Filter element

Abstract

The utility model relates to a filter element which comprises a shell, a support and a filter material, the shell is provided with a containing cavity, and the containing cavity is provided with a water inlet and a water outlet. The support is arranged in the containing cavity and provided with a first fulcrum and a second fulcrum, and the first fulcrum and the second fulcrum have a height difference. The filter material is arranged in the containing cavity and supported on the support, and the part, supported between the first fulcrum and the second fulcrum, of the filter material forms a flow guide filter section arranged in an inclined mode. Water flow drips on the flow guide filtering section at a certain oblique angle, bubbles can be reduced, the water flow obliquely flows, the effect of removing the generated bubbles is achieved, the water flow can smoothly pass through the filtering material, and the filtering efficiency is improved. Furthermore, the speed of the substances accumulated on the surface of the filter material can be reduced, so that the filter material is not easy to block, the service life of the filter material is prolonged, and the filtering efficiency of the filter element device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a filter element. Background Art

[0002] With the continuous improvement of living standards, people have higher and higher requirements for domestic water. As the main source of domestic water, tap water needs to go through many complex process flows, but the produced tap water still contains residual chlorine and some metal ions, which not only affect the taste of water, but may also be harmful to the body. A water filter is a drinking water filter that plays a certain role in purifying household drinking water. When using it, just pour water into the pot, and clean drinking water can be filtered out under the action of gravity. The filter element is an important structure for filtering in the water filter.

[0003] A filter element device is disclosed in the related art, and the filter element device includes a housing and a filter material. The housing is provided with a water inlet, a water outlet, a receiving chamber and a water outlet channel. The receiving chamber is connected between the water inlet and the water outlet channel, and the water outlet is connected to the water outlet channel. The filter material is arranged in the receiving chamber. The water entering the receiving chamber from the water inlet is filtered by the filter material and then drawn out from the water outlet channel and the water outlet. However, the filter material is in a flat structure and is placed horizontally in the receiving chamber. When the water falls under the action of gravity and impacts the surface of the filter material, the flow rate of the water flow is greatly slowed down and many bubbles are formed on the surface of the filter material. The bubbles in turn form resistance to the water flow, slowing down the speed of the water flowing through the filter material and reducing the filtration efficiency. Furthermore, since the speed of the water flow is slowed down, substances such as scale, particulate impurities and colloids in the water are more likely to deposit and accumulate on the surface of the filter material, forming dirt and blockage, affecting the service life of the filter material, and reducing the filtration efficiency of the filter element device. Utility Model Content

[0004] The purpose of the utility model is to provide a filter element to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0006] The utility model provides a filter element, which comprises: a shell body, provided with a accommodating cavity, and the accommodating cavity has a water inlet and a water outlet; a bracket, arranged in the accommodating cavity, the bracket has a first fulcrum and a second fulcrum, and the first fulcrum and the second fulcrum have a height difference; a filter material, arranged in the accommodating cavity and supported on the bracket, the part of the filter material supported between the first fulcrum and the second fulcrum forms a diversion filter section arranged in an inclined manner.

[0007] In some embodiments of the present application, the bracket includes a first bracket and a second bracket; the first bracket has the first fulcrum and the second fulcrum; the filter material is supported on the first bracket; and the second bracket clamps the filter material between the first bracket and the second bracket.

[0008] In some embodiments of the present application, the second bracket has a third fulcrum and a fourth fulcrum, and the third fulcrum and the fourth fulcrum have a height difference; the third fulcrum is arranged corresponding to the first fulcrum; and the fourth fulcrum is arranged corresponding to the second fulcrum.

[0009] In some embodiments of the present application, a receiving groove is formed in the first bracket; a support platform is provided on the peripheral side wall of the receiving groove; the peripheral side edge of the filter material is supported on the top surface of the support platform; and the peripheral side surface of the filter material is attached to the peripheral side wall of the receiving groove.

[0010] In some embodiments of the present application, the bracket includes a first bracket; the first bracket includes a first support rib and a second support rib; one end of the first support rib is flush with one end of the second support rib; the first fulcrum is formed at the other end of the first support rib; and the second fulcrum is formed at the other end of the second support rib.

[0011] In some embodiments of the present application, the shell is provided with a flow guide tube; the two ends of the flow guide tube are respectively a water outlet and the water outlet; the water outlet is higher than the bottom surface of the accommodating cavity.

