Filter element structure and water purification equipment

Abstract

The utility model relates to the technical field of water purification, in particular to a filter element structure and water purification equipment, the filter element structure comprises a filter bottle body, a filter bottle base, a filter assembly, an outer layer water sealing assembly and a central water sealing assembly, the periphery of the bottom end of the filter bottle body is provided with a clamping block, the filter bottle base is provided with a clamping groove matched with the clamping block, and the clamping groove is matched with the clamping block. The filter bottle body is detachably installed on the filter bottle base, the filter assembly is arranged in the filter bottle body, a water inlet hole and a first water outlet hole are formed in the bottom end of the filter bottle body, the outer layer water sealing assembly reciprocates in the axial direction of the water inlet hole, and the center water sealing assembly reciprocates in the axial direction of the first water outlet hole. By designing the outer-layer water sealing assembly and the central water sealing assembly, opening and closing of the water inlet hole and the first water outlet hole are controlled respectively, and the double water sealing design can effectively prevent water leakage in the filter element maintenance process, so that the water leakage condition caused in the filter element replacement, maintenance or cleaning process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a filter element structure and a water purification device. Background Technology

[0002] After a period of use, filter cartridges typically require replacement, repair, or thorough cleaning due to accumulated impurities and dirt. To perform these maintenance tasks, the filtration section of the filter cartridge must be separated from the overall filter assembly. However, during this process, leakage often occurs due to water pressure inside the filter cartridge. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide at least one beneficial option or create conditions to solve one or more technical problems existing in the prior art.

[0004] The solution to the technical problem of this utility model is: a filter element structure, comprising: a filter bottle body, a filter bottle base, a filter assembly, an outer water sealing assembly, and a central water sealing assembly. The filter bottle body has an installation space inside, and the bottom end of the filter bottle body has an inlet hole and a first outlet hole that are both connected to the installation space. A locking block is provided on the outer periphery of the bottom end of the filter bottle body, and the filter bottle base has a locking groove that cooperates with the locking block. The filter bottle body is detachably installed on the filter bottle base. The filter assembly is disposed in the installation space. The outer water sealing assembly reciprocates along the axial direction of the inlet hole and is used to open or close the inlet hole. The central water sealing assembly reciprocates along the axial direction of the first outlet hole and is used to open or close the first outlet hole.

[0005] As a further improvement to the above technical solution, the outer water sealing assembly includes a first elastic member and a first water sealing member. The first elastic member has a tendency to push the first water sealing member away from the filter bottle body. An outer sealing member is provided on the outer periphery of the first water sealing member. A limiting part is provided on the filter bottle body for abutting against the outer sealing member.

[0006] As a further improvement to the above technical solution, the filter bottle base is also provided with a boss for abutting against one end of the first water sealing component.

[0007] As a further improvement to the above technical solution, the central water sealing assembly includes a second elastic element and a second water sealing element. The second elastic element has a tendency to push the second water sealing element away from the filter bottle body. The filter bottle base is provided with a second water outlet and a central push rod that reciprocates along the axial direction of the second water outlet. One end of the central push rod is used to abut against the second water sealing element.

[0008] As a further improvement to the above technical solution, the filter bottle body includes a central tube, a filter layer wound around the outside of the central tube, and a third non-woven fabric disposed at the top of the central tube. The bottom end of the central tube is connected to the first water outlet, and the bottom end of the filter layer is connected to the water inlet.

[0009] As a further improvement to the above technical solution, the filter layer is provided from bottom to top with a first nonwoven fabric, a first carbon fiber layer, a granular carbon resin layer, a second fiber layer, and a second nonwoven fabric.

[0010] As a further improvement to the above technical solution, the number of the card blocks and the card slots are equal and there are at least two of each. All the card blocks are arranged on the outer periphery of the bottom end of the filter bottle body, and all the card slots are arranged on the filter bottle base.

[0011] As a further improvement to the above technical solution, a guide portion is provided at one end of the card block.

