunger is usually adopted, so that the mode is low in efficiency and the water pumping and discharging process is discontinuous, or the mode of double motors respectively driving double plungers is adopted, so that the water pumping process can be continuous but has the problem of low efficiency.

[ Utility model ] content

The utility model provides a water pump, aiming at solving the technical problem of low efficiency of the existing water pump.

The utility model provides a water pump for solving the technical problem, which is characterized in that: the water pump comprises a driving device, a transmission device and a plunger device;

the transmission device comprises a corrugated disc, the corrugated disc is in transmission connection with the plunger device, and one surface of the corrugated disc in transmission connection with the plunger device is an uneven corrugated surface; the driving device drives the wave-shaped disc to rotate, and then drives the plunger device to rotate for a circle along the wave-shaped surface, and the plunger device is driven to reciprocate at least twice.

Preferably, at least two different-form surfaces of the bulges and/or the pits are formed on the wave-shaped surface at intervals, and the surfaces with the same form are not formed on the same diameter of the wave-shaped disc at the same time.

Preferably, the water pump further comprises a water pumping and draining device, and the plunger device reciprocates to drive the water pumping and draining device to pump water.

Preferably, the water pumping and draining device comprises a water pumping channel, a water draining channel and a one-way valve, the water pumping channel is communicated with the water draining channel, and the one-way valve is respectively arranged in the water pumping channel and the water draining channel.

Preferably, the water pump further includes a housing, the housing defines two movable chambers communicated with the water pumping channel and the water drainage channel, the number of the movable chambers, the water pumping channel and the water drainage channel is two, the plunger device includes two plungers, the two plungers correspond to the two movable chambers one by one, one of the movable chambers is communicated with one of the water pumping channel and the water drainage channel, and the other movable chamber is communicated with the other water drainage channel and the other water drainage channel.

Preferably, any one of the projections of the corrugated disk opposes a dimple, and when one of the plungers abuts the projection of the corrugated disk, the other of the plungers abuts the dimple of the corrugated disk.

Preferably, the two plungers are respectively arranged on two opposite sides of a central axis of the wave-shaped disc, and the central axis of the plunger is parallel to the central axis of the wave-shaped disc;

when the wave-shaped disc rotates, the two plungers move towards the direction far away from the wave-shaped disc and the direction close to the wave-shaped disc respectively so that the plungers release and extrude the corresponding movable cavities.

Preferably, the plunger device further comprises two spiral springs, two fixing rings and two limiting parts, wherein each limiting part is sleeved at one end, close to the wave-shaped disc, of the plunger, each fixing ring is sleeved at one end, far away from the wave-shaped disc, of the plunger and is abutted to the shell, and each spring is sleeved on one plunger and is located between the fixing ring and the limiting part.

Preferably, the driving device is arranged on one side of the corrugated plate far away from the plunger device, and the driving device comprises a power element and a driving gear, and the driving gear is arranged on the power element and is in transmission connection with the transmission device.

Preferably, the transmission device further comprises a speed change gear, and the driving gear is meshed with the speed change gear so as to drive the transmission device to rotate.

Compared with the prior art, the water provided by the utility model has the following advantages:

1. the utility model provides a transmission device adopted by a water pump, wherein a corrugated disc is used for transmission, because the corrugated disc is provided with bulges and pits which are distributed at intervals, the rotating corrugated disc can enable a plunger device which is abutted against the corrugated disc to move from abutting against the bulges to abutting against the pits and then moving from abutting against the bulges at the same position, so that the reciprocating motion of a plunger is formed, and because the bulges and the pits on the corrugated disc can enable the corrugated disc to rotate for one circle, the plunger of the plunger device can be driven to do reciprocating motion for at least two times, so that the pumping and drainage efficiency of the water pump is improved.

2. The number of the bulges and the pits of the corrugated disc of the water pump is at least two, so that the plunger device is driven to respectively pass through the bulges and the pits for at least two times under the condition that the corrugated disc rotates for one circle, the movable cavity is extruded and released for at least two times to reciprocate, the movement times of the plunger caused by the rotation of the corrugated disc for one time are increased, and the water pumping and draining efficiency is further improved.

