Water supply device

Abstract

The utility model relates to the technical field of water supply devices, in particular to a water supply device. The water supply device comprises a pump body, a waterway plate and a limiting piece, wherein the pump body comprises a first butt joint part; the water path plate comprises a water path system and a second butt joint part, and the first butt joint part is in butt joint with the second butt joint part in the first direction so as to communicate the pump body with the water path system; the limiting piece is detachably connected with the waterway plate, and the check block makes contact with the side, facing the second direction, of the pump body; wherein the first direction is opposite to the second direction. Compared with the prior art, the pump body can be limited through the limiting piece, and the stability of butt joint of the pump body and the waterway system is improved.

Description

Technical Field

[0001] This application relates to the field of water supply device technology, specifically to a water supply device. Background Technology

[0002] As income levels rise, people have higher demands for quality of life. Water supply systems, which can deliver water with the required temperature and composition, are widely welcomed by users. A pump is a common component in water supply systems, providing the circulation power for the fluid. The pump needs to connect to the water system to facilitate fluid flow. However, the pump vibrates while moving the fluid, which can cause it to detach from the water system, leading to leaks, electrical malfunctions, and other problems, severely impacting the stability of the water supply system. Utility Model Content

[0003] In view of this, this application provides a water supply device that can improve the stability of the connection between the pump body and the water system.

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a water supply device, including a pump body, a water circuit plate, and a limiting member, wherein the pump body includes a first docking portion; the water circuit plate includes a water circuit system and a second docking portion, the first docking portion docking with the second docking portion along a first direction to connect the pump body and the water circuit system; the limiting member is detachably connected to the water circuit plate, and the limiting member contacts the side of the pump body facing a second direction; wherein the first direction is opposite to the second direction.

[0005] In one specific embodiment, the limiting member includes a stop block, the water circuit plate is provided with an installation groove, the installation groove includes a first inner wall and a second inner wall, and the second docking part is disposed on the first inner wall; the water circuit plate also includes a third fixing structure, the third fixing structure is disposed on the second inner wall, the stop block is disposed in the installation groove and is detachably connected to the third fixing structure, and the side of the stop block facing the first direction contacts the pump body.

[0006] In one specific embodiment, the third fixing structure includes a through hole, the stop block is provided with a screw hole, and the water supply device further includes a first threaded component, which passes through the through hole and is screwed into the screw hole.

[0007] In one specific embodiment, the third fixing structure includes a magnetic element, the stop block is magnetic, and the magnetic element attracts the stop block to detachably connect the stop block to the water channel plate.

[0008] In one specific embodiment, the first inner wall and the second inner wall are adjacent to each other and perpendicular to each other, the second inner wall is parallel to the first direction, and in the direction parallel to the first inner wall, the third fixing structure is disposed outside the projection of the pump body on the second inner wall.

[0009] In one specific embodiment, the limiting member includes a limiting band, the limiting band includes a pressing section and a first fixing structure, the water channel plate includes a second fixing structure, the second fixing structure is disposed adjacent to the second docking portion; the first fixing structure is disposed at one end of the limiting band, the second fixing structure is detachably connected to the first fixing structure, the other end of the limiting band is fixed to the water channel plate, the limiting band encircles the pump body, and the pressing section abuts against the side surface of the pump body facing the second direction; or, there are two first fixing structures, two first fixing structures are respectively disposed at both ends of the limiting band, there are two second fixing structures, the first fixing structure and the second fixing structure are detachably connected in a one-to-one correspondence, the limiting band encircles the pump body, and the pressing section abuts against the side surface of the pump body facing the second direction.

[0010] In one specific embodiment, the limiting band is elastic, and when the limiting band wraps around the pump body, the limiting band is stretched; or, the length of the limiting band can be adjusted.

[0011] In one specific embodiment, the first docking part is sleeved inside the second docking part, and the outer peripheral surface of the first docking part is provided with a limiting protrusion, the limiting protrusion abutting against the inner peripheral surface of the second docking part; and / or, the inner peripheral surface of the second docking part is provided with the limiting protrusion, the limiting protrusion abutting against the outer peripheral surface of the first docking part.

