Valve head of pre-filter and pre-filter

Abstract

The utility model relates to the technical field of water treatment purification equipment, in particular to a valve head of a pre-filter and the pre-filter, the valve head of the pre-filter comprises a main body provided with a first water inlet and a first water outlet, and the first water inlet and the first water outlet are oppositely arranged at two ends of the main body; limiting convex rings are arranged on the inner wall of the main body close to the first water inlet and the first water outlet, and supporting pipes are embedded in the first water inlet and the first water outlet and abut against the limiting convex rings. The supporting pipe is embedded in the valve head, so that the strength of the valve head is enhanced, breakage is effectively prevented, meanwhile, the supporting pipe abuts against the limiting convex ring after being embedded, the structural stability of the valve head is improved, shaking or loosening in the using process is prevented, the integrity of the valve head is improved, and the anti-breakage effect is further enhanced.

Description

[Technical field]

[0001] The utility model relates to the technical field of water treatment and purification equipment, in particular to a valve head of a pre-filter and the pre-filter. [Background technology]

[0002] As the first line of defense for household water use, the pre-filter can intercept large particles such as mud, rust, etc. from the source, ensuring clean drinking water and protecting the safety of terminal water-using equipment. Especially for water purifiers, filtering out large particles of impurities in advance can reduce the workload of the water purifier filter element and reduce filter element wear.

[0003] Existing pre-filters generally use copper valve heads, which have the advantages of high temperature resistance, corrosion resistance, rust resistance, high pressure resistance, and low processing cost. However, the copper valve head is brittle and can be easily cracked or even broken when connected to a harder external water pipe, affecting its service life. [Contents of the utility model]

[0004] In order to solve the technical problem that the valve head of the existing pre-filter is easily broken or snapped, the utility model provides a valve head of a pre-filter and a pre-filter.

[0005] The solution to the technical problem of the utility model is to provide a valve head of a pre-filter, including a main body provided with a first water inlet and a first water outlet, the first water inlet and the first water outlet being relatively arranged at two ends of the main body; a limiting convex ring is arranged on the inner wall of the main body near the first water inlet and the first water outlet, and a support tube is embedded in the first water inlet and the first water outlet, and the support tube abuts against the limiting convex ring.

[0006] Preferably, the ends of the main body close to the first water inlet and the first water outlet are provided with threaded sections, and the length of the support tube is greater than or equal to the length of the threaded sections.

[0007] Preferably, the wall thickness of the support tube is greater than or equal to the protrusion height of the limiting protrusion ring relative to the inner wall of the main body.

[0008] Preferably, a guiding inclined surface is provided at one end of the support tube abutting against the limiting convex ring.

[0009] Preferably, the support tube is a stainless steel support tube.

[0010] Preferably, the main body is provided with a partition between the first water outlet and the first water inlet.

[0011] Preferably, the valve head further comprises a connecting portion provided on the main body, and the connecting portion and the main body are integrally formed.

[0012] Preferably, a second water inlet and a second water outlet are provided between the connecting portion and the main body, the second water inlet is provided between the limiting convex ring and the partition near the first water inlet, and is connected to the first water inlet; the second water outlet is provided between the limiting convex ring and the partition near the first water outlet, and is connected to the first water outlet.

[0013] Preferably, an assembly opening is formed at one end of the connecting portion away from the main body.

[0014] In order to solve the above technical problems, the utility model provides another technical solution as follows: a pre-filter, comprising the valve head of the pre-filter as described above.

[0015] Compared with the prior art, the valve head and pre-filter provided by the utility model have the following advantages:

[0016] 1. The valve head of the pre-filter provided in the embodiment of the utility model comprises a main body provided with a first water inlet and a first water outlet, the first water inlet and the first water outlet are relatively arranged at two ends of the main body; a limiting convex ring is arranged on the inner wall of the main body near the first water inlet and the first water outlet, and a support tube is embedded in the first water inlet and the first water outlet, and the support tube abuts against the limiting convex ring. The support tube is embedded in the valve head to enhance the strength of the valve head, thereby effectively preventing the occurrence of fracture. At the same time, the support tube abuts against the limiting convex ring after being embedded, and the limiting convex ring supports and positions the support tube, thereby increasing the structural stability of the valve head, preventing shaking or loosening during use, improving the integrity of the valve head, and further enhancing the anti-fracture effect.

