Water pump end plug kit and water pump assembly

Abstract

The application discloses a water pump end plug kit and a water pump assembly. The water pump end plug kit comprises a water pump end plug and an abutting sealing cover. The water pump end plug comprises an end plug body. The end plug body has a matching end and an opening end. The matching end is sealingly matched with a water inlet / outlet end of a water pump. The abutting sealing cover is abutted with the opening end of the end plug body and forms a water outlet switching cavity and a water inlet switching cavity which are mutually sealed and isolated together. The abutting sealing cover is detachably connected with a mounting shell. The water outlet switching cavity and the water inlet switching cavity are simultaneously outwardly butted through a side wall of the end plug body. The end plug body has a peripheral wall connected with the matching end and the opening end. A cavity is surrounded in the end plug body through the matching end and the peripheral wall. A partition wall is arranged in the end plug body. The partition wall is from the matching end to the opening end, and separates the cavity in the end plug body into the water outlet switching cavity and the water inlet switching cavity. The water pump assembly comprises the water pump, the mounting shell and the water pump end plug kit, and avoids arranging a communication pipeline in a 3D space position in the end plug body.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202411499289.6, entitled "A Water Pump End Plug Kit and Water Pump Assembly", the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the technical field of cleaning equipment, and more particularly to a water pump end plug kit and 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 problem that existing floor scrubbers require specialized disassembly tools to remove 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 end plug kit and a water pump assembly.

[0005] In a first aspect, this application provides a water pump end plug kit for sealing a water pump in a mounting housing with an opening at one end. The water pump end plug kit includes a water pump end plug and an abutment sealing cover. The water pump end plug includes an end plug body with a mating end and an open end. The mating end is sealed to the inlet and outlet ends of the water pump. The abutment sealing cover abuts against the open end of the end plug body and together they form a mutually sealed and isolated outlet transfer cavity and inlet transfer cavity. The abutment sealing cover is also detachably connected to the mounting housing. The outlet transfer cavity and the inlet transfer cavity are simultaneously connected to the outside through the side wall of the end plug body.

[0006] In one or more optional embodiments, the end plug body has a peripheral wall connecting the mating end and the open end, and a cavity is formed inside the end plug body through the mating end and the peripheral wall.

[0007] In one or more optional embodiments, the end plug body is further provided with a partition wall extending from the mating end to the opening end, dividing the cavity inside the end plug body into an outlet transition cavity and an inlet transition cavity.

[0008] In one or more optional embodiments, the abutting sealing cover is vertically provided with an outlet transition cavity abutting the enclosure wall and an inlet transition cavity abutting the enclosure wall;

[0009] The outlet transition cavity abuts against the enclosure wall and can seal against the inner wall of the outlet transition cavity;

[0010] The water inlet transition cavity can be sealed against the inner wall of the enclosure.

[0011] In one or more optional embodiments, the abutment sealing cover is flush with the end face of the mounting housing, the mounting housing is provided with a plurality of horizontally arranged connecting parts, each connecting part is provided with a screw hole, the abutment sealing cover is provided with a threaded hole corresponding to the screw hole, the abutment sealing cover is detachably connected to the housing by screws, the screws pass through the screw holes and are threadedly connected to the threaded holes.

[0012] In one or more optional embodiments, an inlet and an outlet are provided at the bottom of the water pump. The outlet and inlet transition chambers are respectively connected to the outlet and inlet of the water pump. The inlet and outlet ends of the water pump can sequentially pass through the pump end plug and the mounting housing to allow water to enter and exit the external environment.

[0013] In one or more optional embodiments, the end plug body is sealed and abuts against the inlet and outlet ends of the water pump. The inlet part is provided with an inlet channel for entering the water pump, and the outlet part is provided with an outlet channel for flowing out of the water pump. The end seal sleeve connects the inlet and outlet parts of the water pump.

[0014] In one or more optional embodiments, the sidewall of the end plug body is provided with an outlet hole and an inlet hole corresponding to the outlet transition cavity and the inlet transition cavity, respectively.

[0015] In one or more optional embodiments, the mating end of the end plug body that abuts against the water pump seal is provided with:

[0016] The water inlet interface connects to the water inlet adapter cavity and is sealed against the water inlet section.

[0017] The water outlet interface connects to the water outlet adapter cavity and is sealed to the water outlet section.

[0018] In one or more optional embodiments, the pump end plug further includes:

[0019] The inlet boss seals and elastically abuts against the inlet hole and is fixedly connected to the side wall of the weight reduction zone.

[0020] The outlet protrusion is sealed and elastically abuts against the outlet hole and is fixedly connected to the side wall of the weight reduction zone.

[0021] In one or more optional embodiments, at least one reinforcing rib is provided on the outer side wall of both the inlet boss and the outlet boss, and one side of the reinforcing rib is fixedly connected to the side wall of the weight reduction zone.

