Water pump with exhaust valve and pedestal pan

Abstract

The utility model discloses a water pump with an exhaust valve and a pedestal pan. According to the water pump, a bottom cover is connected with the lower end of a shell to form an inner cavity, a top cover is connected with the upper end of the shell, a motor and an impeller are arranged in the inner cavity, the impeller is in transmission connection with the motor, and an exhaust valve is connected to the top cover and communicates with the inner cavity. The motor works to drive the impeller to rotate to form suction force, so that water flow enters the inner cavity along the bottom cover to form positive-pressure water flow, and air in the inner cavity flows out along the exhaust valve. The water pump is started, the motor drives the impeller to rotate to form suction force, water flow enters the inner cavity along the bottom cover, at the moment, the water flow extrudes air in the inner cavity to enable the air to generate positive pressure, and the air is exhausted through the exhaust valve. The problems that the output water amount is inaccurate and abnormal noise occurs due to the fact that air is mixed into water of the water pump or air is reserved in an inner cavity when the water pump is started are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a toilet bowl technical field especially, it relates to a water pump with exhaust valve and toilet bowl. BACKGROUND

[0002] As a common fluid conveying equipment, centrifugal water pump has a wide range of applications in many fields. Its working principle is based on centrifugal force. Through the high-speed rotation of the impeller, the liquid is driven by the impeller blades to obtain energy, thereby realizing the conveying and pressurizing of the liquid. However, in the actual working process, the centrifugal water pump faces the performance problem caused by the mixing of gas. When air is mixed in water, or when air is left in the internal cavity of the water pump during startup, it will have a significant adverse effect on the normal operation of the water pump. On the one hand, air is compressible, and its density is much smaller than that of water. When air exists in the water pump, it will occupy a certain space, resulting in a decrease in the effective volume of water actually acting on the impeller during rotation, thereby causing the output water volume of the water pump to deviate from the expected flow requirement. On the other hand, the presence of air will disrupt the stable flow state of the fluid in the water pump, causing turbulence and pulsation of the fluid. This unstable fluid movement will produce abnormal noise, which will not only affect the comfort of the equipment operating environment, but also may indicate that there is a potential risk of operation in the water pump, such as aggravating the wear of parts, reducing the service life of the equipment, etc.

[0003] Therefore, it is necessary to develop a technology that can effectively solve the problem of inaccurate output water volume and abnormal noise caused by the mixing of air in water or the retention of air in the internal cavity of the water pump during startup. INVENTION CONTENTS

[0004] The utility model aims at overcoming the defects of prior art, and provides a water pump with exhaust valve and toilet bowl.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model provides a water pump with exhaust valve, which comprises a shell, a bottom cover, a motor, an impeller, a top cover and an exhaust valve. The bottom cover is connected with the lower end of the shell to form an internal cavity. The top cover is connected with the upper end of the shell. The motor and the impeller are arranged in the internal cavity, and the impeller is drivingly connected with the motor. The exhaust valve is connected with the top cover and communicates with the internal cavity. The motor drives the impeller to rotate to form a suction force, so that the water flow enters the internal cavity along the bottom cover to form a positive pressure water flow, and the air in the internal cavity flows out along the exhaust valve.

[0007] In a specific embodiment, the exhaust valve is composed of a bracket, a gasket and a mounting cap, the mounting cap is connected to the top cover, the mounting cap is provided with a stepped cavity, the stepped cavity is communicated with the inner cavity, the bracket is arranged in the stepped cavity, the gasket is sleeved on the upper end of the bracket, and the air enters the stepped cavity along the inner cavity and flows out.

[0008] In a specific embodiment, the bracket is a water floating structure, when the water flow enters the stepped cavity and discharges the air, the bracket floats up, so that the gasket abuts against the cavity wall of the stepped cavity to form a sealed state.

[0009] In a specific embodiment, the housing is provided with a flow guide channel at the top of the inner cavity, the top cover is provided with a flow guide hole corresponding to the flow guide channel, and the inner cavity, the flow guide channel, the flow guide hole and the stepped cavity are sequentially communicated.

[0010] In a specific embodiment, a sealing element is further arranged between the mounting cap and the top cover.