[0012] As a further improvement to the above technical solution, the filter element structure also includes a rotary wrench, which is fixedly connected to the upper end of the filter bottle body.

[0013] A water purification device includes a filter element structure as described in any of the preceding claims.

[0014] Using the above-mentioned filter structure, the water purification equipment can completely remove impurities, odors, and harmful substances from the water, providing pure and clean drinking water and ensuring the safety of users' drinking water. The high-efficiency filtration system and automatic water shut-off function of the filter structure reduce water waste and energy consumption, which is in line with the energy-saving and environmental protection concept of modern society. The filter structure of the water purification equipment is easy to install and disassemble. Users do not need professional knowledge and skills to complete the replacement and maintenance of the filter, which improves the convenience of use. The stable connection and sealing performance of the filter structure enhance the overall durability of the water purification equipment, extend the service life of the equipment, and reduce the user's maintenance costs.

[0015] The beneficial effects of this utility model are as follows: The filter bottle body is used to install the filter assembly. The inlet hole is used to introduce the water to be filtered, while the first outlet hole is used to discharge the filtered water. A locking block is provided on the outer periphery of the bottom of the filter bottle body, and a locking groove is provided on the filter bottle base to cooperate with the locking block. By rotating the filter bottle body, the locking block and the locking groove can be engaged and connected, realizing the detachable installation of the filter element. The filter assembly is set in the installation space of the filter bottle body and is used to filter the introduced water. The outer water sealing assembly reciprocates along the axial direction of the inlet hole. When the outer water sealing assembly is in the open state, water is allowed to enter the installation space of the filter bottle body from the inlet hole; when the outer water sealing assembly is in the closed state, it prevents water from entering or leaving, ensuring that water will not enter or leave the filter element during disassembly, avoiding waste and contamination. The central water seal assembly reciprocates along the axial direction of the first water outlet. When the central water seal assembly is open, filtered water is allowed to flow out of the first water outlet; when the central water seal assembly is closed, it prevents water from flowing out, ensuring that filtered water does not flow out of the filter element when water is not needed, thus maintaining the cleanliness and hygiene of the filter element's interior. By designing an outer water seal assembly and a central water seal assembly to control the opening and closing of the water inlet and the first water outlet respectively, this dual water seal design effectively prevents leakage during filter element maintenance, thereby reducing leakage caused by filter element replacement, repair, or cleaning. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the filter element structure in this utility model;

[0017] Figure 2 This is a schematic diagram of the filter element structure in this utility model.

[0018] In the attached diagram: 1-Filter bottle body, 101-Water inlet, 102-First water outlet, 103-Clocking block, 104-Guide part, 2-Filter bottle base, 201-Clocking groove, 202-Boss, 203-Second water outlet, 204-Central top rod, 3-Filter assembly, 301-Central tube, 302-Filter layer, 303-Third nonwoven fabric, 304-First nonwoven fabric, 305-First carbon fiber layer, 306-Particle carbon resin layer, 307-Second fiber layer, 308-Second nonwoven fabric, 4-Outer water sealing assembly, 401-First elastic element, 402-First water sealing element, 403-Outer sealing element, 5-Central water sealing assembly, 501-Second elastic element, 502-Second water sealing element, 6-Rotating wrench. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments have been briefly explained above. Obviously, the described drawings are only a part of the embodiments of this utility model, not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0021] After a period of use, filter cartridges typically require replacement, repair, or thorough cleaning due to accumulated impurities and dirt. To perform these maintenance tasks, the filtration section of the filter cartridge must be separated from the overall filter assembly. However, during this process, leakage often occurs due to water pressure inside the filter cartridge.