[0012] In one specific embodiment, the water system includes a heat tank and a heat exchanger. The pump body has an inlet and an outlet. The first docking portion includes a first sleeve and a second sleeve, with the inlet located in the first sleeve and the outlet located in the second sleeve. The second docking portion includes a third sleeve and a fourth sleeve. The third sleeve connects to the heat tank, and the fourth sleeve connects to the heat exchanger. The third sleeve is fitted around the outer periphery of the first sleeve, and the fourth sleeve is fitted around the outer periphery of the second sleeve. At least one of the outer peripheral surfaces of the first sleeve, the second sleeve, the third sleeve, and the fourth sleeve is provided with the limiting protrusion.

[0013] In one specific embodiment, the pump body further includes a pump body main body and a fourth fixing structure, the water circuit plate includes a fifth fixing structure, one end of the pump body main body is connected to the first docking part, the fifth fixing structure is disposed adjacent to the second docking part, and the fourth fixing structure is disposed adjacent to the first docking part; one of the fourth fixing structure and the fifth fixing structure is a hook and the other is a slot, the hook and the slot are detachably connected to limit the pump body in parallel with the second direction.

[0014] The beneficial effects of this application include: by setting a limiting member for the pump body, after the first docking part of the pump body docks with the second docking part along the first direction, the limiting member can be connected to the water circuit board and contact the side of the pump body facing the second direction. When the pump body loosens and retreats in the second direction, it can abut against the pump body, thereby preventing the pump body from loosening from the water circuit system, reducing the probability of water leakage, electrical leakage and other faults, and thus effectively improving the stability of the water supply device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the water supply device provided in this application;

[0017] Figure 2 This is a structural schematic diagram of the water circuit board and pump body assembly provided in this application;

[0018] Figure 3 This is a schematic diagram of the structure where the water circuit board and pump body are separated, as provided in this application;

[0019] Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of the water supply device provided in this application;

[0020] Figure 5 yes Figure 4 Enlarged structural diagram of region A in the middle;

[0021] Figure 6 This is a structural schematic diagram of the water circuit board, pump body, and limiting component assembly provided in this application;

[0022] Figure 7 This is another structural schematic diagram of the water circuit board, pump body, and limiting component assembly provided in this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Water supply device; 2. Pump body; 21. First docking part; 211. First sleeve; 212. Second sleeve; 213. Limiting protrusion; 22. Pump body main body; 23. Inlet; 3. Water circuit plate; 31. Mounting groove; 311. First inner wall; 312. Second inner wall; 32. Second docking part; 321. Third sleeve; 322. Fourth sleeve; 33. Through hole; 34. Magnetic component; 35. Water circuit system; 4. Stop block; 5. Screw hole; First direction X; Second direction Y. Detailed Implementation

[0025] In this application, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] As income levels rise, people have higher demands for quality of life. Water supply systems, which can deliver water with the required temperature and composition, are widely welcomed by users. A pump is a common component in water supply systems, providing the circulation power for the fluid. The pump needs to connect to the water system to facilitate fluid flow. However, the pump vibrates while moving the fluid, which can cause it to detach from the water system, leading to leaks, electrical malfunctions, and other problems, severely impacting the stability of the water supply system.

[0031] In order to improve or solve the above technical problems, the inventors of this application, after long-term research, have proposed at least the following embodiments.

[0032] See Figures 1 to 7 , Figure 1 This is a schematic diagram of an embodiment of the water supply device provided in this application. Figure 2 This is a structural schematic diagram of the water circuit board and pump body assembly provided in this application. Figure 3 This is a schematic diagram of the structure where the water circuit board and pump body are separated, as provided in this application. Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of the water supply device provided in this application. Figure 5 yes Figure 4 A magnified structural diagram of region A in the middle. Figure 6 This is a structural schematic diagram of the water circuit board, pump body, and limiting component assembly provided in this application. Figure 7 This is another structural schematic diagram of the water circuit board, pump body, and limiting component assembly provided in this application.

[0033] To address the aforementioned technical problems, this application provides a water supply device 1. The water supply device 1 may include a pump body 2, a water circuit board 3, and a limiting member. The pump body 2 includes a first docking portion 21, and the water circuit board 3 includes a water circuit system 35 and a second docking portion 32. The first docking portion 21 docks with the second docking portion 32 along a first direction X, thereby connecting the pump body 2 and the water circuit system 35. The limiting member is detachably connected to the water circuit board 3 and can contact the side of the pump body 2 facing the second direction Y. The first direction X is opposite to the second direction Y.