3. The utility model provides a water pump, which adopts a shell and a sealing piece to define a movable cavity, a water pumping channel is communicated with a water drainage channel through the movable cavity, then water is pumped and drained through the pumping and draining channel through the movement of a plunger in the movable cavity, meanwhile, a one-way valve is arranged to control water flow, when the movable cavity is released, the one-way valve of the water drainage channel is closed, the one-way valve of a water pumping device is opened towards the inner part of the movable cavity, so that water enters the movable cavity, when the movable cavity is extruded, the one-way valve of the water pumping channel is closed, the one-way valve of the water drainage channel is opened towards the outer part of the movable cavity, so that water is drained out of the movable cavity, and the one-way valve ensures that water flows in from the water pumping channel and flows out from the water drainage channel, so that the water pump can smoothly pump drain water.

4. The plunger device of the water pump comprises the two plungers, each plunger corresponds to the different water pumping channel, the different water drainage channel and the different movable cavity, the pressure of the corresponding movable cavity is changed by the independent movement of the two plungers, the interaction of the two plungers is not interfered with each other, the two water pumping channels and the two water drainage channels can perform asynchronous water pumping and drainage work respectively by the reciprocating movement of the plungers, and therefore the water pumping and drainage efficiency of the water pump is effectively improved.

5. The arrangement of the external relation of the bulges and the pits of the corrugated disc on the same diameter line adopted by the water pump ensures that when any plunger is abutted against the bulges, the other plunger is abutted against the pits, so that when the corrugated disc rotates, one plunger is in the motion of releasing the corresponding movable cavity, and the other plunger is in the motion of extruding the corresponding movable cavity, so that one movable cavity can pump water and drain water, and the pumping and draining of the water pump are uninterrupted.

6. According to the water pump provided by the utility model, the design that the central axis of the plunger is parallel to the central axis of the corrugated disc can ensure that the plunger always reciprocates along the same axis, so that the plunger moves more stably and reliably in the movable cavity, and the possibility of friction or collision between the plunger and the shell can be reduced, therefore, the design that the central axis of the plunger is parallel to the central axis of the corrugated disc enables the plunger to better release and extrude the movable cavity to finish water pumping and drainage.

7. The plunger device of the water pump provided by the utility model has the advantages that the spiral spring, the limiting piece and the fixing ring enable the plunger to reciprocate under the driving of the wave-shaped disc, namely, when the plunger slides from a pit of the abutting wave-shaped disc to a bulge of the wave-shaped disc, the spring generates compression deformation, and accordingly outward elastic force is generated for recovering the original state. When the wave form dish rotated, the thrust of spring to the plunger made the unanimous butt of plunger ability in the wave form dish, thereby the plunger can the butt in wave form dish pit department, and then made the plunger release the activity chamber, reduce activity chamber pressure, make the activity chamber draw water through pumping channel, the wave form dish continues to rotate the back, the butt is become the arch by the pit gradually, the spring is compressed again, and then make the plunger extrude the activity chamber, increase activity chamber pressure, make the activity chamber pass through drainage channel and drain water, and then repeat above step, just make the plunger can produce reciprocating motion. Meanwhile, due to the existence of the fixing ring, the plunger penetrates through the fixing ring, so that the plunger can only reciprocate in the direction set by the fixing ring, and the stability of the movement of the plunger is ensured.

8. The driving device of the water pump comprises a power element and a driving gear, wherein the power element drives the driving gear to rotate so as to drive the transmission device to rotate. Furthermore, the water pump only needs one power element capable of driving the driving gear to rotate, one power element drives the driving gear, the driving gear drives the wave-shaped disc to rotate, so that the wave-shaped disc drives the plunger device to reciprocate, the reciprocating motion of the plungers changes the pressure of the movable cavities, and a plurality of pumping and drainage channels operate simultaneously,

the water pump can pump and drain water in multiple channels only by one power element.

9. The water pump provided by the utility model uses the speed change gear, the speed change gear is meshed with the driving gear to form speed change, when the rotating speed of the power element is insufficient, the rotating speed of the corrugated disc can be increased by reducing the number of teeth of the speed change gear, and when the rotating speed of the power element is too high, the rotating speed of the corrugated disc can be reduced by increasing the number of teeth of the speed change gear, so that the rotating speed of the corrugated disc is ensured to be in the adaptive range, and the water pump can pump and drain water smoothly.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of a water pump according to a first embodiment of the present invention.

Fig. 2 is an exploded view of a water pump according to a first embodiment of the present invention.

Fig. 3 is a first cross-sectional view of a water pump according to a first embodiment of the present invention.

Fig. 4 is a partial schematic view of a water pump according to a first embodiment of the present invention.