[0011] In a specific embodiment, the motor is composed of a rotating shaft, a rotor and a stator, the top cover and the housing are connected to form an outer cavity, the rotating shaft is arranged in the inner cavity, the rotor is gap-fitted with the rotating shaft, the impeller is drivingly connected to the rotating shaft, and the stator is arranged in the outer cavity and corresponds to the rotor.

[0012] In a specific embodiment, the outer cavity is further provided with a control panel, and the control panel is electrically connected to the motor.

[0013] In a specific embodiment, the bottom cover is further provided with a water inlet and a water outlet, the water inlet is located below the impeller, and the water outlet is located at the side of the impeller.

[0014] In a specific embodiment, the outer periphery of the bottom cover and the top cover is sleeved with a damping pad.

[0015] Compared with the prior art, the water pump with the exhaust valve has the beneficial effects that: when the water pump is not working, the inner cavity is communicated with the atmosphere, when the water pump is started, the motor drives the impeller to rotate to form a suction force, the water flow enters the inner cavity along the bottom cover, at this time, the water flow extrudes the air in the inner cavity to generate positive pressure, and the air is discharged through the exhaust valve, which effectively avoids the hindering of the air to the water flow entering in the starting stage, so that the water pump can establish a stable initial flow in a short time, reduces the flow fluctuation range, and effectively solves the problems of inaccurate output water quantity and abnormal noise caused by the air mixed in the water or the air remaining in the inner cavity when the water pump is started.

[0016] In a second aspect, the utility model provides a toilet, including the water pump with the exhaust valve as described above.

[0017] The utility model discloses a toilet, and compared with prior art has the beneficial effects that: through setting up the water pump with the exhaust valve in the toilet, then when the water pump does not work, the inner cavity communicates with the atmosphere, when the water pump starts, the motor drives the impeller to rotate and forms the suction, and the water flow enters the inner cavity along the bottom cover, the water flow extrudes the air in the inner cavity at this moment, makes it produce the positive pressure, and the air just discharges through the exhaust valve, effectively avoids the air of starting stage to the hindrance of water flow to enter, makes the water pump can establish the stable initial flow in the short time, reduces the flow fluctuation range, that is, effectively solves the problem of inaccurate output water quantity and abnormal noise caused by the water pump because of the air mixed in the water or the air remaining in the internal cavity when starting.

[0018] The utility model discloses a toilet, and compared with prior art has the beneficial effects that: through setting up the water pump with the exhaust valve in the toilet, then when the water pump does not work, the inner cavity communicates with the atmosphere, when the water pump starts, the motor drives the impeller to rotate and forms the suction, and the water flow enters the inner cavity along the bottom cover, the water flow extrudes the air in the inner cavity at this moment, makes it produce the positive pressure, and the air just discharges through the exhaust valve, effectively avoids the air of starting stage to the hindrance of water flow to enter, makes the water pump can establish the stable initial flow in the short time, reduces the flow fluctuation range, that is, effectively solves the problem of inaccurate output water quantity and abnormal noise caused by the water pump because of the air mixed in the water or the air remaining in the internal cavity when starting. DRAWINGS

[0019] In order to make the purpose, technical scheme and advantage of the utility model clearer, the utility model will be further described in detail below by combining with the drawings and specific embodiment.

[0020] Figure 1 The utility model discloses a toilet, and compared with prior art has the beneficial effects that: through setting up the water pump with the exhaust valve in the toilet, then when the water pump does not work, the inner cavity communicates with the atmosphere, when the water pump starts, the motor drives the impeller to rotate and forms the suction, and the water flow enters the inner cavity along the bottom cover, the water flow extrudes the air in the inner cavity at this moment, makes it produce the positive pressure, and the air just discharges through the exhaust valve, effectively avoids the air of starting stage to the hindrance of water flow to enter, makes the water pump can establish the stable initial flow in the short time, reduces the flow fluctuation range, that is, effectively solves the problem of inaccurate output water quantity and abnormal noise caused by the water pump because of the air mixed in the water or the air remaining in the internal cavity when starting.

[0021] Figure 2 The utility model discloses a toilet, and compared with prior art has the beneficial effects that: through setting up the water pump with the exhaust valve in the toilet, then when the water pump does not work, the inner cavity communicates with the atmosphere, when the water pump starts, the motor drives the impeller to rotate and forms the suction, and the water flow enters the inner cavity along the bottom cover, the water flow extrudes the air in the inner cavity at this moment, makes it produce the positive pressure, and the air just discharges through the exhaust valve, effectively avoids the air of starting stage to the hindrance of water flow to enter, makes the water pump can establish the stable initial flow in the short time, reduces the flow fluctuation range, that is, effectively solves the problem of inaccurate output water quantity and abnormal noise caused by the water pump because of the air mixed in the water or the air remaining in the internal cavity when starting.