[0022] Therefore, this utility model proposes a filter element structure, referring to... Figures 1-2 The filter includes: a filter bottle body 1, a filter bottle base 2, a filter assembly 3, an outer water sealing assembly 4, and a central water sealing assembly 5. The filter bottle body 1 has an installation space inside. The bottom end of the filter bottle body 1 has an inlet hole 101 and a first outlet hole 102 that are connected to the installation space. The outer periphery of the bottom end of the filter bottle body 1 has a locking block 103. The filter bottle base 2 has a locking groove 201 that cooperates with the locking block 103. The filter bottle body 1 is detachably installed on the filter bottle base 2. The filter assembly 3 is disposed in the installation space. The outer water sealing assembly 4 reciprocates along the axial direction of the inlet hole 101. The outer water sealing assembly 4 is used to open or close the inlet hole 101. The central water sealing assembly 5 reciprocates along the axial direction of the first outlet hole 102. The central water sealing assembly 5 is used to open or close the first outlet hole 102.

[0023] The filter body 1 houses the filter assembly 3. The inlet 101 introduces the water to be filtered, while the first outlet 102 discharges the filtered water. A locking block 103 is located on the outer periphery of the bottom of the filter body 1, and a slot 201 on the filter base 2 engages with the locking block 103. Rotating the filter body 1 allows the locking block 103 to engage with the slot 201, enabling the filter element to be detachably installed. The filter assembly 3 is positioned within the installation space of the filter body 1 and filters the introduced water. An outer sealing assembly 4 reciprocates along the axial direction of the inlet 101. When the outer sealing assembly 4 is open, water is allowed to enter the installation space of the filter body 1 through the inlet 101; when it is closed, it prevents water from entering or leaving, ensuring that water does not enter or leave the filter element during disassembly, thus avoiding waste and contamination. The central water-sealing assembly 5 reciprocates along the axial direction of the first water outlet 102. When the central water-sealing assembly 5 is in the open state, filtered water is allowed to flow out of the first water outlet 102; when the central water-sealing assembly 5 is in the closed state, it prevents water from flowing out, ensuring that filtered water will not flow out of the filter element when water is not needed, thus maintaining the cleanliness and hygiene of the filter element's interior. By designing the outer water-sealing assembly 4 and the central water-sealing assembly 5 to control the opening and closing of the water inlet 101 and the first water outlet 102 respectively, this dual water-sealing design can effectively prevent water leakage during filter element maintenance, thereby reducing water leakage caused by filter element replacement, repair, or cleaning.

[0024] The filter bottle base 2 is installed on the water purification equipment. The filter bottle body 1 is rotated to engage the locking block 103 with the locking groove 201 on the filter bottle base 2, thus fixing the filter element and ensuring the stability and sealing of the filter element structure. When filtration is required, the outer water sealing component 4 is opened, allowing water from the external water tank to enter the installation space of the filter bottle body 1 through the water inlet 101. The water flows through the installation space and is filtered by the filter component 3, removing impurities, odors and harmful substances. The filtered water accumulates inside the filter bottle body 1. When water needs to be collected, the central water sealing component 5 is opened, and the filtered water flows out of the filter element structure through the first water outlet 102 for user use.

[0025] During the disassembly of the filter bottle body and the filter bottle base, water may leak from the gap between the filter bottle and the base, causing water waste and pollution to the surrounding environment. Therefore, in one embodiment, the outer water sealing component 4 includes a first elastic member 401 and a first water sealing member 402. The first elastic member 401 has a tendency to push the first water sealing member 402 away from the filter bottle body 1. An outer sealing member 403 is provided on the outer periphery of the first water sealing member 402, and a limiting part is provided on the filter bottle body 1 for abutting against the outer sealing member 403. When the filter bottle body 1 and the filter bottle base 2 are disassembled, the first elastic member 401 will push the first water sealing member 402 away from the filter bottle body 1. During this process, the outer sealing member 403 will abut against the limiting part to form a tight seal, thereby achieving synchronous water stoppage when the filter bottle is removed, avoiding the problem of water leakage during filter bottle disassembly, and improving the reliability and safety of the filter element structure.

