CN217271019U

CN217271019U - Pump cover assembly of pump machine, pump machine and sterilizing machine

Info

Publication number: CN217271019U
Application number: CN202221039735.1U
Authority: CN
Inventors: 郝福刚; 朱华; 李松; 梁卓文; 李超雄
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-23
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a pump cover subassembly, pump machine and sterilizing machine of pump machine, the pump cover subassembly of this pump machine includes: the pump cover main body is provided with a cleaning solution inlet; the mounting shaft is arranged in the pump cover main body, a liquid passing channel is arranged on the mounting shaft, the liquid passing channel is provided with an inlet hole and an outlet hole, the inlet hole is arranged corresponding to the cleaning liquid inlet, and the outlet hole is arranged on the side wall of the mounting shaft; the impeller is rotationally connected to the mounting shaft, and a gap is formed between the impeller and the side wall of the mounting shaft; the liquid supply assembly is communicated with the cleaning liquid inlet and is used for introducing cleaning liquid into the liquid passing channel so as to enable the cleaning liquid to wash the gap. The utility model discloses an installation axle among the pump cover subassembly of pump machine and impeller can not appear remaining because of solution and leading to storing up crystallization thing or impurity, and then the dead problem of card appears.

Description

Pump cover assembly of pump machine, pump machine and sterilizing machine

Technical Field

The utility model belongs to the technical field of the pump machine technique and specifically relates to a pump cover subassembly, pump machine and sterilizing machine of pump machine are related to.

Background

In the related art, in some types of pumps, the impeller is mounted in the pump cover through the shaft, but in such pumps, because a gap exists between the impeller and the shaft during the liquid delivery process of the pump, when the pump cover is used up by the delivered liquid, a certain amount of liquid remains in the gap between the impeller and the shaft, and crystals or impurities can appear in the gap.

For example, when the liquid conveyed by the pump is disinfectant, because the disinfectant is generally a solution containing hypochlorous acid, an oxide film is generated on the surface of the metal shaft due to the hypochlorous acid, and the difference between the lattice of the oxide film and the lattice of the metal surface is large, so as to be beneficial to crystallization; the impeller is of a plastic structure, and the surface of the shaft hole has defects so as to be beneficial to salt crystallization, but the problem of clamping between the impeller and the shaft is caused after long-time accumulation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a pump cover subassembly of pump machine to it leads to storing up crystallization thing or impurity because of solution remains between impeller and the axle among the prior art to solve, and then appears the dead problem of card.

The utility model discloses still aim at providing a pump machine to use the pump cover subassembly of above-mentioned pump machine.

The utility model discloses still aim at providing a sterilizing machine to use foretell pump machine.

According to the utility model discloses pump cover subassembly of pump machine, include: the pump cover main body is provided with a cleaning liquid inlet; the mounting shaft is arranged in the pump cover main body, a liquid passing channel is arranged on the mounting shaft, the liquid passing channel is provided with an inlet hole and an outlet hole, the inlet hole is arranged corresponding to the cleaning liquid inlet, and the outlet hole is arranged on the side wall of the mounting shaft; the impeller is rotationally connected to the mounting shaft, and a gap is formed between the impeller and the side wall of the mounting shaft; and the liquid supply assembly is communicated with the cleaning liquid inlet and is used for introducing cleaning liquid into the liquid passing channel so as to enable the cleaning liquid to wash the gap.

According to the utility model discloses pump cover subassembly of pump machine, through the liquid passageway of crossing that has inlet hole and portal at the installation epaxial being equipped with, the washing liquid import that is equipped with in inlet hole and the pump cover main part is corresponding, it then establishes on the lateral wall of installation axle to portal, impeller and installation axle clearance connection, can make the impeller rotate at the installation epaxial, liquid supply subassembly and washing liquid import are linked together, the washing liquid that liquid supply subassembly provided flows in the inlet hole of liquid passageway through the washing liquid entry, then flow in the clearance between impeller and the installation axle from the portal of crossing liquid passageway, lead to storing up crystallization thing or impurity because of solution remains between washing impeller and installation axle clearance, prevent that dead phenomenon of card from appearing in impeller and installation axle.

In some embodiments, the liquid passing channel is a plurality of liquid passing channels, and the plurality of liquid passing channels are circumferentially arranged around the axial direction of the mounting shaft.

In some embodiments, each of the liquid passing channels is provided with a plurality of outlet holes, and the outlet holes are spaced apart along the axial direction of the mounting shaft.

In some embodiments, a shaft mounting groove is formed in the pump cover main body, the cleaning solution inlet is formed in the bottom wall of the shaft mounting groove, and the mounting shaft is arranged in the shaft mounting groove.

