CN116412107A

CN116412107A - Support mechanism, valve core assembly, booster pump and water purifier

Info

Publication number: CN116412107A
Application number: CN202111635120.5A
Authority: CN
Inventors: 刘建斌; 李伟; 周军; 唐伟鹏; 陈茂伟
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2023-07-11

Abstract

The invention provides a support mechanism, a valve core assembly, a booster pump and a water purifier. The bracket mechanism comprises: a base including a guide groove; the heat-resistant piece is arranged on the base, is partially embedded in the guide groove and is used for supporting the diaphragm and is used for driving the diaphragm to move; wherein, in the depth direction of the guide groove, the sectional area of the guide groove is gradually reduced. Through set up the heat-resisting spare between base and diaphragm, can effectively reduce the heat transfer efficiency of base to diaphragm to reduce the temperature of diaphragm in the course of the work, avoid the diaphragm high temperature damage. And further, the valve core assembly structure is optimized, the service life of the diaphragm is prolonged on the basis of meeting the high-flow pumping requirement, the failure rate of the support mechanism is reduced, and the failure rate of the booster pump is reduced.

Description

Support mechanism, valve core assembly, booster pump and water purifier

Technical Field

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

Background

As users increase the pump water flow demand of liquid pumping devices, the increase in the flow and life of the booster pumps, the core components in the pumping devices, becomes necessary. According to market demands, booster pump flow demands are currently evolving from 600G to 800G and 1200G large fluxes.

In the related art, as the flow increases, the heat generation phenomenon of the motor and the bearing becomes more remarkable. The internal bearing support of the diaphragm pump is directly contacted with the diaphragm, so that the conduction rate of heat from the bearing support to the diaphragm is accelerated. But the high temperature shortens the service life of the diaphragm, which is a key component of the diaphragm pump, resulting in a steep increase in the failure rate of the diaphragm pump.

Therefore, how to design a valve core assembly capable of overcoming the above technical defects is a technical problem to be solved.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art.

To this end, a first aspect of the invention proposes a bracket mechanism.

The second aspect of the present invention provides a valve cartridge assembly.

A third aspect of the invention provides a booster pump.

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

In view of this, a first aspect of the present invention provides a bracket mechanism comprising: a base including a guide groove; the heat-resistant piece is arranged on the base, is partially embedded in the guide groove and is used for supporting the diaphragm and is used for driving the diaphragm to move; wherein, in the depth direction of the guide groove, the sectional area of the guide groove is gradually reduced.

The application defines a support mechanism for booster pump, and support mechanism includes the base, and the base is used for connecting the diaphragm on the booster pump, drives the diaphragm and moves in the booster pump. The diaphragm is the core part in the booster pump, and the base is arranged in to connect diaphragm and drive assembly, and drive assembly drives the diaphragm through the bearing wobbling on the drive base and swings in the booster pump, and wobbling diaphragm can change the space size of base contralateral pumping cavity, and when wobbling diaphragm increases pumping cavity, the negative pressure is impressed liquid in pumping cavity. Conversely, when the oscillating diaphragm narrows the pumping chamber, the previously pumped liquid is forced out of the pumping chamber, thereby meeting the pumping requirements of the liquid.

In the related art, the requirement for the pumping flow rate of the booster pump is higher and higher according to the product requirement, and the flow rate of the booster pump on the market is developing from 600G, 800G to 1200G in the large flux direction. However, one way to increase the pumping flow is to increase the movement frequency of the diaphragm, but the high-speed synergistic mode generates a large amount of heat during the working process, so that the temperature of the base and the diaphragm released from the base is raised, and the actual temperature can reach about 70 ℃. However, the membrane is mostly made of elastic materials such as rubber, and the performance of the membrane is irreversibly affected by high temperature, so that the membrane is rapidly aged. Therefore, the technical problems of short service life of the diaphragm, high failure rate and poor reliability of the booster pump are generated.

In this regard, the present application provides a thermal barrier in the bracket mechanism. Specifically, the heat-resistant piece is fixed on the base, and is used for supporting the diaphragm, and after the assembly is completed, the heat-resistant piece is located between the base and the diaphragm, and the heat-resistant piece keeps contact with the diaphragm, and when the heat-resistant piece moves along with the base, the diaphragm which keeps contact with the heat-resistant piece deforms. The heat shield has excellent heat insulating properties and can slow down the heat transfer efficiency between the base and the membrane. Specifically, the heat-resistant piece can be prepared from a material of PA6+30GF (nylon 66 +30wt% glass fiber), and can also be prepared from a heat-insulating material such as ceramic.

Through set up the heat-resisting spare between base and diaphragm, can effectively reduce the heat transfer efficiency of base to diaphragm to reduce the temperature of diaphragm in the course of the work, avoid the diaphragm high temperature damage. Thereby solving the technical problems existing in the related art. And further, the valve core assembly structure is optimized, the service life of the diaphragm is prolonged on the basis of meeting the high-flow pumping requirement, the failure rate of the support mechanism is reduced, and the failure rate of the booster pump is reduced.

Specifically, in this technical scheme, base and heat-resisting member are split type structure, make the base can select the higher metal material of intensity on the one hand through setting up split type base and heat-resisting member to guarantee that the base can drive the diaphragm high-speed motion for a long time, reduce the base fault rate. On the other hand, the heat insulation performance of the heat-resistant piece can be adjusted by selecting and replacing the heat-resistant pieces with different materials, so that the heat-resistant piece with the corresponding material is selected according to the pumping flow requirement of the booster pump, and the cost of the bracket mechanism is compressed on the basis of meeting the heat insulation requirement.

On this basis, be provided with the guide way on the base, the shape of guide way and the outline shape looks adaptation of some heat-resisting spare, with the position assembly of some heat-resisting spare on the base can be accomplished to the embedded guide way of heat-resisting spare to guarantee the positioning accuracy of heat-resisting spare on the base, guarantee that base and heat-resisting spare can drive the accurate swing of diaphragm. The sectional area of the guide groove can be determined by cutting the guide groove in a plane perpendicular to the depth direction of the guide groove, and gradually reduces in the depth direction of the guide groove, so that the guide groove gradually tapers from top to bottom is formed. By limiting the tapering of the guide groove along the depth direction, the guide groove in the shape of a horn mouth can be formed, so that the guide effect is realized through the horn mouth, and part of the heat-resistant piece can slide to a preset installation position after being placed in the guide groove, thereby reducing the probability of misloading of the heat-resistant piece. And then realize optimizing and hinder hot spare location structure, promote and hinder hot spare positioning accuracy, improve the technological effect of support mechanism yields.