[0026] Preferably, the first elastic element 401 is a first spring, one end of the first spring is connected to the filter bottle body 1, and the other end of the first spring is connected to the first water sealing element 402. The first elastic element 401 has a tendency to push the first water sealing element 402 away from the filter bottle body 1.

[0027] In one embodiment, the filter bottle base 2 is further provided with a boss 202 for abutting against one end of the first water-sealing component 402. Before engagement, the first water-sealing component 402 is in a state of closing the water inlet 101 under the action of the first elastic member 401. When the filter bottle body 1 is rotated into position and the locking block 103 engages with the locking groove 201, the boss 202 will push the first water-sealing component 402 to move away from the position of the water inlet 101. At this time, the first elastic member 401 is compressed, and the first water-sealing component 402 no longer closes the water inlet 101, allowing water to flow into the interior of the filter bottle body 1. The user only needs to rotate the filter bottle body 1 into position, and the water inlet will be automatically opened by the interaction between the boss 202 and the first water-sealing component 402, without additional operation or tools, simplifying the installation and use process of the filter element.

[0028] If the water outlet cannot be tightly closed when not needed, it may lead to water waste and pollution of the surrounding environment. Therefore, in one embodiment, the central water sealing assembly 5 includes a second elastic member 501 and a second water sealing member 502. The second elastic member 501 has a tendency to push the second water sealing member 502 away from the filter bottle body 1. The filter bottle base 2 is provided with a second water outlet 203 and a central push rod 204 that reciprocates axially along the second water outlet 203. One end of the central push rod 204 is used to abut against the second water sealing member 502. After the second water outlet 203 on the filter bottle base 2 is connected to the external water outlet pipe, it pushes one end of the central push rod 204 to abut against the second water sealing element 502, causing the second water sealing element 502 to move. The second elastic element 501 is compressed, and the second water sealing element 502 moves away from the position of the water outlet, thus allowing water to flow out through the second water outlet 203. When drainage is not required, the central push rod 204 will move back to its original position, and the second elastic element 501 will push the second water sealing element 502 to re-close the water outlet. Through the interaction between the central push rod 204 and the second water sealing element 502, the opening and closing of the water outlet can be flexibly controlled. The cooperation between the second water sealing element 502 and the second elastic element 501 ensures the sealing performance of the water outlet when closed. The central push rod 204 simplifies the operation process of water outlet control, making the filter element more flexible and reliable in terms of water outlet control.

[0029] Preferably, the second elastic element 501 is a second spring, one end of the second spring is connected to the filter bottle body 1, and the other end of the second spring is connected to the second water sealing element 502. The second spring has a tendency to push the second water sealing element 502 away from the filter bottle body 1.

[0030] In one embodiment, the filter bottle body 1 includes a central tube 301, a filter layer 302 wound around the outside of the central tube 301, and a third non-woven fabric 303 disposed at the top of the central tube 301. The bottom end of the central tube 301 is connected to the first water outlet 102, and the bottom end of the filter layer 302 is connected to the water inlet 101. When external water flows into the filter element through the water inlet 101, the water flows through the filter layer 302 outside the central tube 301 for filtration, removing odors, harmful substances, and tiny impurities from the water. The filtered water then undergoes final filtration through the third non-woven fabric 303 at the top of the central tube 301, ensuring the purity and cleanliness of the water. The filtered water flows out from the bottom of the central tube 301 and is connected to an external water outlet pipe through the water outlet for user use. By winding the filter layer 302 around the outside of the central tube 301 and setting a third non-woven fabric 303 for final filtration, the filtration path of the filter element is optimized, allowing the water flow to come into fuller contact with the filter material, thereby improving filtration efficiency and effect. The central tube 301 not only provides support and fixation for the filter layer 302, but also ensures that the water flow can smoothly flow in from the inlet hole 101 and out from the outlet hole.