Fig. 5 is a second sectional view of the water pump according to the first embodiment of the present invention.

Fig. 6 is a perspective view of a wave plate of a water pump according to a first embodiment of the present invention.

Description of the figures:

1. a water pump;

11. a drive device; 12. a transmission device; 13. a plunger device; 14. a water pumping and draining device; 15. a housing; 16. a seal member;

111. a power element; 112. a drive gear; 121. a wave shaped disc; 122. a speed change gear; 131. a plunger; 132. a spring; 133. a fixing ring; 134. a limiting member; 141. a water pumping channel; 142. a drainage channel; 143. a one-way valve; 151. a movable cavity;

1211. a pit; 1212. and (4) protruding.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in 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 utility model and are not intended to limit the utility model.

It is to be noted that the terms "first" and "second" and the like in the description and the claims of the present invention are used for distinguishing different objects, and are not used for describing a specific order.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1 to 3, a first embodiment of the present invention provides a water pump 1, in which the water pump 1 includes a driving device 11, a transmission device 12, a plunger device 13, a drainage device 14, a hollow housing 15 and a sealing member 16.

Further, the transmission device 12, the plunger device 13 and the sealing member 16 are all disposed inside the housing 15, the housing 15 and the sealing member 16 jointly define a movable cavity 151, and the water pumping and draining device 14 is connected with the housing 15, further, the water pumping and draining device 14 is communicated with the movable cavity 151, and a part of the plunger device 13 is also disposed in the movable cavity 151.

It can be understood that the driving device 11 is in transmission connection with the transmission device 12 and drives the transmission device 12 to rotate, the transmission device 12 is connected with the plunger device 13, the driving device 11 provides power to drive the transmission device 12 to rotate, the transmission device 12 rotates to drive the plunger device 13 to do reciprocating motion, the plunger device 13 reciprocates to release and extrude the movable cavity 151 so as to change the pressure in the movable cavity 151, and then the pumping and draining device 14 is driven to pump water and drain water.

As a variant, it is understood that the active chamber 151 may be formed by a single housing, while the transmission means 12, the plunger means 13 and the pump drainage means 14 may be provided by separate housings, all of which are finally connected to form a single body or all of which are fixed to form a single body by the housing 15.

Further, referring to fig. 2 and 3, the driving device 11 is disposed on a side of the transmission device 12 away from the plunger device 13. The driving device 11 includes a power element 111 and a driving gear 112, and the driving gear 112 is disposed on the power element 111 and is in transmission connection with the transmission device 12. The power element 111 provides power to rotate the driving gear 112, and the driving gear 112 rotates to rotate the transmission 12. Alternatively, the number of the power elements 111 may be one or more. Specifically, in the present embodiment, the number of the power elements 111 is one.

Alternatively, the power element 111 of the present invention may be an electric motor, a pneumatic motor, or an internal combustion engine, which can provide power to drive the driving gear 112 to rotate.

Further, referring to fig. 2 and 6, the transmission 12 of the water pump 1 includes a wave plate 121 and a speed change gear 122. The driving device 11 is arranged on one side of the wave-shaped disc 121 far away from the plunger device, the speed change gear 122 is arranged on one side of the wave-shaped disc 121 close to the driving device 11, and one side of the wave-shaped disc 121 far away from the driving device 11 is in transmission connection with one end of the plunger device 13. The transmission gear 122 is engaged with the driving gear 112 of the driving device 11, the driving gear 112 rotates to drive the transmission gear 122 to rotate, and the transmission gear 122 drives the corrugated plate 121 to rotate, and as the corrugated plate 121 rotates, the plunger device 13 slides along the corrugated surface, that is, the corrugated plate 121 rotates to drive the plunger device 13 to reciprocate along the movable cavity 151.

It is understood that the wave shaped disc 121 is provided with at least two protrusions 1212 and depressions 1211, and when the wave shaped disc 121 rotates once, each plunger device 13 passes through at least two depressions 1211 and two protrusions 1212, i.e. the plunger device 13 performs at least two reciprocating movements.

It can be understood that the corrugated plate 121 is circular, a surface of the corrugated plate 121 away from the driving device 11 is a corrugated surface, and the corrugated surface is formed with uniformly spaced pits 1211 and protrusions 1212, wherein the depth of the pits 1211 is uniform and the height of the protrusions 1212 is uniform. And the pits 1211 and the lands 1212 are uniformly spaced on the wave shaped disc 121. All the pits 1211 and lands 1212 are on a circumference of the same center as the wave disk 121. Meanwhile, any diameter of the wave shaped disc 121 corresponds to a pit 1211, and the diameter necessarily corresponds to a protrusion 1212. I.e. any pit 1211 of the wave shaped disc 121 is opposite to a protrusion 1212.