[0017] 2. The valve head of the pre-filter provided in the embodiment of the utility model is provided with a threaded section at the end of the main body close to the first water inlet and the first water outlet, and the length of the support tube is greater than or equal to the length of the threaded section, which can effectively prevent the threaded section from being easily broken, and at the same time ensure that the connection between the support tube and the main body is firm and reliable, preventing the support tube from loosening or falling off.

[0018] 3. In the valve head of the pre-filter provided in the embodiment of the utility model, the wall thickness of the support tube is greater than or equal to the protrusion height of the limiting convex ring relative to the inner wall of the main body, so as to prevent the limiting ring from blocking the water flow. At the same time, this design can enhance the structural strength of the support tube and improve the overall durability and reliability of the valve head.

[0019] 4. In the valve head of the pre-filter provided in the embodiment of the utility model, a guide slope is provided at one end of the support tube abutting against the limiting convex ring. Such a design can make it easier to align and insert the support tube with the limiting convex ring, facilitate the embedding of the support tube, and improve the convenience and efficiency of installation.

[0020] 5. The valve head of the pre-filter provided in the embodiment of the utility model has a main body provided with a partition between the first water outlet and the first water inlet, which is used to completely separate the first water outlet and the first water inlet, and prevent the external water flow from entering through the first water inlet and flowing out directly from the first water outlet without being filtered. At the same time, the partition can effectively control the flow direction of the water flow, ensuring the filtering efficiency and performance of the pre-filter.

[0021] 6. The valve head of the pre-filter provided in the embodiment of the utility model, the valve head also includes a connecting part arranged on the main body, which is used to connect the filter bottle and other structures of the pre-filter. The connecting part and the main body are integrally formed, so that the overall structure of the valve head is more stable, and the problems caused by loose connection parts are reduced. At the same time, the number of parts is reduced, the manufacturing process is simplified, the manufacturing cost is reduced, and the production efficiency is improved.

[0022] 7. In the valve head of the pre-filter provided in the embodiment of the utility model, the second water inlet is provided between the limiting convex ring and the partition near the first water inlet, and is connected to the first water inlet; the second water outlet is provided between the limiting convex ring and the partition near the first water outlet, and is connected to the first water outlet, and the second water inlet and the second water outlet are arranged away from the support tube to avoid opening a gap in the support tube, thereby maintaining the integrity and support strength of the support tube.

[0023] 8. A pre-filter provided in an embodiment of the utility model includes the valve head of the pre-filter as described above. The pre-filter has all the beneficial effects of the valve head of the pre-filter as described above, which will not be described in detail here.

Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 these drawings without paying creative labor.

[0025] Figure 1 It is an exploded schematic diagram of the valve head of the pre-filter provided in the first embodiment of the utility model.

[0026] Figure 2 The cross-sectional view of the valve head of the pre-filter provided in the first embodiment of the utility model is Figure 1 .

[0027] Figure 3 The cross-sectional view of the valve head of the pre-filter provided in the first embodiment of the utility model is Figure 2 .

[0028] Figure 4A three-dimensional schematic diagram of a pre-filter provided in the second embodiment of the present invention.

[0029] Description of the accompanying drawings:

[0030] 1. Valve head; 2. Pre-filter;

[0031] 10. First water inlet; 11. First water outlet; 12. Position limiting convex ring; 13. Support pipe; 14. Threaded section; 15. Main body; 16. Partition plate; 17. Connecting part; 20. Filter bottle; 21. Drain valve;

[0032] 170. Second water inlet; 171. Second water outlet; 172. Assembly port. [Specific implementation method]

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0036] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0037] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] Please combine Figure 1 and Figure 2 The first embodiment of the utility model provides a valve head 1 of a pre-filter 2, including a main body 15 provided with a first water inlet 10 and a first water outlet 11, and the first water inlet 10 and the first water outlet 11 are relatively arranged at two ends of the main body 15; a limiting convex ring 12 is arranged on the inner wall of the main body 15 near the first water inlet 10 and the first water outlet 11, and a supporting tube 13 is embedded in the first water inlet 10 and the first water outlet 11, and the supporting tube 13 abuts against the limiting convex ring 12.

[0039] It can be understood that the support tube 13 is embedded in the valve head 1 to enhance the strength of the valve head 1, thereby effectively preventing the occurrence of fracture. At the same time, after the support tube 13 is embedded, it abuts against the limiting convex ring 12. The limiting convex ring 12 is an annular protrusion set on the inner wall of the main body 15, which is used to support and position the support tube 13. This design increases the structural stability of the valve head 1, prevents shaking or loosening during use, improves the integrity of the valve head 1, and further enhances the anti-fracture effect.

