CN213511176U

CN213511176U - Booster pump and have its purifier

Info

Publication number: CN213511176U
Application number: CN202022051184.8U
Authority: CN
Inventors: 高春超
Original assignee: Zhuichuang Technology Suzhou Co Ltd
Current assignee: Dreame Technology Suzhou Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-22
Anticipated expiration: 2030-09-18

Abstract

The application discloses booster pump and purifier for water purifier includes: a housing formed with a water source inlet and a water source outlet; the cylinder body is fixedly arranged in the shell, and a working cavity is formed in the cylinder body; a rotor disposed in the working chamber and capable of being driven to rotate around a rotation axis to pressurize an inflow water source; the rotating shaft is connected with the rotor and used for driving the rotor to rotate, and the rotating shaft is provided with a tail end extending out of the shell and used for combining power; the rotating shaft is supported on the shell by the supporting pieces, and the two supporting pieces are arranged between the rotating shaft and the shell at intervals along the axial direction. Therefore, the stability of the rotor support is improved, vibration and noise caused by unstable support and part abrasion are reduced, and the service life of the booster pump is further prolonged.

Description

Booster pump and have its purifier

Technical Field

The application relates to the technical field of water purifiers, in particular to a booster pump of a water purifier and the water purifier with the booster pump.

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 vane pump is widely applied to the water purifier due to the characteristics of uniform flow, high pressure, low noise and small volume. However, when the household water purifier is used for a long time, vibration and noise gradually increase, and the flow rate becomes small, the main reasons are that the rotor of the vane pump is supported by a single bearing, the pulsation is large during rotation, the abrasion of a graphite water cavity is aggravated, and the bearing point is few, and the concentricity of the rotor and the bearing capacity are insufficient due to the rotating structure of the conventional single bearing support.

SUMMERY OF THE UTILITY MODEL

To the shortcoming that exists in the above-mentioned technique, the application provides a support stable, booster pump that the noise of moving is low.

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

a booster pump for a water purifier includes:

a housing formed with a water source inlet and a water source outlet;

the cylinder body is fixedly arranged in the shell and internally provided with a working cavity;

a rotor disposed in the working chamber and capable of being driven to rotate about a rotation axis to pressurize an inflow water source;

the rotating shaft is connected with the rotor and used for driving the rotor to rotate, the rotating shaft is provided with a tail end extending out of the shell, and the tail end is used for combining power; also comprises

The support pieces are used for supporting the rotating shaft on the shell, and the two support pieces are arranged between the rotating shaft and the shell at intervals along the axial direction.

Preferably, in the axial direction, the two supporting members are both disposed on one side of the cylinder body near the end of the rotating shaft.

Preferably, the two supporting members are arranged side by side at intervals, and an elastic member for abutting against the two supporting members is arranged between the two supporting members so as to provide an elastic force for preventing the two supporting members from approaching each other.

Preferably, the support device further comprises a shell part which is wrapped outside the two support parts and is used for forming the two support parts into a whole.

Preferably, an elastic member for preventing the two supporting members from approaching each other is arranged in the shell portion, one end of the elastic member abuts against one of the supporting members, and the other end of the elastic member abuts against the other supporting member.

Preferably, the elastic element is a coil spring, and the coil spring is arranged along the axial direction and is used for being sleeved outside the rotating shaft.

Preferably, in the axial direction, the two supporting members are respectively disposed at both sides of the cylinder body.

Preferably, the cylinder body comprises a cylinder body side wall, and a front end cover and a rear end cover which are respectively arranged at two ends of the cylinder body side wall, and the cylinder body side wall, the front end cover and the rear end cover jointly define the working cavity;

the rotor is in clearance fit with the inner surfaces of the front end cover and the rear end cover.

Preferably, a sealing space for arranging a sealing structure is further formed in the housing, and the sealing space is located between the cylinder body and the tail end of the rotating shaft;

the sealing structure comprises a dynamic sealing element and a static sealing element, wherein the dynamic sealing element is synchronously and rotatably connected with the rotating shaft, the static sealing element is connected with the shell in a supporting mode, and the dynamic sealing element and the static sealing element are mutually abutted along the axial direction to form sealing contact.

The application also provides a water purifier, which comprises the booster pump in any embodiment.

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

the application provides a booster pump of purifier and have its purifier supports the pivot through two support piece support shafts that the interval set up, improves the stability that rotor and pivot supported, improves the part wearing and tearing, reduces the noise of motion, improves the life of booster pump.

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 perspective view of a booster pump of a water purifier according to the present application;

FIG. 2 is a schematic sectional view of the booster pump shown in FIG. 1;

FIG. 3 is a schematic view of a support structure of the booster pump shown in FIG. 2;

FIG. 4 is a schematic view of a seal arrangement of the booster pump shown in FIG. 2;

FIG. 5 is a schematic sectional view of a booster pump according to another embodiment of the present application.

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 4 show a power booster pump 1 provided in a first embodiment of the present application, including a housing 10, a cylinder, and a rotor disposed in the cylinder.