In addition, the bracket mechanism provided by the invention can also have the following additional technical characteristics:

in the above technical scheme, the base still includes the blind hole, and support mechanism still includes: the guide piece is arranged in the blind hole and comprises a guide inclined surface opposite to the side wall of the blind hole; the guide inclined plane and the blind hole enclose a guide groove.

In this solution, a further definition is made of the base structure. Specifically, be provided with the blind hole on the surface of base towards the heat-resisting spare, and be provided with the guide piece in the blind hole, the week side of guide piece is formed with the direction inclined plane, and the guide groove is enclosed jointly to the diapire of direction inclined plane, blind hole and the lateral wall of blind hole. Wherein, the guide inclined plane is inclined relative to the side wall of the blind hole, thereby forming a tapered guide groove. After the assembly of the heat-resistant piece is completed, part of the heat-resistant piece is embedded into the guide groove and fills the guide groove so as to accurately fix the heat-resistant piece and prevent the heat-resistant piece from shaking relative to the base in the working process. And further, the control precision of the diaphragm is improved, and the liquid pumping efficiency is accurately controlled.

In any of the above technical solutions, the guide member is a prismatic table, and a bottom surface of the prismatic table is connected with a bottom wall of the blind hole.

In this embodiment, the above-described embodiment is received, and the shape of the guide is defined. Specifically, the guide piece is a prismatic table, the bottom surface of the prismatic table is connected with the bottom wall of the blind hole, the top surface faces the heat-resistant piece, and a plurality of side surfaces on the prismatic table are guide inclined surfaces.

The cross section of the guide groove and the cross section of the guide piece are regular polygons, for example, the cross section of the guide groove is an equilateral triangle, the cross section of the guide piece is a corresponding triangular platform, the cross section of the guide groove is a regular quadrilateral, the cross section of the guide piece is a corresponding rectangular platform or the cross section of the guide groove is a regular octagon, and the guide piece is a corresponding octagon platform. In the working process, the peripheral side face of the prismatic table is abutted against the side wall of the guide groove so as to prevent the heat-resistant piece from rotating relative to the positioning part. In this regard, the technical scheme does not rigidly limit the shapes of the guide groove and the guide piece, and can meet the positioning requirement.

In any of the above embodiments, the guide is a hexagonal frustum.

In the technical scheme, the cross section of the guide groove is regular hexagon, the corresponding cross section of the guide piece is hexagonal, and the heat-resistant piece can be clamped on the positioning part by inserting part of the heat-resistant piece between the hexagonal and the guide groove. Wherein, the hexagonal platform is provided with a through hole for connecting the heat-resistant piece and the base by the connecting piece.

Specifically, the heat-resistant piece and the guide groove are in interference fit, and tight connection of the base and the heat-resistant piece can be achieved by limiting the interference fit relationship, so that the positioning accuracy of the heat-resistant piece is improved, and dislocation of the heat-resistant piece relative to the positioning part and even falling out of the positioning part in the working process are avoided. And further the technical effects of improving the structural stability and reliability of the bracket mechanism are achieved.

In any of the above technical solutions, the number of guide grooves is N, and the N guide grooves are uniformly distributed on the base; wherein N is an integer greater than 2.

In the technical scheme, N positioning parts are arranged on the base, and a guide groove is arranged on each positioning part. On the basis, the distribution mode of the guide grooves on the base is limited. Specifically, the base is of a ring structure. On the base, at least three guide grooves are uniformly distributed on the same circle taking the axis of the base as the shaft so as to form an annular distributed guide groove array on the body. Through with a plurality of guide slots along the annular line evenly distributed on the body, can promote the homogeneity that the base effort distributes, prevent that the diaphragm from damaging because of the atress is uneven. And further, the technical effects of optimizing the base structure and prolonging the service life of the membrane are achieved.

In any of the above technical solutions, the base is annular, and the N guide grooves are uniformly distributed on the same circle with the axis of the base as the axis.

In the technical scheme, the distribution mode of the guide grooves on the base is limited. Specifically, the base is of a ring structure. On the base, at least three guide grooves are uniformly distributed on the same circle taking the axis of the base as the shaft so as to form an annular distributed guide groove array on the body. Through with a plurality of guide slots along the annular line evenly distributed on the body, can promote the homogeneity that the base effort distributes, prevent that the diaphragm from damaging because of the atress is uneven. And further, the technical effects of optimizing the base structure and prolonging the service life of the membrane are achieved.

In any one of the above technical solutions, the number of the heat-resistant pieces is N, and the N heat-resistant pieces are connected with the N guide grooves in a one-to-one correspondence manner.

In the technical scheme, the number of the heat-resistant pieces and the corresponding relation between the heat-resistant pieces and the guide grooves are limited. Specifically, the number of the heat-resistant pieces is the same as that of the guide grooves, and the N guide grooves are arranged in one-to-one correspondence with the N heat-resistant pieces so as to form N heat-resistant piece arrays distributed in an annular mode on the base, and the N heat-resistant pieces are used for supporting the membrane together. Through setting up N heat-resisting members corresponding to N guide slots, can reduce the area of contact between heat-resisting member and the diaphragm on the basis of satisfying diaphragm location connection demand to avoid large tracts of land contact to influence the action range of diaphragm. And further, the technical effects of optimizing the structure of the support mechanism and improving the pumping performance of the support mechanism are achieved.

In any of the above technical solutions, the heat blocking member includes: a body; the convex rib is arranged on the body and embedded in the guide groove.

In this technical scheme, make the limit to the structure of heat-resisting spare, specifically, the heat-resisting spare includes body and protruding muscle, and the body is located the guide way outside for bearing and connection diaphragm, the top surface of body and diaphragm keep contact, when driving the base swing, the body push-and-pull diaphragm to make the diaphragm take place deformation, thereby change the size of the cavity that deviates from base one side through the diaphragm of deformation, in order to accomplish the extraction and the pump of liquid. The protruding muscle sets up on the bottom surface of body, and the shape looks adaptation of protruding muscle and guide way is aimed at the guide way earlier with protruding muscle in the assembly process, and afterwards accurately propelling movement to the guide way inside with protruding muscle through the guide slope to with hinder the accurate location of hot piece on the base.

