CN216198922U

CN216198922U - Valve element assembly, booster pump and water purifier

Info

Publication number: CN216198922U
Application number: CN202122718278.0U
Authority: CN
Inventors: 李伟; 刘建斌; 陈茂伟; 唐伟鹏; 汪耀东
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-04-05
Anticipated expiration: 2031-11-08

Abstract

The utility model provides a valve core assembly, a booster pump and a water purifier. The valve core assembly comprises an eccentric wheel, can rotate by taking a first axis as an axis and comprises an axis body, and a first included angle is formed between the axis of the axis body and the first axis; the bracket is sleeved on the shaft body; a diaphragm connected to the support; the surface of the support, which is connected with the diaphragm, is a contact surface, and the contact surface extends towards the direction away from the diaphragm in the radial direction from the outside to the inside of the shaft body. The contact surface is arranged to be higher outside and lower inside, so that the contact surface can compensate the eccentric angle of the bracket which eccentrically rotates to a certain extent, namely the first included angle. Therefore, the radial load borne by the support in the reciprocating motion process is reduced, so that the vibration generated by the valve core assembly in the working process is reduced, and the technical problems of high vibration noise and poor reliability are solved.

Description

Valve element assembly, booster pump and water purifier

Technical Field

The utility model relates to the technical field of medium pumping, in particular to a valve core assembly, a booster pump and a water purifier.

Background

As the pumping water flow demand of a liquid pumping device increases by users, the increase of a core component booster pump in the pumping device becomes inevitable.

In the related art, as the flow rate and the output pressure of the booster pump increase, the load of the booster pump increases, which inevitably causes the excitation of the booster pump to become large, and the vibration transmitted to the application product also increases correspondingly, and finally causes the application product to generate larger noise in the use process, thereby bringing bad experience to users.

Therefore, how to design a valve core assembly that can overcome the above technical defects becomes a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art.

To this end, a first aspect of the utility model proposes a valve core assembly.

The second aspect of the utility model provides a booster pump.

A third aspect of the present invention provides a water purifier.

In view of the above, a first aspect of the present invention provides a valve core assembly, which includes an eccentric wheel, which can rotate about a first axis, and includes a shaft body, wherein a first included angle exists between an axis of the shaft body and the first axis; the bracket is sleeved on the shaft body; a diaphragm connected to the support; the surface of the support, which is connected with the diaphragm, is a contact surface, and the contact surface extends towards the direction away from the diaphragm in the radial direction from the outside to the inside of the shaft body.

The case subassembly that this application provided can be applied to in the booster pump, and the motion of case subassembly turns into the volume change of cavity among the booster pump in the course of the work to liquid can be impressed the cavity by the negative pressure when the cavity volume increases, otherwise when the cavity volume shrinks, liquid is discharged the cavity. The valve core assembly comprises an eccentric wheel, a support and a diaphragm, wherein the support is a frame structure in the valve core assembly and is used for positioning and supporting other working structures on the valve core assembly. The eccentric wheel is a transmission structure between the bracket and the driving piece, and the bracket is sleeved on the shaft body of the eccentric wheel. During working, the eccentric wheel rotates around the first axis, and a first included angle exists between the axis of the shaft body and the first axis, so that the support sleeved on the shaft body can rotate around the first axis in an eccentric mode. The diaphragm is arranged on the bracket and connected with the bracket. The diaphragm is made of elastic materials and can deform when being pushed and pulled so as to change the volume of the cavity in the booster pump, for example, when the diaphragm is stretched outwards, the volume of the cavity is increased immediately, otherwise, when the diaphragm is restored or pushed inwards, the volume of the cavity is decreased immediately, and therefore liquid is extracted and pumped by pushing and pulling. Wherein at least part of the bracket is annular, and the axis of the part of the annular bracket structure is the axis of the bracket. In the working process, the support rotates around a first axis preset in the valve core assembly under the driving of the eccentric wheel, and an included angle exists between the first axis and the axis of the support so as to form the eccentric rotation of the support. In the eccentric rotation process, the outer surface of the support can reciprocate in the direction of the first axis, so that part of the diaphragm connected with the support is driven to reciprocate in the direction of the first axis. Because the diaphragm has stretchability, the shape of the diaphragm is regularly changed in the process that part of the diaphragm is pushed and pulled by the support, so that liquid is extracted and pushed through the deformed diaphragm. The larger the angle of the first included angle is, the stronger the liquid pumping capacity of the valve core assembly is, the larger the pumping flow rate is reflected on the booster pump, but the larger the dynamic load on the valve core assembly which moves correspondingly in the first axis direction is, and the dynamic load mainly is a radial load due to the eccentric rotation of the bracket, wherein the radial direction is a radial direction perpendicular to the first axis. The radial load to which the stent is subjected at the end points on the motion path is the greatest during one cycle of reciprocation of the stent.

In the related art, when a valve core in a booster pump performs liquid pumping through eccentric rotation, the eccentrically-rotated valve core may vibrate due to a radial load. This tendency to vibrate can then create noise that affects the user experience. Wherein, the bigger and the bigger pumping pressure of the pumping flow of booster pump is, then above-mentioned radial load is bigger to the booster pump of high power high flow rate can produce comparatively obvious vibration at the course of the work, and too big vibration can reduce the life of case and booster pump, and this vibration trend if transmits the application product to the booster pump in addition, then can produce great noise, destroys user's use experience.

In this regard, the present application improves upon the shape of the stent. Specifically, the diaphragm is positioned at the front end of the support, and the surface of the support, which is in contact with the diaphragm, is a contact surface, and the contact surface can be a single annular surface or a plurality of flat surfaces. Wherein, in the radial direction of axis body from outside to inside, the contact surface extends towards the direction of keeping away from the diaphragm. The radial direction is a radial direction of the shaft body and the annular holder, and the radial direction is a direction extending from the outer periphery of the holder to the axis of the holder from the outside to the inside, so that a contact surface having a high outer side and a low inner side is formed in the radial direction from the outside to the inside. The contact surface is arranged to be higher outside and lower inside, so that the contact surface can compensate the eccentric angle of the bracket which eccentrically rotates to a certain extent, namely the first included angle. Therefore, the radial load borne by the support in the reciprocating motion process is reduced, so that the vibration generated by the valve core assembly in the working process is reduced, and the technical problems of high vibration noise and poor reliability are solved. And then realize optimizing case subassembly structure, lift case subassembly job stabilization nature and structural reliability, reduce product work noise, extension product life promotes the technical effect that the user used the experience.

