CN111980915A

CN111980915A - Power supercharging mechanism of purifier and have its purifier

Info

Publication number: CN111980915A
Application number: CN202010987157.3A
Authority: CN
Inventors: 高春超
Original assignee: Zhuichuang Technology Suzhou Co Ltd
Current assignee: Zhuichuang Technology Suzhou Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2020-11-24

Abstract

The application discloses power booster mechanism and purifier of purifier includes: a housing; the cylinder body is fixedly arranged in the shell and comprises a cylinder body side wall, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are respectively arranged at two ends of the cylinder body side wall; a rotor disposed within the cylinder and capable of being driven to rotate about a rotational axis, a pressurization chamber being defined between an outer surface of the rotor and an inner surface of the cylinder, the pressurization chamber having a radial cross-sectional area that varies about the rotational axis; and a plurality of blades arranged at intervals in the circumferential direction of the rotor; and a vane pin for holding the vane against to apply a radially outward pre-stress thereto. The application provides a power booster mechanism has effectively reduced the pressurization noise, and has improved the volumetric efficiency.

Description

Power supercharging mechanism of purifier and have its purifier

Technical Field

The application relates to the technical field of water purifiers, and particularly relates to a power supercharging mechanism of a water purifier and the water purifier with the power supercharging mechanism.

Background

Along with the deepening of health concept of people, the requirement on drinking water safety is higher and higher, and the most common household healthy drinking water at present is to use the purifier. The purifier generally includes and is used for carrying out the power booster mechanism and the filter core that pressurize to the water source, and the water source is through power booster mechanism pressurization back, and the rethread filter core purifies and filters. However, the water purifier on the market generally adopts the diaphragm pump to pressurize, and the diaphragm pump is very noisy in the operation process, so that the water purifier has very loud sound when in use, and the experience is very bad.

Therefore, there is a need for a water purifier with improved noise.

Disclosure of Invention

To the weak point that exists in the above-mentioned technique, the utility model provides a power booster mechanism of purifier of low noise, low vibrations.

In order to solve the technical problem, the technical scheme adopted by the application is as follows:

a power boost mechanism of a water purifier, comprising:

the shell is provided with a water inlet channel for communicating a water source and a water outlet channel for discharging the pressurized water;

the cylinder body is fixedly arranged in the shell and comprises a cylinder body side wall, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are respectively arranged at two ends of the cylinder body side wall;

a rotor disposed within the cylinder to be drivable in rotation about an axis of rotation, a pressurization chamber being defined between an outer surface of the rotor and an inner surface of the cylinder, the pressurization chamber having a radial cross-sectional area that varies about the axis of rotation; and

a plurality of vanes provided at intervals in the circumferential direction of the rotor, each of the radially outer end edges of the vanes being in contact with the inner surface of the cylinder side wall to divide the pressurizing chamber into a plurality of sub-chambers, and the vanes being configured to be slidable relative to the rotor in the radial direction of the rotor;

the blade pin is used for abutting against the blade to apply radially outward pre-pressure to the blade, and comprises an elastic piece used for applying the pre-pressure to enable the radially outer end edge of the blade to be kept in contact with the inner surface of the side wall of the cylinder body.

Preferably, the blades are arranged in pairs, and each pair of the blades is symmetrically arranged in the circumferential direction of the rotor;

one blade pin is arranged between the pair of blades, one end of the blade pin abuts against the inner end edge of one of the pair of blades, and the other end of the blade pin abuts against the inner end edge of the other blade.

Preferably, the rotor is provided with a radial through hole, the blade pin is arranged in the through hole in a penetrating manner, and the blade pin has a variable length in the radial direction.

Preferably, the blade pin comprises a pin shell for accommodating the elastic piece and a pin head arranged at one end of the elastic piece, one end of the elastic piece abuts against the bottom of the pin shell, and the other end of the elastic piece abuts against the pin head;

the pin head is at least partially accommodated in the pin shell and can compress and release the elastic piece to slide relative to the pin shell under the action of external force.

Preferably, the device further comprises a rotating shaft connected with the rotor and used for driving the rotor to rotate, and at least two supporting pieces used for supporting the rotating shaft on the shell, wherein the two supporting pieces are arranged between the rotating shaft and the shell at intervals along the axial direction.

Preferably, the cylinder body further comprises a rotating shaft connected with the rotor and used for driving the rotor to rotate, and the rotating shaft comprises a driving connecting end extending out of the cylinder body and used for being connected with a driving motor;

the casing still is formed with the confined space who is used for setting up the sealing member in the casing, confined space is located the front end housing with between the drive link, the pivot runs through confined space, the sealing member include with the pivot rotate the dynamic seal piece of being connected in step and with the casing supports the static sealing member of being connected, dynamic seal piece with static sealing member supports each other along the axial direction and holds in order to form sealed contact.