Wherein, the location portion is columnar structure, is provided with the mounting groove of shape and location portion outline looks adaptation on the heat-resisting spare. In the assembly process, the positioning part is aligned with the mounting groove, and then the positioning part is inserted into the mounting groove, so that the assembly of the heat-resistant piece can be completed. Through setting up the mounting groove, can cooperate location portion and guide way to form nested location connection structure to promote the location precision of heat-resisting spare. Meanwhile, the nested connecting structure can improve the positioning stability of the heat-resistant piece, and avoid dislocation and even falling of the heat-resistant piece in the long-time reciprocating motion process. And further, the structural stability of the support mechanism is improved, and the technical effect of reducing the failure rate of the support mechanism is achieved.

In any of the above technical solutions, the ribs are in interference fit with the guide grooves.

In the technical scheme, the technical scheme is accepted, and the convex ribs are in interference fit with the guide grooves. Specifically, the side of the convex rib facing the base is the front end of the convex rib, and the opposite side is the tail end of the convex rib. In the assembly process, after the convex rib is aligned with the guide groove, the front end of the convex rib is placed on the guide inclined plane, and the convex rib slides towards the bottom of the guide groove under the action of the guide inclined plane, so that the pre-assembly of the heat-resistant piece is completed. But at this time, the size of the convex rib is slightly larger than that of the guide groove, so that the convex rib does not completely sink into the guide groove, and then the convex rib is pressed into the guide groove through the connecting piece, so that the outer surface of the convex rib is tightly attached to the inner wall surface of the guide groove, a gap between the convex rib and the guide groove is eliminated, and dislocation even falling of the heat-resistant piece in the working process is avoided. And further, the heat-resistant piece positioning structure is optimized, the positioning precision of the heat-resistant piece is improved, and the technical effect of reducing the failure rate of the bracket mechanism is achieved.

In any of the above technical solutions, the heat blocking member is detachably connected with the base.

In this technical scheme, hinder the detachable connection between hot spare and the base. Through setting up this detachable construction, can realize the modularization design of base and heat-resisting piece on the one hand, set up the heat-resisting piece that corresponds thermal-insulated performance for the base of different pumping efficiency. On the other hand, through setting up detachable and hinder hot spare, can be when a certain hinder hot spare ageing or damage through dismantling and changing and hinder the maintenance of hot spare quick completion bracket mechanism to bring the convenient condition for the user, reduce product maintenance degree of difficulty and maintenance cost.

In any of the above solutions, the bracket mechanism further includes: the connecting piece is connected with the base and the heat-resistant piece.

In the technical scheme, the valve core assembly is further provided with the connecting piece, after the primary positioning of the heat-resistant piece is finished through the guide groove, the heat-resistant piece and the base are connected through the connecting piece, so that the base can drive the heat-resistant piece and the diaphragm to swing together, and the heat-resistant piece and the base are prevented from being separated.

Specifically, the connecting piece can be the screw, when the connecting piece chooses for use the screw, is provided with first screw on the heat-resisting piece, and protruding muscle encircles first screw setting, corresponds on the base and is provided with the second screw, and the second screw sets up on the guide, and the screw runs through first screw and submerges the second screw to connect heat-resisting piece and base. To this, this structure is only an optional structure of connecting piece, can also accomplish the connection of heat-resisting spare and base through other connection structure such as setting up buckle draw-in groove, and this application does not do hard limit to the structure of connecting piece, satisfies this demand of reliable connection can.

In a second aspect of the present invention, there is provided a valve cartridge assembly comprising: a stent mechanism as in any one of the above; the diaphragm is arranged on the heat-resistant piece, and the heat-resistant piece is positioned between the base and the diaphragm.

In this technical scheme, a valve core assembly provided with the bracket mechanism in any one of the above technical schemes is limited, so that the valve core assembly has the advantages of the bracket mechanism in any one of the above technical schemes, and can achieve the technical effects achieved by the bracket mechanism in any one of the above technical schemes, and in order to avoid repetition, the description is omitted here. The diaphragm is arranged on the heat-resistant piece, and the heat-resistant piece is arranged between the base and the diaphragm, so that the heat transfer efficiency between the base and the diaphragm is reduced through the heat-resistant piece, the diaphragm is prevented from being damaged at high temperature, and the service life of the diaphragm is prolonged.

In any of the above technical solutions, the valve core assembly further includes: and the pressing piece is arranged on the diaphragm and is away from the heat-resistant piece, and the pressing piece is connected with the heat-resistant piece and is used for pressing the diaphragm on the heat-resistant piece.

In this technical scheme, still be provided with the clamp in the case subassembly, the clamp sets up on the diaphragm, and the connecting piece runs through the diaphragm and connects clamp and heat-resisting spare to sticis the diaphragm on the heat-resisting spare through the clamp, makes the diaphragm closely laminate with the top surface of heat-resisting spare, thereby realizes the clamping of diaphragm. 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 separated by the diaphragm is changed, and the extraction of a medium, the pressurization of the medium and the discharge of the medium are completed. The diaphragm can be accurately positioned in the booster pump by the aid of the connecting piece and the pressing piece, so that the possibility of dislocation of the diaphragm in the working process is reduced. And the pressing piece can enable the diaphragm to be tightly attached to the base, so that a gap between the first positioning surface and the diaphragm is eliminated, the movement precision of the diaphragm is improved, and the pumping efficiency of the valve core assembly is ensured.

A third aspect of the present invention provides a booster pump comprising: a housing including a cavity; the valve core assembly in any one of the above technical schemes is arranged in the cavity, the diaphragm is connected with the shell, and the diaphragm is separated into the cavities.

In this technical scheme, a booster pump provided with the valve core assembly in any one of the above technical schemes is limited, so that the booster pump has the advantages of the valve core assembly in any one of the above technical schemes, and can achieve the technical effects achieved by the valve core assembly in any one of the above technical schemes, and in order to avoid repetition, the description is omitted here.

