CN114635843A

CN114635843A - Fluid operation assembly and fluid pump

Info

Publication number: CN114635843A
Application number: CN202210279902.8A
Authority: CN
Inventors: 雍乾荣
Original assignee: Xiamen Pumtek Electronics Technology Co ltd
Current assignee: Xiamen Pumtek Electronics Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-06-17

Abstract

The application relates to a fluid operation assembly and a fluid pump, wherein the fluid operation assembly comprises a pump cover, a pump cover and a pump cover, wherein the pump cover is provided with a fluid inlet interface and a fluid outlet interface; the valve seat is connected with the pump cover and is provided with a plurality of groups of fluid inlet holes and fluid outlet holes; the diaphragm seat is connected with the valve seat; a diaphragm disposed on the diaphragm seat, the fluid inlet hole and the fluid outlet hole both opposing an opening of the diaphragm; the fluid inlet hole and the fluid outlet hole are respectively provided with a one-way valve for opening or closing the fluid inlet hole and the fluid outlet hole; and an air inlet passage and an air outlet passage which are mutually independent are formed among the pump cover, the valve seat and the diaphragm. The application also provides a fluid pump, which comprises the fluid operation assembly and a driving assembly. The fluid pump has the effects of improving the fluid operation efficiency, reducing noise and prolonging the service life of the fluid pump.

Description

Fluid operation assembly and fluid pump

Technical Field

The present application relates to the field of fluid delivery, and in particular, to a fluid operation assembly and a fluid pump.

Background

Pumps are commonly used tools in the field of fluid transport and are widely used in many fields. Various pumps, such as air pumps, water pumps, etc., are available on the market.

The existing air pump has the problems that: the diaphragm is easy to wear, the noise is large, the current is large, and the service life is short; the problems exist because the existing technical mode is that the air outlet structure adopts a centralized valve plate, the driving structure adopts a high-solid diaphragm and the diaphragm is enlarged to achieve the required flow rate under the condition that the appearance requirement of the pump is certain; increasing the rotation speed of the motor; the centralized valve plate can generate larger current, and the defects of easy abrasion, high noise, large current, short service life and the like of the diaphragm are caused by the shape of a large high-entity diaphragm and unreasonable rotating speed of the motor.

The reason why the centralized valve plate generates larger current is that the air flows of the air intake and the air exhaust of the centralized valve plate interfere with each other, that is, the air flow resistance is increased, in order to overcome the resistance between the air flows, the power of the motor is increased to maintain the original rotating speed, and then larger current is generated, but the interference between the air flows also generates noise, so that the fluid operation efficiency is low.

In addition, in order to improve the working capacity of the fluid pump, the diaphragm is enlarged on the market so as to increase the fluid capacity, but the large diaphragm causes pressure to the motor, and the larger the diaphragm is, the more easily the wear is generated, so that the problem of short service life is caused.

With respect to the related art in the above, the inventors consider that there is a drawback that the fluid operation efficiency is not high.

Disclosure of Invention

In order to improve the fluid operation efficiency of a fluid pump, the application provides a fluid operation assembly and a fluid pump.

The fluid operation assembly provided by the application adopts the following technical scheme:

a fluid operating assembly, comprising:

the pump cover is provided with a fluid inlet interface and a fluid outlet interface;

the valve seat is connected with the pump cover and is provided with a plurality of groups of fluid inlet holes and fluid outlet holes;

the diaphragm seat is connected with the valve seat;

a diaphragm disposed on the diaphragm seat, the fluid inlet hole and the fluid outlet hole both opposing an opening of the diaphragm;

the fluid inlet hole and the fluid outlet hole are respectively provided with a one-way valve for opening or closing the fluid inlet hole and the fluid outlet hole;

and an air inlet passage and an air outlet passage which are mutually independent are formed among the pump cover, the valve seat and the diaphragm.

By adopting the technical scheme, when the pressure in the diaphragm is smaller than the external pressure, the fluid enters the diaphragm from the fluid inlet interface through the fluid inlet hole and enters the diaphragm through the one-way valve (namely the air inlet passage), and when the pressure in the diaphragm is smaller than the external pressure, the fluid in the diaphragm is discharged through the fluid outlet hole and the one-way valve and then through the fluid outlet interface (namely the air outlet passage); the exhaust passage and the air inlet passage are independent from each other and do not interfere with each other, so that the fluid can be more smoothly operated, the fluid operation efficiency is improved, and in addition, the noise can be reduced.