Preferably, the front end cover is provided with an opening for communicating the pressurizing chamber with the sealed space, and the opening is used for supplying water flow from the pressurizing chamber into the sealed space to cool the dynamic seal and the static seal.

Preferably, the vibration isolation device further comprises a driving motor for driving the rotor, the driving motor is supported on the base, and a damping pad for isolating operation vibration of the driving motor is connected to the base.

Preferably, the cylinder body still including be used for with the front end housing the cylinder body lateral wall with the spacing locating pin of connecting of rear end cap, the front end housing the cylinder body lateral wall with the rear end cap all be provided with be used for with the spacing constant head tank of locating pin cooperation, the locating pin be used for with the constant head tank cooperation is in order to restrict the relative rotation of front end housing, cylinder body lateral wall with the rear end cap.

The application also provides a water purifier, which comprises the power supercharging mechanism in any one of the above embodiments.

Compared with the prior art, the application has the beneficial effects that:

according to the power supercharging mechanism of the water purifier and the water purifier with the power supercharging mechanism, one end of the blade is abutted by the blade pin, and radial outward pre-pressure is applied to the blade through the arranged elastic piece, so that the radial outer end edge of the blade is kept in contact with the inner surface of the side wall of the cylinder body, the risk of the blade moving in the radial direction is reduced, and noise and fluid disturbance noise caused by collision between the blade and the side wall of the cylinder body are avoided; meanwhile, the close fit of the blade and the side wall of the cylinder body is also ensured, the risk of water flow leakage of the adjacent sub working cavities is reduced, the volume efficiency of a pressurizing cavity is improved, and the water pumping efficiency of the power pressurizing mechanism is further improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic diagram of a power boost mechanism of a water purifier according to the present application;

FIG. 2 is an exploded schematic view of the power boost mechanism shown in FIG. 1;

FIG. 3 is a partially exploded schematic view of the power boost mechanism shown in FIG. 2;

FIG. 4 is a partially exploded schematic view of the power boost mechanism shown in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the pressurization mechanism of FIG. 2 taken through the spindle;

FIG. 6 is a schematic cross-sectional view of the booster mechanism of FIG. 2 at a position perpendicular to the axis of rotation;

FIG. 7 is a cross-sectional structural view of the blade pin of FIG. 4;

FIG. 8 is a schematic cross-sectional view of a power boost mechanism provided in accordance with another embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of the support structure of the power boost mechanism shown in FIG. 8;

fig. 10 is a schematic cross-sectional view of a power boost mechanism according to another embodiment provided herein.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Fig. 1 to 7 show a power supercharging mechanism 1 according to a first embodiment of the present application, which includes a housing 31, a cylinder disposed in the housing 31, and a rotor 351 disposed in the cylinder.

Wherein, the housing 31 is formed with a water inlet passage for communicating with a water source and a water outlet passage for discharging the pressurized water. Specifically, the water inlet channel is used for communicating with the water inlet pipe 32, the water outlet channel is used for communicating with the water outlet pipe 34, the water inlet pipe 32 is used for communicating with a water source, an external water source flows into the water inlet channel from the water inlet pipe 32, is pressurized by the rotor 351 in the cylinder body, passes through the water outlet channel, and is discharged from the water outlet pipe 34.

Referring to fig. 5, a cylinder is fixedly disposed in the housing 31 for forming a working space of the rotor 351. Specifically, the cylinder includes a cylinder side wall 361, and a front end cap 362 and a rear end cap 364 provided at both ends of the cylinder side wall, respectively. The cylinder sidewall 361 may be integrally formed with the front end cap 362, and the other end of the cylinder sidewall 361 is fixedly connected to the rear end cap 364, or the cylinder sidewall 361 may be integrally formed with the rear end cap 364, and the other end of the cylinder sidewall is fixedly connected to the front end cap 362. So, the cylinder body is only formed by two parts assembly, and connection structure is simpler reliable, and cylinder body structural strength is higher. Of course, the cylinder side wall 361, the front end cover 362 and the rear end cover 364 may be separately manufactured.

Referring to fig. 6, the rotor 351 is used for pressurizing water, and is disposed in the cylinder and can be driven to rotate around the rotation axis. A pressurizing chamber 350 is defined between the outer surface of the rotor 351 and the inner surface of the cylinder, the pressurizing chamber 350 having a radial cross-sectional area that varies about the rotational axis. Specifically, the inner contour of the cylinder side wall 361 in cross section is an eccentric cylinder, the outer surface of the rotor 351 is a substantially regular cylinder, the radial distance between the outer cylindrical surface of the rotor 351 and the inner contour of the cylinder side wall 361 varies around the rotation axis, and the formed pressurizing chamber 350 is a cylindrical space having a meniscus shape in cross section.