[0012] In some embodiments of the present application, the filter element also includes a guide tube; the first end of the guide tube is open, and the second end of the guide tube is closed; the guide tube is sleeved on the guide tube, the first end of the guide tube is close to the water outlet, and there is a water flow gap with the bottom surface of the accommodating cavity; the second end of the guide tube is close to the water outlet; there is also a water flow channel between the guide tube and the guide tube, which connects the internal channel of the guide tube and the water flow gap.

[0013] In some embodiments of the present application, the internal channel of the guide pipe includes an equal diameter portion and a reduced diameter portion with a tapered shape; the narrowing portion of the reduced diameter portion is connected to the equal diameter portion; the expanding portion of the reduced diameter portion is connected to the water passage; and one end of the equal diameter portion is the water outlet.

[0014] In some embodiments of the present application, a line connecting the center of the flared portion and the center of the narrowed portion is not colinear with a center line of the equal-diameter portion.

[0015] In some embodiments of the present application, a spherical protrusion is provided at the second end of the guide tube.

[0016] It can be seen from the above technical solutions that the embodiments of the utility model have at least the following advantages and positive effects:

[0017] In the filter element of the embodiment of the utility model, water flows into the accommodating chamber from the water inlet, flows out from the water outlet after being filtered by the filter material, and the bracket is used to support the filter material. The first fulcrum and the second fulcrum of the bracket have a height difference, so that the part of the filter material supported between the first fulcrum and the second fulcrum forms an inclined diversion filter section, so that the water flow drips on the diversion filter section at a certain angle, which can reduce the generation of bubbles compared to the vertical dripping of the water flow on the diversion filter section. At the same time, the water flow will flow obliquely under the guidance of the surface of the diversion filter section, which plays a role in removing the generated bubbles, thereby reducing the resistance of the water flow through the filter material, so that the water flow can smoothly pass through the filter material and improve the filtration efficiency. Further, because the water flow can pass through the filter material more quickly, the water flow is not easy to stagnate on the surface of the filter material, so the speed at which scale, particulate impurities and colloids accumulate on the surface of the filter material can be greatly reduced, so that the filter material is not easy to be blocked, and its service life is increased, thereby improving the filtration efficiency of the filter element device. On the other hand, the presence of the inclined diversion filter section actually increases the effective contact area between the filter material and the water flow, thereby enhancing the filtering effect and improving the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0019] Figure 1 is a schematic structural diagram of a filter element according to an exemplary embodiment.

[0020] Figure 2 yes Figure 1 sectional view of .

[0021] Figure 3 yes Figure 2 A cross-sectional view of the first bracket and the lower shell in FIG.

[0022] Figure 4 yes Figure 2 Schematic diagram of the structure of the first bracket.

[0023] Figure 5 yes Figure 2 Schematic diagram of the structure of the second bracket.

[0024] Figure 6 yes Figure 2 Schematic diagram of the structure of the middle and lower shells.

[0025] Figure 7 yes Figure 2Schematic diagram of the structure of the upper shell.

[0026] Figure 8 yes Figure 2 Schematic diagram of the structure of the filter material.

[0027] The reference numerals are as follows: 1. Shell; 11. Upper shell; 111. Water inlet; 12. Lower shell; 121. Guide tube; 1211. Water outlet; 1212. Water outlet; 122. Internal channel; 1221. Equal diameter portion; 1222. Reduced diameter portion; 2. Bracket; 21. First bracket; 211. Support platform; 212. First supporting rib; 2121. First fulcrum; 213. Second supporting rib; 2131. Second fulcrum; 22. Second bracket; 221. Third fulcrum; 222. Fourth fulcrum; 23. Guide tube; 231. Spherical protrusion; 232. Water gap; 233. Water channel; 3. Filter material; 31. Guide filter section; 4. Filter resin; 5. Filter net. DETAILED DESCRIPTION

[0028] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and described in detail in this specification. It should be understood that this description should be regarded as an exemplary description of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0029] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0030] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various elements of the utility model are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0031] See also Figures 1 to 8The filter element provided in one embodiment of the utility model mainly includes a housing 1, a bracket 2 and a filter material 3. The housing 1 is provided with a receiving cavity, and the receiving cavity has a water inlet 111 and a water outlet 1212. The bracket 2 is arranged in the receiving cavity, and the bracket 2 has a first fulcrum 2121 and a second fulcrum 2131, and the first fulcrum 2121 and the second fulcrum 2131 have a height difference. The filter material 3 is arranged in the receiving cavity and supported on the bracket 2, and the part of the filter material 3 supported between the first fulcrum 2121 and the second fulcrum 2131 forms a diversion filter section 31 arranged in an inclined manner.

