Water pumps and water heaters

Abstract

The present application relates to the field of pump bodies, and specifically discloses a water pump and a water heater, wherein the water pump comprises a pump body, a stop mechanism, a driving mechanism, and a blocking block, wherein the pump body is defined with a water inlet, a water outlet and a cavity, the stop mechanism is arranged in the cavity to separate the cavity into a first sub-chamber connected to the water inlet and a second sub-chamber connected to the water outlet, the stop mechanism is defined with a first through hole and an opening, the first through hole respectively connects the first sub-chamber with the second sub-chamber, and the opening respectively connects the first sub-chamber with the second sub-chamber, the present application provides a method of driving the blocking block to switch back and forth between a blocking position and an open position by a driving mechanism, thereby achieving the effect of reducing the water flow rate, thereby reducing the flow rate flowing through the water heater, and then enabling the water to be fully heated by the water heater before being output to the user, thereby achieving the effect of reducing the fluctuation of the water outlet temperature of the water heater, meeting the user's water demand in winter, and being conducive to improving the user experience.

Description

Technical Field

[0001] The present application relates to the field of pump bodies, and in particular to a water pump and a water heater. Background Art

[0002] In the related art, the water pumps used in gas water heaters only have the function of increasing the water flow, but not reducing the water flow. When the user is in winter or the water inlet temperature is low, the water temperature in the water heater may not reach the preset temperature before being output to the user due to excessive water flow, resulting in excessive cold water and large fluctuations in the outlet water temperature. Summary of the invention

[0003] The present application provides a water pump and a water heater to solve the problem that the water heater in the related art cannot reduce the water flow rate. When the user is in winter or the inlet water temperature is low, the water temperature in the water heater may not reach the preset temperature before being output to the user due to excessive water flow, resulting in excessive cold water and large fluctuations in the outlet water temperature.

[0004] In the first aspect, the present application provides a water pump, which includes: a pump body, a stop mechanism, a driving mechanism, and a blocking block. The pump body is defined by a water inlet, a water outlet and a cavity. The stop mechanism is arranged in the cavity to separate the cavity into a first sub-chamber connected to the water inlet and a second sub-chamber connected to the water outlet. The stop mechanism is defined by a first through hole and an opening. The first through hole connects the first sub-chamber with the second sub-chamber respectively, and the opening connects the first sub-chamber with the second sub-chamber respectively. The blocking block is connected to the driving mechanism; wherein the blocking block has a blocking position and an open position; when the blocking block is in the blocking position, the driving mechanism drives the blocking block to block the opening; when the blocking block is in the open position, the driving mechanism drives the blocking block to disengage from the opening, so that the first sub-chamber is connected to the second sub-chamber through the opening.

[0005] In some embodiments, the blocking block includes a rubber membrane, the pump body defines a mounting port communicating with the first sub-chamber, and the rubber membrane is disposed at the mounting port.

[0006] In some embodiments, the stop mechanism includes a mounting plate and a sleeve, the mounting plate is disposed in the cavity, the first sub-chamber and the second sub-chamber are respectively located on both sides of the mounting plate, a water outlet is defined on the mounting plate, the sleeve is disposed in the first sub-chamber and connected to the mounting plate, the first through hole is disposed on the sleeve, and the opening is disposed at one end of the sleeve away from the mounting plate.

[0007] In some embodiments, the stop mechanism also includes a baffle, which is arranged inside the sleeve to separate the interior of the sleeve into a first channel and a second channel, the first channel is respectively connected to the opening, the water outlet and the first through hole, and the second channel is respectively connected to the opening and the water outlet; wherein, when the blocking block is in the blocking position, the rubber membrane abuts against the side of the baffle facing away from the mounting plate; when the blocking block is in the open position, the rubber membrane is separated from the side of the baffle facing away from the mounting plate, so that the second channel is connected to the first sub-chamber through the opening.

[0008] In some embodiments, the driving mechanism includes a first shell, an iron core, a winding and a movable plate. The first shell is connected to the pump body, the winding is arranged in the first shell, the iron core is arranged inside the winding, the end of the iron core facing the rubber membrane is connected to the movable plate, and the movable plate is connected to the rubber membrane; wherein, when the winding is in the energized position, it can drive the iron core to move toward the opening direction, so that the movable plate drives the rubber membrane to abut against the side of the baffle facing away from the mounting plate.