[0034] In the structure provided in this specific embodiment, by setting a limiting member for the pump body 2, after the first docking part 21 of the pump body 2 docks with the second docking part 32 along the first direction X, the limiting member can be connected to the water circuit plate 3 and contact the side of the pump body 2 facing the second direction Y. When the pump body 2 loosens and retreats in the second direction Y, it can abut against the pump body 2, thereby preventing the pump body 2 from loosening from the water circuit system 35, reducing the probability of water leakage, electric leakage and other faults, and thus effectively improving the stability of the water supply device 1.

[0035] Optionally, the first docking part 21 and the second docking part 32 can be connected by a socket joint, whereby the first docking part 21 can be inserted into the second docking part 32 along the first direction X to achieve the socket joint between the first docking part 21 and the second docking part 32.

[0036] In one specific embodiment, the limiting member may include a stop block 4. The water channel plate 3 is provided with a mounting groove 31, which may include a first inner wall 311 and a second inner wall 312. A second mating portion 32 is disposed on the first inner wall 311. The water channel plate 3 also includes a third fixing structure disposed on the second inner wall 312. The stop block 4 is disposed within the mounting groove 31, and the stop block 4 is detachably connected to the third fixing structure. The side of the stop block 4 facing the first direction X contacts the pump body 2.

[0037] In the structure provided in this specific embodiment, the limiting member can be in the form of a stop block 4. When the pump body 2 tends to retreat in the second direction Y, the stop block 4, which is connected to the water circuit plate 3 through the third fixing structure, can abut against the pump body 2, thereby preventing the pump body 2 from coming off the water circuit system 35. This can reduce the probability of water leakage, electrical leakage and other faults, thereby effectively improving the stability of the water supply device 1.

[0038] In one specific embodiment, the third fixing structure may include a through hole 33, and the stop block 4 is provided with a screw hole 5. The water supply device 1 also includes a first threaded component, which passes through the through hole 33 and is screwed into the screw hole 5, so that the stop block 4 can be detachably connected to the water circuit plate 3 by means of the first threaded component, so that the stop block 4 can more stably limit the pump body 2 and improve the stability of the connection between the pump body 2 and the water circuit system 35.

[0039] In one specific embodiment, the third fixing structure may include a magnetic element 34, and the stop 4 is magnetic. The magnetic element 34 attracts the stop 4 to detachably connect the stop 4 to the water circuit board 3. Besides screw connection, the third fixing structure and the stop 4 can be connected magnetically. The third fixing structure may have the opposite polarity to the stop 4, thereby detachably connecting the stop 4 to the water circuit board 3. This allows the stop 4 to more stably limit the pump body 2, improving the stability of the connection between the pump body 2 and the water circuit system 35.

[0040] The first inner wall 311 and the second inner wall 312 can be arranged opposite to each other or adjacent to each other. Figure 6 The first inner wall 311 and the second inner wall 312 are arranged opposite to each other. When the pump body 2 tends to retreat in the second direction Y, the stop block 4 can abut against the pump body 2 and the second inner wall 312. Figure 7The first inner wall 311 and the second inner wall 312 are arranged adjacent to each other. When the pump body 2 shows a tendency to retreat in the second direction Y, the stop block 4 abuts against the pump body 2, thereby causing the first docking part 21 and the second docking part 32 to be tightly connected, which can improve the stability of the connection between the pump body 2 and the water system 35.

[0041] In one specific embodiment, the first inner wall 311 and the second inner wall 312 are adjacent to each other and perpendicular to each other. The second inner wall 312 is parallel to the first direction X, and in the direction parallel to the first inner wall 311, the third fixing structure is disposed outside the projection of the pump body 2 onto the second inner wall 312.

[0042] In the structure provided in this embodiment, by setting the third fixing structure outside the projection of the pump body 2 on the second inner wall 312, the obstruction caused by the pump body 2 to the third fixing structure can be reduced, which is conducive to the installation of the stop block 4. In this way, the stability of the connection between the pump body 2 and the water system 35 is improved, while the assembly efficiency of the water supply device 1 is also improved.