[0032] In the filter element of the embodiment of the utility model, water flows into the accommodating cavity from the water inlet 111, and flows out from the water outlet 1212 after being filtered by the filter material 3. The bracket 2 is used to support the filter material 3. The height difference between the first fulcrum 2121 and the second fulcrum 2131 of the bracket 2 is used to form a diversion filter section 31 arranged obliquely, so that the water flow drips on the diversion filter section 31 at a certain oblique angle. Compared with the water flow dripping vertically on the diversion filter section 31, the generation of bubbles can be reduced. At the same time, the water flow will flow obliquely under the guidance of the surface of the diversion filter section 31, which plays a role in removing the generated bubbles, thereby reducing the resistance of water flowing through the filter material 3, allowing the water flow to smoothly pass through the filter material 3, and improving the filtration efficiency. Furthermore, since the water flow can pass through the filter material 3 more quickly, the water flow is not easy to stagnate on the surface of the filter material 3, so the speed at which scale, particulate impurities, colloids and other substances accumulate on the surface of the filter material 3 can be greatly reduced, making the filter material 3 less likely to be blocked, increasing its service life, thereby improving the filtration efficiency of the filter element device. On the other hand, the existence of the inclined diversion filter section 31 actually increases the effective contact area between the filter material 3 and the water flow, thereby enhancing the filtration effect and improving the filtration efficiency.

[0033] See also Figures 1 to 5 The bracket 2 includes a first bracket 21 and a second bracket 22. The first bracket 21 has a first fulcrum 2121 and a second fulcrum 2131. The filter material 3 is supported on the first bracket 21. The second bracket 22 clamps the filter material 3 between the first bracket 21 and the second bracket 22. The first bracket 21 is used to support the filter material 3, and the second bracket 22 presses the filter material 3 on the first bracket 21. The first fulcrum 2121 and the second fulcrum 2131 are arranged on the first bracket 21, so that the filter material 3 has an inclined diversion filter section 31. Through the cooperation between the first bracket 21 and the second bracket 22, the filter material 3 is not easy to loosen and can maintain a stable shape, thereby ensuring that the filtering work can be carried out stably.

[0034] It is conceivable that the inclined flow guiding filter segment 31 of the filter material 3 may be formed by the clamping action of the first bracket 21 and the second bracket 22 , or may be defined by the shape of the filter material 3 itself.

[0035] The second bracket 22 has a third fulcrum 221 and a fourth fulcrum 222, and the third fulcrum 221 and the fourth fulcrum 222 have a height difference. The third fulcrum 221 is set corresponding to the first fulcrum 2121. The fourth fulcrum 222 is set corresponding to the second fulcrum 2131. The third fulcrum 221 and the fourth fulcrum 222 are used to provide auxiliary fulcrums for the diversion filter section 31, so that the diversion filter section 31 can maintain its tilted state more stably, further ensuring the normal operation of the filtering work.

[0036] It should be noted that the height relationship between the first fulcrum 2121, the second fulcrum 2131, the third fulcrum 221 and the fourth fulcrum 222 can be that the first fulcrum 2121 is higher than the second fulcrum 2131, and the third fulcrum 221 is higher than the fourth fulcrum 222, or that the second fulcrum 2131 is higher than the first fulcrum 2121, and the fourth fulcrum 222 is higher than the third fulcrum 221.

[0037] See also Figure 5 In this embodiment, the second bracket 22 includes a third supporting rib, the third supporting rib is an inclined sheet structure, the bottom surface of the third supporting rib is an inclined surface, the third fulcrum 221 is arranged at the first end of the inclined surface, and the fourth fulcrum 222 is arranged at the second end of the inclined surface.

[0038] See also Figures 2 to 4 A receiving groove is formed in the first bracket 21. A support platform 211 is provided on the peripheral side wall of the receiving groove. The peripheral side edge of the filter material 3 is supported on the top surface of the support platform 211, and the peripheral side surface of the filter material 3 is attached to the peripheral side wall of the receiving groove. The support platform 211 enables the filter material 3 to be stably supported in the receiving cavity, and the peripheral side surface of the filter material 3 is attached to the peripheral side wall of the receiving groove, which can effectively prevent water from flowing around the filter material 3, thereby improving the filtering efficiency.