[0009] In some embodiments, the moving plate is provided with a second through hole, the rubber membrane is provided with a third through hole, and the first sub-chamber is connected with the interior of the first shell through the third through hole and the second through hole.

[0010] In some embodiments, an orthographic projection area of ​​the first channel on the mounting plate is smaller than an orthographic projection area of ​​the second channel on the mounting plate.

[0011] In some embodiments, the blocking block further includes a plug, which is disposed on the side of the rubber membrane facing the opening; when the blocking block is in the blocking position, the plug passes through the opening and abuts against the side of the baffle facing away from the mounting plate.

[0012] In some embodiments, it also includes a second shell, a stator assembly and a rotor assembly. The second shell is connected to the second sub-chamber, the stator assembly is arranged in the second shell, and the rotor assembly is located on the inner side of the stator assembly.

[0013] In some embodiments, a valve body assembly is further included, wherein the valve body assembly is disposed at the water inlet, the valve body assembly includes a seat body and a rubber seat, the seat body and the rubber seat are spaced apart along the water flow direction of the water inlet, a water gap is defined between the seat body and the rubber seat, and a water passage communicating with the water gap is disposed on the seat body.

[0014] In some embodiments, a plurality of adjustment columns are disposed on a side of the seat body facing the rubber seat.

[0015] In a second aspect, the present application also provides a water heater, comprising a water pump as described in any of the above items.

[0016] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0017] The water pump and water heater provided in the embodiment of the present application can drive the blocking block to switch back and forth between the blocking position and the open position through a driving mechanism, so that the water pump of the embodiment of the present application can, on the one hand, achieve the effect of increasing the water flow rate, thereby meeting the user's demand for a larger water flow rate, and on the other hand, can also achieve the effect of reducing the water flow rate, thereby reducing the flow through the water heater, so that the water can be fully heated by the water heater before being output to the user, thereby achieving the effect of reducing the fluctuation of the water outlet temperature of the water heater, meeting the user's water demand in winter, and helping to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 An explosion diagram of a water pump provided in an embodiment of the present application;

[0022] Figure 2 A cross-sectional view of a pump body in an embodiment of the present application;

[0023] Figure 3 A cross-sectional view of a water pump provided in an embodiment of the present application;

[0024] Figure 4 A cross-sectional view of a driving mechanism in an embodiment of the present application;

[0025] Figure 5 A top view of the pump body in the embodiment of the present application;

[0026] Figure 6 This is a bottom view of the pump body in the embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the structure of the seat body in the embodiment of the present application;

[0028] Figure 8 Schematic diagram of the structure of the valve body assembly in the embodiment of the present application.

[0029] Description of reference numerals:

[0030] 10. Water pump;

[0031] 100, pump body; 110, water inlet; 120, water outlet; 130, cavity; 131, first sub-chamber; 132, second sub-chamber;

[0032] 200, stop mechanism; 210, first through hole; 220, opening; 230, mounting plate; 231, water outlet; 240, sleeve; 241, first channel; 242, second channel; 250, baffle;

[0033] 300, driving mechanism; 310, first housing; 320, iron core; 330, winding; 340, moving plate

[0034] 400, blocking block; 410, rubber membrane; 420, plug;

[0035] 500, second housing;

[0036] 600, stator assembly;

[0037] 700, rotor assembly;

[0038] 800, valve body assembly; 810, seat body; 811, water passage; 820, rubber seat; 830, adjusting column. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0041] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion position change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0042] Figure 1 This is a schematic diagram of an explosion of a water pump 10 provided in an embodiment of the present application. Figure 2 This is a cross-sectional view of the pump body 100 in the embodiment of the present application. Figure 3 A cross-sectional view of a water pump 10 provided in an embodiment of the present application, see Figures 1 to 6 The embodiment of the present application provides a water pump 10, which includes: a pump body 100, a stopper mechanism 200, a driving mechanism 300, and a blocking block 400. The pump body 100 is defined with a water inlet 110, a water outlet 120, and a cavity 130. The stopper mechanism 200 is disposed in the cavity 130 to separate the cavity 130 into a first sub-chamber 131 connected to the water inlet 110 and a second sub-chamber 132 connected to the water outlet 120. The stopper mechanism 200 is defined with a first through hole 210 and an opening 220.