The rotor 351 is provided with a plurality of vanes 356, and the plurality of vanes 356 serve to partition the pressurizing chamber 350 into a plurality of sub-chambers. During rotation of the rotor 351, the plurality of vanes 356 are caused to rotate synchronously so that the plurality of sub-chambers rotate about the axis of rotation, the volume of the sub-chambers varying with the rotational position of the sub-chambers. The volume change of the sub-chamber has a pressurization change process from large to small and a water absorption change process from small to large, in the pressurization change process, the sub-chamber is communicated with the water outlet pipe 34 to pressurize the water in the sub-chamber, and then the water outlet pipe 34 is discharged; in the water absorption change process, the sub-chambers are communicated with the water inlet pipe 32, and negative pressure is formed in the sub-chambers and can absorb water.

Specifically, a plurality of vanes 356 are provided at intervals in the circumferential direction of the rotor 351, the radially outer end edge of each vane 356 is in contact with the inner surface of the cylinder side wall to divide the pressurizing chamber 350 into a plurality of sub-chambers, and the vanes 356 are configured to be slidable relative to the rotor 351 in the radial direction of the rotor 351.

Further, a blade pin 357 for holding the blade 356 is also included. Specifically, the vane pin is used to hold the vane 356 to apply a radially outward pre-stress thereto, and the vane pin 357 further includes an elastic member 3571, the elastic member 3571 being used to apply a radially outward pre-stress to the vane 356 to keep the radially outer end edge of the vane 356 in contact with the inner surface of the cylinder sidewall.

According to the power supercharging mechanism, on one hand, the outer end edge of the blade is tightly attached to the inner surface of the side wall of the cylinder body, the risk of water flow leakage of adjacent sub-working cavities is reduced, the volume efficiency of a pressurization cavity is improved, and the water pumping efficiency of the power supercharging mechanism is further improved; on the other hand, the radial outer end edge of the blade is kept in contact with the inner surface of the side wall of the cylinder body, the risk of the blade moving in the radial direction is reduced, noise generated due to collision of the blade and the side wall of the cylinder body is avoided, and fluid noise caused by fluid exchange due to poor isolation of adjacent sub-chambers is avoided.

Preferably, the inner diameter of the water inlet channel is larger than the inner diameter of the water outlet channel, that is, the water inlet cross section of the water inlet channel is larger than the water outlet cross section of the water outlet channel, so that the water flow speed in the water inlet channel is smaller than that in the water outlet channel, thereby reducing the risk of unstable operation of the rotor caused by unstable water pressure in the pressurizing chamber 350, and further reducing the risk of generation of order noise.

Preferably, in order to maintain the mass balance of the rotor 351 and the rotating body formed by the blades 356, the blades 356 are arranged in pairs, and each pair of the blades 356 is symmetrically arranged in the circumferential direction of the rotor 351. Referring to fig. 6, preferably, each pair of blades 356 may be symmetrically disposed about the center of rotation, i.e., each pair of blades 356 is symmetrically disposed about the center of rotation by 180 °. A vane pin 357 is disposed between the pair of vanes 356, one end of the vane pin 357 abuts against an inner end edge of one of the vanes 356 of the pair of vanes 356, and the other end of the vane pin 357 abuts against an inner end edge of the other of the vanes 356. Namely, two ends of one vane pin respectively abut against the inner end edges of two vanes in a pair of vanes, so that the outer end edges of the two vanes are kept in close contact with the inner surface of the side wall of the cylinder body.

Specifically, a generally radial slot is formed about the outer surface of the rotor 351, in which a plurality of vanes 356 are received, each vane sliding within the slot relative to the rotor 351.

In the present embodiment, the vanes 356 comprise 2, i.e., the number of vanes is 4. Of course, in other embodiments, the number of the blades 356 may be 3, i.e., the number of the blades is 6.

Further, the rotor 351 is provided with a radial through hole, and the blade pin 357 is disposed through the through hole. That is, the vane pin 357 extends in a radial direction through the rotation center, and thus, the vane pin 357 has a substantially balanced mass with respect to the rotation center, and rotational jitter is smaller. The vane pin 357 has a variable length in the radial direction, and specifically, the vane pin 357 has a tendency of being lengthened by the elastic member 3571, so that the whole formed by the vane pin 357 and the pair of the vanes held thereby is always in contact with the inner surface of the cylinder sidewall in the radial direction, thereby effectively isolating the sub-working chambers.