[0022] In one or more alternative embodiments, a portion of the sidewall of the end plug body is recessed to form a weight-reduction zone;

[0023] The sidewall of the weight reduction zone is parallel to the sidewall of the end plug body;

[0024] The water inlet and outlet are located on the side wall of the weight reduction zone.

[0025] In one or more alternative embodiments, the end plug body is made of an elastic material.

[0026] Secondly, this application also provides a water pump assembly, including a water pump, a housing, and a water pump end plug assembly as described in the first aspect, wherein the water pump is disposed within the housing.

[0027] In one or more optional embodiments, the water pump is provided with an electrical wire end relative to the inlet and outlet ends, and the electrical wire end is provided with two power-taking electrodes. The water pump assembly also includes a sealing cover, which is provided on the electrical wire end. The sealing cover is provided with an outlet guard corresponding to the power-taking electrodes, and the power-taking electrodes can be accommodated in the outlet guard.

[0028] In one or more optional embodiments, the sealing cover is provided with a positioning groove or positioning protrusion at the middle position, and the water pump's electrical wire end is provided with a corresponding positioning protrusion or positioning groove at the middle position.

[0029] In one or more optional embodiments, an opening is provided at the port of the housing opposite to the sealing cover, forming a wiring cavity between the opening and the sealing cover for accommodating two electrode leads; a partition is provided inside the wiring cavity for sealing the sealing cover; a wire outlet hole is provided on the partition, through which one end of the two electrode leads passes and is electrically connected to two power-generating electrodes respectively; two power-generating sockets or pins are provided on the side wall of the wiring cavity and are electrically connected to the other end of the two electrode leads respectively.

[0030] In one or more alternative embodiments, the pump assembly further includes an end cap that is detachably connected to the wiring cavity.

[0031] In one or more optional embodiments, a connecting post is provided in the wiring cavity, and a through hole is provided on the end cover corresponding to the connecting post. The end cover is detachably connected to the wiring cavity by a locking member, and the locking member is detachably connected to the connecting post through the through hole.

[0032] In one or more alternative embodiments, at least one fastening element is provided on each of the opposite sides of the mounting housing.

[0033] This invention provides a water pump end plug kit for sealing a housing containing a water pump. The kit includes a water pump end plug and a sealing cap. The water pump end plug includes an end plug body that seals against the inlet and outlet ends of the water pump. The end plug body has independent outlet and inlet transition cavities, which are respectively connected to the outlet and inlet parts of the water pump. The side wall of the end plug body has outlet and inlet holes corresponding to the outlet and inlet transition cavities, respectively. The sealing cap abuts against the end plug body and is detachably connected to the housing to seal the outlet and inlet transition cavities.

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

[0035] 1. By providing an open end at the bottom of the end plug body and sealing the opening end with an abutment sealing cap, the abutment sealing cap and the end plug body together form two mutually sealed and isolated cavities (an outlet transition cavity and an inlet transition cavity). This cleverly utilizes the spatial volume of the two mutually sealed and isolated cavities, avoiding the need for a 3D spatial connection pipe inside the end plug body 30, and also avoiding the technical problem that the end plug body cannot be manufactured using thin-wall injection molding. Furthermore, the outlet and inlet transition cavities are embedded within the end plug body, reducing the solid volume of the end plug body, thereby reducing the raw materials required in the actual injection molding process and further reducing the overall weight of the end plug body, thus improving the efficiency of manufacturing this component. Furthermore, the pump end plug assembly incorporates two independent enclosed cavities, which cleverly allow the water inlet and outlet directions of the pump to be vertically reversed within the two cavities and exit through two through holes on the side wall of the housing, eliminating the need for the complex water pipe connections that would otherwise be completed in the end plug body.

[0036] 2. After removing the pump end plug assembly from the large end of the housing and then removing the end cap from the small end of the housing, the entire damaged pump located inside the housing can be removed. This disassembly process is convenient and reduces unnecessary disassembly procedures for manufacturers.

[0037] 3. 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.

[0038] 4. By adopting the water pump assembly of this application, only two connection actions 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 encounter water pump failures and need to replace or maintain the water pump, the efficiency of replacement and maintenance can also be improved, enhancing the convenience of water pump maintenance. Attached Figure Description

[0039] 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.

[0040] Figure 1 This is a perspective view of the water pump end plug in the water pump end plug kit of the present invention;

[0041] Figure 2 This is a front view of a water pump assembly configured with the water pump end plug kit of the present invention;

[0042] Figure 3 yes Figure 2 Sectional view along line A;

[0043] Figure 4 yes Figure 2 Sectional view along line B;

[0044] Figure 5 yes Figure 4 Sectional view along line C;

[0045] Figure 6 This is an exploded view of the water pump assembly with the water pump end plug kit of the present invention.

[0046] Numbering on the map:

[0047] 100 represents the water pump assembly;

[0048] 1 is the water pump, 11 is the water inlet, 12 is the water outlet, and 13 is the positioning protrusion.

