Pre-filter and water system

Abstract

The utility model discloses a prefilter and water consuming system relates to prefilter technical field, wherein prefilter includes filter flask, valve head, first fastener and second fastener, filter flask is equipped with filter cavity and first through-hole, the valve head is equipped with water inlet, water outlet and second through-hole, the second through-hole is equipped with water inlet, water outlet and second through-hole. The water inlet and the water outlet are communicated through the water filtering cavity, the first fastener is riveted to the filter bottle or the valve head, and the first fastener and the second fastener are matched with the first through hole and the second through hole, so that the filter bottle and the valve head are fixedly connected; according to the technical scheme provided by the utility model, the valve head and the filter bottle are reliably assembled, so that the working performance of the pre-filter is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-filters, in particular to a pre-filter and a water use system. Background Art

[0002] During the production process of the pre-filter, the valve head and filter bottle need to be reliably assembled to ensure the working performance of the pre-filter. Utility Model Content

[0003] The main purpose of the utility model is to provide a pre-filter and a water system, aiming to reliably assemble the valve head and the filter bottle to ensure the working performance of the pre-filter.

[0004] To achieve the above-mentioned purpose, the pre-filter proposed by the present invention comprises:

[0005] A filter bottle, wherein the filter bottle is provided with a water filtering cavity and a first through hole;

[0006] A valve head, wherein a water inlet, a water outlet and a second through hole are provided on the valve head, and the water inlet and the water outlet are connected through the water filter cavity; and

[0007] A first fastener and a second fastener, wherein the first fastener is riveted to the filter bottle or the valve head, and the first fastener and the second fastener cooperate with the first through hole and the second through hole to fix the filter bottle and the valve head in connection.

[0008] In one embodiment, one of the first fastening member and the second fastening member is a bolt, and the other is a nut.

[0009] In one embodiment, the nut is riveted to the filter bottle and is disposed corresponding to the first through hole.

[0010] In one embodiment, the nut is riveted into the first through hole.

[0011] In one embodiment, the diameters of the first through hole and the second through hole are both 5 mm to 7 mm.

[0012] In one embodiment, a first flange is provided on the filter bottle, a second flange is provided on the valve head, the first through hole and the second through hole are respectively provided on the first flange and the second flange, and the first flange and the second flange are in contact with each other.

[0013] In one embodiment, the first flange and the second flange are both polygonal or quasi-polygonal in shape, and a plurality of the first through holes and the second through holes are provided, with one first through hole corresponding to one second through hole, and the plurality of the first through holes and the plurality of the second through holes are respectively provided at the corners of the first flange and the second flange.

[0014] In one embodiment, a plurality of reinforcing protrusions are provided on a side of the first flange facing away from the valve head, the reinforcing protrusions are in contact with the outer peripheral surface of the filter bottle, and the plurality of reinforcing protrusions are respectively located at corners of the first flange.

[0015] In one embodiment, the second fastener is a nut, the first through hole passes through the first flange and the reinforcing protrusion at the same time, the nut is riveted to the reinforcing protrusion and is located in the first through hole.

[0016] The utility model also provides a water use system, comprising the pre-filter as described above.

[0017] The pre-filter in the technical solution of the present utility model includes a filter bottle, a valve head, a first fastener and a second fastener. The filter bottle is provided with a water filter chamber and a first through hole. The valve head is provided with a water inlet, a water outlet and a second through hole. The water inlet and the water outlet are connected through the water filter chamber. The first fastener is riveted to the filter bottle or the valve head. The first fastener and the second fastener cooperate with the first through hole and the second through hole to fix the filter bottle and the valve head in connection. The filter bottle and the valve head are thereby reliably assembled by the first fastener and the second fastener, thereby ensuring the working performance of the pre-filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 A schematic structural diagram of a pre-filter provided by the present invention from one perspective;

[0020] Figure 2 This is a structural diagram of the pre-filter provided by the utility model from another perspective;

[0021] Figure 3 This is a structural schematic diagram of a filter bottle in the pre-filter provided by the utility model from one perspective;

[0022] Figure 4This is a structural schematic diagram of the filter bottle in the pre-filter provided by the utility model from another perspective;

[0023] Figure 5 This is a structural schematic diagram of an embodiment of a valve head in a pre-filter provided by the present invention.