[0031] In one embodiment, the filter layer 302 is provided from bottom to top with a first nonwoven fabric 304, a first carbon fiber layer 305, a particulate carbon resin layer 306, a second fiber layer 307, and a second nonwoven fabric 308. The first nonwoven fabric 304 is located at the bottom of the filter layer 302, serving as the preliminary filter layer 302. It can intercept and remove large particulate impurities in the water, such as silt and rust. The first carbon fiber layer 305 is located above the first nonwoven fabric 304. It is composed of fine carbon fibers and can adsorb harmful substances such as organic matter and residual chlorine in the water, while also having a certain antibacterial effect. The granular carbon resin layer 306 is located above the first carbon fiber layer 305. It is composed of granular carbon resin and has a strong adsorption capacity, capable of removing harmful substances such as odors, pigments, and heavy metals from the water. The second fiber layer 307 is located above the granular carbon resin layer 306. It is composed of fine fiber materials and can further intercept and remove tiny particles and impurities in the water, improving the clarity of the water. The second nonwoven fabric 308 is located at the top of the filter layer 302, serving as the final filter layer 302. It can ensure that the water flow after filtration through the previous layers is purer, while preventing impurities inside the filter layer 302 from being washed out. By setting up multiple layers of filter material, the impact and wear of water flow on a single filter layer 302 can be dispersed, thereby extending the overall life of the filter element. The filter materials in each layer can complement and synergize with each other, improving the durability and filtration performance of the filter element.

[0032] When connecting the filter element to the filter bottle base, uneven force may cause deformation, leading to loosening or detachment during installation or use. Therefore, in one embodiment, the number of locking blocks 103 and locking slots 201 is equal, with at least two of each. All locking blocks 103 are arranged on the outer periphery of the bottom end of the filter bottle body 1, and all locking slots 201 are arranged on the filter bottle base 2. Since the locking blocks 103 and locking slots 201 are respectively arranged on the outer periphery of the bottom end of the filter bottle body 1 and on the filter bottle base 2, when the filter element is connected to the filter bottle base 2, more even force distribution is ensured, reducing filter element deformation or damage caused by uneven force distribution, improving the durability and service life of the filter element. Increasing the number of locking blocks 103 and locking slots 201 and ensuring their equality significantly improves the connection stability between the filter element and the filter bottle base 2. This multi-point connection method more effectively prevents the filter element from loosening or detaching during installation or use, thereby ensuring the normal operation and filtration effect of the filter element.

[0033] Users may find it difficult to accurately align the locking block with the slot when installing the filter element. Therefore, in one embodiment, a guide portion 104 is provided at one end of the locking block 103. The guide portion 104 makes it easier for the filter element to find the correct position during installation, avoiding installation difficulties caused by improper alignment, improving installation efficiency, and reducing the risk of filter element damage due to improper operation. The presence of the guide portion 104 allows the locking block 103 to gradually and tightly engage with the slot 201 after insertion, thereby making it easier to tighten the filter element, ensuring a stable connection between the filter element and the filter bottle base 2, improving the sealing performance of the filter element, and preventing water leakage.

[0034] Users may need to find other tools, such as wrenches or pliers, when installing or replacing filter cartridges. This not only increases the complexity of the operation but may also damage the filter cartridge or filter bottle due to improper tool use. Therefore, in one embodiment, the filter cartridge structure also includes a rotary wrench 6, which is fixedly connected to the upper end of the filter bottle body 1. The rotary wrench 6 provides an intuitive, easy-to-grip and operate part, making it more convenient to install or replace filter cartridges. The filter cartridge can be tightened or loosened simply by rotating the wrench 6, without the need to find other tools or use improper methods to tighten the filter cartridge. This greatly simplifies the operation process, improves the efficiency of installation and disassembly, and also helps to ensure sufficient tightening force when installing the filter cartridge, thereby enhancing the seal between the filter cartridge and the filter bottle.

[0035] A water purification device includes a filter element structure as described in any of the preceding claims.