[0049] 2 is the housing, 21 is the partition, 22 is the connecting post, P is the wiring cavity, a1 is the power socket / pin, a2 is the power socket / pin, 23 is the first through hole, 24 is the second through hole; 25 is the connecting part;

[0050] 3 is the pump end plug, 30 is the end plug body, 31 is the inlet boss, 32 is the outlet boss, 33 is the inlet interface, 34 is the outlet interface, and 35 is the partition wall.

[0051] M is the outlet transition chamber, and N is the inlet transition chamber;

[0052] 4 is the end cap, 42 is the through hole, and 43 is the locking element;

[0053] 5 is the sealing cover, and 51 is the cable outlet guard.

[0054] 6 represents the fastener;

[0055] 7 is the sealing cap, 7m is the outlet transition chamber abutting the enclosure wall, and 7n is the inlet transition chamber abutting the enclosure wall. Detailed Implementation

[0056] 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.

[0057] 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.

[0058] Furthermore, ordinal numbers such as "first" and "second" in this invention 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 expressly defined; "at least one" means one or more.

[0059] 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.

[0060] 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 housing, resulting in low efficiency for manufacturers and users in installing and maintaining the water pump assembly, the applicant filed Chinese invention patent application No. 202321262901.9 on May 19, 2023, disclosing a water pump end plug and a water pump assembly. The water pump end plug is used to seal a water pump with inlet and outlet ends at the bottom in a housing with an open end to form a water pump assembly. The water pump end plug includes an end plug body, which has a mating end, a free end, and a circumferential surface connecting the mating end and the free end. The mating end is sealed to the water pump inlet and outlet ends, and the water inlet and outlet directions of the water pump inlet and outlet ends are vertically turned to pass through a first through hole 23 and a second through hole 24 on the circumference of the housing.

[0061] Through further improvement and testing, the inventors discovered that, on the one hand, the two drainage pipes sealed within the pump end cap body using two sealing plugs created an overly complex 3D spatial conduit within the end cap body. Furthermore, the process of creating this 3D spatial conduit resulted in uneven wall thickness during injection molding in different areas of the end cap body. This led to low injection molding efficiency for individual end cap bodies, significant part deformation, and a low part yield. Therefore, further technical solutions to optimize the end cap body and the entire pump assembly are needed.

[0062] To address the technical problem that many existing water pump assemblies are one-piece designs, making it difficult to remove damaged pumps from within, and often requiring specialized disassembly tools to remove the pump assembly casing, resulting in unnecessary disassembly procedures for manufacturers, this application provides a water pump end plug kit and water pump assembly. When a water pump is damaged, the water pump end plug kit is removed from the casing, and then the end cap is removed from the casing to remove the entire water pump. This disassembly process is convenient and reduces unnecessary disassembly procedures for manufacturers. Specific embodiments are described in detail below.

[0063] Example 1

[0064] See Figures 1-6 This embodiment provides a water pump end plug kit, which is used to seal the water pump 1 in a housing 2 with an opening at one end. The water pump end plug kit includes a water pump end plug 3 and an abutment sealing cover 7.

[0065] Specifically, the pump end plug 3 includes an end plug body 30, which has a mating end (not shown in the figure), an open end (not shown in the figure), and a peripheral wall connecting the two. The end plug body 30 has a cavity enclosed by the mating end and the peripheral wall, and is provided with a partition wall 35 extending from the mating end to the open end, dividing the cavity into an inlet transition cavity N and an outlet transition cavity M. The mating end is sealed to the inlet and outlet ends of the water pump 1. An inlet section 11 and an outlet section 12 are provided at the bottom of the water pump 1. The inlet section 11 has an inlet channel for water entering the water pump 1, and the outlet section 12 has an outlet channel for water flowing out of the water pump 1. The mating end seals onto the inlet section 11 and outlet section 12 of the water pump 1. The outlet transition cavity N and the inlet transition cavity M are respectively connected to the outlet section 12 and the inlet section 11 of the water pump 1. Both the outlet section 12 and the inlet section 11 are located at the outlet end of the water pump. The side wall of the end plug body 30 has an outlet hole (not shown in the figure) and an inlet hole (not shown in the figure) corresponding to the outlet transition cavity N and the inlet transition cavity M, respectively. The abutment sealing cover 7 abuts against the open end of the end plug body 30, forming a mutually sealed and isolated inlet transition cavity N and outlet transition cavity M. Simultaneously, the abutment sealing cover 7 is detachably connected to the housing 2.

[0066] In one specific embodiment, see [reference] Figure 1 , Figure 5 and Figure 6 The sealing cap 7 extends vertically towards 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 sealingly abutting against the inner walls of the inlet transition cavity N and the outlet transition cavity M. This facilitates the direct demolding of the end plug body 30 during the manufacturing process using a top-to-bottom mold separation method, and places the inlet transition cavity N and the outlet transition cavity M inside the end plug body 30, making full use of the space of the end plug body 30. This is suitable for thin-wall injection molding manufacturing methods, resulting in more efficient production. By cleverly designing the inlet transition cavity N and the outlet transition cavity M, the existing technology of setting 3D connecting pipes inside the end plug body 30 is avoided, as well as the technical problem that the end plug body 30 cannot be manufactured using thin-wall injection molding, thus avoiding the impact on production efficiency.