[0022] Figure 3 The utility model discloses a toilet, and compared with prior art has the beneficial effects that: through setting up the water pump with the exhaust valve in the toilet, then when the water pump does not work, the inner cavity communicates with the atmosphere, when the water pump starts, the motor drives the impeller to rotate and forms the suction, and the water flow enters the inner cavity along the bottom cover, the water flow extrudes the air in the inner cavity at this moment, makes it produce the positive pressure, and the air just discharges through the exhaust valve, effectively avoids the air of starting stage to the hindrance of water flow to enter, makes the water pump can establish the stable initial flow in the short time, reduces the flow fluctuation range, that is, effectively solves the problem of inaccurate output water quantity and abnormal noise caused by the water pump because of the air mixed in the water or the air remaining in the internal cavity when starting.

[0023] Figure 4 The utility model discloses a toilet, and compared with prior art has the beneficial effects that: through setting up the water pump with the exhaust valve in the toilet, then when the water pump does not work, the inner cavity communicates with the atmosphere, when the water pump starts, the motor drives the impeller to rotate and forms the suction, and the water flow enters the inner cavity along the bottom cover, the water flow extrudes the air in the inner cavity at this moment, makes it produce the positive pressure, and the air just discharges through the exhaust valve, effectively avoids the air of starting stage to the hindrance of water flow to enter, makes the water pump can establish the stable initial flow in the short time, reduces the flow fluctuation range, that is, effectively solves the problem of inaccurate output water quantity and abnormal noise caused by the water pump because of the air mixed in the water or the air remaining in the internal cavity when starting. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model clearer, the utility model will be further described in detail below by combining with the drawings and specific embodiment.

[0025] The utility model discloses a toilet, and compared with prior art has the beneficial effects that: through setting up the water pump with the exhaust valve in the toilet, then when the water pump does not work, the inner cavity communicates with the atmosphere, when the water pump starts, the motor drives the impeller to rotate and forms the suction, and the water flow enters the inner cavity along the bottom cover, the water flow extrudes the air in the inner cavity at this moment, makes it produce the positive pressure, and the air just discharges through the exhaust valve, effectively avoids the air of starting stage to the hindrance of water flow to enter, makes the water pump can establish the stable initial flow in the short time, reduces the flow fluctuation range, that is, effectively solves the problem of inaccurate output water quantity and abnormal noise caused by the water pump because of the air mixed in the water or the air remaining in the internal cavity when starting.

[0026] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be connected, or detachable, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upper of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined lower of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0030] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0031] Referring to Figures 1 to 4 The utility model discloses a water pump with exhaust valve, including: casing 10, bottom cover 20, motor 30, impeller 40, top cap 50 and exhaust valve 60, bottom cover 20 with the lower end of casing 10 is connected to form the inner cavity, top cap 50 with the upper end of casing 10 is connected, motor 30 and impeller 40 are located in the inner cavity, and impeller 40 is transmission connection in motor 30, exhaust valve 60 is connected in top cap 50, and is communicated in the inner cavity, motor 30 works and drives impeller 40 rotation forms suction force to make water flow along bottom cover 20 enters the inner cavity and forms positive pressure water flow, to make the air of inner cavity along exhaust valve 60 flows out.

[0032] Specifically, when the water pump is not working, the inner cavity is communicated with the atmosphere through the exhaust valve 60. Because the water flow pressure is not formed in the water pump, the inner cavity is full of air, which includes the air entering the inner cavity of the water pump through the pipeline and the air entering from the outside through the exhaust valve 60. The air in the inner cavity is in a relatively static state, and the pressure is equal to the atmospheric pressure. When the motor 30 is powered on and starts to work, the motor 30 drives the impeller 40 to rotate at high speed. The impeller 40 generates centrifugal force on the surrounding water during rotation, so that the water flow is sucked into the inner cavity along the bottom cover 20. With the continuous rotation of the impeller 40, the kinetic energy of the water is continuously increased to form a positive pressure water flow. The generation of the positive pressure water flow makes the pressure in the inner cavity gradually increase, which is higher than the atmospheric pressure. At this time, the air in the inner cavity is discharged to the outside along the exhaust valve 60 under the action of the pressure difference. With the continuous entry of the water flow and the continuous increase of the pressure, the air in the inner cavity is gradually discharged until the inner cavity is basically filled with water, and the water pump enters the normal working state and starts to stably transport the water flow.

