Water pump assembly

Abstract

This invention discloses a water pump assembly, including a water pump, a mounting housing, a sealing plug, a sealing cap, and an end cap. The water pump has an inlet and outlet end at its bottom and two electrodes at its top. Both ends of the mounting housing have openings, and the side wall of the smaller opening end near the electrodes has two power sockets / pins for electrical connection to the electrodes. The sealing plug is detachably inserted into the larger opening end of the mounting housing, and includes a mating end and an open end. Its inner cavity is divided into two compartments by a partition wall. The sealing cap seals against the sealing plug at the open end. The end cap is detachably placed over the smaller opening end. The two power sockets / pins face the same direction as the two through holes. The larger opening end of the mounting housing also has a connecting post for fastening the sealing cap, and the edge of the sealing cap seals against the bottom of the larger opening end. The two independent compartments of the sealing plug allow for vertical rotation of the water pump's inlet and outlet directions.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202311171581.0, entitled "Water Pump Assembly and Floor Scrubber", filed on September 11, 2023, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning equipment technology, and more particularly to a water pump assembly. Background Technology

[0003] In existing floor scrubbers, when the water pump assembly malfunctions, the complex internal water piping and numerous power and signal cables often force users to send the entire machine back to the manufacturer for repair. Since most water pump assemblies are integrated units, removing the damaged pump is difficult and requires specialized tools. Furthermore, the numerous electrical and water connections between the water pump assembly and the scrubber body contribute to the inefficiency of installing and maintaining the water pump assembly during manufacturing. Summary of the Invention

[0004] To overcome the technical problems of existing solutions requiring specialized disassembly tools to disassemble the water pump assembly casing, resulting in low efficiency for manufacturers and users in installing and maintaining the water pump assembly, this invention provides a water pump assembly and a floor scrubber.

[0005] In a first aspect, the present invention provides a water pump assembly, comprising:

[0006] Water pump;

[0007] The mounting housing accommodates the water pump, and both ends of the mounting housing have openings of different sizes.

[0008] A sealing end plug, installed at the large end of a mounting housing, seals the water pump within it. It is detachably plugged into the large opening end of the mounting housing. The sealing end plug has a hollow inner cavity, including a mating end, an open end, a peripheral wall connecting the mating end and the open end, and a partition wall separating the inner cavity into two chambers. The sealing end plug has a partition wall extending from the mating end to the open end, dividing the inner cavity into an inlet transition chamber and an outlet transition chamber. The sealing cover has abutting walls that extend into both chambers and seal against the inner peripheral wall. This design avoids the overly complex 3D spatial piping within the sealing end plug in existing technologies, avoids excessively large overall solid volume of the sealing end plug, and avoids uneven wall thickness during injection molding of the sealing end plug.

[0009] The sealing cap, together with the sealing end plug, forms two mutually sealing and isolating cavities, and seals against the sealing end plug at the large opening end of the mounting housing.

[0010] The larger end is also provided with a connecting post for fastening the sealing cap. The edge of the sealing cap is sealed to the bottom of the larger end. The sealing cap and the connecting post are provided with through holes, and screws are used to fasten the cap to enhance the sealing reliability.

[0011] In one or more alternative embodiments, the pump assembly further includes:

[0012] An end cap is provided at the end of the housing from the other end.

[0013] In one or more alternative embodiments, the top of the water pump is provided with two power-collecting electrodes, and the area on one side wall of the small opening end of the mounting housing near the power-collecting electrodes is provided with two power-collecting sockets / pins that are electrically connected to the power-collecting electrodes.

[0014] In one or more alternative embodiments, the bottom of the water pump is provided with inlet and outlet ends, the mating end is sealed with the inlet and outlet ends and seals the water pump in the mounting housing, and the inlet and outlet directions of the inlet and outlet ends are vertically turned to pass through two through holes on one side of the mounting housing.

[0015] In one or more alternative embodiments, the two power outlets / pins are aligned with the orientation of the two through holes.

[0016] In one or more alternative embodiments, the sealing end plug is sealed to the inlet and outlet ends of the water pump, and the end cap is detachably placed on the small end.

[0017] In one or more alternative embodiments, the small opening end of the mounting housing is provided with a wiring cavity, and an end cap is detachably disposed at the end of the wiring cavity at the small opening end of the mounting housing.

[0018] In one or more alternative embodiments, one end face of the sealing plug is provided with an abutment platform that accommodates and resiliently seals against the inlet and outlet of the water pump.

[0019] In one or more alternative embodiments, one side of the sealing end plug is provided with an inlet boss and an outlet boss that are respectively connected to the inlet and outlet parts of the water pump, and the inlet boss and the outlet boss are respectively in a sealing elastic abutment with the two through holes.

[0020] In one or more alternative embodiments, the two cavities are respectively an inlet transition cavity and an outlet transition cavity; the inlet part of the water pump is connected to the inlet boss through the inlet transition cavity; the outlet part of the water pump is connected to the outlet boss through the outlet transition cavity.

[0021] In one or more alternative embodiments, the sealing end plug is made of an elastic material and is perforated near the upper part of the abutment platform.

[0022] In one or more alternative embodiments, the sealing end plug is provided with reinforcing ribs at the hollowed-out portion that are flush with the peripheral wall and the abutment platform.

[0023] In one or more alternative embodiments, the mounting housing is provided with a partition near its small opening end, which separates the mounting housing into a mounting cavity for assembling the water pump and a wiring cavity for wiring the water pump.

[0024] In one or more alternative embodiments, the depth of the wiring cavity is consistent with the thickness of the end cap.

[0025] In one or more alternative embodiments, the partition plate is provided with a first connecting post with an internal threaded hole on the side facing the wiring cavity, and the end cap is provided with a through hole corresponding to the first connecting post. A locking member is simultaneously inserted through the through hole and the threaded hole to cover the end cap on the wiring cavity.

[0026] In one or more alternative embodiments, a positioning groove is provided on one side wall of the wiring cavity, and a positioning part is provided on the outer periphery of the end cover. When the end cover is assembled into the wiring cavity, the outer side of the positioning part abuts against the groove wall of the positioning groove.