Further, the number of protrusions 1212 and depressions 1211 are each at least two. Specifically, in the embodiment of the present invention, the number of the protrusions 1212 and the number of the depressions 1211 are 3.

Alternatively, the protrusions 1212 and the recesses 1211 may have a hemispherical shape, an arc shape, or the like, which may form rounded protrusions 1212 and recesses 1211.

It will be appreciated that only two protrusions 1212 or only two pits 1211 may be provided on the wave shaped face of the wave shaped disc 121, as long as it is ensured that no two protrusions 1212 or two pits 1211 are present at the same time on either diameter of the wave shaped disc 121. That is, the same diameter may be the combination of the protrusion 1212 and the indentation 1211, or the combination of the protrusion 1212 and the flat surface, or the combination of the flat surface and the indentation 1211, which all achieve the effect that the plunger device 13 can reciprocate at least twice along one rotation of the wavy surface.

Further, referring to fig. 3 and 4, the plunger device 13 of the water pump 1 includes two plungers 131, two spiral springs 132, two fixing rings 133, and two stoppers 134, and the number of the movable cavities 151 is also two, and the two plungers 131 correspond to the two movable cavities 151 one by one. I.e., the wave shaped disc 121, rotates one revolution, each plunger 131 slides over 3 dimples 1211 and 3 protrusions 1212, i.e., the plunger 131 makes 3 reciprocating movements.

Further, the plunger 131 is cylindrical, each stopper 134 is sleeved on one end of the plunger 131 close to the corrugated plate 121, each fixing ring 133 is sleeved on one end of the plunger 131 far from the corrugated plate 121 and abuts against the housing 15, the fixing rings 133 are limited by the housing 15, the two plungers 131 respectively pass through the two fixing rings 133, and the part passing through the fixing rings 133 is arranged in the movable cavity 151. Each spring 132 is sleeved on one plunger 131 and located between a fixing ring 133 and a limiting member 134 on the same plunger 131.

Specifically, the spring 132 can be compressed and extended only between the fixing ring 133 and the stopper 134 by the fixing of the fixing ring 133 and the stopper 134, and cannot be separated from the plunger 131. Since the fixing ring 133 performs the limiting process through the housing 15, the compression and extension of the spring 132 can only be completed by moving the limiting member 134, and since the limiting member 134 is disposed on the plunger 131, the spring 132 pushes the limiting member 134 to drive the plunger 131 to move. The plunger 131 is adjusted by the stopper 134 until the wave surface of the wave disk 121 abuts, the spring 132 is in a compressed state when the plunger 131 abuts the bump 1212 of the wave disk 121, and the spring 132 is still in a compressed state when the plunger 131 abuts the wave disk pit 1211, but corresponds to a relatively extended state compared to the compressed state of the abutment bump 1212. It can be understood that the spring 132 is always in a compressed state no matter what position the plunger 131 is, the stopper 134 makes the plunger 131 and the wave plate 121 always in an abutting state by the elastic force, and only when the plunger 131 is located at different positions, the compressed state of the spring 132 is different.

Specifically, when the driving device 11 drives the driven device to rotate, that is, the wave disc 121 rotates to make the plunger 131 abut against the protrusion 1212, when the protrusion 1212 rotates away, that is, when the plunger 131 does not abut against the protrusion 1212, the spring 132 makes the plunger 131 still abut against other positions of the wave disc 121 through the elastic force, until the plunger 131 abuts against the recess 1211, the wave disc 121 continues to rotate, so that the protrusion 1212 gradually abuts against the plunger 131, and then repeating, that is, the spring 132 makes the plunger 131 still abut against other positions of the wave disc 121 through the elastic force, until the plunger 131 abuts against the recess 1211, so that the plunger 131 makes reciprocating motion on the same central axis to complete releasing and squeezing of the movable cavity 151, thereby achieving the purpose of pumping water.