[0043] In the examples of this application, see Figure 2 The first through hole 210 connects the first sub-chamber 131 and the second sub-chamber 132 respectively, and the opening 220 connects the first sub-chamber 131 and the second sub-chamber 132 respectively. With such arrangement, water can enter the first sub-chamber 131 through the water inlet 110, and the water in the first sub-chamber 131 can enter the second sub-chamber 132 through the opening 220 and the first through hole 210 respectively, and the water in the second sub-chamber 132 can flow out through the water outlet 120.

[0044] See also Figure 3, the blocking block 400 is connected to the driving mechanism 300. The blocking block 400 has a blocking position and an open position, and the driving mechanism 300 can drive the blocking block 400 to switch back and forth between the blocking position and the open position. When the blocking block 400 is in the blocking position, the driving mechanism 300 drives the blocking block 400 to block the opening 220, so that the water in the first sub-chamber 131 can only flow into the second sub-chamber 132 through the first through hole 210 on the stop mechanism 200. When the blocking block 400 is in the open position, the driving mechanism 300 drives the blocking block 400 to be separated from the opening 220, so that the first sub-chamber 131 is connected to the second sub-chamber 132 through the opening 220 and the first through hole 210, respectively, so that the water in the first sub-chamber 131 can flow into the second sub-chamber 132 through the first through hole 210 and the opening 220 on the stop mechanism 200, respectively.

[0045] It is understandable that the water pump 10 of the embodiment of the present disclosure can be applied to electric water heaters, gas water heaters, solar water heaters or air energy water heaters, which is not limited here. The following description will be made taking a gas water heater as an example.

[0046] Exemplarily, when the blocking block 400 is in the open position, water can flow into the second sub-chamber 132 through the first through hole 210 and the opening 220 on the stop mechanism 200, respectively, so that the water pump 10 of the disclosed embodiment has a higher water flow rate at this time to meet the user's demand for a large water flow rate. When the user is in winter or the water inlet temperature is low, it may occur that the water temperature in the water heater does not reach the preset temperature due to the excessive water flow rate, which is output to the user for use, resulting in excessive cold water and large fluctuations in the outlet water temperature, affecting the user experience. To solve the above problem, the present application can drive the blocking block 400 to switch from the open position to the blocked position through the driving mechanism 300, and the blocking block 400 switches from the position separated from the opening 220 to the position where the blocking block 400 blocks the opening 220, thereby allowing the water in the first sub-chamber 131 to flow into the second sub-chamber 132 only through the first through hole 210 on the stop mechanism 200, thereby achieving the effect of reducing the water flow rate of the water pump 10. When it is necessary to increase the water flow rate of the water pump 10, the present application can drive the blocking block 400 to switch from the blocking position to the open position through the driving mechanism 300, and the blocking block 400 switches from the position of blocking the opening 220 to the position where the blocking block 400 is separated from the opening 220, thereby allowing the water in the first sub-chamber 131 to flow into the second sub-chamber 132 through the first through hole 210 and the opening 220 on the stop mechanism 200, respectively, thereby achieving the effect of increasing the water flow rate of the water pump 10.

[0047] According to the water pump 10 of the embodiment of the present disclosure, the blocking block 400 can be driven to switch back and forth between the blocking position and the open position through the driving mechanism 300, so that the water pump 10 of the embodiment of the present disclosure can achieve the effect of increasing the water flow rate on the one hand, thereby meeting the user's demand for a larger water flow rate, and on the other hand, it can also achieve the effect of reducing the water flow rate, thereby reducing the flow rate flowing through the water heater, so that the water can be fully heated by the water heater before being output to the user, thereby achieving the effect of reducing the fluctuation of the water outlet temperature of the water heater, meeting the user's water demand in winter, and helping to improve the user experience.

[0048] Figure 4 is a cross-sectional view of the driving mechanism 300 in the embodiment of the present application. In some embodiments, see Figure 3 and Figure 4 The blocking block 400 includes a rubber membrane 410 , and the pump body 100 is defined with a mounting port communicating with the first sub-chamber 131 , and the rubber membrane 410 is disposed at the mounting port.