[0024] Description of Figure Numbers:

[0025] 10. Filter bottle; 101. Water filter chamber; 11. First flange; 111. First through hole; 14. Reinforcement protrusion; 20. Valve head; 201. Water inlet; 202. Water outlet; 21. Second flange; 211. Second through hole; 31. Bolt; 32. Nut.

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] Water systems, such as whole-house water purification systems, typically feature a pre-filter to filter out large particles from tap water. This not only ensures water safety for residents but also extends the lifespan of appliances, prevents clogged household water pipes, and improves residents' health. The pre-filter is the first coarse filtration device in a whole-house water purification system. It typically contains a stainless steel filter, a physical filter designed to intercept particles larger than 40 microns, ensuring back-end water safety.

[0031] Some pre-filters on the market usually have a flushing function, that is, they can be cleaned regularly to discharge the large particles that were previously intercepted, thereby increasing the service life of the pre-filter.

[0032] See also Figures 1 to 5 In one embodiment of the present invention, the pre-filter includes a filter bottle 10 and a valve head 20 connected to the filter bottle 10, the filter bottle 10 has a water filter chamber 101, the valve head 20 has a water inlet 201 and a water outlet 202 connected to the water filter chamber 101, the water inlet 201 is connected to the water supply end, and the water outlet 202 is connected to the water use end.

[0033] It should be noted that the water supply end can be a tap, a water tower or well water, and the water use end can be a faucet, a shower or a drinking water outlet. This application does not make specific restrictions on this.

[0034] The utility model provides a pre-filter, comprising:

[0035] A filter bottle 10 is provided with a water filtering cavity 101 and a first through hole 111;

[0036] A valve head 20 , wherein the valve head 20 is provided with a water inlet 201 , a water outlet 202 and a second through hole 211 , wherein the water inlet 201 and the water outlet 202 are connected through the water filter chamber 101 ; and

[0037] A first fastener and a second fastener, wherein the first fastener is riveted to the filter bottle 10 or the valve head 20, and the first fastener and the second fastener cooperate with the first through hole 111 and the second through hole 211 to fix the filter bottle 10 and the valve head 20 in connection.

[0038] The pre-filter in the technical solution of the present invention includes a filter bottle 10, a valve head 20, a first fastener and a second fastener. The filter bottle 10 is provided with a water filter chamber 101 and a first through hole 111. The valve head 20 is provided with a water inlet 201, a water outlet 202 and a second through hole 211. The water inlet 201 and the water outlet 202 are connected through the water filter chamber. The first fastener is riveted to the filter bottle 10 or the valve head 20. The first fastener and the second fastener cooperate with the first through hole 111 and the second through hole 211 to fix the filter bottle 10 and the valve head 20 in connection. The first fastener and the second fastener thereby realize reliable assembly of the filter bottle 10 and the valve head 20, thereby ensuring the working performance of the pre-filter.

[0039] The existing prefilter valve head 20 and filter bottle 10 are primarily connected using a threaded connection. This connection requires specialized fixtures for assembly, requires checking that the valve head 20 and filter bottle 10 are properly screwed into place, and imposes strict torque control requirements. Consequently, this connection increases the difficulty of prefilter assembly and increases the material cost of the valve head 20.

[0040] Therefore, in one embodiment, one of the first fastener and the second fastener is a bolt 31, and the other is a nut 32. The bolt 31 passes through the first through-hole 111 and the second through-hole 211 and then connects with the nut 32 to secure the filter bottle 10 to the valve head 20. Compared to the prior art method of using a fixture to rotate the valve head 20, the technical solution of the present application only requires a common tool such as a wrench to achieve the installation and fixation of the valve head 20 and the filter bottle 10, thereby simplifying the installation process of the valve head 20 and the filter bottle 10 and improving the installation efficiency of the pre-filter. Furthermore, the performance is stable and reliable, and the riveting method is stable and reliable, with low cost, thereby reducing the production cost of the pre-filter.