[0067] On the other hand, the inventors discovered that the overall solid volume of the end plug body in the prior art is too large, resulting in a heavy weight for individual parts, requiring more injection molding materials during manufacturing, and thus higher costs per part. In this embodiment, since the inlet transition cavity N and the outlet transition cavity M occupy most of the solid volume of the end plug body 30, its solid volume is reduced, further reducing the raw materials required in the injection molding process, and further reducing the weight of the entire end plug body 30. This improves manufacturing efficiency while also reducing production costs.

[0068] In one specific embodiment, see [reference] Figure 1 , Figure 5 and Figure 6 The mating end of the end plug body 30 is provided with an abutment platform (not shown in the figure) that elastically seals against the inlet and outlet ends of the water pump 1. The abutment platform is provided with an inlet interface 33 and an outlet interface 34. The inlet interface 33 and the outlet interface 34 are respectively connected to the inlet transition chamber M and the outlet transition chamber N, and the inlet interface 33 and the outlet interface 34 can respectively seal against the inlet 11 and the outlet 12.

[0069] In one specific embodiment, see [reference] Figure 1 and Figure 6 In the area near the contact platform of the end plug body 30, a portion of the sidewall of the end plug body 30 is recessed to form a weight-reducing zone (not shown in the figure), which is the hollowed-out area shown in the figure. The sidewall of the weight-reducing zone is parallel to the sidewall of the end plug body 30, and the water inlet and outlet are located on the sidewall of the weight-reducing zone. By setting this weight-reducing zone, the weight of the entire end plug body 30 is reduced, thus reducing the amount of raw materials required to manufacture the end plug body 30. At the same time, since the sidewall of the weight-reducing zone is parallel to the sidewall of the end plug body 30, when the end plug body 30 is subsequently installed into the housing 2, it helps to increase the sealing effect on the water pump 1, preventing water from leaking out from the gap between the end plug body 30 and the housing 2.

[0070] In one specific embodiment, see [reference] Figure 1 and Figure 6 The pump end plug 3 also includes an inlet boss 31 and an outlet boss 32, which respectively seal and elastically abut against the inlet and outlet holes, and are both fixedly connected to the side wall of the weight reduction zone. In order to achieve elastic sealing abutment between the end plug body 30 and the housing 2, at least one reinforcing rib (not shown in the figure) is fixedly connected to the outer side wall of the inlet boss 31 and the outlet boss 32 in the weight reduction zone, which can enhance the connection reliability between the inlet boss 31 and the outlet boss 32 and the weight reduction zone.

[0071] In one specific embodiment, see [reference] Figure 1 , Figure 4 , Figure 5 and Figure 6 The end plug body 30 is made of elastic material. When the water inlet interface 33, water outlet interface 34, water inlet boss 31, and water outlet boss 32 of the end plug body 30 are respectively connected to the water inlet 11, water outlet 12 of the water pump 1 and the water delivery port (not shown in the figure) and water suction port (not shown in the figure) of the floor scrubber body, the elastic deformation of the end plug body 30 itself can be used to eliminate the gap between it and the rigid water inlet 11, water outlet 12 of the water pump 1 and the water delivery port and water suction port of the floor scrubber body. In addition, when the end plug body 2 is subsequently installed in the housing 2, the outer wall of the housing 2 can further support the outer peripheral wall of the end plug body 30 to prevent leakage from the various external interfaces of the end plug body 30 under a certain water flow pressure.

[0072] Example 2

[0073] Based on the same inventive concept, the inventor proposed a water pump assembly 100, see reference. Figures 2-6 The water pump assembly 100 includes a water pump 1, a housing 2 that houses the water pump 1, and a water pump end plug kit according to Embodiment 1. Specifically, the water pump end plug kit includes a water pump end plug 3 and an abutment sealing cover 7. The water pump end plug 3 includes an end plug body 30, which is disposed inside the housing 2, and one end of the end plug body 30 is in sealing contact with the water pump 1. The abutment sealing cover 7 is in sealing contact with the other end of the end plug body 30.

[0074] The housing 2 includes at least one open end (not shown in the figure) to facilitate the installation and removal of the sealing cover 7. The sealing cover 7 is detachably connected to the housing 2. For ease of distinction, in the following description, the open end connected to the sealing cover 7 will be referred to as the large-mouth end. Simultaneously, a mounting cavity (not shown in the figure) for assembling the water pump 1 is provided inside the housing 2. The water pump 1 can be cylindrical as shown in the figure, and correspondingly, the mounting cavity is cylindrical. When the water pump 1 is assembled in the mounting cavity, the outer side of the water pump 1 abuts against the inner wall of the mounting cavity, thereby stably assembling it in the mounting cavity and preventing the water pump 1 from shaking in the mounting cavity when the housing 2 collides with other devices.