[0033] That is to say, when the water pump is not working, the inner cavity is communicated with the atmosphere, when the water pump starts, the motor 30 drives the impeller 40 to rotate to form suction, the water flow enters the inner cavity along the bottom cover 20, at this time, the water flow extrudes the air in the inner cavity to make it produce positive pressure, and the air is discharged through the exhaust valve 60, which effectively avoids the hindrance of air to the water flow entering during the starting stage, so that the water pump can establish a stable initial flow in a short time, reduces the flow fluctuation range, that is, effectively solves the problem that the output water quantity is inaccurate and abnormal noise occurs due to the air mixed in the water or the air remaining in the inner cavity during the starting of the water pump. In addition, after the air in the inner cavity is discharged, the energy transmission process between the impeller 40 and the water is more stable, the flow path of the water flow is not disturbed by the air, and the actual head and flow of the water pump can be closer to the design value, thereby ensuring the accuracy of the output water quantity. In addition, the discharge of the air avoids the severe pressure fluctuation caused by the compression and release of the air. In the traditional water pump, these pressure fluctuations will cause strong vibration of the water pump body and produce abnormal noise. The water pump discharges the air in time, so that the pressure change in the inner cavity is more stable, the impact of the pressure fluctuation on the water pump parts is reduced, and the vibration and noise level during the operation of the water pump is reduced.

[0034] Referring to Figures 2 to 4 As shown in the drawings, in an embodiment, the exhaust valve 60 is composed of a bracket 61, a gasket 62 and a mounting cap 63, the mounting cap 63 is connected to the top cover 50, the mounting cap 63 is provided with a stepped cavity, the stepped cavity is communicated with the inner cavity, the bracket 61 is arranged in the stepped cavity, the gasket 62 is sleeved on the upper end of the bracket 61, and the air enters the stepped cavity along the inner cavity and flows out.

[0035] Specifically, when the water pump starts, the motor 30 drives the impeller 40 to rotate to form suction, the water flow enters the inner cavity along the bottom cover 20, at this time, the water flow extrudes the air in the inner cavity to make it produce positive pressure, and the air is discharged along the stepped cavity. After the water pump works normally and the pressure in the inner cavity is stable, the gasket 62 tightly abuts between the bracket 61 and the stepped cavity to form a reliable seal. This sealing structure can effectively prevent the water flow in the inner cavity from leaking to the outside through the exhaust valve 60, ensure the conveying efficiency of the water pump and reduce the waste of water resources. At the same time, the good sealing performance can also prevent dust, impurities and the like in the outside from entering the inner cavity of the water pump, and protect the internal parts of the water pump from being polluted and damaged.

[0036] Referring to Figures 2 to 4 As shown in the drawings, in an embodiment, the bracket 61 is a water floating structure, when the water flow enters the stepped cavity and discharges the air, the bracket 61 floats up, so that the gasket 62 abuts against the cavity wall of the stepped cavity to form a sealed state.

[0037] Specifically, referring to Figure 3The arrows shown represent the direction of water flow and air movement. When the water flows into the stepped cavity and discharges the air, the bracket 61 is water-floatable. Under the buoyancy of water, the bracket 61 floats upwards until the gasket 62 abuts against the cavity wall of the stepped cavity to form a sealed state, so that the water pump can accurately output water flow in subsequent work and avoid abnormal noise.

