Pump body, cleaning equipment and cooking equipment

Abstract

The invention relates to a pump body, cleaning equipment and cooking equipment. The pump body comprises a pump shell which is provided with an inlet, an outlet and a fluid cavity communicating with the inlet and the outlet. The impeller group is rotationally arranged in the fluid chamber; the power part is used for driving the impeller set to rotate and has a first working mode and a second working mode, in the first working mode, the power part drives the impeller set to rotate so as to suck a first medium into the fluid cavity through the inlet and then discharge the first medium through the outlet, and in the second working mode, the power part drives the impeller set to rotate so as to discharge the first medium through the outlet; the second medium is sucked into the fluid cavity through the inlet and then is discharged through the outlet, and the first medium and the second medium are fluids with different densities. The pump body can drive the impeller set in different modes by switching the different working modes of the power part, then conveying or pressurizing of fluid with different densities is achieved, the functions of the pump body are rich, and the use requirements under different conditions can be met.

Description

Technical Field

[0001] This application belongs to the technical field of power equipment, and particularly relates to a pump body, a cleaning device, and a cooking device. Background Art

[0002] A pump is a machine that transports fluids or increases the pressure of fluids. Common pumps include water pumps and air pumps, etc. Existing pumps usually can only act on one type of fluid. For example, a water pump is used to transport liquids or increase the pressure of liquids; an air pump is used to transport gases or increase the pressure of gases. The functions of existing pumps are relatively single. Summary of the Invention

[0003] This application provides a pump body, a cleaning device, and a cooking device to solve the technical problem of the relatively single function of pumps.

[0004] To solve the above technical problem, a technical solution adopted in this application is: A pump body, comprising: a pump housing, the pump housing is provided with an inlet, an outlet, and a fluid chamber respectively communicating with the inlet and the outlet; an impeller group, rotatably arranged in the fluid chamber; a power member, connected to the pump housing, for driving the impeller group to rotate, wherein the power member has a first working mode and a second working mode. In the first working mode, the power member drives the impeller group to rotate, so as to suck a first medium into the fluid chamber through the inlet and then discharge it through the outlet. In the second working mode, the power member drives the impeller group to rotate, so as to suck a second medium into the fluid chamber through the inlet and then discharge it through the outlet, wherein the first medium and the second medium are fluids with different densities.

[0005] According to an embodiment of this application, the fluid chamber includes a first chamber and a second chamber communicating with each other. The impeller group includes a first impeller and a second impeller. The first impeller is rotatably arranged in the first chamber, and the second impeller is rotatably arranged in the second chamber; in the first working mode, the power member drives the first impeller to rotate, so as to suck a first medium into the first chamber through the inlet and then discharge it through the outlet. In the second working mode, the power member drives the second impeller to rotate, so as to suck a second medium into the second chamber through the inlet and then discharge it through the outlet.

[0006] According to an embodiment of this application, in the first working mode, the power member drives the first impeller to rotate at a first rotational speed, so as to suck a first medium into the first chamber through the inlet and then discharge it through the outlet; in the second working mode, the power member drives the second impeller to rotate at a second rotational speed, so as to suck a second medium into the second chamber through the inlet and then discharge it through the outlet, and the first rotational speed is greater than the second rotational speed.

[0007] According to an embodiment of the present application, the power member has an output shaft, the output shaft is connected to the first impeller and the second impeller, the output shaft is arranged to rotate in a first rotation direction in the first working mode and rotate in a second rotation direction in the second working mode, and the second rotation direction is opposite to the first rotation direction.

[0008] According to an embodiment of the present application, the rotating shafts of the first impeller and the second impeller are coaxially arranged and are located on the same side of the power member.

[0009] According to an embodiment of the present application, the second chamber communicates with the inlet through the first chamber.

[0010] According to an embodiment of the present application, in the first working mode, the power member only drives the first impeller to rotate or drives the first impeller and the second impeller to rotate simultaneously, and in the second working mode, the power member only drives the second impeller to rotate.

[0011] According to an embodiment of the present application, the output shaft is connected to the first impeller through a first one-way bearing, and the first one-way bearing is used to drive the first impeller to rotate in the first rotation direction; the output shaft is connected to the second impeller through a second one-way bearing, and the second one-way bearing is used to drive the second impeller to rotate in the second rotation direction, or the output shaft is relatively fixed to the second impeller and is used to drive the second impeller to rotate in the first rotation direction and the second rotation direction respectively.

[0012] According to an embodiment of the present application, the pump housing is further provided with a first flow channel and a second flow channel, the first flow channel communicates with the first chamber, the second flow channel communicates with the second chamber, and the first flow channel and the second flow channel converge and then communicate with the outlet.

[0013] According to an embodiment of the present application, the first flow channel is provided with a blocking member, and in the first working mode, the blocking member opens the first flow channel, and in the second working mode, the blocking member blocks the first flow channel.

[0014] According to an embodiment of the present application, the blocking member includes a wind chamber cover, the wind chamber cover is rotatably arranged in the first flow channel, a stepped portion is formed in the pump housing, and in the second working mode, the second medium can push the wind chamber cover to rotate until it abuts against the stepped portion, and the wind chamber cover blocks the first flow channel.

[0015] According to an embodiment of the present application, the density of the first medium is less than the density of the second medium.

[0016] According to an embodiment of the present application, the second chamber is closer to the power member than the first chamber, and the density of the second medium is greater than that of the first medium.

[0017] According to an embodiment of the present application, the pump body further includes a heating member, which is disposed in the first chamber and wound around the outer periphery of the first impeller.

[0018] According to an embodiment of the present application, the pump housing includes a first housing, a second housing, and a chassis. The first housing is provided with the inlet, the first chamber, and an installation cavity. The second housing is installed in the installation cavity, and the second housing is provided with the second chamber. The chassis covers one end of the second housing facing away from the first chamber. A first flow channel is formed on the circumferential side of the first housing corresponding to the first chamber, and a second flow channel is formed on the circumferential side of the second housing corresponding to the second chamber. The second housing has an opening for communicating the second chamber with the second flow channel, and the first housing further forms the outlet.