[0075] In use, the pump end plug 3 seals the pump 1 inside the housing 2. It is detachably plugged into the large opening end of the housing 2. After the water inlet and outlet directions of the pump 1 are vertically reversed, it passes through the first through hole 23 and the second through hole 24 on one side of the housing 2. When disassembling the housing 2, the pump end plug 3 is removed from the large opening end of the housing 2. When assembling the housing 2, the pump end plug 3 is aligned with the large opening end and then elastically pressed into place. When the pump 1 inside the housing 2 needs to be replaced due to damage, the user only needs to remove the pump end plug 3 from the large opening end, rotate the pump assembly 100 so that the large opening end of the housing 2 faces the direction of gravity, and the pump 1 will slowly slide out of the housing 2 under the action of gravity. After replacing the pump 1 inside the housing 2, the pump end plug 3 is reassembled into the housing 2 from the large opening end. The entire process of replacing the pump 1 is very convenient.

[0076] In this embodiment, refer to Figure 1 , Figures 3 to 6Referring to Embodiment 1, an inlet interface 33 and an outlet interface 34 are provided inside the pump end plug 3. When water passes through the pump end plug 3, it is 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 inlet interface 33 is connected to the inlet section 11 of the water pump 1. The inlet interface 33 is connected to the inlet hole through the inlet adapter cavity N. The inlet section 11, the inlet connector 33, the inlet adapter cavity N, the inlet hole, and the water supply tank of the floor scrubber (not shown in the figure) are connected in sequence to form an inlet pipeline. At this time, the water supply tank of the floor scrubber pours water into the water pump 1. The outlet section 12 of the water pump 1 is connected to the outlet interface 34. The outlet interface 34 is connected to the outlet hole through the outlet adapter cavity M to form an outlet pipeline. At this time, water flows out of the water pump 1. Through the inlet interface 33 and the outlet interface 34, as well as the mutually isolated inlet transition chamber N and outlet transition chamber M, the water does not interfere with each other during the process of filling or emptying the water pump 1. The water pump end plug 3, which has the inlet interface 33 and the outlet interface 34 built in, makes the water pipeline connection, which originally required two pipelines to connect to and from the water pump 1 and then to the target interface, much simpler. It only requires the water pump 1 to be aligned with the axis of the abutment platform of the water pump end plug 3 to achieve the connection of the water pump 1's inlet 11, outlet 12, inlet interface 33 and outlet interface 34. At the same time, the inlet and outlet holes are connected to the water inlet and outlet of the floor scrubber body, thus realizing the connection of the four pipeline interfaces of the water pump assembly 100 installed in the floor scrubber body. In short, by adopting the water pump assembly 100 of this embodiment, only two connection actions are required to achieve the same result as the existing technology which requires four pipe interfaces, 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 pump.

[0077] In one specific embodiment, see [reference] Figure 3 and Figure 4 The sealing cap 7 is flush with the end face of the housing 2 to prevent instability and damage due to uneven placement. The housing 2 has a horizontal connecting part 25 at the bottom edge that mates with the sealing cap 7, which can be screwed in. The sealing cap 7 has a threaded hole (not shown in the figure) corresponding to the connecting part 25. The use of screw fastening here further increases the sealing strength between the sealing cap 7 and the housing 2, thereby further improving the reliability of the seal between the sealing cap 7 and the inlet transition cavity N and the outlet transition cavity M of the end plug body 30.

[0078] In one specific embodiment, a first through hole 23 and a second through hole 24 are respectively provided on the housing 2 corresponding to the water inlet and water outlet. In this embodiment, referring to Embodiment 1, an inlet protrusion 31 and an outlet protrusion 32 are respectively provided at the water inlet and water outlet, and a weight reduction area is provided on the side of the end plug body 30. Multiple reinforcing ribs are provided on the outer side of the inlet protrusion 31 and the outlet protrusion 32. The inlet protrusion 31 and the outlet protrusion 32 are both higher than the reinforcing ribs, and the height difference between the inlet protrusion 31 and the outlet protrusion 32 and the reinforcing ribs is greater than or equal to the wall thickness of the first through hole 23 and the second through hole 24. This can ensure that when the entire water pump assembly 100 is installed into the floor scrubber body, it can more fully and elastically abut against the water inlet (not shown in the figure) and water outlet (not shown in the figure) of the floor scrubber body, ensuring that the water inlet and water outlet extend more fully into the inlet protrusion 31 and the outlet protrusion 32. Meanwhile, the inlet protrusion 31 and the outlet protrusion 32 can be set to protrude above the housing 2, and the elasticity of the inlet protrusion 31 and the outlet protrusion 32 can be used to quickly extend and fill the gap between the housing 2 and the floor scrubber body.