[0038] More specifically, the bracket 61 is made of lightweight materials with a density less than water, such as lightweight plastics (e.g., polypropylene, polyethylene, etc.) or foamed metals (e.g., foamed aluminum alloy). Taking polypropylene as an example, it has the advantages of low density (usually 0.9-0.91 g / cm 3 ), good chemical stability, corrosion resistance, etc., and is suitable for making water-floatable brackets 61. If foamed metal is used, a large number of tiny pores can be formed inside the metal by controlling the foaming process to reduce the overall density. For example, the density of foamed aluminum alloy can be controlled in the range of 0.4-0.8 g / cm 3 . At the same time, it can also ensure a certain strength. When the water pump starts, the water flows into the inner cavity and forms a positive pressure, and the air enters the stepped cavity of the mounting cap 63 along with the water flow. At this time, the bracket 61 is in the lower position of the stepped cavity under the action of its own gravity, and there is a certain gap between the gasket 62 and the cavity wall of the stepped cavity, so that the air can smoothly pass through the gap and be discharged to the outside. As the air is continuously discharged, the water flow gradually fills the stepped cavity. When the water flow enters the stepped cavity and basically discharges the air, the bracket 61 begins to float upwards under the buoyancy of water due to its water-floatable structure. The bracket 61 drives the gasket 62 to move upwards together until the gasket 62 tightly abuts against the cavity wall of the stepped cavity to form a sealed state. At this time, the stepped cavity is effectively sealed to prevent water flow from leaking from the exhaust valve 60 in the subsequent working process, and to avoid the re-entry of external air into the inner cavity.

[0039] That is, after the bracket 61 floats upwards to make the gasket 62 abut against the cavity wall of the stepped cavity to form a seal, the inner cavity forms a relatively closed space. In the subsequent working process of the water pump, the water flow in the inner cavity can stably form pressure and flow according to the design requirements, avoiding pressure fluctuations and flow instability caused by air mixing or water leakage. In addition, in the traditional water pump, the absence of an exhaust valve causes a certain amount of air in the inner cavity, resulting in frequent fluctuations in the inner cavity pressure, which in turn causes vibration and abnormal noise of the water pump body. In this technology, after the bracket 61 floats upwards to form a seal, the inner cavity pressure is stable, avoiding noise caused by pressure fluctuations. At the same time, the sealed state reduces the turbulence and impact of the water flow at the exhaust valve 60, further reducing the generation of noise.

[0040] In other embodiments, the bracket 61 can also adopt a reverse-docking closed structure to adapt to different application scenarios.

[0041] Referring to Figures 2 to 4As shown, in an embodiment, the housing 10 is provided with a flow guide channel 11 at the top of the inner cavity, and the top cover 50 is provided with a flow guide hole corresponding to the flow guide channel 11, and the inner cavity, the flow guide channel 11, the flow guide hole and the stepped cavity are sequentially communicated.

[0042] Specifically, the arrangement of the flow guide channel 11 and the flow guide hole can quickly guide the gas in the inner cavity to the exhaust valve 60. When the water pump is started and the water flow enters the inner cavity to form a positive pressure, the air in the inner cavity rapidly enters the flow guide hole through the flow guide channel 11 under the action of pressure, and then reaches the stepped cavity of the exhaust valve 60 through the flow guide hole and is discharged. Compared with the structure without the flow guide channel 11 and the flow guide hole, this design has an exhaust structure, so that the water pump can establish a stable pressure and flow more quickly, and the start-up time is reduced. In addition, the flow guide channel 11 and the flow guide hole can guide and rectify the water flow. After the water flow enters the inner cavity, due to the presence of the flow guide channel 11, the water flow can enter the flow guide hole in a predetermined direction, avoiding the phenomenon of vortex and turbulence of the water flow at the top of the inner cavity. Stable water flow can improve the hydraulic efficiency of the water pump, reduce energy loss, and make the water pump more efficient when conveying water flow.

[0043] In an embodiment, a sealing element 70 is further arranged between the mounting cap 63 and the top cover 50.

[0044] Specifically, the sealing element 70 can fill the small gap between the mounting cap 63 and the top cover 50, preventing the water flow in the inner cavity of the water pump from leaking from the connection. During the operation of the water pump, the inner cavity usually bears a certain pressure, and the sealing element 70 will elastically deform under the action of pressure, tightly fit on the connecting surface, and form a reliable sealing barrier. In addition, good sealing effect can ensure the stability of the pressure in the inner cavity of the water pump. The stability of the pressure in the inner cavity is crucial to the performance of the water pump, which affects parameters such as head, flow and efficiency of the water pump. If the sealing between the mounting cap 63 and the top cover 50 is not tight, the pressure in the inner cavity will leak, so that the water pump cannot reach the designed working pressure, thereby reducing the head and flow of the water pump and affecting the normal operation of the water pump. The presence of the sealing element 70 can effectively prevent this situation from happening, ensuring that the water pump can stably output the required water flow and water pressure under various working conditions.