[0041] Furthermore, it can be understood that since one of the bolt 31 or the nut 32 is riveted to the filter bottle 10 or the valve head 20, the hole walls of the first through hole 111 and the second through hole 211 are arc surfaces, that is, no threaded structure is set on the first through hole 111 and the second through hole 211. At this time, the production cost of the first through hole 111 and the second through hole 211 is relatively low, and it is also convenient for the bolt 31 to be directly inserted into the first through hole 111.

[0042] In one embodiment, the nut 32 is riveted to the filter bottle 10 and positioned corresponding to the first through-hole 111. By riveting the nut 32 to the filter bottle 10, installation requires only aligning the first through-hole 111 with the second through-hole 211, inserting the filter bottle 10 into the first and second through-holes 111, and then locking the nut 32 together. This improves installation efficiency between the filter bottle 10 and the valve head 20. Of course, in another embodiment, the nut 32 can also be riveted to the valve head 20 and positioned corresponding to the second through-hole 211.

[0043] In one embodiment, the nut 32 is riveted into the first through-hole 111. By riveting the nut 32 into the first through-hole 111, the nut 32 is prevented from protruding directly outside the filter bottle 10, thereby reducing the risk of collisions with the nut 32 during transportation or installation, thereby improving the stability and reliability of the installation between the nut 32 and the filter bottle 10. Of course, in other embodiments, the nut 32 may be partially riveted into the first through-hole 111, with part protruding outside the filter bottle 10.

[0044] In another embodiment, the bolt 31 is riveted into the second through-hole 211. By riveting the nut 32 into the second through-hole 211, the nut 32 is prevented from protruding directly from the valve head 20, thereby reducing the risk of collision with the nut 32 during transportation or installation, thereby improving the stability and reliability of the installation between the nut 32 and the valve head 20. Of course, in other embodiments, the nut 32 can also be partially riveted into the second through-hole 211, with part of it protruding from the valve head 20.

[0045] In one embodiment, the diameters of the first through hole 111 and the second through hole 211 are both 5 mm to 7 mm. That is, the diameters of the first through hole 111 and the second through hole are both greater than or equal to 5 mm and less than or equal to 7 mm. First through holes 111 with a diameter range of 5 mm to 7 mm are widely used in various fields, such as machinery manufacturing, equipment installation, building construction, furniture assembly, automobile manufacturing, and electronic equipment. Therefore, a variety of bolts 31 with corresponding diameters are available for selection.

[0046] Furthermore, the shortest distance s between the first through hole 111 and the outer circumference of the filter bottle 10 is 4 mm ≤ s ≤ 7 mm. This allows for ample space for the wrench to be used when installing the nut 32, thereby improving installation and removal efficiency and enhancing the user experience.

[0047] In one embodiment, the filter bottle 10 is provided with a first flange 11, and the valve head 20 is provided with a second flange 21. The first through-hole 111 and the second through-hole 211 are respectively provided in the first flange 11 and the second flange 21. The first flange 11 and the second flange 21 are in close contact with each other. The addition of the first flange 11 and the second flange 21, in conjunction with the bolt 31 and the nut 32, increases the contact area between the valve head 20 and the filter bottle 10, thereby reducing the possibility of shaking between the valve head 20 and the filter bottle 10. This reduces loosening between the bolt 31 and the nut 32 caused by vibration or shaking between the valve head 20 and the filter bottle 10, thereby improving the connection strength between the valve head 20 and the filter bottle 10. Furthermore, the close contact between the first flange 11 and the second flange 21 also enhances the airtightness between the valve head 20 and the filter bottle 10. Of course, in other embodiments, other positions may also abut against each other to achieve the splicing of the filter bottle 10 and the valve head 20. For example, in an embodiment where the first flange 11 and the second flange 21 are not provided, the connecting pipe mouth of the valve head 20 and the bottle mouth edge of the filter bottle 10 abut against each other.