[0040] It can be understood that the outer diameter of the support tube 13 is equal to or slightly larger than the inner diameter of the first water inlet 10 and the first water outlet 11. After the support tube 13 is embedded, an interference fit can be achieved to ensure a stable embedding, which can ensure that the connection between the support tube 13 and the first water inlet 10 and the first water outlet 11 is more firm and stable, avoiding loosening or falling off due to size mismatch. At the same time, the interference fit can reduce the gap between components, thereby reducing the vibration and noise that may be generated during use, improving the stability and comfort of the equipment, reducing the wear and friction between parts, and thus extending the service life of the equipment.

[0041] It can be understood that the first water inlet 10 and the first water outlet 11 are both connected to an external water pipe. The first water inlet 10 is used to introduce the water flow in the external water pipe into the valve head 1 for filtering and other operations, and the first water outlet 11 is used to lead the filtered water flow out to the outside.

[0042] Specifically, in this embodiment, the shape and size of the support tube 13 are adapted to the first water inlet 10 and the first water outlet 11 of the main body 15. The size and shape of the first water inlet 10 and the first water outlet 11 may be the same or different, and the shapes and sizes of the two corresponding support tubes 13 may be the same or different.

[0043] The present embodiment does not specifically limit the material of the support tube 13 , and the support tube 13 should be made of a safe, non-toxic and non-deformable material.

[0044] Optionally, the support tube 13 is a stainless steel support tube. The stainless steel support tube has excellent corrosion resistance, can resist the erosion of most chemical substances, can operate stably for a long time, and has high strength and rigidity, can withstand greater pressure and weight, and can play a very good supporting role for the main body 15. In addition, the stainless steel support tube also has many advantages such as good oxidation resistance, low bacteria growth, and recyclability. Therefore, the support tube 13 can be preferably a stainless steel support tube.

[0045] Please read further Figure 3 The main body 15 is provided with a threaded section 14 at the end near the first water inlet 10 and the first water outlet 11, and the length L1 of the support pipe 13 (such as Figure 3 L1 shown in the figure is not less than the length L2 of the thread segment 14 (as shown in the figure Figure 3 L2 shown).

[0046] It can be understood that the copper valve head 1 has a threaded section 14 at the end for spiral connection with an external water pipe. Due to the thread and the extrusion of the external water pipe, the threaded section 14 of the main body 15 is at a high risk of rupture and breakage. The length L1 of the support tube 13 is not less than the length L2 of the threaded section 14, so the support tube 13 can support the entire threaded section 14, effectively preventing the threaded section 14 from deforming, rupturing or breaking, while ensuring that the connection between the support tube 13 and the main body 15 is firm and reliable, preventing the support tube 13 from loosening or falling off.

[0047] Specifically, in this embodiment, the ends of the main body 15 close to the first water inlet 10 and the first water outlet 11 are respectively provided with thread segments 14, and the lengths and thread pitches of the two thread segments 14 can be the same or different. The distance between the limiting convex ring 12 and the first water inlet 10 and the first water outlet 11 should not be less than the distance between the thread segments to ensure that the support tube 13 can fully support the thread segments 14.

[0048] Furthermore, the wall thickness of the support tube 13 is greater than or equal to the protrusion height of the limiting protrusion ring 12 relative to the inner wall of the main body.

[0049] It can be understood that this design can prevent the limiting convex ring 12 from blocking the water flow, thereby ensuring the filtering efficiency and performance, and at the same time can enhance the structural strength of the support tube 13 and improve the overall durability and reliability of the valve head 1.

[0050] Specifically, in this embodiment, the wall thickness of the support tube 13 is equal to the protrusion height of the limiting protrusion 12 relative to the inner wall of the main body, that is, the inner wall of the support tube 13 is flush with the top surface of the limiting protrusion 12, preventing the limiting protrusion 12 from blocking the water flow and preventing the support tube 13 from further blocking the water flow.

[0051] Furthermore, a guiding slope is provided at one end of the support tube 13 abutting against the limiting protruding ring 12. The guiding slope can more easily align and insert the support tube 13 with the limiting protruding ring 12, facilitate the embedding of the support tube 13, and improve the convenience and efficiency of installation.