[0043] In one specific embodiment, the limiting member may include a limiting band. The limiting band includes a pressing section and a first fixing structure, and the water channel plate 3 includes a second fixing structure, which is disposed adjacent to the second docking portion 32.

[0044] Optionally, the first fixing structure can be set at one end of the limiting band, the second fixing structure is detachably connected to the first fixing structure, and the other end of the limiting band is fixed to the water channel plate 3. The limiting band surrounds the pump body 2, and the pressure section abuts against the surface of the pump body 2 facing the second direction Y.

[0045] Optionally, there can be two first fixing structures, which are respectively set at both ends of the limiting band. There can also be two second fixing structures. The first fixing structures and the second fixing structures are detachably connected in a one-to-one correspondence. The limiting band encircles the pump body 2, and the pressure section abuts against the surface of the pump body 2 facing the second direction Y.

[0046] In the structure provided in this embodiment, the limiting member in the form of a limiting band can encircle the pump body 2, thereby increasing the tightness of the connection between the pump body 2 and the water circuit board 3. In this way, the displacement of the pump body 2 in the second direction Y is limited by the pressure relationship between the limiting band and the pump body 2, thereby reducing the probability of failures such as water leakage and electrical leakage, and thus effectively improving the stability of the water supply device 1.

[0047] In one specific embodiment, the limiting band can be elastic, and can be stretched when it wraps around the pump body 2. In the structure provided in this embodiment, the limiting band undergoes elastic deformation when wrapping around the pump body 2, and the resulting elastic force can further increase the pressure of the limiting band on the pump body 2 in the first direction X, thereby effectively improving the tightness of the connection between the pump body 2 and the water channel plate 3. Furthermore, the elastic limiting band can also adapt to the limiting requirements of pump bodies 2 of different models and sizes, thereby improving the versatility of the limiting component.

[0048] Optionally, the length of the limiting band can be adjusted. Compared to a fixed-length limiting band or stop 4, an adjustable-length limiting band can adapt to the limiting requirements of pump bodies 2 of different models and sizes, thereby improving the versatility of the limiting component. When installing the pump body 2 and fixing the limiting band, the limiting band can be kept at a relatively loose length initially. After the pump body 2 is installed, the limiting band can be tightened according to the actual limiting requirements. The adjustable-length limiting band can also increase the flexibility and convenience of the water supply device 1 assembly process, and reduce the production and maintenance costs of the water supply device 1.

[0049] In one specific embodiment, the first docking part 21 is fitted inside the second docking part 32, and the outer peripheral surface of the first docking part 21 may be provided with a limiting protrusion 213, which abuts against the inner peripheral surface of the second docking part 32.

[0050] Optionally, the inner circumferential surface of the second docking portion 32 may also be provided with a limiting protrusion 213, which abuts against the outer circumferential surface of the first docking portion 21.

[0051] In the structure provided in this embodiment, the limiting protrusion 213 can be provided on at least one of the outer peripheral surface of the first docking part 21 and the inner peripheral surface of the second docking part 32. By providing the limiting protrusion 213, the roughness between the outer peripheral surface of the first docking part 21 and the inner peripheral surface of the second docking part 32 can be increased, thereby increasing the frictional resistance encountered by the pump body 2 when it is loosened along the second direction Y, thereby improving the tightness of the connection between the pump body 2 and the water circuit board 3, reducing the probability of water leakage, electric leakage and other faults, and effectively improving the stability of the water supply device 1.

[0052] In one specific embodiment, the water system 35 may include a heat tank and a heat exchanger. The pump body 2 has an inlet 23 and an outlet. The first docking part 21 includes a first sleeve 211 and a second sleeve 212. The inlet 23 is disposed in the first sleeve 211, and the outlet is disposed in the second sleeve 212. The second docking part 32 may include a third sleeve 321 and a fourth sleeve 322. The third sleeve 321 is connected to the heat tank, and the fourth sleeve 322 is connected to the heat exchanger. The third sleeve 321 may be sleeved around the outer periphery of the first sleeve 211, and the fourth sleeve 322 may be sleeved around the outer periphery of the second sleeve 212.