[0048] In one embodiment, the first flange 11 and the second flange 21 are both polygonal or quasi-polygonal in shape. Multiple first through holes 111 and multiple second through holes 211 are provided, with one first through hole 111 corresponding to one second through hole 211. The multiple first through holes 111 and multiple second through holes 211 are located at the corners of the first flange 11 and the second flange 21, respectively. As can be appreciated, the corners of the first and second flanges 11 and 21 offer ample free space. Therefore, positioning the first through holes 111 at these corners facilitates the manufacture of the pre-filter. The ample free space also facilitates the installation and mating of the bolts 31 and nuts 32, thereby improving the efficiency of assembly between the valve head 20 and the filter bottle 10. Of course, in other embodiments, only the first flange 11 may be disposed around the opening of the water filtration chamber 101, or only the second flange 21 may be disposed around the valve head 20.

[0049] For example, Figure 4 and Figure 5 As shown in the figure, the outer contours of the first flange 11 and the second flange 21 are both roughly square in shape, and therefore have four corresponding corners. Four positioning protrusions are provided corresponding to these four corners, and each corresponds to the four corners. In this way, the multiple corners of the second flange 21 are all provided with conforming positioning protrusions for positioning and matching, which can not only improve the positioning reliability of the valve head 20 and the filter bottle 10, but also form multiple avoidance gaps for selection, thereby facilitating the operation of prying the valve head 20. Of course, in other embodiments, the positioning protrusions can also extend along the outer contour of the first flange 11 and be connected end to end.

[0050] In one embodiment, a plurality of reinforcing protrusions 14 are provided on a side of the first flange 11 facing away from the valve head 20. The reinforcing protrusions 14 abut against the outer circumference of the filter bottle 10. The plurality of reinforcing protrusions 14 are located at the corners of the first flange 11. The provision of the reinforcing protrusions 14, and their abutment against the outer circumference of the filter bottle 10, increases the structural strength of the first flange 11, reduces the possibility of bending and deformation of the first flange 11 during installation, use, and transportation, and thereby improves the stability and reliability of the pre-filter.

[0051] In one embodiment, the second fastener is a nut 32. The first through-hole 111 passes through both the first flange 11 and the reinforcing protrusion 14. The nut 32 is riveted to the reinforcing protrusion 14 and positioned within the first through-hole 111. By riveting the nut 32 within the reinforcing protrusion 14, the nut 32 is prevented from being directly exposed, thereby reducing the risk of impact during transport or installation, thereby improving the stability and reliability of the installation between the nut 32 and the filter bottle 10. Furthermore, by directly riveting the nut 32 to the reinforcing protrusion 14 rather than the first flange 11, when inserting the bolt 31, the user first inserts it into the first through-hole 111 located in the first flange 11, which has no threaded section. This facilitates installation and positioning, thereby improving installation efficiency.

[0052] Furthermore, the valve head 20 includes a metal outer shell and a plastic inner lining, and the plastic inner lining is fixed in the metal outer shell. It can be understood that by setting the outer shell of the valve head 20 to a metal material, the structural strength of the valve head 20 is increased, and the aesthetic effect of the valve head 20 is also increased. However, under the scouring of water flowing in from the water inlet 201, and the rusting of the metal material caused by long-term use of the valve head 20, the metal outer shell may precipitate metal elements, thereby causing heavy metal pollution to the water, thereby endangering human health. Therefore, the inner lining of the valve head 20 is set to a plastic material, so that the water entering from the water inlet 201 directly contacts the plastic inner lining, thereby reducing the pollution of the water by the metal outer shell. At the same time, it should be noted that the strength of existing plastic materials is relatively high, so it will not reduce the overall structural strength of the valve head 20.

