Filter assembly and water pump

Abstract

The filter assembly is used for filtering the water inlet end of the water pump, the filter assembly comprises a shell and a filter screen, the shell covers a water inlet of a pump body of the water pump, and water passing holes are evenly distributed in the end face, away from the pump body, of the shell; a limiting groove is formed in the inner side wall of the shell; the filter screen is arranged in the shell and is arranged between the water passing hole and the water inlet of the pump body; a lock catch is arranged on the side wall of the filter screen and comprises an elastic arm and a lock plate, the lock plate is connected with the side wall of the filter screen through the elastic arm, and the lock plate corresponds to the limiting groove; the locking plate penetrates into the limiting groove under the elastic action of the elastic arm, so that the relative position between the filter screen and the shell can be limited; according to the filter assembly provided by the utility model, the filter screen is arranged on the outer side of the water inlet end of the water pump by utilizing the lock catch for limiting, water flow entering the water pump is filtered, and meanwhile, the lock catch is clamped in the limiting groove, so that the filter screen can be conveniently replaced or cleaned after being detached from the shell subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a filter component and a water pump. Background Art

[0002] For existing water pumps, the motor of the water pump drives the impeller in the pump body to rotate, so that water enters the pump body through the water inlet of the water pump, thereby realizing the function of the water pump to pump water. However, at the same time, there is a problem that the pumped water often contains impurities such as weeds and sand, which will enter the pump body along with the water and entangle the impeller, thereby greatly affecting the working performance of the water pump, and in serious cases, even burning the motor or blocking the water pump.

[0003] In order to prevent impurities from entering the water pump and causing blockage, the water pumps on the market are now designed with a groove on the outer shell and a sponge placed in the groove to filter out some hair and dirt. However, the sponge holes are large and cannot really filter out some very fine dirt particles, causing these fine particles to enter the pump body, affecting the pump body, generating noise, and seriously affecting the service life of the water pump. Utility Model Content

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies in the related art. The present invention provides a filter assembly and a water pump.

[0005] The utility model provides the following technical solutions:

[0006] A filter assembly, used for filtering the water inlet end of a water pump, comprises:

[0007] The outer shell is provided at the water inlet of the water pump body, and the end surface of the outer shell away from the pump body is evenly provided with water holes; the inner side wall of the outer shell is provided with a limit groove;

[0008] A filter screen is installed in the housing, and the filter screen is arranged between the water hole and the water inlet of the pump body; a lock buckle is arranged on the side wall of the filter screen, and the lock buckle includes an elastic arm and a locking plate, and the locking plate is connected to the side wall of the filter screen through the elastic arm, and the locking plate is arranged corresponding to the limiting groove;

[0009] The locking piece penetrates into the limiting groove under the elastic force of the elastic arm, so as to limit the relative position between the filter screen and the housing.

[0010] As a further improvement of the above technical solution, the lock buckles are symmetrically provided in two groups relative to the filter screen.

[0011] As a further improvement of the above technical solution, the elastic arm and the locking plate are made of integrally formed hard rubber, and the thickness of the elastic arm is smaller than the thickness of the locking plate.

[0012] As a further improvement of the above technical solution, a support frame is provided on the peripheral side of the filter screen, and a plurality of mutually connected support ribs are provided inside the support frame; the lock buckle is installed on the end surface of the support frame away from the filter screen.

[0013] As a further improvement of the above technical solution, a disassembly and assembly platform is provided on the support ribs.

[0014] As a further improvement of the above technical solution, the plurality of support ribs in the support frame are in a cross shape, and the disassembly and assembly platform is arranged at the intersection center of each of the support ribs.

[0015] As a further improvement of the above technical solution, anti-slip grooves are provided on the peripheral side of the disassembly and assembly platform.

[0016] As a further improvement of the above technical solution, a plurality of filter screens are provided.

[0017] As a further improvement of the above technical solution, the filter hole diameters of the filter screens gradually decrease from the position farthest from the pump body to the position close to the pump body.