[0027] In one or more alternative embodiments, the pump assembly further includes:

[0028] The sealing end cap, which elastically abuts against the partition, is sleeved on one end of the power-taking electrode of the water pump. Two protrusions with through holes are provided at the corresponding positions of the power-taking electrode. The protrusions pass through the partition and the corresponding through holes, and the lead wire of the power-taking electrode of the water pump passes through the protrusions and enters the wiring cavity.

[0029] In one or more alternative embodiments, a positioning protrusion is provided at one end of the water pump near the wiring cavity, and a second connecting post is provided on the side of the sealing end cover facing the positioning protrusion, and the second connecting post is provided with a positioning groove; when the sealing end cover is fitted onto the end of the water pump near the end cover, the positioning protrusion is inserted into the positioning groove.

[0030] In one or more alternative embodiments, the sealing cover extends toward the inlet transition cavity and the outlet transition cavity respectively, with the inlet transition cavity abutting against the enclosure wall and the outlet transition cavity abutting against the enclosure wall, and the inlet transition cavity and the outlet transition cavity sealingly abutting against the sealing end plug at the open end.

[0031] In one or more alternative embodiments, at least one fastening element is provided on each of the opposite sides of the mounting housing.

[0032] In one or more alternative embodiments, the two power outlets / pins of the mounting housing are on the same plane as the two through holes.

[0033] Secondly, this application provides a floor scrubbing machine, wherein the floor scrubbing machine is provided with the water pump assembly provided in the first aspect.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. By adopting the water pump assembly of this application, only two connection actions on the same side in a single direction are required to achieve the goal that the prior art requires four pipe interface connection actions, thus improving the manufacturing efficiency of the floor scrubber. When users remove or install the water pump assembly onto the floor scrubber body, they can disconnect or connect the electrical and water connections of the water pump assembly in one go, improving maintenance efficiency. When users encounter water pump failure and need to replace or maintain the water pump, the efficiency of replacement and maintenance is also improved, enhancing the convenience of water pump maintenance.

[0036] 2. After removing the sealing plug from the large end of the mounting housing and then removing the end cap from the small end of the mounting housing, the entire damaged water pump located inside the mounting housing can be removed. This disassembly process is convenient and reduces unnecessary disassembly procedures for the manufacturer. The mounting housing is also provided with a partition near the small end to isolate the water pump mounting cavity. The water pump outlet end is fitted with a sealing end cap, which can further buffer the water pump assembly from external impacts and also further waterproof the water pump outlet end.

[0037] 3. The sealing end plug of the water pump assembly cleverly utilizes two independent enclosed cavities to achieve a vertical reversal of the water inlet and outlet directions within these cavities, allowing the water to exit through two through holes on the circumference of the pump assembly's mounting housing. This eliminates the need for complex water pipe connections that would otherwise be completed within the sealing end plug itself. By providing an open end at the bottom of the sealing end plug and sealing it with a cap to form two mutually sealed and isolated cavities, the use of thin-walled injection molding within the sealing end plug reduces the amount of raw materials required for injection molding in the actual manufacturing process, further reducing the overall weight of the sealing end plug and improving the efficiency of manufacturing this component. Simultaneously, the clever use of the space volume of the two mutually sealed and isolated cavities solves the technical problem that would have prevented the sealing end plug from being processed using injection molding if a 3D spatial connection pipe were required inside the sealing end plug 30. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the water pump assembly of the present invention installed on the body of the floor scrubber;

[0040] Figure 2This is a perspective view of the water pump assembly of the present invention;

[0041] Figure 3 This is another perspective view of the water pump assembly of the present invention;

[0042] Figure 4 This is a front view of the water pump assembly of the present invention;

[0043] Figure 5 yes Figure 4 Planar view from direction A;

[0044] Figure 6 yes Figure 4 Planar view from direction B;

[0045] Figure 7 This is an exploded view of the water pump assembly of the present invention;

[0046] Figure 8 This is a top view of the water pump assembly of the present invention with the end caps hidden;

[0047] Figure 9 yes Figure 8 Planar view from the C-axis;

[0048] Figure 10 This is a schematic diagram of the assembly of the water pump component of the present invention;

[0049] Figure 11 This is a schematic diagram of the assembly of the wiring cavity portion of the water pump assembly of the present invention;

[0050] Figure 12 This is a perspective view of the sealing end plug of the water pump assembly of the present invention;

[0051] Numbering on the map:

[0052] 200 is the floor scrubber body, 201 is the hook, A1 is the positive electrode, A2 is the negative electrode, B1 is the water inlet, and B2 is the water outlet.

[0053] 100 represents the water pump assembly;

[0054] 1 is the water pump, 11 is the water inlet, 12 is the water outlet, and 13 is the positioning protrusion.

[0055] 2 is the mounting housing, 21 is the partition, 22 is the first connecting post, P is the wiring cavity, a1 is the socket / pin, a2 is the socket / pin, 23 is the first through hole, 24 is the second through hole; 25 is the connecting post;

[0056] 3 is a sealing end plug, 31 is an inlet boss, 32 is an outlet boss, 33 is an inlet interface, 34 is an outlet interface, 35 is a contact platform, and 36 is a partition wall.

[0057] 4 is the end cap, 42 is the through hole, 43 is the locking part, 44 is the positioning part, and 45 is the electrode partition.

[0058] 5 is the sealing cover, and 51 is the cable outlet guard.