[0045] Referring to Figures 2 to 4 As shown, in an embodiment, the motor 30 is composed of a rotating shaft 31, a rotor 32 and a stator 33, the top cover 50 and the housing 10 form an outer cavity, the rotating shaft 31 is arranged in the inner cavity, the rotor 32 and the rotating shaft 31 form a gap assembly, the impeller 40 is drivingly connected to the rotating shaft 31, and the stator 33 is arranged in the outer cavity and corresponds to the rotor 32.

[0046] Specifically, the stator 33 is arranged in the outer cavity, and the rotor 32 is arranged in the inner cavity and is gap-fitted with the rotating shaft 31. This arrangement effectively isolates the electromagnetic part of the motor 30 from the water flow part of the water pump, reducing the impact of water flow on the operation of the motor 30. For example, it avoids problems such as water flow fluctuations or impurities entering the motor 30, causing short circuits or insulation damage in the motor 30, thereby improving the operational stability of the motor 30 in complex working environments. At the same time, the arrangement of the stator 33 corresponding to the rotor 32 ensures the symmetry and stability of the magnetic circuit of the motor 30, reducing the vibration and noise of the motor 30. In addition, the gap-fitting of the rotor 32 and the rotating shaft 31 allows the rotor 32 to freely adjust its position during rotation, reducing friction and wear between the rotor 32 and the rotating shaft 31 due to assembly errors or thermal expansion, which not only prolongs the service life of the motor 30 components, but also reduces energy loss during operation of the motor 30, improving the efficiency of the motor 30. In addition, the reliable transmission connection between the impeller 40 and the rotating shaft 31 ensures that the torque output by the motor 30 can be efficiently transmitted to the impeller 40, allowing the impeller 40 to rotate stably and efficiently, thereby improving the hydraulic performance of the water pump.

[0047] In an embodiment, the outer cavity is also provided with a control panel, which is electrically connected to the motor 30.

[0048] Specifically, the control panel is electrically connected to the stator 33 part of the motor 30. The control panel can accurately control the rotational speed and operating time of the water pump according to actual needs, thereby achieving precise adjustment of the flow rate and lift of the water pump. For example, in an agricultural irrigation system, the rotational speed of the water pump can be adjusted by the control panel according to soil moisture, crop water demand, and other parameters, so that the water pump outputs the appropriate amount of water, meeting the irrigation demand and avoiding waste of water resources. In a high-rise building water supply system, the lift of the water pump can be adjusted in real time according to the water pressure demand of different floors to ensure stable water pressure for each floor. In addition, the speed control of the motor 30 by the control panel allows the motor 30 to always operate near the optimal efficiency point. Traditional water pumps usually operate at a constant speed, and the efficiency of the motor 30 is low under partial load. However, water pumps with variable frequency speed control can adjust the rotational speed of the motor 30 according to actual load requirements, reducing the energy consumption of the motor 30.

[0049] Referring to Figures 1 to 4 As shown in the drawings, in an embodiment, the bottom cover 20 is also provided with a water inlet 21 and a water outlet 22, the water inlet 21 is located below the impeller 40, and the water outlet 22 is located on the side of the impeller 40.

[0050] Specifically, the water inlet 21 is located below the impeller 40, which can make full use of the pressure difference to make the water flow smoothly into the impeller 40. The water outlet 22 is located on the side of the impeller 40, which is consistent with the direction of the centrifugal force of the water flow when the impeller 40 rotates. When the impeller 40 rotates, the water flow is thrown to the side of the impeller 40 under the action of the centrifugal force, and then flows out smoothly from the water outlet 22. The reasonable design of the water outlet 22 can reduce the energy loss of the water flow during the water outlet process, so that the water flow can be discharged at a high flow rate and flow rate, and the lift and flow performance of the water pump are improved. At the same time, the design of the side water outlet is also conducive to the connection of the water pump and the external pipeline, which reduces the difficulty and resistance of the pipeline arrangement.

[0051] Referring to Figures 1 to 4 As shown in the drawings, in an embodiment, the outer periphery of the bottom cover 20 and the top cover 50 is sleeved with a shock pad 80.