[0039] See also Figure 4, the bracket 2 includes a first bracket 21. The first bracket 21 includes a first support rib 212 and a second support rib 213. One end of the first support rib 212 is flush with one end of the second support rib 213. The first fulcrum 2121 is formed at the other end of the first support rib 212. The second fulcrum 2131 is formed at the other end of the second support rib 213. By setting the first support rib 212 and the second support rib 213, the first bracket 21 has the first fulcrum 2121 and the second fulcrum 2131, so that the filter material 3 can form a diversion filter section 31 arranged in an inclined manner, and the first fulcrum 2121 and the second fulcrum 2131 are not combined, which can reduce the influence on the area through which the water flow can pass to a certain extent, thereby ensuring the filtering efficiency. In other embodiments, the first fulcrum 2121 and the second fulcrum 2131 are separated at both ends of a continuous support rib, and the continuous support rib is attached to the bottom surface of the filter material 3. The water flow cannot pass through, thereby reducing the area through which the water flow can pass through the filter material 3, affecting the filtering efficiency. In this embodiment, a plurality of first supporting ribs 212 and second supporting ribs 213 are arranged in parallel and at intervals.

[0040] It should be noted that the lengths of the first support rib 212 and the second support rib 213 are different. The length of the first support rib 212 may be greater than the length of the second support rib 213 , or the length of the second support rib 213 may be greater than the length of the first support rib 212 .

[0041] It should be noted that the first support rib 212 and the second support rib 213 are combined to form a support rib group, the first fulcrum 2121 and the second fulcrum 2131 are combined to form a fulcrum group, the support rib group can be set to multiple groups, and the multiple groups of support rib groups are arranged at intervals in the extension direction of the filter material 3, so that there are multiple groups of fulcrum groups in the first bracket 21, so that the filter material 3 has multiple diversion transition sections, which can effectively increase the effective contact area between the filter material 3 and the water flow and enhance the filtering effect.

[0042] See also Figures 2 to 6 In this embodiment, the first bracket 21 is provided with two groups of support rib groups, the second support rib 213 in the first group of support rib groups is adjacent to the second support rib 213 in the second group of support rib groups, and the length of the second support rib 213 is greater than the length of the first support rib 212, so that the filter material 3 has two diversion transition sections inclined downward from the middle to both sides, which can effectively guide the water flow from the middle to both sides, avoiding the water flow gathering and staying in the middle position of the filter material 3, resulting in a slow filtration speed.

[0043] See also Figure 2 , Figure 3 and Figure 7The housing 1 is provided with a flow guide 121. The two ends of the flow guide 121 are respectively a water inlet 1211 and a water outlet 1212. The water inlet 1211 is higher than the bottom surface of the accommodating cavity. The flow guide 121 defines the outflow path of the water flow after passing through the filter material 3. There may still be some tiny substances after the water flows through the filter material 3. The tiny substances are precipitated on the bottom surface of the accommodating cavity under the action of gravity. The liquid at the top enters the water inlet 1211 and is discharged from the water outlet 1212, which enhances the filtering effect of the filter element.

[0044] The filter material 3 divides the accommodating cavity into an unpurified area located at the top and a purified area located at the bottom, and the purified area is filled with filter resin 4. The filter resin 4 can further filter the water flow after passing through the filter material 3, thereby improving the filtering effect of the filter element. It can be imagined that the setting of the flow guide tube 121 enables the water flow to fully contact with the filter resin 4 in the purified area before flowing out, which further improves the filtering effect.

[0045] See also Figures 2 to 4 , the filter element also includes a guide tube 23. The first end of the guide tube 23 is open, and the second end of the guide tube 23 is closed. The guide tube 23 is sleeved on the guide tube 121, and the first end of the guide tube 23 is close to the water outlet 1212, and there is a water gap 232 with the bottom surface of the accommodating cavity. The second end of the guide tube 23 is close to the water outlet 1211. There is also a water passage 233 between the guide tube 23 and the guide tube 121, which connects the internal channel 122 of the guide tube 121 and the water gap 232. The water flow passes through the water gap 232, the water passage 233, the water outlet 1211 and the internal channel 122 of the guide tube 121 in turn, and flows out from the water outlet 1212. According to the siphon drainage principle, it can efficiently drain water, accelerate the speed of water discharge from the water outlet 1212, and improve the filtration speed. In this embodiment, the guide tube 23 is integrally connected to the first bracket 21.