[0019] According to an embodiment of the present application, the power member is installed at one end of the chassis facing away from the inlet, and the power member is fixedly connected to the first housing by clamping. The output shaft of the power member passes through the chassis and extends into the second chamber and the first chamber.

[0020] According to an embodiment of the present application, the impeller group includes a first impeller and a second impeller coaxially arranged. The first impeller and the second impeller are connected to each other or integrally formed. In the first working mode, the power member drives the first impeller and the second impeller to rotate at a first speed to suck the first medium into the fluid chamber through the inlet and then discharge it through the outlet. In the second working mode, the power member drives the first impeller and the second impeller to rotate at a second speed to suck the second medium into the fluid chamber through the inlet and then discharge it through the outlet. The first speed is greater than the second speed.

[0021] According to an embodiment of the present application, the pump housing includes a main housing, and the main housing is provided with the inlet, the fluid chamber, and the outlet. The power member is installed on a side of the main housing away from the inlet.

[0022] To solve the above technical problems, another technical solution adopted by the present application is: a cleaning device, including a box body and a spraying system. The spraying system includes a cleaning pump, and the cleaning pump uses the above-mentioned pump body. The pump body is used to pump the second medium into the box body in the cleaning mode and pump the first medium into the box body in the drying mode. The first medium is a gas, and the second medium is a liquid.

[0023] To solve the above technical problems, another technical solution adopted by this application is: a cooking device, including a cooking main body and a cleaning system. The cleaning system includes a cleaning pump, and the cleaning pump adopts the above pump body. The pump body is used to pump the second medium into the cooking main body in the cleaning mode and pump the first medium into the cooking main body in the drying mode. The first medium is a gas, and the second medium is a liquid.

[0024] The beneficial effects of this application are as follows: The power component drives the impeller group to rotate, and the power component has two working modes. In the first working mode, the power component drives the impeller group to rotate to achieve the transportation or pressurization of the first medium. In the second working mode, the power component drives the impeller group to rotate to achieve the transportation or pressurization of the second medium. By switching different working modes of the power component in the pump body of this application, different modes of driving the impeller group can be realized, and then the transportation or pressurization of fluids with different densities can be achieved. The functions of the pump body are rich, which can meet the usage requirements in different situations. In addition, the pump body is provided with an inlet, an outlet, and a fluid chamber respectively communicating with the inlet and the outlet. By switching the working mode of the power component to drive the impeller group to rotate in the fluid chamber, the transportation or pressurization of fluids with different densities can be realized. The pump body is convenient to control, has a simple structure, a small overall volume, strong adaptability, and wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where:

[0026] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the pump body of this application;

[0027] Figure 2 is a cross-sectional structural schematic diagram of an embodiment of the pump body of this application;

[0028] Figure 3 is a cross-sectional structural schematic diagram of an embodiment of the pump body of this application, in which the impeller group is removed;

[0029] Figure 4 is a cross-sectional structural schematic diagram of another perspective of an embodiment of the pump body of this application;

[0030] Figure 5 is an exploded structural schematic diagram of an embodiment of the pump body of this application;

[0031] Figure 6 is a structural schematic diagram of the first housing of an embodiment of the pump body of this application;

[0032] Figure 7 is a schematic cross-sectional structure diagram of another embodiment of the pump body of the present application;

[0033] Figure 8 is an exploded structure diagram of another embodiment of the pump body of the present application;

[0034] Figure 9 is a schematic framework structure diagram of an embodiment of the cleaning device of the present application;

[0035] Figure 10 is a schematic framework structure diagram of an embodiment of the cooking device of the present application. Detailed Embodiments

[0036] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed embodiments of the present application in conjunction with the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Additionally, it should be noted that for the sake of description, only the parts related to the present application are shown in the drawings rather than all the structures. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0037] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0039] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] Please refer to Figures 1 to 3 , Figure 1 which is a schematic perspective view of an embodiment of the pump body of the present application; Figure 2 which is a schematic cross-sectional view of an embodiment of the pump body of the present application; Figure 3 which is a schematic cross-sectional view of an embodiment of the pump body of the present application, with the impeller group removed.

[0041] An embodiment of the present application provides a pump body 100. The pump body 100 includes a pump housing 110, an impeller group 120, and a power member 130. The pump housing 110 is provided with an inlet 111, an outlet 112, and a fluid chamber 113 that communicates with the inlet 111 and the outlet 112 respectively. The impeller group 120 is rotatably disposed in the fluid chamber 113 to achieve the conveyance or pressurization of fluid. The power member 130 is connected to the pump housing 110 and is used to drive the impeller group 120 to rotate. The power member 130 has a first working mode and a second working mode. In the first working mode, the power member 130 drives the impeller group 120 to rotate to suck a first medium through the inlet 111 into the fluid chamber 113 and then discharge it through the outlet 112. In the second working mode, the power member 130 drives the impeller group 120 to rotate to suck a second medium through the inlet 111 into the fluid chamber 113 and then discharge it through the outlet 112. The first medium and the second medium are fluids with different densities.

[0042] In the present application, the power member 130 drives the impeller group 120 to rotate, and the power member 130 has two working modes. In the first working mode, the power member 130 driving the impeller group 120 to rotate can achieve the conveyance or pressurization of the first medium. In the second working mode, the power member 130 driving the impeller group 120 to rotate can achieve the conveyance or pressurization of the second medium. By switching different working modes of the power member 130 in the pump body 100 of the present application, different modes of driving the impeller group 120 can be achieved, and further the conveyance or pressurization of fluids with different densities can be achieved. The pump body 100 has rich functions and can meet the usage requirements in different situations.