[0079] In one specific embodiment, see [reference] Figure 6 The water pump 1 has an electrical wire end (not shown in the figure) relative to the inlet and outlet ends. The electrical wire end has two power taking electrodes (not shown in the figure). A sealing cover 5 is placed on the top of the electrical wire end to cover the electrical wire end. Two outlet guards 51 corresponding to the two power taking electrodes of the water pump 1 are opened on the end face of the sealing cover 5. The power taking electrodes can be accommodated in the outlet guards 51 to protect the power taking electrodes.

[0080] In one specific embodiment, a positioning groove or positioning protrusion is provided in the middle of the sealing cover 5, and a corresponding positioning protrusion or positioning groove is provided in the middle of the electrical wire end of the water pump 1. (See reference...) Figure 6 An example is given where a positioning groove (not shown in the figure) is set in the middle of the sealing cover 5 and a positioning protrusion 13 is set in the middle of the power cord end of the water pump 1. When the sealing cover 5 is placed on the power cord end of the water pump 1, since the outer diameter of the positioning groove is adapted to the outer diameter of the positioning protrusion 13, the positioning protrusion 13 can be inserted into the positioning groove to stably fit the sealing cover 5 on the water pump 1, so as to avoid the sealing cover 5 shaking and damage to the power taking electrode, and further improve the stability of the sealing cover 5.

[0081] In one specific embodiment, see [reference] Figure 5 and Figure 6An opening (hereinafter referred to as the small opening) is provided at the port of the housing 2 opposite to the sealing cover 7. The small opening and the sealing cover 5 form a wiring cavity P, which accommodates the electrode leads electrically connected to the two power electrodes. A partition 21 is provided within the wiring cavity P to seal the sealing cover 5, thus separating the mounting cavity for assembling the water pump 1 from the wiring cavity P used for connecting the electrode leads to the water pump 1, protecting electrical safety. Two power sockets or pins a1 and a2 are provided on the side wall of the wiring cavity P, with their orientation consistent with the orientation of the first through hole 23 and the second through hole 24. The partition 21 has outlet holes (not shown in the figure) corresponding to the two power electrodes. The electrode leads can pass through the outlet holes into the wiring cavity P and electrically connect to the power sockets / pins a1 and a2 to supply power to the water pump 1. Meanwhile, positive and negative electrodes that mate with the power socket / pins a1 and a2 can be set on the body of the floor scrubber. When the user removes or installs the water pump assembly 100 onto the floor scrubber body at one time, the electrical and water connections of the water pump assembly 100 can be disconnected or connected at one time, which improves maintenance efficiency.

[0082] When using the pump, first pass the two electrode leads of the pump through the two outlet holes of the partition 21. Then, with the large opening of the housing 2 facing upward and the wire end of the pump 1 facing downward, slide the pump into the housing 2 until the electrode end of the pump 1 touches the partition 21. Then, continue to press the abutting platform of the pump end plug 3 toward the water inlet 11 and the water outlet 12 of the pump 1 until the pump 1 touches the abutting platform of the pump end plug 3, further improving the stability of the pump 1 and connecting the water inlet interface 33 and the water outlet interface 34 to the water inlet 11 and the water inlet 31 respectively. In this way, the alignment and connection of the water inlet and outlet ends of the pump 1 with the pump end plug 3 is completed. After the connection is completed, the exposed end face of the pump end plug 3 and the end face of the large opening end of the housing 2 are kept flush.

[0083] In one specific embodiment, see [reference] Figure 6The two power sockets / pins a1 and a2 of housing 2 are on the same plane as the first through hole 23 and the second through hole 24 of housing 2. Geometrically, the straight line formed by the power sockets / pins a1 and a2, and the straight line formed by the centers of the first through hole 23 and the second through hole 24, are parallel lines that must naturally lie on the same plane. The statement that the two power sockets / pins a1 and a2 of housing 2 are on the same plane as the first through hole 23 and the second through hole 24 means that the power sockets / pins a1 and a2, as well as the first through hole 23 and the second through hole 24, are simultaneously provided on the side wall of housing 2. This allows for convenient and quick installation of a flat side wall of housing 2 onto the corresponding flat inner side wall of the floor scrubber body. Furthermore, if the power sockets / pins a1 and a2 and the first through hole 23 and the second through hole 24 are respectively located on the stepped surfaces of the housing 2 at two different heights, then the corresponding mating surfaces of the floor scrubber body should also be stepped surfaces, 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.

[0084] In one specific embodiment, see [reference] Figure 6 The water pump assembly 100 also includes an end cap 4, which is detachably connected to the wiring cavity P. Unlike the conventional housing 2, the end cap 4 in this embodiment can be removed from the small opening end of the housing 2. When the manufacturer needs to replace the power socket / pin a1, a2 inside the end cap 4, the damaged power socket / pin a1, a2 inside the housing 2 can be removed after the end cap 4 is removed from the small opening end of the housing 2.

