Pre-filter and filtration system with large flow valve body

Abstract

The utility model discloses a front filter and filter system with big flow valve body relates to front filter technical field. Through the valve body is designed as the structure of two part assembly of plastic body and metal insert part, and plastic body can adopt injection molding process forming to guarantee the size of water inlet and the size of water inlet through -hole same, guarantee the water inlet effect of front filter. In addition, set up metal insert part can guarantee the stable connection of valve body and filter assembly, provide the stopper on the metal insert part design, and control the stop direction of stopper is at least two directions, can guarantee the fixed connection between metal insert part and plastic body, avoid the displacement of both in the use process. The structure not only can improve the water inlet efficiency of front filter, can guarantee the stable connection between filter assembly when the valve body is plastic material simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of pre-filter technology, and more specifically, to a pre-filter and filtration system with a high-flow-rate valve body. Background Technology

[0002] A pre-filter is the first coarse filtration device for the whole house's water system. It can filter out sediment, rust, algae, and other large particulate impurities from tap water. It is usually installed after the water meter in the inlet pipe to filter large particulate impurities in the pipes. It not only protects the user's safe water use, but also plays a positive and effective role in protecting the water pipes, faucets, valves, and end-point water appliances throughout the house.

[0003] The valve body of a pre-filter includes an inlet channel, an inlet port, an outlet port, and an outlet channel. Water passes through the inlet channel and inlet port sequentially for filtration, and the filtered water flows out through the outlet port and outlet channel. Currently, most pre-filters on the market have an inlet port that is smaller than the inlet channel, affecting the water flow rate.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pre-filter and filtration system with a large flow valve body.

[0006] This utility model is implemented as follows:

[0007] In a first aspect, this utility model provides a pre-filter with a large flow valve body, including a valve body, a filter assembly, a cup assembly, a connector assembly, and a drain valve assembly.

[0008] The valve body includes a plastic body and a metal insert. The plastic body includes a water passage section and a connecting section. The metal insert is fixedly installed in the connecting section. The metal insert includes multiple limiting elements, and the limiting directions of the multiple limiting elements are at least two directions.

[0009] The filter assembly is sealed to the water passage section, the cup assembly is sealed to the metal insert, the filter assembly is housed in the cup assembly and is spaced apart from the cup assembly, and the end of the cup assembly away from the valve body is connected to the drain valve assembly through the connector assembly.

[0010] In an optional embodiment, the limiting direction of the limiting member on the metal insert includes the horizontal direction and the vertical direction.

[0011] In an optional embodiment, the limiting member includes a protrusion and a groove, with the protrusion and groove being alternately arranged.

[0012] In an optional embodiment, the shape of the protrusion includes annular or block-shaped; when the shape of the protrusion is block-shaped, multiple block-shaped structures on the same annular surface constitute one protrusion.

[0013] In an optional embodiment, the protrusion includes a first protrusion and a second protrusion. The first protrusion protrudes radially along the metal insert, and the second protrusion protrudes axially along the metal insert. Both the first and second protrusions are injection molded to the plastic body. The second protrusion is located on the side of the connecting section near the water passage section.

[0014] In an optional embodiment, the number of first protrusions is 2 to 5.

[0015] In an optional embodiment, the protrusion direction of at least one first protrusion forms an angle with the radial direction of the metal insert, the angle being 8 to 12 degrees.

[0016] In an optional implementation, at least two adjacent first protrusions have opposite inclination directions, so that at least one groove has a dovetail groove structure.

[0017] In an optional embodiment, the water passage section includes an inlet channel, an outlet, an outlet, and an outlet channel arranged in sequence, and a separator is provided between the inlet and the outlet. The separator passes through the connection between the outlet and the outlet channel, and the filter assembly is sealed to the separator on the water passage section.

[0018] Secondly, this utility model provides a filtration system, including a pipe, a water-using unit, and a pre-filter as described in any of the foregoing embodiments, wherein the pipe is sequentially connected to the pre-filter and the water-using unit.