In addition, the valve core assembly provided by the utility model can also have the following additional technical characteristics:

in the technical scheme, the contact surface is a plane, and the plane vertical to the axis of the bracket is a datum plane; a second included angle exists between the reference surface and the contact surface.

In this technical solution, further explanation is made on the contact surface. Specifically, the contact surface is a plane, and the height of the contact surface gradually decreases in the radial direction from the outside to the inside of the stent, so that a plane contact surface inclined toward the central region of the stent is formed on the stent. In this case, a plane perpendicular to the axis of the stent is used as a reference plane, the included angle between the reference plane and the contact surface is a second included angle, the second included angle is a structural compensation angle of the first included angle, and the radial load applied to the stent in the reciprocating process can be adjusted by adjusting the angle of the second included angle. Compared with the technical scheme that the irregular contact surface is arranged to compensate the first included angle, the contact surface is arranged to be a plane, so that the structural compensation efficiency can be improved, and the reduction of the radial load borne by the support is facilitated. On the other hand, the stress uniformity of the diaphragm is improved, and the service life of the diaphragm is prolonged. And then realize optimizing supporting structure, promote support job stabilization nature, reduce product vibration noise, extension product life's technical effect.

In any of the above technical solutions, the angle of the first included angle is a first angle, and the angle of the second included angle is a second angle; wherein the second angle is the product of N and the first angle, and N is more than or equal to 0.5 and less than or equal to 1.5.

In the technical scheme, the relation between the first included angle and the second included angle is limited. Specifically, the angle of the first included angle is a first angle, and the angle of the second included angle is a second angle. The second included angle is N × the first included angle. Wherein, the value range of N is more than or equal to 0.5 and less than or equal to 1.5. By limiting the first included angle with the second angle being more than or equal to 0.5 times, the effectiveness of radial stress compensation can be ensured, and the loss of the compensation effect due to the over-small second included angle is avoided. Correspondingly, by limiting the first included angle of which the second angle is less than or equal to 1.5 times, the contact surface which is obliquely arranged can be prevented from excessively compensating the radial load, and the radial load opposite to the original radial load direction on the bracket is avoided. Meanwhile, the component force of the bracket in the radial direction can be reduced at the stroke end point of the reciprocating motion of the bracket, namely the maximum pressure point, by limiting the magnitude relation of the first angle and the second angle, so that the vibration tendency of the bracket is suppressed. And then realize optimizing the supporting structure, promote the support and rotate the stationarity, reduce the product vibration noise, prolong case subassembly life's technical effect.

In any of the above technical solutions, the spool assembly further includes: the eccentric wheel is connected with the bracket, and the axis of the eccentric wheel is superposed with the axis of the rotating shaft; the shaft hole is arranged on the eccentric wheel, and the axis of the shaft hole is coincided with the first axis.

In the technical scheme, the eccentric wheel comprises a columnar shaft body and a shaft hole arranged in the shaft body, and the axis of the shaft body is the axis of the eccentric wheel. The support is sleeved on the eccentric wheel, and the axis of the support is coincided with the axis of the eccentric wheel. During the working process, the eccentric wheel rotates by taking the axis of the shaft hole as an axis, and under the matching relation of the shapes, the eccentric wheel drives the support to rotate around the axis of the shaft hole, namely the first axis, so that the diaphragm is pushed and pulled through the eccentric rotation of the support. The eccentric wheel is arranged to form eccentric rotation of the support through contact matching between the nested structures, the matching structure is high in compactness and high in reliability, rotation errors caused by structural gaps are reduced, and vibration noise of the valve core assembly is reduced. And the occupied space of this structure is less, can reduce the overall arrangement degree of difficulty of case subassembly in the booster pump inside, is favorable to the lightweight design and the miniaturized design of booster pump. Simultaneously, the dismouting degree of difficulty of this structure is lower, and when support or eccentric wheel broke down, the user can be comparatively convenient accomplish structure maintenance and change through the dismouting. And then realized poppet valve core subassembly compact structure degree, reduced case subassembly size, technical effect of poppet valve core subassembly job stabilization nature and reliability.

In any of the above technical solutions, the spool assembly further includes: the bearing is sleeved on the eccentric wheel, and the support is sleeved on the bearing.

In the technical scheme, a bearing is further arranged in the valve core assembly. Specifically, the bearing is sleeved on the shaft body of the eccentric wheel, and the bracket is sleeved on the bearing, so that the eccentric wheel, the bearing and the bracket are sequentially nested from inside to outside. The bearing is arranged between the bracket and the eccentric wheel, so that the bracket and the eccentric wheel can be rotationally connected. Thereby eliminating the tendency of relative rotation between the stent and the septum while preserving the radial motion of the stent. The friction force between the eccentric wheel and the support is reduced by arranging the bearing, so that the torque applied to the diaphragm by the support is reduced, and the diaphragm is prevented from being twisted and torn by the support. Meanwhile, the bearing is arranged, so that the transmission stability and reliability between the eccentric wheel and the support can be improved, the vibration of the valve core assembly can be inhibited to a certain degree, and the working noise of the valve core assembly is reduced. And then realize optimizing case subassembly structure, lift case subassembly job stabilization nature, reduce the technological effect of case subassembly fault rate.

In any of the above technical solutions, the spool assembly further includes: the first convex rib is arranged on the bracket; and the second convex rib is arranged on the eccentric wheel, and two end faces of the bearing are respectively abutted to the first convex rib and the second convex rib.