[0043] In addition, the pump body 100 in the present application is provided with an inlet 111, an outlet 112, and a fluid chamber 113 that communicates with the inlet 111 and the outlet 112 respectively. By switching the working mode of the power component 130 to drive the impeller group 120 to rotate in the fluid chamber 113, the transportation or pressurization of fluids with different densities can be achieved. The pump body 100 is convenient to control, has a simple structure, a small overall volume, strong adaptability, and wide applications.

[0044] It should be noted that the fact that the pump body 100 in the present application has a first working mode and a second working mode does not mean that the pump body 100 in the present application only has two working modes. Instead, it means that the pump body 100 in the present application at least includes the first working mode and the second working mode. According to the requirements of the actual usage scenario, the working mode can be increased to drive more fluids with different densities. The structure of the impeller group 120 and the driving parameters of the power component 130 can be determined according to the density of the medium to be transported or pressurized in the actual usage scenario.

[0045] Specifically, one of the first medium and the second medium can be a gas, and the other can be a liquid. Of course, in other embodiments, the first medium and the second medium can also be other fluids.

[0046] Please continue to refer to Figure 2 and Figure 3 , in some embodiments, the fluid chamber 113 includes a first chamber 1131 and a second chamber 1132 that communicate with each other. The impeller group 120 includes a first impeller 121 and a second impeller 122. The first impeller 121 is rotatably arranged in the first chamber 1131. The second impeller 122 is rotatably arranged in the second chamber 1132. In the first working mode, the power component 130 drives the first impeller 121 to rotate, so as to suck the first medium into the first chamber 1131 through the inlet 111 and then discharge it through the outlet 112. In the second working mode, the power component 130 drives the second impeller 122 to rotate, so as to suck the second medium into the second chamber 1132 through the inlet 111 and then discharge it through the outlet 112.

[0047] In this embodiment, the fluid chamber 113 includes a first chamber 1131 and a second chamber 1132, and the first chamber 1131 and the second chamber 1132 communicate with each other. Correspondingly, the impeller group 120 includes two independent first impellers 121 and second impellers 122. The first impeller 121 is rotatably disposed in the first chamber 1131, and the second impeller 122 is rotatably disposed in the second chamber 1132. By switching the working mode, the power member 130 can drive the first impeller 121 to rotate in the first working mode, so that the first medium can be sucked into the first chamber 1131 from the inlet 111 and then discharged from the outlet 112. Moreover, the power member 130 can also drive the second impeller 122 to rotate in the second working mode, so that the second medium can be sucked into the second chamber 1132 from the inlet 111 and then discharged from the outlet 112, realizing the transportation or pressurization of different media by the same pump body 100. By using two independent impellers to rotate in the first chamber 1131 and the second chamber 1132 respectively, the matching of the impeller and the chamber can be improved. In the first working mode, the first impeller 121 can achieve the transportation and pressurization of the first medium. In the second working mode, the second impeller 122 can achieve the transportation and pressurization of the second medium. The pump body 100 can drive the transportation or pressurization of the two media in two working modes respectively, improving the overall pumping efficiency of the pump body 100.

[0048] It should be noted that the specific structures of the first impeller 121 and the second impeller 122, as well as the structural designs of the first chamber 1131 and the second chamber 1132, may be related to the characteristics of the media they are used to transport or pressurize. The first impeller 121 and the first chamber 1131 adopt an impeller structure and a chamber design that match the first medium, and the second impeller 122 and the second chamber 1132 adopt an impeller structure and a chamber design that match the second medium. For example, one of the first medium and the second medium is a gas, and the other is a liquid. The gas and the liquid are fluids with different densities. Also due to the density difference between the two, relatively speaking, the size of the first chamber 1131 for driving the liquid is smaller, and the sizes of the inlet and outlet ends of the first chamber 1131 are both smaller, while the size for driving the gas is larger; the number of blades of the impeller for driving the gas is smaller, and the curvature of the blades is smaller; while the number of blades of the impeller for driving the liquid is larger, and the curvature of the blades is larger. Therefore, according to the different characteristics of the media required to be driven in the usage scenario of the pump body 100, appropriate impellers can be selected and appropriate chambers can be matched.

[0049] Among them, the power component 130 can achieve the switching of working modes in different ways. In some embodiments, the power component 130 can achieve the switching of working modes through different rotational speeds. In the first working mode, the power component 130 drives the first impeller 121 to rotate at a first rotational speed, so as to suck the first medium through the inlet 111 into the first chamber 1131 and then discharge it through the outlet 112. In the second working mode, the power component 130 drives the second impeller 122 to rotate at a second rotational speed, so as to suck the second medium through the inlet 111 into the second chamber 1132 and then discharge it through the outlet 112. The first rotational speed is greater than the second rotational speed.

[0050] By adjusting the rotational speed of the power component 130, the transportation or pressurization of fluids with different densities can be achieved, thereby realizing the switching of working modes. Therefore, by driving the first impeller 121 and the second impeller 122 to rotate at the first rotational speed and the second rotational speed respectively, the power component 130 can respectively achieve the transportation or pressurization of the first medium and the second medium with different densities. The method of realizing the switching of working modes through different rotational speeds is simple and controllable. Generally, for fluids with higher densities, relatively lower rotational speeds can achieve pressurization; for fluids with lower densities, relatively higher rotational speeds can achieve pressurization. Since the first rotational speed is greater than the second rotational speed, the fluid density of the first medium is lower than that of the second medium. The specific difference between the first rotational speed and the second rotational speed can be jointly determined according to the density difference of the actual driving medium and the structural characteristics of the first impeller 121 and the second impeller 122 themselves, and no limitation is made here.

[0051] In still other embodiments, the power component 130 can also achieve the switching of working modes through different rotational directions. Among them, the power component 130 has an output shaft 131. The output shaft 131 is connected to the first impeller 121 and the second impeller 122. The output shaft 131 is arranged to rotate in a first rotational direction in the first working mode and rotate in a second rotational direction in the second working mode. The second rotational direction is opposite to the first rotational direction. Therefore, in the first working mode, the output shaft 131 drives the first impeller 121 to rotate in the first rotational direction, so as to suck the first medium through the inlet 111 into the first chamber 1131 and then discharge it through the outlet 112; in the second working mode, the output shaft 131 drives the second impeller 122 to rotate in the second rotational direction, so as to suck the second medium through the inlet 111 into the second chamber 1132 and then discharge it through the outlet 112. By adjusting the rotational direction of the power component 130, the transportation or pressurization of fluids with different densities can be achieved, thereby realizing the switching of working modes, and the method of switching working modes is simpler and more controllable.