[0059] 6 is the fastener, 61 is the pressing part, 62 is the snap-fit ​​part, 63 is the snap-fit ​​sliding surface, and 64 is the deformation zone; 7 is the sealing cover, 7m is the water outlet transition cavity abutting the enclosure wall, and 7n is the water inlet transition cavity abutting the enclosure wall. Detailed Implementation

[0060] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0061] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0062] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0064] As described in the background section, in order to overcome the technical problem that existing floor scrubbers require specialized disassembly tools to disassemble the water pump assembly casing, resulting in low efficiency for manufacturers and users in installing and maintaining the water pump assembly, the applicant filed Chinese Invention Patent Application No. 202310573215.1 and Chinese Utility Model Patent Application No. 202321231143.4 on May 19, 2023, disclosing a water pump assembly and a floor scrubber. The water pump assembly includes a mounting housing that accommodates the water pump, and the mounting housing has openings at both ends. The mounting housing has a partition near one end, which separates the mounting housing into a mounting cavity for assembling the water pump and a wiring cavity for wiring the water pump. Two power sockets / pins are provided on the side wall area corresponding to the wiring cavity. A sealing plug seals the water pump within the mounting cavity. This sealing plug is detachably inserted into the opening of the mounting cavity of the mounting housing, perpendicularly turning the water inlet and outlet directions of the water pump so that it exits through two through holes on one side of the mounting housing. An end cap is detachably placed over the opening of the wiring cavity. By removing the sealing plug from one end opening of the mounting housing and then removing the end cap from the other end opening, the entire damaged water pump located inside the mounting housing can be removed. This disassembly process is convenient and efficient.

[0065] Through further improvement and testing, the inventors discovered two problems. Firstly, the two drainage pipes sealed by two water-sealing plugs within the sealing end plug created an overly complex 3D spatial network. Furthermore, the uneven wall thickness of the injection-molded sealing end plug in different areas resulted in low injection molding efficiency, large deformation, and a low yield rate for individual sealing end plugs. Secondly, the overall solid volume of the sealing end plug was too large, leading to a heavy weight and requiring more injection molding material, thus increasing the cost per unit. Therefore, further optimization of the sealing end plug and the entire water pump assembly is needed.

[0066] To address the technical challenge of removing damaged water pumps from existing pump assemblies, which are often integrated units and require specialized tools, thus expending unnecessary time and effort on the manufacturer's part, this paper proposes further optimizations to the design of detachable pump assemblies and their sealing plugs. Figures 1 to 11 As shown, this embodiment of the invention provides a water pump assembly. When the water pump 1 is damaged, the sealing end plug 3 is removed from the large end opening of the mounting housing 2, and the end cover 4 is removed from the small end opening of the mounting housing 2. The entire mounting housing 2 can then be removed. This disassembly process is convenient and reduces unnecessary disassembly procedures for manufacturers.

[0067] In a first aspect, embodiments of the present invention provide a specific structure of a water pump assembly 100, according to the appendix. Figure 2-11As shown, the water pump assembly 100 specifically includes a water pump 1, a mounting housing 2 for housing and mounting the water pump 1, a sealing end plug 3 that seals the water pump 1 within the housing 2 from its larger end, a sealing cover 7 that seals and cooperates with the sealing end plug 3 to form two mutually sealing and isolating cavities, and an end cover 4 that covers the other end of the housing 2. The water pump 1 has an inlet and outlet end (not shown in the figure) located at its bottom and two power-collecting electrodes (not shown in the figure) located at its top. The mounting housing 2 has openings at both ends, one large and one small, with one side wall of the smaller opening end close to the power-collecting electrodes. The area is equipped with two power sockets / pins a1 and a2 that are electrically connected to the power-generating electrodes to power the water pump 1; the sealing end plug 3 has a hollow inner cavity, and the sealing end plug 3 can be detachably inserted into the large end of the mounting housing 2 to seal the water pump 1 inside the mounting housing 2. After the water inlet and outlet directions of the water pump 1 are vertically turned, it passes through two through holes 23 and 24 on one side of the mounting housing 2. When disassembling the mounting housing 2, the sealing end plug 3 is removed from the large end of the mounting housing 2; when assembling the mounting housing 2, the sealing end plug 3 is aligned with the large end opening of the mounting housing 2 and then directly and elastically pressed into place for assembly. In addition, the sealing end plug 3 is sealed to the inlet and outlet of the water pump 1 to prevent water from leaking into the interior of the floor scrubber and causing damage to the internal electronic structure of the floor scrubber; the sealing cover 7 seals against the sealing end plug 3 at the open end and together with it forms two mutually sealed and isolated cavities; the large opening end of the mounting housing is also provided with a connecting post 25 for fastening the sealing cover, and the edge of the sealing cover is sealed to the bottom of the large opening end; the end cover 4 is detachably set at the end of the wiring cavity P at the small opening end of the mounting housing 2; the two power sockets / pins are aligned with the two through holes. Unlike traditional mounting housings, the end cap 4 in this embodiment of the invention can be removed from the small end opening of the mounting housing 2. When the manufacturer needs to replace the power socket / pin that supplies power to the water pump 1 inside the end cap 4, the damaged power socket / pin inside the mounting housing 2 can be removed after the end cap 4 is removed from the small end opening of the mounting housing 2. When the water pump 1 inside the mounting housing 2 is damaged and needs to be replaced, the user only needs to remove the sealing end plug 3 from the large end opening of the mounting housing 2 to remove the water pump 1. After replacing the water pump 1 inside the mounting housing 2, the sealing end plug 3 is reassembled into the large end opening of the mounting housing 2. The process of replacing the water pump 1 as a whole is very convenient.

[0068] In one or more alternative embodiments, such as Figure 6 , Figure 7 , Figure 9 , Figure 12As shown, the sealing end plug 3 includes a sealing end plug 3 for sealing the inlet of the water inlet 11 and the outlet of the water outlet 12 of the water pump 1, and a sealing cover 7 that abuts against the sealing end plug 3 and together forms a mutually sealed and isolated water inlet transition cavity N and water outlet transition cavity M. The sealing end plug 3 is used to seal the water pump 1 with water inlet and outlet ends at the bottom in the mounting housing 2 with a large end opening to form a water pump assembly 100. The sealing end plug 3 has a mating end (not shown in the figure), an open end (not shown in the figure), and a peripheral wall (not shown in the figure) connecting the mating end and the open end. The mating end is sealed and fitted with the water inlet and outlet ends of the water pump, and the water inlet and outlet directions of the water pump are vertically turned and pass through two through holes on one side of the mounting housing 2. The sealing end plug 3 has a cavity formed by the mating end and the peripheral wall. The sealing end plug 3 also has a partition wall 36 that extends from the mating end to the open end, dividing the cavity into an inlet transition cavity N and an outlet transition cavity M. The sealing cover 7 is sealed to the open end of the sealing end plug 3. The sealing cover 7 extends toward the inlet transition cavity N and the outlet transition cavity M respectively, with the inlet transition cavity abutting the surrounding wall 7n and the outlet transition cavity abutting the surrounding wall 7m, respectively, and is sealed to the inner peripheral walls of the inlet transition cavity N and the outlet transition cavity M.