In the technical scheme, the positioning structure of the bearing is limited by taking the technical scheme into consideration. Specifically, the inner ring surface of the support is provided with a first convex rib, and the circumferential side surface of the shaft body is provided with a second convex rib. After the assembly is completed, one end face of the bearing abuts against the first rib, and the other opposite end face of the bearing abuts against the second rib, so that the bearing is limited between the bracket and the eccentric wheel. During the assembly process, the bearing is sleeved on the shaft body firstly until the lower end face of the shaft body abuts against the second convex rib, and then the support is sleeved outside the bearing until the first convex rib abuts against the upper end face of the bearing. Through setting up first protruding muscle and second protruding muscle, can prevent that the bearing from beating between support and eccentric wheel to reduce the produced vibration and the noise of case subassembly in the course of the work. And then realize optimizing support transmission structure, promote support eccentric rotation stationarity and reliability, reduce the technical effect of product vibration noise.

In any of the above technical solutions, the spool assembly further includes: the driving shaft penetrates through the shaft hole; and the driving piece is connected with the driving shaft.

In the technical scheme, a driving shaft and a driving piece are further arranged in the valve core assembly. The driving part can be a motor, and a power output shaft of the driving part is connected with one end of the driving shaft through a coupler so as to drive the driving shaft to rotate. The other end of the driving shaft is arranged in the shaft hole of the eccentric wheel in a penetrating way and is connected with the eccentric wheel. Specifically, the driving shaft and the eccentric wheel can be connected through the positioning key and the key groove, the axial connection of the driving shaft and the eccentric wheel can be completed through the shaft hole with the polygonal cross section and the driving shaft, the specific connection mode is not limited, and the requirement that the driving shaft drives the eccentric wheel to rotate synchronously can be met. In the working process, the power output by the driving part is transmitted to the bracket through the driving shaft, the eccentric wheel and the bearing, so that the bracket eccentrically rotates around the axis of the driving shaft, namely the first axis, and the eccentrically rotating bracket pushes and pulls the diaphragm to finish the pumping of the liquid.

In any of the above solutions, the bracket includes: the body is annular; at least three bosses are arranged on the body, and the diaphragm is connected with the end faces of the bosses.

In the technical scheme, the structure of the bracket is explained. Specifically, the bracket includes a body and a boss. The body is a main body frame structure of the support and is used for positioning and supporting the boss arranged on the body. The boss sets up on the body, and first locating surface is located the terminal surface of boss. When the diaphragm is assembled, the diaphragm is placed on the bosses, then the diaphragm is connected to the bosses, and the assembly can be completed, wherein the surfaces, which are in contact with the diaphragm, on the bosses are contact surfaces, and when the contact surfaces are planes, the contact surfaces on each boss incline towards the direction of the body, so that a contact surface array with a high outside and a low inside is formed. The bearing is arranged in the body in a penetrating mode, the side wall of the periphery layer is opposite to the inner ring face of the body, and the first convex rib is arranged on the body and located between the lower end face of the body and the boss. Wherein, the boss is three at least to guarantee the stability of boss to the diaphragm bearing, reduce the diaphragm and appear the possibility of slope problem on the case subassembly. Through structuring the boss structure on the support, can be for push-and-pull diaphragm convenient condition in the course of the work, specifically can promote the deformation range of diaphragm to reduce the required effort of push-and-pull diaphragm. And then realize optimizing the supporting structure, promote the pump sending flow and the pump sending pressure of the booster pump of using this case subassembly, promote the technical effect of relevant product competitiveness.

In any one of the above technical solutions, the contact surfaces on the at least three bosses intersect at the same intersection point, and the intersection point is located on the axis of the body.

In this technical scheme, accept aforementioned technical scheme, the contact surface is the plane, and the contact surface on every boss all inclines towards the direction that the body is located. On this basis, through limiting that the contact surfaces on at least three bosses intersect at the same intersection point, and limiting that the intersection point is located on the axis of the body, a plurality of contact surface arrays with uniform arrangement modes are formed on the bosses. Therefore, the direction of the interaction force between the diaphragm and the support is optimized, the resultant force of the support in the radial direction perpendicular to the first axis is reduced, the compensation effect of the inclined contact surface on the eccentric rotation of the support is improved, and the radial load on the support is reduced. And then realize optimizing supporting structure, promote support rotational stability, reduce product vibration noise, promote the technological effect that the user used and experienced.

In any of the above technical solutions, at least three bosses are uniformly distributed on the same circle using the axis of the body as the axis.

In the technical scheme, the distribution mode of the bosses on the bracket is limited. Specifically, the body is a ring structure. On the body, at least three bosses are uniformly distributed on the same circle taking the axis of the body as an axis so as to form an annularly distributed boss array on the body. Through with a plurality of bosss along the loop line evenly distributed on the body, can promote the homogeneity that the power distributes between support and diaphragm, prevent that the diaphragm from damaging because of the atress is uneven. And then realize optimizing body structure, prolong diaphragm life's technical effect.

In any of the above technical solutions, the spool assembly further includes: the compressing piece is arranged on one side, deviating from the boss, of the diaphragm and abutted against the diaphragm, and the diaphragm is pressed on the boss.

In this technical scheme, still be provided with in the case subassembly and compress tightly the piece, compress tightly the piece and set up on the diaphragm. After the assembly is completed, the pressing piece is abutted against the diaphragm, so that the diaphragm is tightly pressed between the support and the pressing piece, and the clamping of the diaphragm is realized. The diaphragm is a main working part in the booster pump, and in the working process, the booster pump drives the diaphragm to move, so that the size of a space partitioned by the diaphragm is changed, and the medium is extracted, pressurized and discharged. The support and the pressing piece are arranged, so that the diaphragm can be accurately positioned in the booster pump, and the possibility of dislocation of the diaphragm in the working process is reduced. And the pressing piece can enable the diaphragm to cling to the bracket, so that a gap between the first positioning surface and the diaphragm is eliminated.