Specifically, the booster pump includes the casing, and the casing is the external frame structure of booster pump for enclose the cavity that defines. The base and the hold-down member 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 subchambers, and the base and the pressing piece are respectively positioned in the subchambers at two sides of the diaphragm. When the base drives part of the diaphragm and the pressing piece to move relative to the shell, the diaphragm connected to the shell is pushed and pulled, so that deformation occurs. In the stretching process, the volume of the subchamber where the compressing piece is located is increased, so that the booster pump can suck the medium into the subchamber. When the diaphragm is pushed by the base towards the direction where the pressing piece is located, the volume of the subchamber where the pressing piece is located is reduced, so that the medium in the subchamber is pushed out of the booster pump. Thereby realizing the medium pumping of the booster pump.

In any of the above solutions, the casing further includes an inlet and an outlet, the inlet and the outlet being in communication with the cavity of the membrane facing away from the base side, and the booster pump further includes: and the driving assembly is connected with the base and used for driving the base to swing relative to the shell.

In this technical solution, the housing is provided with an inlet and an outlet for the medium. The inlet and the outlet are communicated with the subchamber at one side of the membrane. The base and the drive member are arranged in the subchamber on the side facing away from the inlet and outlet. Specifically, the drive assembly is fixed on the casing, and the base is connected with the drive assembly and the diaphragm. When the booster pump works, the driving component drives the base and the pressing piece to move relative to the shell, so that the medium is sucked and discharged through the push-pull membrane.

In any of the above solutions, the driving assembly includes: a driving member including a driving shaft; the eccentric wheel is sleeved on the driving shaft; the inner ring of the bearing is sleeved on the eccentric wheel, and the outer ring of the bearing is arranged on the base in a penetrating way.

In this technical solution, a limitation is made on the structure of the driving assembly. Specifically, the drive assembly includes a drive member, an eccentric, and a bearing. The eccentric wheel and the bearing are transmission structures between the base and the driving piece, the bearing is sleeved on the shaft body of the eccentric wheel, and the base is sleeved on the outer side of the bearing. In the working process, 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 base sleeved on the shaft body can eccentrically rotate around the first axis together. The diaphragm is arranged on the base and connected with the base. 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 pulled outwards, the volume of the cavity is increased, otherwise, when the diaphragm is restored to the original state or pushed inwards, the volume of the cavity is reduced, and therefore liquid is pumped and pumped through pushing and pulling.

A fourth aspect of the present invention provides a water purifier, comprising: a booster pump as in any above.

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, and can achieve the technical effects achieved by the booster pump in any one of the above technical schemes, and in order to avoid repetition, the description is omitted here.

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

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows one of the structural schematic diagrams of a bracket mechanism according to one embodiment of the invention;

FIG. 2 shows a second schematic structural view of a bracket mechanism according to one embodiment of the invention;

FIG. 3 shows one of the structural schematic diagrams of the base according to one embodiment of the invention;

FIG. 4 shows a second schematic structural view of a base according to an embodiment of the present invention;

FIG. 5 shows a third schematic structural view of a base according to an embodiment of the present invention;

FIG. 6 shows a cross-sectional view of the base of the embodiment of FIG. 5 in the A-A direction;

FIG. 7 shows one of the schematic structural views of the heat shield according to one embodiment of the present invention;

FIG. 8 shows a second schematic structural view of a heat shield according to an embodiment of the present invention;

FIG. 9 shows a third schematic structural view of a heat shield according to an embodiment of the present invention;

FIG. 10 shows a cross-sectional view of the thermal barrier of the embodiment of FIG. 9 in the B-B direction;

FIG. 11 shows a schematic structural view of a valve cartridge assembly according to one embodiment of the invention;

figure 12 shows a schematic diagram of the structure of a booster pump according to an embodiment of the invention.

Wherein, the correspondence between the reference numerals and the component names in fig. 1 to 12 is:

100 support mechanisms, 110 bases, 112 guide grooves, 114 guide members, 120 heat-resistant members, 122 bodies, 124 ribs, 126 connecting members, 200 valve core assemblies, 210 diaphragms, 220 compression members, 300 booster pumps, 310 shells, 320 driving assemblies, 322 driving members, 324 eccentric wheels and 326 bearings.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

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 described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

A bracket mechanism, a valve cartridge assembly, a booster pump, and a water purifier according to some embodiments of the present invention are described below with reference to fig. 1 to 12.

Example 1

As shown in fig. 1, 2, 5 and 6, the first aspect of the present invention provides a stand mechanism 100, the stand mechanism 100 comprising: a base 110 including a guide groove 112; the heat-resistant piece 120 is arranged on the base 110, part of the heat-resistant piece 120 is embedded in the guide groove 112, the heat-resistant piece 120 is used for supporting the diaphragm 210, and the heat-resistant piece 120 is used for driving the diaphragm 210 to move; wherein the cross-sectional area of the guide groove 112 is gradually reduced in the depth direction of the guide groove 112.

The present application defines a support mechanism 100 for a booster pump 300, where the support mechanism 100 includes a base 110, and the base 110 is used to connect to a diaphragm 210 on the booster pump 300 to drive the diaphragm 210 to move in the booster pump 300. The diaphragm 210 is a core component in the booster pump 300, the base 110 is used for connecting the diaphragm 210 and the driving component 320, the driving component 320 drives the diaphragm 210 to swing in the booster pump 300 by driving the bearing 326 on the base 110 to swing, the swinging diaphragm 210 can change the space size of the pumping cavity on the opposite side of the base 110, and when the swinging diaphragm 210 enlarges the pumping cavity, the negative pressure presses the liquid into the pumping cavity. Conversely, when the oscillating diaphragm 210 contracts the pumping chamber, the previously drawn fluid is forced out of the pumping chamber, thereby meeting the pumping requirements of the fluid.

In this regard, the present application provides the heat blocking member 120 in the holder mechanism 100. Specifically, the heat-resistant member 120 is fixed on the base 110, the heat-resistant member 120 is used for supporting the membrane 210, after the assembly is completed, the heat-resistant member 120 is located between the base 110 and the membrane 210, and the heat-resistant member 120 is in contact with the membrane 210, and when the heat-resistant member 120 moves along with the base 110, the membrane 210 in contact with the heat-resistant member 120 deforms. The heat blocking member 120 has excellent heat insulating properties, and can slow down heat transfer efficiency between the base 110 and the diaphragm 210. Specifically, the heat-resistant member 120 may be made of a material such as PA6+30gf (nylon 66 +30wt% glass fiber), or may be made of a heat-insulating material such as ceramic, so that the material of the heat-resistant member 120 is not rigidly limited in this embodiment, and the heat-insulating requirement is satisfied.