[0018] As a further improvement of the above technical solution, an avoidance groove for avoiding the disassembly and assembly platform on the adjacent filter screen is provided on the end surface of the filter screen away from the pump body.

[0019] As a further improvement of the above technical solution, an open guide groove is provided on the inner side wall of the shell, and the limiting grooves are all opened in the open guide groove.

[0020] As a further improvement of the above technical solution, the end of the housing where the water hole is located is an arc-shaped portion protruding in a direction away from the pump body.

[0021] As a further improvement of the above technical solution, a support platform is provided on the end surface of the arc portion close to the filter screen.

[0022] As a further improvement of the above technical solution, a docking boss is provided on the inner wall of the outer shell, and a mounting groove corresponding to the docking boss is provided on the side wall of the pump body. The docking boss is inserted into the mounting groove and is used to limit the relative position of the outer shell and the pump body.

[0023] As a further improvement of the above technical solution, the docking boss is made of rubber material.

[0024] As a further improvement of the above technical solution, the docking boss is interference fit when it is inserted into the installation groove.

[0025] As a further improvement of the above technical solution, a notch groove is provided on the end surface side wall of the shell close to the pump body.

[0026] The utility model also provides a water pump, comprising the filter assembly as described in any one of the above.

[0027] Compared with the related art, the beneficial effects of the utility model are:

[0028] The filter assembly provided by the utility model, when in use, first installs the filter screen at the corresponding position in the shell, so that the locking piece on the filter screen is inserted into the limit groove under the elastic force of the elastic arm, thereby completing the limitation of the relative position between the filter screen and the shell, and then sets the shell cover at the water inlet of the water pump body to complete the installation. After starting the water pump, the water pump can be used to pump water. During this period, the water flows through the water holes on the shell and the filter holes of the filter screen in turn and finally enters the water inlet of the water pump and is discharged from the water outlet. The water holes can isolate large-diameter impurities from the outside, and the filter screen can isolate fine dirty particles from the water pump, which can avoid problems such as clogging of the water pump and generating noise, and extend the service life of the water pump.

[0029] When the water pump needs to be cleaned and replaced after working for a long time, the outer shell is first removed from the pump body, and then the filter is pulled outward or pressed to make the filter relatively displaced with respect to the outer shell, so that the locking piece can squeeze the elastic arm and escape from the limit groove, and then the filter is pulled outward, and finally the filter is taken out of the outer shell, and then the filter and the outer shell are cleaned, which is easy to operate and saves time.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic structural diagram of a filter assembly in one embodiment of the utility model from one perspective is shown;

[0033] Figure 2 An exploded schematic diagram of a filter assembly in one embodiment of the utility model is shown;

[0034] Figure 3 A cross-sectional view showing the cooperation between the housing and the filter screen in one embodiment of the utility model from one perspective;

[0035] Figure 4 A schematic diagram of the structure of a housing in one embodiment of the utility model from one perspective is shown;

[0036] Figure 5 A schematic structural diagram of a filter screen in one embodiment of the utility model is shown from one viewing angle.

[0037] Description of main component symbols:

[0038] 100-pump body; 110-water outlet; 120-water inlet; 130-installation groove; 200-housing; 210-limiting groove; 220-opening guide groove; 230-arc-shaped portion; 231-water hole; 232-support platform; 240-docking boss; 250-notch groove; 310-filter screen; 320-lock buckle; 321-elastic arm; 322-locking plate; 330-support frame; 331-support rib; 332-disassembly and assembly platform. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] Example 1

[0045] Combination Figure 1 , Figure 3 As shown, this embodiment provides a filter assembly for filtering the water inlet end of a water pump. The filter assembly includes a housing 200 and a filter screen 310 .