In one embodiment, referring to fig. 7, the blade pin 357 includes a pin housing 3573 accommodating a resilient member 3571, and a pin head 3572 disposed at one end of the resilient member 3571, wherein one end of the resilient member 3571 abuts against the bottom of the pin housing 3573 and the other end abuts against the pin head 3572. The pin head 3572 is at least partially received in the pin housing 3573 and is capable of compressing and releasing the resilient member 3571 to slide relative to the pin housing 3573 under an external force, such that the length of the blade pin 357 has an extension or contraction following the sliding of the pin head 3572.

In another embodiment, the blade pin comprises pin heads which are arranged at two ends of the pin shell and penetrate through the pin shell, the elastic piece is arranged in the pin shell, one end of the elastic piece is abutted against one of the pin heads, the other end of the elastic piece is abutted against the other of the pin heads, the two pin heads are at least partially accommodated in the pin shell and can compress and release the elastic piece to slide relative to the pin shell under the action of external force, and therefore the length of the blade pin in the radial direction is variable. The two pin heads of the blade pin are symmetrically arranged, so that the mass of the blade pin is symmetrically arranged about the center of the blade pin, and the rotation shake caused by the mass unbalance of the blade pin is reduced.

Further, referring to fig. 1 and 2, the power supercharging mechanism further includes a driving motor 50 for driving the rotor 351, the driving motor 50 is supported on a base 60, and a shock pad 62 for isolating operation vibration of the driving motor 50 is connected to the base 60. Specifically, the shock absorbing pad 62 includes a plurality of shock absorbing pads 62, and each shock absorbing pad 62 is supported under the base 60 and is disposed on the base 60 at regular intervals for isolating shock between the base 60 and a component for mounting the base.

Since the rotation shaft 352 penetrates the front and

rear covers

362 and 364, and since the front and

rear covers

362 and 364 are fixedly disposed, the rotation shaft 352 rotates at a high speed during operation, and the rotation shaft 352 is in clearance fit with the fitting holes of the front and

rear covers

362 and 364, water in the pressurizing chamber 350 inevitably leaks out through the fitting clearance, and thus a sealing structure must be provided.

In one embodiment, referring to fig. 5, a sealing space 301 for disposing a sealing member is further formed in the housing 31. The end of the rotating shaft 352 extending out of the cylinder and used for connecting the driving motor 50 is defined as a driving connecting end, the sealed space 301 is located between the front end cover 362 and the driving connecting end, the rotating shaft 352 penetrates through the sealed space 301, the sealing element comprises a dynamic sealing element 302 which is synchronously and rotatably connected with the rotating shaft 352 and a static sealing element 303 which is in supporting connection with the shell 31, and the dynamic sealing element 302 and the static sealing element 303 are mutually abutted along the axial direction to form sealing contact. Specifically, a spring for abutting against the dynamic sealing element 302 is further arranged in the sealed space 301, and one end of the spring abuts against the dynamic sealing element 302 for applying pre-pressure to the dynamic sealing element 302 to enable the dynamic sealing element to be tightly combined with the static sealing element 303, so that the reliability of sealing contact is ensured, and the risk of water leakage is reduced.

However, the dynamic seal 302 and the static seal 303 rotate relative to each other while abutting against each other, and therefore frictional heat is generated, which reduces the effective service life of the seals. In an embodiment, referring to fig. 4, in order to ensure the service life of the sealing element, an opening 3620 is formed on the front end cover 362 to communicate the pressurizing chamber 350 with the sealed space 301, and the opening 3620 is used for supplying water to flow from the pressurizing chamber 350 into the sealed space 301 to cool the dynamic sealing element 302 and the static sealing element 303. Therefore, the heat dissipation of the sealing element is realized by utilizing water flow, the temperature rise of the sealing element caused by friction is restrained, and the service life of the sealing element is ensured.

Since the cylinder is fixedly assembled in the housing 31, the assembling efficiency is improved. In an embodiment, referring to fig. 4, the cylinder further includes a positioning pin 368 for limiting and connecting the front end cover 362, the cylinder side wall 361 and the rear end cover 364, the front end cover 362, the cylinder side wall 361 and the rear end cover 364 are respectively provided with a positioning slot for matching and limiting with the positioning pin 368, and the positioning pin 368 is used for matching with the positioning slot to limit the relative rotation of the front end cover 362, the cylinder side wall 361 and the rear end cover 364.