[0052] It should be noted that when the power component 130 switches the working mode by changing the rotation direction of the output shaft 131, the rotational speeds of the output shaft 131 in different rotation directions can be the same or different, which can be specifically determined according to the density difference of the actual driving medium and the structural characteristics of the first impeller 121 and the second impeller 122 themselves, and no restrictions are imposed here.

[0053] In some embodiments, the rotating shafts of the first impeller 121 and the second impeller 122 are coaxially arranged and on the same side of the power component 130. Since the rotating shafts of the first impeller 121 and the second impeller 122 are coaxially arranged, the power component 130, the first impeller 121 and the second impeller 122 are reasonably arranged, the linkage mode is simpler, and the driving is more stable.

[0054] In some embodiments, the second chamber 1132 communicates with the inlet 111 through the first chamber 1131. At this time, the inlet 111, the first chamber 1131 and the second chamber 1132 are in a sequentially communicating state, and the second chamber 1132 can communicate with the inlet 111 through the first chamber 1131. The first chamber 1131 and the second chamber 1132 are reasonably arranged and closely arranged, and the overall volume of the pump body 100 is smaller. Of course, in other embodiments, the first chamber 1131 and the second chamber 1132 may not communicate with each other and respectively communicate with the inlet 111 through independent inlet channels, that is, the medium entering from the inlet 111 can be diverted to the first chamber 1131 and the second chamber 1132 through the inlet channels.

[0055] Specifically, the inlet 111 can be arranged facing the inlet 111 side of the first chamber 1131 and the second chamber 1132, that is, the axes of the first impeller 121 and the second impeller 122 pass through the center of the inlet 111, so as to facilitate the entry of the first medium and the second medium into the fluid chamber 113.

[0056] Among them, the density of the first medium is less than that of the second medium. Since the second chamber 1132 communicates with the inlet 111 through the first chamber 1131, the first chamber 1131 is relatively close to the inlet 111. The first chamber 1131 close to the inlet 111 is convenient for the medium to flow in, and the caliber of the inlet 111 side of the first chamber 1131 can be set larger, so that the first chamber 1131 is conducive to driving the medium with a smaller density.

[0057] In addition, the second chamber 1132 is closer to the power component 130 than the first chamber 1131, and the density of the second medium is greater than that of the first medium. Since a larger torque is required to drive a medium with a larger density, being closer to the power component 130 is beneficial to driving stability. Therefore, the second chamber 1132 is closer to the power component 130, the second impeller 122 can be selected as the impeller for driving a high-density fluid, the density of the second medium is greater than that of the first medium, and the driving of the power component 130 is more stable.

[0058] Specifically, the first medium may be a gas, and the second medium may be a liquid.

[0059] Please continue to refer to Figure 4 , Figure 4 which is a schematic cross-sectional structure view of another perspective of an embodiment of the pump body of the present application. In some embodiments, the pump body 100 further includes a heating element 150. The heating element 150 is disposed in the first chamber 1131. And the heating element 150 is wound around the outer periphery of the first impeller 121. The heating element 150 can heat the fluid flowing through the first chamber 1131 in a usage scenario with a heating requirement. When the second chamber 1132 is communicated with the inlet 111 through the first chamber 1131, since the medium entering the second chamber 1132 also flows through the first chamber 1131, the heating element 150 can heat both the first medium and the second medium.

[0060] Furthermore, since the second chamber 1132 is communicated with the inlet 111 through the first chamber 1131, the medium entering the second chamber 1132 from the inlet 111 needs to pass through the first chamber 1131. Therefore, in order to enable the second medium to flow into the second chamber 1132 without being affected, in the second working mode, the power member 130 only drives the second impeller 122 to rotate, and the second medium can be smoothly sucked into the second chamber 1132 after passing through the inlet 111 and the first chamber 1131, and finally discharged through the outlet 112. In the second working mode, the power member 130 only drives the second impeller 122 to rotate, which can avoid the rotation of the first impeller 121 affecting the entry of the second medium into the second chamber 1132, thereby improving the pumping efficiency of the pump body 100 in the second working mode. However, since the entry of the medium into the first chamber 1131 is not interfered by the second impeller 122 in the second chamber 1132, in the first working mode, the power member 130 can only drive the first impeller 121 to rotate or can drive the first impeller 121 and the second impeller 122 to rotate simultaneously, and the first medium can be smoothly sucked into the first chamber 1131 through the inlet 111 and then discharged through the outlet 112.

[0061] Among them, when in the first working mode, the power component 130 drives the first impeller 121 and the second impeller 122 to rotate simultaneously. Most of the first medium enters the first chamber 1131 and then flows out from the outlet 112 under the drive of the first impeller 121. A small part of the first medium will enter the second chamber 1132. The first medium entering the second chamber 1132 can also be discharged normally, and there are at least two discharge paths: Since the amount of the first medium is small, part of the first medium entering the second chamber 1132 will also flow out directly from the outlet 112 under the drive of the second impeller 122; in addition, since the driving force of the first impeller 121 is greater, part of the first medium entering the second chamber 1132 will also flow back into the first chamber 1131 under the suction of the first impeller 121 and then flow out from the outlet 112 under the drive of the first impeller 121. The pump body 100 can play a good pumping role. In addition, when in the first working mode, the power component 130 drives the first impeller 121 and the second impeller 122 to rotate simultaneously, and when in the second working mode, when the power component 130 only drives the second impeller 122 to rotate, the power component 130 and the second impeller 122 can be directly relatively fixed without additionally arranging a clutch mechanism, the structure of the pump body 100 is simpler, and the overall volume is smaller.