[0085] In this embodiment, it should be noted that the aforementioned water inlet, water outlet, water inlet 11, water outlet 12, positive electrode, and negative electrode 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.

[0086] In one specific embodiment, the entire sealing cover 5 is made of flexible material. Since the water inside the water pump 1 is prone to leaking out of the housing 2, the flexible sealing cover 5 is set at one end of the water pump 1 near the end cover 4. Together with the flexible water pump end plug 3, the water pump 1 is sealed and protected. The overall sealing performance of the water pump assembly 100 can be further improved by entering from the large end and the small end of the housing 2.

[0087] In one specific embodiment, see [reference] Figure 5 and Figure 6The wiring cavity P is provided with a connecting post 22, and the end cover 4 is provided with a through hole 42 corresponding to the connecting post 22. The end cover 4 is detachably connected to the wiring cavity P by a locking member 43, wherein the locking member 43 passes through the through hole 42 and is detachably connected to the connecting post 22. The end cover 4 can be easily removed from the small opening end for easy replacement of the power socket / pins a1 and a2.

[0088] In one specific embodiment, see [reference] Figure 2 and Figure 6 At least one fastening element 6 is provided on each opposite side of the housing 2 for securing the entire water pump assembly 100 inside the floor scrubber body (not shown in the figure). For details, please refer to... Figure 2 At least one fastening member 6 extends outward from the small opening end of the housing 2 along both opposite sides. The fastening member 6 first extends downward from the root of the small opening end of the housing 2, and after reaching the lowest point, it turns back and extends upward, forming a V-shaped deformation part (not shown in the figure) at the root of the small opening end of the housing 2. The fastening member 6 extends upward from the lowest point of the turning point at a certain angle, forming a snap-fit ​​sliding surface on the surface of the fastening member 6 (not shown in the figure). When the snap-fit ​​sliding surface of the fastening member 6 continues to extend along a specific angle to the columnar arc top near the small opening end of the housing 2, the two opposite fastening members 6 extend outward from both sides of the snap-fit ​​sliding surface away from the two opposite fastening members 6 to form snap-fit ​​parts (not shown in the figure). The upper surface of the snap-fit ​​part is provided with a snap-fit ​​abutting platform that cooperates with the lower surface of the hook inside the floor scrubber body (not shown in the figure). The fastening member 6 continues to extend upward along a specific angle on the snap-fit ​​sliding surface until a slightly outwardly curved pressing part (not shown in the figure) is formed at the end of the fastening member 6.

[0089] When the user installs the water pump assembly 100 into the floor scrubber body, in addition to the water inlet and power outlet of the water pump assembly 100 cooperating with the components inside the floor scrubber body, the snap-fit ​​sliding surface of the locking member 6 can continuously slide downwards along the inner sidewall of the opposite hook. Under the combined action of the slope of the snap-fit ​​sliding surface and the elastic stress of the V-shaped deformation part, when the water pump assembly 100 slides to a certain extent along the snap-fit ​​sliding surface of the locking member 6, the snap-fit ​​part will spring towards the inner sidewall of the opposite hook and form a stable elastic snap-fit ​​with it. When the user needs to remove the water pump assembly 100, he only needs to press the pressing part of the locking member 6 first. In this way, the opposite snap-fit ​​parts will retract towards each other and eventually disengage from the inner sidewall of the hook. At this time, the user only needs to remove the entire water pump assembly 100 upwards away from the direction of the sliding snap-fit ​​to complete the separation of the water pump assembly 100 from the floor scrubber body. Traditional water pump assemblies 100 are typically fixed inside the body of the floor scrubber, requiring specialized tools for disassembly. However, in this embodiment, the water pump assembly 100 can be removed simply by manually prying open the two side latches 6 of the housing 2, significantly improving disassembly convenience and achieving truly tool-free disassembly and assembly. This also reduces the difficulty of maintaining the water pump assembly 100 for users.

[0090] In this embodiment, the water pump assembly 100 allows for easy removal of the damaged water pump 1 from the housing 2 by disassembling the water pump end plug 3 from the large end of the housing 2 and then removing the end cover 4 from the small end of the housing 2. This disassembly process is convenient, reducing unnecessary disassembly procedures for manufacturers and simplifying maintenance for users. Users can disconnect and connect the electrical and water connections of the water pump assembly 100 in a single step when removing or installing it onto the floor scrubber, improving maintenance efficiency. Using this water pump assembly, only two connection actions are required to achieve the goal of four pipe interfaces required in the prior art, improving the manufacturing efficiency of the floor scrubber. Users can also improve the efficiency and convenience of water pump maintenance when needing to replace or maintain the pump in case of failure.

[0091] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A water pump end plug kit, characterized in that, For sealing a water pump in a mounting housing with an opening at one end, the water pump end plug kit includes a water pump end plug and an abutment sealing cover. The water pump end plug includes an end plug body with a mating end and an open end. The mating end seals with the inlet and outlet ends of the water pump. The abutment sealing cover abuts with the open end of the end plug body and together they form a mutually sealed and isolated outlet transfer cavity and inlet transfer cavity. The abutment sealing cover is also detachably connected to the mounting housing. The outlet transfer cavity and the inlet transfer cavity are simultaneously connected to the outside through the side wall of the end plug body.