It will be appreciated that when the power element 111 drives the drive gear 112 to rotate, the drive gear 112 rotates the wave plate 121 via the speed change gear 122. Due to the spacing of the protrusions 1212 and the dimples 1211 and the number of the protrusions 1212 and the dimples 1211 on one wave plate 121 being at least two, the plunger 131 of the plunger device 13 can abut against the protrusions 1212 and the dimples 1211, respectively, at least twice when the wave plate 121 rotates one turn, i.e., the plunger device 13 makes at least two reciprocating movements.

As a variation, it can be understood that the undulated surface of the undulated disk 121 is not provided with the dimples 1211, but is provided with a plurality of protrusions 1212, the protrusions 1212 are sequentially arranged at certain intervals on the same circumference with the center of circle of the undulated disk 121 as the center of circle and have one end as the protrusion 1212 and the other end as a flat surface on the same diameter of the undulated disk, that is, when the plunger 131 abuts against the protrusion 1212, the plunger 131 presses the movable chamber 151, and when the plunger 131 is away from the protrusion 1212 and abuts against the flat surface, the plunger 131 releases the movable chamber 151, thereby completing water drainage and pumping. Or, the wave surface of the wave disk is not provided with the projection 1212, but is provided with a plurality of pits 1211, the pits 1211 are also orderly arranged on the same circumference by taking the center of the wave disk 121 as the center of a circle and at certain intervals, one end of the wave disk is the pit 1211, and the other end of the wave disk is a plane, namely, when the plunger 131 is abutted against the pit 1211, the plunger 131 releases the movable cavity 151, and when the plunger 131 is abutted against the plane from the pit 1211, the plunger 131 extrudes the movable cavity 151, thereby completing water pumping and drainage.

As another variation, it can be understood that the wave disk 121 is provided with two different heights of protrusions 1212 distributed at intervals, the protrusions 1212 with different heights are orderly arranged on the same circumference at certain intervals with the center of circle of the wave disk 121 as the center of circle, and one end of the wave disk is the protrusion 1212 with higher height and the other end is the protrusion 1212 with lower height on the same diameter, that is, when the plunger 131 abuts against the protrusion 1212 with higher height, the plunger 131 presses the movable cavity 151, and when the plunger 131 leaves the protrusion 1212 with higher height to abut against the protrusion 1211 with lower height, the plunger 131 releases the movable cavity 151, thereby completing water drainage and pumping. Or, the wave-shaped disc 121 is provided with two pits 1211 with different depths distributed at intervals, the pits 1211 with different depths are orderly arranged on the same circumference at certain intervals by taking the center of the wave-shaped disc 121 as the center of a circle, one end of the pit 1211 with the deeper depth on the same diameter of the wave-shaped disc is the pit 1211 with the shallower depth, namely, when the plunger 131 is abutted with the pit 1211 with the deeper depth, the plunger 131 releases the movable cavity 151, and when the plunger 131 is separated from the pit 1211 with the deeper depth and is abutted with the pit 1211 with the shallower depth, the plunger 131 extrudes the movable cavity 151, thereby completing water pumping and water drainage.

It is understood that the two plungers 131 are respectively disposed on two opposite sides of the central axis of the corrugated plate 121, and the central axes of the two plungers 131 are parallel to the central axis of the corrugated plate 121. When the wave disk 121 rotates, the two plungers 131 move away from the wave disk 121 and close to the wave disk 121, respectively, so that the plungers 131 release and press the corresponding movable chambers 151.

Specifically, the two plungers 131 are respectively disposed on the same circumference and on the same diameter line of the pit 1211 and the pit 1211. That is, when any one of the plungers 131 abuts against the depressions 1211 of the wave shaped plate 121, the other plunger 131 abuts against the depressions 1211 of the wave shaped plate 121. This arrangement ensures that when one plunger 131 is releasing one active chamber 151, the other plunger 131 is squeezing the active chamber 151, i.e. one channel is draining while the other channel is pumping water to achieve uninterrupted pumping and draining.

Alternatively, the spring 132 of the present invention may be another elastic member having elastic force, as long as the elastic member can achieve the effect of limiting and resetting the plunger 131.

Optionally, the plunger 131 device of the present invention may be three plungers 131 or a plurality of plungers 131, and when there are three or a plurality of plungers 131, they correspond to three or a plurality of movable chambers 151, and also correspond to three or a plurality of drainage channels 142, that is, the plungers 131, the movable chambers 151, and the drainage device 14 correspond one to one.

Further, referring to fig. 3 to 5, the pumping and draining device 14 of the water pump 1 includes two pumping passages 141, two draining passages 142 and four check valves 143.