[0019] This utility model has the following beneficial effects:

[0020] This invention provides a pre-filter and filtration system with a high-flow-rate valve body. The valve body is designed as an assembly of a plastic body and a metal insert. The plastic body can be molded using processes such as injection molding, ensuring that the size of the inlet is the same as the size of the inlet hole, thus guaranteeing the water intake efficiency of the pre-filter. Furthermore, the metal insert ensures a stable connection between the valve body and the filter assembly. The metal insert is equipped with limiting elements, and the limiting direction is controlled in at least two directions, ensuring a fixed connection between the metal insert and the plastic body and preventing displacement during use. This structure not only improves the water intake efficiency of the pre-filter but also ensures a stable connection between the valve body and the filter assembly when the valve body is made of plastic. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 An exploded view of the pre-filter provided in the first embodiment of this utility model;

[0023] Figure 2 A cross-sectional view of the filtration process structure of the pre-filter provided in the first embodiment of this utility model;

[0024] Figure 3 A perspective view of the valve body provided in the first embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the valve body provided in the first embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the filter assembly provided in the first embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the cup assembly provided in the first embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the connector assembly provided in the first embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the drain valve assembly provided in the first embodiment of the present invention;

[0030] Figure 9 A cross-sectional view of the metal insert provided in the first embodiment of this utility model;

[0031] Figure 10 This is a schematic diagram of the structure of the metal insert provided in the first embodiment of the present invention;

[0032] Figure 11 Here is an exploded view of the existing valve body structure;

[0033] Figure 12 This is a schematic diagram of the existing valve body.

[0034] Key component symbols: 100-Pre-filter; 110-Valve body; 111-Plastic body; 1111-Water passage; 1112-Connecting section; 1113-Inlet channel; 1114-Inlet; 1115-Outlet; 1116-Outlet channel; 1117-Separator; 112-Metal insert; 1121-First protrusion; 1122-Second protrusion; 1123-Groove; 1124-Angle; 120-Filter assembly; 130-Cup assembly; 140-Connector assembly; 150-Drain valve assembly; 210-Valve body; 211-Inlet. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] First Embodiment

[0042] Please refer to Figure 1 and Figure 2 This embodiment provides a pre-filter 100 with a large flow valve body 110, including a valve body 110, a filter assembly 120, a cup assembly 130, a connector assembly 140, and a drain valve assembly 150.

[0043] Please refer to Figure 3 and Figure 4 The valve body 110 includes a plastic body 111 and a metal insert 112. The plastic body 111 includes a water passage section 1111 and a connecting section 1112. The metal insert 112 is fixedly installed in the connecting section 1112. The metal insert 112 includes multiple limiting members, and the limiting directions of the multiple limiting members are at least two directions.

[0044] Please refer to Figure 1 and Figure 2 The filter assembly 120 is sealed to the water passage section 1111, and the cup assembly 130 is sealed to the metal insert 112. The filter assembly 120 is housed in the cup assembly 130 and is spaced apart from the cup assembly 130 to ensure that the water filtration process can proceed smoothly. The end of the cup assembly 130 away from the valve body 110 is connected to the drain valve assembly 150 through the connector assembly 140.

[0045] In this embodiment, the filter assembly 120, cup body assembly 130, connector assembly 140, and drain valve assembly 150 can adopt existing structures; please refer to [reference needed]. Figure 5 The filter component 120 can be, for example, a filter screen or other structure, as long as it can achieve the filtration effect; please refer to... Figure 6 The cup assembly 130 serves as the outer shell of the filter chamber of the signature filter, and its main function is to store water. Therefore, it is sufficient that the cup assembly 130 can hold a certain volume of water. Please refer to... Figure 7 and Figure 8 One end of the connector assembly 140 is sealed to the end of the cup assembly 130 away from the valve body 110, and the other end is sealed to the drain valve assembly 150, so that the drain valve assembly 150 is connected to the cup assembly 130. When it is necessary to drain, the impurities in the cup can be discharged from the drain valve assembly 150.