[0069] In one or more alternative embodiments, such as Figure 5 , Figure 7 , Figure 9 , Figure 12As shown, the mating platform 35 of the sealing end plug 3 is provided with an inlet interface 33 and an outlet interface 34. The vertical section of the inlet interface 33 is connected to the inlet 11 of the water pump 1. The inlet interface 33 is connected to the inlet boss 31 in the inlet transition cavity N. The vertical section of the outlet interface 34 is connected to the outlet 12 of the water pump 1. The outlet interface 34 is connected to the outlet boss 32 in the outlet transition cavity M. At the bottom end of the water pump 1, there are an inlet section 11 and an outlet section 12 pointing outward from the bottom end of the water pump. The inlet section 11 has an inlet channel for entering the water pump, and the outlet section 12 has an outlet channel for flowing out of the water pump. On the end face of the abutment platform 35, in the direction pointing inward from the sealing end plug 3, there are also vertical sections of the inlet interface 33 and the outlet interface 34 that can be elastically connected and accommodated respectively. The vertical sections of the inlet interface 33 and the outlet interface 34 are inside the sealing end plug 3, respectively facing the inlet boss 31 and the outlet boss 32, and respectively turn vertically through the inlet transition cavity N and the outlet transition cavity M and extend outward through the inlet boss 31 and the outlet boss 32. The height of the inlet boss 31 and the outlet boss 32 above the side of the sealing end plug 3, and the height difference between the inlet boss 31 and the outlet boss 32 and the peripheral wall of the sealing end plug 3 are greater than or equal to the wall thickness of the mounting housing 2 in the two through hole areas, can ensure that the entire water pump assembly 100 can more fully and elastically abut against the water inlet B1 and water outlet B2 of the floor scrubber body when it is installed into the floor scrubber body 200, and ensure that the water inlet and water outlet can be more fully inserted into the water inlet interface 33 and water outlet interface 34 of the inlet boss 31 and the outlet boss 32. The elastic part of the inlet boss 31 and the outlet boss 32 that is higher than the mounting housing 2 can be quickly extended and filled with the fitting gap between the mounting housing 2 and the floor scrubber body by its own elasticity. Meanwhile, the floor scrubber body is also equipped with positive electrode A1 and negative electrode A2 that cooperate with the power socket / pins a1 and a2 of the water pump assembly 100. When the user removes or installs the water pump assembly 100 onto the floor scrubber body at one time, the electrical connection and water connection of the water pump assembly 100 can be disconnected or connected at one time, which improves the efficiency of maintenance.

[0070] In one or more alternative embodiments, such as Figure 5 , Figure 6 , Figure 9 , Figure 10As shown, the sealing end plug 3 has a cavity formed inside by the mating end and the peripheral wall. Inside the sealing end plug 3, there is also a partition wall 36 extending from the mating end to the opening end, which divides the cavity into an inlet transition cavity N and an outlet transition cavity M. The sealing cover 7 is sealed to the opening end. The sealing cover 7 extends towards the inlet transition cavity N and the outlet transition cavity M respectively, with inlet transition cavity abutting wall 7n and outlet transition cavity abutting wall 7m, respectively, and is sealed to the inner peripheral walls of the inlet transition cavity N and the outlet transition cavity M. The vertical section of the inlet interface 33 and the vertical section of the outlet interface 34 are inside the sealing end plug 3, respectively, facing the inlet boss 31 and the outlet boss 32, and respectively, through the inlet transition cavity N and the outlet transition cavity M, respectively, turning vertically and extending outward through the inlet boss 31 and the outlet boss 32. This design facilitates the direct demolding of the sealing end plug 3 using a top-to-bottom mold separation method during the manufacturing process. It fully utilizes the thin-wall injection molding method inside the water inlet transition cavity N and the water outlet transition cavity M within the sealing end plug 3, reducing the raw materials required for injection molding in the actual manufacturing process and further reducing the weight of the entire sealing end plug 3. This improves the efficiency of manufacturing this component. At the same time, it cleverly utilizes the spatial volume of the water inlet transition cavity N and the water outlet transition cavity M to solve the technical problem that would have prevented the sealing end plug 3 from being processed by injection molding if a 3D spatial connection pipe was required inside the sealing end plug 3.

[0071] In one or more alternative embodiments, such as Figures 3 to 7 , Figures 9 to 12 As shown, the sealing end plug 3 is made of elastic material. This allows the sealing end plug 3 to fully utilize the elastic deformation of its own during the docking process with the water pump 1's water inlet and outlet, and the floor scrubber's water inlet and outlet. This elastic deformation helps to absorb the gaps between the sealing end plug 3 and the rigid water pump 1's water inlet and outlet, and the floor scrubber's water inlet and outlet. In addition, the outer wall of the water pump housing 2 can further support the outer peripheral wall of the sealing end plug 3, preventing leakage at the various external interfaces of the sealing end plug 3 under certain water flow pressure.

[0072] In one or more alternative embodiments, such as Figures 6 to 7 , Figure 10 , Figure 12 As shown, combined with Figure 5Let's take a look. The upper part of the sealing end plug 3 near the abutment platform 35 is hollow. In order to achieve elastic abutment and limiting between the sealing end plug 3 and the mounting housing 2, a reinforcing rib (not shown in the figure) is provided at the hollow part, which is flush with the periphery of the sealing end plug 3 and the abutment platform. This helps to increase the sealing effect of the sealing end plug 3 on the water pump 1 in the mounting housing 2, and can prevent water from leaking out from the gap between the sealing end plug 3 and the mounting housing 2. At the same time, it can further reduce the weight of the entire sealing end plug 3, and reduce the amount of raw materials required for injection molding in the actual production and manufacturing process.