[0053] Furthermore, the pre-filter also includes a filter element within the water filter chamber 101. After raw water (e.g., tap water or well water) flows from an external water source into the water inlet 201, it is filtered out by the filter element as it flows through the water filter chamber 101, removing large particles. The filtered water then flows out of the pre-filter through the water outlet 202 and toward the water consumption end. This process achieves a coarse filtration of the raw water.

[0054] Among them, a clean water chamber is formed in the filter element, and the filter element filters the water in the water filter chamber 101 and then flows it into the clean water chamber. An annular partition plate is also provided in the valve head 20, and the annular partition plate extends along the axial direction of the filter bottle 10. The annular partition plate divides the valve head 20 into a water inlet chamber and a water outlet chamber. The water inlet 201 is connected to the water inlet chamber, and the water outlet 202 is connected to the water outlet chamber. The valve head 20 is sealed to the filter bottle 10, and the annular partition plate is sealed to the filter element, so that the water inlet chamber is connected to the water filter chamber 101, and the clean water chamber is connected to the water outlet chamber. The water entering from the water inlet 201 flows out through the water inlet chamber, the water filter chamber 101, the clean water chamber, the water outlet chamber and the water outlet 202 in sequence.

[0055] The present invention also proposes a water use system, which includes the aforementioned pre-filter. The specific structure of the pre-filter refers to the above-mentioned embodiment. Since the present water use system adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0056] Among them, the water use system at least includes relevant components from the pre-filter to the water use end. For example, the water use system may include household appliances such as water heaters, dishwashers, and water dispensers, and may also include accessories such as water pipes for domestic water use throughout the house.

[0057] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pre-filter, characterized in that: include: A filter bottle, wherein the filter bottle is provided with a water filtering cavity and a first through hole; A valve head, wherein the valve head is provided with a water inlet, a water outlet and a second through hole, and the water inlet and the water outlet are connected through the water filter cavity; as well as A first fastener and a second fastener, wherein the first fastener is riveted to the filter bottle or the valve head, and the first fastener and the second fastener cooperate with the first through hole and the second through hole to fix the filter bottle and the valve head in connection.

2. The prefilter according to claim 1, wherein One of the first fastening member and the second fastening member is a bolt, and the other is a nut.

3. The prefilter according to claim 2, wherein: The nut is riveted to the filter bottle and is arranged corresponding to the first through hole.

4. The prefilter according to claim 3, characterized in that The nut is riveted into the first through hole.

5. The prefilter according to claim 1, wherein: The diameters of the first through hole and the second through hole are both 5 mm to 7 mm; and / or The shortest distance between the first through hole and the outer peripheral surface of the filter bottle is s, 4mm≤s≤7mm; and / or The valve head comprises a metal outer shell and a plastic lining portion, wherein the plastic lining portion is fixed in the metal outer shell.

6. The prefilter according to claim 1, wherein: The filter bottle is provided with a first flange, the valve head is provided with a second flange, the first through hole and the second through hole are respectively provided on the first flange and the second flange, and the first flange and the second flange are fitted and abutted.

7. The prefilter according to claim 6, wherein: The first flange and the second flange are both polygonal or quasi-polygonal in shape, and there are multiple first through holes and multiple second through holes, with one first through hole corresponding to one second through hole, and the multiple first through holes and the multiple second through holes are respectively arranged at the corners of the first flange and the second flange.

8. The pre-filter according to claim 7, characterized in that A plurality of reinforcing protrusions are provided on a side of the first flange away from the valve head. The reinforcing protrusions are in contact with the outer peripheral surface of the filter bottle, and the plurality of reinforcing protrusions are respectively located at the corners of the first flange.

9. The prefilter according to claim 8, characterized in that The second fastener is a nut, the first through hole passes through the first flange and the reinforcing protrusion at the same time, the nut is riveted to the reinforcing protrusion and is located in the first through hole.

10. A water system, characterized in that: The method comprises the pre-filter according to any one of claims 1 to 9.

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