In some embodiments, the pump cover main body is provided with a plurality of liquid inlets, the liquid inlets are used for being connected with liquid conveyed by a pump, and the liquid inlets are arranged at intervals around the circumference of the cleaning liquid inlet.

In some embodiments, the pump cover main body is provided with a pipe mounting hole, the cleaning liquid inlet and the pipe mounting hole are coaxially arranged round holes, the diameter of the pipe mounting hole is larger than that of the cleaning liquid inlet, and the liquid supply assembly is partially arranged in the pipe mounting hole.

In some embodiments, the liquid supply assembly comprises: the liquid supply pipe is sleeved in the pipe mounting hole; the liquid supply pump is used for conveying cleaning liquid into the liquid supply pipe; and the switch piece is arranged between the liquid supply pipe and the liquid supply pump and controls the on-off of the liquid supply pipe.

According to the utility model discloses pump machine, include: the pump shell is internally provided with an accommodating space; the driving piece is arranged in the accommodating space; the pump cover assembly is the pump cover assembly, and the pump cover main part is established on the pump case and closed accommodation space.

In some embodiments, the driving member includes a driving magnetic ring, and the impeller is provided with a driven magnetic ring, and the driving magnetic ring is configured to drive the driven magnetic ring to rotate.

According to the utility model discloses sterilizer, including foretell pump machine, the pump machine is used for carrying the antiseptic solution.

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

Drawings

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

fig. 1 is a cross-sectional view showing the internal structure of a pump cover assembly of a pump according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion I of FIG. 1 in accordance with the present invention;

FIG. 3 is an exploded view of a pump cover assembly of an embodiment of the pump;

fig. 4 is a schematic structural view of the mounting shaft in the embodiment of the present invention;

fig. 5 is a cross-sectional view taken along a-a of fig. 4 in accordance with the present invention;

fig. 6 is a schematic structural view of the pump cover main body of the present invention;

figure 7 is a cross-sectional view taken along a-a of figure 6 in accordance with the present invention;

fig. 8 is a sectional view of the internal structure of the pump in the embodiment of the present invention.

Reference numerals:

100. a pump cover assembly;

10. a pump cover main body; 101. a cleaning fluid inlet; 102. a shaft mounting groove; 103. a liquid inlet; 104. a tube mounting hole;

20. installing a shaft; 201. a liquid passing channel; 2011. entering a hole; 2012. an outlet hole;

30. an impeller; 301. a driven magnetic ring;

40. a liquid supply assembly; 401. a liquid supply tube; 402. a liquid supply pump; 403. a switch member;

1000. a pump machine;

200. a pump housing; 2001. an accommodating space; 202. a drive member; 2003. drive the magnetic ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1 to 8, a pump cover assembly 100 of a pump machine according to an embodiment of the present invention will be described.

As shown in fig. 1, according to the utility model discloses pump cover assembly 100 of pump machine includes: the pump cap body 10, the mounting shaft 20, the impeller 30, and the liquid supply assembly 40.

A cleaning liquid inlet 101 is formed in the pump cover main body 10; the mounting shaft 20 is arranged in the pump cover main body 10, the mounting shaft 20 is provided with a liquid passing channel 201, the liquid passing channel 201 is provided with an inlet 2011 and an outlet 2012, the inlet 2011 is arranged corresponding to the cleaning liquid inlet 101, and the outlet 2012 is arranged on the side wall of the mounting shaft 20; the impeller 30 is rotatably connected to the mounting shaft 20, and a gap is formed between the impeller and the side wall of the mounting shaft 20; the liquid supply assembly 40 is communicated with the cleaning liquid inlet 101 to feed cleaning liquid into the liquid passing channel 201 so that the cleaning liquid can wash the gap.

It can be understood that, in view of the problem that crystals or impurities may be accumulated in the gap between the impeller 30 and the side wall of the mounting shaft 20 for a long time, the liquid supply assembly 40 can deliver the cleaning liquid from the cleaning liquid inlet 101 to the inlet 2011, then enter the liquid channel 201, and then flow into the gap between the impeller 30 and the side wall of the mounting shaft 20 through the outlet 2012, so as to achieve the purpose of removing the crystals or impurities by washing or reacting with the crystals.