Optionally, a plurality of flow guide cavities isolated from each other are arranged between the pump cover and the valve seat, and the flow guide cavities are communicated with the fluid inlet hole.

Optionally, the valve seat, the diaphragm seat and the outer wall of the diaphragm form an accommodating chamber, a diversion hole is formed in the bottom wall of the diversion chamber, and the diversion chamber is communicated with the accommodating chamber through the diversion hole.

By adopting the technical scheme, the fluid inlet interface is communicated with one of the flow guide cavities, after the fluid enters the flow guide cavity through the fluid inlet interface, the flow guide cavities are directly isolated from each other, the fluid cannot directly enter other flow guide cavities, one part of the fluid enters the diaphragm from the fluid inlet hole, the other part of the fluid enters the accommodating cavity formed by the valve seat, the diaphragm seat and the outer wall of the diaphragm through the flow guide hole at the bottom of the flow guide cavity, then enters other flow guide cavities from other flow guide holes, and finally enters other diaphragms through the fluid inlet hole; the purpose that sets up like this sets up a plurality of water conservancy diversion chambeies, can once only absorb more fluid, has improved the working capacity of fluid pump, sets up water conservancy diversion chamber relatively independently in addition, is in order to reduce when admitting air, and the check valve takes place to deform and interfere with each other under the air current effect to reach the effect of noise reduction.

Optionally, a plurality of flow dividing columns are arranged at the top of the cavity wall of the flow guide cavity.

Through adopting above-mentioned technical scheme, play and shunt the fluid for the effect of operating efficiency.

Optionally, a discharge cavity is arranged between the pump cover and the valve seat, and the discharge cavity is communicated with the fluid discharge interface.

Through adopting above-mentioned technical scheme, the existence of drainage chamber provides the space for the check valve deformation that sets up on the fluid discharge hole, and the fluid can stay in drainage intracavity for a short time after flowing out from the fluid discharge hole in addition, does benefit to more fluids of disposable discharge like this, and then has accelerated the efficiency of fluid operation.

Optionally, the top of the cavity wall of the drainage cavity is provided with a plurality of limiting columns.

Through adopting above-mentioned technical scheme, in the exhaust process, the check valve takes place deformation under the pressure effect, thereby fluid discharge hole has been opened, if there is not the existence of spacing post this moment, the check valve can direct contact with the groove top in drainage chamber, thereby the fluid can only be followed and circulated by one side that the fluid discharge interface belongs to, and the existence of spacing post, can block the partial deformation of post check valve, make to have the clearance between check valve and the drainage chamber top, the fluid of discharging this moment can be followed fluid discharge hole and discharged along clearance toward fluid discharge interface circulation again, the benefit that sets up like this lies in having increased fluidic direction of motion, and then reach the effect that improves fluid operating efficiency.

Optionally, a baffle is disposed on the top wall of the diversion cavity near the fluid inlet interface, and a gap is formed between the baffle and the side wall of the diversion cavity.

Through adopting above-mentioned technical scheme, in the fluid operation in-process, when fluid gets into rather than the water conservancy diversion intracavity of direct intercommunication from fluid entering interface, most fluid can directly get into the holding cavity through the fluid entrance hole from this water conservancy diversion chamber, it is less to lead to the fluid in other water conservancy diversion intracavity, thereby lead to fluid operating efficiency to hang down, however the existence of baffle, can reduce the fluid and directly flow into the water conservancy diversion intracavity with fluid entering interface direct intercommunication, more fluid under the blockking of baffle, get into other water conservancy diversion intracavity along the water conservancy diversion hole, make the fluid full of in all water conservancy diversion chambeies, and then reach the mesh that promotes fluidic operating efficiency.

Optionally, the fluid inlet interface and the diversion hole are arranged in a staggered manner.

By adopting the technical scheme, it can be known that when the two holes are directly opposite to each other, fluid flowing in from one hole can directly flow out from the other hole; therefore, in order to prevent the fluid entering the interface from directly flowing into the accommodating cavity from the flow guide hole and causing the too little fluid in the flow guide cavity directly communicated with the fluid entering interface, the fluid entering interface and the flow guide hole are arranged in a staggered manner, so that the bottom of the flow guide cavity plays a role in shunting, all the flow guide cavities can be filled with the fluid, and the operating efficiency of the fluid pump is improved.