2. The water pump end plug kit as described in claim 1, characterized in that, The end plug body has a peripheral wall connecting the mating end and the open end, and a cavity is formed inside the end plug body through the mating end and the peripheral wall; Preferably, the end plug body is further provided with a partition wall, which extends from the mating end to the opening end, dividing the cavity inside the end plug body into an outlet transition cavity and an inlet transition cavity. Preferably, the water outlet transition cavity and the water inlet transition cavity are vertically arranged on the sealing cover to abut against the enclosure wall; The outlet transition cavity abuts against the enclosure wall and can seal against the inner wall of the outlet transition cavity; The water inlet transition cavity can be sealed against the inner wall of the enclosure.

3. The water pump assembly as described in claim 2, characterized in that, The sealing cover is flush with the end face of the mounting housing. The mounting housing has multiple horizontally arranged connecting parts, each with a screw hole. The sealing cover has a threaded hole corresponding to the screw hole. The sealing cover is detachably connected to the housing by screws, which pass through the screw holes and are threaded into the threaded holes.

4. The water pump end plug kit as described in claim 2, characterized in that, The bottom of the water pump is provided with an inlet and an outlet. The outlet and inlet transition chambers are respectively connected to the outlet and inlet of the water pump. The inlet and outlet ends of the water pump can pass through the pump end plug and the mounting housing in sequence to allow water to enter and exit the external environment. Preferably, the end plug body is sealed and abuts against the inlet and outlet ends of the water pump. The inlet part is provided with an inlet channel for entering the water pump, and the outlet part is provided with an outlet channel for flowing out of the water pump. The end seal sleeve connects the inlet and outlet parts of the water pump. Preferably, the side wall of the end plug body is provided with an outlet hole and an inlet hole corresponding to the outlet transition cavity and the inlet transition cavity, respectively; Preferably, the mating end of the end plug body that abuts against the water pump seal is provided with: The water inlet interface connects to the water inlet adapter cavity and is sealed against the water inlet section. The water outlet interface connects to the water outlet adapter cavity and is sealed to the water outlet section.

5. The water pump end plug kit as described in claim 4, characterized in that, The pump end plug also includes: The inlet boss seals and elastically abuts against the inlet hole and is fixedly connected to the side wall of the weight reduction zone. The outlet protrusion is sealed and elastically abuts against the outlet hole and is fixedly connected to the side wall of the weight reduction zone.

6. The water pump end plug kit as described in claim 5, characterized in that, Both the inlet boss and the outlet boss have at least one reinforcing rib on their outer side wall, and one side of the reinforcing rib is fixedly connected to the side wall of the weight reduction zone.

7. The water pump end plug kit as described in claim 4, characterized in that, The sidewall of the end plug body is partially recessed to form a weight-reducing zone; The sidewall of the weight reduction zone is parallel to the sidewall of the end plug body; The water inlet and outlet are located on the side wall of the weight reduction zone.

8. The water pump end plug kit as described in any one of claims 1-7, characterized in that, The end plug body is made of elastic material.

9. A water pump assembly, characterized in that, Includes a water pump, a mounting housing, and a water pump end plug assembly as described in any one of claims 1-6, wherein the water pump is disposed within the mounting housing; Preferably, the water pump is provided with an electrical wire end relative to the inlet and outlet ends, and two power-taking electrodes are provided on the electrical wire end. The water pump assembly also includes a sealing cover, which is placed on the electrical wire end. The sealing cover is provided with an outlet guard corresponding to the power-taking electrodes, and the power-taking electrodes can be accommodated in the outlet guard. Preferably, the sealing cover is provided with a positioning groove or positioning protrusion in the middle position, and the water pump's wire end is provided with a corresponding positioning protrusion or positioning groove in the middle position. Preferably, the housing has an opening at the port opposite to the sealing cover, forming a wiring cavity between the opening and the sealing cover to accommodate two electrode leads; a partition is provided inside the wiring cavity to seal the sealing cover; the partition has a wire outlet hole, through which one end of the two electrode leads passes and is electrically connected to two power-generating electrodes respectively; two power-generating sockets or pins are provided on the side wall of the wiring cavity and are electrically connected to the other end of the two electrode leads respectively.

10. The water pump assembly as claimed in claim 9, characterized in that, It also includes an end cap, which is detachably connected to the wiring cavity; Preferably, a connecting post is provided in the wiring cavity, and a through hole is provided on the end cover corresponding to the connecting post. The end cover is detachably connected to the wiring cavity through a locking member, and the locking member is detachably connected to the connecting post through the through hole. Preferably, at least one fastening element is provided on each of the opposite sides of the mounting housing.

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