Further, at least one check valve 143 is disposed in each of the pumping passages 141 and the draining passages 142. The pumping channel 141 and the drainage channel 142 are communicated through the movable chambers 151, that is, one of the movable chambers 151 is communicated with one of the pumping channel 141 and the drainage channel 142, and the other movable chamber 151 is communicated with the other pumping channel 141 and the other drainage channel 142. The check valve 143 provided in the pumping passage 141 is a check valve 143 openable to the movable chamber 151, that is, when the check valve 143 in the pumping passage 141 is opened, water can flow into the movable chamber 151 only through the pumping passage 141. The one-way valve 143 provided to the drain passage 142 is the one-way valve 143 openable to the outside of the movable chamber 151, that is, when the one-way valve 143 in the drain passage 142 is opened, water can be discharged out of the movable chamber 151 only through the drain passage 142.

Specifically, when the water pump 1 is not operated, the check valve 143 is closed so that the pressure of the movable chamber 151 is stabilized. When the water pump 1 is operated, the water inlet of the pumping channel 141 is placed in the water. When the plunger 131 abuts the depression 1211 on the wave disc 121, the plunger 131 releases the active chamber 151, so that the pressure of the movable chamber 151 is reduced and the pressure of the movable chamber 151 is lower than the external pressure, the check valve 143 of the pumping passage 141 is opened to the inside of the movable chamber 151, water is introduced into the movable chamber 151, then the check valve 143 of the pumping passage 141 is closed in conformity with the internal pressure of the movable chamber 151 and the external pressure, thereafter, the wave disc 121 continues to rotate so that, as the plunger 131 abuts the lobes 1212 of the wave disc 121, the plunger 131 presses against the active cavity 151, so that the internal pressure of the movable chamber 151 is greater than the external pressure, the check valve 143 of the drain passage 142 is opened to the outside of the movable chamber 151, the water of the movable chamber 151 is drained, when the movable chamber 151 pressure coincides with the external pressure, the check valve 143 of the drain passage 142 is closed, and then the plunger 131 releases the movable chamber 151 to repeat the above-described action while the plunger 131 abuts against the dimples 1211 of the wave plate 121. In the continuous rotation of the wave-shaped disc 121, the plunger 131 is driven to continuously reciprocate to alternately release and squeeze the movable chamber 151, so as to change the pressure of the movable chamber 151, thereby controlling the check valves 143 of the pumping channel 141 and the drainage channel 142 to realize pumping and drainage operations.

It is understood that the first embodiment of the present invention has two water pumping passages 141 and two water discharging passages 142, one water pumping passage 141 and one water discharging passage 142 are correspondingly communicated in one movable chamber 151, and the other water pumping passage 141 and the other water discharging passage 142 are communicated in the other movable chamber 151.

Specifically, the two plungers 131 abut the corrugated disk 121 at the time of abutment of the corrugated disk 121, one plunger 131 abuts the corrugated disk 121 dimples 1211, and the other plunger 131 abuts the corrugated disk 121 bumps 1212. Due to the corresponding abutting position relationship of the two plungers 131 and the equidistant spacing of the protrusions 1212 and the depressions 1211 on the corrugated plate 121, when the corrugated plate 121 rotates, the two plungers 131 move in opposite directions, that is, when one plunger 131 performs a pressing motion on the movable chamber 151, the other plunger 131 performs a releasing motion on the movable chamber 151, so that when one pumping channel 141 pumps water, the drainage channel 142 communicated with the other pumping channel 141 discharges water, and the two movable chambers 151 are respectively pressed and released by the plungers 131, so that the pumping and drainage channels 142 respectively corresponding to the two movable chambers 151 perform alternate pumping and drainage operations, thereby ensuring uninterrupted pumping and drainage motions of the water pump 1.

In summary, in the water pump 1 according to the first embodiment of the present invention, the power element 111 drives the driving gear 112 to rotate, the driving gear 112 is engaged with the speed-changing gear 122 of the transmission device 12, so as to drive the speed-changing gear 122 to rotate, and further the speed-changing gear 122 drives the corrugated plate 121 to rotate, and the rotation of the corrugated plate drives the two plungers 131 to perform reciprocating motions in different directions, so as to release and extrude the two movable chambers 151 asynchronously, thereby performing uninterrupted water pumping and draining through the water pumping and draining device 14.