In any of the above technical schemes, the number of the pressing pieces is the same as that of the bosses, and the pressing pieces and the bosses are arranged in a one-to-one correspondence manner.

In the technical scheme, the structure of the pressing piece is expanded and explained. Specifically, each valve core assembly is provided with a plurality of pressing pieces, and the number of the pressing pieces is the same as that of the bosses on the body. During assembly, the diaphragm is now aligned and placed over at least three bosses. And then, one pressing piece is correspondingly arranged on one side of the diaphragm, which is away from the support, aiming at each boss, and the pressing pieces are tightly pressed on the diaphragm, so that the diaphragm is tightly pressed on the bosses by the pressing pieces. Through injecing above-mentioned structure, can reduce the possibility that the diaphragm appears the dislocation between support and the compressing member through setting up the positional stability of a plurality of compressing member poppet valve core subassemblies to the diaphragm on the one hand. On the other hand, the structure can provide convenient conditions for the valve core assembly to push and pull the diaphragm in the working process, specifically can improve the deformation amplitude of the diaphragm, and reduces the acting force required for pushing and pulling the diaphragm. Therefore, the valve core assembly structure is optimized, the pumping flow and the pumping pressure of a booster pump using the valve core assembly are improved, and the technical effect of improving the competitiveness of related products is achieved.

A second aspect of the present invention provides a booster pump, comprising: a housing comprising a cavity; the valve core assembly in any technical scheme is arranged in the cavity, and the diaphragm is connected with the shell and separates the cavity.

In this technical scheme, a booster pump provided with the valve core assembly in any one of the above technical schemes is defined, so that the booster pump has the advantages of the valve core assembly in any one of the above technical schemes, the technical effects achieved by the valve core assembly in any one of the above technical schemes can be achieved, and in order to avoid repetition, the details are not repeated here. Specifically, the booster pump comprises a housing, which is an outer frame structure of the booster pump and is used for enclosing and defining a cavity. The bracket and the hold down are disposed in the cavity to position the diaphragm within the housing. The periphery of the diaphragm is connected with the inner wall of the shell to divide the cavity into two sub-cavities, and the support and the pressing piece are respectively located in the sub-cavities on two sides of the diaphragm. When the support drives the part separating membrane and the pressing piece to move relative to the shell, the membrane connected to the shell is pushed and pulled, and therefore deformation occurs. In the stretching process, the volume of the sub-cavity where the pressing piece is located is increased, so that the medium can be sucked into the sub-cavity by the booster pump. When the diaphragm is pushed by the support towards the pressing piece, the volume of the sub-cavity where the pressing piece is located is reduced, so that the medium in the sub-cavity is pushed out of the booster pump. Thereby realizing the medium pumping of the booster pump.

In any of the above solutions, the housing includes an inlet and an outlet, the inlet and the outlet communicating with the cavity on the side of the diaphragm facing away from the support.

In the technical scheme, an inlet and an outlet for the medium to enter and exit are arranged on the shell. The inlet and the outlet are communicated with the sub-cavity on one side of the diaphragm. The holder and the drive member are arranged in the sub-chamber on the side facing away from the inlet and the outlet. Specifically, the driving member is fixed to the housing, and the bracket connects the driving member and the diaphragm. When the booster pump works, the driving piece drives the support and the pressing piece to move relative to the shell, so that media are sucked and discharged by pushing and pulling the diaphragm.

A third aspect of the present invention provides a water purifier comprising: the booster pump in any one of the above technical schemes.

In this technical scheme, a water purifier provided with the booster pump in any one of the above technical schemes is limited, so that the water purifier has the advantages of the booster pump in any one of the above technical schemes, the technical effects realized by the booster pump in any one of the above technical schemes can be realized, and the details are not repeated here to avoid repetition.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 illustrates one of the schematic structural views of a valve core assembly according to one embodiment of the present invention;

figure 2 shows a second schematic structural view of a valve core assembly according to an embodiment of the utility model;

FIG. 3 shows a schematic structural view of an eccentric according to an embodiment of the utility model;

FIG. 4 shows one of the structural schematics of a stent according to one embodiment of the utility model;

FIG. 5 shows a second schematic structural view of a stent according to an embodiment of the utility model;

fig. 6 shows a schematic structural view of a booster pump according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

100 a valve core assembly, 110 an eccentric wheel, 112 a shaft body, 114 a shaft hole, 116 a second rib, 120 a support, 122 a contact surface, 124 a first rib, 126 a body, 128 a boss, 130 a diaphragm, 140 a bearing, 150 a driving shaft, 152 a driving part, 160 a pressing part and 200 a booster pump.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A valve core assembly, a booster pump, and a water purifier according to some embodiments of the present invention will be described below with reference to fig. 1 to 6.

Example one

As shown in fig. 1, 2, 3 and 4, according to a first aspect of the present invention, a valve core assembly 100 is provided, the valve core assembly 100 includes an eccentric wheel 110 capable of rotating around a first axis, and includes a shaft body 112, and a first included angle exists between an axis of the shaft body 112 and the first axis; the bracket 120 is sleeved on the shaft body 112; a diaphragm 130 coupled to the support 120; the surface of the bracket 120 contacting the diaphragm 130 is a contact surface 122, and the contact surface 122 extends in a direction away from the diaphragm 130 in a radial direction from the outside to the inside of the shaft body 112.