[0046] In this embodiment, the internal channel 122 of the flow guide tube 121 includes a constant diameter portion 1221 and a reduced diameter portion 1222 having a tapered shape. The reduced opening of the reduced diameter portion 1222 is connected to the constant diameter portion 1221. The expanded opening of the reduced diameter portion 1222 is connected to the water passage 233. One end of the constant diameter portion 1221 is a water outlet 1212. According to the Bernoulli principle, when a liquid passes through a narrow area of ​​a pipe, the speed of the liquid increases, so the water flow can be accelerated when passing through the reduced diameter portion 1222, further increasing the speed of the water discharge.

[0047] In this embodiment, the line connecting the center of the expanded portion and the center of the reduced portion is not colinear with the center line of the equal diameter portion 1221, and the water flow passing through the reduced diameter portion 1222 is accelerated under the action of centrifugal force, thereby further improving the filtering efficiency of the filter element.

[0048] In this embodiment, a spherical protrusion 231 is provided at the second end of the guide tube 23. The spherical protrusion 231 can promote more water flow into the internal channel 122 of the guide tube 121, thereby increasing the siphoning speed.

[0049] In the above embodiment, the shell 1 includes an upper shell 11 and a lower shell 12, which are detachably connected to form a accommodating cavity, the water inlet 111 is arranged on the upper shell 11, and the guide pipe 121 and the water outlet 1212 are arranged on the lower shell 12.

[0050] In the above embodiment, the filter screen 5 is disposed between the upper shell 11 and the second bracket 22 and between the first bracket 21 and the bottom surface of the lower shell 12 .

[0051] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A filter element, characterized in that: include: The housing is provided with a receiving cavity, and the receiving cavity has a water inlet and a water outlet; A bracket is disposed in the accommodating cavity, the bracket having a first fulcrum and a second fulcrum, and the first fulcrum and the second fulcrum have a height difference; The filter material is arranged in the accommodating cavity and supported on the bracket. The portion of the filter material supported between the first fulcrum and the second fulcrum forms a diversion filter section arranged in an inclined manner.

2. The filter element according to claim 1, characterized in that: The bracket comprises a first bracket and a second bracket; The first bracket has the first fulcrum and the second fulcrum; The filter material is supported on the first bracket; The second bracket clamps the filter material between the first bracket and the second bracket.

3. The filter element according to claim 2, characterized in that: The second bracket has a third fulcrum and a fourth fulcrum, and the third fulcrum and the fourth fulcrum have a height difference; The third fulcrum is arranged corresponding to the first fulcrum; The fourth fulcrum is arranged corresponding to the second fulcrum.

4. The filter element according to claim 2, characterized in that: A receiving groove is formed in the first bracket; A support platform is provided on the peripheral side wall of the accommodating groove; The peripheral edge of the filter material is supported on the top surface of the support platform; The peripheral side surface of the filter material is attached to the peripheral side wall of the accommodating groove.

5. The filter element according to claim 1, characterized in that: The support comprises a first support; The first bracket includes a first supporting rib and a second supporting rib; One end of the first supporting rib is flush with one end of the second supporting rib; The first fulcrum is formed at the other end of the first supporting rib; The second supporting point is formed at the other end of the second supporting rib.

6. The filter element according to claim 1, characterized in that: The housing is provided with a flow guide pipe; The two ends of the guide pipe are respectively a water inlet and a water outlet; The water outlet is higher than the bottom surface of the accommodating cavity.

7. The filter element according to claim 6, characterized in that: The filter element also includes a flow guide tube; The first end of the guide tube is open, and the second end of the guide tube is closed; The guide tube is sleeved on the guide pipe, the first end of the guide tube is close to the water outlet, and there is a water-passing gap between the first end of the guide tube and the bottom surface of the accommodating cavity; The second end of the guide tube is close to the water outlet; A water passage communicating with the inner passage of the flow guide tube and the water passage gap is also provided between the flow guide tube and the flow guide tube.

8. The filter element according to claim 7, characterized in that: The inner passage of the flow guide tube includes a constant diameter portion and a reduced diameter portion having a tapered shape; The narrowing portion of the reduced diameter portion is connected to the equal diameter portion; The expanded portion of the reduced diameter portion is connected to the water passage; One end of the equal diameter portion is the water outlet.

9. The filter element according to claim 8, characterized in that: A line connecting the center of the flared portion and the center of the narrowed portion is not colinear with a center line of the equal-diameter portion.

10. The filter element according to claim 7, characterized in that: The second end of the guide tube is provided with a spherical protrusion.

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