Compared with the prior art, the water pump provided by the utility model has the following advantages:

1. the transmission device adopted by the water pump provided by the utility model uses the wave-shaped disc for transmission, and due to the existence of the bulges and the pits which are distributed at intervals on the wave-shaped disc, the plunger device which is abutted to the wave-shaped disc can move from abutting against the bulges to abutting against the pits and then moving from abutting against the bulges at the same position by rotating the wave-shaped disc, so that the reciprocating motion of the plunger is formed, and due to the existence of the bulges and the pits on the wave-shaped disc, the wave-shaped disc can rotate for one circle to drive the plunger of the plunger device to do reciprocating motion for at least two times, so that the pumping and draining efficiency of the water pump is increased.

3. The water pump provided by the utility model adopts the shell and the sealing piece to define the movable cavity, the water pumping channel is communicated with the water drainage channel through the movable cavity, then the water is pumped and drained through the pumping and draining channel through the movement of the plunger in the movable cavity, meanwhile, the water flow is controlled by the arranged one-way valve, when the movable cavity is released, the one-way valve of the water drainage channel is closed, the one-way valve of the water pumping device is opened towards the inner part of the movable cavity, so that water enters the movable cavity, when the movable cavity is extruded, the one-way valve of the water pumping channel is closed, the one-way valve of the water drainage channel is opened towards the outer part of the movable cavity, so that the water is drained out of the movable cavity, and the one-way valve ensures that the water flows into and flows out of the water drainage channel from the water pumping channel, so that the water pump can smoothly pump and drain the water.

8. The utility model provides a driving device of a water pump, which comprises a power element and a driving gear, wherein the power element drives the driving gear to rotate so as to drive a transmission device to rotate. Furthermore, the water pump only needs one power element capable of driving the driving gear to rotate, one power element drives the driving gear, the driving gear drives the wave-shaped disc to rotate, so that the wave-shaped disc drives the plunger device to reciprocate, the reciprocating motion of the plungers changes the pressure of the movable cavities, and a plurality of pumping and drainage channels operate simultaneously,

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A water pump, characterized by: the water pump comprises a driving device, a transmission device and a plunger device;

2. The water pump of claim 1, wherein: at least two different-form surfaces of bulges and/or pits are formed on the wave-shaped surface at intervals, and the surfaces with the same form are not formed on the same diameter of the wave-shaped disc at the same time.

3. The water pump of claim 2, wherein: the water pump also comprises a water pumping and draining device, and the plunger device reciprocates to drive the water pumping and draining device to pump and drain water.

4. The water pump of claim 3, wherein: the water pumping and draining device comprises a water pumping channel, a water draining channel and a one-way valve, the water pumping channel is communicated with the water draining channel, and the one-way valve is respectively arranged in the water pumping channel and the water draining channel.

5. The water pump of claim 4, wherein: the water pump further comprises a shell, the shell defines a movable cavity communicated with the water pumping channel and the water drainage channel, the number of the movable cavity, the water pumping channel and the water drainage channel is two, the plunger device comprises two plungers, the two plungers are in one-to-one correspondence with the two movable cavities, one of the movable cavities is communicated with one water pumping channel and one water drainage channel, and the other movable cavity is communicated with the other water drainage channel and the other water drainage channel.

6. The water pump of claim 5, wherein: any one of the protrusions of the wave-shaped disc is opposed to one of the depressions, and when one of the plungers is brought into abutment with the protrusion of the wave-shaped disc, the other plunger is brought into abutment with the depression of the wave-shaped disc.

7. The water pump of claim 6, wherein: the two plungers are respectively arranged on two opposite sides of the central axis of the corrugated disc, and the central axis of the plungers is parallel to the central axis of the corrugated disc;

8. The water pump of claim 7, wherein: the plunger device further comprises two spiral springs, two fixing rings and two limiting parts, wherein each limiting part is sleeved at one end, close to the wave-shaped disc, of the plunger, each fixing ring is sleeved at one end, far away from the wave-shaped disc, of the plunger and abutted to the shell, and each spring sleeve is arranged on one plunger and located between the fixing ring and the limiting part.

9. The water pump of claim 8, wherein: the driving device is arranged on one side, away from the plunger device, of the corrugated disc and comprises a power element and a driving gear, and the driving gear is arranged on the power element and is in transmission connection with the transmission device.

10. The water pump of claim 9, wherein: the transmission device further comprises a speed change gear, and the driving gear is meshed with the speed change gear so as to drive the transmission device to rotate.