Optionally, the diaphragm comprises: a cavity portion, a solid portion, and a connecting portion; a sac cavity is arranged in the cavity part and is used for containing fluid; and the bottom of the capsule cavity at one end of the solid part is connected, and the other end of the solid part is connected with the connecting part.

Optionally, the depth of the pocket is greater than the thickness of the solid portion.

Through adopting above-mentioned technical scheme, set the degree of depth of bag chamber to being greater than the thickness of entity portion, promoted the volume of bag chamber on the one hand, can hold more fluid, on the other hand can reduce the volume of entity portion, reduces the load of motor, can produce higher fluid operating efficiency under lower rotational speed, in addition, can also reduce the diaphragm wearing and tearing because high rotational speed brings to life has been improved.

Optionally, the connecting portion is provided with a limiting protrusion.

Through adopting above-mentioned technical scheme, spacing arch is favorable to improving connection stability, can effectively avoid the diaphragm motion in-process and take place to drop.

The second objective of the present application is to provide a fluid pump, which adopts the following calculation scheme:

a fluid pump comprising a fluid operating assembly as described above.

Optionally, the fluid pump further comprises a driving assembly, wherein the driving assembly comprises a motor, a base, an eccentric wheel, a connecting shaft and a crank rod;

the motor is used for providing a driving force,

the base is arranged below the diaphragm seat, and the motor is arranged below the base;

one end of the eccentric wheel is connected with the output shaft of the motor, the other end of the eccentric wheel is provided with an eccentric hole, the curved rod is provided with a central hole, one end of the connecting shaft is connected with the eccentric hole, the other end of the connecting shaft is connected with the central hole, and the curved rod is connected with the diaphragm.

Through adopting above-mentioned technical scheme, the motor drives the eccentric wheel and rotates, because the eccentric orfice sets up for the slope, in addition eccentric action for the center pin of knee lever is circular cone pendulum motion, because the knee lever is connected with the diaphragm, center pin and eccentric orfice swing joint make the diaphragm be extrusion motion from top to bottom.

Optionally, the bottom of the eccentric hole is provided with a ball.

Through adopting above-mentioned technical scheme, the existence of ball changes the sliding friction of connecting axle and eccentric wheel into rolling friction, has reduced frictional force, and then reduces the wearing and tearing of connecting axle and eccentric wheel, finally reaches improvement life's effect.

Optionally, the fluid pump further comprises a buckle, the outer walls of the pump cover, the valve seat, the diaphragm seat and the base are provided with clamping grooves, and the buckle and the clamping grooves are matched to connect the pump cover, the valve seat, the diaphragm seat and the base into a whole.

By adopting the technical scheme, the connection stability of the whole fluid pump is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air inlet passage and the air outlet passage are separated and are independent from each other, so that the interference between air inlet and air outlet fluids can be reduced, the resistance between the fluids is reduced, and the fluids can run more smoothly;

2. the air inlet passage is also divided into the plurality of flow guide cavities which respectively correspond to the diaphragms, so that the working capacity of the fluid pump is improved, the flow guide cavities are separated in the horizontal direction, the condition that different one-way valves are mutually interfered under the action of air pressure is further reduced, and the noise is reduced and the fluid operation efficiency is improved.

Drawings

FIG. 1 is an exploded schematic view of a fluid pump disclosed in an embodiment of the present application;

FIG. 2 is an exploded view (from below) of a drive assembly of a fluid pump according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of a drive assembly of a fluid pump according to the disclosed embodiments; (top view);

FIG. 4 is a schematic diagram of an external structure of a fluid pump according to an embodiment of the present disclosure;

FIG. 5 is an exploded view of a fluid operating assembly of a fluid pump according to the disclosed embodiments;

FIG. 6 is a schematic diagram of a pump cover of a fluid pump according to an embodiment of the disclosure;

FIG. 7 is an enlarged view at A in FIG. 6;

FIG. 8 is an enlarged view at B in FIG. 6;

FIG. 9 is a schematic structural view of a valve seat of a fluid pump according to an embodiment of the present disclosure;

FIG. 10 is a schematic cross-sectional view of a pump cover and a valve seat of a fluid pump according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram of a diaphragm of a fluid pump according to an embodiment of the present disclosure;

fig. 12 is a cross-sectional view of a diaphragm of a fluid pump according to an embodiment of the present disclosure.