By arranging the heat-resisting member 120 between the base 110 and the diaphragm 210, the heat transfer efficiency from the base 110 to the diaphragm 210 can be effectively reduced, so that the temperature of the diaphragm 210 in the working process is reduced, and the diaphragm 210 is prevented from being damaged at high temperature. Thereby solving the technical problems existing in the related art. And further, the structure of the valve core assembly 200 is optimized, the service life of the diaphragm 210 is prolonged on the basis of meeting the high-flow pumping requirement, the failure rate of the support mechanism 100 is reduced, and the failure rate of the booster pump 300 is reduced.

Specifically, in this embodiment, the base 110 and the heat-resisting member 120 are in a split structure, and by providing the split base 110 and the heat-resisting member 120, on one hand, the base 110 can be made of a metal material with higher strength, so as to ensure that the base 110 can drive the diaphragm 210 to move at a high speed for a long time, and reduce the failure rate of the base 110. On the other hand, the heat insulation performance of the heat-blocking member 120 can be adjusted by selecting and replacing the heat-blocking member 120 of different materials, so that the heat-blocking member 120 of a corresponding material is selected according to the pumping flow requirement of the booster pump 300, thereby compressing the cost of the bracket mechanism 100 on the basis of meeting the heat insulation requirement.

On this basis, the base 110 is provided with the guide groove 112, the shape of the guide groove 112 is matched with the outline shape of a part of the heat-resisting member 120, and the part of the heat-resisting member 120 is embedded into the guide groove 112 to complete the positioning assembly of the heat-resisting member 120 on the base 110, so as to ensure the positioning precision of the heat-resisting member 120 on the base 110 and ensure that the base 110 and the heat-resisting member 120 can drive the diaphragm 210 to swing accurately. The cross-sectional area of the guide groove 112 can be determined by cutting the guide groove 112 in a plane perpendicular to the depth direction of the guide groove 112, and the cross-sectional area of the guide groove 112 gradually decreases in the depth direction of the guide groove 112, thereby forming the guide groove 112 tapered from top to bottom. By defining the guide groove 112 to taper in the depth direction, the guide groove 112 may be formed in a bell-mouth shape to achieve a guide effect through the bell mouth, so that a part of the heat blocking member 120 may be slid to a predetermined installation position after being placed in the guide groove 112, thereby reducing the probability of erroneous installation of the heat blocking member 120. And further, the positioning structure of the heat-resistant piece 120 is optimized, the positioning precision of the heat-resistant piece 120 is improved, and the technical effect of the yield of the bracket mechanism 100 is improved.

Example two

As shown in fig. 3, 4, 5 and 6, in the second aspect of the embodiment of the present invention, the base 110 further includes a blind hole, and the stand mechanism 100 further includes: a guide 114 disposed in the blind hole and including a guide slope opposite to a sidewall of the blind hole; the guide chamfer and the blind hole enclose a guide slot 112.

In this embodiment, the base 110 structure is further defined. Specifically, a blind hole is formed on the surface of the base 110 facing the heat-blocking member 120, a guide member 114 is disposed in the blind hole, a guide inclined surface is formed on the peripheral side of the guide member 114, and the guide inclined surface, the bottom wall of the blind hole, and the side wall of the blind hole jointly enclose the guide groove 112. Wherein the guide ramp is inclined relative to the side wall of the blind bore, thereby forming a tapered guide slot 112. After the assembly of the heat-blocking member 120 is completed, a part of the heat-blocking member 120 is embedded into the guide groove 112 and fills the guide groove 112, so as to accurately fix the heat-blocking member 120 and prevent the heat-blocking member 120 from shaking relative to the base 110 during the working process. Thereby improving the control accuracy of the diaphragm 210 and precisely controlling the pumping efficiency of the liquid.

In any of the above embodiments, the guide 114 is a prismatic table, and the bottom surface of the prismatic table is connected to the bottom wall of the blind hole.

In this embodiment, the foregoing embodiment is received, and the shape of the guide 114 is defined. Specifically, the guide member 114 is a prismatic table, the bottom surface of the prismatic table is connected to the bottom wall of the blind hole, the top surface faces the heat-resisting member 120, and a plurality of side surfaces on the prismatic table are guide inclined surfaces.

The cross-sectional shapes of the guide groove 112 and the guide member 114 are regular polygons, for example, the cross-sectional shape of the guide groove 112 is an equilateral triangle, the guide member 114 is a corresponding triangular platform, the cross-sectional shape of the guide groove 112 is a regular quadrilateral, the guide member 114 is a corresponding rectangular platform or the cross-sectional shape of the guide groove 112 is a regular octagon, and the guide member 114 is a corresponding eight-sided platform. During operation, the peripheral side of the prismatic table abuts against the side wall of the guide groove 112 to prevent the heat blocking member 120 from rotating relative to the positioning portion. In this regard, the shape of the guide groove 112 and the guide member 114 is not rigidly limited in this embodiment, and the above positioning requirements are satisfied.

In any of the embodiments described above, the guide 114 is a hexagonal frustum.

In this embodiment, the cross-sectional shape of the guide groove 112 is regular hexagon, and correspondingly the cross-sectional shape of the guide member 114 is hexagonal, and the heat blocking member 120 can be clamped on the positioning portion by inserting a portion of the heat blocking member 120 between the hexagonal and the guide groove 112. Wherein a through hole is provided in the hexagonal stage for the connection member 126 to connect the heat blocking member 120 and the base 110.

Specifically, the heat-resistant member 120 is in interference fit with the guide groove 112, and by defining the interference fit relationship, tight connection between the base 110 and the heat-resistant member 120 can be achieved, so as to improve positioning accuracy of the heat-resistant member 120, and avoid dislocation of the heat-resistant member 120 relative to the positioning portion and even falling out of the positioning portion during working. Thereby achieving the technical effect of improving the structural stability and reliability of the bracket mechanism 100.

In any of the above embodiments, the number of the guide grooves 112 is N, and the N guide grooves 112 are uniformly distributed on the base 110; wherein N is an integer greater than 2.