The valve core assembly 100 provided by the application can be applied to the booster pump 200, and the movement of the valve core assembly 100 in the working process is converted into the volume change of the cavity in the booster pump 200, so that liquid can be pressed into the cavity by negative pressure when the volume of the cavity is increased, and conversely, when the volume of the cavity is reduced, the liquid is discharged out of the cavity. The valve core assembly 100 includes an eccentric 110, a bracket 120, and a diaphragm 130, the bracket 120 being a frame structure in the valve core assembly 100 for locating and supporting other working structures on the valve core assembly 100. The eccentric wheel 110 is a transmission structure between the bracket 120 and the driving member 152, and the bracket 120 is sleeved on the shaft body 112 of the eccentric wheel 110. During operation, the eccentric wheel 110 rotates around the first axis, and a first included angle exists between the axis of the shaft body 112 and the first axis, so that the bracket 120 sleeved on the shaft body 112 can rotate eccentrically around the first axis together. The diaphragm 130 is disposed on the support 120 and coupled to the support 120. The diaphragm 130 is made of an elastic material and can deform when being pushed or pulled so as to change the volume of the cavity in the booster pump 200, for example, when the diaphragm 130 is stretched outwards, the volume of the cavity is increased immediately, whereas when the diaphragm 130 is restored or pushed inwards, the volume of the cavity is decreased immediately, so that the liquid is extracted and pumped by pushing or pulling. Wherein at least a part of the ring-shaped support 120 is ring-shaped, and the axis of the structure of the part of the ring-shaped support 120 is the axis of the support 120. In the working process, the bracket 120 is driven by the eccentric wheel 110 to rotate around a first axis preset in the valve core assembly 100, and an included angle exists between the first axis and the axis of the bracket 120, so that the eccentric rotation of the bracket 120 is formed. During the eccentric rotation, the outer surface of the support 120 can reciprocate in the direction of the first axis, thereby driving a portion of the diaphragm 130 connected to the support 120 to reciprocate in the direction of the first axis. Because the diaphragm 130 has stretchability, the shape of the diaphragm 130 is regularly changed during the process that a part of the diaphragm 130 is pushed and pulled by the support 120, so as to draw and push the liquid through the deformed diaphragm 130. The larger the angle of the first included angle is, the stronger the liquid pumping capacity of the valve core assembly 100 is, the larger the pumping flow rate is reflected on the booster pump 200, but the larger the dynamic load applied to the valve core assembly 100 moving correspondingly in the first axis direction is, and the dynamic load is mainly a radial load due to the eccentric rotation of the bracket 120, where the radial direction is a radial direction perpendicular to the first axis. The radial load to which the support 120 reaches the end points on the movement path is the greatest during one reciprocation cycle of the support 120.

In fig. 3, a vertical dotted line is a first axis, a dotted line inclined with respect to the first axis is an axis of the shaft body 112, and α is a first included angle.

In this regard, the present application improves the shape of the bracket 120. Specifically, the diaphragm 130 is positioned at the front end of the support 120, the surface of the support 120 that contacts the diaphragm 130 is the contact surface 122, and the contact surface 122 may be a single ring surface or a plurality of flat surfaces. Wherein, in the radial direction from the outside to the inside of the shaft body 112, the contact surface 122 extends away from the diaphragm 130. The radial direction is a radial direction of the shaft body 112 and the annular holder 120, and is a direction extending from the outer peripheral side of the holder 120 to the axis of the holder 120 from the outside to the inside, so that the contact surface 122 having a high outer side and a low inner side is formed in the radial direction from the outside to the inside. By providing the contact surface 122 with a higher outer portion and a lower inner portion, the contact surface 122 can compensate the eccentric angle, i.e., the first included angle, of the eccentric rotating bracket 120 to a certain extent. Therefore, the radial load applied to the bracket 120 during the reciprocating motion process is reduced, so as to reduce the vibration generated by the valve core assembly 100 during the operation process, thereby solving the technical problems of high vibration noise and poor reliability. And then realize optimizing case subassembly 100 structure, lift case subassembly 100 job stabilization nature and structural reliability, reduce product work noise, extension product life promotes the technical effect that the user used and experienced.

Example two

As shown in fig. 2, 3 and 4, in the second aspect embodiment of the present invention, the contact surface 122 is a plane, and a plane perpendicular to the axis of the holder 120 is a reference plane; a second included angle exists between the reference plane and the contact surface 122.

In this embodiment, further description is made of the contact surface 122. Specifically, the contact surface 122 is a plane, and the height of the contact surface 122 gradually decreases in a radial direction from the outside to the inside of the holder 120 to form the plane contact surface 122 on the holder 120 inclined toward the central region of the holder 120. In this case, a plane perpendicular to the axis of the support 120 is used as a reference plane, and the included angle between the reference plane and the contact surface 122 is a second included angle, which is a structural compensation angle of the first included angle, so that the radial load applied to the support 120 during the reciprocating motion can be adjusted by adjusting the angle of the second included angle. Compared with the embodiment in which the irregular contact surface 122 is arranged to compensate for the first included angle, the arrangement of the contact surface 122 as a plane can improve the structural compensation efficiency and help reduce the radial load applied to the bracket 120. On the other hand, the stress uniformity of the diaphragm 130 is improved, and the service life of the diaphragm 130 is prolonged. And then realize optimizing support 120 structure, promote support 120 job stabilization nature, reduce product vibration noise, extension product life's technical effect.

In fig. 4, a vertical dotted line is an axis of the bracket 120, a dotted line perpendicular to the vertical dotted line is used to show a reference plane, and β is a second included angle.

In any of the above embodiments, the first included angle is a first angle, and the second included angle is a second angle; wherein the second angle is the product of N and the first angle, and N is more than or equal to 0.5 and less than or equal to 1.5.

In this embodiment, the relationship between the first angle and the second angle is defined. Specifically, the angle of the first included angle is a first angle, and the angle of the second included angle is a second angle. The second included angle is N × the first included angle. Wherein, the value range of N is more than or equal to 0.5 and less than or equal to 1.5. By limiting the first included angle with the second angle being more than or equal to 0.5 times, the effectiveness of radial stress compensation can be ensured, and the loss of the compensation effect due to the over-small second included angle is avoided. Accordingly, by defining the first included angle with the second angle being less than or equal to 1.5 times, the obliquely arranged contact surface 122 can be prevented from excessively compensating the radial load, and the occurrence of the radial load on the bracket 120 opposite to the original radial load can be avoided. Meanwhile, by defining the magnitude relationship of the first angle and the second angle, the component force of the carrier 120 in the radial direction can be reduced at the stroke end point of the reciprocating motion of the carrier 120, that is, the maximum pressure point, thereby suppressing the vibration tendency of the carrier 120. And then realize optimizing support 120 structure, promote support 120 and rotate the stationarity, reduce product vibration noise, prolong case subassembly 100 life's technical effect.