[0049] Exemplarily, the first sub-chamber 131 and the second sub-chamber 132 are arranged at intervals along a preset direction, and the installation port and the second sub-chamber 132 are arranged on both sides of the first sub-chamber 131 in the preset direction. With such an arrangement, the driving mechanism 300 can drive the rubber membrane 410 to move along the preset direction toward the opening 220 of the stop mechanism 200 so that the rubber membrane 410 can block the opening 220, or can drive the rubber membrane 410 to move along the preset direction away from the opening 220 of the stop mechanism 200 so that the rubber membrane 410 and the opening 220 are separated. In this way, the water pump 10 of the disclosed embodiment can, on the one hand, achieve the effect of increasing the water flow rate, thereby meeting the user's demand for a larger water flow rate, and on the other hand, can also achieve the effect of reducing the water flow rate, thereby reducing the flow rate flowing through the water heater, so that the water can be fully heated by the water heater before being output to the user, thereby reducing the water outlet temperature fluctuation of the water heater, meeting the user's water demand in winter, and helping to improve the user experience. Secondly, the present disclosure can install the driving mechanism 300 and the stop mechanism 200 in the pump body 100, so that the water flow rate can be increased or decreased, and the structure of the water pump 10 of the present disclosure can be made more compact.

[0050] Figure 5 This is a top view of the pump body 100 in the embodiment of the present application. Figure 6 This is a bottom view of the pump body 100 in the embodiment of the present application. In some embodiments, see Figure 2 , Figure 5 as well as Figure 6The stop mechanism 200 includes a mounting plate 230 and a sleeve 240. The mounting plate 230 is arranged in the cavity 130. The first sub-chamber 131 and the second sub-chamber 132 are respectively located on both sides of the mounting plate 230. The mounting plate 230 is defined with a water outlet 231. The sleeve 240 is arranged in the first sub-chamber 131 and connected to the mounting plate 230. The first through hole 210 is arranged on the sleeve 240. The opening 220 is arranged at one end of the sleeve 240 away from the mounting plate 230. The sleeve 240 extends along a preset direction. One end of the sleeve 240 is connected to the second sub-chamber 132 through the water outlet 231, and the other end opening 220 of the sleeve 240 is connected to the first sub-chamber 131.

[0051] According to the water pump 10 of the embodiment of the present application, the setting of the sleeve 240 enables the flow direction of water in the first sub-chamber 131 of the water pump 10 of the present application to be perpendicular to the flow direction of water in the sleeve 240, and the flow direction of water in the second sub-chamber 132 to be perpendicular to the flow direction of water in the sleeve 240, thereby increasing the water flow distance, which is conducive to increasing the water flow volume of the water pump 10 of the present disclosure. Secondly, the present application realizes that the water flow channel from the first sub-chamber 131 entering the sleeve 240 through the opening 220 and the water flow channel from the first sub-chamber 131 entering the sleeve 240 through the first through hole 210 do not interfere with each other through the setting of the sleeve 240, thereby reducing the water flow noise of the pump body 100.

[0052] In some embodiments, see Figure 2 , Figure 3 as well as Figure 5 The stop mechanism 200 further includes a baffle 250, which is disposed inside the sleeve 240 to separate the inside of the sleeve 240 into a first channel 241 and a second channel 242. The first channel 241 is respectively connected to the opening 220, the water outlet 231 and the first through hole 210, so that the water in the first sub-chamber 131 can enter the first channel 241 through the opening 220 and the first through hole 210, respectively, and the water in the first channel 241 can enter the second sub-chamber 132 through the water outlet 231. The second channel 242 is respectively connected to the opening 220 and the water outlet 231, so that the water in the first sub-chamber 131 can enter the second channel 242 through the opening 220, and the water in the second channel 242 can enter the second sub-chamber 132 through the water outlet 231. When the blocking block 400 is in the blocking position, the rubber membrane 410 abuts against the side of the baffle 250 facing away from the mounting plate 230. When the blocking block 400 is in the open position, the rubber membrane 410 is separated from the side of the baffle 250 facing away from the mounting plate 230 , so that the second channel 242 is connected to the first sub-chamber 131 through the opening 220 .