In this embodiment, the base 110 is provided with N positioning portions, and each positioning portion is provided with a guide groove 112. On this basis, the distribution of the guide grooves 112 on the base 110 is defined. Specifically, the base 110 has a ring structure. On the base 110, at least three guide grooves 112 are uniformly distributed on the same circle with the axis of the base 110 as an axis to form an array of guide grooves 112 distributed in a ring shape on the body 122. By uniformly distributing the plurality of guide grooves 112 on the body 122 along the annular line, the uniformity of the force distribution of the base 110 can be improved, and the membrane 210 is prevented from being damaged due to uneven stress. Thereby realizing the technical effects of optimizing the structure of the base 110 and prolonging the service life of the diaphragm 210.

In any of the above embodiments, the base 110 is annular, and the N guide grooves 112 are uniformly distributed on the same circle with the axis of the base 110 as the axis.

In this embodiment, the distribution of the guide grooves 112 on the base 110 is defined. Specifically, the base 110 has a ring structure. On the base 110, at least three guide grooves 112 are uniformly distributed on the same circle with the axis of the base 110 as an axis to form an array of guide grooves 112 distributed in a ring shape on the body 122. By uniformly distributing the plurality of guide grooves 112 on the body 122 along the annular line, the uniformity of the force distribution of the base 110 can be improved, and the membrane 210 is prevented from being damaged due to uneven stress. Thereby realizing the technical effects of optimizing the structure of the base 110 and prolonging the service life of the diaphragm 210.

As shown in fig. 1 and 2, in any of the above embodiments, the number of heat-blocking members 120 is N, and the N heat-blocking members 120 are connected to the N guide grooves 112 in a one-to-one correspondence manner.

In this embodiment, the number of heat blocking members 120 and the correspondence relationship of the heat blocking members 120 and the guide grooves 112 are defined. Specifically, the number of the heat-resistant pieces 120 is the same as the number of the guide grooves 112, and the N guide grooves 112 are arranged in one-to-one correspondence with the N heat-resistant pieces 120, so as to form N heat-resistant pieces 120 arrays distributed annularly on the base 110, so as to support the membrane 210 together by the N heat-resistant pieces 120. By arranging N heat-blocking members 120 corresponding to N guide grooves 112, the contact area between the heat-blocking members 120 and the membrane 210 can be reduced on the basis of meeting the positioning and connecting requirements of the membrane 210, so as to avoid the influence of large-area contact on the movement range of the membrane 210. Thereby realizing the technical effects of optimizing the structure of the bracket mechanism 100 and improving the pumping performance of the bracket mechanism 100.

Example III

As shown in fig. 7, 8, 9 and 10, in the third aspect of the embodiment of the present invention, the heat blocking member 120 includes: a body 122; the rib 124 is disposed on the body 122, and the rib 124 is embedded in the guide groove 112.

In this embodiment, the structure of the heat-blocking member 120 is limited, specifically, the heat-blocking member 120 includes a body 122 and ribs 124, the body 122 is located outside the guide groove 112 and is used for supporting and connecting the diaphragm 210, the top surface of the body 122 is kept in contact with the diaphragm 210, and when the driving base 110 swings, the body 122 pushes and pulls the diaphragm 210 to deform the diaphragm 210, so that the size of the cavity on the side facing away from the base 110 is changed by the deformed diaphragm 210, and the liquid is pumped and pumped out. The rib 124 is disposed on the bottom surface of the body 122, the shape of the rib 124 is adapted to the shape of the guide groove 112, the rib 124 is aligned to the guide groove 112 during the assembly process, and then the rib 124 is accurately pushed into the guide groove 112 by the guide inclined surface, so as to accurately position the heat-resisting member 120 on the base 110.

Wherein, the positioning portion has a columnar structure, and the heat-resisting member 120 is provided with a mounting groove with a shape adapted to the outer contour of the positioning portion. In the assembly process, the positioning portion is aligned to the mounting groove, and then the positioning portion is inserted into the mounting groove, so that the assembly of the heat-resisting component 120 can be completed. By providing the installation groove, a nested positioning connection structure can be formed by matching the positioning part and the guide groove 112, thereby improving the positioning accuracy of the heat-resisting member 120. Meanwhile, the nested connecting structure can improve the positioning stability of the heat-resistant piece 120, and avoid dislocation and even falling of the heat-resistant piece 120 in the long-time reciprocating motion process. Thereby realizing the technical effects of improving the structural stability of the bracket mechanism 100 and reducing the failure rate of the bracket mechanism 100.

In any of the embodiments described above, the ribs 124 are an interference fit with the guide slots 112.

In this embodiment, receiving the previous embodiment, the ribs 124 are an interference fit with the guide slots 112. Specifically, the side of the rib 124 facing the base 110 is the front end of the rib 124, and the opposite side is the end of the rib 124. In the assembly process, after the ribs 124 are aligned with the guide grooves 112, the front ends of the ribs 124 are placed on the guide inclined surfaces, and the ribs 124 slide toward the bottoms of the guide grooves 112 under the action of the guide inclined surfaces, so that the pre-assembly of the heat blocking member 120 is completed. However, at this time, since the size of the rib 124 is slightly larger than the size of the guide groove 112, the rib 124 does not completely sink into the guide groove 112, and then the rib 124 is pressed into the guide groove 112 by the connecting piece 126, so that the outer surface of the rib 124 is tightly attached to the inner wall surface of the guide groove 112, thereby eliminating the gap between the rib 124 and the guide groove 112, and avoiding the dislocation or even falling of the heat-resisting member 120 during the working process. And further, the positioning structure of the heat-resistant piece 120 is optimized, the positioning precision of the heat-resistant piece 120 is improved, and the technical effect of reducing the failure rate of the bracket mechanism 100 is achieved.

Example IV

As shown in fig. 1, 2 and 11, in the fourth embodiment of the present invention, the heat blocking member 120 is detachably connected with the base 110.

In this embodiment, the heat blocking member 120 is detachably connected to the base 110. By providing the detachable structure, on one hand, the modular design of the base 110 and the heat-resistant member 120 can be realized, and the heat-resistant member 120 with corresponding heat-insulating performance is provided for the bases 110 with different pumping efficiencies. On the other hand, by arranging the detachable heat-resistant member 120, the maintenance of the bracket mechanism 100 can be rapidly completed by detaching and replacing the heat-resistant member 120 when one heat-resistant member 120 is aged or damaged, thereby bringing convenience to users and reducing the product maintenance difficulty and maintenance cost.