EXAMPLE III

As shown in fig. 1, 3 and 4, in the third aspect embodiment of the present invention, the spool assembly 100 further includes: the eccentric wheel 110 is connected with the bracket 120, and the axis of the eccentric wheel 110 is superposed with the axis of the rotating shaft; and the shaft hole 114 is arranged on the eccentric wheel 110, and the axis of the shaft hole 114 is coincided with the first axis.

In this embodiment, the eccentric wheel 110 includes a cylindrical shaft body 112, and a shaft hole 114 disposed inside the shaft body 112, and an axis of the shaft body 112 is an axis of the eccentric wheel 110. The bracket 120 is sleeved on the eccentric wheel 110, and the axis of the bracket 120 coincides with the axis of the eccentric wheel 110. During operation, the eccentric wheel 110 rotates around the axis of the shaft hole 114, and under the form fit relationship, the eccentric wheel 110 drives the bracket 120 to rotate around the axis of the shaft hole 114, i.e. the first axis, so as to push and pull the diaphragm 130 through the eccentric rotation of the bracket 120. The eccentric wheel 110 is arranged to form eccentric rotation of the bracket 120 through contact fit between nested structures, and the fit structure is high in compactness and reliability, so that rotation errors caused by structural gaps can be reduced, and vibration noise of the valve core assembly 100 can be reduced. And the space that this structure occupy is less, can reduce the overall arrangement degree of difficulty of case subassembly 100 in booster pump 200 inside, is favorable to booster pump 200's lightweight design and miniaturized design. Meanwhile, the structure is low in dismounting difficulty, and when the support 120 or the eccentric wheel 110 breaks down, a user can conveniently complete structural maintenance and replacement through dismounting. And further, the technical effects of the poppet valve core assembly 100 of compact structure, the reduction of the size of the valve core assembly 100, and the working stability and reliability of the poppet valve core assembly 100 are achieved.

In any of the above embodiments, the valve core assembly 100 further comprises: the bearing 140 is sleeved on the eccentric wheel 110, and the bracket 120 is sleeved on the bearing 140.

In this embodiment, a bearing 140 is also provided in the valve core assembly 100. Specifically, the bearing 140 is sleeved on the shaft body 112 of the eccentric wheel 110, and the bracket 120 is sleeved on the bearing 140, so as to form the eccentric wheel 110, the bearing 140 and the bracket 120 which are nested in sequence from inside to outside. The rotational connection between the carrier 120 and the eccentric 110 can be realized by providing a bearing 140 between the carrier 120 and the eccentric 110. Thereby eliminating the tendency for relative rotation between the support 120 and the diaphragm 130 while preserving the radial motion of the support 120. The bearing 140 is arranged to help reduce the friction between the eccentric wheel 110 and the bracket 120, thereby reducing the torque applied by the bracket 120 on the diaphragm 130 and preventing the diaphragm 130 from being twisted and torn by the bracket 120. Meanwhile, the arrangement of the bearing 140 can also improve the transmission stability and reliability between the eccentric wheel 110 and the bracket 120, can inhibit the vibration of the valve core assembly 100 to a certain extent, and can reduce the working noise of the valve core assembly 100. Further, the technical effects of optimizing the structure of the valve core assembly 100, increasing the working stability of the valve core assembly 100 and reducing the failure rate of the valve core assembly 100 are achieved.

In any of the above embodiments, the valve core assembly 100 further comprises: a first rib 124 provided on the bracket 120; and a second rib 116 provided on the eccentric wheel, and both end surfaces of the bearing 140 are respectively abutted against the first rib 124 and the second rib 116.

In this embodiment, the positioning structure of the bearing 140 is defined in accordance with the foregoing embodiment. Specifically, a first rib 124 is disposed on an inner annular surface of the bracket 120, and a second rib 116 is disposed on a circumferential side surface of the shaft body 112. When assembled, one end surface of the bearing 140 abuts against the first rib 124 and the opposite end surface abuts against the second rib 116 to define the bearing 140 between the bracket 120 and the eccentric 110. In the assembling process, the bearing 140 is firstly sleeved on the shaft body 112 until the lower end surface of the shaft body 112 abuts against the second rib 116, and then the bracket 120 is sleeved outside the bearing 140 until the first rib 124 abuts against the upper end surface of the bearing 140. By providing the first rib 124 and the second rib 116, the bearing 140 is prevented from jumping between the bracket 120 and the eccentric 110, so as to reduce vibration and noise generated during operation of the valve core assembly 100. And then realize optimizing support 120 transmission structure, promote support 120 eccentric rotation stationarity and reliability, reduce the technical effect of product vibration noise.

In any of the above embodiments, the valve core assembly 100 further comprises: a driving shaft 150 inserted into the shaft hole 114; and a driving member 152 connected to the driving shaft 150.

In this embodiment, a drive shaft 150 and a driver 152 are also provided in the valve cartridge assembly 100. The driving member 152 may be a motor, and a power output shaft of the driving member 152 is connected to one end of the driving shaft 150 through a coupling to drive the driving shaft 150 to rotate. The other end of the driving shaft 150 is inserted into the shaft hole 114 of the eccentric wheel 110 and connected to the eccentric wheel 110. Specifically, the driving shaft 150 and the eccentric wheel 110 may be connected by a positioning key and a key slot, and the driving shaft 150 may be axially connected by providing a shaft hole 114 with a polygonal cross-sectional shape, and the connection manner is not limited herein, and may be satisfied when the driving shaft 150 drives the eccentric wheel 110 to rotate synchronously. In operation, the power output by the driving member 152 is transmitted to the frame 120 via the driving shaft 150 and the eccentric 110 and the bearing 140, so that the frame 120 eccentrically rotates around the axis of the driving shaft 150, i.e. the first axis, and the eccentrically rotating frame 120 pushes and pulls the diaphragm 130 to complete the pumping of the liquid.