Wherein, the housing 31 is formed with a water source inlet for communicating with a water source, and a water source outlet for discharging the pressurized water. Specifically, the water source outlet is used for communicating with the water inlet pipe 12, the water source outlet is used for communicating with the water outlet pipe 14, the water inlet pipe 12 is used for communicating with a water source, an external water source flows into the water source inlet through the water inlet pipe 12, is pressurized by the rotor in the cylinder body, passes through the water source outlet, and is discharged from the water outlet pipe 14.

Referring to fig. 2, a cylinder is fixedly disposed in the housing 10, a working chamber is formed in the cylinder, and a rotor is disposed in the working chamber and can be driven to rotate around a rotation axis to pressurize an inflow water source. Specifically, the cylinder includes a cylinder sidewall 165, and a front cover 163 and a rear cover 161 respectively provided at both ends of the cylinder sidewall, the cylinder sidewall 165, the front cover 163, and the rear cover 161 together defining the working chamber. The cylinder sidewall 165 may be integrally formed with the front cover 163, and the other end of the cylinder sidewall is fixedly connected to the rear cover 161, or the cylinder sidewall 165 may be integrally formed with the rear cover 161, and the other end of the cylinder sidewall is fixedly connected to the front cover 163. 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 165, the front cover 163, and the rear cover 161 may be separately manufactured.

And the rotating shaft 15 is connected with the rotor and is used for driving the rotor to rotate. The rotary shaft 15 has an end protruding out of the housing 10 for coupling power. One end of the rotating shaft 15 is coupled with power and can be driven to rotate, so that the rotor is driven to rotate. In order to improve the stability of the rotor support, please refer to fig. 3, at least two supporting

members

191, 192 are disposed between the rotating shaft 15 and the housing 10, each supporting member is used for supporting the rotating shaft 15 on the housing 10, and the two supporting

members

191, 192 are disposed between the rotating shaft 15 and the housing 10 at intervals along the axial direction.

The utility model provides a booster pump supports between pivot and casing through adopting two at least spaced support piece to improve the stability that the rotor supported, reduce because vibrations and noise and the part wearing and tearing that the support is unstable to lead to, further improved booster pump's life.

In one embodiment, please refer to fig. 2, in the axial direction, the two supporting

members

191, 192 are disposed on one side of the cylinder body close to the rotating shaft 15 for combining power, specifically between the end of the combining power and the front cover 163 of the cylinder body. Further, in order to maintain the spacing distance between the two supporting

members

191, 192, a partition member is further included between the two supporting

members

191, 192, and the partition member 193 has elasticity to provide an elastic force for preventing the two supporting members from approaching each other, and therefore may be referred to as an elastic member 193, and one end of the elastic member 193 abuts against one of the supporting members 191, and the other end abuts against the other supporting member 192. Preferably, both of the

supports

191 and 192 are support bearings.

For simple assembly, further, a shell 195 is wrapped outside the two supporting

members

191, 192 for forming the two supporting

members

191, 192 into a whole, so that the shell 195 wraps and connects the two supporting

members

191, 192 into a whole and then is assembled on the rotating shaft 351, and the assembly structure is simple. Preferably, the elastic member 193 is also disposed in the shell portion 195, and the two supporting

members

191, 192, the elastic member 193 and the shell portion 195 are formed integrally.

In an embodiment, the elastic member 193 is a spring, specifically a coil spring, disposed along the axial direction and configured to be sleeved outside the rotating shaft 15.

Preferably, the rotor is a clearance fit with the inner surfaces of both the front end cap 163 and the rear end cap 161. Thus, during high speed rotation, the rotor has no frictional losses with both the front end cap 163 and the rear end cap 161. Of course, the rotor may contact the inner surfaces of the front cover 163 and the rear cover 161, but since the rotor is subjected to a torque during the entire rotation process, the rotor is in transition fit with the front cover 163 and the rear cover 161, and there is no friction loss after running in for a short time.

Since the rotation shaft 15 penetrates the front cover 163 and the rear cover 161, and since the front cover 163 and the rear cover 161 are fixedly disposed, the rotation shaft 15 rotates at a high speed during operation, and the rotation shaft 15 is in clearance fit with the assembly holes of the front cover 163 and the rear cover 161, water in the working chamber inevitably leaks out through the assembly clearance, and therefore, a sealing structure must be provided.

In one embodiment, referring to fig. 2 and 4, a sealed space 100 for disposing the sealing structure 18 is further formed in the housing 10. The end of the rotating shaft 15 extending out of the cylinder body and used for connecting driving power is defined as a driving connecting end, the sealing space 100 is located between the front end cover 163 and the driving connecting end, the rotating shaft 15 penetrates through the sealing space 100, the sealing structure 18 comprises a dynamic sealing element 181 synchronously and rotatably connected with the rotating shaft 15 and a static sealing element 182 in supporting connection with the shell 10, and the dynamic sealing element 181 and the static sealing element 182 are abutted against each other along the axial direction to form sealing contact. Specifically, the sealing structure 18 further includes a spring 186 and a guide sleeve 180 for abutting against the dynamic seal 181, and a support 184 for being disposed between the static seal 182 and the housing 20, and the static seal 182 is mounted on the housing 20 through the support 184. The spring 186 is sleeved on the guide sleeve 180, one end of the spring 186 abuts against a limit wall 188 of the sealing structure 18, and the other end abuts against the dynamic sealing element 181 and is used for applying pre-pressure to the dynamic sealing element 181 to enable the dynamic sealing element 181 to be tightly combined with the static sealing element 182, so that the reliability of sealing contact is ensured, and the risk of water leakage is reduced.