[0053] According to the water pump 10 of the embodiment of the present application, the water flow of the first channel 241 and the second channel 242 does not interfere with each other through the setting of the baffle 250, thereby reducing the water flow noise of the pump body 100. It can be understood that when the blocking block 400 is in the blocking position, the rubber membrane 410 abuts against the side of the baffle 250 facing away from the mounting plate 230. At this time, the water in the first sub-chamber 131 cannot enter the second channel 242 through the opening 220 of the sleeve 240. The water in the first sub-chamber 131 can only enter the first channel 241 through the first through hole 210. The water in the first channel 241 enters the second sub-chamber 132 through the water port 231. Such a setting can achieve the effect of reducing the water flow. Secondly, when the blocking block 400 is in the open position, the rubber membrane 410 is separated from the side of the baffle 250 facing away from the mounting plate 230, so that the second channel 242 is connected to the first sub-chamber 131 through the opening 220. At this time, the water in the first sub-chamber 131 can enter the first channel 241 and the second channel 242 through the opening 220 of the sleeve 240, and the water in the first sub-chamber 131 can also enter the first channel 241 through the first through hole 210. The water in the first channel 241 enters the second sub-chamber 132 through the water outlet 231, and the water in the second channel 242 enters the second sub-chamber 132 through the water outlet 231. Such a setting can achieve the effect of increasing the water flow rate, thereby meeting the user's demand for a larger water flow rate.

[0054] In some embodiments, see Figure 3 and Figure 4 The driving mechanism 300 includes a first housing 310, an iron core 320, a winding 330 and a moving plate 340. The first housing 310 is connected to the pump body 100. The winding 330 is disposed in the first housing 310. The iron core 320 is disposed inside the winding 330. One end of the iron core 320 facing the rubber membrane 410 is connected to the moving plate 340. The moving plate 340 is connected to the rubber membrane 410. When the winding 330 is in the power-on position, it can drive the iron core 320 to move toward the opening 220, so that the moving plate 340 drives the rubber membrane 410 to abut against the side of the baffle 250 facing away from the mounting plate 230.

[0055] According to the water pump 10 of the embodiment of the present disclosure, by energizing the winding 330, the iron core 320 can be driven to move in a preset direction toward the opening 220, thereby driving the rubber membrane 410 to block the opening 220 and abut against the side of the baffle 250 facing away from the mounting plate 230, so that the water in the first sub-chamber 131 cannot enter the second channel 242 through the opening 220 of the sleeve 240, thereby achieving the effect of reducing the water flow rate, thereby reducing the flow rate flowing through the water heater, and allowing the water to be fully heated by the water heater before being output to the user, thereby reducing the fluctuation of the water outlet temperature of the water heater and meeting the user's water demand in winter, which is conducive to improving the user experience.

[0056] In some embodiments, the movable plate 340 is provided with a second through hole, the rubber membrane 410 is provided with a third through hole, the first sub-chamber 131 is connected with the interior of the first shell 310 through the third through hole and the second through hole, and when the iron core 320 moves, the water in the first shell 310 and the water in the second sub-chamber 132 flow to each other through the second through hole and the third through hole, so that the internal pressure of the first shell 310 and the internal pressure of the first sub-chamber 131 are always kept balanced, thereby reducing the resistance encountered by the movable plate 340 during the movement.

[0057] In some embodiments, see Figure 6 The orthographic projection area of ​​the first channel 241 on the mounting plate 230 is smaller than the orthographic projection area of ​​the second channel 242 on the mounting plate 230. Such an arrangement can make the volume of the first channel 241 smaller than the volume of the second channel 242, thereby increasing the water flow rate of the second channel 242.

[0058] In some embodiments, see Figure 3 and Figure 4 The blocking block 400 further includes a plug 420, which is disposed on the side of the rubber membrane 410 facing the opening 220. When the blocking block 400 is in the blocking position, the rubber membrane 410 blocks the opening 220 of the sleeve 240, and the plug 420 passes through the opening 220 and abuts against the side of the baffle 250 facing away from the mounting plate 230, thereby minimizing the amount of water flowing from the first channel 241 to the second channel 242 from the opening 220.

[0059] In some embodiments, see Figure 3 The water pump 10 of the disclosed embodiment further includes a second housing 500, a stator assembly 600 and a rotor assembly 700. The second housing 500 is connected to the second sub-chamber 132. The stator assembly 600 is disposed in the second housing 500, and the rotor assembly 700 is located on the inner side of the stator assembly 600. Under normal working conditions, the stator assembly 600 is not powered, the rotor assembly 700 does not move, and the water flows through the second sub-chamber 132 and flows out through the water outlet 120. When the user uses too little water flow or too low water pressure, the stator assembly 600 is powered, the rotor assembly 700 rotates, and the water in the second sub-chamber 132 is pushed out of the water pump 10 by the centrifugal force of the rotor assembly 700, thereby increasing the water flow of the water pump 10.