[0046] The shell 200 is covered at the water inlet 120 of the water pump body 100, and the end surface of the shell 200 away from the pump body 100 is evenly distributed with water holes 231; the inner side wall of the shell 200 is provided with a limiting groove 210; the filter screen 310 is installed in the shell 200, and the filter screen 310 is arranged between the water holes 231 and the water inlet 120 of the pump body 100; a lock buckle 320 is provided on the side wall of the filter screen 310, and the lock buckle 320 includes an elastic arm 321 and a locking plate 322, and the locking plate 322 is connected to the side wall of the filter screen 310 through the elastic arm 321, and the locking plate 322 is arranged corresponding to the limiting groove 210; the locking plate 322 penetrates into the limiting groove 210 under the elastic force of the elastic arm 321, and can limit the relative position between the filter screen 310 and the shell 200.

[0047] When using the filter assembly provided in this embodiment, the filter 310 is first installed at the corresponding position in the shell 200, so that the locking piece 322 on the filter 310 passes into the limiting groove 210 under the elastic force of the elastic arm 321, thereby completing the limitation of the relative position between the filter 310 and the shell 200, and then the shell 200 is covered at the water inlet 120 of the water pump body 100 to complete the installation.

[0048] After the filter assembly is installed on the water pump, the water pump can be started to pump water. During this period, water flows through the water holes 231 on the outer shell 200 and the filter holes of the filter screen 310 in sequence and finally enters the water inlet 120 of the water pump and is discharged from the water outlet. The water holes 231 can isolate large-diameter impurities, and the filter screen 310 can isolate fine dirty particles outside the water pump, which can avoid problems such as clogging of the water pump and noise generation, thereby extending the service life of the water pump.

[0049] When the water pump has been working for a long time, a lot of weeds, gravel and other impurities will accumulate on the filter, which is not conducive to the normal pumping operation of the water pump. The filter 310 needs to be cleaned and replaced. When replacing the filter 310, the outer shell 200 is first removed from the pump body 100, and then the filter 310 is pulled outward or pressed to make the filter 310 relatively displaced relative to the outer shell 200, so that the locking piece 322 can squeeze the elastic arm 321 and disengage from the limiting groove 210, and then the filter 310 is pulled outward, and finally the filter 310 is taken out from the outer shell 200, and then the filter 310 and the outer shell 200 can be cleaned, which is easy to operate and saves time.

[0050] In one embodiment, two groups of the lock buckles 320 are symmetrically arranged relative to the filter 310. By stacking the two groups of the lock buckles 320, the restriction on the relative position of the filter 310 and the outer shell 200 can be more stable and reliable. Of course, in other embodiments of the present invention, three groups, four groups or other numbers of lock holes can be arranged on the peripheral side of the filter 310 to ensure the reliability of the filter 310 and the outer shell 200.

[0051] In one embodiment, the elastic arm 321 and the locking piece 322 are made of one-piece hard rubber, and the rubber has excellent corrosion resistance, tensile resistance, and high temperature resistance. Among them, the hard rubber is not easy to deform. By setting the thickness of the elastic arm 321 to be smaller than the thickness of the locking piece 322, the elastic arm 321 is more likely to undergo elastic deformation, thereby pushing the locking piece 322 into the limiting groove 210, and the one-piece elastic arm 321 and the locking piece 322 are easier to process, which can effectively reduce the production cost; of course, in other embodiments of the utility model, the elastic arm 321 and the locking piece 322 can be set separately and connected and installed by clamping, bonding, etc. For example, the elastic arm 321 can be connected to the rigid locking piece 322 by a metal spring or a spring.

[0052] In one embodiment, the locking piece 322 is cylindrical in shape, and the cylindrical side of the locking piece 322 is connected to the elastic arm 321 . This shape facilitates the locking piece 322 to enter into and escape from the limiting groove 210 .

[0053] like Figure 5 As shown, in one embodiment, a support frame 330 is provided on the peripheral side of the filter 310, and a plurality of interconnected support ribs 331 are provided inside the support frame 330; the lock buckle 320 is installed on the end face of the support frame 330 away from the filter 310. By arranging the support frame 330 and the support ribs 331 on the peripheral side of the filter 310, the filter 310 can be effectively prevented from being deformed when impacted by water flow, thereby improving the reliability of the filter 310 in filtering water flow; of course, in other embodiments of the present invention, the overall rigidity strength of the filter 310 can be improved to improve the anti-deformation ability of the filter 310.