In any of the above embodiments, the stand mechanism 100 further includes: the connection member 126 connects the base 110 and the heat blocking member 120.

In this embodiment, the valve core assembly 200 is further provided with a connecting member 126, and after the initial positioning of the heat blocking member 120 is completed through the guide slot 112, the heat blocking member 120 is connected with the base 110 through the connecting member 126, so that the base 110 can drive the heat blocking member 120 and the diaphragm 210 to swing together, thereby avoiding the separation of the heat blocking member 120 and the base 110.

Specifically, the connecting member 126 may be a screw, when the connecting member 126 is a screw, the heat-blocking member 120 is provided with a first screw hole, the rib 124 is disposed around the first screw hole, the base 110 is correspondingly provided with a second screw hole, the second screw hole is disposed on the guide member 114, and the screw penetrates the first screw hole and is submerged into the second screw hole to connect the heat-blocking member 120 and the base 110. In this regard, this structure is only an alternative structure of the connecting member 126, and the connection between the heat-resistant member 120 and the base 110 can be completed by setting other connecting structures such as a snap-in slot.

Example five

As shown in fig. 11, a fifth aspect of the present invention provides a valve cartridge assembly 200, the valve cartridge assembly 200 comprising: a bracket mechanism 100 as in any of the embodiments described above; the diaphragm 210 is disposed on the heat-blocking member 120, and the heat-blocking member 120 is located between the base 110 and the diaphragm 210.

In this embodiment, a spool assembly 200 provided with the holder mechanism 100 in any of the above embodiments is defined, and therefore the spool assembly 200 has the advantages of the holder mechanism 100 in any of the above embodiments, and the technical effects achieved by the holder mechanism 100 in any of the above embodiments can be achieved.

In the related art, the pumping flow rate of the booster pump 300 is increasingly demanded in response to the product demand, and the flow rate of the booster pump 300 on the market is developing from 600G, 800G to 1200G in a large flux direction. However, one way to increase the pumping flow rate is to increase the movement frequency of the diaphragm 210, but the high-speed synergistic mode generates a large amount of heat during operation, so that the temperature of the base 110 and the diaphragm 210 released from the base 110 increases, and the actual temperature can reach about 70 ℃. However, the membrane 210 is mostly made of elastic materials such as rubber, and the high temperature has an irreversible effect on the performance of the membrane 210, which results in rapid aging of the membrane 210. Thus, the technical problems of short service life of the diaphragm 210, high failure rate, and poor reliability of the booster pump 300 are generated.

By arranging the heat-resisting member 120 between the base 110 and the diaphragm 210, the heat transfer efficiency from the base 110 to the diaphragm 210 can be effectively reduced, so that the temperature of the diaphragm 210 in the working process is reduced, and the diaphragm 210 is prevented from being damaged at high temperature. Thereby solving the technical problems existing in the related art. And further, the structure of the valve core assembly 200 is optimized, the service life of the diaphragm 210 is prolonged on the basis of meeting the high-flow pumping requirement, the failure rate of the valve core assembly 200 is reduced, and the failure rate of the booster pump 300 is reduced.

Specifically, in this embodiment, the base 110 and the heat-resisting member 120 are in a split structure, and by providing the split base 110 and the heat-resisting member 120, on one hand, the base 110 can be made of a metal material with higher strength, so as to ensure that the base 110 can drive the diaphragm 210 to move at a high speed for a long time, and reduce the failure rate of the base 110. On the other hand, the heat insulation performance of the heat blocking member 120 can be adjusted by selecting and replacing the heat blocking member 120 of different materials, so that the heat blocking member 120 of a corresponding material is selected according to the pumping flow requirement of the booster pump 300, thereby compressing the cost of the valve core assembly 200 on the basis of meeting the heat insulation requirement.

In any of the above embodiments, the cartridge assembly 200 further comprises: the pressing piece 220 is arranged on the diaphragm 210 and is away from the heat-resistant piece 120, and the pressing piece 220 is connected with the heat-resistant piece 120 and is used for pressing the diaphragm 210 on the heat-resistant piece 120.

In this embodiment, the valve core assembly 200 is further provided with a pressing member 220, the pressing member 220 is disposed on the diaphragm 210, and the connecting member 126 penetrates through the diaphragm 210 and connects the pressing member 220 and the heat-resisting member 120, so that the pressing member 220 presses the diaphragm 210 against the heat-resisting member 120, so that the diaphragm 210 is closely attached to the top surface of the heat-resisting member 120, and clamping of the diaphragm 210 is achieved. The diaphragm 210 is a main working portion in the booster pump 300, and in the working process, the booster pump 300 drives the diaphragm 210 to move, so that the size of the space separated by the diaphragm 210 is changed, and the extraction of the medium, the pressurization of the medium and the discharge of the medium are completed. The provision of the connector 126 and the hold-down 220 allows for accurate positioning of the diaphragm 210 within the booster pump 300 to reduce the likelihood of misalignment of the diaphragm 210 during operation. And the pressing piece 220 can enable the diaphragm 210 to be tightly attached to the base 110, so that a gap between the first positioning surface and the diaphragm 210 is eliminated, the movement precision of the diaphragm 210 is improved, and the pumping efficiency of the valve core assembly 200 is ensured.

Example six

As shown in fig. 12, a sixth aspect embodiment of the present invention provides a booster pump 300, the booster pump 300 including: a housing 310 including a cavity; the valve core assembly 200 in any of the embodiments described above is disposed in a cavity, the diaphragm 210 is connected to the housing 310, and the diaphragm 210 separates the cavity.

In this embodiment, a booster pump 300 provided with the valve core assembly 200 in any of the above embodiments is defined, so that the booster pump 300 has the advantages of the valve core assembly 200 in any of the above embodiments, and can achieve the technical effects achieved by the valve core assembly 200 in any of the above embodiments, and the description thereof is omitted to avoid redundancy.