[0062] Specifically, the output shaft 131 is connected to the first impeller 121 through a first one-way bearing 132, and the first one-way bearing 132 is used to drive the first impeller 121 to rotate in the first rotation direction. Since the output shaft 131 is connected to the first impeller 121 through the first one-way bearing 132, the first impeller 121 can only rotate in the first rotation direction. At this time, in the second working mode, when the output shaft 131 rotates in the second rotation direction, the first impeller 121 does not rotate accordingly, and the power component 130 can only drive the second impeller 122 to rotate, so as to smoothly suck the second medium into the second chamber 1132 after passing through the inlet 111 and the first chamber 1131, and finally discharge it through the outlet 112.

[0063] Further, the output shaft 131 is relatively fixed to the second impeller 122 and is used to drive the second impeller 122 to rotate in the first rotation direction and the second rotation direction respectively. In the first working mode, the power member 130 drives the first impeller 121 and the second impeller 122 to rotate in the first rotation direction simultaneously. In the second working mode, the power member 130 only drives the second impeller 122 to rotate in the second rotation direction. The output shaft 131 is directly relatively fixed to the second impeller 122, and there is no need to additionally provide a one-way bearing, so the structure of the pump body 100 is simpler and the overall volume is smaller. Of course, in other embodiments, the output shaft 131 may also be connected to the second impeller 122 through a second one-way bearing (not shown in the figure), and the second one-way bearing is used to drive the second impeller 122 to rotate in the second rotation direction. Since the output shaft 131 is connected to the second impeller 122 through the second one-way bearing, the second impeller 122 can only rotate in the second rotation direction. At this time, in the first working mode, the power member 130 only drives the first impeller 121 to rotate in the first rotation direction, and in the second working mode, the power member 130 only drives the second impeller 122 to rotate in the second rotation direction.

[0064] Please continue to refer to Figure 2 and Figure 3 As shown in, in some embodiments, the pump housing 110 is further provided with a first flow channel 1121 and a second flow channel 1122. The first flow channel 1121 communicates with the first chamber 1131, and the second flow channel 1122 communicates with the second chamber 1132. After the first flow channel 1121 and the second flow channel 1122 converge, they communicate with the outlet 112. In the first working mode, the power member 130 drives the first impeller 121 to rotate in the first rotation direction. The negative pressure formed by the rotation of the first impeller 121 can suck the first medium from the inlet 111 into the first chamber 1131, and the rotational centrifugal force generated by the rotation of the first impeller 121 pressurizes the first medium and pushes it towards the first flow channel 1121 and discharges it through the outlet 112. In the second working mode, the power member 130 only drives the second impeller 122 to rotate in the second rotation direction. The negative pressure formed by the rotation of the second impeller 122 can suck the second medium from the inlet 111 through the first chamber 1131 into the second chamber 1132, and the rotational centrifugal force generated by the rotation of the second impeller 122 pressurizes the second medium and pushes it towards the second flow channel 1122 and discharges it through the outlet 112.

[0065] Specifically, in order to facilitate the outflow of the first medium to the first flow channel 1121, the connection position of the first flow channel 1121 and the first chamber 1131 is located on the outer periphery of the first impeller 121. In order to facilitate the outflow of the second medium to the second flow channel 1122, the connection position of the second flow channel 1122 and the second chamber 1132 is located on the outer periphery of the second impeller 122.

[0066] Please continue to refer to Figure 2 and Figure 4, since the first flow channel 1121 and the second flow channel 1122 are connected to the outlet 112 after confluence, in order to prevent the second medium pushed by the rotation of the second impeller 122 into the second flow channel 1122 from flowing back into the first chamber 1131 and the second chamber 1132 in the second working mode, in some embodiments, a blocking member 140 is provided in the first flow channel 1121. In the first working mode, the blocking member 140 opens the first flow channel 1121 to allow the first impeller 121 to push the first medium into the first flow channel 1121, and the first medium can flow out smoothly. In the second working mode, the blocking member 140 blocks the first flow channel 1121. At this time, the second medium driven by the second impeller 122 to flow into the second flow channel 1122 can flow out of the outlet 112 smoothly, preventing the second medium in the second flow channel 1122 from flowing back into the fluid chamber 113 through the first flow channel 1121. By providing the blocking member 140, the pumping efficiency of the pump body 100 in the second working mode can be improved.

[0067] Specifically, the blocking member 140 includes a wind chamber cover 141. The wind chamber cover 141 is rotatably arranged in the first flow channel 1121. A stepped portion 142 is formed in the pump housing 110. In the second working mode, the power member 130 only drives the second impeller 122 to rotate. The rotation of the second impeller 122 generates a rotational centrifugal force to pressurize and push the second medium into the second flow channel 1122. Since the pressure of the second medium at the outlet 112 is high, the second medium can push the wind chamber cover 141 to rotate until it abuts against the stepped portion 142, and the wind chamber cover 141 blocks the first flow channel 1121, preventing the second medium from flowing back into the fluid chamber 113 through the first flow channel 1121. In the first working mode, when the power member 130 drives the first impeller 121 and the second impeller 122 to rotate synchronously, most of the first medium flows out of the outlet 112 under the drive of the first impeller 121, and a small part of the first medium enters the second chamber 1132 and flows out of the outlet 112 under the drive of the second impeller 122. Therefore, the pressure of the first medium flowing out of the first flow channel 1121 is relatively high, and the pressure of the first medium flowing out of the second flow channel 1122 is relatively low. The wind chamber cover 141 can rotate and remain in the state of opening the first flow channel 1121.

[0068] In other embodiments, the blocking member 140 may further include an electromagnetic control valve, and the opening and closing of the electromagnetic control valve are realized by the on-off of an electrical signal, thereby realizing the opening or blocking of the first flow channel 1121.