[0052] Please continue reading Figure 2 The main body 15 is provided with a partition 16 between the first water outlet 11 and the first water inlet 10. The partition 16 is used to completely separate the first water outlet 11 and the first water inlet 10, preventing the external water flow from entering through the first water inlet 10 and flowing out of the first water outlet 11 without being filtered. At the same time, the partition 16 effectively controls the flow direction of the water flow, ensuring the filtering efficiency and performance of the pre-filter.

[0053] Furthermore, the valve head 1 further includes a connection portion 17 disposed on the main body 15, and the connection portion 17 is integrally formed with the main body 15. The connection portion 17 is used to connect the filter bottle 20 and other structures of the pre-filter 2. The connection portion 17 and the main body 15 are integrally formed to make the overall structure of the valve head 1 more stable, reduce problems caused by looseness of the connection portion 17, and reduce the number of parts, simplify the manufacturing process, reduce manufacturing costs, and improve production efficiency.

[0054] Furthermore, a second water inlet 170 and a second water outlet 171 are provided between the connecting portion 17 and the main body. The second water inlet 170 is provided between the limiting convex ring 12 and the partition 16 near the first water inlet 10, and is communicated with the first water inlet 10; the second water outlet 171 is provided between the limiting convex ring 12 and the partition 16 near the first water outlet 11, and is communicated with the first water outlet 11. This design avoids providing a notch on the support tube 13, and maintains the integrity and support strength of the support tube 13.

[0055] It can be understood that the second water inlet 170 is connected to the first water inlet 10, and the second water outlet 171 is connected to the first water outlet 11. The first water inlet 10 is connected to the external water pipe, and is used to introduce water from the external water pipe. The second water inlet 170 then guides the water into the filter bottle 20 connected to the connecting portion 17. The second water outlet 171 guides the water after filtration by the filter bottle 20 to the first water outlet 11, and then guides it out from the first water outlet 11.

[0056] Specifically, in this embodiment, the partition 16 is disposed near the second water inlet 170, so that the partition 16 can better guide the water flow from the first water inlet 10 to the second water inlet 170, thereby ensuring the filtering efficiency and performance of the pre-filter. The size and shape of the second water inlet 170 and the second water outlet 171 are not specifically limited in this embodiment.

[0057] Optionally, the diameter of the second water outlet 171 is smaller than the diameter of the second water inlet 170 to increase the resistance of water flow, so that water stays longer when passing through the filter element of the pre-filter, which helps to filter out impurities and pollutants more thoroughly. Due to the reduced water flow rate, the smaller water outlet can help the filter element to more effectively capture smaller impurities and particles, improve the filtration accuracy of the filtration, and provide better water quality.

[0058] Furthermore, an assembly port 172 is provided at one end of the connection portion 17 away from the main body, and structures such as the filter bottle 20 of the pre-filter 2 are connected and assembled specifically through the assembly port 172 .

[0059] See also Figure 4 The second embodiment of the utility model provides a pre-filter 2, including the valve head 1 of the pre-filter 2 as described above.

[0060] It can be understood that the pre-filter 2 also includes structures such as a filter bottle 20 and a drain valve 21. The filter bottle 20 is connected and matched with the valve head 1 to achieve water filtration, and the filtered wastewater is discharged by the drain valve 21. The pre-filter 2 has all the beneficial effects of the valve head 1 of the pre-filter, which will not be repeated here.

[0061] Compared with the prior art, the valve head and pre-filter provided by the utility model have the following advantages:

[0062] 1. The valve head of the pre-filter provided in the embodiment of the utility model comprises a main body provided with a first water inlet and a first water outlet, the first water inlet and the first water outlet are relatively arranged at two ends of the main body; a limiting convex ring is arranged on the inner wall of the main body near the first water inlet and the first water outlet, and a support tube is embedded in the first water inlet and the first water outlet, and the support tube abuts against the limiting convex ring. The support tube is embedded in the valve head to enhance the strength of the valve head, thereby effectively preventing the occurrence of fracture. At the same time, the support tube abuts against the limiting convex ring after being embedded, and the limiting convex ring supports and positions the support tube, thereby increasing the structural stability of the valve head, preventing shaking or loosening during use, improving the integrity of the valve head, and further enhancing the anti-fracture effect.