[0046] Please refer to Figure 11 and Figure 12 The valve body 210 of the existing pre-filters is made of brass forging and then machined. The inlet and outlet water channels are machined inside the valve body 210. Due to the limitations of the machining process, and the fact that the water inlet 211 at the far end of the water inlet channel is far from the opening of the water inlet channel, the size of the water inlet 211 of the valve body 210 of the existing pre-filters is smaller than the size of the water inlet channel, which affects the water flow rate of the pre-filter.

[0047] Therefore, this utility model provides a new valve body 110 for a pre-filter 100. Through the combination of a plastic body 111 and a metal insert 112, the metal insert 112 is designed for easy connection to the filter assembly 120, ensuring the normal operation of the pre-filter 100. The plastic body 111 can be injection molded to directly form the inlet 1114, ensuring that the size of the inlet 1114 matches the size of the inlet channel 1113, thereby improving the water intake efficiency of the pre-filter 100. Furthermore, the metal insert 112 can be integrally molded with the plastic body 111 during the injection molding process, making the valve body 110 a single, integrated structure. This avoids the problems of complex installation and leakage risks at the connection points associated with existing assembled valve bodies 110.

[0048] Furthermore, since the valve body 110 is composed of two parts, a metal insert 112 and a plastic body 111, the connection and fixing method between the two becomes another challenge in this field. In order to ensure a stable connection between the two, the inventors set multiple limiting members in the metal insert 112, and the limiting members have at least two limiting directions, which can ensure that the metal insert 112 does not shift within the plastic body 111, thus ensuring the stable operation of the pre-filter 100.

[0049] Furthermore, given the widespread use of PPR pipes in household plumbing installations, and the fact that existing pre-filters all have metal valve bodies 210, installation requires two steps: a nut-and-loop connection and a heat-fusion connection. This increases installation costs, difficulty, and the number of connection points, raising the risk of leakage. In contrast, the valve body 110 of this application includes a plastic body 111, which can be directly heat-fused to the PPR pipe. This provides convenient and quick installation without adding new connection points, thus reducing the risk of leakage.

[0050] In this embodiment, the water passage section 1111 includes an inlet channel 1113, an inlet 1114, an outlet 1115, and an outlet channel 1116 arranged sequentially. A separator 1117 is provided between the inlet 1114 and the outlet 1115. The separator 1117 passes through the connection between the outlet 1115 and the outlet channel 1116. The filter assembly 120 is sealed to the separator 1117 on the water passage section 1111.

[0051] In this embodiment, the plastic body 111 has an overall T-shaped structure. The main body of the water passage section 1111 is the horizontal bar of the T-shape, and the inlet 1114 and the outlet 1115 are separated by a separator 1117. The separator 1117 extends towards the connecting section 1112 to isolate the inlet 1114 and the outlet 1115, so that the water must enter the cup assembly 130 for filtration before flowing out of the outlet 1115. At the same time, in order to ensure that the filtered water can flow normally from the outlet 1115 to the outlet channel 1116, the separator 1117 has an opening at the connection between the outlet 1115 and the outlet channel 1116. The connecting section 1112 is the vertical part of the T-shape, used to connect with the cup assembly 130.

[0052] In this embodiment, the connecting segment 1112 is threadedly sealed to the cup body assembly 130.

[0053] To ensure a secure connection between the metal insert 112 and the plastic body 111, the specific structure of the limiting member in this embodiment is as follows:

[0054] The limiting direction of the limiting component provided in this embodiment includes the horizontal direction and the vertical direction.

[0055] In addition, the limiting component in this embodiment also includes two types of protrusions and grooves 1123. The protrusions and grooves 1123 are alternately arranged to ensure that the metal insert 112 and the plastic body 111 in the valve body 110 formed by injection molding are not easily separated, and to ensure that the two are tightly connected.

[0056] Please refer to Figure 9 and Figure 10 In this embodiment, the protrusion includes a first protrusion 1121 and a second protrusion 1122. The first protrusion 1121 protrudes radially along the metal insert 112, and the second protrusion 1122 protrudes axially along the metal insert 112. Both the first protrusion 1121 and the second protrusion 1122 are injection molded to the plastic body 111. After installation, the second protrusion 1122 is located on the side close to the water passage section 1111.