[0073] In one or more alternative embodiments, such as Figure 6 As shown, the mounting housing 2 has a connecting post 25 at the bottom edge that mates with the sealing cover 7, which can be screwed in with a fixing screw. The sealing cover 7 has a through hole at the corresponding position of the connecting post 25. The use of screw fastening here further increases the sealing fit strength between the sealing cover 7 and the mounting housing 2, thereby further improving the sealing reliability of the sealing cover 7 and the water inlet transition cavity N and water outlet transition cavity M of the sealing end plug 3.

[0074] In one or more alternative embodiments, such as Figure 5 , Figure 7 , Figure 9 , Figure 11As shown, the mounting housing 2 has a partition 21 near its small opening end. This partition 21 separates the mounting housing 2 into a mounting cavity (not shown in the attached figure) for assembling the water pump 1 and a wiring cavity P for wiring the pump 1. The mounting housing 2 has an opening at its large end, which contains a mounting cavity for assembling the water pump 1. The water pump 1 is cylindrical, and the mounting cavity is also cylindrical. When the water pump 1 is assembled in the mounting cavity, the outer side of the water pump 1 abuts against the cavity wall, thus ensuring stable assembly and preventing the water pump 1 from shaking in the mounting cavity if the mounting housing 2 collides with other structures. Additionally, the mounting housing 2 has a large end and a small end positioned opposite each other. The large and small ends of the mounting housing 2 are open. A partition 21 is provided near the small end of the mounting housing 2, which isolates a wiring cavity P above the mounting cavity. The partition 21 has two outlet holes (not shown in the attached diagram) corresponding to the two electrode plates (not shown in the attached diagram) of the water pump 1. The electrode leads of the water pump 1 can pass through the outlet holes and enter the wiring cavity P, where they are then welded to two power outlet sockets / pins a1 and a2 that are snapped onto the end of the wiring cavity and can be used to draw power externally. One side of the sealing plug 3 has an inlet 31 and an outlet 32 ​​that communicate with the water inlet 11 and the water outlet 12 of the water pump 1, respectively. That is, the water inlet 11 of the water pump 1 is connected to the inlet 31, and the water outlet 12 of the water pump 1 is connected to the outlet 32. When water is injected from the outside, water is injected into the water inlet 11 of the water pump 1 through the water inlet 31; conversely, when water is injected from the outside, water is injected into the water outlet 12 of the water pump 1. During this process, the sealing end plug 3 is sealed to the large end opening of the mounting housing 2 to prevent water from leaking into the interior of the floor scrubber.

[0075] In this embodiment, as Figures 5 to 7 , Figure 9 , Figure 10 , Figure 12As shown, the sealing end plug 3 is provided with an abutment platform 35 on one end face that is sealed to the water pump 1. When replacing the water pump 1 in the mounting housing 2, first remove the sealing end plug 3 from the large end of the mounting housing 2. At this time, the large end opening of the mounting housing 2 has been opened. Then, detach the water pump 1 from the mounting housing 2 in the direction away from the small end of the mounting housing 2, and the entire water pump 1 can be removed. Simply put, after removing the sealing end plug 3 from the large end opening of the mounting housing 2, rotate the water pump assembly 100 so that the large end opening of the mounting housing 2 faces the direction of gravity. Under the action of gravity, the water pump 1 can slowly slide out of the large end opening of the mounting housing 2. When assembling the water pump 1 into the mounting cavity, first pass the two electrode leads of the water pump 1 through the partition 21. With two outlet holes, and the large end opening of the mounting housing 2 facing upwards and the two electrode ends of the water pump 1 facing downwards, slide the water pump 1 into the mounting housing 2 until the electrode ends of the water pump 1 abut against the partition plate 21. Then, continue to press the sealing end plug 3 into the vertical section of the water inlet interface 33 and the vertical section of the water outlet interface 34 of the sealing end plug 3, with the abutment platform 35 facing the water inlet 11 and the water outlet 12 of the water pump 1, until the water pump 1 is close to the abutment platform 35 of the sealing end plug 3, connecting the water inlet 11 of the water pump 1 with the water inlet 31 and the water outlet 12 of the water pump 1 with the water outlet 32. This completes the alignment and connection of the water pump 1's inlet and outlet ends with the sealing end plug 3. Finally, after the connection is completed, the exposed end face of the sealing end plug 3 and the large end face of the mounting housing 2 should be flush. Therefore, after the water pump 1 is aligned and connected with the sealing end plug 3 by the abutment platform 35, the stability of the water pump 1 is further improved.

[0076] In this embodiment, as Figure 1 , Figure 5 , Figure 6 , Figure 7As shown, the sealing end plug 3 is provided with an inlet interface 33 and an outlet interface 34. When water passes through the sealing end plug 3, it is either poured into the water pump 1 or flows out of the water pump 1 through the inlet interface 33 and the outlet interface 34. The vertical section of the inlet interface 33 is connected to the inlet section 11 of the water pump 1. The inlet interface 33 is connected to the inlet 31 through the inlet transition cavity N. When the inlet section 11 of the water pump 1 passes through the vertical section of the inlet interface 33 and the water supply tank of the floor scrubber passes through the inlet boss 31, an inlet pipeline is formed. At this time, the water supply tank of the floor scrubber pours water into the water pump 1. The vertical section of the water outlet interface 34 is connected to the water outlet section 12 of the water pump 1. The water outlet interface 34 is connected to the water outlet 32 ​​through the water outlet transition cavity M. When the water outlet section 12 of the water pump 1 passes through the vertical section of the water outlet interface 34 and the water outlet tank of the floor scrubber passes through the water outlet boss 32, a water outlet pipeline is formed. At this time, water flows from the water pump 1 into the water outlet pump 1. Through the water inlet interface 33 and the water outlet interface 34, as well as the mutually isolated water inlet transition cavity N and water outlet transition cavity M, the water does not affect each other during the process of entering or exiting the water pump 1. The built-in sealing plug 3, which integrates the inlet interface 33 and the outlet interface 34, simplifies the water pipe connection process, which previously required two pipes to connect to the water pump 1 and then to the target interface. Only the axial alignment of the water pump relative to the sealing plug 3's abutment platform is needed to connect the inlet 11, outlet 12, and sealing element 3 of the water pump 1. Simultaneously connecting the inlet interface 33 and outlet interface 34 on the sealing element assembly 3 of the water pump assembly to the water inlet and outlet of the floor scrubber body completes the connection of the four pipe interfaces of the water pump assembly 100 within the floor scrubber body. In short, by adopting the water pump assembly 100 of this application, only two connection actions on the same side in a single direction are needed to achieve the goal that required four pipe interface connection actions in the prior art, thus improving the manufacturing efficiency of the floor scrubber. Users can also improve the efficiency and convenience of water pump maintenance when encountering pump failures and need to replace or maintain the water pump.