[0063] 2. The valve head of the pre-filter provided in the embodiment of the utility model is provided with a threaded section at the end of the main body close to the first water inlet and the first water outlet, and the length of the support tube is greater than or equal to the length of the threaded section, which can effectively prevent the threaded section from being easily broken, and at the same time ensure that the connection between the support tube and the main body is firm and reliable, preventing the support tube from loosening or falling off.

[0064] 3. In the valve head of the pre-filter provided in the embodiment of the utility model, the wall thickness of the support tube is greater than or equal to the protrusion height of the limiting convex ring relative to the inner wall of the main body, so as to prevent the limiting ring from blocking the water flow. At the same time, this design can enhance the structural strength of the support tube and improve the overall durability and reliability of the valve head.

[0065] 4. In the valve head of the pre-filter provided in the embodiment of the utility model, a guide slope is provided at one end of the support tube abutting against the limiting convex ring. Such a design can make it easier to align and insert the support tube with the limiting convex ring, facilitate the embedding of the support tube, and improve the convenience and efficiency of installation.

[0066] 5. The valve head of the pre-filter provided in the embodiment of the utility model has a main body provided with a partition between the first water outlet and the first water inlet, which is used to completely separate the first water outlet and the first water inlet, and prevent the external water flow from entering through the first water inlet and flowing out directly from the first water outlet without being filtered. At the same time, the partition can effectively control the flow direction of the water flow, ensuring the filtering efficiency and performance of the pre-filter.

[0067] 6. The valve head of the pre-filter provided in the embodiment of the utility model, the valve head also includes a connecting part arranged on the main body, which is used to connect the filter bottle and other structures of the pre-filter. The connecting part and the main body are integrally formed, so that the overall structure of the valve head is more stable, and the problems caused by loose connection parts are reduced. At the same time, the number of parts is reduced, the manufacturing process is simplified, the manufacturing cost is reduced, and the production efficiency is improved.

[0068] 7. In the valve head of the pre-filter provided in the embodiment of the utility model, the second water inlet is provided between the limiting convex ring and the partition near the first water inlet, and is connected to the first water inlet; the second water outlet is provided between the limiting convex ring and the partition near the first water outlet, and is connected to the first water outlet, and the second water inlet and the second water outlet are arranged away from the support tube to avoid opening a gap in the support tube, thereby maintaining the integrity and support strength of the support tube.

[0069] 8. A pre-filter provided in an embodiment of the utility model includes the valve head of the pre-filter as described above. The pre-filter has all the beneficial effects of the valve head of the pre-filter as described above, which will not be described in detail here.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve head for a pre-filter, characterized in that: It includes a main body provided with a first water inlet and a first water outlet, wherein the first water inlet and the first water outlet are relatively arranged at two ends of the main body; a limiting convex ring is arranged on the inner wall of the main body near the first water inlet and the first water outlet, and a supporting tube is embedded in the first water inlet and the first water outlet, and the supporting tube abuts against the limiting convex ring.

2. The valve head of the pre-filter according to claim 1, characterized in that: The ends of the main body close to the first water inlet and the first water outlet are provided with threaded sections, and the length of the support pipe is greater than or equal to the length of the threaded section.

3. The valve head of the pre-filter according to claim 1, characterized in that: The wall thickness of the support tube is greater than or equal to the protrusion height of the limiting protrusion relative to the inner wall of the main body.

4. The valve head of the pre-filter according to claim 1, characterized in that: One end of the support tube abutting against the limiting convex ring is provided with a guiding inclined surface.

5. The valve head of the pre-filter according to claim 1, characterized in that: The support tube is a stainless steel support tube.

6. The valve head of the pre-filter according to claim 1, characterized in that: The main body is provided with a partition between the first water outlet and the first water inlet.

7. The valve head of the pre-filter according to claim 6, characterized in that: The valve head further comprises a connecting portion arranged on the main body, and the connecting portion and the main body are integrally formed.

8. The valve head of the pre-filter according to claim 7, characterized in that: A second water inlet and a second water outlet are provided between the connecting portion and the main body; the second water inlet is provided between the limiting convex ring and the partition near the first water inlet, and is communicated with the first water inlet; the second water outlet is provided between the limiting convex ring and the partition near the first water outlet, and is communicated with the first water outlet.

9. The valve head of the pre-filter according to claim 7, characterized in that: An assembly opening is formed at one end of the connecting portion away from the main body.

10. A pre-filter, characterized in that: A valve head comprising a pre-filter as claimed in any one of claims 1 to 9.

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