[0054] In one embodiment, a disassembly and assembly platform 332 is provided on the support rib 331. The staff can hold the disassembly and assembly platform 332 to pull the filter 310 out of the shell 200 or press the filter 310 to make a relative displacement with respect to the shell 200, so that the locking piece 322 can squeeze the elastic arm 321 and escape from the limiting groove 210, and then pull the filter 310 outward to finally take the filter 310 out of the shell 200. The provision of the disassembly and assembly platform 332 can save the staff more effort and improve the efficiency during the process of disassembling and assembling the filter 310. Exemplarily, the disassembly and assembly platform 332 is cylindrical for easy processing. Of course, in other embodiments of the utility model, other structures such as handles can also be provided on the filter 310 to facilitate the staff to disassemble, assemble and replace the filter 310.

[0055] In one embodiment, the plurality of support ribs 331 in the support frame 330 are in a cross shape, and the disassembly and assembly platform 332 is disposed at the intersection center of each of the support ribs 331, so that when the staff holds the disassembly and assembly platform 332 to pull or press the filter 310, the entire filter 310 is subjected to more uniform force, thereby preventing the filter 310 from being damaged due to uneven force; of course, in other embodiments of the utility model, the support ribs 331 can also be set to other shapes of connection methods.

[0056] In one embodiment, the circumferential side of the disassembly and assembly platform 332 is provided with anti-slip grooves to increase the friction between the hands of the staff and the outer surface of the disassembly and assembly platform 332 when the staff holds the disassembly and assembly platform 332, thereby preventing the hands of the staff from loosening when disassembling and assembling the filter 310, thereby improving the safety of use of this embodiment; of course, in other embodiments of the present invention, the friction of the outer surface of the disassembly and assembly platform 332 can also be increased by installing a rubber sleeve or spraying an anti-slip coating on the outside of the disassembly and assembly platform 332.

[0057] like Figure 2 As shown, in one embodiment, a plurality of the filter screens 310 are provided. By providing a plurality of the filter screens 310 to filter the water flow multiple times, the content of impurities in the water flow can be further reduced, which can effectively reduce the workload of the water pump and extend the service life of the water pump.

[0058] In one embodiment, the pore sizes of the filter holes of each of the filters 310 gradually decrease from the position farthest from the pump body 100 to the position close to the pump body 100. When the water flows through each of the filters 310, impurities of different diameters are filtered out in layers in turn, which can effectively avoid the blockage of the filter 310, thereby extending the working time of this embodiment; of course, in other embodiments of the present invention, each of the filters 310 can also use a filter 310 of the same specification to repeatedly filter impurities of the same diameter in the water flow, and the water quality of the filtered water meets the requirements.

[0059] In one embodiment, an avoidance groove is provided on the end surface of the filter screen 310 away from the pump body 100 for avoiding the disassembly and assembly platform 332 on the adjacent filter screen 310, so that the installation positions of the adjacent filter screens 310 are closer, saving space.

[0060] like Figure 4As shown, in one embodiment, an open guide groove 220 is provided on the inner side wall of the shell 200, and the limiting grooves 210 are all opened in the open guide groove 220. When the filter 310 is installed in the shell 200, the locking plate 322 can move in the open guide groove 220 until the locking plate 322 moves to the limiting groove 210 and enters the limiting groove 210 under the elastic force of the elastic arm 321, which can effectively prevent the locking plate 322 from being offset from the limiting groove 210, making the installation process easier.

[0061] In one embodiment, the end of the shell 200 where the water hole 231 is located is an arc-shaped portion 230 protruding away from the pump body 100, which can effectively increase the water inlet surface on the shell 200 and improve the water flow efficiency of the shell 200; of course, in other embodiments of the present invention, the end of the shell 200 where the water hole 231 is located can also be set to other shapes.