[0077] It should be noted that the aforementioned water inlet B1, water outlet B2, water inlet 11, water outlet 12, positive electrode A1, and negative electrode A2 are merely alternative descriptions for the convenience of describing the technical solution. In actual application of the overall technical solution of this application, the water inlet, water outlet, water supply, water pumping, positive electrode, and negative electrode can be flexibly selected according to actual needs, and these technical solutions are all within the protection scope of this application.

[0078] In one or more alternative embodiments, such as Figure 5 , Figure 7 , Figure 9 , Figure 11As shown, the mounting housing 2 has a partition 21 near the small end, and a wiring cavity P is separated above the mounting cavity. The wiring cavity P is provided inside the opening of the small end of the mounting housing 2 for mounting the end cover 4. Since the shape of the wiring cavity P matches the shape of the end cover 4, the outer side of the end cover 4 abuts against the groove wall of the wiring cavity P, so that the end cover 4 is completely accommodated in the wiring cavity P. In addition, the distance from the small end of the mounting housing 2 to the partition 21, i.e. the depth of the wiring cavity P, is consistent with the overall thickness of the end cover 4, so that the end cover 4 accommodated in the wiring cavity P is flush with the small end of the mounting housing 2 and cannot protrude outside the wiring cavity P, thereby reducing the height dimension occupied by the entire water pump assembly 100 in the space inside the floor scrubber body 200 and improving the internal utilization rate of the floor scrubber. Furthermore, on the side of the end cover 4 facing the wiring cavity P, there is an electrode partition 45 extending between the two power sockets / pins a1 and a2 inside the wiring cavity. The electrode partition extends from the end face of the end cover 4 that is flush with the end face of the power sockets / pins a1 and a2 of the water pump assembly 100 to the end of the length of the power sockets / pins a1 and a2 inside the wiring cavity P. In this way, the electrode partition 45 can prevent a small amount of water from leaking into the wiring cavity P, and the electrode partition 45 can still effectively prevent water from causing a short circuit between the two power sockets / pins a1 and a2 of the water pump assembly.

[0079] In one or more alternative embodiments, such as Figure 5 , Figure 9As shown, a first connecting post 22 is provided on the partition 21 of the wiring cavity P in the direction facing the end cover 4. The height of the first connecting post 22 is lower than the depth of the wiring cavity P. The height difference between the height of the first connecting post 22 and the depth of the wiring cavity P is exactly the wall thickness of the top of the end cover 4. Therefore, the first connecting post 22 is completely located in the wiring cavity P. When the end cover 4 is placed in the wiring cavity P, the end face of the end cover 4 is flush with the second end of the mounting housing 2. A threaded hole is provided at the end of the first connecting post 22 facing the end cover 4. The end cover 4 is provided with a through hole 42 corresponding to the first connecting post 22. For example, the first connecting post 22 is located in the central axis of the wiring cavity P, and the through hole 42 is located in the central axis of the end cover 4. When the end cover 4 is assembled in the wiring cavity P, the threaded hole and the through hole 42 are correspondingly arranged. The locking member 43 is simultaneously inserted into the through hole 42 and the threaded hole. Since the through hole 42 penetrates the wall thickness of the top of the end cover 4, the locking member 43 is threaded into the threaded hole after being inserted into the through hole 42, so as to assemble the end cover 4 into the wiring cavity P. When it is necessary to remove the water pump 1 from the mounting housing 2 for re-welding the power socket / pins a1 and a2, twist the locking member 43 until it disengages from the through hole 42 and the threaded hole. Then, remove the end cap 4 from the small end opening of the mounting housing 2. At this time, remove the sealing plug 3 from the large end opening of the mounting housing 2. Rotate the water pump assembly so that the large end of the mounting housing 2 faces downwards, and the water pump 1 can slide out of the large end opening of the mounting housing 2 under gravity. After assembling the water pump 1 and completing the re-welding of the power socket / pins a1 and a2, assemble the end cap 4 into the wiring cavity P. The locking member 43 passes through both the through hole 42 and the threaded hole to stably assemble the mounting housing 2 between the end cap 4 and the sealing plug 3, thereby improving the stability of the mounting housing 2. It should be noted that the locking member 43 in this embodiment of the invention is, for example, a screw or bolt, and is not specifically limited.

[0080] In one or more alternative embodiments, such as Figure 3 As shown, the inner side of the small end opening of the mounting housing 2 is also provided with a positioning groove (not shown in the attached figure) that communicates with the wiring cavity P. The outer periphery of the end cover 4 is provided with a positioning part (not shown in the attached figure). The groove shape of the positioning groove matches the shape of the positioning part. For example, the end cover 4 is square in shape, and the positioning groove is square in shape. When the end cover 4 is assembled into the wiring cavity P, the outer side of the positioning part abuts against the groove wall of the positioning groove to prevent the entire end cover 4 from rotating around the first connecting post 22, thereby further improving the stability of the end cover 4.