However, the dynamic seal 181 and the static seal 182 rotate relatively while abutting against each other, and therefore frictional heat is generated, which reduces the effective service life of the seals. In one embodiment, in order to ensure the service life of the sealing element, the front end cover 163 is opened with an opening communicating the working chamber and the sealing space 100, and the opening is used for supplying water to flow from the working chamber into the sealing space 100 to cool the dynamic sealing element 181 and the static sealing element 182. Thus, the heat of the sealing

elements

181 and 182 is dissipated by the water flow, so that the temperature rise of the sealing elements caused by friction is restrained, and the service life of the sealing elements is ensured.

Specifically, the booster pump 1 further includes a sealing cover plate 13 provided on one side of the rear end cover 161, and the sealing cover plate 13 is used to seal the rear end cover 161 of the booster chamber. So, both sides all seal the setting around the cylinder body, have prevented revealing of rivers.

Preferably, the inner diameter of the water source inlet is larger than that of the water source outlet, that is, the water inlet cross section of the water source inlet is larger than that of the water outlet cross section of the water source outlet, so that the water flow speed in the water source inlet is smaller than that in the water source outlet, thereby reducing the risk of unstable operation of the rotor caused by unstable water pressure in the pressurizing chamber, and further reducing the risk of generating order noise. In this particular embodiment, the inner diameter of inlet pipe 12 is greater than the inner diameter of outlet pipe 14.

In another embodiment, the difference between this embodiment and the above embodiments is only the arrangement structure of the supporting member, and the same structure uses the same reference numerals and is not repeated. In this embodiment, referring to fig. 5, the booster pump includes a housing 20, and a cylinder disposed within the housing 20, the cylinder including a front end cap 163, a rear end cap 161, and a cylinder sidewall 165 as in the previous embodiment. The cylinder further comprises a support member 21 and a support member 22 respectively arranged at two sides of the cylinder body, wherein the support member 21 and the support member 22 are arranged between the rotating shaft 15 and the shell 20 at intervals along the axial direction. Specifically, the rotating shaft 15 penetrates through the front cover 163 and the rear cover 161, the supporting member 21 is disposed at one end of the rotating shaft 15 extending out of the rear cover 161, and the supporting member 22 is disposed at one end of the rotating shaft 15 extending out of the front cover 163. The supporting

pieces

21 and 22 respectively support the rotating shaft 15 from two ends, so that the stability of supporting the rotating shaft is improved, and the rotating jitter of the rotating shaft and the rotor is reduced.

In a particular embodiment, the outer surface of the rotor and the inner surface of the cylinder define a pressurized chamber (not shown). The rotor further comprises a plurality of vanes 17, the plurality of vanes 17 being adapted to divide the pressurised chamber into a plurality of sub-chambers. During the rotation of the rotor, the plurality of blades 17 are driven to rotate synchronously, so that the plurality of sub-chambers rotate around the rotation axis, and the volume of the sub-chambers changes along with the rotation 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.

The application also provides a water purifier, which comprises the booster pump 1 provided by any embodiment.

To sum up, the booster pump that this application provided and the purifier that has it can improve the support stability of pivot, effectively reduces noise in operation and vibrations and mechanical friction loss.

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 booster pump for water purifier which characterized in that includes:

a housing formed with a water source inlet and a water source outlet;

2. The booster pump of claim 1, wherein both of the supports are provided on a side of the cylinder body near the end of the rotating shaft in an axial direction.

3. The booster pump of claim 2, wherein the two support members are spaced side by side, and an elastic member is disposed between the two support members for abutting against the two support members to provide an elastic force for preventing the two support members from approaching each other.

4. The booster pump of claim 3, further comprising a casing portion wrapped around the two support members for forming the two support members as a single body.

5. The booster pump of claim 4, wherein an elastic member is disposed in the casing for preventing the two supporting members from approaching each other, and one end of the elastic member abuts against one of the supporting members and the other end abuts against the other of the supporting members.

6. The booster pump as claimed in claim 3 or 4, wherein the elastic member is a coil spring disposed in an axial direction for being sleeved outside the rotation shaft.

7. The booster pump of claim 1, wherein the two supports are respectively provided on both sides of the cylinder in an axial direction.

8. The booster pump of claim 1, wherein the cylinder includes a cylinder sidewall and a front end cap and a rear end cap disposed at opposite ends of the cylinder sidewall, respectively, the cylinder sidewall, the front end cap, and the rear end cap collectively defining the working chamber;

9. The booster pump of claim 1, wherein a sealed space for providing a sealing structure is further formed in the housing, the sealed space being located between the cylinder block and the distal end of the rotating shaft;

10. A water purification machine comprising a booster pump as claimed in any one of claims 1 to 9.