[0052] Specifically, during the operation of the water pump, vibrations will be generated due to the rotation of the motor 30, the rotation of the impeller 40, and the instability of the water flow. The presence of the shock pad 80 can effectively absorb and buffer these vibration energies, reducing the transmission of vibrations to the external structure. In addition, the shock pad 80 not only reduces the transmission of vibrations to the external structure, but also protects the components of the water pump itself. Vibrations can cause the impeller 40, bearings, seals 70 and other components inside the water pump to be subjected to additional stress, accelerating the wear and damage of the components and shortening the service life of the water pump. By absorbing vibration energy, the shock pad 80 reduces the vibration stress on the components, reduces the collision and friction between the components, thereby prolonging the service life of the water pump and reducing maintenance costs.

[0053] The utility model discloses still a kind of toilet, including the water pump, ceramic body and cover plate as described above, the water pump is arranged in cover plate, and cover plate is installed in ceramic body.

[0054] Specifically, by setting a water pump in the toilet, then when the water pump is not working, the inner cavity is communicated with the atmosphere, when the water pump starts, the motor 30 drives the impeller 40 to rotate to form suction, the water flow enters the inner cavity along the bottom cover 20, at this time, the water flow extrudes the air in the inner cavity, so that the air is discharged through the exhaust valve 60, effectively avoiding the obstruction of air to the water flow during the starting stage, so that the water pump can establish stable initial flow in a short time, reduce the flow fluctuation range, that is, effectively solve the problem that the output water quantity is inaccurate and abnormal noise occurs due to the mixing of air in water or the retention of air in the internal cavity during starting.

[0055] The above embodiment is a preferred implementation scheme of the utility model, in addition to this, the utility model can be realized in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A water pump having a discharge valve, characterized by, It comprises a shell, a bottom cover, a motor, an impeller, a top cover and an exhaust valve, the bottom cover is connected with the lower end of the shell to form an inner cavity, the top cover is connected with the upper end of the shell, the motor and the impeller are arranged in the inner cavity, the impeller is drivingly connected with the motor, the exhaust valve is connected with the top cover and communicates with the inner cavity, the motor drives the impeller to rotate to form suction to make water flow into the inner cavity along the bottom cover to form positive pressure water flow to make the air in the inner cavity flow out along the exhaust valve. The exhaust valve is composed of a bracket, a gasket and a mounting cap, the mounting cap is connected with the top cover, the mounting cap is provided with a stepped cavity, the stepped cavity communicates with the inner cavity, the bracket is arranged in the stepped cavity, the gasket is sleeved on the upper end of the bracket, and the air enters the stepped cavity from the inner cavity and flows out.

2. The water pump having an exhaust valve according to claim 1, characterized by, The bracket is a water floating structure, when the water flow enters the stepped cavity and discharges the air, the bracket floats up, so that the gasket abuts against the cavity wall of the stepped cavity to form a sealed state.

3. The water pump having an exhaust valve according to claim 2, characterized by, The shell is provided with a flow guide channel at the top of the inner cavity, the top cover is provided with a flow guide hole corresponding to the flow guide channel, and the inner cavity, the flow guide channel, the flow guide hole and the stepped cavity communicate in sequence.

4. The water pump having an exhaust valve according to claim 2, characterized by, A sealing member is further arranged between the mounting cap and the top cover.

5. The water pump having an exhaust valve according to claim 2, characterized by, The motor is composed of a rotating shaft, a rotor and a stator, the top cover and the shell form an outer cavity, the rotating shaft is arranged in the inner cavity, the rotor is gap-fitted with the rotating shaft, the impeller is drivingly connected with the rotating shaft, the stator is arranged in the outer cavity and corresponds to the rotor.

6. The water pump having an exhaust valve according to claim 1, characterized by, The outer cavity is further provided with a control panel, and the control panel is electrically connected with the motor.

7. The water pump having an exhaust valve according to claim 6, characterized by, The bottom cover is further provided with a water inlet and a water outlet, the water inlet is located below the impeller, and the water outlet is located at the side of the impeller.

8. The water pump having an exhaust valve according to claim 1, characterized by, The outer periphery of the bottom cover and the top cover is sleeved with a damping pad.

9. The water pump having a gas exhaust valve according to claim 1, characterized by, The water pump with the exhaust valve according to any one of claims 1-9 is provided.

10. A toilet bowl characterized by ​

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