[0069] Please continue to refer to Figure 5 and Figure 6 , Figure 5 is an exploded structural schematic diagram of an embodiment of the pump body of the present application; Figure 6 is a structural schematic diagram of the first housing of an embodiment of the pump body of the present application.

[0070] In some embodiments, the pump housing 110 includes a first housing 114, a second housing 115, and a chassis 116. The first housing 114 is provided with an inlet 111, a first chamber 1131, and a mounting cavity 1141. The second housing 115 is installed in the mounting cavity 1141. The second housing 115 is provided with a second chamber 1132, and the chassis 116 covers one end of the second housing 115 facing away from the first chamber 1131, which is beneficial for limiting the second impeller 122 in the second chamber 1132. A first flow channel 1121 is formed on the peripheral side of the first housing 114 corresponding to the first chamber 1131, and a second flow channel 1122 is formed on the peripheral side of the second housing 115 corresponding to the second chamber 1132. The second housing 115 has an opening for communicating the second chamber 1132 with the second flow channel 1122, and the first housing 114 further forms an outlet 112.

[0071] By separately providing the pump housing 110 as the first housing 114, the second housing 115, and the chassis 116, it is beneficial for installing the first impeller 121 in the first chamber 1131 of the first housing 114 and for installing the second impeller 122 in the second chamber 1132 of the second housing 115.

[0072] Wherein, the heating element 150 is arranged in the first chamber 1131 and extends outside the first housing 114 for communicating with an external power supply. The heating element 150 can be arranged around the outer periphery of a partial area of the first impeller 121, and the heating element 150 can be arranged avoiding the first flow channel 1121 to prevent affecting the outflow of the first medium to the first flow channel 1121.

[0073] Further, the power component 130 is installed at one end of the chassis 116 facing away from the inlet 111. The power component 130 is fixedly connected to the first housing 114 by clamping. The output shaft 131 of the power component 130 passes through the chassis 116 and extends into the second chamber 1132 and the first chamber 1131. Installing the power component 130 at one end of the chassis 116 facing away from the inlet 111 is beneficial for limiting the chassis 116 and the second housing 115 in the mounting cavity 1141.

[0074] Specifically, the output shaft 131 of the power component 130 passes through the chassis 116 and extends into the second chamber 1132 of the second housing 115 for being relatively fixed to the second impeller 122. The output shaft 131 of the power component 130 further extends into the first chamber 1131 of the first housing 114 and is relatively fixed to the first impeller 121 through a first one-way bearing 132. The free end of the output shaft 131 of the power component 130 passes through the first impeller 121 and abuts against the first impeller 121 through a gasket 1312 and a retaining ring 1313, and the output shaft 131 of the power component 130 can maintain a stable connection with the first impeller 121 and the second impeller 122.

[0075] In addition, a sealing ring 133 is provided at the installation location of the power component 130 and the first housing 114 to ensure the sealing performance of the fluid chamber 113 and guarantee the safe use of the power component 130.

[0076] In the above embodiment, the impeller group 120 includes two independent first impellers 121 and second impellers 122. Please continue to refer to Figure 7 and Figure 8 , Figure 7 which is a schematic cross-sectional structure diagram of another embodiment of the pump body of the present application; Figure 8 which is an exploded structure diagram of another embodiment of the pump body of the present application.

[0077] In some other embodiments, the impeller group 120 is an integral wheel structure. Among them, the impeller group 120 includes a first impeller 121 and a second impeller 122 arranged coaxially, and the first impeller 121 and the second impeller 122 are connected to each other or integrally formed. The first impeller 121 and the second impeller 122 are synchronously rotated and arranged in the fluid chamber 113. At this time, the rotation directions and rotation speeds of the first impeller 121 and the second impeller 122 are the same. In the first working mode, the power component 130 drives the first impeller 121 and the second impeller 122 to rotate at a first speed, so as to suck the first medium into the fluid chamber 113 through the inlet 111 and discharge it through the outlet 112. In the second working mode, the power component 130 drives the first impeller 121 and the second impeller 122 to rotate at a second speed, so as to suck the second medium into the fluid chamber 113 through the inlet 111 and discharge it through the outlet 112. The first speed is greater than the second speed.

[0078] At this time, the impeller group 120 includes a region of the first impeller 121 and a region of the second impeller 122, which are respectively used to realize the transportation or pressurization of the first medium and the second medium. The first impeller 121 and the second impeller 122 are relatively fixed and rotatably arranged in the same fluid chamber 113. By adjusting the speed output of the power component 130, it is possible to drive the impeller group 120 to rotate at different speeds, thereby realizing the switching of working modes. Generally, for fluids with a higher density, relatively lower speeds can achieve pressurization; for fluids with a lower density, relatively higher speeds can achieve pressurization. Since the first speed is greater than the second speed, the fluid density of the first medium is lower than that of the second medium. The specific difference between the first speed and the second speed can be jointly determined according to the density difference of the actual driving medium and the structural characteristics of the first impeller 121 and the second impeller 122 themselves, and no limitation is made here.

[0079] Furthermore, the first impeller 121 is arranged closer to the inlet 111 than the second impeller 122. The output shaft 131 of the power component 130 is relatively fixed to the second impeller 122, enabling the first impeller 121 and the second impeller 122 to rotate synchronously. By connecting the first impeller 121 and the second impeller 122 to each other or integrally forming them, the structure of the impeller group 120 is simpler and more compact, the volume of the fluid chamber 113 is smaller, and thus the structure of the pump body 100 is simple, the overall volume is small, the adaptability is strong, and the application is extensive.

[0080] Among them, the pump housing 110 includes a main housing 117 and a partition plate 118. The main housing 117 is provided with an inlet 111, a fluid chamber 113, and an outlet 112. The partition plate 118 is arranged on the inner wall of the main housing 117 and is located within the fluid chamber 113. The partition plate 118 is arranged corresponding to the connection part of the first impeller 121 and the second impeller 122, and the partition plate 118 divides the fluid chamber 113 into a first sub-chamber 1133 and a second sub-chamber 1134. The first impeller 121 is rotatably arranged within the first sub-chamber 1133, and the second impeller 122 is rotatably arranged within the second sub-chamber 1134.