[0053] Among them, at least one of the outer peripheral surface of the first sleeve 211, the outer peripheral surface of the second sleeve 212, the inner peripheral surface of the third sleeve 321, and the inner peripheral surface of the fourth sleeve 322 is provided with a limiting protrusion 213.

[0054] Described in conjunction with the actual water supply system 35 of the water supply device 1, the pump body 2 can be used to facilitate the flow of fluid between the hot tank and the heat exchanger. Specifically, the hot tank can be used to store and heat the heat exchange medium, maintaining it at a high temperature to store a large amount of energy. The heat exchanger can be connected to the hot tank. As the high-temperature heat exchange medium in the hot tank flows through the heat exchanger, it can transfer its energy to the low-temperature water flowing through it, allowing the low-temperature water to quickly acquire a large amount of energy and rise to the required temperature. The high-temperature heat exchange medium, having released some energy in the heat exchanger, experiences a temperature drop and can therefore flow back to the hot tank to begin storing energy again for future use. The heat exchange medium can be water.

[0055] For a typical water supply device 1, if it is necessary to quickly raise the temperature of low-temperature water to the required temperature, a high-power heater is required, and the heating speed of the heater may not be able to meet the immediate demand for water supply. However, through a water circuit structure that combines a heat tank and a heat exchanger, a large amount of energy can be stored in the heat tank. This energy can be quickly released through the heat exchanger when needed, thereby rapidly raising the temperature of low-temperature water to the required temperature. Since the heat tank can slowly store a large amount of energy when heat exchange is not required, the water supply device 1 provided in this embodiment does not require a high-power heater, which can effectively reduce the production cost of the water supply device 1 and improve its availability.

[0056] In the structure provided in this embodiment, the first sleeve 211 and the third sleeve 321 are connected to the hot tank, enabling the fluid in the hot tank to be input into the pump body 2. The second sleeve 212 and the fourth sleeve 322 are connected to the heat exchanger, allowing the pump body 2 to pump the fluid flowing out of the hot tank to the heat exchanger for heat exchange through the second sleeve 212 and the fourth sleeve 322. This allows the pump body 2 to realize the flow of fluid between the hot tank and the heat exchanger, thereby completing the heat exchange process. The setting of the limiting protrusion 213 can improve the tightness of the connection between the first sleeve 211 and the third sleeve 321, and / or the second sleeve 212 and the fourth sleeve 322, effectively improving the stability of the water supply device 1.

[0057] In one specific embodiment, the pump body 2 may further include a pump body main body 22 and a fourth fixing structure, and the water circuit plate 3 includes a fifth fixing structure. One end of the pump body main body 22 is connected to the first docking part 21, the fifth fixing structure is disposed adjacent to the second docking part 32, and the fourth fixing structure is disposed adjacent to the first docking part 21. One of the fourth fixing structure and the fifth fixing structure is a hook and the other is a slot, and the hook and the slot are detachably connected to limit the pump body 2 in the parallel second direction Y.

[0058] In the structure provided in this specific embodiment, in addition to the limiting component, the pump body 2 and the water circuit plate 3 can also be detachably connected via a fourth fixing structure and a fifth fixing structure. When the pump body 2 and the water circuit plate 3 are docked, the fourth fixing structure and the fifth fixing structure can be detachably connected in the form of hooks and slots, thereby limiting the pump body 2 in parallel with the second direction Y, which can prevent the pump body 2 from loosening in the second direction Y to a certain extent, thereby promoting a tight docking between the first docking part 21 and the second docking part 32, and improving the stability of the docking between the pump body 2 and the water circuit system 35.

[0059] In this application, the terms "embodiment" and "implementation" mean that a specific feature, element, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, elements, or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A water supply device, characterized in that, include: Pump body (2), including first docking part (21); The water circuit board (3) includes a water circuit system (35) and a second docking part (32), wherein the first docking part (21) docks with the second docking part (32) along a first direction to connect the pump body (2) and the water circuit system (35); The limiting component is detachably connected to the water circuit board (3), and the limiting component contacts the side of the pump body (2) facing the second direction; Wherein, the first direction is opposite to the second direction.