[0060] See also Figure 7 and Figure 8In some embodiments, the present application further includes a valve body assembly 800, which is disposed at the water inlet 110. The valve body assembly 800 includes a seat body 810 and a rubber seat 820. The seat body 810 and the rubber seat 820 are spaced apart along the water flow direction of the water inlet 110. The rubber seat 820 is disposed at the upstream end of the seat body 810. Under the pressure of the water flow, the rubber seat 820 will deform toward the seat body 810. A water gap is defined between the seat body 810 and the rubber seat 820. When the rubber seat 820 is deformed toward the seat body 810, the water gap will become smaller. A water passage 811 connected to the water gap is disposed on the seat body 810. In this way, under the pressure of the water flow, the rubber seat 820 will deform toward the seat body 810 to reduce the water flow gap, reduce the amount of water flowing through the water flow gap, and thereby reduce the water flow entering the cavity 130. When the deformation of the rubber seat 820 approaches the limit, that is, when the rubber seat 820 generates a large tension, the rubber seat 820 will not continue to deform as the pressure of the water flow increases. At this time, the water flow gap will not continue to decrease, so that the water flow passing through the water flow gap remains stable, thereby preventing excessive water flow from impacting the interior of the water pump, thereby causing aging and leakage of the sealing ring inside the water pump, effectively improving the life of the water pump 10, and preventing the water pump 10 from being subjected to excessive water flow pressure, thereby reducing the life of the water pump.

[0061] In some embodiments, a plurality of adjustment columns 830 are provided on one side of the seat body 810 facing the rubber seat 820. The adjustment columns 830 play a role in blocking the water flow gap, thereby reducing the flow rate of water entering the water flow gap, and preventing excessive water flow from impacting the inside of the water pump, thereby causing the sealing ring inside the water pump to age and leak. At the same time, the adjustment columns 830 can support the rubber seat 820, preventing the rubber seat 820 from directly deforming to block the water flow gap, and ensuring that the water flow gap always exists.

[0062] In this embodiment, two first adjustment columns, two second adjustment columns, two third adjustment columns and two fourth adjustment columns are included. The two first adjustment columns are symmetrically arranged, the two second adjustment columns are symmetrically arranged, the two third adjustment columns are symmetrically arranged, and the two fourth adjustment columns are symmetrically arranged. The height of the first adjustment column is greater than that of the second adjustment column, the height of the second adjustment column is greater than that of the third adjustment column, and the height of the third adjustment column is greater than that of the fourth adjustment column. The greater the deformation amount of the rubber seat 820, the more the number of abutting adjustment columns is, and the lower the height of the abutting adjustment columns is. Specifically, when the rubber seat 820 is deformed to abut against the first adjustment column, the gap between the rubber seat 820 and the seat body 810 is larger; when the water pressure increases, the rubber seat 820 continues to deform to abut against the second adjustment column. At this time, the rubber seat 820 abuts against the first adjustment column and the second adjustment column, and the gap between the rubber seat 820 and the seat body 810 decreases; when the water pressure continues to increase, the rubber seat 820 continues to deform to abut against the third adjustment column. At this time, the rubber seat 820 abuts against the first adjustment column, the second adjustment column, and the third adjustment column, and the gap between the rubber seat 820 and the seat body 810 continues to decrease; when the water pressure increases again, the rubber seat 820 continues to deform to abut against the fourth adjustment column. At this time, the rubber seat 820 abuts against the first adjustment column, the second adjustment column, the third adjustment column, and the fourth adjustment column, and the gap between the rubber seat 820 and the seat body 810 decreases again;

[0063] The disclosed embodiment also provides a water heater, which includes a water pump 10 as in any of the above embodiments. Thus, the water heater includes the technical effects of any of the above embodiments. Generally speaking, the blocking block 400 can be driven to switch back and forth between the blocking position and the open position by the driving mechanism 300, so that the water pump 10 of the disclosed embodiment can achieve the effect of increasing the water flow rate on the one hand, thereby meeting the user's demand for a larger water flow rate, and on the other hand, can also achieve the effect of reducing the water flow rate, thereby reducing the flow rate flowing through the water heater, so that the water can be fully heated by the water heater before being output to the user, achieving the effect of reducing the fluctuation of the water outlet temperature of the water heater, meeting the user's water demand in winter, and helping to improve the user experience.