For example, when the liquid conveyed by the pump is the disinfectant, since the mounting shaft 20 is generally a metal shaft, the impeller 30 is generally a plastic structure, and the disinfectant is mostly a hypochlorous acid solution, when the hypochlorous acid solution in the pump cover body 10 is used up, the liquid supply assembly 40 can pump the clear water into the liquid passing channel 201, so as to flush and discharge the disinfectant in the gap between the impeller 30 and the mounting shaft 20 in time, thereby avoiding the problem of salt crystallization. Of course, the cleaning solution pumped by the liquid supply assembly 40 is not limited to clean water, but may be a reaction solution that reacts with the disinfectant solution, which also can solve the problem of removing the disinfectant.

According to the utility model discloses pump cover subassembly 100 of pump machine, through be equipped with the liquid passageway 201 of crossing that has inlet 2011 and go out 2012 on installation axle 20, go out 2012 and establish on the lateral wall of installation axle 20 to set up and supply liquid subassembly 40 to carry the washing liquid in washing liquid import 101, can wash the crystallization thing or the impurity in clearance between impeller 30 and the installation axle 20, thereby prevent to appear the dead phenomenon of card between impeller 30 and the installation axle 20, make impeller 30 can stabilize good rotation around installation axle 20.

In some embodiments, as shown in fig. 4 and 5, the liquid passing channel 201 is multiple, and the multiple liquid passing channels 201 are arranged circumferentially around the axial direction of the mounting shaft 20. That is, the plurality of liquid passing passages 201 may increase the inflow amount of the cleaning liquid to flow the cleaning liquid into the gap between the impeller 30 and the mounting shaft 20 more rapidly, while the liquid passing passages 201 are circumferentially arranged around the axial direction of the mounting shaft 20 to clean the gap between the mounting shaft 20 and the impeller 30 more thoroughly of crystals or impurities.

In some embodiments, as shown in fig. 4 and 5, each liquid passing channel 201 is provided with a plurality of outlet holes 2012, and the plurality of outlet holes 2012 are spaced apart along the axial direction of the mounting shaft 20 and are disposed on the outer circumferential wall of the mounting shaft 20. The liquid passing channel 201 is provided with the outlet holes 2012, so that the cleaning liquid can rapidly flow into the gap between the impeller 30 and the mounting shaft 20 from the liquid passing channel 201, the discharge efficiency is improved, meanwhile, the outlet holes 2012 are arranged at intervals along the axial direction of the mounting shaft 20, the cleaning liquid can be discharged at a plurality of positions, crystals or impurities in the gap between the impeller 30 and the mounting shaft 20 can be better cleaned, and dead angles are prevented.

In some embodiments, as shown in fig. 1 and 2, the pump cap main body 10 is provided with a shaft mounting groove 102, the cleaning solution inlet 101 is provided on the bottom wall of the shaft mounting groove 102, and the mounting shaft 20 is provided in the shaft mounting groove 102. The pump cover body 10 has a space, i.e., a shaft mounting groove 102, therein, which can be used to place the mounting shaft 20 and the impeller 30, and the impeller 30 can rotate around the mounting shaft 20 in the shaft mounting groove 102; in addition, the shaft installation groove 102 can also collect the liquid flowing in from the cleaning liquid inlet 101 and guide it to the outlet of the pump cap body 10.

In some embodiments, as shown in fig. 6, the pump cap body 10 is provided with a plurality of liquid inlets 103, the liquid inlets 103 are used for receiving liquid delivered by the pump, and the plurality of liquid inlets 103 are circumferentially spaced around the cleaning liquid inlet 101. When the pump extracts the disinfectant, the disinfectant enters the pump cover main body 10 through the liquid inlets 103, when crystals or impurities appear in a gap between the impeller 30 and the mounting shaft 20, the liquid supply assembly 40 supplies cleaning liquid to flow into the gap between the cleaning liquid inlet 101 and the mounting shaft to clean the crystals or the impurities, and the liquid inlets 103 are arranged at intervals around the circumference of the cleaning liquid inlet 101, so that the inflow of the disinfectant is ensured to be as large as possible, and the cleaning liquid can flow into the cleaning liquid inlet 101 when accumulated salt is cleaned.

In some embodiments, as shown in fig. 7, the pump cap body 10 is provided with a pipe mounting hole 104, the cleaning liquid inlet 101 and the pipe mounting hole 104 are coaxially arranged circular holes, the diameter of the pipe mounting hole 104 is larger than that of the cleaning liquid inlet 101, and the liquid supply assembly 40 is partially disposed in the pipe mounting hole 104. When the cleaning liquid flows into the cleaning liquid inlet 101 from the liquid supply assembly 40, the diameter of the pipe mounting hole 104 is larger than that of the cleaning liquid inlet 101, so that the cleaning liquid can flow into the cleaning liquid inlet 101 more smoothly, the liquid supply assembly 40 can abut against the cleaning liquid inlet 101, and the whole structure is more stable.