[0081] In one or more alternative embodiments, such as Figure 5 , Figures 7 to 9As shown, the water pump assembly 100 also includes a sealing end cap 5, which is fitted onto the electrode lead end of the water pump 1. Two lead-out guards 51, corresponding to the electrode lead of the water pump 1, are provided on the end face of the sealing end cap 5. Each lead-out guard 51 has a lead-out hole at its center. After the sealing end cap 5 is fitted onto the electrode lead end of the water pump 1, it is then inserted into the mounting housing 2. The sealing end cap 5 is elastically abutted against the partition 21 near the smaller end of the mounting housing 2. The lead-out guards 51 of the sealing end cap 5 correspond to the lead-out holes on the partition 21. The entire sealing end cap 5 is made of flexible material. Because water inside the water pump 1 is prone to leaking outside the mounting housing 2, this flexible sealing end cap 5 is provided at the end of the water pump 1 closest to the end cap 4. Combined with the flexible sealing end plug 3 at the first end of the mounting housing 2, this provides sealing protection for the water pump 1, allowing water to enter from both the larger and smaller ends of the mounting housing 2, further improving the overall sealing performance of the water pump assembly.

[0082] In one or more alternative embodiments, such as Figure 5 , Figure 7 , Figure 9 As shown, a positioning protrusion 13 is provided at one end of the water pump 1 near the end cover 4, and a second connecting post (not shown in the attached figure) is provided on the side of the sealing end cover 5 facing the positioning protrusion 13. The second connecting post is provided with a positioning groove (not shown in the attached figure). When the sealing end cover 5 is fitted onto the end of the water pump 1 near the end cover 4, since the outer diameter of the positioning groove is compatible with the outer diameter of the positioning protrusion 13, the positioning protrusion 13 can be inserted into the positioning groove, so that the sealing end cover 5 can be stably fitted onto the end of the water pump 1 near the end cover 4, avoiding the situation where the sealing end cover 5 shakes, and further improving the stability of the sealing end cover 5.

[0083] In one or more alternative embodiments, such as Figures 1 to 11 As shown, at least one fastening element 6 is provided on each opposite side of the mounting housing 2, for securing the entire water pump assembly 100 inside the floor scrubber body 200 and engaging it in the hook 201. Specifically, as... Figure 2As shown, at least one fastening member 6 extends outward from the small end of the mounting housing 2 along both opposite sides. The fastening member 6 first extends downward from the root of the small end of the mounting housing 2, and then turns back upward after reaching the lowest point, forming a V-shaped deformation portion 64 at the root of the small end of the mounting housing 2. From the lowest point of the turning point, the fastening member 6 extends upward at a certain angle, forming a snap-fit ​​sliding surface 63 on the surface of the fastening member 6. When the snap-fit ​​sliding surface 63 of the fastening member 6 continues to extend at a specific angle to near the mounting housing When the small end of body 2 is cylindrical and arc-shaped, when the two opposing fasteners 6 extend outward from the two sides of the snap-fit ​​sliding surface 63 in a direction that the two opposing fasteners 6 are further apart, the upper surface of the snap-fit ​​part 62 is provided with a snap-fit ​​platform (not shown in the figure) that cooperates with the lower surface of the hook 201 inside the body of the floor scrubber 200. The fasteners 6 continue to extend upward along a specific slope on the snap-fit ​​sliding surface 63 until a slightly outwardly curved pressing part 61 is formed at the end of the fasteners 6. When the user installs the water pump assembly 100 into the floor scrubber body 200, in addition to the water inlet and power outlet of the water pump assembly 100 cooperating with the components inside the floor scrubber body 200, the snap-fit ​​sliding surface 63 of the fastener 6 can continuously slide downward along the inner wall of the opposite hook 201. Under the combined action of the slope of the snap-fit ​​sliding surface 63 and the elastic stress of the V-shaped deformation part 64, when the water pump assembly 100 slides along the snap-fit ​​sliding surface 63 of the fastener 6 to a certain extent, the snap-fit ​​part 62 will spring towards the inner wall of the opposite hook 201 and form a stable elastic snap-fit ​​with the hook 201. When the user needs to remove the water pump assembly 100, they only need to press the pressing part 61 of the latching piece 6. This will cause the opposing locking parts 62 to retract towards each other and eventually disengage from the opposing hooks 201. The user can then simply lift the entire water pump assembly 100 upwards, away from the direction it slid into the locking mechanism, to separate the water pump assembly 100 from the floor scrubber body 200. Traditional water pump assemblies are generally directly fixed inside the floor scrubber body, requiring specialized tools for disassembly. However, in this embodiment of the invention, the water pump assembly can be removed simply by manually prying open the two latching pieces 6 on both sides of the mounting housing 2. This improves the ease of disassembly, truly achieving tool-free disassembly and assembly of the water pump assembly, and reducing the difficulty of maintenance for the user.

[0084] In one or more alternative embodiments, such as Figures 1 to 11As shown, the two power sockets / pins a1 and a2 of the mounting housing 2 and the two through holes 23 and 24 of the mounting housing 2 are on the same plane. Geometrically, the straight line formed by points a1 and a2 and the straight line formed by the centers of the two through holes 23 and 24 are parallel lines that must naturally lie on the same plane. The statement that the two power sockets / pins a1 and a2 of the mounting housing 2 and the two through holes 23 and 24 are on the same plane means that the side wall of the mounting housing 2, which includes the two power sockets / pins a1 and a2 and the two through holes 23 and 24, is itself a complete side wall on the same plane. This allows for convenient and quick installation of a flat mating side wall of the mounting housing 2 onto the corresponding flat inner side wall of the floor scrubber body 200. Furthermore, if the two power sockets / pins a1 and a2 of the mounting housing 2 and the two through holes 23 and 24 of the mounting housing 2 are respectively located on the stepped surfaces of the mounting housing 2 at two different heights, then the corresponding mating surface of the floor scrubber body 200 should also be a stepped surface, as long as the connection between the electrical interface and the water interface of the water pump assembly 100 can be achieved quickly in one go.