Example four

As shown in fig. 1, 4 and 5, in the fourth aspect embodiment of the present invention, the bracket 120 includes: a body 126, the body 126 being annular; at least three bosses 128 are provided on the body 126, and a diaphragm 130 is connected to end faces of the bosses 128.

In this embodiment, the structure of the holder 120 is explained. Specifically, the bracket 120 includes a body 126 and a boss 128. The body 126 is the main frame structure of the stand 120 for positioning and supporting the boss 128 provided on the body 126. The boss 128 is disposed on the body 126, and the first locating surface is located on an end surface of the boss 128. When assembling the diaphragm 130, the diaphragm 130 is placed on the bosses 128, and then the diaphragm 130 is connected to the bosses 128, wherein the surface of the bosses 128 contacting the diaphragm 130 is the contact surface 122, and when the contact surface 122 is a plane, the contact surface 122 on each boss 128 is inclined toward the body 126 to form an array of contact surfaces 122 with high outside and low inside. The bearing 140 is arranged in the body 126 in a penetrating way, the side wall of the peripheral layer is arranged opposite to the inner annular surface of the body 126, and the first convex rib 124 is arranged on the body 126 and is positioned between the lower end surface of the body 126 and the boss 128. The number of the bosses 128 is at least three, so that the stability of the bosses 128 against the diaphragm 130 is ensured, and the possibility of the diaphragm 130 tilting on the valve core assembly 100 is reduced. By forming the boss 128 on the support 120, a convenient condition for pushing and pulling the diaphragm 130 can be provided during operation, specifically, the deformation amplitude of the diaphragm 130 can be increased, and the acting force required for pushing and pulling the diaphragm 130 can be reduced. Further, the technical effects of optimizing the structure of the bracket 120, increasing the pumping flow rate and the pumping pressure of the booster pump 200 using the valve core assembly 100, and increasing the competitiveness of related products are achieved.

In any of the above embodiments, the contact surfaces 122 on at least three of the bosses 128 meet at a common point of intersection, which is located on the axis of the body 126.

In this embodiment, and in keeping with the previous embodiment, the contact surface 122 is planar, and the contact surface 122 on each boss 128 is inclined toward the body 126. On this basis, a plurality of contact surfaces 122 are uniformly arranged on the boss 128 by defining that the contact surfaces 122 on at least three bosses 128 meet at the same intersection point and defining that the intersection point is positioned on the axis of the body 126. Thereby optimizing the direction of the interaction force between the diaphragm 130 and the carrier 120 and helping to reduce the resultant force of the carrier 120 in a radial direction perpendicular to the first axis, thereby increasing the compensation effect of the inclined contact surface 122 on the eccentric rotation of the carrier 120 and reducing the radial load experienced by the carrier 120. And then realize optimizing support 120 structure, promote support 120 stability in rotation, reduce product vibration noise, promote the technological effect that the user used and experienced.

In any of the above embodiments, the at least three bosses 128 are evenly distributed on the same circle about the axis of the body 126.

In this embodiment, the distribution of the bosses 128 on the support 120 is defined. Specifically, the body 126 is a ring-shaped structure. On the body 126, at least three bosses 128 are uniformly distributed on the same circle about the axis of the body 126 to form an annularly distributed array of bosses 128 on the body 126. By uniformly distributing the plurality of bosses 128 on the body 126 along a circular line, the uniformity of the distribution of the acting force between the bracket 120 and the diaphragm 130 can be improved, and the diaphragm 130 can be prevented from being damaged due to uneven force. Thereby realizing the technical effects of optimizing the structure of the body 126 and prolonging the service life of the diaphragm 130.

In any of the above embodiments, the valve core assembly 100 further comprises: and the pressing piece 160 is arranged on the side, facing away from the boss 128, of the diaphragm 130 and abuts against the diaphragm 130, so that the diaphragm 130 is pressed on the boss 128.

In this embodiment, a pressing member 160 is also provided in the valve core assembly 100, and the pressing member 160 is provided on the diaphragm 130. After assembly, the pressing member 160 abuts against the diaphragm 130, so that the diaphragm 130 is tightly pressed between the bracket 120 and the pressing member 160, thereby clamping the diaphragm 130. Wherein, the diaphragm 130 is a main working part in the booster pump 200, and during the working process, the booster pump 200 drives the diaphragm 130 to move, so that the size of the space partitioned by the diaphragm 130 is changed, thereby completing the extraction of the medium, the pressurization of the medium and the discharge of the medium. The provision of the bracket 120 and the hold-down member 160 may accurately position the diaphragm 130 within the booster pump 200 to reduce the likelihood of the diaphragm 130 becoming misaligned during operation. And the pressing member 160 may press the diaphragm 130 against the bracket 120, thereby eliminating a gap between the first locating surface and the diaphragm 130.

In any of the above embodiments, the number of the pressing members 160 is the same as the number of the bosses 128, and the pressing members 160 are provided in one-to-one correspondence with the bosses 128.

In this embodiment, the structure of the pressing member 160 is explained. Specifically, a plurality of hold-down members 160 are provided in each of the valve core assemblies 100, and the number of hold-down members 160 is the same as the number of bosses 128 on the body 126. During assembly, the diaphragm 130 is now aligned and placed over the at least three bosses 128. Thereafter, a pressing member 160 is provided for each boss 128 on the side of the diaphragm 130 facing away from the holder 120, and the pressing member 160 is pressed against the diaphragm 130, so that the diaphragm 130 is pressed against the boss 128 by the pressing member 160. By defining the above structure, on the one hand, the positioning stability of the diaphragm 130 by the valve core assembly 100 can be improved by providing the plurality of pressing members 160, and the possibility of the diaphragm 130 being misaligned between the bracket 120 and the pressing members 160 can be reduced. On the other hand, the structure can provide convenient conditions for the valve core assembly 100 to push and pull the diaphragm 130 in the working process, and particularly can improve the deformation amplitude of the diaphragm 130 and reduce the acting force required for pushing and pulling the diaphragm 130. Further, the valve core assembly 100 structure is optimized, the pumping flow and the pumping pressure of the booster pump 200 applying the valve core assembly 100 are improved, and the technical effect of improving the competitiveness of related products is achieved.