2. The water supply device according to claim 1, characterized in that, The limiting component includes a stop (4), the water channel plate (3) is provided with an installation groove (31), the installation groove (31) includes a first inner wall (311) and a second inner wall (312), and the second docking part (32) is disposed on the first inner wall (311); The water circuit board (3) also includes a third fixing structure, which is disposed on the second inner wall (312). The stop block (4) is disposed in the mounting groove (31) and is detachably connected to the third fixing structure. The side of the stop block (4) facing the first direction contacts the pump body (2).

3. The water supply device according to claim 2, characterized in that, The third fixing structure includes a through hole (33), the stop block (4) is provided with a screw hole (5), and the water supply device (1) also includes a first threaded component, which passes through the through hole (33) and is screwed to the screw hole (5).

4. The water supply device according to claim 2, characterized in that, The third fixing structure includes a magnetic component (34), the block (4) is magnetic, and the magnetic component (34) attracts the block (4) to detachably connect the block (4) to the water channel plate (3).

5. The water supply device according to claim 2, characterized in that, The first inner wall (311) is adjacent to and perpendicular to the second inner wall (312). The second inner wall (312) is parallel to the first direction. In the direction parallel to the first inner wall (311), the third fixing structure is disposed outside the projection of the pump body (2) onto the second inner wall (312).

6. The water supply device according to claim 1, characterized in that, The limiting member includes a limiting band, the limiting band includes a pressing section and a first fixing structure, the water channel plate (3) includes a second fixing structure, the second fixing structure is disposed adjacent to the second docking part (32); The first fixing structure is disposed at one end of the limiting band, the second fixing structure is detachably connected to the first fixing structure, the other end of the limiting band is fixed to the water channel plate (3), the limiting band surrounds the pump body (2), and the pressure section abuts against the side surface of the pump body (2) facing the second direction; or, The number of first fixing structures is two, and the two first fixing structures are respectively set at both ends of the limiting band. The number of second fixing structures is two. The first fixing structures and the second fixing structures are detachably connected in a one-to-one correspondence. The limiting band surrounds the pump body (2), and the pressure section abuts against the side surface of the pump body (2) facing the second direction.

7. The water supply device according to claim 6, characterized in that, The limiting band is elastic, and when the limiting band wraps around the pump body (2), the limiting band is stretched; or, the length of the limiting band can be adjusted.

8. The water supply device according to claim 1, characterized in that, The first docking part (21) is fitted inside the second docking part (32). The outer peripheral surface of the first docking portion (21) is provided with a limiting protrusion (213), which abuts against the inner peripheral surface of the second docking portion (32); and / or, The inner circumferential surface of the second docking part (32) is provided with the limiting protrusion (213), and the limiting protrusion (213) abuts against the outer circumferential surface of the first docking part (21).

9. The water supply device according to claim 8, characterized in that, The water system (35) includes a heat tank and a heat exchanger. The pump body (2) has an inlet (23) and an outlet. The first docking part (21) includes a first sleeve (211) and a second sleeve (212). The inlet (23) is located in the first sleeve (211), and the outlet is located in the second sleeve (212). The second docking part (32) includes a third sleeve (321) and a fourth sleeve (322). The third sleeve (321) is connected to the hot tank, and the fourth sleeve (322) is connected to the heat exchanger. The third sleeve (321) is sleeved on the outer periphery of the first sleeve (211), and the fourth sleeve (322) is sleeved on the outer periphery of the second sleeve (212). The limiting protrusion (213) is provided on at least one of the outer peripheral surface of the first sleeve (211), the outer peripheral surface of the second sleeve (212), the inner peripheral surface of the third sleeve (321), and the inner peripheral surface of the fourth sleeve (322).

10. The water supply device according to claim 1, characterized in that, The pump body (2) also includes a pump body main body (22) and a fourth fixing structure. The water circuit plate (3) includes a fifth fixing structure. One end of the pump body main body (22) is connected to the first docking part (21). The fifth fixing structure is disposed adjacent to the second docking part (32). The fourth fixing structure is disposed adjacent to the first docking part (21). One of the fourth fixing structure and the fifth fixing structure is a hook and the other is a slot. The hook and the slot are detachably connected to limit the pump body (2) in parallel with the second direction.

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