[0081] In this embodiment, the impeller group 120 is an integral structure. Therefore, only one fluid chamber 113 needs to be opened in the main housing 117 to realize the installation of the impeller group 120. To improve the pumping effect of the pump body 100, improve the pumping effect of the first impeller 121 in the first working mode, and improve the pumping effect of the second impeller 122 in the second working mode, a partition plate 118 is arranged in the main housing 117. The partition plate 118 divides the fluid chamber 113 into a first sub-chamber 1133 and a second sub-chamber 1134, which is beneficial to form a volute curve on the outer periphery of the first impeller 121 and the second impeller 122 and improve the pumping efficiency of the first medium and the second medium.

[0082] Furthermore, the power component 130 is installed at one end of the main housing 117 facing away from the inlet 111. The power component 130 is fixedly connected to the main housing 117 by clamping. The output shaft 131 of the power component 130 extends into the fluid chamber 113 and is relatively fixed to the second impeller 122. The power component 130 is installed at one end of the main housing 117 facing away from the inlet 111, which is beneficial to limit the impeller group 120 within the fluid chamber 113.

[0083] In addition, for ease of manufacturing, the internal dimensions of the first sub-chamber 1133 and the second sub-chamber 1134 are similar. Due to the density difference between the first medium and the second medium, the size of the sub-chamber for outputting or pressurizing the higher-density medium should be relatively smaller. The pump housing 110 further includes a flow-limiting ring 119. The flow-limiting ring 119 is located within the second sub-chamber 1134 and is provided with an opening corresponding to the outlet 112 for the second medium to flow out. By providing the flow-limiting ring 119, the internal dimensions of the second sub-chamber 1134 can be changed to form a volute curve suitable for the higher-density medium, thereby improving the pumping efficiency. At this time, the density of the second medium is higher than that of the first medium.

[0084] In this embodiment, the pump body 100 may further be provided with structures such as a plugging member 140 and a heating member 150, etc. The setting principles and effects are the same as those in the corresponding above embodiments and will not be elaborated here.

[0085] Please continue to refer to Figure 9 , Figure 9 which is a schematic diagram of the frame structure of an embodiment of the cleaning device of the present application.

[0086] Another embodiment of the present application provides a cleaning device 200. The cleaning device 200 includes a box body 210 and a spraying system. The spraying system includes a cleaning pump 220, and the cleaning pump 220 employs the pump body 100 in any of the above embodiments. The pump body 100 is used to pump the second medium into the box body 210 in the cleaning mode; and pump the first medium into the box body 210 in the drying mode. The first medium is a gas and the second medium is a liquid. Among them, the cleaning mode of the cleaning device 200 corresponds to the second working mode of the pump body 100, and the drying mode of the cleaning device 200 corresponds to the first working mode of the pump body 100.

[0087] In a conventional cleaning device 200, the pump body 100 can only pump a liquid into the box body 210 in the cleaning mode, and the pump body 100 cannot pump a gas. Therefore, there is residual liquid inside the spraying system, providing a survival condition for bacteria and resulting in the generation of odors. However, the pump body 100 employed in the cleaning device 200 in the embodiment of the present application can not only be used to pump a liquid into the box body 210 in the cleaning mode; but also pump a gas into the box body 210 in the drying mode. Thus, the pump body 100 can continuously send the residual liquid inside the spraying system into the box body 210 and introduce the dry gas inside the box body 210 into the spraying system, thereby realizing the drying and sterilization inside the spraying system.

[0088] Specifically, the cleaning device 200 can be a dishwasher, a washer-dryer, an air washer, etc.

[0089] Please continue to refer to Figure 10 , Figure 10It is a schematic diagram of the frame structure of an embodiment of the cooking device of the present application.

[0090] Another embodiment of the present application provides a cooking device 300, which includes a cooking main body 310 and a cleaning system. The cleaning system includes a cleaning pump 320, and the cleaning pump 320 adopts the pump body 100 in any of the above embodiments. The pump body 100 is used to pump the second medium into the cooking main body 310 in the cleaning mode; and pump the first medium into the cooking main body 310 in the drying mode, the first medium is a gas, and the second medium is a liquid. Among them, the cleaning mode of the cooking device 300 corresponds to the second working mode of the pump body 100, and the drying mode of the cooking device 300 corresponds to the first working mode of the pump body 100.

[0091] In a conventional cooking device 300 with an automatic cleaning function, the pump body 100 can only pump a liquid into the cooking main body 310 for cleaning in the cleaning mode, and the pump body 100 cannot pump a gas. Therefore, the liquid remains in the cleaning system, providing a living condition for bacteria to survive, resulting in the generation of odors. However, the pump body 100 adopted in the cooking device 300 in the embodiment of the present application can not only be used to pump a liquid into the cooking main body 310 in the cleaning mode; but also pump a gas into the cooking main body 310 in the drying mode. Thus, the pump body 100 can continuously send the residual liquid inside the cleaning system into the cooking main body 310, and introduce the dry gas inside the cooking main body 310 into the cleaning system, thereby realizing the drying and sterilization inside the cleaning system.

[0092] Specifically, the cooking device 300 can be an automatic stir-frying machine with a cleaning function, a steam roasting integrated machine, or other devices.

[0093] It should be noted that terms such as "horizontal" and "vertical" do not mean that the components are absolutely horizontal or vertical, but can be slightly inclined; terms such as "parallel" and "perpendicular" do not mean that the fittings are absolutely parallel or perpendicular to each other, but can form a certain angular deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In addition, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed during use. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application.

[0094] It is understood that the meaning of "a plurality of" in this text is at least two, such as two, three, etc., unless there are specific restrictive descriptions. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices. The term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0095] The above description is only the implementation mode of this application, and does not limit the patent scope of this application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of this application.