[0057] In this embodiment, there are three first protrusions 1121, which are spaced apart and have a groove 1123 between adjacent protrusions. The alternating arrangement of the first protrusions 1121 and the grooves 1123 makes the connection between the plastic body 111 and the metal insert 112 more tight.

[0058] In this embodiment, the first protrusion 1121 does not protrude completely in the horizontal direction, but rather at a certain angle in the horizontal direction. In this embodiment, the protrusion direction of the first protrusion 1121 forms an angle 1124 with the radial direction of the metal insert 112, and the angle 1124 is 10°.

[0059] In this embodiment, the inclination directions of two adjacent first protrusions 1121 are opposite, so that one of the grooves 1123 has a dovetail groove structure, so as to ensure a stable connection between the metal insert 112 and the plastic body 111.

[0060] In this embodiment, to ensure a stable connection between the metal insert 112 and the plastic body 111 without relative displacement, the three first protrusions 1121 and one second protrusion 1122 are each composed of multiple block-shaped structures on the same annular surface. The multiple block-shaped protrusions on each first protrusion 1121 or second protrusion 1122 are evenly spaced on the same annular surface to increase the resistance to displacement between the metal insert 112 and the plastic body 111. In other embodiments, the first protrusion 1121 and the second protrusion 1122 may also be annular protrusion structures.

[0061] Furthermore, this embodiment also provides a filtration system, including a pipe, a water-using unit, and the aforementioned pre-filter 100. The pipe is sequentially connected to the pre-filter 100 and the water-using unit, so that the water in the pipe flows into the water-using unit after being filtered by the pre-filter 100.

[0062] Among them, water-using units can be household faucets, toilets, and washing machines, etc.

[0063] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pre-filter with a high-flow-rate valve body, characterized in that, Includes valve body, filter assembly, cup body assembly, connector assembly and drain valve assembly; The valve body includes a plastic body and a metal insert. The plastic body includes a water passage section and a connecting section. The metal insert is fixedly installed in the connecting section. The metal insert includes multiple limiting members, and the limiting directions of the multiple limiting members are at least two directions. The filter assembly is sealed to the water passage section, the cup assembly is sealed to the metal insert, the filter assembly is housed within the cup assembly and is spaced apart from the cup assembly, and the end of the cup assembly away from the valve body is connected to the drain valve assembly through the connector assembly.

2. The pre-filter according to claim 1, characterized in that, The limiting direction of the limiting member on the metal insert includes the horizontal direction and the vertical direction.

3. The pre-filter according to claim 1, characterized in that, The limiting member includes a protrusion and a groove, and the protrusion and the groove are alternately arranged.

4. The pre-filter according to claim 3, characterized in that, The shape of the protrusion includes ring-shaped or block-shaped; when the shape of the protrusion is block-shaped, multiple block-shaped structures on the same ring surface constitute one protrusion.

5. The pre-filter according to claim 3, characterized in that, The protrusion includes a first protrusion and a second protrusion. The first protrusion protrudes radially along the metal insert, and the second protrusion protrudes axially along the metal insert. Both the first protrusion and the second protrusion are injection molded to the plastic body. The second protrusion is located on the side of the connecting section near the water passage section.

6. The pre-filter according to claim 5, characterized in that, The number of the first protrusion is 2 to 5.

7. The pre-filter according to claim 6, characterized in that, At least one of the first protrusions forms an angle with the radial direction of the metal insert, the angle being 8 to 12 degrees.

8. The pre-filter according to claim 7, characterized in that, At least two adjacent first protrusions have opposite inclination directions, so that at least one of the grooves has a dovetail groove structure.

9. The pre-filter according to claim 1, characterized in that, The water passage section includes an inlet channel, an outlet, an outlet, and an outlet channel arranged in sequence, and a separator is provided between the inlet and the outlet. The separator passes through the connection between the outlet and the outlet channel, and the filter assembly is sealed to the separator on the water passage section.

10. A filtration system, characterized in that, It includes a pipe, a water supply unit, and a pre-filter as described in any one of claims 1 to 9, wherein the pipe is sequentially connected to the pre-filter and the water supply unit.

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