[0036] Using the above-mentioned filter structure, the water purification equipment can completely remove impurities, odors, and harmful substances from the water, providing pure and clean drinking water and ensuring the safety of users' drinking water. The high-efficiency filtration system and automatic water shut-off function of the filter structure reduce water waste and energy consumption, which is in line with the energy-saving and environmental protection concept of modern society. The filter structure of the water purification equipment is easy to install and disassemble. Users do not need professional knowledge and skills to complete the replacement and maintenance of the filter, which improves the convenience of use. The stable connection and sealing performance of the filter structure enhance the overall durability of the water purification equipment, extend the service life of the equipment, and reduce the user's maintenance costs.

[0037] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A filter cartridge construction characterized by, The utility model relates to a filter bottle, which comprises: a filter bottle body (1) having an installation space inside, a water inlet hole (101) and a first water outlet hole (102) at the bottom end of the filter bottle body (1) and both communicating with the installation space, and a clamping block (103) at the outer periphery of the bottom end of the filter bottle body (1); a filter bottle base (2) having a clamping groove (201) on it that matches the clamping block (103), and the filter bottle body (1) being detachably mounted on the filter bottle base (2); a filter assembly (3) arranged in the installation space; an outer water sealing assembly (4) reciprocating along the axial direction of the water inlet hole (101), and used for opening or closing the water inlet hole (101); a central water sealing assembly (5) reciprocating along the axial direction of the first water outlet hole (102), and used for opening or closing the first water outlet hole (102).

2. The filter cartridge structure of claim 1 wherein, The outer water sealing assembly (4) comprises a first elastic member (401) and a first water sealing member (402), the first elastic member (401) having a tendency to push the first water sealing member (402) away from the filter bottle body (1), and the outer periphery of the first water sealing member (402) being provided with an outer sealing member (403), and the filter bottle body (1) being provided with a limiting portion for abutting against the outer sealing member (403).

3. The filter cartridge structure of claim 2 wherein, The filter bottle base (2) is further provided with a boss (202) for abutting against one end of the first water sealing member (402).

4. The filter cartridge of claim 1 wherein, The central water sealing assembly (5) comprises a second elastic member (501) and a second water sealing member (502), the second elastic member (501) having a tendency to push the second water sealing member (502) away from the filter bottle body (1), the filter bottle base (2) being provided with a second water outlet hole (203) and a central jack (204) reciprocating along the axial direction of the second water outlet hole (203), and one end of the central jack (204) being used for abutting against the second water sealing member (502).

5. The filter cartridge of claim 1 wherein, The filter bottle body (1) comprises a central tube (301), a filter layer (302) wound outside the central tube (301), and a third non-woven fabric (303) arranged at the top end of the central tube (301), the bottom end of the central tube (301) being connected with the first water outlet hole (102), and the bottom end of the filter layer (302) being connected with the water inlet hole (101).

6. The filter cartridge structure of claim 5 wherein, The filter layer (302) is provided with a first non-woven fabric (304), a first carbon fiber layer (305), a granular carbon resin layer (306), a second fiber layer (307), and a second non-woven fabric (308) from bottom to top.

7. The filter cartridge of claim 1 wherein, The number of the clamping blocks (103) and the clamping grooves (201) is equal and at least two, all the clamping blocks (103) being arranged at the outer periphery of the bottom end of the filter bottle body (1), and all the clamping grooves (201) being arranged on the filter bottle base (2).

8. The filter cartridge of claim 1 wherein, One end of the clamping block (103) is provided with a guide portion (104).

9. The filter cartridge of claim 1 wherein, The filter core structure further comprises a rotating wrench (6) fixedly connected with the upper end of the filter bottle body (1).

10. A water purification apparatus characterized by comprising: The filter core structure comprises a filter bottle body (1) and a filter core (2) arranged in the filter bottle body (1). The filter core structure comprises a filter bottle body (1) and a filter core (2) arranged in the filter bottle body (1).

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