Description of the reference numerals:

1. a fluid operating assembly;

11. a pump cover; 111. a fluid entry interface; 112. a fluid outlet interface;

12. a valve seat; 120. a fluid discharge orifice; 121. a fluid inlet port; 122. a first fixing hole; 123. a second fixing hole;

100. a flow guide cavity; 101. a flow guide hole; 102. a drainage cavity; 103. a limiting column; 104. a flow-dividing column; 105. a baffle plate;

13. a one-way valve; 131. an umbrella rod; 132. an umbrella cap; 133. a spherical bulge; 1300. a one-way fluid inflow valve; 1301. a one-way fluid discharge valve;

14. a diaphragm seat; 140. mounting holes;

15. a diaphragm; 151. a cavity portion; 1511. a cavity sidewall; 1512. a cavity bottom wall; 1513. a capsule cavity; 152. a solid portion; 153. a connecting portion; 1530. a limiting bulge;

2. a drive assembly; 21. a motor; 22. a base;

23. an eccentric wheel; 231. an eccentric hole; 232. a ball bearing;

24. a connecting shaft;

25. a curved bar; 250. a central bore; 251. a strut;

3. buckling; 30. a clamping groove.

Detailed Description

The present application is described in further detail below with reference to figures 1 to 12.

The embodiment of the application discloses a fluid pump. A fluid pump comprises a fluid operation assembly 1 and a driving assembly 2, wherein the fluid operation assembly 1 carries out fluid transportation under the driving of the driving assembly 2. The fluid operation assembly 1 of the present application is different from a conventional fluid pump in that it has an intake passage and an exhaust passage independent of each other, and different passages are used at the time of intake or exhaust, so that interference between fluids is reduced when the fluid pump performs suction or discharge of the fluids, thereby improving fluid operation efficiency of the fluid pump.

The fluid operation assembly 1 comprises a pump cover 11, a valve seat 12, a one-way valve 13, a diaphragm 15 and a diaphragm seat 14; the drive assembly 2 comprises a base 22, a crank 25, a connecting shaft 24, an eccentric 23 and a motor 21. In order to conveniently describe the position relationship and the connection relationship among the components of the fluid pump, the directional terms such as up, down, left, right, front, back, bottom, top and the like do not set any limit to the application.

The motor 21 is fixedly arranged below the base 22, an output shaft of the motor 21 is connected with the eccentric wheel 23, specifically, an eccentric hole 231 is arranged at the upper end of the eccentric wheel 23, a central hole 250 is arranged at the lower end of the curved bar 25, a connecting shaft 24 is connected on the eccentric hole 231, one end of the connecting shaft 24 is connected with the eccentric hole 231 of the eccentric wheel 23, and the other end is connected with the central hole 250 of the curved bar 25. In order to reduce frictional loss between the connecting shaft 24 and the eccentric wheel 23, balls 232 are provided at the bottom of the eccentric hole 231. The curved rod 25 has a set of struts 251 (4 struts 251 are shown), the struts 251 being circumferentially distributed about the central bore 250. The diaphragm seat 14 is arranged on the base 22, a group of mounting holes 140 are arranged at the positions of the diaphragm seat 14 corresponding to the support rods 251 of the curved rod 25, the diaphragm 15 is hermetically installed in the mounting holes 140, and the bottom of the diaphragm 15 is correspondingly installed on the support rods 251.

In order to improve the assembly stability of fluid pump and make things convenient for equipment and dismantlement, pump cover 11, disk seat 12, diaphragm seat 14 and base 22 of this application are fixed through buckle 3, and is specific, are provided with draw-in groove 30 on pump cover 11, disk seat 12, diaphragm seat 14 and base 22's lateral wall, and draw-in groove 30 is fixed with the cooperation of buckle 3.

The diaphragm seat 14 is arranged on the base 22, the valve seat 12 is hermetically arranged on the diaphragm seat 14, and an accommodating chamber is formed among the valve seat 12, the diaphragm seat 14 and the base 22; the pump cover 11 is hermetically arranged on the valve seat 12, the pump cover 11 is provided with a fluid outlet port 112 and a fluid inlet port 111, when the pump cover 11 and the valve seat 12 are hermetically covered, a diversion cavity 100 is formed on an outer ring, and an exhaust cavity 102 is formed on an inner ring, in this embodiment, 4 diversion cavities 100 and 4 exhaust cavities 102 are specifically formed. The bottom of the diversion cavity 100 is provided with a diversion hole 101 and a group of fluid inlet holes 121 (in this embodiment, the group of fluid inlet holes 121 is specifically 4).