In some embodiments, as shown in FIGS. 1 and 3, the liquid supply assembly 40 includes a liquid supply tube 401, a liquid supply pump 402, and a switch member 403, the liquid supply tube 401 being received within the tube receiving bore 104; the liquid supply pump 402 is configured to supply a cleaning liquid into the liquid supply tube 401; the switch 403 is provided between the liquid supply tube 401 and the liquid supply pump 402, and the switch 403 controls the opening and closing of the liquid supply tube 401. It can be understood that, when crystal or impurities in the gap between the impeller 30 and the mounting shaft 20 need to be cleaned, the switch 403 is turned on by receiving a corresponding control signal, the liquid supply pump 402 can pump the cleaning liquid into the liquid supply pipe 401, and the cleaning liquid can further flow into the cleaning liquid inlet 101 from the liquid supply pipe 401; after the cleaning is completed, the switch 403 is closed, so that the pump can normally perform the operation of delivering the disinfectant.

Specifically, the liquid supply tube 401 may be a connection hose, the liquid supply pump 402 may be a water pump, and the switch 403 may be a solenoid valve. The suction pump extracts the clear water, and the solenoid valve is opened, and the clear water flows into the installation axle 20 along connecting hose after passing through the solenoid valve, is equipped with the exit 2012 of clear water on the installation axle 20, thereby clear water flows into the clearance between installation axle 20 and the impeller 30, washes long-pending salt or other impurity in the clearance, and the clear water can also prevent from going out of exit 2012 and stopping up, guarantees the good operation of whole device.

A specific embodiment of the pump cap assembly 100 of the pump according to the present invention will be described with reference to the drawings.

As shown in fig. 1 and 2, the pump cover assembly 100 of the pump includes: the pump cap body 10, the mounting shaft 20, the impeller 30, and the liquid supply assembly 40.

A cleaning liquid inlet 101 is formed in the pump cover main body 10; the pump is a water pump, the pump cover main body 10 is a volute, the mounting shaft 20 is arranged in the pump cover main body 10, the mounting shaft 20 is provided with a liquid passing channel 201, the liquid passing channel 201 is provided with an inlet 2011 and an outlet 2012, the inlet 2011 is arranged corresponding to the cleaning liquid inlet 101, and the outlet 2012 is arranged on the side wall of the mounting shaft 20; the impeller 30 is rotatably connected to the mounting shaft 20, and a gap is formed between the impeller and the side wall of the mounting shaft 20; the liquid supply assembly 40 is communicated with the cleaning liquid inlet 101, and the cleaning liquid is clean water, so that the cleaning liquid is introduced into the liquid passing channel 201 to wash the gap.

The number of the liquid passing channels 201 is six, and the six liquid passing channels 201 are circumferentially arranged around the axial direction of the mounting shaft 20.

Five outlet holes 2012 are formed in each liquid passing channel 201, and the five outlet holes 2012 are spaced apart in the axial direction of the mounting shaft 20.

The pump cover main body 10 is provided with a shaft mounting groove 102, a cleaning liquid inlet 101 is provided on the bottom wall of the shaft mounting groove 102, and a mounting shaft 20 is provided in the shaft mounting groove 102.

The pump cover main body 10 is provided with three liquid inlets 103, the liquid inlets 103 are used for being connected with liquid conveyed by the pump, the liquid can be disinfectant, and the three liquid inlets 103 are circumferentially spaced around the cleaning liquid inlet 101.

The pump cover main body 10 is provided with a pipe mounting hole 104, the cleaning liquid inlet 101 and the pipe mounting hole 104 are coaxially arranged round holes, the diameter of the pipe mounting hole 104 is larger than that of the cleaning liquid inlet 101, and the liquid supply assembly 40 is partially arranged in the pipe mounting hole 104.

The liquid supply assembly 40 comprises a liquid supply pipe 401, a liquid supply pump 402 and a switch member 403, wherein the liquid supply pipe 401 is a connecting hose, the liquid supply pump 402 is a water pump, the switch member 403 is an electromagnetic valve, and the liquid supply pipe 401 is sleeved in the pipe mounting hole 104; the liquid supply pump 402 is configured to supply a cleaning liquid into the liquid supply tube 401; the switch 403 is provided between the liquid supply tube 401 and the liquid supply pump 402, and the switch 403 is electrically connected to the liquid supply pump 402 to control the start or stop of the liquid supply pump 402.

As shown in fig. 8, a pump 1000 according to an embodiment of the present invention includes a pump housing 200, a driving member 202, and a pump cover assembly 100.