[0064] It is understandable that the water pump 10 of the embodiment of the present disclosure can be applied to electric water heaters, gas water heaters, solar water heaters or air energy water heaters, which is not limited here. The following description will be made taking a gas water heater as an example.

[0065] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0066] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0067] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A water pump, characterized in that: include: A pump body, a stop mechanism, a driving mechanism, and a blocking block, wherein the pump body is defined with a water inlet, a water outlet, and a cavity, the stop mechanism is arranged in the cavity to separate the cavity into a first sub-chamber connected to the water inlet and a second sub-chamber connected to the water outlet, the stop mechanism is defined with a first through hole and an opening, the first through hole is respectively connected to the first sub-chamber and the second sub-chamber, the opening is respectively connected to the first sub-chamber and the second sub-chamber, and the blocking block is connected to the driving mechanism; wherein the blocking block has a blocking position and an open position; when the blocking block is in the blocking position, the driving mechanism drives the blocking block to block the opening; when the blocking block is in the open position, the driving mechanism drives the blocking block to be separated from the opening, so that the first sub-chamber is connected to the second sub-chamber through the opening; The blocking block includes a rubber membrane, the pump body defines a mounting opening communicating with the first sub-chamber, and the rubber membrane is arranged at the mounting opening; The stop mechanism comprises a mounting plate and a sleeve, wherein the mounting plate is arranged in the cavity, the first sub-chamber and the second sub-chamber are respectively located on both sides of the mounting plate, the mounting plate is defined with a water outlet, the sleeve is arranged in the first sub-chamber and connected to the mounting plate, the first through hole is arranged on the sleeve, and the opening is arranged at one end of the sleeve away from the mounting plate; The stop mechanism further comprises a baffle, which is arranged inside the sleeve to separate the inside of the sleeve into a first channel and a second channel, the first channel is respectively connected to the opening, the water outlet and the first through hole, and the second channel is respectively connected to the opening and the water outlet; wherein, when the blocking block is in the blocking position, the rubber membrane abuts against a side of the baffle facing away from the mounting plate; when the blocking block is in the open position, the rubber membrane is separated from a side of the baffle facing away from the mounting plate, so that the second channel is connected to the first sub-chamber through the opening; The driving mechanism comprises a first shell, an iron core, a winding and a moving plate, wherein the first shell is connected to the pump body, the winding is arranged in the first shell, the iron core is arranged inside the winding, one end of the iron core facing the rubber membrane is connected to the moving plate, and the moving plate is connected to the rubber membrane; wherein the winding is in an energized position and can drive the iron core to move toward the opening, so that the moving plate drives the rubber membrane to abut against the side of the baffle facing away from the mounting plate; An orthographic projection area of ​​the first channel on the mounting plate is smaller than an orthographic projection area of ​​the second channel on the mounting plate.

2. The water pump according to claim 1, characterized in that: The moving plate is provided with a second through hole, the rubber membrane is provided with a third through hole, and the first sub-chamber is communicated with the interior of the first housing through the third through hole and the second through hole.

3. The water pump according to claim 1, characterized in that: The blocking block also includes a plug, which is arranged on a side of the rubber membrane facing the opening; when the blocking block is in the blocking position, the plug passes through the opening and abuts against a side of the baffle facing away from the mounting plate.

4. The water pump according to claim 1, characterized in that: It also includes a second shell, a stator assembly and a rotor assembly. The second shell is communicated with the second sub-chamber. The stator assembly is arranged in the second shell, and the rotor assembly is located on the inner side of the stator assembly.

5. The water pump according to any one of claims 1 to 4, characterized in that: It also includes a valve body assembly, which is arranged at the water inlet. The valve body assembly includes a seat body and a rubber seat. The seat body and the rubber seat are arranged at intervals along the water flow direction of the water inlet. A water gap is defined between the seat body and the rubber seat. A water passage connected to the water gap is provided on the seat body.

6. The water pump according to claim 5, characterized in that: A plurality of adjustment columns are arranged on one side of the seat body facing the rubber seat.

7. A water heater, characterized in that: Comprising the water pump according to any one of claims 1-6.

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