Claims

1. A pump body, characterized in that, Comprising: A pump housing provided with an inlet, an outlet, and a fluid chamber communicating with the inlet and the outlet respectively; An impeller group rotatably arranged in the fluid chamber; A power member connected to the pump housing for driving the impeller group to rotate, wherein the power member has a first working mode and a second working mode. In the first working mode, the power member drives the impeller group to rotate to suck a first medium into the fluid chamber through the inlet and then discharge it through the outlet. In the second working mode, the power member drives the impeller group to rotate to suck a second medium into the fluid chamber through the inlet and then discharge it through the outlet, where the first medium and the second medium are fluids with different densities.

2. The pump body according to claim 1, characterized in that, The fluid chamber includes a first chamber and a second chamber communicating with each other. The impeller group includes a first impeller and a second impeller. The first impeller is rotatably arranged in the first chamber, and the second impeller is rotatably arranged in the second chamber. In the first working mode, the power member drives the first impeller to rotate to suck the first medium into the first chamber through the inlet and then discharge it through the outlet. In the second working mode, the power member drives the second impeller to rotate to suck the second medium into the second chamber through the inlet and then discharge it through the outlet.

3. The pump body according to claim 2, wherein In the first working mode, the power member drives the first impeller to rotate at a first rotational speed to suck the first medium into the first chamber through the inlet and then discharge it through the outlet; In the second working mode, the power member drives the second impeller to rotate at a second rotational speed to suck the second medium into the second chamber through the inlet and then discharge it through the outlet, and the first rotational speed is greater than the second rotational speed.

4. The pump body according to claim 2, characterized in that, The power member has an output shaft connected to the first impeller and the second impeller. The output shaft is arranged to rotate in a first rotational direction in the first working mode and rotate in a second rotational direction in the second working mode, and the second rotational direction is opposite to the first rotational direction.

5. The pump body according to claim 2, characterized in that, The rotating shafts of the first impeller and the second impeller are coaxially arranged and on the same side of the power member.

6. The pump body according to claim 4, characterized in that, The second chamber communicates with the inlet through the first chamber.

7. The pump body according to claim 6, characterized in that, In the first working mode, the power member only drives the first impeller to rotate or drives the first impeller and the second impeller to rotate simultaneously. In the second working mode, the power member only drives the second impeller to rotate.

8. The pump body according to claim 7, characterized in that, The output shaft is connected to the first impeller through a first one-way bearing for driving the first impeller to rotate in the first rotational direction; The output shaft is connected to the second impeller through a second one-way bearing for driving the second impeller to rotate in the second rotational direction, or the output shaft is relatively fixed to the second impeller for driving the second impeller to rotate in the first rotational direction and the second rotational direction respectively.

9. The pump body according to any one of claims 2 - 8, characterized in that, The pump housing is further provided with a first flow channel and a second flow channel. The first flow channel communicates with the first chamber, the second flow channel communicates with the second chamber, and the first flow channel and the second flow channel communicate with the outlet after confluence.

10. The pump body according to claim 9, characterized in that, The first flow channel is provided with a blocking member. In the first working mode, the blocking member opens the first flow channel, and in the second working mode, the blocking member blocks the first flow channel.

11. The pump body according to claim 10, characterized in that, The blocking member includes a wind chamber cover which is rotatably arranged in the first flow channel. A stepped portion is formed in the pump housing. In the second working mode, the second medium can push the wind chamber cover to rotate until it abuts against the stepped portion, and the wind chamber cover blocks the first flow channel.

12. The pump body according to claim 6, characterized in that, The density of the first medium is less than that of the second medium.

13. The pump body according to claim 5, characterized in that, The second chamber is closer to the power member than the first chamber, and the density of the second medium is greater than that of the first medium.

14. The pump body according to claim 2, wherein, The pump body further includes a heating member which is arranged in the first chamber and wound around the outer periphery of the first impeller.

15. The pump body according to claim 9, characterized in that, The pump housing includes a first housing, a second housing and a chassis. The first housing is provided with the inlet, the first chamber and an installation cavity. The second housing is installed in the installation cavity. The second housing is provided with the second chamber. The chassis covers one end of the second housing facing away from the first chamber. The first flow channel is formed on the circumferential side of the first housing corresponding to the first chamber, and the second flow channel is formed on the circumferential side of the second housing corresponding to the second chamber. The second housing has an opening for communicating the second chamber with the second flow channel, and the first housing further forms the outlet.

16. The pump body according to claim 15, characterized in that, The power member is installed at one end of the chassis facing away from the inlet, and the power member is fixedly connected to the first housing by clamping. The output shaft of the power member passes through the chassis and extends into the second chamber and the first chamber.

17. The pump body according to claim 1, characterized in that, The impeller group includes a first impeller and a second impeller arranged coaxially. The first impeller and the second impeller are connected to each other or integrally formed. In the first working mode, the power member drives the first impeller and the second impeller to rotate at a first speed to suck the first medium into the fluid chamber through the inlet and then discharge it through the outlet. In the second working mode, the power member drives the first impeller and the second impeller to rotate at a second speed to suck the second medium into the fluid chamber through the inlet and then discharge it through the outlet. The first speed is greater than the second speed.

18. The pump body according to claim 17, characterized in that, The pump housing includes a main housing which is provided with the inlet, the fluid chamber and the outlet. The power member is installed on one side of the main housing away from the inlet.

19. A cleaning device, characterized in that, It includes a box body and a spraying system. The spraying system includes a cleaning pump which adopts the pump body described in any one of the above claims 1-18. The pump body is used to pump the second medium into the box body in the cleaning mode and pump the first medium into the box body in the drying mode. The first medium is a gas and the second medium is a liquid.

20. A cooking device, characterized in that, It includes a cooking main body and a cleaning system. The cleaning system includes a cleaning pump. The cleaning pump adopts the pump body described in any one of the above claims 1-18. The pump body is used to pump the second medium into the cooking main body in the cleaning mode and pump the first medium into the cooking main body in the drying mode. The first medium is a gas and the second medium is a liquid.

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