A housing space 2001 is provided in the pump housing 200; the driving member 202 is arranged in the accommodating space 2001; the driving member 202 may be a motor, and the motor is connected to the impeller 30 in the pump cover assembly 100 to drive the impeller 30 to rotate, the pump cover assembly 100 is the pump cover assembly 100, and the pump cover main body 10 is disposed on the pump case 200 and closes the accommodating space 2001.

According to the utility model discloses pump machine 1000 can wash the crystallization thing or the impurity in clearance between impeller 30 and the installation axle 20 through setting up this pump cover subassembly 100 to avoid appearing the dead phenomenon of card between impeller 30 in the pump machine 1000 and the installation axle 20, prolong pump machine 1000's life-span, improve whole quality.

In some embodiments, the driving member 202 includes a driving magnetic ring 2003, and the impeller 30 is provided with a driven magnetic ring 301, where the driving magnetic ring 2003 is used for driving the driven magnetic ring 301 to rotate. The driving magnetic ring 2003 and the driven magnetic ring 301 are matched to drive the impeller 30 to rotate, so that magnetic force transmission power is realized, the pump and the motor can be partially isolated, the motor is prevented from being excessively contacted with the conveyed liquid, and the special requirement of corrosion resistance is met.

The disinfection machine of the embodiment of the utility model comprises the pump 1000.

The pump 1000 is used for conveying disinfectant, disinfectant circulation in the sterilizer is realized, and crystals or impurities can be prevented from appearing between the impeller 30 and the mounting shaft 20 after the sterilizer conveys the disinfectant for many times through the pump 1000, so that the phenomenon of blocking is avoided, and the stable and reliable operation of the sterilizer is ensured.

According to the utility model discloses disinfection machine through setting up this pump machine 1000 and can avoid long-time during operation impeller 30 and the long-term accumulated salt that appears between the installation axle 20, can reduce maintenance cycle, the cost of using manpower sparingly.

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

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pump cover assembly of a pump machine, comprising:

the pump cover main body is provided with a cleaning liquid inlet;

the mounting shaft is arranged in the pump cover main body, a liquid passing channel is arranged on the mounting shaft, the liquid passing channel is provided with an inlet hole and an outlet hole, the inlet hole is arranged corresponding to the cleaning liquid inlet, and the outlet hole is arranged on the side wall of the mounting shaft;

the impeller is rotationally connected to the mounting shaft, and a gap is formed between the impeller and the side wall of the mounting shaft;

and the liquid supply assembly is communicated with the cleaning liquid inlet and is used for introducing cleaning liquid into the liquid passing channel so as to enable the cleaning liquid to wash the gap.

2. A pump cap assembly according to claim 1, wherein said flow passage is plural and is circumferentially arranged about an axial direction of said mounting shaft.

3. A pump cover assembly according to claim 2, wherein a plurality of said outlet holes are provided in each of said liquid passing channels, said outlet holes being spaced apart in an axial direction of said mounting shaft.

4. A pump cap assembly of a pump according to claim 1, wherein the pump cap body is provided with a shaft mounting slot, the cleaning solution inlet is provided on a bottom wall of the shaft mounting slot, and the mounting shaft is provided in the shaft mounting slot.

5. A pump cover assembly of a pump according to claim 4, wherein the pump cover body is provided with a plurality of liquid inlets for receiving liquid delivered by the pump, the plurality of liquid inlets being circumferentially spaced around the cleaning liquid inlet.

6. A pump cap assembly of a pump according to claim 4, wherein the pump cap body is provided with a tube mounting hole, the cleaning liquid inlet and the tube mounting hole are coaxially arranged circular holes, the diameter of the tube mounting hole is larger than that of the cleaning liquid inlet, and the liquid supply assembly is partially arranged in the tube mounting hole.

7. A pump cap assembly of a pump according to claim 6, wherein the liquid supply assembly includes:

the liquid supply pipe is sleeved in the pipe mounting hole;

the liquid supply pump is used for conveying cleaning liquid into the liquid supply pipe;

and the switch piece is arranged between the liquid supply pipe and the liquid supply pump and controls the on-off of the liquid supply pipe.

8. A pump machine, comprising:

the pump shell is internally provided with an accommodating space;

the driving piece is arranged in the accommodating space;

a pump cap assembly according to any one of claims 1 to 7, said pump cap body being disposed on said pump housing and closing said receiving space.

9. The pump of claim 8, wherein said drive member includes a drive magnetic ring, and said impeller has a driven magnetic ring thereon, said drive magnetic ring being configured to drive said driven magnetic ring in rotation.

10. A disinfection machine comprising a pump as claimed in claim 8 or 9 for delivering disinfection liquid.