The power supercharging mechanism further comprises a rotating shaft 352 connected with the rotor 351 and used for driving the rotor 351 to rotate, wherein one end of the rotating shaft 352 is used for driving the rotor to rotate, and the other end of the rotating shaft 352 is used for being connected with power, so that the rotating shaft 352 is driven by the power to further drive the rotor to rotate. Preferably, the rotation shaft 352 is an integral support with the rotor 251.

In order to improve the support stability of the rotor and the rotating shaft, the shaking risk caused by unstable support is reduced. In a preferred embodiment, referring to fig. 8 and 9, the power supercharging mechanism further includes at least two supporting

members

91, 93 for supporting the rotating shaft 352 on the housing 10, and the two supporting

members

91, 93 are disposed between the rotating shaft 352 and the housing 31 at intervals along the axial direction, so as to increase the supporting length for supporting the rotating shaft 352 and increase the stability of the supporting of the rotating shaft. In this embodiment, the two supporting

members

91, 93 are both disposed on the same side of the cylinder body, specifically, on the side near the power connection of the rotating shaft. Furthermore, in order to maintain the spacing distance between the two supporting

members

91 and 93, a partition member is further included, which is disposed between the two supporting members 91 and has elasticity, one end of which abuts against one of the supporting members 91, and the other end of which abuts against the other supporting member 93. Specifically, the support 91 is a support bearing, and the spacer is a spring.

In the above embodiment, for the sake of simple assembly, the case 94 is wrapped outside the two supporting

members

91 and 93 for forming the two supporting

members

91 and 93 into a whole, and the partition is disposed in the case 94, so that the case 94, the two supporting

members

91 and 93 and the partition are connected into a whole and then assembled to the rotating shaft 351, and the assembly structure is simple.

In another embodiment, referring to fig. 10, the power supercharging mechanism includes a support member 11 and a support member 12 respectively disposed at both sides of the cylinder, and the

support members

11 and 12 are disposed at intervals in the axial direction between the rotating shaft 352 and the housing 31. Specifically, the rotating shaft 352 penetrates through the front cover 362 and the rear cover 364, the supporting member 11 is disposed at an end of the rotating shaft 352 extending out of the rear cover 364, and the supporting member 12 is disposed at an end of the rotating shaft 352 extending out of the front cover 362. The support member 11 and the support member 12 support the rotating shaft 351 from both ends, respectively, so that the stability of the supporting of the rotating shaft is improved, and the shaking of the rotation of the rotating shaft is reduced.

To sum up, the power booster mechanism that this application provided and the purifier that has it can effectively reduce the noise of operation, improves man-machine experience.

The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all modifications, equivalents, and equivalent structures or equivalent processes that can be used directly or indirectly in other related fields of technology shall be encompassed by the present invention.

Claims

1. The utility model provides a power booster mechanism of purifier which characterized in that includes:

2. The power boost mechanism of claim 1, wherein said vanes are arranged in pairs, each pair of said vanes being symmetrically disposed in a circumferential direction of said rotor;

3. The power supercharging mechanism according to claim 2, wherein the rotor is provided with a radial through hole, the vane pin is provided through the through hole, and the vane pin has a variable length in a radial direction.

4. The power boost mechanism of claim 3, wherein said vane pin includes a pin housing receiving said spring member and a pin head disposed at one end of said spring member, said spring member having one end abutting against a bottom of said pin housing and the other end abutting against said pin head;

5. The power booster mechanism of claim 1 further comprising a shaft coupled to the rotor for rotating the rotor, and at least two supports for supporting the shaft on the housing, the two supports being spaced apart in an axial direction between the shaft and the housing.

6. The power booster mechanism of claim 1 further comprising a shaft coupled to the rotor for rotation of the rotor, the shaft including a drive connection end extending out of the cylinder for connection to a drive motor;

7. The power boost mechanism of claim 6,

the front end cover is provided with an opening communicated with the pressurizing chamber and the sealed space, and the opening is used for supplying water flow to the sealed space from the pressurizing chamber so as to cool the dynamic sealing element and the static sealing element.

8. The power booster mechanism of claim 1 further comprising a drive motor for driving the rotor, the drive motor being supported on a base to which is attached a shock pad for isolating operational vibrations of the drive motor.

9. The power boost mechanism of claim 1, wherein said cylinder block further comprises a locating pin for captively connecting said front end cap, said cylinder block side wall and said rear end cap, said front end cap, said cylinder block side wall and said rear end cap each being provided with a locating slot for captively cooperating with said locating pin, said locating pin for cooperating with said locating slot to limit relative rotation of said front end cap, said cylinder block side wall and said rear end cap.

10. A water purification machine comprising a power boost mechanism as claimed in any one of claims 1 to 9.