The check valve 13 includes a stem 131 and a cap 132, the stem 131 of the check fluid inflow valve is inserted into the first fixing hole, and the cap 132 of the check fluid inflow valve can cover the 4 fluid inlet holes 121. In operation, the fluid inlet hole 121 and the fluid outlet hole 120 are opened and closed. In addition, in order to better fix the check valve 13 on the valve seat 12, a spherical protrusion 133 is provided at an end of the umbrella shaft 131 far from the umbrella cap 132.

In the present embodiment, the check valve 13 includes a check fluid inflow valve 1300 and a check fluid discharge valve 1301. Specifically, a first fixing hole 122 is further formed at the bottom of the guide chamber 100, and a one-way fluid inflow valve 1300 is disposed in the first fixing hole 122. Similarly, a set of fluid outlet holes 120 (specifically, 4 fluid inlet holes 121 in this embodiment) is formed in the bottom of the drainage chamber 102, a second fixed hole is further formed in the bottom of the drainage chamber 102, and a one-way fluid outlet valve 1301 is disposed in the second fixed hole.

It should be noted that the 4 diversion cavities 100 are isolated from each other and cannot directly enter other diversion cavities. Specifically, the valve seat 12, the diaphragm seat 14, the outer wall of the diaphragm 15 and the base 22 enclose to form an accommodating cavity, and the diversion cavity 100 is communicated with the accommodating cavity through the diversion hole. Therefore, the flow direction of the incoming fluid is partly: fluid inlet port 111-diversion chamber 100 directly connected to fluid inlet port 111-fluid inlet port 121-one-way fluid inlet valve 1300-diaphragm 15; the other part is as follows: the fluid inlet port 111, the diversion cavity 100 directly connected with the fluid inlet port 111, the diversion hole 101, the accommodating chamber, the other diversion holes 101, the other diversion cavities 100, the fluid inlet hole 121, the one-way fluid inflow valve 1300 and the diaphragm 15. This has the advantage of relatively isolating each baffle chamber 100, which reduces interference between adjacent one-way fluid inflow valves 1300 and reduces noise when fluid is input. And the accommodating chamber is accommodated in one part of the air inlet passage, so that the air inlet is smoother, and the fluid operation efficiency is improved.

A baffle 105 is disposed at the top of the diversion cavity 100 (i.e., the side of the pump cover 11 close to the valve seat 12) and communicated with the fluid inlet port 111, and a gap is formed between the baffle 105 and the side wall of the diversion cavity 100. The advantage of this arrangement is that the fluid in each diversion cavity 100 can be uniformly distributed, and the fluid is prevented from entering the most fluid inlet hole 121 from the nearest diversion cavity 100 from the fluid inlet port 111 and entering the diaphragm 15, so that each diaphragm 15 can operate under the same load, thereby improving the fluid operation efficiency. Secondly, the fluid inlet port 111 and the diversion hole 101 are arranged in a staggered manner, which utilizes the bottom of the diversion cavity 100 to block and divert fluid (if the fluid inlet port 111 and the diversion hole 101 are arranged right opposite to each other, the fluid entering the diversion cavity 100 from the fluid inlet port 111 will flow out from the diversion hole 101 immediately, resulting in too little fluid in the diversion cavity 100 directly communicated with the fluid inlet port 111, causing different working loads of the diaphragm 15, and reducing the operation efficiency).

A diversion column 104 is further disposed at the top of each diversion cavity 100 (specifically, on the side of the pump cover 11 close to the valve seat 12), that is, when the fluid enters the diversion cavity 100, the fluid is divided into a plurality of streams by the diversion column 104 for circulation, so as to improve the fluid operation efficiency.

In addition, the 4 drainage lumens 102 are circumferentially and uniformly distributed around the fluid outlet port 112, and a notch is formed in the drainage lumen 102 near the fluid outlet port 112, so that the fluid is collected at the notch and discharged from the fluid outlet port 112. The discharged fluid flow direction is: diaphragm 15-fluid displacement orifice 120-one-way fluid displacement valve 1301-displacement chamber 102-notch-fluid displacement interface 112.