EXAMPLE five

As shown in fig. 6, a fifth aspect embodiment of the present invention provides a booster pump 200, where the booster pump 200 includes: a housing comprising a cavity; the valve core assembly 100 of any of the above embodiments is disposed in the cavity, and the diaphragm 130 is connected to the housing and separates the cavity.

In this embodiment, a booster pump 200 provided with the valve core assembly 100 in any of the above embodiments is defined, so that the booster pump 200 has the advantages of the valve core assembly 100 in any of the above embodiments, and the technical effects achieved by the valve core assembly 100 in any of the above embodiments can be achieved, and in order to avoid repetition, the details are not repeated here. Specifically, the booster pump 200 includes a housing, which is an outer frame structure of the booster pump 200, for enclosing a cavity defined. The holder 120 and the hold down 160 are disposed in the cavity to position the diaphragm 130 within the housing. The peripheral side of the membrane 130 is connected to the inner wall of the housing to divide the chamber into two sub-chambers, and the support 120 and the pressing member 160 are respectively located in the sub-chambers on both sides of the membrane 130. When the bracket 120 moves a part of the diaphragm 130 and the pressing member 160 relative to the housing, the diaphragm 130 attached to the housing is pushed or pulled, thereby being deformed. During the stretching process, the volume of the sub-chamber in which the pressing member 160 is located increases so that the pressurizing pump 200 can suck the medium into the sub-chamber. When the diaphragm 130 is pushed by the support 120 in the direction of the pressing member 160, the volume of the sub-chamber in which the pressing member 160 is located decreases, so that the medium in the sub-chamber is pushed out of the booster pump 200. Thereby achieving the medium pumping of the booster pump 200.

In any of the above embodiments, the housing includes an inlet and an outlet that communicate with the cavity on the side of the diaphragm 130 facing away from the support 120.

In this embodiment, the housing is provided with an inlet and an outlet for the medium to enter and exit. Both the inlet and outlet communicate with the sub-chambers on one side of the membrane 130. The support 120 and the drive member 152 are arranged in the subcavities on the side facing away from the inlet and outlet. Specifically, the actuator 152 is secured to the housing and the bracket 120 connects the actuator 152 and the diaphragm 130. When the booster pump 200 is operated, the driving member 152 drives the bracket 120 and the pressing member 160 to move relative to the housing, so as to suck and discharge the medium by pushing and pulling the diaphragm 130.

EXAMPLE six

In an embodiment of a sixth aspect of the present invention, there is provided a water purifier comprising: such as the booster pump 200 of any of the embodiments described above.

In this embodiment, a water purifier provided with the booster pump 200 in any of the above embodiments is defined, so that the water purifier has the advantages of the booster pump 200 in any of the above embodiments, and the technical effects achieved by the booster pump 200 in any of the above embodiments can be achieved, and further description is omitted here to avoid repetition.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve cartridge assembly, comprising:

the eccentric wheel can rotate by taking a first axis as an axis and comprises an axis body, and a first included angle is formed between the axis of the axis body and the first axis;

the bracket is sleeved on the shaft body;

a diaphragm coupled to the support;

the surface of the support, which is connected with the diaphragm, is a contact surface, and the contact surface extends in the direction away from the diaphragm in the radial direction from the outside to the inside of the shaft body.

2. The valve core assembly of claim 1,

the contact surface is a plane, and a plane perpendicular to the axis of the shaft body is a reference surface;

a second included angle exists between the reference surface and the contact surface.

3. The valve core assembly of claim 2,

the angle of the first included angle is a first angle, and the angle of the second included angle is a second angle;

wherein the second angle is the product of N and the first angle, and N is more than or equal to 0.5 and less than or equal to 1.5.

4. The valve cartridge assembly of claim 1, wherein the eccentric further comprises:

the shaft hole is formed in the eccentric wheel, and the axis of the shaft hole coincides with the first axis.

5. The spool assembly of claim 4, further comprising:

the bearing is sleeved on the eccentric wheel, and the support is sleeved on the bearing.

6. The spool assembly of claim 5, further comprising:

the first convex rib is arranged on the bracket;

and the second convex rib is arranged on the eccentric wheel, and two end surfaces of the bearing are respectively abutted to the first convex rib and the second convex rib.

7. The spool assembly of claim 4, further comprising:

the driving shaft is arranged in the shaft hole in a penetrating mode;

a drive member coupled to the drive shaft.

8. The valve cartridge assembly of any one of claims 2 to 7, wherein the bracket comprises:

the body is annular, and the axis of the body is superposed with the axis of the shaft body;

at least three bosses are arranged on the body, and the diaphragm is connected with the end faces of the bosses.

9. The valve cartridge assembly of claim 8, wherein the contact surfaces on at least three of the bosses meet at a common intersection point, the intersection point being located on the axis of the body.

10. The valve cartridge assembly of claim 8, wherein the at least three bosses are evenly distributed on a same circle that is centered on the axis of the body.

11. The spool assembly of claim 8, further comprising:

the pressing piece is arranged on one side, away from the boss, of the diaphragm and abutted against the diaphragm, and is used for pressing the diaphragm on the boss.

12. The valve core assembly of claim 11, wherein the number of the pressing members is the same as the number of the bosses, and the pressing members are arranged in one-to-one correspondence with the bosses.

13. A booster pump, comprising:

a housing comprising a cavity;

a valve core assembly according to any one of claims 1 to 12, provided in the chamber, the diaphragm being connected to the housing and separating the chamber.

14. The booster pump of claim 13, wherein the housing includes an inlet and an outlet, the inlet and the outlet communicating with the cavity on a side of the diaphragm facing away from the support.

15. A water purifier, characterized by comprising:

a booster pump as claimed in claim 13 or 14.