[0062] In one embodiment, a support platform 232 is provided on the end surface of the arc portion 230 close to the filter 310 to support the filter 310 closest to the arc portion 230 to avoid direct contact between the arc portion 230 and the filter 310, thereby reducing the filtering effect of the filter 310.

[0063] In one embodiment, a docking boss 240 is provided on the inner wall of the outer shell 200, and a mounting groove 130 corresponding to the docking boss 240 is provided on the side wall of the pump body 100. The docking boss 240 is inserted into the mounting groove 130 and is used to limit the relative position of the outer shell 200 and the pump body 100. Through the cooperation between the docking boss 240 and the mounting groove 130, the coordinated installation of the outer shell 200 and the pump body 100 is easier to operate.

[0064] In one embodiment, the docking boss 240 is made of rubber material, so that when the shell 200 is mounted on the pump body 100, the docking boss 240 is squeezed by the outer surface of the pump body 100 and deformed to reduce the squeezing pressure on the shell 200 and avoid cracking of the shell 200.

[0065] In one embodiment, the docking boss 240 is inserted into the installation groove 130 to form an interference fit. After the docking boss 240 falls into the installation groove 130, the fit between the housing 200 and the pump body 100 is tightened to avoid looseness.

[0066] In one embodiment, a notch groove 250 is provided on the side wall of the end face of the outer shell 200 close to the pump body 100. When the outer shell 200 is mounted on the pump body 100, the extrusion force transmitted to the outer shell 200 by the pump body 100 through the docking boss 240 can be released through the notch groove 250, thereby effectively preventing the outer shell 200 from being damaged.

[0067] Example 2

[0068] The utility model also provides a water pump, which can be divided into various types such as centrifugal pumps, axial flow pipeline pumps, double-acting reciprocating pumps, etc. according to different working principles, including the filter component described in Example 1, and the filter component is installed on the pump body 100 of the water pump. The water pump has all the beneficial effects of the filter component, which will not be described in detail here.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0070] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A filter assembly for filtering the water inlet end of a water pump, characterized in that: include: The outer shell is provided at the water inlet of the water pump body, and the end surface of the outer shell away from the pump body is evenly provided with water holes; the inner side wall of the outer shell is provided with a limit groove; A filter screen is installed in the housing, and the filter screen is arranged between the water hole and the water inlet of the pump body; a lock buckle is arranged on the side wall of the filter screen, and the lock buckle includes an elastic arm and a locking plate, and the locking plate is connected to the side wall of the filter screen through the elastic arm, and the locking plate is arranged corresponding to the limiting groove; The locking piece penetrates into the limiting groove under the elastic force of the elastic arm, so as to limit the relative position between the filter screen and the housing.

2. The filter assembly according to claim 1, characterized in that: A support frame is provided on the peripheral side of the filter screen, and a plurality of mutually connected support ribs are provided inside the support frame; the lock buckle is installed on the end surface of the support frame away from the filter screen.

3. The filter assembly according to claim 2, characterized in that: A disassembly and assembly platform is arranged on the supporting ribs.

4. The filter assembly according to claim 1, characterized in that: The filter screen is provided in plurality.

5. The filter assembly according to claim 4, characterized in that: An opening guide groove is arranged on the inner side wall of the shell, and the limiting grooves are all arranged in the opening guide groove.

6. The filter assembly according to claim 1, characterized in that: The end of the shell where the water hole is located is an arc-shaped portion protruding in a direction away from the pump body.

7. The filter assembly according to claim 6, characterized in that A support platform is provided on the end surface of the arc-shaped portion close to the filter screen.

8. The filter assembly according to claim 1, characterized in that: A docking boss is provided on the inner wall of the shell, and a mounting groove corresponding to the docking boss is provided on the side wall of the pump body. The docking boss is inserted into the mounting groove and is used to limit the relative position of the shell and the pump body.

9. The filter assembly according to claim 8, characterized in that: A notch groove is provided on the end surface side wall of the shell close to the pump body.

10. A water pump, characterized in that: Comprising the filter assembly according to any one of claims 1 to 9.

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