Specifically, the booster pump 300 includes a casing 310, and the casing 310 is an external frame structure of the booster pump 300, and is configured to define a cavity. The base 110 and the compression member 220 are disposed in the cavity to position the diaphragm 210 within the housing 310. The periphery of the diaphragm 210 is connected to the inner wall of the housing 310 to divide the cavity into two sub-cavities, and the base 110 and the pressing member 220 are respectively located in the sub-cavities at two sides of the diaphragm 210. When the base 110 drives part of the diaphragm 210 and the pressing member 220 to move relative to the housing 310, the diaphragm 210 connected to the housing 310 is pushed and pulled, thereby being deformed. During the stretching process, the volume of the subchamber in which the compressing member 220 is located increases so that the booster pump 300 may suck the medium into the subchamber. When the diaphragm 210 is pushed by the base 110 toward the direction in which the pressing member 220 is located, the volume of the subchamber in which the pressing member 220 is located is reduced, so that the medium in the subchamber is pushed out of the booster pump 300. Thereby realizing the medium pumping of the booster pump 300.

In any of the above embodiments, the casing 310 further includes an inlet and an outlet, which communicate with the cavity of the diaphragm 210 on the side facing away from the base 110, and the booster pump 300 further includes: the driving assembly 320 is connected to the base 110, and is used for driving the base 110 to swing relative to the housing 310.

In this embodiment, the housing 310 is provided with an inlet and an outlet for media. The inlet and outlet are both in communication with a subchamber on one side of the diaphragm 210. The base 110 and the driver 322 are arranged in a subchamber at the side facing away from the inlet and outlet. Specifically, the driving assembly 320 is fixed to the housing 310, and the base 110 connects the driving assembly 320 and the diaphragm 210. When the booster pump 300 operates, the driving assembly 320 drives the base 110 and the compressing element 220 to move relative to the housing 310, so as to realize the suction and discharge of the medium by pushing and pulling the diaphragm 210.

In any of the above embodiments, the driving assembly 320 includes: a driving member 322 including a driving shaft; eccentric wheel 324, sleeve and locate on drive shaft; the bearing 326, the inner race of the bearing 326 is sleeved on the eccentric wheel 324, and the outer race of the bearing 326 is arranged on the base 110 in a penetrating way.

In this embodiment, a limitation is made on the structure of the driving assembly 320. Specifically, drive assembly 320 includes a drive 322, an eccentric 324, and a bearing 326. The eccentric wheel 324 and the bearing 326 are transmission structures between the base 110 and the driving piece 322, the bearing 326 is sleeved on the shaft body of the eccentric wheel 324, and the base 110 is sleeved outside the bearing 326. In operation, the eccentric wheel 324 rotates about the first axis, and a first angle exists between the axis of the shaft body and the first axis, so that the base 110 sleeved on the shaft body can rotate eccentrically about the first axis together. The membrane 210 is disposed on the base 110 and connected to the base 110. The diaphragm 210 is made of an elastic material and can be deformed when pushed and pulled to change the volume of the cavity in the booster pump 300, for example, when the diaphragm 210 is pulled outwards, the volume of the cavity is increased, whereas when the diaphragm 210 is restored or pushed inwards, the volume of the cavity is reduced, so that liquid is pumped and pumped through pushing and pulling.

A fourth aspect of the present invention provides a water purifier, comprising: such as booster pump 300 in any of the embodiments described above.

In this embodiment, a water purifier provided with the booster pump 300 in any of the above embodiments is defined, so the water purifier has the advantages of the booster pump 300 in any of the above embodiments, and the technical effects achieved by the booster pump 300 in any of the above embodiments can be achieved, and the description thereof is omitted to avoid redundancy.

In the description of the present invention, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are orientation or positional relationship based on the drawings, merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 above terms 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 of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rack mechanism, comprising:

a base including a guide groove;

the heat-resistant piece is arranged on the base, is partially embedded in the guide groove and is used for supporting the membrane and driving the membrane to move;

Wherein, in the depth direction of the guide groove, the sectional area of the guide groove is gradually reduced.

2. The bracket mechanism of claim 1, wherein the base further comprises a blind hole, the bracket mechanism further comprising:

the guide piece is arranged in the blind hole and comprises a guide inclined surface opposite to the side wall of the blind hole;

the guide inclined plane and the blind hole enclose the guide groove.

3. The bracket mechanism of claim 2, wherein the guide member is a land, and wherein a bottom surface of the land is connected to a bottom wall of the blind hole.

4. A support mechanism according to claim 3, wherein the guide is a hexagonal land.

5. The stand mechanism of claim 1, wherein,

the number of the guide grooves is N, and the N guide grooves are uniformly distributed on the base;

wherein N is an integer greater than 2.

6. The stand mechanism of claim 5, wherein the base is annular and the N guide grooves are uniformly distributed on the same circle with the axis of the base as an axis.

7. The bracket mechanism of claim 5, wherein the number of heat-resistant members is N, and N of the heat-resistant members are connected to N of the guide grooves in a one-to-one correspondence.

8. The bracket mechanism of any one of claims 1 to 7, wherein the heat shield comprises:

a body;

the convex ribs are arranged on the body and embedded in the guide grooves.

9. The bracket mechanism of claim 8, wherein the ribs are interference fit with the guide slots.

10. The bracket mechanism of any one of claims 1 to 7, wherein the heat shield is detachably connected to the base.

11. The bracket mechanism of any one of claims 1 to 7, further comprising:

and the connecting piece is connected with the base and the heat-resistant piece.

12. A valve cartridge assembly, comprising:

a support mechanism as claimed in any one of claims 1 to 11;

the diaphragm is arranged on the heat-resistant piece, and the heat-resistant piece is positioned between the base and the diaphragm.

13. The valve cartridge assembly of claim 12, further comprising:

the pressing piece is arranged on the diaphragm and is away from the heat-resistant piece, and the pressing piece is connected with the heat-resistant piece and is used for pressing the diaphragm on the heat-resistant piece.

14. A booster pump, comprising:

A housing including a cavity;

the valve cartridge assembly of claim 12 or 13, disposed within the cavity, the diaphragm being coupled to the housing, and the diaphragm separating the cavity.

15. The booster pump of claim 14 wherein the housing further comprises an inlet and an outlet in communication with the cavity of the diaphragm on a side facing away from the base, the booster pump further comprising:

and the driving assembly is connected with the base and used for driving the base to swing relative to the shell.

16. The booster pump of claim 15 wherein the drive assembly comprises:

a driving member including a driving shaft;

the eccentric wheel is sleeved on the driving shaft;

the inner ring of the bearing is sleeved on the eccentric wheel, and the outer ring of the bearing is arranged on the base in a penetrating manner.

17. A water purifier, comprising:

a booster pump as claimed in any one of claims 14 to 16.