It is assumed that, during the conventional air release process, the one-way fluid release valve 1301 is deformed by the fluid in the diaphragm 15, and the umbrella cap 132 part thereof may directly abut against the groove top of the discharge chamber 102 (i.e., the side of the pump cover 11 close to the valve seat 12), and then the fluid discharged from the fluid release hole 120 flows out along the side close to the groove opening, resulting in low air release efficiency. Based on this, a set of limiting columns 103 is arranged at the top of the drainage cavity 102, during the exhaust process, the one-way fluid discharge valve 1301 deforms, the umbrella cap 132 part of the one-way fluid discharge valve contacts with the limiting columns 103, a certain pore exists between the umbrella cap 132 and the top of the drainage cavity 102, and at the moment, the fluid from the fluid discharge hole 120 flows out from the pore, so that the flowing direction of the fluid is increased, and the fluid operation efficiency is improved.

The diaphragm 15 used in the present application may be of an existing construction, and the present application further provides an improved diaphragm 15. Specifically, the diaphragm 15 includes a cavity 151, a solid 152, and a connecting portion 153, the solid 152 is connected to the lower portion of the cavity 151, the connecting portion 153 is connected to the lower portion of the solid 152, and the cavity 151, the solid 152, and the connecting portion 153 are integrally formed in this embodiment, so that the overall strength of the diaphragm 15 can be improved. In order to reinforce the connection stability of the connecting portion 153 of the diaphragm 15 and the rod 251 of the curved bar 25, a stopper protrusion 1530 is provided at the end of the connecting portion 153, and the stopper protrusion 1530 can block the connecting portion 153 from being disconnected from the rod 251.

The cavity portion 151 includes a cavity side wall 1511 and a cavity bottom wall 1512, the cavity side wall 1511 and the cavity bottom wall 1512 enclosing to form a pocket 1513. The vertical distance from the top end of the chamber sidewall 1511 to the chamber bottom wall 1512 is a (i.e., the depth of the diaphragm), and the thickness of the solid portion 152 is b (i.e., the vertical distance connecting the chamber portion 151 and the connecting portion 153 in this application), and in this application, a > b is set, so that the capsule chamber 1513 is increased as much as possible, that is, more fluid can be accommodated, and the volume of the solid portion 152 can be reduced (thereby reducing the weight), thereby reducing the load on the motor 21, and thus generating higher fluid operation efficiency at a lower rotational speed, and in addition, the wear of the diaphragm 15 due to a high rotational speed can be reduced, thereby increasing the service life. Specifically, in the present embodiment, a: b is 3:1, and experiments prove that at this ratio, the cavity 151 can be well ensured to contain as much fluid as possible, and the solid portion 152 can provide stable support for the cavity 151 and maintain certain strength to resist abrasion. In other embodiments a: b may also be 2:1,4:1, etc.

One surface of the cavity bottom wall 1512, which is far away from the capsule cavity 1513, is a first connection end surface, and a surface of the solid portion 152, which is connected to the first connection end surface, is a second connection end surface, and the area of the first connection end surface is set to be larger than the area of the second connection end surface (that is, the area of the cavity bottom wall 1512 is larger than the area of the solid portion 152, which is connected to the cavity portion 151). The object is that the contact area between the solid portion 152 and the cavity portion 151 is a second connection end surface under an external force, and the pressure P is increased as S is decreased under a certain force condition according to P = F/S, and thus the deformation of the bladder chamber 1513 is more likely to occur, and the fluid operation efficiency can be improved without an excessively high rotation speed of the motor 21.

The implementation principle of the fluid pump in the embodiment of the application is as follows: the motor 21 is started, the motor 21 drives the eccentric wheel 23 to rotate, the eccentric wheel 23 enables the connecting shaft 24 to rotate together, the connecting shaft 24 drives the curved rod 25 to do up and down arc motion, the diaphragm 15 is connected with the curved rod 25, therefore, the diaphragm 15 deforms along with the movement of the curved rod 25, the volume in the capsule chamber 1513 of the diaphragm 15 changes, when the volume in the capsule chamber 1513 increases, the air pressure in the capsule chamber 1513 is smaller than the external air pressure, the one-way fluid exhaust valve 1301 closes the corresponding fluid exhaust hole 120 under the external pressure, the one-way fluid inflow valve 1300 opens the fluid inlet hole 121 under the action of the external pressure, the fluid enters the diaphragm 15 from the fluid inlet port 111 through the air inlet passage and the fluid inlet hole 121, at the moment, the process of fluid suction is performed, when the volume in the capsule chamber 1513 decreases, the air pressure in the capsule chamber 1513 is larger than the external air pressure, the one-way fluid inflow valve 1300 closes the corresponding fluid inlet hole 121 under the external pressure, the one-way fluid discharge valve 1301 opens the fluid discharge hole 120 by the external pressure, and the fluid is discharged from the diaphragm 15 through the one-way fluid discharge valve 1301 and the fluid discharge hole 120, through the discharge chamber 102 via the fluid discharge port 112, which is a process of discharging the fluid; the above operations are repeated by the rotation of the motor 21, and the conveyance of the fluid is realized. It is worth noting that the independent air inlet passage and the independent air outlet passage are unique to the fluid pump, and the fluid operation efficiency is greatly improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A fluid operating assembly, comprising:

a pump cover (11) provided with a fluid inlet port (111) and a fluid outlet port (112);

the valve seat (12) is connected with the pump cover (11), and the valve seat (12) is provided with a plurality of groups of fluid inlet holes (121) and fluid outlet holes (120);

a diaphragm seat (14) connected to the valve seat (12);

a diaphragm (15) provided on the diaphragm seat (14), the fluid inlet hole (121) and the fluid outlet hole (120) both opposing an opening of the diaphragm (15);

the fluid inlet hole (121) and the fluid outlet hole (120) are respectively provided with a one-way valve (13) for opening or closing the fluid inlet hole (121) and the fluid outlet hole (120);

an air inlet passage and an air outlet passage which are independent of each other are formed among the pump cover (11), the valve seat (12) and the diaphragm (15).

2. The fluid operating assembly according to claim 1, characterized in that a plurality of mutually isolated flow guide cavities (100) are provided between the pump cover (11) and the valve seat (12), the flow guide cavities (100) communicating with a fluid inlet orifice.

3. A fluid operating assembly according to claim 2, wherein the valve seat (12) and the diaphragm seat (14) and the outer wall of the diaphragm (15) form a housing chamber, the bottom wall of the flow guiding cavity (100) is provided with a flow guiding hole (101), and the flow guiding cavity (100) is communicated with the housing chamber through the flow guiding hole (101).

4. A fluid operating assembly according to claim 1, characterized in that a discharge chamber (102) is provided between the pump cap (11) and the valve seat (12), the discharge chamber (102) communicating with the fluid discharge interface (112).

5. The fluid operation assembly according to claim 4, characterized in that the top of the wall of the drainage chamber (102) is provided with a plurality of limiting columns (103).

6. A fluid operating assembly according to claim 1, wherein the diaphragm (15) comprises: a cavity part (151), a solid part (152), and a connecting part (153);

a sac cavity (1513) is arranged in the cavity part (151), and the sac cavity (1513) is used for containing fluid;

one end of the solid part (152) is connected with the bottom of the capsule cavity, and the other end of the solid part is connected with the connecting part (153).

7. The fluid operating assembly of claim 6, wherein the pocket (1513) has a depth greater than a thickness of the solid portion (152).

8. The fluid operating assembly of claim 6, wherein: and a limiting bulge (1530) is arranged on the connecting part (153).

9. A fluid pump, characterized by comprising a fluid-operated assembly (1) according to any one of claims 1-8.

10. Fluid pump according to claim 9, characterised in that it further comprises a drive assembly (2), said drive assembly (2) comprising a motor (21), a base (22), an eccentric (23), a connecting shaft (24), a knee lever (25);

the motor (21) is used for providing driving force,

the base (22) is arranged below the diaphragm seat (14), and the motor (21) is arranged below the base (22);

one end of the eccentric wheel (23) is connected with an output shaft of the motor (21), an eccentric hole (231) is formed in the other end of the eccentric wheel (23), a central hole (250) is formed in the curved rod (25), one end of the connecting shaft (24) is connected with the eccentric hole (231), the other end of the connecting shaft is connected with the central hole (250), and the curved rod (25) is connected with the diaphragm (15);

the fluid pump further comprises a buckle (3), clamping grooves (30) are formed in the outer walls of the pump cover (11), the valve seat (12), the diaphragm seat (14) and the base (22), and the buckle (3) is matched with the clamping grooves (30) to connect the pump cover (11), the valve seat (12), the diaphragm seat (14) and the base (22) into a whole.