[0085] In this embodiment of the invention, the water pump assembly 100 allows for easy removal of the damaged water pump 1 from the mounting housing 2. This is achieved by removing the sealing plug 3 from the large end opening of the mounting housing 2 and then removing the end cover 4 from the small end opening of the mounting housing 2. This disassembly process is convenient, reducing unnecessary disassembly steps for manufacturers and simplifying maintenance for users. Users can simultaneously disconnect and connect the electrical and water connections of the water pump assembly 100 when removing or installing it onto the floor scrubber body 200, improving maintenance efficiency. Using this water pump assembly, only two connection points on the same side in a single direction are required, achieving the goal of requiring four pipe interfaces in the prior art, thus improving the manufacturing efficiency of the floor scrubber. Furthermore, it improves the efficiency and convenience of water pump maintenance when users need to replace or maintain the water pump in case of failure.

[0086] Secondly, the present invention also provides a floor scrubbing machine, which is provided with the water pump assembly 100 provided in the first aspect. When replacing the water pump 1, the water pump assembly 100 in the floor scrubbing machine is disassembled and the water pump 1 located in the mounting housing 2 is taken out according to the aforementioned embodiment.

[0087] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A water pump assembly, characterized in that, include: Water pump; The mounting housing accommodates the water pump, and both ends of the mounting housing have openings of different sizes. A sealing end plug, installed at the large end of a mounting housing, seals the water pump within it. It is detachably plugged into the large opening end of the mounting housing. The sealing end plug has a hollow inner cavity, including a mating end, an open end, a peripheral wall connecting the mating end and the open end, and a partition wall separating the inner cavity into two chambers. The sealing end plug has a partition wall extending from the mating end to the open end, dividing the inner cavity into an inlet transition chamber and an outlet transition chamber. The sealing cover has abutting walls that extend into both chambers and seal against the inner peripheral wall. This design avoids the overly complex 3D spatial piping within the sealing end plug in existing technologies, avoids excessively large overall solid volume of the sealing end plug, and avoids uneven wall thickness during injection molding of the sealing end plug. The sealing cap, together with the sealing end plug, forms two mutually sealing and isolating cavities, and seals against the sealing end plug at the large opening end of the mounting housing. The larger end is also provided with a connecting post for fastening the sealing cap. The edge of the sealing cap is sealed to the bottom of the larger end. The sealing cap and the connecting post are provided with through holes, and screws are used to fasten the cap to enhance the sealing reliability.

2. The water pump assembly as described in claim 1, characterized in that, Also includes: An end cap is provided at the end of the mounting housing from the other end; Preferably, the top of the water pump is provided with two power electrodes, and the side wall of the small opening end of the housing near the power electrodes is provided with two power sockets / pins for electrically connecting to the power electrodes; Preferably, the bottom of the water pump is provided with inlet and outlet ends, the mating end is sealed with the inlet and outlet ends and seals the water pump in the mounting housing, and the inlet and outlet directions of the inlet and outlet ends are vertically turned to pass through two through holes on one side of the mounting housing.

3. The water pump assembly as described in claim 2, characterized in that, The two power outlets / pins are aligned with the two through holes.

4. The water pump assembly as described in claim 2, characterized in that, The sealing end plug is sealed to the inlet and outlet of the water pump, and the end cover is detachably installed on the small end. Preferably, the small end of the mounting housing is provided with a wiring cavity, and the end cap is detachably disposed at the end of the wiring cavity of the small end of the mounting housing.

5. The water pump assembly as described in claim 2, characterized in that, One end face of the sealing plug is provided with an abutment platform that accommodates and elastically seals against the inlet and outlet ends of the water pump; Preferably, one side of the sealing end plug is provided with an inlet boss and an outlet boss that are respectively connected to the inlet and outlet of the water pump, and the inlet boss and the outlet boss are respectively in a sealing elastic abutment with the two through holes. Preferably, the two cavities are an inlet transition cavity and an outlet transition cavity, respectively; the inlet part of the water pump is connected to the inlet boss through the inlet transition cavity; the outlet part of the water pump is connected to the outlet boss through the outlet transition cavity. Preferably, the sealing end plug is made of an elastic material, and the sealing end plug near the upper part of the abutment platform is hollowed out; Preferably, the sealing end plug has reinforcing ribs at the hollowed-out area that are flush with the peripheral wall and the abutment platform.

6. The water pump assembly as described in claim 2, characterized in that, The mounting housing has a partition near its small opening end, which separates the mounting housing into an mounting cavity for assembling the water pump and a wiring cavity for wiring the water pump. Preferably, the depth of the wiring cavity is the same as the thickness of the end cap; Preferably, the partition plate is provided with a first connecting post with an internal threaded hole on the side facing the wiring cavity, and the end cap is provided with a through hole corresponding to the first connecting post. A locking member is simultaneously inserted into the through hole and the threaded hole to cover the end cap onto the wiring cavity. Preferably, a positioning groove is provided on one side wall of the wiring cavity, and a positioning part is provided on the outer periphery of the end cover. When the end cover is assembled into the wiring cavity, the outer side of the positioning part abuts against the groove wall of the positioning groove.

7. The water pump assembly as claimed in claim 2, characterized in that, Also includes: The sealing end cap is elastically abutted against the partition and sleeved on one end of the power taking electrode of the water pump. Two protrusions with through holes are provided at the corresponding positions of the power taking electrode. The protrusions pass through the partition and the corresponding through holes, and the lead wire of the power taking electrode of the water pump passes through the protrusions and enters the wiring cavity. Preferably, a positioning protrusion is provided at one end of the water pump near the wiring cavity, and a second connecting post is provided on the side of the sealing end cover facing the positioning protrusion, and the second connecting post is provided with a positioning groove; when the sealing end cover is fitted onto the end of the water pump near the end cover, the positioning protrusion is inserted into the positioning groove.

8. The water pump assembly as described in claim 5, characterized in that, The sealing cap extends towards the inlet and outlet water transfer chambers respectively, with the inlet water transfer chamber abutting against the enclosure wall and the outlet water transfer chamber abutting against the enclosure wall. The inlet water transfer chamber and the outlet water transfer chamber are sealed at the opening end, abutting against the sealing end plug.

9. The water pump assembly as claimed in claim 2, characterized in that, At least one fastening element is provided on each of the opposite sides of the mounting housing.

10. The water pump assembly as described in any one of claims 2-9, characterized in that, The two power sockets / pins on the mounting housing are on the same plane as the two through holes.

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